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Treatment process before plating environment-friendly copper alloy

A treatment process, copper alloy technology, applied in metal material coating process, liquid chemical plating, coating, etc., can solve the problems of heat source, high energy consumption, increase of product production cost, etc., and achieve the effect of avoiding over corrosion

Inactive Publication Date: 2010-01-06
RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corrosive acids and alkalis have severe corrosion on metals, and heat sources are required for use, which not only consumes high energy but also pollutes the environment
[0003] The State Environmental Protection Administration and the Quality Supervision Bureau have strict regulations on the use and waste disposal of these substances, which must be treated to meet the specified standards before they can be discharged, which will greatly increase the production cost of the product

Method used

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  • Treatment process before plating environment-friendly copper alloy
  • Treatment process before plating environment-friendly copper alloy

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Embodiment Construction

[0032] like figure 1 As shown, an environment-friendly copper alloy pre-plating process includes a degreasing process 1 and an etching process 2, wherein the degreasing process 1 is composed of water-based cleaning agent degreasing 11 and cold water rinsing 12, and the etching process 2 is composed of plant Composed of acid ultrasonic etching 21 and deionized water ultrasonic rinsing 22 . Specifically, it includes the following four steps:

[0033] (i) Water-based cleaning agent for degreasing

[0034] Degreasing liquid: water-based cleaning agent (commercially available), pH=8~10

[0035] Degreasing temperature: 0~35℃

[0036] Degreasing time: 20-30 minutes

[0037] The oil-removing water-based cleaning agent is composed of a variety of surfactants, anti-rust agents, oil-stain dispersants and co-solvents that are harmless to the human body and the environment.

[0038] The composition and function of water-based cleaning agent are shown in Table 1

[0039] Table 1

[0...

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Abstract

The invention discloses a treatment process before plating an environment-friendly copper alloy. The treatment process comprises the following four steps: (i) using a water-based cleaning agent to deoil; (ii) rinsing the copper alloy in cold water; (iii) ultrasonically immersing the copper alloy in phytic acid; and (iv) ultrasonically rinsing the copper alloy in deionized water. The invention adopts the phytic acid for the ultrasonic using treatment process before plating the copper alloy, not only can thoroughly remove an oxide film on the surface of a basal body of a plating article and activates the basal body, but also can avoid over eroding the basal body of the plating article, achieve the environmental-protection requirement in aspects of operation environment, sewage drain, and the like and greatly decrease the production cost.

Description

technical field [0001] The invention belongs to an electroplating and chemical plating process, in particular to an environment-friendly copper alloy pre-plating process for the pre-plating treatment of workpieces. Background technique [0002] The pretreatment of metal workpieces before electroplating and electroless plating is very important. The quality of the surface treatment of the workpiece base material directly affects the quality of the coating. At present, the workpiece pre-plating treatment process has many processes and long working hours, and uses solvent-based cleaning agents such as acetone, sodium hydroxide and hydrogen chloride, and corrosive acids and alkalis. Although solvent-based cleaning agents have a strong cleaning ability, they are flammable and volatile, and have strong irritation to the central nervous system of the human body. Long-term exposure can cause diseases such as neurasthenia and chapped skin. Corrosive acids and bases corrode metals se...

Claims

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Application Information

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IPC IPC(8): C25D5/34C23C18/18
Inventor 王淯赵凯胡春新寇益强李金树
Owner RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND
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