Some standard content:
1CS 65.060.99
Machinery Industry Standard of the People's Republic of China
JB/T10194-2000
Rotorblades of wind turbine
2000-04-24 Issued
State Machinery Industry Bureau
2000-10-01 Implementation
38/T10794—2000
Scope
Cited standards
Abbreviations
Definition of load conditions
Design requirements
Environmental adaptability
Safety and environmental protection
Blade material requirements
Process requirements
Source guarantee
12Test methods
13Inspection regulations and acceptance
14Blade marking and maintenance instructions: 15Blade packaging, storage, Appendix A [Appendix to the standard] Definition of carrying conditions Appendix (Standard endurance) Strength calculation
In/T10194—2000
This standard is formulated with reference to IEC614M-1, IEC61400-23, Danish standard DS472 and German wind turbine certification specifications, and gives general technical requirements for the design, manufacture, materials, technical conditions, test methods, inspection rules of wind turbine rotor blades, as well as the packaging, logistics and storage of wind turbine blades. It is provided as a technical reference for wind turbine blades of domestic and foreign research and development.
Appendix A and Appendix B of this standard are the appendixes of the standard. This standard was proposed by the main wind turbine standardization technical committee and drafted by: China Anti-Aircraft Industry Corporation Baoding Yaoxuan Manufacturing Plant, Shanghai FRP Yi Research Institute: The main drafters of this standard: Tian Ye, Shi Haizeng, Lu Jinhua, Tian Weiguo, and Chen Yuyue. Scope
Machinery Industry Standard of the People's Republic of China
Rotor biades of wind turbine
Rotor biades of wind turbine
This standard specifies the general technical specifications of wind turbine rotor blades JD/T 10194—2000
Standard for wind turbine rotor blades with a swept area of more than 2000 square meters or more. Reference standards
The meanings contained in the following standards shall apply to the provisions of this standard through reference in this standard. When this standard is in its original version, the versions shown are all valid. All standards are subject to revision. Parties using this standard should investigate the possibility of using the newest versions of the following standards: GB/T [447--19B3
GR/T 1449—1983
GR/T 1463—1988
G2576—19R9
GE/T 2577-.-1989
GB/T3356--1999
GD 9969.I·-199B
GBT139B1—1992
GB/T J9001—1994
GB719002—1994
13012944.31998
150 12944.5--1998
IEC 61400.-24[999
3Definitions
The following definitions apply to this standard.
3.1 Braking
Test methods for properties of glass fiber reinforced plastics Test methods for bending properties of glass fiber reinforced plastics Test methods for density and relative stiffness of fiber reinforced plastics Test methods for resin content of glass fiber reinforced plastics Test methods for bending properties of unidirectional fiber reinforced plastics Product description General provisions
General requirements for wind turbine design
Quality assurance model for design, development, production, installation and service Quality assurance model for production, installation and service Materials and paints - Protection of steel structures against corrosion Part 3: Design basis Materials and paints - Protection of steel structures against corrosion Part 3: Protection of steel structures against corrosion Part 3: General provisions
Means that can effectively reduce the rotation speed of the turbine or stop it from rotating. 3.3 Cut-off wind speed
The minimum wind speed at the turbine height when the wind turbine generator set starts to output useful power. 3.3 Cut-out wind speed
The maximum wind speed at the hub height when the wind turbine generator set is outputting useful power. 3.4 Short-term cut-out wind speed
The wind speed at which the safety system is immediately triggered.
Approved by the State Machinery Industry Corporation on April 24, 2000, and implemented on October 1, 2000
3.5 Design reference
The maximum or minimum value used in the design.
