Super-hard ceramal chemical compound solution and plating method thereof

A technology of ceramic chemistry and superhard alloy, which is applied in the field of metal-ceramic alloys, can solve the problems of easy decomposition, easy falling off of the coating, poor stability, etc., and achieve the effects of stable performance of the plating solution, high plating speed, and improved service life

Inactive Publication Date: 2012-03-28
程绍鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the solution is used for four to five cycles, its stability becomes poor, it is easy to decompose, and the coating is easy to fall off.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A superhard alloy ceramic chemical composite liquid prepared from the following raw materials in parts by weight:

[0037] Main salt nickel sulfate 10g, reducing agent sodium hypophosphite 15g, complexing agent boric acid 15g, buffering agent sodium acetate 15g, cationic surfactant cetyltrimethylammonium bromide 0.03g, boron carbide 6.8g, 65°C Ionized water 1000mL.

[0038] A method for preparing and plating a superhard alloy ceramic chemical compound solution, comprising the steps of:

[0039] A. Boron carbide activation treatment: Soak boron carbide in phosphoric acid solution for 80 minutes, then add deionized water to dilute to pH 7, remove the surface liquid after precipitation, put the remaining solution in a metal container, place it under ultrasonic stirring and vibration After 10 minutes, use a 1500# filter to filter out impurities, adjust the pH to 5 with ammonia solution or sodium hydroxide solution, and make a boron carbide mixture, referred to as A solutio...

Embodiment 2

[0053] A superhard alloy ceramic chemical composite liquid, the synthetic liquid contains the following raw materials prepared in parts by weight:

[0054] Main salt nickel acetate 30g, reducing agent sodium borohydride 35g, complexing agent citric acid 20g, buffering agent anhydrous sodium sulfate 25g, cationic surfactant polyethyleneimine 0.08g, boron carbide 15g, 70°C deionized water 1000mL.

[0055] A method for preparing and plating a superhard alloy ceramic chemical compound solution, comprising the steps of:

[0056] A. Boron carbide activation treatment: Soak boron carbide in phosphoric acid solution for 70 minutes, then add deionized water to dilute to pH 7, remove the surface liquid after precipitation, put the remaining solution in a metal container, place ultrasonic stirring and vibration After 30 minutes, use a 1700# filter to filter out impurities, adjust the pH to 5.1 with ammonia solution or sodium hydroxide solution, and make a boron carbide mixture, referred ...

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Abstract

The invention relates to super-hard ceramal chemical compound solution and a plating method thereof. The compound solution is prepared by main salt, a reducing agent, a complexing agent, a buffering agent, silicon carbide, magnesium oxide, a cation surface active agent, boron carbide and deionized water. Compared with common conventional chemical compound plating solution, the compound solution is high in plating speed which can be up to 70 microns in each hour and stable in plating solution property. In the invention, the heat treatment manner is described as follows: a 10KW Nd: YAC laser used for pulse oscillation, light spot focusing is carried out by 10mm and scanning is carried out at a speed of 55mm / sec. the hardness can be up to HV3000. The super-hard ceramal chemical compound solution is used for stretching stamping dies and capable of prolonging the life by more than 30 times.

Description

technical field [0001] The invention relates to the field of metal-ceramic alloys, in particular to a technology of metal-ceramic composite plating. Background technique [0002] According to statistics, up to now, more than 80% of metal molds have been scrapped and failed due to surface failure. Therefore, through various surface engineering methods, the metallographic structure of the mold surface can be changed to improve the performance of corrosion resistance, wear resistance and fatigue resistance. Improving the service life of the mold is very important. In the traditional surface modification chemical heat treatment, in order to achieve surface alloying, it is necessary to mix a certain compound with the workpiece and seal it in a container, raise the temperature to above 1000°C, and keep it warm for more than 10 hours. The mold will inevitably produce thermal stress deformation under high temperature environment, and the seepage layer is only 50 microns. It cannot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/36
Inventor 程绍鹏
Owner 程绍鹏
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