JB/T 8084.2-2000 Technical requirements for cold chamber die casting machines
Some standard content:
[CS 77. 180
Machinery Industry Standard of the People's Republic of China
JB/T 8084.2-2000
Cold chamber die casting machines
Technical conditions
Cold chamber die casting machinesTechnical reguirements2000-09-28 issued
State Machinery Industry Bureau
2001-01-01 implementation
8804.2—2000
This standard is a revision of JH/8084.2—1999 Technical Requirements for Cold Die Casting Machines. The main differences between this standard and the original standard after revision are: - The determination of the desmearing degree of the filter pressure system is changed to the microscope method; - The requirements for safety protection are in accordance with 145 and 5545—1991, and the requirements for the first test period of the machine such as jade are cancelled; - The original requirement for the load operation test is not less than 2h, which is for continuous casting of 20 pieces; - Some parameter test items are deleted.
This standard replaces JB/T8084.2[999] from the date of implementation. This standard is issued and managed by the National Machinery Standardization Technical Committee. The drafting units of this standard are: Shanghai Chuanzhu Machinery Co., Ltd., Jinan Zhuling Forging Machinery Research Institute, Ningxia Dongfang Die Casting Machine Tool Co., Ltd., Shanghai Lizhi (·Bi) Machinery Co., Ltd., Jiangsu Zhangnan Special Die Casting Co., Ltd., Fuxin Die Casting Factory, Chengdeshi Machinery General Factory. The main drafters of this standard are: Chen Yihui, Liang Tiandian, Zhu Fengnian, Gu Chengzhuo, Chen Shailou, Er Zhengyi, Cao Fengshi. This standard was first issued in January 1989 as ZB361007-89, and the standard number was adjusted to JB/T8084.2-1999 Machinery Industry Standard of the People's Republic of China
Technical requirements for cold chamber die casting machine
Cold chamber die casting machineg-Technical requirements and scope
JB/T 8084.2-2000
Old version /T80842-[999
This standard specifies the technical requirements, test methods, inspection rules and specifications, installation, transportation and storage of cold chamber die casting machines. This standard is applicable to the production of non-ferrous metal and alloy die castings, whose parting surfaces are horizontal and vertical cold chamber die casting machines with double-layer arrangement [hereinafter referred to as machines].
2 Cited standards
The following standards contain provisions that constitute the text of this standard through reference in this standard. When this standard was revised, the text shown in the text is valid. All standards have been revised. Those who use this standard should explore the possibility of using the new version of the following standards: GA19LJ993
June 2893--:982
June 2994-1996
G766-1
GO5093-1999
GD/T 5226.1—1996
GB/T 7933—19B7
JB/T1430—[993
JB/T1644-1991
JB/T 5365.1—1991
JB/T 5363.21991
JB5545—1991
JB/T6331.2—1992
JB/T 8083—20H0
JB/T 8084.12000
JB/T 8356.1-.1996
JB/T9875—1999
JB10145—1999
3 Terms
The following definitions are adopted in this standard.
3.1 Energy devices
Packaging, storage and transportation pictorial symbols
Safety colors
Safety signs
General technical conditions for industrial systems
Safety and sanitation planning rules for production equipment
Industrial machinery and electrical equipment Part 1: General technical conditions General technical components of hydraulic components
Technical conditions for pressure and solid molding machines General technical conditions for casting machinery
Method for determining the cleanliness of casting machines Method for determining the cleanliness of casting machines by microscopy Technical conditions for safety protection of casting machinery
Method for determining the noise level of casting machines Dry level measurement Die casting machine
Cold chamber die casting machine precision
Machine tool packaging technical conditions
Metal cutting machine tool random technical documents comprehensive die casting machine safety requirements
Xuejia Machinery Industry 2000-09-28 approved 21-01-01 implementation
JB/TB084.2-2000
A kind of device that stores high-pressure wave medium in the warm pipe, which converts potential energy into pressure energy and throws out pressure energy when working as a source of liquid power.
