JB/T 9062-1999 Technical requirements for coating of heating, ventilation and air conditioning equipment
Some standard content:
[CS91,140.30
Machinery Industry Standard of the People's Republic of China
JB/T9062—1999
Technical conditions for heating, ventilation and air-conditioning equipment
This standard is a revision of ZBJ7201788 "Technical conditions for heating, ventilation and air-conditioning equipment". Issued on July 12, 1999
National Bureau of Machinery Industry
Implementation on January 1, 2000
JB/T9062—1999bZxz.net
This standard is a revision of ZBJ7201788 "Technical conditions for heating, ventilation and air-conditioning equipment". Compared with ZBJ7201738, the main technical contents of this standard have been changed as follows: Chapter 5, Chapter 6, Chapter 7, Chapter 8, Chapter 10 and Chapter 11 of ZBJ72017-88 are now merged into Chapter 1; The performance requirements in Table 1 have been modified as necessary; Appendix B of ZBJ72017-88 is the standard Appendix A is the standard summary. This standard will replace BJ?2017-88 standard issued by the National Refrigeration Equipment Standardization Technical Committee. The responsible drafting unit of this standard: Shanghai Tongye-Carrier Air Conditioning Co., Ltd. The drafters of this standard: Weirong, Zhang Wei. 1Fang Gu
Machinery Industry Standard of the People's Republic of China
Heating, Ventilation and Air-Conditioning Equipment
Painting Technical Conditions
The painting specifications for heating, ventilation and air-conditioning equipment JB/T 9062—1999
Generation ZR 172 017-88
This standard specifies the source and technical requirements, performance tests and inspection criteria for ventilation and air conditioning equipment. This standard applies to ventilation and air conditioning equipment (hereinafter referred to as equipment; it does not apply to air-receiving plates, dust removal equipment, etc.: 2 Reference Standards
The provisions contained in the following standards constitute the text of this standard through reference in this standard. When this standard is published, the versions shown are all effective. The above standards may be revised. Parties using this standard shall discuss the possibility of using the latest version of the following standards. GB/T1720—1979
GB/E1727—1992
GB/E1730—1993
GB/T 1731..J993
GB/T1732
GB/T1733
GR/T 1715—1979
GB/ 1740—1979
GB/T 17631979
GB.T 1764..- 1979
08/T1766-1995
GB 65141995
GB.T9276—1996
3 Definitions
This standard adopts the following definitions:
3.1 Translation and processing
Determination method for paint film adhesion
General preparation method for paint film
Determination method for paint film thickness Pendulum damping test
Determination method for paint film flexibility
Film impact test
Determination method for water-based film
Determination method for heat resistance of paint film
Determination method for condensation heat resistance of film||tt ||Determination of chemical resistance of paint film
Film quality
Rating method for paint and paint degreasing test Safety regulations for coating operations Coating process safety and ventilation and purification Coating line climate test method
The metal surface is degraded by chemical reaction or a non-metallic, multi-functional acid salt. 3.2 Strength
The ability of the coating to adhere to the coated surface or between the coatings. 3.3 Gloss
Approved by the State Machinery Industry Association on July 12, 1999, 2000-01-(1 Implementation
JB/T 90G2—1999
When the surface of an object is illuminated by light, the light will be reflected for a certain period of time. 3.4 Water resistance
Water resistance of coating:
3.5 Salt water resistance
Salt water resistance of coating,
3.6 Coating age
Durability of coating under natural gas conditions: 3.7 Flexibility
Cracking and peeling of coating on the material after the test. 3.9 Impact resistance
evaluates the performance of the coating under high-speed impact with high load. 3.9 Hardness
refers to the force exerted when the coating surface is penetrated by another hard object. 3.10 Heat resistance
refers to the performance of the coating when it is resistant to heat (47=1) and high heat (94%-9%1). 3. 1. Resistance to peeling
The coating can still maintain good performance under certain high temperature. 3.12. Viscosity
A characteristic of the fluid internal resistance to movement. 3.13. Coating
Organic substances in a flowing state or powdered state, which can be applied on the surface of an object and can be dried and solidified to form a film: it must be able to adhere well to the surface of the object
3.14. Coating
refers to the process of applying the coating to the clean surface of the object, and finally drying it or spreading the coating on the surface of the object. 4. Coating method
4.1. Manual coating method
4.1. Air blasting Coating method
4.3 Airless spraying method
4.4 Static spraying method
4.5 Electrophoretic coating method
4.6 Powder non-melting coating method
4.7 Powder electrostatic coating method
3 Requirements
5.1 Requirements for parts and components of the equipment to be installed 5.1.1 The parts to be painted can be painted only after inspection. 5.1.2 When the parts and components have special requirements such as heat resistance and oil resistance, the corresponding coating should be used. 2
JB/T9062—1999
5.1.3 Parts made of aluminum, aluminum, etc. 5.2 Surface treatment requirements before installation
5.2.1 The surface of the parts should not have burrs and sharp edges, and the welding, flash, and other defects, as well as metal, oil and other impurities should be removed.