3.6 Design conditions
ET10194-200G
Operation modes in which the unit may generate dust (such as power generation, shutdown, etc.) 3.7 External conditions
Factors that affect the operation of wind turbines, including wind speed and other meteorological factors (such as hysteresis, salt spray, dust, etc.) 3.B Gusts
Interval changes in wind speed: its characteristics can be represented by its formation, strength and duration. 3.9 Horizontal axis wind turbines
Wind turbines with the rotor axis basically parallel to the wind direction: 3.10 Hub
A device that can mount blades or blade components on the rotor. 3.11 Hub height
The height of the rotor center from the ground.|| tt||3.11 Standby
The state of a wind turbine generator set slowly building up its reactive power output. 3.13 Limit state
A state in which load acts on the structure 1. If this range is exceeded, the structure no longer meets the design requirements [see 1SD23943.14 Load condition
The resultant load generated by combining the design main conditions and external conditions. 3.15 Average wind speed
The half-average value of the instantaneous wind speed in a given period of time. The time period can be from a few seconds to many years. 3.16 Shutdown
The state after the wind turbine generator set is shut down. 3.17 Output average rate
In a specific way, in order to achieve a certain purpose, a certain output is achieved through a certain load. power. 3.18 Safety system
Full protection device to keep the unit within the design range. 3.19 Rated power
The power that a component, device or equipment can achieve under specified operating conditions, usually given by the manufacturer. 3.20 Rated wind speed
The specific wind speed when the wind turbine reaches the rated power. 3.11 Rotor speed
The rotation speed of the rotor of the wind turbine about its axis. 3.22 Swept area
The projected area of the circle made by the rotation of the rotor blade tip on the plane requiring true wind compensation. 3.23 Shear
JB/T10194-200E
In the plane between vertical and horizontal wind speed, the wind speed changes with height. 3.24 Wind speed
Instantaneous speed of air passing through a specific point in space. 3.25 Two-phase generator group
Device that converts wind energy into electrical energy
3.26 Rayleigh wind speed distribution
Mathematical description of wind speed using Rayleigh formula at the plotted wind speed frequency alone 3.27 Wind speed frequency
Percentage of the total number of wind speed hours in the total interval of the total number of hours. 3.28 Tip speed ratio
Ratio of the tip speed to the wind speed at the same moment. 3.29 Wind energy consumption coefficient
Ratio of the kinetic energy of the wind converted by the wind rotor to the kinetic energy of all wind passing through the rotor sphere area. It is denoted by C. 3.30 Thrust coefficient
Ratio of the thrust generated by the wind rotor to the thrust generated by all wind swept through the wind rotor, denoted by C. 3.31 Torsion coefficient
The ratio of the auxiliary torque of the wind wheel to the torque generated by the wind wheel. 3.32 Aerodynamic performance
The relationship between the surface torque coefficient, torque coefficient, wind energy utilization coefficient and tip speed ratio of the wind wheel. 3.33 Wind power ratio
The design life of the wind force ratio group to work normally below the safe wind speed. 3.34 Wind wheel
The rotating part of the blade and other components that convert wind energy into mechanical energy. 3.35 Blade
The main component with aerodynamic shape that makes the wind wheel rotate around its axis. 3.36 Blade installation angle
The angle between the geometric chord of the root positioning belt and the rotation plane of the blade. 3.37 Size
The absolute value of the geometric chord of the tip of the blade and the geometric chord of the root. 3.38 vibration
The unstable state of the wind turbine blades in the airflow appears in the white-excited vibration. 3. Reynolds number
is an old factor that characterizes the relative size of the flow force and the stationary small. 3.40 Principle
The flow characteristics described by the various parameters of the flow phenomenon are the principle that must be followed when judging the similarity of two flow phenomena. 4. In a pipe designed according to certain requirements, a flow of air with control flow parameters is generated, which is used in aerodynamic test. 3.42 Wind tunnel test
JB/T10194—2000
The test of the aerodynamic characteristics of the model is obtained by moving the air around the model in the wind tunnel test section. 3.43 Disconnection
When the lift coefficient begins to decrease with the negative displacement, or the blades have unbearable vibration or structural perturbation, the mechanism is that the airfoil reaches the boundary layer at a large angle of attack.
3.44 Intermediate line
The curve that connects the center of the inscribed circle on the airfoil surface smoothly. In the front, the point of tangency between the minimum inscribed line and the airfoil line is the starting point of the mid-arc line; in the rear, the point of tangency between the minimum inscribed line and the shroud line is the integral point of the mid-arc line. 3. 45 Leading edge
The forward point of the airfoil.
3.46 Trailing edge
The rear point of the mid-arc line of the airfoil.
3.47 Trailing line
The straight line connecting the front and rear seams.
3.48 Chord length
The length of the chord
3.49 Upper chord
The upper airfoil curve from the leading edge to the trailing edge, 3.50 Lower chord
The lower chord curve from the leading edge to the trailing edge, 3.5 Float
The distance between the upper and lower chords measured perpendicular to the chord of the airfoil. Generally refers to the maximum thickness 3.52 Center of gravity
In a force field, when an object is in any position, the point through which the combined force of all groups or particles of gravity passes. 3.53 Unbalance
The value of the imbalance on a rotor surface is small, does not involve the position of the imbalance, it is equal to the product of the unbalanced mass and its center of mass x the wheelbase.
