This standard specifies the requirements for nickel electroplating for engineering use on ferrous and non-ferrous metals. This standard applies to nickel plating for engineering purposes and also applies to protective decorative nickel plating with a minimum thickness of more than 30um. This standard does not apply to nickel plating used mainly for decorative purposes and anti-decorative nickel plating with a minimum thickness of less than 30um. GB 12332-1990 Nickel electroplating for metal covering engineering GB12332-1990 Standard download decompression password: www.bzxz.net
This standard specifies the requirements for nickel electroplating for engineering use on ferrous and non-ferrous metals. This standard applies to nickel plating for engineering purposes and also applies to protective decorative nickel plating with a minimum thickness of more than 30um. This standard does not apply to nickel plating used mainly for decorative purposes and anti-decorative nickel plating with a minimum thickness of less than 30um.

UDC 669.248.058
National Standard of the People's Republic of China
GB1233290
Metallic coatings
Electroplated coatings of nickelforengineering purposes
Published on April 27, 1990
Implemented on December 1, 1990
Published on National Technical Supervision Week
National Standard of the People's Republic of China
Metallic coatings
Electroplated coatings of nickelforengineering purposes
1990-04-27
Implemented on December 1, 1990
Published on National Technical Supervision Week
National Standard of the People's Republic of China
Metallic coatings
Electroplated coatings of nickelforengineering purposes
Metallio enntings
Electroplated coatings of nickelforengineering purposes prpoey
This international standard is equivalent to: ISO4526154 nickel coating for high-end products - nickel coating for high-end products? 1. Content and scope of application
This standard specifies the requirements for nickel coating for industrial use on black gold crowns and colored treasures. GB12332-90
This standard is applicable to nickel coating for industrial use, and also to protective decorative coatings with a small sequence of thickness above 30m. This standard is not applicable to the subsequent coating of nickel coating for use in industrial applications and the protective coating with a small sequence of thickness below 30m for objects with a thickness below 30m. 2 Reference standards wwW.bzxz.Net
Metallic coatings for wall repair
GO11379
GB12609
Extension of deposited metals and related finishing procedures
GB3505
GB4340
3H5370
Methods for testing the hardness of metals
Methods for testing the thickness of metal layers
Methods for testing the strength of metal layers (electrodeposited layers and chemical deposited layers) on metal substrates (electrodeposited layers and chemical deposited layers) ||Methods for measuring the cross-sectional thickness of metal and oxide layers using microscope GB642
Rust and rust on metal layers Copper silver alloy electroplating room GB9797
3 Terminology
3.1 Main surface
refers to the surface on the workpiece that has been restored or is to be restored. The coating on this surface is important to the appearance and/or use of the workpiece. 3.2 Minimum local thickness
The minimum value of the high part thickness measured on the main surface of a workpiece, also known as the minimum thickness. 4 Sample
In order to check whether the nickel coating meets the requirements of Chapter 7 of this standard, the sample should be polished according to the provisions of GB12609. 5 The information provided by the purchaser to the supplier
, the standard number of this standard, is GB12332, b The type and specification of basic metals are used to develop its metallurgical acceptance. Details: In the case of sample duplication, sometimes it is difficult to slowly supply this case material. At this time, it is necessary to ensure that the quality of the disk layer is the most difficult. C, whether the electron microscope needs to be treated to relieve stress, whether the pressure should be introduced before the electric lock, and the example is the lamp spraying nine. National Technical Supervision Room 1990-04-27 approved 19912-01 before sale
GO12332.:90
Detailed description of the main and guest surfaces of the rods and the electric chains, 1. For the standard treatment, there are no special requirements or restrictions, such as the use of anger instead of acid treatment. Compare the requirements for corrosion.
The minimum thickness of the material, meter use room, is the total annual thickness of the electric sugar layer! See 7.3); if required, the maximum thickness shall be specified.
In particular, for repairs of damaged workpieces, these thicknesses refer to the thickness of the coating applied to the workpiece after all mechanical treatments (see 7.3)
The type of finish, i.e. dark, glossy, semi-bright, low-strength, etc.
The final surface finish of the coating, such as unfinished, machined or polished
The type and (or) number of defects in each piece, each plane or per square decimeter of the surface (see
If heat treatment is required after treatment,
Other special requirements, such as hardness, surface roughness and precision ratio (see 7.2), etc., are subject to treatment before treatment
6.1-Moving regulations
The supplier shall inspect the main surfaces of the workpiece to confirm whether there are any Obvious surface defects, pores, cracks and uneven coating, or any other defects that are detrimental to the quality of the product. All defects should be noted by the purchaser before work. 6.2 Heat treatment for stress relief
If specified, the workpiece should be stress-relieved before welding. The applicable treatment conditions are listed in Table 1. It can also be used without restriction! Table 1 Heat treatment records, such as appropriately increasing the temperature and shortening the time, but it should be agreed upon by both parties and 1 Heat treatment conditions for stress relief before welding
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R1 0:0
1 050-≤1 450
1 450) 80C
R2. 2-1 BGO
140-22D
Heat treatment
for at least 24
If stress relief is carried out after cold working, the treatment temperature should not exceed 220℃. For workpieces in the pre-heating zone, the stress relief treatment should be at least 5h in 1 hole ~ 15 minutes. However, if the internal heat of the base material is reduced, it can also be treated at a higher temperature for a shorter time.
Non-ferrous metals are usually not required to be subjected to stress relief heat treatment. 6.3 Shot peening 6.5.1 Shot peening strength Unless otherwise specified, the shot peening strength shall comply with the following requirements: When measured by the force method specified in Section C (Supplement), the height shall be at least 0.3 mm for steel with a tensile strength of 1.0 MPa or less and c.1 mm for steel with a tensile strength of 100 MPa or more. Note: For thin parts, in order to prevent deformation, a lower shot peening intensity must be adopted. However, this may not effectively prevent the reduction of strength if there is no other regulation. When spraying, the relevant parts will be sprayed to the full extent: 6.3.2 Colored gold mesh
The required shot peening intensity for colored gold mesh shall be determined by the purchaser. 2
7 Requirements for lazy coating
7.F Field
GB 1233290
For chain parts that have not undergone any processing after electroplating, the appearance of the main surface shall be subject to the requirements specified in the manufacturer's anti-plating record (special parts). There shall be no pitting, cracking, blistering, peeling and large crystals or any other effects on the final decoration and heat sinking. For the coating that is to be machine-finished, electric forgings are allowed to have slight surface cracks that can be eliminated by machine processing methods. If the surface is subjected to heat treatment or the laser treatment process, the product is considered to be of low quality. 2. Surface short-cut
If the maximum surface roughness value is specified, it can be accepted
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