Some standard content:
Military Standard FL0180 of the Electronic Industry of the People's Republic of China
Published on 2002-01-31
Finishes for electronic equipment
Finishes for electronic equipment SJ 20817—2002
2002-05-01 implementation
approved by the Ministry of Information Industry of the People's Republic of China,
referenced documents,
3 definitions,
general requirements
4.1 materials,
replacement of specified coating systems, processes or materials4.3
preparation before coating
galvanic series of metals
finishing selection
4.6 potential issues to be considered before selecting zinc or zinc-nickel alloy plating4.7
process requirements
5 detailed requirements
5.1 paint coating
coating systems for various electronic equipment.
5.3 inspection methods for coating systems
Appendix A paint coating marking (supplement)
basic composition.
representation method,
marking requirements.
A4 Marking example
Appendix B Number and name of paint film color standard (supplement) Bl
Number and name of paint film color standard in GB/T3181 B2
Number and name of camouflage paint film color standard in GJB798 Name of camouflage paint film color standard in GJB453 B3
Number and name of paint film color standard for coatings produced according to enterprise standards B4
Appendix C Coating appearance grade (supplement)
Appendix D Surface cleaning method (supplement)
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1 Scope
Electronic march military standard of the People's Republic of China Finishing of electronic equipment
Finishes for electronic equipnient 1.1 Subject content
This standard specifies the finishing requirements for ground, shipborne and airborne electronic equipment. 1.2 Scope of application
SJ 20817—2002
This standard applies to the selection of coating systems, coating materials and coating processes when designing ground, shipborne and airborne electronic equipment. 2 Reference documents
GB/T 1727—1992
GB/T 2705-1992
GB/T 3181—1995
GB/T 8923—1988
GB/T 9271—1988
GB/T 9800—1990||tt| |GB/T 11376—1997
GJB 367.1—1987
GJB385A*-- J996
GJB 4531988
GJB 798-1990
GJB 1590--1993
General preparation method of paint film
Classification, naming and model of paint products
Color standard of paint film
Rust grade and rust removal grade of steel surface before painting Standard test plate of paint and varnish
Chromate conversion film of electroplated zinc and electroplated cadmium layer Phosphate conversion film of metal
General technical conditions for military communication equipment Design and manufacturing requirements Specification of aliphatic polyurethane enamel and matching primer for aircraft skin Deformed camouflage atlas of tanks, automobiles and artillery
Color of camouflage paint film
Specification of epoxy silicone heat-resistant paint for aviation
GJBI592-1993
H61-83 Iron red and strontium yellow epoxy silicone heat-resistant primer (repackaging) GJB 1887-1994
GJB 2532—1995
HG/T 2239—[991
HG/T 2454—1993
Specification for solvent-based camouflage coatings for protection against visible light and near infrared General specification for electronic equipment on ships
H06-2 Iron red, zinc yellow, iron black epoxy ester primer Polyurethane varnish (repackaging)
HG/T2576—1994
Alkyd enamel of various colors
HG/T 2593--1994
HG/ 2594-—1994
HG/T 2597--1994
Acrylic varnish
Various colors of amino baking enamel
Epoxy-polyester powder coating
X06-1 Ethylene phosphating primer (repackaging)
HG/T 3347—1987
Q1467—1988 Technical conditions for pickling and chemical passivation of stainless steel Ministry of Information Industry of the People's Republic of China Issued on January 31, 2002 Implementation on May 1, 2002
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QJ468--1985 Technical conditions for chemical oxidation film on magnesium alloys QJ469--1988 Technical conditions for sulfuric acid anodizing film on aluminum and aluminum alloys QJ476—1988 Technical conditions for passivation film on copper and copper alloys QJ1375—1988 Technical conditions for chemical oxidation film on aluminum and aluminum alloys SJ/T10674—1995 General technical conditions for coating SJ20818--2002 Metal plating and chemical treatment of electronic equipment 3 Definitions
3. 1 Type I (exposed) surface type I (exposed) Type I surface refers to the surface that is exposed to the natural environment when the equipment is in operation or in motion, or the surface that is not exposed to the natural environment but can be directly affected by various climatic factors. Climatic factors include: extreme temperature, extreme humidity, rain, ice, snow, sleet, salt air, industrial air, direct sunlight, dust, wind and sand, etc. For example, the outer surface of the electronic equipment shelter belongs to the type I surface, and the inner surface of the electronic equipment shelter and the surface of the electronic equipment in the electronic equipment shelter belong to the type II surface. Note: Any coating system suitable for type I surface can meet the protection requirements of type I surface. 4 General requirements 4.1 Materials The coating material should be a qualified product that meets the requirements of relevant standards. 4.2 Substitution of specified coating systems, processes or materials If the contractor considers that other coating systems, processes or materials other than those specified in this standard are more suitable due to material supply, equipment processing capacity limitations, etc., these coating systems, processes or materials may only be used after receiving prior approval documents from the ordering party.