3,4 Balance
Through the mass distribution of the blades, the balance of each set of blades makes the rotor meet the specified requirements. 3.55 Counting method
The process of compiling loads by simplifying the load-time process into a series of full cycles or cycles. 3.56 Flow counting method
A counting method that considers the stress-strain loop. 4 Abbreviations
"Flat: Wind turbine rotor composite material (FKP): reinforced plastic
5 Load case definition
.TB/T10194-2000
The blade allows the load case definition to refer to Appendix A (Standard Appendix). 6 Design requirements
6. Aerodynamic design
6.1. 1. General measurement
The blade air injection design is the basis of the whole unit design. In order to make the wind turbine unit more efficient, the designed blade adopts a curved change in the chord length and torsion angle distribution: the design method can adopt the force method given in G213981. It can be used 2: For the low-speed type designed for wind turbines, 6.1.3 Rated design wind speed
The rated design wind speed of the blade is selected according to the level specified in Table A1 in Appendix A. 6.1.3 Wind energy utilization coefficient G
In order to improve the output capacity of the unit and reduce the cost of the unit, the wind energy utilization coefficient should be greater than or equal to 0.44. 6.1.4
The aerodynamic design of the blade should provide the chord length of the blade, The radial distribution of blades and the required shape data are to be determined. e.1.5 Aerodynamic loads
Based on the aerodynamic design results, consider the load conditions given in Chapter 5 and calculate the aerodynamic loads acting on the blades. 6.1.6 Operating range
The aerodynamic design of blades should clearly specify the operating wind speed range of the blades. For blades with fixed pitch, the actual pitch should be called blades, and the operating wind speed range should be as wide as possible. For variable pitch blades, the variable range of the blades should be given. 6.2 Structural design
6.2.1 Summary
The blade structural design should be based on the loads in 6.1.5, and take into account the influence of the actual operating environment factors, so that the blades have sufficient strength and rigidity. The blades shall not break during their service life under the specified environmental conditions. In addition, the blade surface is required to be as light as possible and the phase balance between blades shall be considered. The blade strength is usually verified by static stress analysis and fatigue analysis. The stability of the pressure-bearing parts shall be verified: the strength analysis shall be carried out on a sufficient number of surfaces. The number of surfaces to be verified depends on the type and size of the blade. At least four surfaces shall be analyzed. The stress shall be applied to the parts with geometric shapes and material discontinuities. The stress analysis can be verified by both deformation verification and stress test. For blades, the deformation at the largest load point shall be verified to verify that the melting limit is not exceeded. The strength can be verified by a narrow range of analytical methods and test tests to prove that the blade can meet the requirements. Meet the static strength and aeroelastic stability requirements under various design conditions. For strength calculation, see Appendix B (Appendix of the standard). 6.2.2 Safety Factor
I The blade energy design safety factor should be greater than or equal to 1.15.6.2.3
For composite material structure blades, the design should meet the requirements of unit vibration, aeroelastic instability, mechanical function and other design standards to ensure that it will not be damaged under the 50-year gust load without causing catastrophic consequences to the machine. 5
6.2.4 Inherent Frequency
JB/T10194—2DE0
The blade's inherent frequency should be separated from the rotor's frequency to avoid resonance. The inherent frequency can be determined by calculation or actual measurement.
6.2.5 Aeroelastic stability
Vibration and other instabilities of the blades under all design conditions shall be considered, and the blades shall not produce any undesirable vibrations, and the dynamic characteristics of the blades shall be analyzed.
6.2.6 Design service life
The design service life of the blades shall be greater than or equal to 20 years. The structural design shall meet this requirement. The designed service life of the blades can be determined by calculation or by dynamic tests. The load potential used for fatigue analysis and verification can be determined by calculation or by actual measurement; the number of load cycles can be determined by calculation. 6.2.7 Availability
For the mechanical mechanisms in the blades, such as the variable pitch system of variable pitch blades and the tip aerodynamic mechanism of fixed pitch blades (if any), their availability shall meet the requirements of the users. 6.2.8 Physical properties
The structural design of the blade shall also provide the following contents: a) Blade mass pressure and mass distribution:
b) Blade center of gravity position:
Blade rotation speed:
d) Blade girth and stiffness distribution:
) Blade inherent rate of rotation (swing, lift and twist direction) 6. 2. 9 Interface dimensions
The structural design shall provide detailed interface dimensions of general connections: 6.3 Technical requirements
6.3.1 The blade structure shall comply with the requirements of the technical documents formulated by the energy supplier. The blade drawing is the main technical document of the blade. 6.3.2 The materials used to manufacture the blade shall have the supplier's qualification certificate and comply with the requirements specified in the part drawing. Chemical composition, mechanical properties, heat treatment and surface treatment shall comply with the corresponding standards: 6.3.3 The parts and components of the blades shall comply with the production drawings and technical documents. (.3.4 In order to meet the aerodynamic performance of the blades and consider the processability of the blades and the corresponding manufacturing costs, the following tolerance requirements are the minimum values that should be achieved during the batch production of blades:
a) Blade length tolerance: ± (0.% ×) mm, where is the blade width; b) Blade chord length tolerance: ± (1.5% × c) mm, where is the chord length of the airfoil; d) Blade surface thickness tolerance: ± (1 ×) mm, where the airfoil is the thickest; 3) Blade surface tolerance: +04";
= Blade set weight difference: [%
Blade center of gravity difference: ±10mm.
? Environmental adaptability
JB/T10194—2000
When designing and manufacturing blades, the influence of environmental conditions should be considered. Environmental resistance design should be carried out and corresponding measures should be taken to ensure that they have high environmental adaptability.
The blades are exposed to corrosive environmental conditions to a certain extent and are not easy to approach. Due to operating conditions, it is impossible to repeat the anti-corrosion in many cases. Therefore, re-design and material selection are particularly important for anti-corrosion protection measures. The structural design that strengthens and reduces corrosion has a significant impact on the effectiveness and reliability of anti-corrosion. The basic anti-corrosion regulations are listed in ISO12944-1 and JSO12944-5.
