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Cemented carbide steelwork surface electroless copper plating method

A cemented carbide steel, surface chemistry technology, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problems of limited application, poor surface wettability, difficult to use together, etc.

Inactive Publication Date: 2012-10-17
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, cemented carbide steel is mainly composed of high-hardness refractory metal carbide (such as WC, TiC) micron powder, with cobalt (Co), nickel (Ni) as binder, due to its surface wettability Poor, which limits its application in some fields
The hardness and wear resistance of ordinary steel cannot meet the requirements for use in some fields. Although cemented carbide steel meets the requirements for use, it is difficult to cooperate with other metal parts in some fields.

Method used

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  • Cemented carbide steelwork surface electroless copper plating method

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Embodiment Construction

[0017] See attached figure 1 , the following examples are provided.

[0018] A method for electroless copper plating on the surface of a hard alloy steel part is carried out in accordance with the following steps:

[0019] a. Use 30g / LNaOH, 20g / LNa 2 CO 3 , 1 to 2 drops of OP-10 emulsifier made of alkaline washing solution, degreasing and degreasing of hard alloy steel parts for 5 to 15 minutes;

[0020] b, and then use the weight percentage as H 2 SO 4 6.5%, HCL 8% prepared pickling activation solution, the degreasing and degreasing of hard alloy steel parts is activated for 10 minutes;

[0021] c. According to 5g CuSO 4 5H 2 O, 10g disodium edetate, 5g potassium sodium tartrate, 1L deionized water ratio to make an intermediate solution, and stir evenly, then take an appropriate amount (for example 1g) of potassium ferrocyanide, an appropriate amount of hydrogen peroxide (for example 0.2ml Promptly 4 drops), 10g sodium hydroxide, 10ml formaldehyde are put into interme...

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Abstract

The invention discloses a cemented carbide steelwork surface electroless copper plating method comprising a degreasing process which is an alkali wash process, an activating process which is a scouring activating process and a copper plating process which applies electroless copper plating to a copper plating bath. The invention has the advantages of simple and practicable method, lower cost, even copper plating layer, strong adhesion, and the like.

Description

technical field [0001] The invention relates to a method for electroless copper plating on the surface of hard alloy steel parts, which belongs to the surface treatment technology of metal materials. Background technique [0002] Cemented carbide steel has excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, especially its high hardness and wear resistance, and is widely used in knives, measuring tools, molds and mining tools, etc. field. However, cemented carbide steel is mainly composed of high-hardness refractory metal carbide (such as WC, TiC) micron powder, with cobalt (Co), nickel (Ni) as binder, due to its surface wettability poor, which limits its application in some fields. The hardness and wear resistance of ordinary steel can't meet the requirements of use in some fields. Although cemented carbide steel meets the requirements of use, it is difficult to cooperate with other metal parts...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/40C23C18/18
Inventor 蒋永锋杨华山包晔峰
Owner HOHAI UNIV CHANGZHOU