4.3 Preparation before coating
4.3.1 Chamfering
All external edges of metal parts to be coated should be rounded to facilitate the application of a coating of appropriate thickness and good adhesion. After the sharp edges are rounded, the metal parts should be plated and/or coated in accordance with the corrosion protection design requirements (see Tables 2 and 3). 4.3.2 Masking
When metal parts contain surfaces intended for electrical contact or heat conduction, these surfaces should be masked before painting or protected by other means during painting. Unless otherwise specified, plastics, rubber, PVC products and mechanical friction parts should also be masked or protected by other means. When using masking tape, select tape that will not adversely affect the coating, chemical treatment layer or equipment. 4.3.3 Pre-cleaning
Before surface treatment, pretreatment and organic coating, all surfaces should be pre-cleaned of dirt, grease, flux, sand, rust, scale and other contaminants to prevent them from affecting the adhesion of the surface treatment layer, pretreatment layer, primer layer or final coating. Cleaning should be carried out immediately before the next process begins, otherwise appropriate measures should be taken to ensure that the cleaned surface will not be contaminated before the next process is passed. In order to obtain the maximum bonding strength of the coating system, multiple cleaning methods may be required2
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4.3.3. 1 Sandblasting
SJ20817—2002
When parts need to be sandblasted, the surfaces that do not require sandblasting should be protected to avoid wear by sandblasting abrasives. Sandblasting should not be used to clean easily damaged surfaces. 4.3.3.2 Cleaning of welded parts
Sandblasting can be used to remove oxides generated during welding. After sandblasting, remove welding residues according to the welding process specifications.
4.3.3.3 Use of steel wool
Steel wool shall not be used under any circumstances to clean the surface of aluminum or magnesium alloys. Aluminum and magnesium alloys should be cleaned with steel grit abrasives.
4.4 Galvanic series of metals
The galvanic series of metals in seawater is shown in Table 1a, and additional notes on the galvanic series of metals in seawater are shown in Table 1b. The metals at the bottom of the galvanic series are more active (i.e., more negative in potential), and then arranged in order of decreasing activity to the most inert metal. In corrosion protection design, the galvanic series in Table 1a can be used as a guide for the selection of metal protective layers (see 4.5) and as a guide for the selection of materials when connecting metals.
4.5 Finishing selection
The "finishing" referred to in this standard includes surface cleaning, chemical treatment, plating and coating. When designing for corrosion protection, the designer should select the finishing according to the following requirements based on the type of surface to be protected (see Chapter 3) and the degree of chemical activity of the metal to be protected in a specific medium environment (usually seawater environment) (see Table 1a), combined with Tables 6 to 8. 4.5.1 Finishing of Type 1 surfaces
4.5.1.1 Visible surfaces
All visible Type 1 surfaces should be coated for protection (or) camouflage. Parts made of metals or alloys in Groups 6 to 18 of Table 1a and copper should be coated for protection purposes. Parts made of materials in Groups 1 to 5 of Table 1a and parts with hot-dip galvanizing should be coated for camouflage purposes. The only exceptions to these coating requirements are: a. Small parts of copper-based alloys (except screws, bolts, nuts and washers) such as hooks, eyelets, bead chains, etc. that are chemically blackened:
b. Small parts coated with double nickel plating for Type 1 surfaces or small parts coated with hot-dip galvanized: c. Components that are required to have sliding electrical contact surfaces and are coated with double nickel plating for Type I surfaces. 4.5.1.2 Invisible Surfaces
Invisible Type I surfaces shall be coated or plated. The following exceptions to this requirement are: a. Magnesium alloy parts must be coated:
b. Parts made of metals or alloys in Groups 1 to 5 of Table 1a (except copper) do not require further finishing: c. Screws, nuts, bolts and washers made of iron alloys and plated with zinc-nickel alloy or zinc passivated must be coated on all exposed surfaces after being installed in the component:
