This standard specifies the requirements for black oxide films on iron and steel (including cast iron, wrought iron, carbon steel, low alloy steel and stainless steel). Black oxide films can be used to reduce friction between sliding or supporting surfaces, or for decoration, or to reduce light reflection. This film can be used wherever a black surface is required, whether or not it has been subjected to additional anti-corrosion treatment; even with additional anti-corrosion treatment, only very limited corrosion protection can be obtained under mild corrosion conditions. This standard does not specify requirements for the state, processing and surface roughness of the substrate before black oxidation. GB/T 15519-2002 Chemical conversion coating Specification and test methods for black oxide films on steel GB/T15519-2002 standard download decompression password: www.bzxz.net
This standard specifies the requirements for black oxide films on iron and steel (including cast iron, wrought iron, carbon steel, low alloy steel and stainless steel). Black oxide films can be used to reduce friction between sliding or supporting surfaces, or for decoration, or to reduce light reflection. This film can be used wherever a black surface is required, whether or not it has been treated with additional anti-corrosion treatment; even with additional anti-corrosion treatment, only very limited corrosion protection can be obtained under mildly corrosive conditions. This standard does not specify requirements for the state, processing and surface roughness of the substrate before black oxidation.

ICS 25.220 20
National Standard of the People's Republic of China
GB/T15519-2002
Replaces B/551
Chemical conversion coatings
Black oxide film on steel
Specifications and test methods
Chernical conversion coatingsRlack oxide coaling on iron and sleelSpeccification aad test meihods1S0 1:408:1999,M0D)
2002 04 16 Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
20021201 Implementation
1 Specification
Regulatory documents
3 Terms and definitions
1 Information that product manufacturers should provide
4.1 Necessary information
|2 Attachments
5 Steaming materials
Heat treatment of steel
6. 1 Overview
6.2 Baking treatment before color oxidation
Heat treatment of black oxide
Surface quality
7.2 Practical test
......
7.3 Quality test of stainless steel base body for resistance to medium and large cavitation 8 Samples
Lu Qiu A (Informative Appendix) Reading and steel construction treatment 1 Technical items
Scientific neutral table laboratory and manufacturing method
CB/T 15519--2002
CB/T15519-2002
This standard is modified to adopt 1S(1110R:1SS Standard for the test method of single conversion oxidation film on steel and iron) (English version) (19) 11408:1999, and the following changes are made to the Chinese standard that adopts the international standard; "This standard\ replaces\Appendix A of this international standard, 1 Typical treatment process of hydrogenation of steel with acid (with) hydrogenation. This standard replaces GB/T15519-1955 Chemical oxidation film of steel. Compared with GB/T15519995, the main changes are as follows: Modify the contents of heat treatment of steel before and after oxidation (5.2 and 7.1 of 1595 edition: Chapter 6 of this edition) 1 For black The color reduction of the coating is not required (8.1 of the 1995 edition: 7.1 of this edition); the continuous test of the hole is modified (8.3 of the 1999 edition and 3.2 of the new edition); the information is added (see 4.2); the content of the grass or test is added (see 7.2.2); the typical treatment process of steel and black oxidation is added (see Table A.1); the actual cold force method of the small surface reaction is added (see Appendix B. In addition to the packaging, the content of the storage and storage (Chapter 1U of 1SS5 level). Appendix A and Appendix 1 of this standard are the material requirements. This standard is issued by the China Machinery and Fuel Industry Federation. This standard belongs to the National Metal Products and Non-metallic Materials Standardization Technical Committee: This standard is drafted by: Wuhan Material Protection Research Institute. This standard was drafted by Changsha Car 1 Room Product Specification Institute, and the people who drafted this standard are: Zhang Luozhong and Chen Xiaoluan, who are responsible for the management of this standard, including classification, removal of standards, and pulse measurement. The version of this international standard is: -G1/T16h.u1935.
1 Scope
Chemical conversion film
Specification and test method for black oxide film on iron and steel (gas-bonded iron, wrought iron, carbon steel, low alloy steel and stainless steel), and the requirements for the development of black oxide film on iron and steel (gas-bonded iron, wrought iron, carbon steel, low alloy steel and stainless steel). The black oxide film can be used to reduce sliding or friction, or for decoration, or to reduce light reflection. This kind of film can be used for anti-corrosion treatment and can show good protection performance even under mild conditions after additional anti-corrosion treatment.