For parts that cannot be protected by a polyester layer or a chain layer, appropriate materials can be selected. Where the material is used, a protective layer of anti-corrosion coating should be used. 7.2 Environmental conditions
1. 2.1 Temperature, the blades are designed to operate at a temperature range of -30°C to +50°C. 2.2 Humidity, the blades are designed to operate at a humidity less than or equal to 95%. 7. 2.3 Salt
For wind turbines operating in coastal areas, the blade design should consider the corrosion effect of salt on its components, and take corresponding effective anti-separation measures.
7.2.4 Rainstorm
The blade design should fully consider the possibility of being hit, and take corresponding rainstorm protection measures. The design of the strike protection system shall be carried out in accordance with the requirements of IFC61400-24:1999.
7.2.5 Dust
The blade design should consider the influence of sand and dust, such as the long-term impact of sand and dust on the surface of the blade, the influence on the lubrication of the mechanical rotating parts, and the influence on the balance of the blade.
7.2.6 Radiation
The influence of solar radiation intensity and ultraviolet rays on the aging of materials should be considered, especially for composite blades. 8 Safety and Environmental Protection
8.1 General
The use and manufacture of blades should not have adverse effects on the safety of local residents and the environment. 2 Noise
The noise generated by blades is a component of unit noise, and this factor must be considered when designing blades. 8. 3 Environmental Protection
The materials used to make blades, especially composite materials, may produce some harmful substances during the manufacturing process. Therefore, appropriate materials should be selected so that no harmful dust and debris will be produced during the manufacturing and use process, which will have adverse effects on the environment. 9 Blade Material Requirements
9.1.1 The selection of blade materials should comply with the following criteria: a) High fatigue strength: b) Appropriate static strength: Durability in all environments ;
d) Heavy weight and light weight:
Cost-free
JB/T10194—2000
9.1.2 The selected materials must meet the design and use requirements and be suitable for processing and selection. 9.1.3 The performance and chemical composition of the selected materials should meet the current effective standards or relevant technical requirements. 9.1.4 The material manufacturer should have a quality certification system of GB/T19002 and provide the certificate and inspection sheet of the materials. 9.1.5 The materials should have instructions for use and be used in accordance with the regulations. 9.1,6 The main materials and flash materials used for important parts should be tested for performance after entering the factory. The test type should be carried out according to the design requirements or relevant regulations.
9.1. It is not allowed to use expired materials unless the performance meets the requirements through tests and the relevant procedures are completed before use. 9.1. The performance indicators and quality of the substitute materials should be equivalent to those of the original materials. 9.2 Composite materials
9.2.1 Reinforcement materials
9.1.1. The reinforcement materials of the sheet can be glass fiber and its products, such as yarn, felt, various fabrics, and other fiber products can be used when necessary.
9.2.1.2 The fiber surface must be protected or coated with a reinforcing coating, and must be suitable for the laminate resin used. 9.2.1.3 Glass fiber should use E-glass fiber, R or S-glass fiber, and other types of fibers shall not be used. 9.2.1.4 The brand, performance and specifications of the products shall comply with the current national standards or industry standards. 9.2.1.5 Performance tests shall be carried out in accordance with relevant national standards. 9.2.2 Resin
9.2.2.1 According to the application and requirements, it is divided into laminate resin and gel coat resin. If the two resins are combined or used together, it must be proved that the two resins are compatible, unless the two resins have different structures. 9.2.2.2 Under the curing conditions, the gel coat resin shall have good resistance to moisture and UV radiation and other harmful environmental influences, and shall have good abrasion resistance, low water absorption and high elasticity. Only thixotropic agents, accelerators and curing agents are allowed to be added to the gel coat resin. 9.2.2.3 The laminating resin shall have good contact properties when layered, and good moisture resistance and high anti-aging properties in the cured state. 9.2.2.4 All additives to the resin, such as curing agents, accelerators, curing agents, curing agents and curing agents, shall be coordinated with the resin and compatible with each other to ensure that the resin is fully cured. 9.2.2.5 Fillers shall not affect the performance of the resin. The type and amount of fillers can be determined by testing. The proportion of fillers in the resin shall not exceed 1% by weight (including no more than 1.5% of thixotropic agents), and the proportion of thixotropic agents in the gel coat resin shall not exceed 3%. 9.2.2.6 The material is not soft and does not react. It is composed of inorganic or non-coloring organic dyes. The amount of free material is determined by the manufacturer. The addition ratio is determined by the manufacturer. Otherwise, it is 5% by weight. 9.2.2. The resin, curing agent, catalyst and accelerator should be used according to the manufacturer's process instructions. Usually, a cold assimilation system should be selected. The temperature range of 16-25 degrees Celsius can provide good curing. 2.2.8 The brand, specification and performance of resin and all additives should comply with the current national standards or relevant industry standards. 9.2.3.9 The performance test should be carried out in accordance with the national standards. 9.2.3 General material R/T0194-2000 9.2.3.1 The core material should meet the use requirements and not affect the curing of the material. 92.3.2 The local reinforcement of the metal chip material should be carefully cleaned, degreased, sprayed or other methods should be used to obtain a suitable surface state to achieve a relatively stable connection.
