Methyl sulfonate tinning electrolyte and tinning method of steel strip or steel plate

A technology of methanesulfonate and stannous methanesulfonate, which is applied in the field of methanesulfonate tin plating electrolyte, to achieve the effects of inhibiting crystal growth, enhancing throwing ability, and reducing the degree of harm

Active Publication Date: 2011-08-24
张家港市凤凰科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the addition of rare earth salts in the methanesulfonate tin plating electrolyte

Method used

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  • Methyl sulfonate tinning electrolyte and tinning method of steel strip or steel plate
  • Methyl sulfonate tinning electrolyte and tinning method of steel strip or steel plate
  • Methyl sulfonate tinning electrolyte and tinning method of steel strip or steel plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, pre-clean and pickle the pre-plated sample (according to the "Ferrostan (Ferrostan)" method). The samples are reflowed, passivated, and the tin layer is oiled after treatment. Plating temperature 20°C, current density 6 A / dm 2 , the speed of the cathode conveyor belt is 3m / s. When preparing the electrolyte, clean the plating tank with tap water and deionized water respectively, then add 1 / 2 volume of deionized water, add methanesulfonic acid, stannous methanesulfonate, cerium sulfate, methanesulfonic acid, Hydroquinone, catechol, benzylidene acetone, glutaraldehyde, OP, sodium dodecylsulfonate; then, add deionized water to the specified volume, stir well and then electroplating. The formula of the electrolyte is as follows:

Embodiment 2

[0023] Plating temperature 25°C, current density 8A / dm 2 , the speed of the cathode conveyor belt is 3m / s, and others are the same as in Example 1. The formula of the electrolyte is as follows:

Embodiment 3

[0025] Plating temperature 30°C, current density 10A / dm 2 , the speed of the cathode conveyor belt is 3m / s, and others are the same as in Example 1. The formula of the electrolyte is as follows:

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Abstract

The invention discloses methyl sulfonate tinning electrolyte using cerium salt as an additive. The electrolyte comprises the following components: 30 to 120 g/L of stannous methyl sulfonate, 60 to 180 g/L of methylsulfonic acid, 1 to 10 g/L of cerium sulfate, 0.1 to 2 g/L of antioxidant, 5 to 10 g/L of brightening agent and 5 to 10 g/L of surfactant. The invention also discloses a method for tinning a steel strip or a steel plate by adopting the electrolyte. During plating, the cerium salt in the electrolyte lightens the harm degree of 'hydrogen brittleness', and plays roles of the antioxidant and the brightening agent. On the basis of adaptability to the environment, the electrolyte meets the requirements that the process is simple, the solution is stable, the maintenance is easy and the quality of a coating is high.

Description

technical field [0001] The invention relates to an electrolytic solution and an electroplating method for treating the surface of light metal materials, in particular to a methylsulfonate tin-plating electrolytic solution with cerium salt as an additive and the methylsulfonate tin-plating electrolytic solution The method of electroplating. Background technique [0002] At present, tinplate is a cold-rolled low-carbon thin steel plate or steel strip coated with pure tin on both sides. It combines the strength and formability of steel with the corrosion resistance, weldability and beauty of tin. It has the advantages of non-toxicity, good ductility and good corrosion resistance. Its surface is shiny and easy to color and print. Therefore, tinplate has long been used as the main packaging material in the food industry, and is widely used in industries such as medicine, light industry, automobiles and home appliances, and is one of the most popular steel products. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/32C25D7/06C25D5/36C25D5/48
Inventor 刘子利徐文龙王怀涛徐斌刘希琴
Owner 张家港市凤凰科技开发有限公司
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