5.2.2 The surface of the parts should be cleaned by machine, shot blasting, etc. to remove the surface layer, sand, paint and other attachments. 5.2.3 According to the rust level of the surface of sheet metal, welded parts, etc., manual or mechanical treatment methods should be used to ensure that the surface reaches the treatment quality level required by the paint according to Appendix A (Appendix to the Standard). 5.2.4 Removal When using pre-oil, heat-resistant paint, etc., the non-phosphating surface can only be painted after being processed to the original color. 2.5 For parts and components with special requirements, phosphating treatment should be performed after the surface is phosphated, and the thickness of the phosphating film is determined according to the requirements of the installation process. 5.3 Manual, air, airless, electrostatic, and electrophoretic coating methods. 5.3.1 Sheet metal parts, riveted parts, and other parts with hammer marks should be filled with putty. Scrape the entire surface with a thin layer of putty, and then slightly polish the second layer of putty, and make sure it is smooth and even. The thickness of each layer of putty should not exceed 0.5mm, and each layer of putty should be evenly coated with the previous layer before the next process is selected. 5. 3.2 Primer coating
5.1.2. The coating should be uniform and complete, and the coating thickness should be between 27-1um. 5.3.2.2 The drying of the first layer should be determined according to the relevant requirements of the coating. 5.3.3 The second layer should be cleaned and free of dust, dirt, etc. 6.3.3.2 The number of topcoats to be applied depends mainly on the appearance and decoration of the product and its use conditions. For products with high decorative requirements and special use conditions, 2-3 layers or more are required, and the coating thickness is generally 20-40μm. 5.3.3.3 The topcoat should be complete, uniform, consistent in color, and without defects in appearance. 5.3.3.4 The coating method should be determined according to the relevant requirements of the coating. 5.1.4 Each surface should be polished before painting to strengthen the adhesion of the coating: 5.3.5 The diluted coating should be explained according to the relevant technical requirements. 5.3.6 The spraying material should not exceed 5% of the ring, and the bubbles should not be smooth: 5.3.7 In addition, the material should be painted in an environment with a relative humidity not exceeding 70%. When the relative humidity exceeds 70%, the corresponding measures should be taken: 5.4 The powder is soluble in water, and the material should be heated and chemically treated. 5.4.2 When applying the powder electrostatically, use a good conductive paint. 4.3 The powder is easy to use and needs to be painted. 5.4.4 The coating material does not need to be heated once it is dispersed, but the flowability and coating should be preheated to above the melting point of the powder: In order to obtain a thick coating, other powder coating methods can be preheated.
5.4.5 After heating and curing (or curing), a chlorine-free cooling treatment should be carried out. 5.4.6 The coating thickness of the melting and burning coating method is generally 100~500μm: the coating thickness of the powder light electroplating coating method is 4-210μm, and the coating thickness can reach 100-500μm after preheating. 5.4. The heating number is based on the regulations of the plasticization (curing) of the powder coating: 5.5 Selection and acceptance requirements of materials, thinners, and putties 3
JB/T 9061—199%
5.5.1 The color, appearance and coating performance of the coating material shall meet the specified design requirements and be durable and stable during use to prevent the slow corrosion of non-sensitive media.
5.5.2 The coating shall have good adhesion to the surface to be coated and the matching between the layers shall be good when multi-layer coating is applied. 5.5.3 The coating performance, coal performance and coating performance of the selected paint shall be consistent with the coating conditions. 5.5.4 Try to select materials with low toxicity and less pollution. 5.5.5 When diluting the paint, use The material shall be a special or special thinner for the coating. 5.5.6 The coating shall have good coating properties, drying properties, sanding properties, filling properties, wear resistance, small shrinkage and absorption properties, and good adhesion of the coating.