9.2.3.3 Rigid foam plastic can be used as core material, and the foam material used should be a closed-cell structure. 9.2.3.4 Light wood can be used as core material, and must be treated with pest control and insecticide before use: heat treatment and drying treatment, the average moisture content should be less than or equal to 12%,
9. 2.4 No material is required to be fully assembled and properly preserved, and the use time is not less than 30%, and the wood content should have appropriate fineness at the working temperature of the machine.
9.2.5 Adhesive station test
9.2.5.1 It is allowed to use solvent-free adhesive, and it is better to use two-component anti-framing adhesive. If possible, use the same resin as the blade pin,
9.2.5.2 The adhesive must not degrade the bonded material and can ensure the structural performance of the blade. 9.2.6 Performance requirements of glass fiber reinforced plastic board 9.2.6.1 The performance of the glass fiber reinforced plastic layer board shall meet the following requirements: 1) Resin content (coated): 40%=50% (plastic surface, excluding resin layer): h! Degree of curing: epoxy>90%, polyurethane>B5%: Density: 1.7~1.9gtcm
9.7.6.2 The mechanical properties of unidirectional fiber laminate shall meet the following requirements: 2) Tensile strength: 500N/mm:
b) Tensile modulus: 29000N/mm*
e) Flexural modulus: 6UUN/mm;
d Double modulus: Net 20000N/mm
9.2 .6.3±90 The performance of the plastic laminate meets the requirements of the design: a) tensile strength: 3200N/mm
b) tensile modulus: 1G000N/mm;
c) flexural strength: 200N/mm
) bending strength: *16000/mm
9.2.6.4 Test results
The resin content of glass fiber reinforced plastic shall comply with the provisions of GB/2577. The curing degree of glass fiber reinforced plastic shall comply with the provisions of 0B/12576. The density of glass fiber reinforced plastic shall comply with the provisions of GB/T1463. The performance of single fiber reinforced plastic shall comply with the provisions of GBT3356, and the bending performance of fiber reinforced plastic shall comply with the provisions of GB1449. The tensile performance of glass fiber reinforced plastic shall comply with the provisions of GB1447. 91 The selection of blade materials shall comply with the following criteria: a) High fatigue strength: b) Appropriate static strength: Durability in all environments; d) Heavy weight and light weight: Low core value JB/T10194—2000 9.1.2 The selected material must meet the design and use requirements and be suitable for processing and selection. 9.1.3 The performance and chemical composition of the selected material shall comply with the current effective standards or relevant technical requirements. 9.1.4 The material manufacturer shall have a GB/T19002 quality certification system and shall provide the material certificate and inspection form. 9.1.5 The material shall have an instruction manual and be used in accordance with its regulations. 9.1.6 The main materials and flash materials used for important parts shall be tested for performance after entering the factory. The test type shall be carried out in accordance with the design requirements or relevant regulations. 9.1. Expired materials shall not be used unless they are proved to meet the requirements through tests and the relevant procedures are completed before they can be used. 9.1. The performance indicators and quality of the substitute materials shall be equivalent to those of the original materials. 9.2 Composite materials 9.2.1 Reinforcement materials 9.1.1. The reinforcement materials of the sheet can be glass fiber and its products, such as yarn, felt, various fabrics, and other fiber products can be used when necessary. 9.2.1.2 The fiber surface must be protected or coated with a reinforcing coating, and it must be suitable for the resin used. 9.2.1.3 Glass fiber shall be E-glass fiber, R or S-glass fiber, and other types of fibers shall not be used. 9.2.1.4 The brand, performance and specifications of the products shall comply with the current national standards or industry standards. 9.2.1.5 The performance test shall be carried out in accordance with the relevant national standards. 9.2.2 Resins
9.2.2.1 According to the application and requirements, they are divided into laminating resins and gel-coat resins. If the two resins are combined or used in conjunction, they must be proved to be compatible, unless the two resins have the same structure. 9.2.2.2 Under the curing conditions, the gel-coat resin shall have good resistance to moisture and UV radiation and other harmful environmental influences, and the film shall have good abrasion resistance, low water absorption and high elasticity. Only thixotropic agents, knockout agents and solidifiers are allowed to be added to the gel-coat resin. 9.2.2.3 The laminating resin shall have good contact properties when plying, and good moisture resistance and high anti-aging properties in the cured state. 9.2.2.4 All additives to the resin, such as curing agent, accelerator, oxidizer, primer and additive, shall be coordinated with the resin and compatible with each other to ensure complete curing of the resin. 9.2.2.5 Fillers shall not affect the main properties of the resin. The type and amount of fillers can be determined by testing. The proportion of fillers in the resin shall not exceed 1% by weight (including 1.5% of thixotropic agent), and the proportion of thixotropic agent in the gel coat resin shall not exceed 3% by weight. 