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Electroplating solution for barrel plating and battery steel case barrel plating method

A battery steel shell and electroplating solution technology, which is applied in jewelry and other fields, can solve the problems of low strength and poor corrosion resistance of battery steel shells, and achieve the effects of improving corrosion resistance, prolonging the storage period, and beautiful battery appearance

Active Publication Date: 2016-08-10
上海金杨金属表面处理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned deficiencies in the prior art and solve the defects of poor corrosion resistance and low strength of battery steel shells produced by the current nickel plating method, the invention discloses an electroplating solution for barrel plating and a barrel plating method for battery steel shells

Method used

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  • Electroplating solution for barrel plating and battery steel case barrel plating method
  • Electroplating solution for barrel plating and battery steel case barrel plating method
  • Electroplating solution for barrel plating and battery steel case barrel plating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A. Degreasing before plating:

[0015] i. Degreasing and degreasing:

[0016] Take the unplated steel shell used in the LR6 alkaline zinc-manganese battery and place it in a degreasing tank, pour it into a degreasing solution for washing. The degreasing solution shall be subject to immersion of the steel shell. The quality of each component of the degreasing solution The percentage concentrations are as follows: sodium hydroxide 5%, sodium silicate 2%, sodium carbonate 1%, sodium dodecyl sulfonate 2%, and the balance of tap water.

[0017] When washing, the temperature in the degreasing tank is 40°C, and the washing time is 20 minutes. After washing, it is cleaned with deionized water or tap water at a temperature of 40°C. The above washing-washing process is repeated twice.

[0018] ii Pickling activation:

[0019] The battery steel shell that has completed step i degreasing and degreasing is pickled with acid solution at room temperature for 1 minute. The acid solution is hyd...

Embodiment 2

[0028] A. Degreasing before plating:

[0029] i. Degreasing and degreasing:

[0030] The mass percentage concentration of each component of the degreasing liquid is as follows: sodium hydroxide 7%, sodium silicate 5%, sodium carbonate 5%, sodium dodecylbenzene sulfonate 3%, and the balance of tap water.

[0031] The temperature in the degreasing tank is 50°C, and the washing time is 30 minutes. After washing, it is cleaned with deionized water or tap water at a temperature of 50°C.

[0032] ii Pickling activation:

[0033] Pickling for 2 minutes, the acid solution is 25% hydrochloric acid by mass percentage.

[0034] B. Barrel plating:

[0035] Put the steel shell that has completed the degreasing treatment before step A into the barrel plating tank, pour the electroplating solution for barrel plating, and prepare the electroplating solution as follows:

[0036]

[0037] All the above components are dissolved in deionized water to prepare a solution with a total mass of 1000 g to obtain an...

Embodiment 3

[0040] A. Degreasing before plating:

[0041] i. Degreasing and degreasing:

[0042] The mass percentage concentration of each component of the degreasing liquid is as follows: sodium hydroxide 10%, sodium silicate 8%, sodium carbonate 10%, sodium lauryl sulfonate 5%, and the balance of tap water.

[0043] The temperature in the degreasing tank is 60°C, and the washing time is 40 minutes. After washing, it is cleaned with tap water at 60°C.

[0044] ii Pickling activation:

[0045] Pickling for 3 minutes, the acid solution is 45% by mass hydrochloric acid.

[0046] B. Barrel plating:

[0047] Put the steel shell that has completed the degreasing treatment before step A into the barrel plating tank, pour the electroplating solution for barrel plating, and prepare the electroplating solution as follows:

[0048]

[0049]

[0050] All the above components are dissolved in deionized water to prepare a solution with a total mass of 1000 g to obtain an electroplating solution for barrel plating....

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Abstract

The invention relates to a treatment process for a carrier used in a device for directly converting chemical energy into electric energy, in particular to an electroplating solution for barrel plating and a barrel plating method for battery steel shells. An electroplating solution for barrel plating, consisting of 80-120 or 200-350 parts of main salt, 30-100 parts of anode activator, 3-60 parts of buffer, 20-30 or 180-250 parts of complexing agent, 0.5-2.5 It consists of 1 part of stress reliever, 0.005-0.1 part of main brightener and 0.3-1.0 part of auxiliary agent dissolved in water. A battery steel shell barrel plating method, the battery steel shell is followed by three steps of degreasing, barrel plating and bleaching, during barrel plating, the pH value of the electroplating solution is between 4.0-4.6 or 6.5-8.5, and the temperature is 40-70 ℃, current density 0.2~3A / dm 2 , drum speed 4 ~ 12 rpm, barrel plating time 180 ~ 300 minutes. The coating of the invention has white and bright appearance, high brightness and strong corrosion resistance.

Description

Technical field [0001] The invention relates to a treatment process for a carrier used on a device for directly converting chemical energy into electric energy, in particular to an electroplating solution for barrel plating and a method for barrel plating of battery steel shells. Background technique [0002] At present, alkaline batteries are more and more widely used because of their high capacity, long service life, and less environmental pollution. Alkaline battery shells are generally stamped from steel. They are used as electrolyte containers and electrode terminals. The battery shells require strong corrosion resistance, good sealing, and excellent conductivity. Therefore, the battery steel shells are generally nickel-plated to improve Various performance indicators. The battery steel shell is a typical blind hole part, and many models are also deep hole parts. However, the requirements for the electroplating layer, such as the bonding degree of the plating layer and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/14C25D5/04C25D7/00
Inventor 柳依玲顾耀前
Owner 上海金杨金属表面处理有限公司