Thunder energy [pressure drop
The pressure in the device decreases after the accumulator releases the energy. 3.3 Slow lubrication test
A kind of force that makes the mechanism of the die casting machine move slowly. This method is used for debugging or troubleshooting. 3.4 Positive
Use the difference in chamber area to generate the positive pressure of the fluid. 3.5 Positive shot
Reflects the relationship between the displacement of the die or punch and time. 3.6 Slow shot
The process of the punch from the puncture position to the end of the mold filling the inner cavity. 3.? Fast shot
The process of the punch quickly filling the cavity with liquid metal after the slow shot. 3.8 Shot speed
The average speed of the shot punch during the slow shot. 3.5 Fast shot speed
The average speed of the shot punch during the fast shot. Set the maximum fast shot speed under the condition of empty shot. . Establish time
Injection pressure, displacement time curve, the time between the stop point of the injection punch movement and an intersection point with 90% of the boost pressure steady value as the horizontal axis. After this intersection, all points on the curve are marked with 0% of the boost pressure steady value, this Figure 1. Establish time = $+. +. Force
-slow injection time: 5-fast injection time, t-system rise time:-increase time:-increase time: P-fast injection pressure: P-system force; Pm-boost pressure state Figure 1 Force, displacement-time curve
3.12 increase time
IR 8084.2-2000
After the injection punch movement stops, the pressure curve is the first time When the hydraulic pressure reaches the dynamic steady-state value (higher than that in Figure 1), the time interval between the pressure end point and the pressure end point can be established. See Figure 3.13. When the air stroke is installed on the die pad of the casting machine, the distance from the end face of the injection punch to the flange surface of the injection chamber during the return stroke is: 3.14. Injection system pressure In a liquid injection system with energy release, the pressure of the injection device is the fixed force. 3.15 Final stroke
Full stroke of the injection cylinder piston
3.6 Steady-state value of boost
The narrow end motion piece of the injection activity is set to pass through the injection pressure of 200ms. 3.1 Pad
During the empty injection test, it is used to replace the holding mold as a cushion effect to withstand the closing force and injection force. 1. The period R value of the table is 0.8=m: The parallelism tolerance of the surface of the work is 0.02/3004 Technical requirements||t t||4,! The conveyor shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the specified procedures. 4.2 The parameters and accuracy of the machine shall comply with the relevant provisions of JR083 and JB8084.1. 4.3 The hydraulic system liquid positive components shall comply with the relevant provisions of GB/T3766 and GR/T7935. 4.4 The gas part shall comply with the relevant provisions of B/T522G.1. 4.5 The appearance requirements of the Lezhu machine shall comply with the requirements of the user. 4.6 The die casting machine shall have a reliable lubrication device. The die casting machine with a closing force of more than 160N shall use a centralized lubrication system. 4.8 The cooling system shall be free of liquid leakage. The minimum operating temperature shall not exceed 5°C during continuous operation. When the upper selected temperature is exceeded, the alarm will be automatically turned off. 4.9 The working fluid medium shall comply with the provisions of the technical documents. The cleanliness of the die casting system shall comply with the provisions of JB/T5365.2. The cleanliness level code is 23/20. The internal cleanliness of the oil cylinder shall comply with the provisions of Appendix A of JB/T5365-1993. 4.10 For each injection, the pressure drop value of the energy-consuming device shall not exceed 0% of the lower operating pressure. 4.11 The assembly of the regulating valve stem of each operating mechanism shall be flexible and the positioning shall be correct. 4.12 For special parts with pressure-bearing channels, they shall undergo a pressure resistance test. The test pressure is 1% of the rated K force.25, hold the pressure for 3 minutes, and there should be no abnormality such as seepage and parts damage. 4.13 The warranty period of the die casting machine shall comply with the provisions of Chapter 8 of B/11644-1991 and be implemented according to the commitment of the contracting party and the manufacturer. 4.14 Shot performance of the press
4.14. The shot performance of the horizontal cold chamber press is shown in Table 1. Force
>1000-6300
>6300~16000
JB/T8094.2-2000
Main space injection speed
4.14.2 Main performance of vertical cold chamber machine See Table 2 Table 2
Molding force
Main space injection speed
4.14.3 Die casting machine slow injection speed is adjusted within the range of 0.1.%,~0.392m/s. Medical selection time
Da Le time business
4.15 The safety protection of the die casting machine shall comply with the provisions of JB10145 and JB5545. For dangerous parts, safety protection equipment must be installed and safety signs should be used. The safety color of the die-casting machine shall comply with the provisions of GB2893, the safety signs shall comply with the provisions of GB2894, and the safety and health design shall comply with the provisions of GB5083. 4.16 The die-casting machine shall have reliable measures to prevent uncontrolled movement or incorrect action sequence. 4.17 The energy-saving device must be manufactured by a manufacturer approved by the national designated case supervision agency and shall have a certificate of conformity. 4.18 Performance inspection
4.18.1 The performance inspection equipment of the die-casting machine includes: energy-saving tools, various sealing parts, special tools and accessories: 4.18.3 According to user needs, the manufacturer can provide a complete machine set consisting of a die-casting cutting press, a part removal and spraying device, a submerged core pulling device, a mold closing force display device and a die-casting process numerical test device. 4.19 The random technical documents shall comply with the relevant provisions of GB/T5226.1, JB/T9575 and JB/T1644.4.70 Requirements for the idle operation test