d. Machined or welded corrosion-resistant steel parts shall be passivated. 4.5.2 Finishing of Type I Surfaces
For parts made of metals or alloys in Groups 1 to 11 in Table 1a, no further finishing is required on the surface. For parts made of metals or alloys in Groups 12 to 18 in Table 1a (except magnesium and magnesium alloys), the finishing method may be coating, plating or chemical treatment; magnesium and magnesium alloy parts shall be coated. 4.6 Potential Issues to Consider Before Selecting Zinc or Zinc-Nickel Alloy Coating3
SJ20817--2002
4.6.1 The ambient temperature of zinc-plated, zinc-plated alloy parts or zinc-based alloy parts after chromate treatment shall not exceed 71°C. This restriction does not apply to the paint curing baking temperature during the coating process, which may exceed 71°C. For workpieces with working temperatures exceeding 71°C, an appropriate coating system should be selected to replace zinc or zinc-nickel alloy coatings. Heat-resistant paint or high-temperature resistant paint can also be selected when necessary. 4.6.2 Uncoated galvanized, zinc-nickel alloy and zinc-based alloy parts shall not be used in unventilated confined spaces containing harmful gases emitted by organic materials (such as phenolic insulating varnishes, uncured phenolic materials and self-priming alkyd enamels, etc.). 4.7 Process requirements
The surface to be coated shall be painted in accordance with the specified requirements to form a coating that is firmly attached and evenly coated. The coating shall not show bubbles, peeling, flaking, cracks or other obvious defects. When inspected in accordance with Appendix C (Supplement), the appearance of the coating shall meet the specified grade requirements. Failure to meet these requirements or the presence of any other serious defects specified in Table 10 shall be grounds for rejection and immediate corrective action. The presence of minor defects specified in Table 10 shall also be grounds for corrective action. If the coating has minor defects that are not visible after assembly, the purchaser has the right to decide whether such defects are acceptable. 5 Detailed requirements
5.1 Paint coating
The paint coating used on equipment or equipment parts shall comply with the requirements of Tables 2 and 3. The paint coating system to be used should be selected according to the type of the protected surface (Type I surface or Type II surface). Table 2 lists the basic paint coatings with coating codes starting with the letter P. The basic paint coating is a coating system involving the first to third coating processes in Table 2. For a complete coating system, the basic paint coating also requires the final paint coating in Table 3 [except for the fourth process (P215) of the coating process]. Table 3 uses the coating color name (or number) and the coating model (or name) and the coating appearance level (when the final coating is orange paint, the orange grain requirement should also be included) to indicate the final coating. Unless otherwise specified in the contract documents, the exterior color of various military communication equipment shall comply with the requirements of Article 1.20 of GJB367.1: the color of the chassis and cabinets of shipboard electronic equipment shall comply with the requirements of Article 3.10 of GJB2532; the outer surface of the communication equipment shell is usually painted with semi-gloss baking, the communication equipment used in the field shall be painted with matte paint, and the portable equipment shall be painted with glossy paint. See Appendix A (Supplement) for paint coating markings.
5.1.1 Basic paint coating (P)
The application process of the basic paint coating (P) shall comply with the requirements of Table 2. Unless otherwise specified, each primer in Table 2 shall be applied as a single coat, and the dry film thickness of the single coat shall comply with the provisions of Table 4. If Table 2 indicates that multiple coats of the same primer are required, the total dry film thickness of the primer shall be calculated by doubling the dry film thickness of the primer single coat. In order to improve the adhesion of the coating, the primer should be applied as soon as possible after the surface preparation, and the time between the surface preparation and the application of the primer shall not exceed 24 hours. The matching requirements of the primer layer and the topcoat layer or the intermediate coating in this standard shall comply with the provisions of Table 5.
