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Preparation method for surface-reinforcing coating of copper crystallizer

A technology of surface strengthening and crystallizer, applied in the direction of coating, metal material coating process, etc., to achieve the effect of both production efficiency and cost advantages, and solve the problem of metallurgical bonding

Inactive Publication Date: 2015-01-14
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for preparing a reinforced coating on the surface of a copper crystallizer. This method effectively solves the problem of metallurgical bonding between the coating and the substrate of the copper crystallizer, and has both production efficiency and cost advantages. The industrial production of metallurgically bonded copper crystallizer surface strengthening coating becomes possible

Method used

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Embodiment Construction

[0011] The preparation method of the copper crystallizer surface strengthening coating of the present invention adopts the plasma powder surfacing or spray welding process, and the plasma arc between the welding torch and the copper crystallizer surface is fed into the alloy powder, and the alloy powder and the copper-based The material is melted to form a molten pool, and the welding current and powder feeding amount of surfacing or spray welding are adjusted to control the input amount to make the copper plate base material melt slightly, the welding torch moves forward to form a weld bead, and the weld bead reciprocates to form a copper mold with a metallurgical surface. Bonded strengthening coating.

[0012] Further, the above weld bead can be obtained by swinging or non-swinging gun head, the width of a single pass is 12-25mm, the overlapping amount of adjacent weld bead is 30%-50%, and the thickness of a single layer of coating for surfacing or spray welding is 1.5mm. ~2...

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Abstract

The invention discloses a preparation method for a surface-reinforcing coating of a copper crystallizer. The method employs a plasma powder built-up welding or spray welding technology. Plasma between a welding gun and the surface of the copper crystallizer is sent to an alloy powder, and the alloy powder and a copper base material are melt under the high temperature of plasma and form a molten pool, the technological parameters of built-up welding or spray welding are adjusted for enabling the copper-plate base material to be slightly molten, the welding gun moves forwards and forms a welding channel, and welding channels reciprocates and are overlapped for forming the metallurgy combined reinforcing coating on the surface of the copper crystallizer. The method helps to effectively solve the metallurgy combination problem between the coating and the copper crystallizer base body, possesses advantages of both production efficiency and cost, and makes industrialization of the metallurgy-combined copper-crystallizer surface reinforcing coating possible.

Description

technical field [0001] The invention relates to a preparation method of a strengthening coating on the surface of a copper crystallizer. Background technique [0002] The development of high-efficiency continuous casting technology requires the working surface of the mold to have high wear resistance and corrosion resistance. A single copper substrate cannot meet the above production requirements. Necessary surface treatment of the working surface of the copper mold has become a must for continuous casting production. have the conditions. At present, electroplating technology has been used to prepare various coatings on the working surface of copper crystallizers to improve the surface properties of copper crystallizers and has been widely used. However, the wear resistance of electroplating layers has not yet fully met the needs of high-efficiency continuous casting and There are problems such as environmental protection. In order to improve the performance of the working...

Claims

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Application Information

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IPC IPC(8): C23C24/10
CPCC23C24/103
Inventor 傅卫程鲁陈国喜尹志坚谭兴海
Owner SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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