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Preparation method of nickel coated titanium carbide induction cladding layer

A technology of titanium carbide and cladding layer, which is applied in the field of preparation of nickel-coated titanium carbide induction cladding layer, can solve the problems of impervious coating, high resistivity, poor wettability, etc., and achieve the effect of dense cladding layer

Inactive Publication Date: 2018-12-07
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method overcomes the defects of poor wettability and high resistivity of TiC and Ni, which lead to impermeable coating melting and more pores in the induction cladding process.

Method used

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  • Preparation method of nickel coated titanium carbide induction cladding layer
  • Preparation method of nickel coated titanium carbide induction cladding layer
  • Preparation method of nickel coated titanium carbide induction cladding layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A preparation method of a nickel-clad titanium carbide induction cladding layer, comprising the steps of:

[0042] (1) Firstly clean the TiC powder, ultrasonically clean the TiC powder with deionized water, then use 10wt.% NaOH to degrease the TiC powder for 10 minutes, and then soak in 10wt.% dilute hydrochloric acid to neutralize the TiC powder. One step of NaOH, and finally ultrasonic cleaning of TiC with absolute ethanol until the liquid is clear after cleaning. Then, roughen the TiC powder, use 5wt.% HF solution to soak the TiC powder for 3 minutes under ultrasonic conditions to improve the surface roughness of TiC, and clean the powder with deionized water after roughening. Subsequently, the TiC powder was sensitized, and the TiC powder was put into a mixed solution of 80g / L stannous chloride and 80mL / L concentrated hydrochloric acid for 15min, and then rinsed with deionized water several times until neutral. Then activate the TiC powder, put the TiC powder into ...

Embodiment 2

[0051] A preparation method of a nickel-clad titanium carbide induction cladding layer, comprising the steps of:

[0052] (1) Firstly clean the TiC powder, ultrasonically clean the TiC powder with deionized water, then use 10wt.% NaOH to degrease the TiC powder for 12 minutes, and then soak in 10wt.% dilute hydrochloric acid to neutralize the TiC powder. One step of NaOH, and finally ultrasonic cleaning of TiC with absolute ethanol until the liquid is clear after cleaning. Then, roughen the TiC powder, use 5wt.% HF solution to soak the TiC powder for 2 minutes under ultrasonic conditions to improve the surface roughness of TiC, and clean the powder with deionized water after roughening. Subsequently, the TiC powder was sensitized, and the TiC powder was put into a mixed solution of 80g / L stannous chloride and 80mL / L concentrated hydrochloric acid for 15min, and then rinsed with deionized water several times until neutral. Then activate the TiC powder, put the TiC powder into ...

Embodiment 3

[0061] A preparation method of a nickel-clad titanium carbide induction cladding layer, comprising the steps of:

[0062] (1) Firstly clean the TiC powder, ultrasonically clean the TiC powder with deionized water, then use 10wt.% NaOH to degrease the TiC powder for 15 minutes, and then soak in 10wt.% dilute hydrochloric acid to neutralize the TiC powder. One step of NaOH, and finally ultrasonic cleaning of TiC with absolute ethanol until the liquid is clear after cleaning. Then, roughen the TiC powder, use 5wt.% HF solution to soak the TiC powder for 4 minutes under ultrasonic conditions to improve the surface roughness of TiC, and clean the powder with deionized water after roughening. Subsequently, the TiC powder was sensitized, and the TiC powder was put into a mixed solution of 80g / L stannous chloride and 80mL / L concentrated hydrochloric acid for 15min, and then rinsed with deionized water several times until neutral. Then activate the TiC powder, put the TiC powder into ...

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Abstract

The invention discloses a preparation method of a nickel coated titanium carbide induction cladding layer. Firstly, the chemical nickel plating is performed on TiC powder to form a nickel Ni coated TiC powder with a nuclear-shell structure; then, the ball milling is performed on the Ni coated TiC powder and low-hardness nickel self-fusing alloy powder; a basal body is pretreated, and the surface of the basal body is polished by an abrasive paper; then, mixed powder and a water glass binding agent are mixed as paste for coating of the surface of matrix steel and drying; and finally, an argon protection induction cladding method is adopted to prepare the nickel base titanium carbide induction cladding layer containing undecomposed TiC particles on the surface of the basal body. The preparation method solves the problems of weak wettability of titanium carbide and nickel in a common nickel base reinforced titanium carbide induction cladding layer, half melting of the cladding layer causedby high resistivity of titanium carbide and loose structure, and achieves broad application prospect on the aspect of improving the wear resistance of tools, molds and structural parts.

Description

technical field [0001] The invention relates to the field of induction cladding, in particular to a preparation method of a nickel-coated titanium carbide induction cladding layer. Background technique [0002] The main failure modes of tools, molds or mechanical parts during the working process are wear, corrosion and fracture. And wear is one of its main failure modes. Wear failures of tools, dies or mechanical parts mainly occur at the surface. So improving their surface properties is the most important measure to improve their life. Compared with other surface treatment technologies, induction cladding technology has the advantages of fast heating speed, less heat loss, high heating efficiency, no pollution, high processing quality, and easy automatic control. It is often used for surface modification and surface repair of tools, molds or parts. At present, Ni-based self-fluxing alloys have high hardness, good wear resistance and high-temperature oxidation resistance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B22F1/02C23C18/36C23C18/18
CPCC23C18/1639C23C18/1893C23C18/36C23C24/103B22F1/17
Inventor 潘成刚魏靖吴竹白炎史记曾汉荣贺晓龙冯斯琦何鹏
Owner WUHAN UNIV OF SCI & TECH