5.1.2 Finishing paint coating
The finishing paint coating (the fourth coat in the coating process) shall comply with the requirements of Table 3. The finishing paint coating is usually applied 24 hours after the primer is cured. For some fast-drying epoxy primers, the primer may not require a long T-drying time of 24 hours before the topcoat is applied. In order to compensate for the loss of bonding strength of the topcoat, it may be necessary to shorten the primer drying time or lightly sand the primer. If the design specifies that the parts will only be coated with a basic paint coat (the first to third process in Table 2), then all exposed surfaces of the parts should be coated with a finishing coat (see Table 3) after the parts are installed or assembled. If the parts have been coated with a complete coat of paint (the first to fourth processes in Tables 2 and 3), the assembled parts should be modified so that a continuous coating is formed at the interface (this requirement does not apply to small gaps between mating parts, filled joints, or where there are moving parts such as hinges, pins, etc.). The color of the paint film formed by the touch-up paint should be very close to the color of the paint film on the adjacent surface. 4
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5.1.3 Selection of Finish Paint Coatings
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5.1.3.1 Bake-on and Epoxy Coatings—Bake-on or epoxy coatings should be used to coat metal parts. In any case, assemblies containing plastic parts shall not be baked at temperatures above 120°C. 5.1.3.2 Air-drying Coatings—Air-drying enamels are used in the following situations: a. Retouching and field repairs: b. Coating of parts that are inconvenient to bake c. Where the baking temperature has an adverse effect on the properties of the coated parts; d. Coating of wood, plastics or other materials that may be damaged at the specified baking temperature. 5.1.3.3 Heat-Resistant Parts—For parts with a service temperature exceeding 204°C, appropriate heat-resistant or high-temperature coatings should be selected from Table 3. 5.2 Coating systems for various electronic equipment
The coating systems for various parts of ground, shipborne and airborne electronic equipment are shown in Table 6, Table 7 and Table 8. When the coating systems in the above tables cannot meet the design requirements, the designer may select other applicable coating systems after approval by the ordering party. 5.3 Inspection methods for coating systems
5.3.1 Inspection responsibilities
Unless otherwise specified in the contract or order, the contractor shall be responsible for all inspections specified in the inspection standard. With the approval of the ordering party, the contractor may use its own equipment and instruments or those of other units to conduct such inspections. When the ordering party considers that such inspections must be conducted to ensure that the coating system of the equipment meets the specified requirements, the ordering party reserves the right to conduct such inspections. 5.3.1.1 Responsibility for conformity
All coating systems submitted for acceptance shall meet the relevant requirements in Chapters 4 and 5. The inspections specified in this standard shall become an integral part of the contractor's entire inspection system or quality program. 5.3.1.2 Inspection Certificate
The contractor shall have inspection certificates that all materials and processes used for part finishing meet the relevant requirements of this standard. All certificates shall be based on inspection data on materials, cleaning, surface treatment, pretreatment, film thickness, baking conditions, etc. The contractor shall provide all certification materials when required by the ordering party. 5.3.2 Inspection Items
The samples shall be inspected according to the items and methods specified in 5.3.3. 5.3.3 Inspection Methods
5. 3. 3. 1 Color
The specified paint film shall be inspected for color consistency by comparing it with the relevant color cards in GB/T3181, GJB798 and GJB453 or other color cards provided by the ordering party.
5.3.3.2 Paint film adhesion
a. Test sample
The test sample can be the coated product, product parts or similar scrap parts rejected due to reasons other than phosphating, material composition, and heat treatment. With the approval of the ordering party, the test sample can also be prepared with a standard test plate made of the same material as the product or product part to be tested. The size of the standard test plate should comply with the provisions of GBT9271. The coating system and coating process used for such test samples should be the same as those of the product or product part.
b. Test method
According to the contract, the paint film adhesion shall be tested by one or more of the following methods. Before the test, the test sample shall be adjusted in accordance with GB/T1727.
1) Scraping method
SJ20817—2002
When using a sharp-edged tool to scrape the typical (not obvious) part of the painted surface of the test sample, the scraped paint film should be in the form of debris, and the tested paint film should not flake off. In addition, it should be difficult to carve through the paint film to the substrate with a thumb nail. 2) Tape method
. In the tape method, a pressure-sensitive tape slightly longer than 5cm is firmly pressed on the plane or cylindrical surface of the test sample, and all bubbles under the tape are driven out. Leave the test sample for 10s to normalize the tape. Then hold the unbonded end of the tape tightly and quickly peel it off the test sample. During the peeling process, the tapes should be 180° back to back. Observe whether the paint film on the surface to be tested is sticky or not.