5.5. The following items shall be inspected and accepted for the imported coatings and coatings according to relevant standards: a) coating: appearance color, dry burning time, gloss, adhesion, viscosity, etc.; b) coating: pre-oiling, etc.
5.6 Coating inspection
5.1 The appearance of the decorative coating shall be smooth, beautiful and uniform in color. The color lines of the product layers shall be neat and clear. 5.6.2 The protective coating of the product shall be uniform, without sagging, flaking, whitening, obvious wrinkles, orange peel, etc. In addition to the above defects, the decorative coating shall not have obvious scars and scratches. 6 Performance test
6.1 Coating performance test specimens shall be in accordance with the provisions of B1727, 1 Coating performance test requirements are shown in Table 1. 6.3 Coating performance control Batch test of coatings entering the factory. , Inspection rules
Coating light 1. times, after the inspection department under the condition of sufficient light to receive 5.6.1, 5.6.2 light inspection, after the inspection is qualified, the town and the words "installation" are removed.
* Chongqing installation safety, health technology and environmental protection 8! 1. The safety and sanitation of the process shall be in accordance with the relevant national safety and sanitation regulations: 8.2 The safety level of installation operation shall be implemented in accordance with GB654: 8.3 The sanitation control of installation operation shall be implemented in accordance with the relevant national sanitation regulations S.4 The emission of harmful substances shall be implemented in accordance with the relevant national non-release standards: Comprehensive wrinkle resistance
Weather resistance
Heat resistance
Salt resistance
Water resistance
Add layer and try it
According to 131764
According to GB 1730
GT1720
According to GB:T 1732
G/T1731
According to GaT9276
According to GBT174n
JB/T9062—1999
Performance requirements
According to G/[1727—1992
The thickness of the product should reach the level of grade 2 or above
Observe with a magnifying glass, and the product should be wrinkled and free of reticulation, shape change, etc.
Gloss loss rate A: 56%-60%| |tt||According to H17% and other evaluation standards, the required pressure is good ±1℃, the relative accuracy is
94%-98% dyeing, the water resistance is determined in GB71763, 3% hydrogenation rate
GB/T1733
According to GTT35
According to the product standard requirements, within an inch, there is no falling off, wrinkling, blistering, keying, empty color and loss of gloss across the layer, which meets the requirements of the production standard
Buy light, blistering, peeling, rust and other phenomena and restore the single pressure direction , in line with the product standard requirements for the road
product standard specified ratio, in a specified time, the washing sample is cooled to a temperature of 251 ℃, without dense layer, separation, most moist, discoloration phenomenon or product standard requirements of the government inspection
A1 Rust and other provisions
JB/T9062--1900
A
(Appendix to the standard)
Grade requirements for steel surface processing before coating A1.1 Grade A: The surface of the steel is completely oxidized and covered with or only a few rust marks: 1.2 Grade B: Part of the carburized film on the surface of the steel has fallen off , there is a certain amount of rust. 41.3C grade: all the oxide film on the surface of the steel has peeled off, and a large amount of rust has occurred, but no pitting corrosion has been found after monthly testing. A1.4D grade: all the oxide film on the surface of the steel has fallen off, and there is a considerable amount of visual pitting corrosion. A2 Manual rust removal quality grade
Manual rust removal (the grade is divided into two levels. Before treatment, the steel surface should be free of dust and oil, and thick rust should be removed. 42.1 Grade: The steel surface should have a continuous golden luster. 2.2 Grade: The steel surface should have an obvious metallic luster. A3 Mechanical rust quality grade
Mechanical rust removal is divided into four levels. Before treatment, the surface of the material should be free of dust and oil, and thick rust should be removed. A3.1 Grade 4: Remove loose oxide film, iron castings, and dirt. A3.2 Grade 3: The steel surface is slightly colored.
