Assistant bag for promoting uniform dissolution of nickel anode in electroplating and using method of assistant bag

A technology of auxiliary bag and nickel anode, which is applied in the field of auxiliary bag to promote the uniform dissolution of nickel anode in electroplating, can solve problems such as influence, and achieve the effect of simple technology, wide application prospect and low cost

Active Publication Date: 2021-02-26
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the active sulfur generated in situ is distributed throughout the bath, which has a great impact on the electroplating layer and the bath.

Method used

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  • Assistant bag for promoting uniform dissolution of nickel anode in electroplating and using method of assistant bag
  • Assistant bag for promoting uniform dissolution of nickel anode in electroplating and using method of assistant bag
  • Assistant bag for promoting uniform dissolution of nickel anode in electroplating and using method of assistant bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The anode is a nickel corner, take 10g of modified sulfur particles GS1# and put it in a filter bag, and place 20 auxiliary bags containing modified sulfur in the middle of the nickel corner. Nickel angle 2kg specification 2cm×2cm×1cm.

Embodiment 2

[0038] The anode is a nickel plate. Take 50g of modified sulfur particles GS1# and put it in a long filter bag, and then wrap the auxiliary bag containing modified sulfur on the surface of the nickel plate. The surface area of ​​the nickel plate is 6dm 2 .

Embodiment 3

[0040] The anode is a nickel corner, take 10g of modified sulfur particles GS2# and put it in a filter bag, and place 20 auxiliary bags containing modified sulfur in the middle of the nickel corner. Nickel angle 2kg specification 2cm×2cm×1cm.

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Abstract

The invention relates to an assistant bag for promoting uniform dissolution of a nickel anode in electroplating and a using method of the assistant bag. The assistant bag comprises a permeable bag andmodified sulfur particles arranged in the permeable bag, wherein the particle sizes of the modified sulfur particles are 30-200 nm, the modified sulfur particles are prepared by grinding high-puritysulfur, a modifier which is 0.01%-10% of the mass of the sulfur and a ball milling medium which is 5-8 times of the mass of the sulfur on a ball mill under nitrogen protection, and the modifier is oneor more anionic surfactants containing sulfonic acid groups. Through use of the assistant bag, passivation of a nickel anode in Watt nickel electroplating can be effectively inhibited, surface dissolution is promoted to be uniform, formation of residues is remarkably reduced, and maintenance of a bath solution and the quality of a coating cannot be remarkably affected. The assistant bag is simplein using method and has a wide application prospect in the nickel electroplating industry.

Description

technical field [0001] The invention relates to the technical field of electroplating treatment, in particular to an auxiliary agent bag for promoting the uniform dissolution of nickel anode in electroplating and a use method thereof. Background technique [0002] Nickel electroplating commonly uses soluble nickel as the anode, which can supplement nickel ions and simplify solution control. The nickel anode material and its dissolution behavior have a crucial influence on the quality of the plated parts and the maintenance of the plating process. However, nickel is an easily passivated metal. In order to ensure the dissolution rate of nickel during electroplating in actual operation, the nickel anode is generally in the over-passivation zone. At this time, the anode dissolution is a process of cyclic and alternate passivation. After time the nickel anode is spongy and nickel residues are formed. [0003] In order to improve the dissolution rate of nickel, the usual methods...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/12
CPCC25D3/12Y02P10/20
Inventor 王春霞彭叔森吴光辉郑军福苏兰伍卢建波张四增石海明张峰瑞吕海波李化平
Owner JINCHUAN GROUP LIMITED
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