*Wet tape method: Tie a piece of cloth with a tape to the paint film to be tested, and then soak it with tap water or distilled water. The paint layer is soaked for at least 24 hours. After 24 hours, remove the wet cloth, wipe the paint film with dry, clean absorbent cotton yarn, and immediately apply a pressure-sensitive tape slightly longer than 5cm to the paint film. Use finger pressure to firmly press the 5m long test section of the tape on the film to drive out all bubbles. Place the test sample at 105 to normalize the tape. Then quickly tear off the tape. Check whether there is any damage to the paint film on the test surface. Scratched tape method: Use a sharp-edged knife to scratch four 25mm long and 1.6-2.4mm apart, scratching through the paint film. Draw another four 25mm long and 1.6-2.4mm apart lines at 90° to the first set of lines, forming a pattern of nine squares. Firmly press a piece of tape slightly larger than the engraved area on the engraved pattern to drive out all bubbles. Leave the test sample for at least 10 seconds. Hold the unadhered end of the tape with your hand and quickly peel the tape off the test film. During the peeling process, the tapes should be 180° back to back. Observe whether the paint film is damaged. Note: The width of the tape used for the above test should be 2.5cm and the peel strength should be at least 502g/cm. c. Qualification criteria
1) Scraping method
Can pass the tests in 5.3, 3, 2 6.1). 2) Tape method
·Dry tape method--After the tape is torn off, the test film is not damaged (except for the paint film particles of the flying paint layer that are stuck off). Wet tape method--After the tape is torn off one by one, the test film is not damaged (except for the paint film particles of the flying paint layer that are stuck off). ● Scratch tape method: After the tape is removed, the number of squares of the topcoat, primer, or pre-treatment-primer layer that is removed is less than two.
d Post-inspection treatment of test samples
Test samples that pass the inspection can be delivered according to the contract after the damaged parts of the paint film are repaired to the satisfaction of the purchaser's representative. Test samples with unqualified paint film adhesion can be sent for inspection again after re-coating. 5.3.3.3 Thickness
In addition to the methods included in the relevant paint standards, any other methods acceptable to the purchaser may be used to determine the thickness of the paint film. The dry film thickness of the paint should be measured at several different locations on each test sample. 5.3.3.4 Surface condition
The paint film should be visually inspected to determine whether there are any defects listed in Table 10. 5.3.3.5 Camouflage properties
When necessary, the camouflage properties of the TG04-80 camouflage paint film in Table 3 shall be tested in a military-approved laboratory in accordance with the relevant paint standards. Allow to use separate inspection samples 6
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Gold weir category
Pure gold and gold-plated, gold-plated platinum alloy, refined aluminum
Silver-plated + silver-plated on saws, graphite
Pure silver or silver-plated, high silver alloy
Table la
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Electrochemical series of metals in seawater
Pure nickel or nickel-plated, monel alloy, high nickel-copper alloy, titanium
Pure steel or copper-plated, low-zinc yellow steel or low-tin blue steel, silver solder, national silver, high copper-nickel alloy, nickel-ming alloy, austenitic corrosion-resistant sodium
Industrial yellow and industrial blue steel
High zinc tribute copper and high tin bronze, naval brass, four-six brass
18% chromium corrosion-resistant steel
Chrome-plated, tin-plated, 12% chromium brain-resistant steel
Tinplate, lead-tin-plated thin steel sheet, tin-lead solder, pure lead or vanadium-plated, commercial alloy
2000 series deformed aluminum alloy
Wrought iron, gray cast iron or malleable cast iron, ordinary carbon steel and low alloy steel, industrial blunt iron| |tt||Deformed aluminum alloy (except 2000 series), silicon type 14
Cast aluminum alloy
Cast aluminum alloy (except silicon type), chromate passivation
Hot-dip galvanized steel sheet, galvanized pliers
Forged zinc, die-cast zinc-based alloy, electrogalvanized 18 Cast or forged magnesium and magnesium-based alloy
Anode index
Note: \○" indicates the metal with the smallest anode index in the compatible electrochemical couple series. "" indicates the anode metal, and the leading indicates the anode direction. Q
Compatible electrochemical code
(seek for notes)
Metal category
Pure gold and gold plating, gold-platinum alloy, fine platinum
Silver plating + plating on steel, graphite
Pure silver or silver plating, high silver alloy
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Golden Eagle's Galvanic Sequence in SeawaterAdditional NotesEMF(V)
Pure nickel or nickel-plated, monel alloy, high nickel-copper alloy, titanium
Pure copper or copper-plated, low-zinc brass or low-tin blue pot, silver solder, German silver, commercial copper-nickel alloy, nickel-chromium alloy. Austenitic corrosion-resistant steel
Industrial brass and industrial blue
High zinc brass and broken bronze, naval brass, four-six brass
Additional Notes
, high silver alloy: such as AgCu5, AgCu7.5 used as electrical contact materials and AgCu7.5 used as brazing material.
