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Novel environment-friendly alloy catalytic liquid and preparation method thereof

A catalytic liquid and environmentally friendly technology, applied in the field of catalytic liquid, can solve the problems of slow plating speed, unstable quality, high cost, etc., and achieve the effects of good weldability, high wear resistance, and small friction coefficient

Inactive Publication Date: 2015-03-25
梅州市星泰环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing catalytic liquid process still has the problems of high cost, slow plating speed, unstable quality and pollution

Method used

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  • Novel environment-friendly alloy catalytic liquid and preparation method thereof
  • Novel environment-friendly alloy catalytic liquid and preparation method thereof
  • Novel environment-friendly alloy catalytic liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The preparation method of a kind of novel environment-friendly alloy catalytic liquid of the present invention comprises the following steps: (1) take each raw material according to the weight percentage of raw material, for subsequent use; (2) sequentially mix nickel sulfate, sodium hypophosphite, sodium citrate , Ethyl-hydroxypropionic acid, acetic acid, sodium acetate, hydrazine sulfate, sulfur powder and water are added to the container, and stirred evenly at room temperature to form a semi-finished mixed solution; (3) ammonia and sulfuric acid are added to the semi-finished mixed solution, and the pH value is adjusted to 4.5-5.2, stir evenly to form a catalytic solution.

[0023] Before plating, the plated parts must be pretreated to remove the oil stains and oxides on the surface, and then carry out water washing→acid cleaning activation→water washing→80~90℃alloy catalyst solution immersion treatment in sequence. The soaking time in the catalytic solution is 20-30...

experiment example

[0025] The catalytic solution was prepared according to the above formula and preparation method, and its corrosion rate was lower than that of Cr18Ni9 stainless steel through comparison tests of sulfuric acid, hydrochloric acid, caustic soda and brine. See the table below for details:

[0026] Table 1 Corrosion rate comparison table

[0027]

[0028] Catalytic solution was prepared according to the above formula and preparation method, five samples were electroplated with the conventional electroplating method, and then the corrosion test was carried out. The results are shown in the following table:

[0029] Table 2 Corrosion speed comparison table

[0030]

[0031] Prepare the catalytic solution according to the above formula and preparation method, and carry out catalytic electroplating on various materials. The hardness changes of various materials are as follows:

[0032] Table 3 hardness test table

[0033]

[0034] After being treated by this technology, th...

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Abstract

The invention discloses a novel environment-friendly alloy catalytic liquid and a preparation method thereof and belongs to the technical field of alloy catalytic liquid. The catalytic liquid is mainly prepared from the following raw materials in percentage by weight: 1 to 8 percent of nickel sulfate, 1 to 8 percent of sodium hypophosphite, 0.2 to 2 percent of sodium citrate, 0.2 to 2 percent of 2-hydracrylic acid, 0.5 to 3 percent of acetic acid, 0.5 to 5 percent of sodium acetate, 0.06 to 0.5 percent of hydrazine sulfate, 0.0001 to 0.0005 percent of sulfur flash powder, 2 to 12 percent of ammonia water, 0.5 to 3 percent of sulfuric acid and 55 to 90 percent of water. The method comprises the following steps: (1) weighing all raw materials; (2) sequentially and uniformly stirring all raw materials at normal temperature to obtain a semi-finished product of mixed liquid; (3) regulating the PH value to be 4.5-5.2 and uniformly stirring to obtain the catalytic liquid. The invention aims to provide the novel environment-friendly alloy catalytic liquid which is reasonable in formula, high in catalyzing speed, stable in quality and high in cyclic utilization rate; the novel environment-friendly alloy catalytic liquid is used for replacing electroplating.

Description

technical field [0001] The invention relates to a catalytic liquid, more specifically, to a novel environment-friendly alloy catalytic liquid. The invention also relates to a preparation method of the catalytic liquid. Background technique [0002] The traditional electroplating process needs to use direct current in production, which consumes a lot of energy, equipment investment and cost. Electroplating wastewater not only pollutes the ecological environment, but also endangers people's physical and mental health. Therefore, the catalytic liquid technology used to replace electroplating came into being. However, the existing catalytic liquid process still has the problems of high cost, slow plating speed, unstable quality and pollution. Contents of the invention [0003] The object of the present invention is to provide a novel environment-friendly alloy catalytic liquid with reasonable formula, fast catalytic speed, stable quality and high recycling rate in view of t...

Claims

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Application Information

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IPC IPC(8): C25D3/56
CPCC25D3/56
Inventor 沈广宗李江平杨钦廉吴清兰张英源罗新玲
Owner 梅州市星泰环保科技有限公司
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