9.2.2.6 The additives shall not be soft and shall be composed of inorganic or non-coloring organic dyes. The additive ratio shall be determined by the manufacturer. The filling ratio shall be as specified by the manufacturer, otherwise it shall be 5% by weight. 9.2.2. Resin, curing agent, catalyst and accelerator should be used according to the process instructions of the manufacturer. Usually, cold curing system should be selected. 16-25℃ temperature range is good for curing. 2.2.8 The brand, specification and performance of resin and all additives should meet the current national standards or relevant industry standards. 9.2.3.9 Performance test should be carried out according to national standards. 9.2.3 General material R/T0194-2000 9.2.3.1 The core material should meet the use requirements and not affect the curing of the core material. 9.2.3.2 The local reinforcement of the metal chip material should be cleaned, degreased, sprayed or other methods should be used to obtain a suitable surface state so as to achieve a relatively stable connection. 9.2.3.3 Rigid foam plastics can be used as core materials. The foam material used should be a closed-cell structure. 9.2.3.4 Lightweight wood can be used as a material. Before use, it must be treated with pest control and insecticides: heat treatment and drying treatment must be carried out. The average moisture content should be less than or equal to 12%. 9.2.4 No material should be fully prepared and properly preserved. After use, the moisture content of the tree should not be less than 30%. It should have appropriate fineness and toughness at the working temperature. 9.2.5 Adhesive test 9.2.5.1 It is allowed to use solvent-free adhesives. It is better to use two-component anti-framing adhesives. If possible, use the same resin as the blade pin. 9.2.5.2 The adhesive must not degrade the bonded material and can ensure the structural performance of the blade. 9.2.6 Performance requirements of glass fiber reinforced plastic board 9.2.6.1 The performance of the glass fiber reinforced plastic layer board shall meet the following requirements: 1) Resin content (coated): 40%=50% (plastic surface, excluding resin layer): h! Degree of curing: epoxy>90%, polyurethane>B5%: Density: 1.7~1.9gtcm
9.7.6.2 The mechanical properties of unidirectional fiber laminate shall meet the following requirements: 2) Tensile strength: 500N/mm:
b) Tensile modulus: 29000N/mm*
e) Flexural modulus: 6UUN/mm;
d Double modulus: Net 20000N/mm
9.2 .6.3±90 The performance of the plastic laminate meets the requirements of the design: a) tensile strength: 3200N/mm
b) tensile modulus: 1G000N/mm;
c) flexural strength: 200N/mm
) bending strength: *16000/mm
9.2.6.4 Test results
The resin content of glass fiber reinforced plastic shall comply with the provisions of GB/2577. The curing degree of glass fiber reinforced plastic shall comply with the provisions of 0B/12576. The density of glass fiber reinforced plastic shall comply with the provisions of GB/T1463. The performance of single fiber reinforced plastic shall comply with the provisions of GBT3356, and the bending performance of fiber reinforced plastic shall comply with the provisions of GB1449. The tensile performance of glass fiber reinforced plastic shall comply with the provisions of GB1447. 91 The selection of blade materials shall comply with the following criteria: a) High fatigue strength: b) Appropriate static strength: Durability in all environments; d) Heavy weight and light weight: Low core value JB/T10194—2000 9.1.2 The selected material must meet the design and use requirements and be suitable for processing and selection. 9.1.3 The performance and chemical composition of the selected material shall comply with the current effective standards or relevant technical requirements. 9.1.4 The material manufacturer shall have a GB/T19002 quality certification system and shall provide the material certificate and inspection form. 9.1.5 The material shall have an instruction manual and be used in accordance with its regulations. 9.1.6 The main materials and flash materials used for important parts shall be tested for performance after entering the factory. The test type shall be carried out in accordance with the design requirements or relevant regulations. 9.1. Expired materials shall not be used unless they are proved to meet the requirements through tests and the relevant procedures are completed before they can be used. 9.1. The performance indicators and quality of the substitute materials shall be equivalent to those of the original materials. 9.2 Composite materials 9.2.1 Reinforcement materials 9.1.1. The reinforcement materials of the sheet can be glass fiber and its products, such as yarn, felt, various fabrics, and other fiber products can be used when necessary. 9.2.1.2 The fiber surface must be protected or coated with a reinforcing coating, and it must be suitable for the resin used. 9.2.1.3 Glass fiber shall be E-glass fiber, R or S-glass fiber, and other types of fibers shall not be used. 9.2.1.4 The brand, performance and specifications of the products shall comply with the current national standards or industry standards. 9.2.1.5 The performance test shall be carried out in accordance with the relevant national standards. 9.2.2 Resins