The wood standard has provisions on the state of the substrate before oxidation, processing and surface treatment requirements. 2 Normative referenced documents
The following documents are general terms The reference to this standard becomes the final clause of this standard. For any dated referenced document, all subsequent amendments (excluding the contents mentioned) or revisions do not apply to this standard. However, the parties to an agreement based on this standard are encouraged to study and apply the latest versions of these documents. For any dated referenced documents, the latest versions shall apply to this standard. G13/1025 Gas hydrogen erosion test Salt spray test (+1S(922) B/124 Definitions of metal and other organic barrier layers for thickness measurement General specifications (kl1) 2064)/10S Electrodeposition containing metals and other organic barrier layers for detailed description of the test method and related information CS))) Gold and other additive-free quadrant recording and drinking water treatment to reduce the risk of hydrogen embrittlement 1S) 958 Today and its oil-free five-layer cover steel for detailed low hydrogen embrittlement risk test after treatment 3 Terms and definitions || TT || 12 The following terms and definitions are applicable to this standard. 3- 1
Main surface giganticantsurfact
The surface of a workpiece and the surface of a certain layer on it, which is important for its performance and (or) appearance: The above-mentioned layers must meet all the requirements: 1 Information that the purchaser should provide to the supplier
4.1 Necessary information
Quality requirements According to this standard, when dealing with a slow-covered black oxidation case, the supplier should provide the following information:) The number of this standard;
Indicate the main surface of the workpiece, such as through paper or through coupons. When the standard product is to be supplied, it should be marked:) Basic dynamic properties and surface state W Chapter 5):) The products to be produced Method (Chapter 4.2) Appearance of the product: Generally, it is necessary to provide detailed information such as appropriate marking on the product (see 7.1! 4.2 Additional information may be appropriately provided as follows: GR/T15519-2002) It is necessary to inspect the surface properties of the product (see 15.1 Whether the porosity and continuity of the black oxide film need to be inspected 1.27! Additional information such as: oil, wax or film) and the requirements for the overall treatment after heat treatment d) What are the requirements for the original color before and after heat treatment (then the requirements are as follows:) Acid resistance test (see 7.): What are the requirements for the performance and its performance test: R! 1) Thick black aging strength requirements: 5) The surface roughness of the coating is the same as the original surface roughness of the substrate, because it does not forget the original oxidation resistance, 6) Heat treatment of steel 6.1 General description: It can be used for some kind of heat treatment to form a small four-phase or whole product, and it can be used as a whole product. Note: 1) High strength product 6.2 Treatment before black oxidation
Heat treatment before black oxidation (IS) S5R7: Heat treatment should be carried out at low speed with water or washing before the start of treatment.
5.3 Heat treatment after black oxidation
Heat treatment after black oxidation of glass sheets should be carried out according to S95: The surface of the glass should be heat treated at 93℃ and 220℃ for not less than 2 hours. .
(Requirements
7.1 Appearance and surface quality
No red spots, and the whole membrane room does not appear red-brown: the door can be used to attach a certificate before the anti-flammability treatment, use 1 clean IE4 core filter paper or other paper of the opposite quality to burn the part: no red or green marks are produced: the part is strengthened, damaged, bonded, or treated by other types of machines. It is allowed to have uneven frequency parts and exposure, 7. 2.2.2 Test for resistance to scorching heat || tt || 7.2.1 In case of any additional proof of resistance to scorching heat, the black oxide film on the surface of the test piece shall comply with the requirements of 7.2.3. 7.2.4. 5.5% aldehyde shall be added to the black oxide film surface in water or deionized water, and the temperature shall be lowered to about 3.2 °C on a flat surface of the black oxide film surface. After 8 minutes, the reaction shall occur. After 9 minutes, the surface shall be washed and the film shall be washed. Figure · ...The batch of products is judged as not meeting the requirements of the product quality standard. 2
Figure! Inferior membrane
Figure 2 Membrane between good and bad
GB/T15519—2002
Figure 3 High-quality membrane
GB:T15515-2002
Drinking and frequency types
Associated, combined agents, capital prohibition, limited testing
Total next time the horse is long stainless steel
Our country's inducement
Not support steel or
Fast. Deformation. Silicon question. Closure Appendix 4 (Informative Appendix) Treatment processes of iron and steel Table A.1 Typical treatment processes of iron and steel Processes and related chemical reagents Chemical: Sodium nitrate sodium nitrate Chemical: Chemicals with high efficiency and selectivity: Upper and lower limits Acidic chemical
surface acid
exploration group good/T
the optimal promotion point is
133--151
115~1:F
salt
F5---45
using a variety of test groups
, the pressure is not high
Table A.2 Different categories of stainless steel
Original category
Talk about the cost partner
| The original
can produce
cannot be lifted
can be lifted
lower rate
B.1 Neutral surface reaction
Time record B
(Informative Appendix)wwW.bzxz.Net
Neutral surface reaction, porosity and continuity test method GB/T15519-2002
The test should be carried out after drifting and baking but before coating. The following method uses phenol melt test paper: :) Prepare the phenol resistance test solution by adding 2 phenol resistance test solution to 10mL of anhydrous ethanol. Store in a dropper or dropper bottle. When testing, add 1 drop of test solution to the surface (concave contact area) and moisten the surface with natural chain inflammation resistance, then place the test paper on it. The phenolic acid filter must be tested (in accordance with the actual situation) with a pinkish color. It is considered that there is no residual color. B.2 The porosity and continuity of the oxide should be tested by the low-speed method or drip test. Ensure that each test is filtered with a fresh test plate with a mass fraction of 3 prepared by laboratory reagent copper acid.
a) Under the conditions of 15 (-20) °C, the sample is immersed in the test solution (in a glass or plastic container): after 10s, the sample is collected and rinsed with cold water, and the sample is dried with a filter paper.
? Drip, apply 3 drops of test solution to the surface to be tested, and after 3C, use a large drop of German to check the surface under standard correction force. The red spot or red new surface film has fine pores or the film layer is stretched quickly:
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