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Technical process of chrome plating overpassing hydraulic mechanical member

A kind of hydraulic machinery and technical technology, which is applied in the field of catalytic alloy plating solution and processing technology, can solve the problems of complicated procedures, low efficiency, heavy pollution, etc., and achieve the effect of improving the anti-wear cycle, improving corrosion resistance, and matching performance and durability

Inactive Publication Date: 2007-03-14
李天忠
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  • Summary
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AI Technical Summary

Problems solved by technology

However, with the rapid development of the field of hydraulic machinery manufacturing and repair, the inherent defects of hard chromium plating technology lagging behind are becoming more and more apparent. The harmful components and gases in the raw materials when plating parts are harmful to the on-site operators to varying degrees. Secondly, in the implementation process, the process is complicated, the efficiency is low, the harm caused by high energy consumption and heavy pollution is obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The catalytic alloy plating solution is prepared with pure water as the main medium and supplemented with other materials according to the prescribed process. This is achieved by weighing nickel sulfate, glycine, sodium hypophosphite, graphite fluoride, boric acid, sodium saccharin, and lead ions in proportion, and putting them into a container with a stirrer for stirring. be usable. When plating is required, heat the plating solution to 50-80°C, and determine the plating time according to the required thickness. The materials are: pure water: nickel sulfate: glycine: sodium hypophosphite: graphite fluoride: boric acid: sodium saccharin: lead ion: ammonia water: sodium hydroxide=90:3:2.5:0.35:0.6:3:0.3 :0.003:0.35:0.15.

[0012] Below, combined with examples of valve sleeves and valve stems of hydraulic components, the production and processing technology process steps are described in detail:

[0013] (1) Early pretreatment process: degreasing and derusting the hydr...

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Abstract

The present invention provides alloy plating solution and corresponding treating process for forming coating with high corrosion resistance, high hardness, high wear resistance and high erosion resistance. The present invention is used in hydraulic part production, and has the outstanding features of high plating speed, low material consumption, low power consumption and no pollution. The alloy plating solution is compounded through dissolving nickel sulfate, amino acetic acid, sodium hypophosphorite, graphite fluoride, boric acid, sodium saccharin, lead ion, ammonia water and sodium hydroxide in the weight ratio of 3 to 2.5 to 0.35 to 0.6 to 3 to 0.3 to 0.003 to 0.35 to 0.15 in pure water of 90 weight portions. During plating, the alloy plating solution is heated to 50-80 deg.c, and the plating time is determined based on thickness to be plated.

Description

(1) Technical field: [0001] The invention belongs to the field of manufacturing and repairing of hydraulic machinery, and relates to a catalytic alloy plating solution and a treatment technology for enhancing the functional performance of the surface of hydraulic parts. (two) background technology: [0002] In the domestic hydraulic machinery industry, there are many kinds of hydraulic components, which are widely distributed in the fields of automobile manufacturing, mining metallurgy, port transportation, petroleum, petrochemical, printing, textile machinery, etc. The surface strengthening technology of hydraulic parts generally adopts the treatment of traditional electroplating and hard chrome plating In order to achieve the effect of corrosion resistance, high hardness and wear resistance of product performance. However, with the rapid development of the field of hydraulic machinery manufacturing and repair, the inherent defects of hard chromium plating technology laggin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/31
Inventor 李天忠
Owner 李天忠
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