9.2.2.1 According to the application and requirements, they are divided into laminating resins and gel-coat resins. If the two resins are combined or used in conjunction, they must be proved to be compatible, unless the two resins have the same structure. 9.2.2.2 Under the curing conditions, the gel-coat resin shall have good resistance to moisture and UV radiation and other harmful environmental influences, and the film shall have good abrasion resistance, low water absorption and high elasticity. Only thixotropic agents, knockout agents and solidifiers are allowed to be added to the gel-coat resin. 9.2.2.3 The laminating resin shall have good contact properties when plying, and good moisture resistance and high anti-aging properties in the cured state. 9.2.2.4 All additives to the resin, such as curing agent, accelerator, oxidizer, primer and additive, shall be coordinated with the resin and compatible with each other to ensure complete curing of the resin. 9.2.2.5 Fillers shall not affect the main properties of the resin. The type and amount of fillers can be determined by testing. The proportion of fillers in the resin shall not exceed 1% by weight (including 1.5% of thixotropic agent), and the proportion of thixotropic agent in the gel coat resin shall not exceed 3% by weight. 9.2.2.6 The additives shall not be soft and shall be composed of inorganic or non-coloring organic dyes. The additive ratio shall be determined by the manufacturer. The filling ratio shall be as specified by the manufacturer, otherwise it shall be 5% by weight. 9.2.2. Resin, curing agent, catalyst and accelerator should be used according to the process instructions of the manufacturer. Usually, cold curing system should be selected. 16-25℃ temperature range is good for curing. 2.2.8 The brand, specification and performance of resin and all additives should meet the current national standards or relevant industry standards. 9.2.3.9 Performance test should be carried out according to national standards. 9.2.3 General material R/T0194-2000 9.2.3.1 The core material should meet the use requirements and not affect the curing of the core material. 9.2.3.2 The local reinforcement of the metal chip material should be cleaned, degreased, sprayed or other methods should be used to obtain a suitable surface state so as to achieve a relatively stable connection. 9.2.3.3 Rigid foam plastics can be used as core materials. The foam material used should be a closed-cell structure. 9.2.3.4 Lightweight wood can be used as a material. Before use, it must be treated with pest control and insecticides: heat treatment and drying treatment must be carried out. The average moisture content should be less than or equal to 12%. 9.2.4 No material should be fully prepared and properly preserved. After use, the moisture content of the tree should not be less than 30%. It should have appropriate fineness and toughness at the working temperature. 9.2.5 Adhesive test 9.2.5.1 It is allowed to use solvent-free adhesives. It is better to use two-component anti-framing adhesives. If possible, use the same resin as the blade pin. 9.2.5.2 The adhesive must not degrade the bonded material and can ensure the structural performance of the blade. 9.2.6 Performance requirements of glass fiber reinforced plastic board 9.2.6.1 The performance of the glass fiber reinforced plastic layer board shall meet the following requirements: 1) Resin content (coated): 40%=50% (plastic surface, excluding resin layer): h! Degree of curing: epoxy>90%, polyurethane>B5%: Density: 1.7~1.9gtcm
9.7.6.2 The mechanical properties of unidirectional fiber laminate shall meet the following requirements: 2) Tensile strength: 500N/mm:
b) Tensile modulus: 29000N/mm*
e) Flexural modulus: 6UUN/mm;
d Double modulus: Net 20000N/mm
9.2 .6.3±90 The performance of the plastic laminate meets the requirements of the design: a) tensile strength: 3200N/mm
b) tensile modulus: 1G000N/mm;
c) flexural strength: 200N/mm
) bending strength: *16000/mm
9.2.6.4 Test results
The resin content of glass fiber reinforced plastic shall comply with the provisions of GB/2577. The curing degree of glass fiber reinforced plastic shall comply with the provisions of 0B/12576. The density of glass fiber reinforced plastic shall comply with the provisions of GB/T1463. The performance of single fiber reinforced plastic shall comply with the provisions of GBT3356, and the bending performance of fiber reinforced plastic shall comply with the provisions of GB1449. The tensile performance of glass fiber reinforced plastic shall comply with the provisions of GB1447. 96 The material is soft and not brittle, and is composed of inorganic or non-coloring organic dyes. The amount of free material is determined by the manufacturer. The addition ratio is determined by the manufacturer. Otherwise, it is 5% by weight. 9.2.2. The resin, curing agent, catalyst and accelerator should be used according to the manufacturer's process instructions. Usually, a cold assimilation system should be selected. The temperature range of 16-25 degrees Celsius is good for curing. 2.2.8 The brand, specification and performance of resin and all additives should comply with the current national standards or relevant industry standards. 8
9.2.3.9 The performance test should be carried out in accordance with the national standards. 9.2.3 Total material
R/T0194-2000
9.2.3.1 The core material should meet the use requirements and not affect the curing of the material. 92.3.2 The local reinforcement of the metal chip material should be carefully cleaned, degreased, sprayed or other methods should be used to obtain a suitable surface state to achieve a relatively stable connection.