4.1 The opening and closing speeds shall be flexible and adjustable.
4.20.2 The injection speed shall be flexible and adjustable.
4.20.3 The connection of the standby accumulator shall not shake. 4.26.4 The electrical control system shall be flexible and reliable. 4.20.5 The emergency stop device must be sensitive and reliable. 4.21 Requirements for the full load operation test
4.21.1 Under normal working conditions, the actual die casting test shall be carried out, and the original 20 items shall be correct. 4.21.2 The actual test shall be carried out, and the requirements specified in 4.20 shall be met. 5 Test method
JB/T 8084.22000
5.1 When checking the number and size, the parameters expressed by linear dimensions can be directly measured by the corresponding measuring disc. 5.2 The closing force can be tested by a special closing force test device. 5.3 The accuracy of the chain press shall be in accordance with the provisions of JB/T8084.1. 4 The time of an empty cycle is tested in seconds, and the reading should be the time interval from the time when the actuator starts to move to the time when it stops.
5. Determination of the cleanliness of the pressure-seeking standby
5.5.1 The viscosity of the filter in the oil cylinder shall be measured in accordance with the provisions of JB/15365.1. 5.5.2 The freedom of the hydraulic system shall be measured in accordance with the provisions of JB/T5365.2. 5. Noise production shall be measured according to the provisions of JB/T633.2 under normal idling conditions at the equivalent distance continuous A sound level. 5.? The total air firing velocity, firing force and pressure build-up shall be tested by electrical measurement method and shall be measured with an instrument with a precision not less than that of an oscilloscope.
S.7.1 Determination of maximum air firing velocity
5.7.1.1 Determination conditions
) Energy group: System 1 good pressure.
h) Oscilloscope: time scale 0.018;
Record group belt speed 500mm/s
5. 7. 1.2 Determine
Gencuo Xieding's force, position and front line (see Figure!, subtract 0% of a section after the rapid starting point and before the stop point. Calculate the average speed.www.bzxz.net
5.7.2 Determination of injection force and pressure building time
5.7.2.1 Determination conditions
a) Injection speed: 3m/9+0.2m/s for horizontal cold wide press straightening machine and 2ml/±0.2m/5 for vertical cold rich die casting machine. b) Energy device pressure: system T working pressure. c) Display end: Time scale 0.01s:
Recording paper tape speed 500mmlsc
d) No damping can be added to the oil circuit of the transmitter. 5.7.2.1 Determination of injection chamber
On the measured force-time curve (see Figure 1), the steady-state value of the injection force is obtained, which can be determined by calculating the inner diameter of the injection chamber. 5.1.2.3 Determination of follow-up pressure time
On the measured force-time curve (see Figure 1), calculate the sum of time, pressure drop, and pressure. 5. After each injection, the pressure drop can be determined by measuring the pressure at the accumulator supply port. The pressure drop point should be close to the supply point. 5.9 Maximum injection volume W [ ] is determined by formula (1): B-RAD2
Where: 5 is the filling coefficient of the injection chamber, which is 0.75 for the vertical cold chamber die casting machine and 0.95 for the vertical cold chamber die casting machine: D is the maximum diameter of the injection chamber in m:
B is the injection punch The effective stroke, and; JB/T8084.Z-2000
p——density of pouring alloy, kg/m3; the relevant edible gold values are as follows: zinc: 2.5×102kg/m3; zinc: 6.6×[02kg/m3: copper: 8.0x10khml.