Monel alloy, a nickel-based alloy containing 67% to 69% nickel, 28% copper, 1.5% to 2.5% iron and 1% to 2% Manganese such as Ncu28-2.5-1.5 (Monel 400).
High nickel-copper alloy: such as BMn40-1.5 Manganese white copper is also called Constantan and Ni70Cuz8.
■ Low zinc brass: red brass containing 5% zinc. Low tin bronze: a low-content back copper containing 8% to 10% steel, 2% to 4% zinc and 83%.
German silver: a copper-nickel-zinc alloy, belonging to zinc white copper. Contains 10~30% nickel, 50~60% copper, and the balance is zinc,
, a high copper-nickel alloy; a binary alloy composed of copper and nickel is called ordinary white copper, and the one with a high content of copper belongs to commercial copper-alloy, such as R0.6, B5, B16. B19, B30 copper: the United States UNS No. C96200 steel-nickel gold (containing 87.5% copper and 10.0% nickel) and UNS No. C96400 copper-nickel alloy (containing 67.0% copper and 30.0% nickel) are also high copper-nickel alloys. *Silver-chromium alloy: for example, Inconel 6001 (76% nickel: 15.5% chromium, 8% iron) and Inconel 601 (60.5% nickel, 23% chromium, 14% iron). Austenitic corrosion resistant steel: for example, OCr17Ni14Mo2, O0Cr19Ni10, O0Cr19Ni11-OC-17Ni12M02. OCr18Nig, OCr18Ni10Ti. OCr18NilITi, OCr18NiINb.
OCr19Ni9, 1Cr18Ni. ICrI8Ni9TiThis group of metals also includes: Nan copper, phosphorus copper silicon copper, lead steel manganese bronze, tin zinc bronze (gun metal), acid-resistant bronze, sea car blue, valve bronze, etc.
Industrial brass: yellow steel containing 10% zinc.
, T industry re-copper: blue saw containing 10% tin.
Commercial zinc brass: a complex phase yellow containing 39% zinc, 1.4% iron, 1% tin and 0.1% manganese,
High bronze: blue containing 20%~~25% tin, the balance is copper. Naval brass: a special brass containing 71% copper, 28% zinc and [% tin.
Four-six brass: A special yellow containing 60% copper and 40% zinc, -TiKAONiKAca
Gold category
18% chromium corrosion-resistant steel
Chrome plating, pot plating, 12% chromium corrosion-resistant steel
Chain tin sheet, lead-plated saw steel sheet, tin-lead solder
Pure lead or lead-plated, high-lead alloy
2000 series deformed lead alloy||t t||Wrought iron, grey cast iron or malleable cast iron, carbon and low alloy steel, industrial blunt ironwww.bzxz.net
Deformed lead alloys (except 2000 series), chain cast aluminum alloys
Cast aluminum alloys (except silicon type), cadmium + chromate passivated
hot-dip galvanized steel sheet, galvanized steel
wrought zinc, cast zinc-based alloys, electroplated zinc
wrought or wrought magnesium and magnesium-based alloys
SJ 20817-—2002
Table 16 (continued)
EMF(V)
.-0.55
Additional notes
18% chromium type corrosion-resistant steel: for example ICr17 (ferrite), 7Cr17 (martensite), 8Cr17 (martensite) 9Cr18 (martensite) 9Cr18Mo (martensite), 9Cr18MoV (martensite), 11Cr17 (martensite) 12% chromium Type resistant steel: such as 0Cr13AI (ferrite), 1Cr12 (martensite), 1Cr3 (martensite), 2Cr13 (martensite), etc., High lead alloy: such as PhSb0.5, PbSb2, PbSb4, PbSb6, PbSb8 and other lead alloys
2000 series deformed aluminum alloy: such as 2014 aluminum alloy (LD10) 2024 aluminum alloy (LY12), 2017 aluminum alloy (LY1I). Deformed aluminum alloy (except 2000 series): such as 1100 (15-1), 3003 (LF21), G061 (1D30), 6063 (LD31), 5052 (LF2). 7075.
