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Steel part surface ultra-hardening treatment process

A technology for surface treatment and steel parts, applied in metal material coating technology, metal processing equipment, coating, etc., can solve the problems of dependence on imports and high cost, and achieve the effects of good dispersion, uniform particle size, and high strength

Inactive Publication Date: 2017-02-22
大连圣洁热处理科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the WC powder used in China depends on imports, and the cost is relatively high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The superhardening surface treatment process of steel parts, the process is a process of cladding a WC composite coating on an iron-based alloy by using a vacuum cladding method, and the process steps of the method are as follows:

[0025] (1) Coating material preparation: WC powder, TiC powder, ZrC powder, and Co powder are mixed in a mass ratio of 1:0.2:0.25:0.08, and the mixed powder is placed in a ball mill, Ball milling at a speed of 300r / min for 2h, the ball milling medium is absolute ethanol; the powder after ball milling is placed in an induction plasma powder device for spheroidization treatment, the specific conditions are: power 60kW, powder spraying rate 100g / min, The flow rate of the carrier gas argon is 35L / min to obtain a spherical composite coating material; the obtained spherical composite coating material is spherical particles with an average particle size of 25-60 microns; the WC powder, TiC powder, ZrC powder , The ratio of the total weight of Co po...

Embodiment 2

[0029] The superhardening surface treatment process of steel parts, the process is a process of cladding a WC composite coating on an iron-based alloy by using a vacuum cladding method, and the process steps of the method are as follows:

[0030] (1) Coating material preparation: WC powder, TiC powder, ZrC powder, and Co powder are mixed in a mass ratio of 1:0.4:0.1:0.08, and the mixed powder is placed in a ball mill, Ball milling at a speed of 360r / min for 2h, the ball milling medium is absolute ethanol; the powder after ball milling is placed in an induction plasma powder device for spheroidization treatment, the specific conditions are: power 55kW, powder spraying rate 120g / min, The flow rate of the carrier gas argon is 40L / min to obtain a spherical composite coating material; the obtained spherical composite coating material is spherical particles with an average particle size of 25-60 microns; the WC powder, TiC powder, ZrC powder , The ratio of the total weight of Co pow...

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Abstract

The invention relates to a steel part surface ultra-hardening treatment process and belongs to the field of metal material surface treatment. A vacuum cladding method is adopted for cladding an iron-base alloy with a WC composite coating. The steel part surface ultra-hardening treatment process comprises the steps that firstly, coating of the composite coating is prepared, and powder materials which are good in dispersity, uniform in particle diameter and high in strength and abrasion resistance are formed in advance; and then the surface of the steel part is cladded with the obtained spherical materials through the vacuum cladding method, and the steel part with the high surface hardness is obtained.

Description

technical field [0001] The invention relates to a superhardening surface treatment process for steel parts, which belongs to the field of surface treatment of metal materials. Background technique [0002] The surface hardening method refers to the treatment of hardening the surface layer of the part through an appropriate method while the core of the part still has toughness. The commonly used surface hardening treatment methods mainly include carburizing, nitriding, hard anodizing, coating, surface quenching, metalizing, etc. [0003] The method of improving the surface hardness can be achieved by plating a layer of metal or inorganic substance with high hardness on the surface of the part, such as chrome plating. The chromium plating layer has a high hardness, and its hardness can vary within a wide range of 400-1200HV according to the composition of the plating solution and the process conditions. The chrome-plated layer has good heat resistance and good wear resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C29/08B22F1/00
CPCB22F1/0003C22C29/067C22C29/08C23C24/103B22F1/14
Inventor 刘淑杰李海旭孙庆浩田绍洁
Owner 大连圣洁热处理科技发展有限公司
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