5.1 No. idling test method
5.101 Adjust the accuracy of the die casting machine, install the mold for debugging in the dynamic mold warehouse, adjust the mold and ejection speed, and start the machine to run continuously for no less than 4h
5.10.2 During the operation, if there is a non-correct belt situation: it is allowed to be checked, and the time for the first check shall not exceed 15m, and the cumulative time shall not exceed 30
6. Factory inspection
Each die-casting machine shall be inspected before leaving the factory. The inspection items are as follows: a) Accuracy; b) Stroke of the movable die seat, internal dimensions, mechanical properties, and stroke center of the die seat; d) The internal dimensions of 4.4, 4.5, 4.6, 4.8, 4.10, 4.11, 4.5, 4.16, 4.17, 4.18, 4.19, 4:20 in this standard; d) When a total of 30 units have been produced, one unit shall be inspected for noise and cleanliness. All the above inspection items shall be qualified.
62 Type inspection
6.2.1 The die-casting machine shall be inspected in the following cases: a) Trial production of new products or trial production of old products in the factory; b) When the old products have major changes in design, technology, and materials: c) During normal production, a periodic inspection shall be conducted regularly or after scheduled production. When the product is discontinued for a year, when the national quality supervision agency proposes the requirement for type inspection, 6.2. The number of type inspection samples shall be determined according to the production batch record of the month. If the batch is within 10 units, 1 unit shall be randomly inspected; if the batch is greater than [ units, 2 units shall be randomly inspected.
2.3 Type inspection shall be conducted on all items in Chapter 4 of this standard, and all the inspected items shall be qualified.
1 The exposed parts and spare parts of the die-casting machine and the surface coating and anti-rust shall comply with the provisions of relevant standards. 7.2 The packaging, marking, transportation and storage of the press shall comply with the relevant provisions of JD/T8356.1, GB191 and IB/T1644.16 The die casting machine must have reliable measures to prevent uncontrolled movement or incorrect action sequence. 4.17 The energy-saving device must be manufactured by a manufacturer approved by the designated financial supervision agency of the state and should have a certificate of conformity. 4.18 Performance testing
4.18.1 The performance testing equipment of the die casting machine includes: energy-saving tools, various sealing parts, special tools and accessories: 4.18.3 According to the needs of users, the manufacturer can provide a complete machine set consisting of a die casting cutting press, a part removal and spraying device, a submerged core pulling device, a mold closing force display device and a die casting process numerical test device. 4.19 The random technical documents shall comply with the relevant provisions of GB/T5226.1, JB/T9575 and JB/T1644.4.70 Requirements for the idle operation test
4.1 The opening and closing speeds shall be flexible and adjustable.
4.20.2 The injection speed shall be flexible and adjustable.
4.20.3 The connection of the standby accumulator shall not shake. 4.26.4 The electrical control system shall be flexible and reliable. 4.20.5 The emergency stop device must be sensitive and reliable. 4.21 Requirements for the full load operation test
4.21.1 Under normal working conditions, the actual die casting test shall be carried out, and the original 20 items shall be correct. 4.21.2 The actual test shall be carried out, and the requirements specified in 4.20 shall be met. 5 Test method
JB/T 8084.22000
5.1 When checking the number and size, the parameters expressed by linear dimensions can be directly measured by the corresponding measuring disc. 5.2 The closing force can be tested by a special closing force test device. 5.3 The accuracy of the chain press shall be in accordance with the provisions of JB/T8084.1. 4 The time of an empty cycle is tested in seconds, and the reading should be the time interval from the time when the actuator starts to move to the time when it stops.
5. Determination of the cleanliness of the pressure-seeking standby
5.5.1 The viscosity of the filter in the oil cylinder shall be measured in accordance with the provisions of JB/15365.1. 5.5.2 The freedom of the hydraulic system shall be measured in accordance with the provisions of JB/T5365.2. 5. Noise production shall be measured according to the provisions of JB/T633.2 under normal idling conditions at the equivalent distance continuous A sound level. 5.? The total air firing velocity, firing force and pressure build-up shall be tested by electrical measurement method and shall be measured with an instrument with a precision not less than that of an oscilloscope.