9.2.3.3 Rigid foam plastic can be used as core material, and the foam material used should be a closed-cell structure. 9.2.3.4 Light wood can be used as core material, and must be treated with pest control and insecticide before use: heat treatment and drying treatment, the average moisture content should be less than or equal to 12%,
9. 2.4 No material is required to be fully assembled and properly preserved, and the use time is not less than 30%, and the wood content should have appropriate fineness at the working temperature of the machine.
9.2.5 Adhesive station test
9.2.5.1 It is allowed to use solvent-free adhesive, and it is better to use two-component anti-framing adhesive. If possible, use the same resin as the blade pin,
9.2.5.2 The adhesive must not degrade the bonded material and can ensure the structural performance of the blade. 9.2.6 Performance requirements of glass fiber reinforced plastic board 9.2.6.1 The performance of the glass fiber reinforced plastic layer board shall meet the following requirements: 1) Resin content (coated): 40%=50% (plastic surface, excluding resin layer): h! Degree of curing: epoxy>90%, polyurethane>B5%: Density: 1.7~1.9gtcm
9.7.6.2 The mechanical properties of unidirectional fiber laminate shall meet the following requirements: 2) Tensile strength: 500N/mm:
b) Tensile modulus: 29000N/mm*
e) Flexural modulus: 6UUN/mm;
d Double modulus: Net 20000N/mm
9.2 .6.3±90 The performance of the plastic laminate meets the requirements of the design: a) tensile strength: 3200N/mm
b) tensile modulus: 1G000N/mm;
c) flexural strength: 200N/mm
) bending strength: *16000/mm
9.2.6.4 Test results
The resin content of glass fiber reinforced plastic shall comply with the provisions of GB/2577. The curing degree of glass fiber reinforced plastic shall comply with the provisions of 0B/12576. The density of glass fiber reinforced plastic shall comply with the provisions of GB/T1463. The performance of single fiber reinforced plastic shall comply with the provisions of GBT3356, and the bending performance of fiber reinforced plastic shall comply with the provisions of GB1449. The tensile performance of glass fiber reinforced plastic shall comply with the provisions of GB1447. 96 The material is soft and not brittle, and is composed of inorganic or non-coloring organic dyes. The amount of free material is determined by the manufacturer. The addition ratio is determined by the manufacturer. Otherwise, it is 5% by weight. 9.2.2. The resin, curing agent, catalyst and accelerator should be used according to the manufacturer's process instructions. Usually, a cold assimilation system should be selected. The temperature range of 16-25 degrees Celsius is good for curing. 2.2.8 The brand, specification and performance of resin and all additives should comply with the current national standards or relevant industry standards. 8
9.2.3.9 The performance test should be carried out in accordance with the national standards. 9.2.3 Total material
R/T0194-2000
9.2.3.1 The core material should meet the use requirements and not affect the curing of the material. 92.3.2 The local reinforcement of the metal chip material should be carefully cleaned, degreased, sprayed or other methods should be used to obtain a suitable surface state to achieve a relatively stable connection.
9.2.3.3 Rigid foam plastic can be used as core material, and the foam material used should be a closed-cell structure. 9.2.3.4 Light wood can be used as core material, and must be treated with pest control and insecticide before use: heat treatment and drying treatment, the average moisture content should be less than or equal to 12%, www.bzxz.net
9. 2.4 No material is required to be fully assembled and properly preserved, and the use time is not less than 30%, and the wood content should have appropriate fineness at the working temperature of the machine.
9.2.5 Adhesive station test
9.2.5.1 It is allowed to use solvent-free adhesive, and it is better to use two-component anti-framing adhesive. If possible, use the same resin as the blade pin,
9.2.5.2 The adhesive must not degrade the bonded material and can ensure the structural performance of the blade. 9.2.6 Performance requirements of glass fiber reinforced plastic board 9.2.6.1 The performance of the glass fiber reinforced plastic layer board shall meet the following requirements: 1) Resin content (coated): 40%=50% (plastic surface, excluding resin layer): h! Degree of curing: epoxy>90%, polyurethane>B5%: Density: 1.7~1.9gtcm
9.7.6.2 The mechanical properties of unidirectional fiber laminate shall meet the following requirements: 2) Tensile strength: 500N/mm:
b) Tensile modulus: 29000N/mm*
e) Flexural modulus: 6UUN/mm;
d Double modulus: Net 20000N/mm
9.2 .6.3±90 The performance of the plastic laminate meets the requirements of the design: a) tensile strength: 3200N/mm
b) tensile modulus: 1G000N/mm;
c) flexural strength: 200N/mm
) bending strength: *16000/mm
9.2.6.4 Test results
The resin content of glass fiber reinforced plastic shall comply with the provisions of GB/2577. The curing degree of glass fiber reinforced plastic shall comply with the provisions of 0B/12576. The density of glass fiber reinforced plastic shall comply with the provisions of GB/T1463. The performance of single fiber reinforced plastic shall comply with the provisions of GBT3356, and the bending performance of fiber reinforced plastic shall comply with the provisions of GB1449. The tensile performance of glass fiber reinforced plastic shall comply with the provisions of GB1447. 9
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