Silicon-type cast aluminum alloys: such as ZLD10~ZLD111, ZI.D115 and ZLD116.
Cast aluminum alloys (except silicon series): such as AI-Cu series ZLD20I, ZI.D202 and ZLD203.
This group of metals also includes zinc-nickel-gold (10% nickel)-chromate passivation. Coating
P2286)
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I or Ⅱ
1 or Ⅱ
1 or I1
1 or Ⅱ
『or Ⅱ
1 or Ⅱ
First step
Surface cleaning 1)
According to Appendix D
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According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
SJ 208172002
2Basic paint coating (P)
Coating process
Second step
Surface treatment
Pretreatment
For ferroalloys other than corrosion-resistant steel
GB/T11376: Ct·Znph
GB/T11376: Ct · Znph
HG/T 3347: X06-!
GB/T11376: Ct·Znph
GB/T11376: Ct - Feph
HG/T 3347: X06-1
HG/T 3347: X06-1
Epoxy zinc-rich primer (split packing)
GB/T11376: Ct -Znph
HG/T 3347: X06-1
Red epoxy benzamide
Primer 2)
Iron red epoxy polyamide
Primer 2
Epoxy zinc-rich primer (divided
Iron red epoxy polyamide primer
For the inner surface of iron pipe
The third step
Iron red epoxy polyamide primer
HG/T2239:H06-2Iron red
HG/T2239:1H06-2Iron red 2)
HG/T2239:H06-2 Iron red 2)
HG/T 2239:H06-2 Iron red 2)
Iron red epoxy polyamide primer
HG/T 2239:H06-2 Iron red
Iron red epoxy polyamide primer
Epoxy zinc primer (repackaging)3)
HG/T 2239:H06-2 Iron red
Epoxy polyamine enamel (repackaging)
Epoxy polyamide enamel (repackaging))
Epoxy micaceous iron anti-rust paint 10
Cyclic amide enamel (repackaging)
GJH 1592: H61-83
After the painting, dripping and drying process, apply a layer of I[06-2 Iron red primer (HG/T2239) + final T film thickness is at least 0.025mm, usually this is the final coating. For corrosion-resistant steel, nickel-based alloys, and cadmium-based alloys HG/T 3347: X06-1
HG/T 3347: X06-1
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GJB385A: H06-10121141
HG/T2239: H06-2 Zinc Yellow
(JR385A: H06-101ZH4)5. Lead alloys such as PbSb2, PbSb4, PbSb6, and PbSb8
2000 series deformed aluminum alloys: for example, 2014 aluminum alloy (LD10), 2024 aluminum alloy (LY12), and 2017 aluminum alloy (LY1I). Deformed aluminum alloys (except 2000 series): for example, 1100 (15-1), 3003 (LF21), G061 (1D30), 6063 (LD31), 5052 (LF2). 7075.
Silicon-type cast aluminum alloys: such as ZLD10~ZLD111, ZI.D115, and ZLD116.
Cast aluminum alloys (except silicon-based): such as ZLD20I, ZI.D202, and ZLD203 of the AI-Cu system.
Metals in this group also include zinc nickel and gold (10% nickel)-chromate passivation. Coating
P2286)
『or[
I or Ⅱ
1 or Ⅱ
1 or I1
1 or Ⅱ
『or Ⅱ
1 or Ⅱ
First step
Surface cleaning 1)
According to Appendix D
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According to Appendix D
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SJ 208172002
2Basic paint coating (P)
Coating process
Second step
Surface treatment
Pretreatment
For ferroalloys other than corrosion-resistant steel
GB/T11376: Ct·Znph
GB/T11376: Ct · Znph
HG/T 3347: X06-!
