Copper alloy semi-continuous casting crystallizer high-temperature lubricating material and preparation method thereof

Abstract

The invention discloses a copper alloy D.C. casting crystallizer high-temperature lubricating material and a preparation method thereof. Glass dust as entraining agent, carbon monofluoride modified by nano-supramoly as lubricant, and microcrystalline paraffin as parting agent are mixed and crushed in a globe mill to generate the high-temperature lubricating material. On premise that the original material selecting mode is not changed and the working procedures are not increased, the slag inclusion problem of the traditional lubricant is solved; the ingredient proportion can be adjusted according to the casting temperature; thereby, the method is applicable to the D.C. casting of various copper alloys, the friction factor between the copper ingot and the crystallizer is greatly decreased, the abrasion on the surfaces of the copper ingot and the crystallizer is reduced, the casting speed of the copper ingot is improved, the breakout is reduced and the production efficiency is improved; the invention has significant application value in the high-temperature lubricating field of metallurgy, chemical engineering and hylology.

Description

technical field [0001] The invention relates to the field of metallurgical lubricating materials, in particular to a high-temperature lubricating material for a copper alloy semi-continuous casting crystallizer and a preparation method thereof. Background technique [0002] In the process of producing copper ingots by semi-continuous casting, the quality of ingots is closely related to factors such as casting temperature, casting speed, and cooling intensity. If the casting temperature is too high, the casting speed is too fast, and the cooling cannot keep up, it is easy to cause the ingot Cracks appear on the surface, affecting the structure of the ingot, and even leaking; therefore, high-temperature lubricating materials are often used in the semi-continuous casting process to ensure the normal progress of the casting process. In the past, gas protection and oil lubrication processes were widely used, but due to their high cost and cumbersome operation, flames and large sm...

AI Technical Summary

Problems solved by technology

Chinese patent (CN 1159123C) discloses a high-temperature lubricant for continuous casting crystallizers and its preparation process. The product is mainly lubricated by brushing the inner wall of the crystallizer; the method is cumbersome to operate and reduces production efficiency. And it is easy to peel off the lubricant and side wall under the scraping of the ingot, resulting in lubrication failure

In summary, it can be seen that the above methods have certain advantages, but also have many defects, so they have not been promoted.