A3.3 Level 2: The steel surface has slight dot or strip rolling marks. A3.4 Level 1: The surface of the pin should have uniform gold reduction.T 1732
G/T1731
According to GaT9276
According to GBT174n
JB/T9062—1999
Performance requirements
According to G/[1727—1992
The thickness of the product should reach the level of grade 2 or above. The product should be observed with a magnifying glass. The wrinkle effect should be better after the product is bent. The product should be pasted with 4 times the effect. There should be no net pattern, shape teaching, etc. The gloss loss rate A: 56%-60%
According to H17%, etc., the wear and tear should be good. In the need of good pressure ±1℃, relative accuracy
94%-98% dyeing
add water resistance in GB71763
regulation, 3% hydrogenation rate
according to GB/T1733
according to GTT35
according to the product standard, within the specified time, the washing sample will be cooled to a temperature of 25℃, without any tightness, blistering, peeling, rusting, etc. Layer, detachment, most moist, discoloration phenomenon or product standard regulations inspection
A1Rust grade regulations
JB/T9062--1900
Record A
(Appendix to the standard)
Grade regulations for steel surface processing before coatingA1.1A grade: The surface of the steel is completely covered with oxidized steel or with only a few rust marks:1.2B grade: Part of the oxidized film on the surface of the steel has fallen off, and there is a certain amount of rust.41.3C grade: All the oxide film on the surface of the steel has fallen off, and there is a lot of rust, but no pitting corrosion can be found by monthly measurement.A1.4D grade: All the oxidized film on the surface of the steel has fallen off, and there is a lot of visual pitting corrosion.A2Manual Rust removal quality level
The rust removal quality of the machine is divided into two levels. Before treatment, the dust and oil on the steel surface should be removed, and the thick rust should be removed. 42.1 Level 2: The steel surface should have a continuous metallic luster. 2.2 Level 3: The steel surface should have a clear metallic luster. A3 Mechanical rust quality level
The rust removal quality of the machine is divided into four levels. Before treatment, the dust and oil on the steel surface should be removed, and the thick rust should be removed. A3.1 Level 4: Remove loose oxide film, iron castings, and dirt. A3.2 Level 3: The steel surface is slightly colored.
A3.3 Level 2: There are slight dot-shaped or strip-shaped rolling marks on the steel surface. A3.4 Level 1: The steel surface should have a uniform metallic luster.T 1732
G/T1731
According to GaT9276
According to GBT174n
JB/T9062—1999
Performance requirements
According to G/[1727—1992
The thickness of the product should reach the level of grade 2 or above. The product should be observed with a magnifying glass. The wrinkle effect should be better after the product is bent. The product should be pasted with 4 times the effect. There should be no net pattern, shape teaching, etc. The gloss loss rate A: 56%-60%
According to H17%, etc., the wear and tear should be good. In the need of good pressure ±1℃, relative accuracy
94%-98% dyeing
add water resistance in GB71763
regulation, 3% hydrogenation rate
according to GB/T1733
according to GTT35
according to the product standard, within the specified time, the washing sample will be cooled to a temperature of 25℃, without any tightness, blistering, peeling, rusting, etc. Layer, detachment, most moist, discoloration phenomenon or product standard regulations inspection
A1Rust grade regulations
JB/T9062--1900
Record A
(Appendix to the standard)
Grade regulations for steel surface processing before coatingA1.1A grade: The surface of the steel is completely covered with oxidized steel or with only a few rust marks:1.2B grade: Part of the oxidized film on the surface of the steel has fallen off, and there is a certain amount of rust.41.3C grade: All the oxide film on the surface of the steel has fallen off, and there is a lot of rust, but no pitting corrosion can be found by monthly measurement.A1.4D grade: All the oxidized film on the surface of the steel has fallen off, and there is a lot of visual pitting corrosion.A2Manual Rust removal quality level
The rust removal quality of the machine is divided into two levels. Before treatment, the dust and oil on the steel surface should be removed, and the thick rust should be removed. 42.1 Level: The steel surface should have a continuous metallic luster. 2.2 Level: The steel surface should have a clear metallic luster. A3 Mechanical rust quality level
The rust removal quality of the machine is divided into four levels. Before treatment, the dust and oil on the steel surface should be removed, and the thick rust should be removed. A3.1 Level 4: Remove loose oxide film, iron castings, and dirt. A3.2 Level 3: The steel surface is slightly colored.
A3.3 Level 2: There are slight dot-shaped or strip-shaped rolling marks on the steel surface. A3.4 Level 1: The steel surface should have a uniform metallic luster.
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