Method for preparing high-temperature wear-resistant coating on continuous casting crystallizer copper alloy plate surface

A continuous casting crystallizer and copper alloy plate technology, which is applied in the field of high-temperature wear-resistant coatings, can solve the problems of complex process flow and high cost, and achieve the effects of simple process operation, low cost and excellent thermal shock resistance
CN102851632AInactive Publication Date: 2013-01-02JIANGSU UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV OF SCI & TECH
Publication Date
2013-01-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing a high-temperature wear-resistant coating on a continuous casting crystallizer copper alloy plate surface, which comprises the following step: spraying metal ceramic powder on a pretreated copper alloy plate surface by a plasma spraying process to form a metal ceramic coating of which the thickness is 0.5mm, wherein the metal ceramic powder is Cr3C2-NiCr powder of which the particle size is 325-500 meshes; the Cr3C2-NiCr powder comprises 70-80 wt% of Cr3C2 and the balance of NiCr alloy powder; and the Ni / Cr mass ratio in the NiCr alloy powder is 80:20. The coating prepared by the method disclosed by the invention has the advantages of high bonding strength, favorable thermal shock resistance and long thermal-fatigue life, can satisfy the working requirements for crystallizer copper alloy plates, and obviously prolongs the service life of the crystallizer copper alloy plate.
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Description

technical field

[0001] The invention relates to a method for plasma spraying a high-temperature wear-resistant coating on the surface of a copper alloy plate, in particular to a method for preparing a high-temperature wear-resistant coating on the surface of a copper alloy plate of a continuous casting crystallizer. Background technique

[0002] Continuous casting has the characteristics of high efficiency and energy saving, and is a conventional production technology in the modern iron and steel industry. The crystallizer is the core of the continuous casting machine. It is a device that injects molten steel into it to form a continuous hard shell on the outer layer of the molten steel, and then pulls it into the fan-shaped section supporting the guide section to cool and solidify, and pulls out the billet. Its technical performance It will directly affect the service life, production efficiency and billet quality of continuous casting equipment.

[0003] In continuous cas...

Claims

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