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Alloy steel electrosilvering product and preparation method thereof

A technology for alloy steel and electroplating silver, applied in the field of alloy steel electroplating silver products and their preparation, can solve problems such as poor high temperature bonding force, and achieve the effects of good structure compactness, corrosion prevention, and high temperature bonding force improvement.

Inactive Publication Date: 2018-01-23
河南航天精工制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a silver-plated alloy steel product, thereby solving the problem of poor high-temperature bonding force of existing products

Method used

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  • Alloy steel electrosilvering product and preparation method thereof
  • Alloy steel electrosilvering product and preparation method thereof
  • Alloy steel electrosilvering product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The silver-plated alloy steel product of this embodiment comprises an alloy steel substrate and a copper coating, a nickel coating and a silver coating sequentially electroplated on the alloy steel substrate from inside to outside, wherein the thickness of the copper coating is 2 μm, and the thickness of the nickel coating is 2 μm , The thickness of the silver plating layer is 6 μm.

[0027] The preparation method of the alloy steel electroplated silver product of the present embodiment comprises the following steps:

[0028] 1) Put the alloy steel substrate in the degreasing liquid, degrease at 70°C for 15 minutes, then perform hot water washing (hot water temperature is 75°C) and flowing cold water washing (cold water temperature is 25°C) in sequence to obtain degreasing parts ; The composition of degreasing liquid is: degreasing agent CK-SO 2 45g / L, the solvent is water;

[0029] 2) Place the degreasing part obtained in step 1) in the activation solution, activate ...

Embodiment 2

[0040] The silver-plated alloy steel product of Example 2 has the same structure as that of Example 1, and the thicknesses of the copper coating, the nickel coating and the silver coating are 1.5 μm, 2 μm, and 6 μm, respectively.

Embodiment 3

[0041] The silver-plated alloy steel product of Example 3 has the same structure as that of Example 1, and the thicknesses of the copper plating, nickel plating, and silver plating are 1.8 μm, 2 μm, and 7 μm, respectively.

[0042] The preparation methods of the silver-plated alloy steel products of Examples 2 and 3 are basically the same as those of Examples, and the process parameters of each step are listed in Table 1.

[0043] The preparation process parameter of the alloy steel electroplating silver product of table 1 embodiment 2 and embodiment 3

[0044]

[0045]

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Abstract

The invention relates to an alloy steel electrosilvering product and a preparation method thereof. The alloy steel electrosilvering product comprises an alloy steel base body, a copper coating, a nickel coating and a silver coating, wherein the copper coating, the nickel coating and the silver coating are sequentially electroplated on the alloy steel base body from inside to outside. According tothe alloy steel electrosilvering product, the copper coating is used as a base layer, the structure compactness of the copper coating is good, the base layer can be effectively prevented from rusting,and the binding force of the base layer is improved; and the nickel coating is used as a middle layer, nickel cannot form weak eutectic with copper and silver on an interface, the compactness of theoverall coatings can be improved through interdiffusion of nickel and copper and interdiffusion of nickel and silver, the internal stress of the coatings is reduced, and thus the high-temperature binding force of the alloy steel electrosilvering product is improved. A thermal shock test below 550 DEG C shows that the alloy steel electrosilvering product has excellent high-temperature binding forceand can meet the use requirements under high-temperature environments.

Description

technical field [0001] The invention belongs to the field of electroplating products of metal materials, and in particular relates to an alloy steel electroplating silver product and a preparation method thereof. Background technique [0002] Electroplated silver products have been widely used in the electronics industry, decorations, tableware and handicrafts and other fields. Metal materials can maintain good thermal conductivity, electrical conductivity, and welding performance after silver plating, and have good stability to organic acids and alkalis, and also greatly improve the appearance of the product. [0003] The patent with the authorized notification number CN104404580B discloses a method for improving the binding force of the stainless steel electroplated silver layer. The method is to degrease and activate the stainless steel pre-plated parts, and use the stainless steel pre-plated parts as the cathode and the nickel plate as the anode. Pre-plating with nickel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/12C25D3/40C25D3/12C25D3/46
Inventor 郭绕龙贾凯孙晓军李杰卢泰宇李召李国伟
Owner 河南航天精工制造有限公司
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