GB/T11376: Ct·Znph
GB/T11376: Ct - Feph
HG/T 3347: X06-1
HG/T 3347: X06-1
Epoxy zinc-rich primer (split packing)
GB/T11376: Ct -Znph
HG/T 3347: X06-1
Red epoxy benzamide
Primer 2)
Iron red epoxy polyamide
Primer 2
Epoxy zinc-rich primer (divided
Iron red epoxy polyamide primer
For the inner surface of iron pipe
The third step
Iron red epoxy polyamide primer
HG/T2239:H06-2Iron red
HG/T2239:1H06-2Iron red 2)
HG/T2239:H06-2 Iron red 2)
HG/T 2239:H06-2 Iron red 2)
Iron red epoxy polyamide primer
HG/T 2239:H06-2 Iron red
Iron red epoxy polyamide primer
Epoxy zinc primer (repackaging)3)
HG/T 2239:H06-2 Iron red
Epoxy polyamine enamel (repackaging)
Epoxy polyamide enamel (repackaging))
Epoxy micaceous iron anti-rust paint 10
Cyclic amide enamel (repackaging)
GJH 1592: H61-83
After the painting, dripping and drying process, apply a layer of I[06-2 Iron red primer (HG/T2239) + final T film thickness is at least 0.025mm, usually this is the final coating. For corrosion-resistant steel, nickel-based alloys, and cadmium-based alloys HG/T 3347: X06-1
HG/T 3347: X06-1
-TiKAoNiKAca
GJB385A: H06-10121141
HG/T2239: H06-2 Zinc Yellow
(JR385A: H06-101ZH4)5. Lead alloys such as PbSb2, PbSb4, PbSb6, and PbSb8
2000 series deformed aluminum alloys: for example, 2014 aluminum alloy (LD10), 2024 aluminum alloy (LY12), and 2017 aluminum alloy (LY1I). Deformed aluminum alloys (except 2000 series): for example, 1100 (15-1), 3003 (LF21), G061 (1D30), 6063 (LD31), 5052 (LF2). 7075.
Silicon-type cast aluminum alloys: such as ZLD10~ZLD111, ZI.D115, and ZLD116.
Cast aluminum alloys (except silicon-based): such as ZLD20I, ZI.D202, and ZLD203 of the AI-Cu system.
Metals in this group also include zinc nickel and gold (10% nickel)-chromate passivation. Coating
P2286)
『or[
I or Ⅱ
1 or Ⅱ
1 or I1
1 or Ⅱ
『or Ⅱ
1 or Ⅱ
First step
Surface cleaning 1)
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
According to Appendix D
SJ 208172002
2Basic paint coating (P)
Coating process
Second step
Surface treatment
Pretreatment
For ferroalloys other than corrosion-resistant steel
GB/T11376: Ct·Znph
GB/T11376: Ct · Znph
HG/T 3347: X06-!
GB/T11376: Ct·Znph
GB/T11376: Ct - Feph
HG/T 3347: X06-1
HG/T 3347: X06-1
Epoxy zinc-rich primer (split packing)
GB/T11376: Ct -Znph
HG/T 3347: X06-1
Red epoxy benzamide
Primer 2)
Iron red epoxy polyamide
Primer 2
Epoxy zinc-rich primer (divided
Iron red epoxy polyamide primer
For the inner surface of iron pipe
The third step
Iron red epoxy polyamide primer
HG/T2239:H06-2Iron red
HG/T2239:1H06-2Iron red 2)
HG/T2239:H06-2 Iron red 2)
HG/T 2239:H06-2 Iron red 2)
Iron red epoxy polyamide primer
HG/T 2239:H06-2 Iron red
Iron red epoxy polyamide primer
Epoxy zinc primer (repackaging)3)
HG/T 2239:H06-2 Iron red
Epoxy polyamine enamel (repackaging)
Epoxy polyamide enamel (repackaging))
Epoxy micaceous iron anti-rust paint 10
Cyclic amide enamel (repackaging)
GJH 1592: H61-83
After the painting, dripping and drying process, apply a layer of I[06-2 Iron red primer (HG/T2239) + final T film thickness is at least 0.025mm, usually this is the final coating. For corrosion-resistant steel, nickel-based alloys, and cadmium-based alloys HG/T 3347: X06-1
HG/T 3347: X06-1
-TiKAoNiKAca
GJB385A: H06-10121141
HG/T2239: H06-2 Zinc Yellow
(JR385A: H06-101ZH4)
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