S.7.1 Determination of maximum air firing velocity
5.7.1.1 Determination conditions
) Energy group: System 1 good pressure.
h) Oscilloscope: time scale 0.018;
Record group belt speed 500mm/s
5. 7. 1.2 Determine
Gencuo Xieding's force, position and front line (see Figure!, subtract 0% of a section after the rapid starting point and before the stop point. Calculate the average speed.
5.7.2 Determination of injection force and pressure building time
5.7.2.1 Determination conditions
a) Injection speed: 3m/9+0.2m/s for horizontal cold wide press straightening machine and 2ml/±0.2m/5 for vertical cold rich die casting machine. b) Energy device pressure: system T working pressure. c) Display end: Time scale 0.01s:
Recording paper tape speed 500mmlsc
d) No damping can be added to the oil circuit of the transmitter. 5.7.2.1 Determination of injection chamber
On the measured force-time curve (see Figure 1), the steady-state value of the injection force is obtained, which can be determined by calculating the inner diameter of the injection chamber. 5.1.2.3 Determination of follow-up pressure time
On the measured force-time curve (see Figure 1), calculate the sum of time, pressure drop, and pressure. 5. After each injection, the pressure drop can be determined by measuring the pressure at the accumulator supply port. The pressure drop point should be close to the supply point. 5.9 Maximum injection volume W [ ] is determined by formula (1): B-RAD2
Where: 5 is the filling coefficient of the injection chamber, which is 0.75 for the vertical cold chamber die casting machine and 0.95 for the vertical cold chamber die casting machine: D is the maximum diameter of the injection chamber in m:
B is the injection punch The effective stroke, and; JB/T8084.Z-2000
p——density of pouring alloy, kg/m3; the relevant edible gold values are as follows: zinc: 2.5×102kg/m3; zinc: 6.6×[02kg/m3: copper: 8.0x10khml.
5.1 No. idling test method
5.101 Adjust the accuracy of the die casting machine, install the mold for debugging in the dynamic mold warehouse, adjust the mold and ejection speed, and start the machine to run continuously for no less than 4h
5.10.2 During the operation, if there is a non-correct belt situation: it is allowed to be checked, and the time for the first check shall not exceed 15m, and the cumulative time shall not exceed 30
6. Factory inspection
Each die-casting machine shall be inspected before leaving the factory. The inspection items are as follows: a) Accuracy; b) Stroke of the movable die seat, internal dimensions, mechanical properties, and stroke center of the die seat; d) The internal dimensions of 4.4, 4.5, 4.6, 4.8, 4.10, 4.11, 4.5, 4.16, 4.17, 4.18, 4.19, 4:20 in this standard; d) When a total of 30 units have been produced, one unit shall be inspected for noise and cleanliness. All the above inspection items shall be qualified.
62 Type inspection
6.2.1 The die-casting machine shall be inspected in the following cases: a) Trial production of new products or trial production of old products in the factory; b) When the old products have major changes in design, technology, and materials: c) During normal production, a periodic inspection shall be conducted regularly or after scheduled production. When the product is discontinued for a year, when the national quality supervision agency proposes the requirement for type inspection, 6.2. The number of type inspection samples shall be determined according to the production batch record of the month. If the batch is within 10 units, 1 unit shall be randomly inspected; if the batch is greater than [ units, 2 units shall be randomly inspected.
2.3 Type inspection shall be conducted on all items in Chapter 4 of this standard, and all the inspected items shall be qualified.
1 The exposed parts and spare parts of the die-casting machine and the surface coating and anti-rust shall comply with the provisions of relevant standards. 7.2 The packaging, marking, transportation and storage of the press shall comply with the relevant provisions of JD/T8356.1, GB191 and IB/T1644.16 The die casting machine must have reliable measures to prevent uncontrolled movement or incorrect action sequence. 4.17 The energy-saving device must be manufactured by a manufacturer approved by the state-designated financial supervision agency and should have a certificate of conformity. 4.18 Performance testing
4.18.1 The performance testing equipment of the die casting machine includes: energy-saving tools, various sealing parts, special tools and accessories: 4.18.3 According to user needs, the manufacturer can provide a complete machine set consisting of a die casting cutting press, a part removal and spraying device, a submerged core pulling device, a mold closing force display device and a die casting process numerical test device. 4.19 The accompanying technical documents shall comply with the relevant provisions of GB/T5226.1, JB/T9575 and JB/T1644.4.70 Requirements for the idle operation test
