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Technical process of chrome plating overpassing hydraulic mechanical member

A technology of components and valve sleeves, which is applied in the field of alloy plating solutions and technical treatment preparations for surface enhancement and performance, can solve the problems of low efficiency, complicated procedures, high energy consumption, etc., and achieve low production efficiency of finished products, long processing cycle, The effect of high corrosion resistance

Inactive Publication Date: 2009-03-11
李天忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the rapid development of the field of hydraulic machinery manufacturing and repair, problems related to surface strengthening technology need to be solved urgently. Harmful components and gases in the raw materials during the plating process will harm the on-site operators to varying degrees. Secondly, the hazards caused by the complicated procedures, low efficiency, high energy consumption and heavy pollution during the implementation process are obvious.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The alloy plating solution is prepared with pure water as the main medium supplemented by other materials. Weigh nickel sulfate, glycine, sodium hypophosphite, graphite fluoride, boric acid, sodium saccharin, lead ions, etc. in proportion, put them into a container with a stirrer for stirring, and use them after they are all dissolved. When plating is required, heat the plating solution to 50-80°C, and determine the plating time according to the required thickness. The materials therein 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.

[0017] Below, combined with examples of valve sleeves and valve stems of hydraulic components, the technical process and preparation method steps are described in detail:

[0018] (1) Early pretreatment process: first degrease and derust the valve sleeve and valve stem, then use mechanical ...

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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 an alloy plating solution and a technical treatment preparation method 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 many engineering fields such as automobile manufacturing, mining metallurgy, port loading and unloading, railway transportation, petroleum and petrochemical, paper printing, and textile machinery. The surface strengthening technology of hydraulic parts generally adopts the traditional electroplating and hard chrome plating treatment method 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, pr...

Claims

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Application Information

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