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Alloy electroplating liquid

An alloy electroplating solution and raw material technology, applied in the field of alloy electroplating solution, can solve the problems of rough particles, slow plating speed, and inability to be practically applied, and achieve the effect of fine crystallization and cost reduction.

Inactive Publication Date: 2015-09-16
司徒建辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, alloy plating has a problem with solder wettability, so the reliability after brazing is low, and it cannot be practically used.
In addition, in the plating process, the cathode current efficiency is poor, the plating speed is slow, and the obtained plated particles are rough, and there are problems in appearance such as dullness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The alloy electroplating solution described in this embodiment 1 is composed of the following raw material components: 80 parts nickel sulfate, 10 parts ferrous sulfate, 15 parts stannous chloride, 10 parts ammonium molybdate, 30 parts sulfuric acid Potassium, 25 parts of iron chloride, 8 parts of aluminum chloride, 8 parts of ferrous hydroxide, 5 parts of calcium hydroxide, 6 parts of sodium citrate, 5 parts of oxalic acid, 5 parts of potassium hydrogen tartrate, 8 parts of sodium bicarbonate, 6 Parts of choline bitartrate, 150 parts of deionized water.

Embodiment 2

[0011] The alloy electroplating solution described in this embodiment 2 is composed of the following raw material components: 100 parts nickel sulfate, 20 parts ferrous sulfate, 20 parts stannous chloride, 20 parts ammonium molybdate, 35 parts sulfuric acid Potassium, 30 parts of iron chloride, 10 parts of aluminum chloride, 15 parts of ferrous hydroxide, 8 parts of calcium hydroxide, 8 parts of sodium citrate, 10 parts of oxalic acid, 8 parts of potassium hydrogen tartrate, 10 parts of sodium bicarbonate, 10 Parts of choline bitartrate, 200 parts of deionized water.

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PUM

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Abstract

The invention discloses an alloy electroplating liquid. The alloy electroplating liquid consists of the following raw material components in parts by weight: 80 to 100 parts of nickel sulfate, 10 to 20 parts of ferrous sulfate, 15 to 20 parts of stannous chloride, 10 to 20 parts of ammonium molybdate, 30 to 35 parts of potassium sulfate, 25 to 30 parts of iron chloride, 8 to 10 parts of aluminum chloride, 8 to 15 parts of ferrous hydroxide, 5 to 8 parts of calcium hydroxide, 6 to 8 parts of sodium citrate, 5 to 10 parts of oxalic acid, 5 to 8 parts of potassium bitartrate, 8 to 10 parts of sodium bicarbonate, 6 to 10 parts of choline bitartrate and 150 to 200 parts of deionized water. The alloy electroplating liquid can completely substitute an AG electroplating liquid, after a plated part has electroplating treatment of the alloy electroplating liquid, a decorative bright plating layer with exquisite and good crystallization can be obtained, and the electroplating cost by utilizing the AG precious metal electroplating liquid can be reduced.

Description

Technical field [0001] The invention relates to the technical field of electroplating solutions, in particular to an alloy electroplating solution. Background technique [0002] At present, the alloy electroplating layer has superior physical and chemical properties. Compared with the traditional nickel plating process, the nickel-iron alloy electroplating replaces part of the expensive metallic nickel with cheap pure iron, so that harmful iron impurities become the plating layer. Beneficial ingredients not only reduce the cost of electroplating, but also reduce the defects such as pinholes and brittleness of the coating. However, alloy electroplating has a problem with solder wettability, so the reliability after brazing is low and cannot be practically applied. In addition, in the plating process, the cathode current efficiency is poor, the plating speed is slow, the resulting plating particles are rough, and there are problems in appearance such as dullness. Summary of the i...

Claims

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Application Information

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IPC IPC(8): C25D3/56
Inventor 司徒建辉
Owner 司徒建辉
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