4.1 The opening and closing speeds shall be flexible and adjustable.
4.20.2 The injection speed shall be flexible and adjustable.
4.20.3 The connection of the standby accumulator shall not shake. 4.26.4 The electrical control system shall be flexible and reliable. 4.20.5 The emergency stop device must be sensitive and reliable. 4.21 Requirements for the full load operation test
4.21.1 Under normal working conditions, the actual die casting test shall be carried out, and the original 20 items shall be correct. 4.21.2 The actual test shall be carried out, and the requirements specified in 4.20 shall be met. 5 Test method
JB/T 8084.22000
5.1 When checking the number and size, the parameters expressed by linear dimensions can be directly measured by the corresponding measuring disc. 5.2 The closing force can be tested by a special closing force test device. 5.3 The accuracy of the chain press shall be in accordance with the provisions of JB/T8084.1. 4 The time of an empty cycle is tested in seconds, and the reading should be the time interval from the time when the actuator starts to move to the time when it stops.
5. Determination of the cleanliness of the pressure-seeking standby
5.5.1 The viscosity of the filter in the oil cylinder shall be measured in accordance with the provisions of JB/15365.1. 5.5.2 The freedom of the hydraulic system shall be measured in accordance with the provisions of JB/T5365.2. 5. Noise production shall be measured according to the provisions of JB/T633.2 under normal idling conditions at the equivalent distance continuous A sound level. 5.? The total air firing velocity, firing force and built-up pressure shall be tested by electrical measurement method and shall be measured with an instrument with a precision not less than that of an oscilloscope.
S.7.1 Determination of maximum air firing velocity
5.7.1.1 Determination conditions
) Energy group: System 1 good pressure.
h) Oscilloscope: time scale 0.018;
Record group belt speed 500mm/s
5. 7. 1.2 Determine
Gencuo Xieding's force, position and front line (see Figure!, subtract 0% of a section after the rapid starting point and before the stop point. Calculate the average speed.
5.7.2 Determination of injection force and pressure building time
5.7.2.1 Determination conditions
a) Injection speed: 3m/9+0.2m/s for horizontal cold wide press straightening machine and 2ml/±0.2m/5 for vertical cold rich die casting machine. b) Energy device pressure: system T working pressure. c) Display end: Time scale 0.01s:
Recording paper tape speed 500mmlsc
d) No damping can be added to the oil circuit of the transmitter. 5.7.2.1 Determination of injection chamber
On the measured force-time curve (see Figure 1), the steady-state value of the injection force is obtained, which can be determined by calculating the inner diameter of the injection chamber. 5.1.2.3 Determination of follow-up pressure time
On the measured force-time curve (see Figure 1), calculate the sum of time, pressure drop, and pressure. 5. After each injection, the pressure drop can be determined by measuring the pressure at the accumulator supply port. The pressure drop point should be close to the supply point. 5.9 Maximum injection volume W [ ] is determined by formula (1): B-RAD2
Where: 5 is the filling coefficient of the injection chamber, which is 0.75 for the vertical cold chamber die casting machine and 0.95 for the vertical cold chamber die casting machine: D is the maximum diameter of the injection chamber in m:
B is the injection punch The effective stroke, and; JB/T8084.Z-2000
p——density of pouring alloy, kg/m3; the relevant edible gold values are as follows: zinc: 2.5×102kg/m3; zinc: 6.6×[02kg/m3: copper: 8.0x10khml.
5.1 No. idling test method
5.101 Adjust the accuracy of the die casting machine, install the mold for debugging in the dynamic mold warehouse, adjust the mold and ejection speed, and start the machine to run continuously for no less than 4h
5.10.2 During the operation, if there is a non-correct belt situation: it is allowed to be checked, and the time for the first check shall not exceed 15m, and the cumulative time shall not exceed 30
6. Factory inspection
Each die-casting machine shall be inspected before leaving the factory. The inspection items are as follows: a) Accuracy; b) Stroke of the movable die seat, internal dimensions, mechanical properties, and stroke center of the die seat; d) The internal dimensions of 4.4, 4.5, 4.6, 4.8, 4.10, 4.11, 4.5, 4.16, 4.17, 4.18, 4.19, 4:20 in this standard; d) When a total of 30 units have been produced, one unit shall be inspected for noise and cleanliness. All the above inspection items shall be qualified.
62 Type inspection
6.2.1 The die-casting machine shall be inspected in the following cases: a) Trial production of new products or trial production of old products in the factory; b) When the old products have major changes in design, technology, and materials: c) During normal production, a periodic inspection shall be conducted regularly or after scheduled production. When the product is discontinued for a year, when the national quality supervision agency proposes the requirement for type inspection, 6.2. The number of type inspection samples shall be determined according to the production batch record of the month. If the batch is within 10 units, 1 unit shall be randomly inspected; if the batch is greater than [ units, 2 units shall be randomly inspected.
2.3 Type inspection shall be conducted on all items in Chapter 4 of this standard, and all the inspected items shall be qualified.
1 The exposed parts and spare parts of the die-casting machine and the surface coating and anti-rust shall comply with the provisions of relevant standards. 7.2 The packaging, marking, transportation and storage of the press shall comply with the relevant provisions of JD/T8356.1, GB191 and IB/T1644.018;
Record group belt speed 500mm/s
5. 7. 1.2 Determine
Gencuo Xieding's evil force, position I-interval front line (see Figure!, after the rapid starting point and before the stop point, subtract 0% of the section of travel. Calculate the average speed.
5.7.2 Determination of injection force and pressure building time
5.7.2.1 Determination conditions
a) Injection speed: 3m/9+0.2m/s for horizontal cold wide press straightening machine and 2ml/±0.2m/5 for vertical cold rich die casting machine. b) Seedling pressure: system T working pressure. c) Display end: time scale 0.01s:
Record paper belt speed 500mmlsc
d) The oil circuit connected to the transmitter cannot be damped. 5.7.2.1 Determination of injection chamber
On the measured force-time curve (see Figure 1), the steady-state value of the injection force is obtained, which can be determined by calculating the inner diameter of the injection chamber. 5.1.2.3 Determination of follow-up pressure time
On the measured force-time curve (see Figure 1), calculate the sum of time, pressure drop, and pressure at the accumulator supply port. 5. After each injection, the pressure drop can be determined by measuring the pressure at the accumulator supply port. The pressure drop point should be close to the supply port. 5.9 Maximum injection volume W [ ] is determined by formula (1): B-RAD2
Where: 5 is the filling coefficient of the injection chamber, which is 0.75 for the vertical cold chamber die casting machine and 0.95 for the vertical cold chamber die casting machine: D is the maximum diameter of the injection chamber in m:
B is the injection punch The effective stroke, and; JB/T8084.Z-2000
p——density of pouring alloy, kg/m3; the relevant edible gold values are as follows: zinc: 2.5×102kg/m3; zinc: 6.6×[02kg/m3: copper: 8.0x10khml.
5.1 No. idling test method
5.101 Adjust the accuracy of the die casting machine, install the mold for debugging in the dynamic mold warehouse, adjust the mold and ejection speed, and start the machine to run continuously for no less than 4h
5.10.2 During the operation, if there is a non-correct belt situation: it is allowed to be checked, and the time for the first check shall not exceed 15m, and the cumulative time shall not exceed 30
6. Factory inspection
Each die-casting machine shall be inspected before leaving the factory, and the inspection items are as follows: a) Accuracy; b) Stroke of the movable die seat, internal dimensions, mechanical properties, and stroke center of the die seat; d) The internal dimensions of 4.4, 45, 4.6, 4.8, 4.10, 4.11, 4.5, 4.16, 4.17, 4.18, 4.19, 4:20 in this standard; d) When a total of 30 units have been produced, one unit shall be inspected for noise and cleanliness. All the above inspection items shall be qualified.
62 Type inspection
6.2.1 The die-casting machine shall be inspected in the following cases: a) Trial production of new products or trial production of old products in the factory; b) When the old products have major changes in design, technology, and materials: c) During normal production, a periodic inspection shall be conducted regularly or after scheduled production. When the product is discontinued for a year, when the national quality supervision agency proposes the requirement for type inspection, 6.2. The number of type inspection samples shall be determined according to the production batch record of the month. If the batch is within 10 units, 1 unit shall be randomly inspected; if the batch is greater than [ units, 2 units shall be randomly inspected.
2.3 Type inspection shall be conducted on all items in Chapter 4 of this standard, and all the inspected items shall be qualified.
1 The exposed parts and spare parts of the die-casting machine and the surface coating and anti-rust shall comply with the provisions of relevant standards. 7.2 The packaging, marking, transportation and storage of the press shall comply with the relevant provisions of JD/T8356.1, GB191 and IB/T1644.018;
Record group belt speed 500mm/s
5. 7. 1.2 Determine
Gencuo Xieding's evil force, position I-interval front line (see Figure!, after the rapid starting point and before the stop point, subtract 0% of the section of travel. Calculate the average speed.
5.7.2 Determination of injection force and pressure building time
5.7.2.1 Determination conditions
a) Injection speed: 3m/9+0.2m/s for horizontal cold wide press straightening machine and 2ml/±0.2m/5 for vertical cold rich die casting machine. b) Seedling pressure: system T working pressure. c) Display end: time scale 0.01s:
Record paper belt speed 500mmlsc
d) The oil circuit connected to the transmitter cannot be damped. 5.7.2.1 Determination of injection chamber
On the measured force-time curve (see Figure 1), the steady-state value of the injection force is obtained, which can be determined by calculating the inner diameter of the injection chamber. 5.1.2.3 Determination of follow-up pressure time
On the measured force-time curve (see Figure 1), calculate the sum of time, pressure drop, and pressure at the accumulator supply port. 5. After each injection, the pressure drop can be determined by measuring the pressure at the accumulator supply port. The pressure drop point should be close to the supply port. 5.9 Maximum injection volume W [ ] is determined by formula (1): B-RAD2
Where: 5 is the filling coefficient of the injection chamber, which is 0.75 for the vertical cold chamber die casting machine and 0.95 for the vertical cold chamber die casting machine: D is the maximum diameter of the injection chamber in m:
B is the injection punch The effective stroke, and; JB/T8084.Z-2000
p——density of pouring alloy, kg/m3; the relevant edible gold values are as follows: zinc: 2.5×102kg/m3; zinc: 6.6×[02kg/m3: copper: 8.0x10khml.
5.1 No. idling test method
5.101 Adjust the accuracy of the die casting machine, install the mold for debugging in the dynamic mold warehouse, adjust the mold and ejection speed, and start the machine to run continuously for no less than 4h
5.10.2 During the operation, if there is a non-correct belt situation: it is allowed to be checked, and the time for the first check shall not exceed 15m, and the cumulative time shall not exceed 30
6. Factory inspection
Each die-casting machine shall be inspected before leaving the factory, and the inspection items are as follows: a) Accuracy; b) Stroke of the movable die seat, internal dimensions, mechanical properties, and stroke center of the die seat; d) The internal dimensions of 4.4, 45, 4.6, 4.8, 4.10, 4.11, 4.5, 4.16, 4.17, 4.18, 4.19, 4:20 in this standard; d) When a total of 30 units have been produced, one unit shall be inspected for noise and cleanliness. All the above inspection items shall be qualified.
62 Type inspection
6.2.1 The die-casting machine shall be inspected in the following cases: a) Trial production of new products or trial production of old products in the factory; b) When the old products have major changes in design, technology, and materials: c) During normal production, a periodic inspection shall be conducted regularly or after scheduled production. When the product is discontinued for a year, when the national quality supervision agency proposes the requirement for type inspection, 6.2. The number of type inspection samples shall be determined according to the production batch record of the month. If the batch is within 10 units, 1 unit shall be randomly inspected; if the batch is greater than [ units, 2 units shall be randomly inspected.
2.3 Type inspection shall be conducted on all items in Chapter 4 of this standard, and all the inspected items shall be qualified.
1 The exposed parts and spare parts of the die-casting machine and the surface coating and anti-rust shall comply with the provisions of relevant standards. 7.2 The packaging, marking, transportation and storage of the press shall comply with the relevant provisions of JD/T8356.1, GB191 and IB/T1644.
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