Lubricant for slider and preparation method

Abstract

The invention relates to a slide lubricant and a preparation method thereof, belonging to the lubricant field. The preparation method is to add inorganic bentonite to water, stir and soak for 24 hours, add water-soluble graphite dispersant, silica sol, ethylene glycol, ethanol and water-soluble drier, water-soluble polyacrylic resin or polyurethane latex or two kinds of composite latex The formed organic binder and triethanolamine are mixed in a colloid mill, then added with natural flake graphite powder for stirring, and after it is dispersed in the mixed liquid, add silicon carbide powder and α-Al 2 o 3 Micropowder, stir well and grind in a colloid mill for 0.5 to 8 hours to obtain a skateboard lubricant. The invention is prepared with domestic raw materials, the raw materials are wide, and the cost is reduced by about 40% compared with imported lubricants. The present invention is applicable to the slide plate working surface of the sliding nozzle of the ladle and the tundish, so as to improve the lubricating performance, prevent the surface from being scratched, and make the service life of the slide plate equal to that of the imported high-priced lubricant, which is more than 1 time / set than that of the unused lubricant.

Description

Technical field [0001] The invention relates to a lubricant for sliding nozzles, in particular to a lubricant used for sliding nozzles of ladles and tundishes to improve the lubricating performance of the surfaces of sliding plates, and belongs to the field of lubricants. Background technique [0002] At present, the flow control devices used for molten steel casting in metallurgical enterprises at home and abroad are mainly sliding nozzles, and the sliding plate is the most critical component among the refractory components of the sliding nozzle, which is determined by its special conditions of use: specifically (1) long (2) under the condition of meeting the requirements of different casting processes, it needs to withstand the chemical erosion and physical erosion of molten steel repeatedly; (3) it needs to withstand the severe thermal shock of high temperature molten steel and the mechanical wear between the sliding plates when opening and closing Wait. Therefore, it is...

AI Technical Summary

Problems solved by technology

For example, in the 1980s, Japan's Daxin Chemical Industry and the United States' Vesselville Advanced Ceramics Company have produced skateboard lubricants, which have been used in my country's iron and steel enterprises. The ingredients of imported lubricants are kept secret, and their shortcomings The reason is that the product is expensive, which seriously restricts the reduction of steelmaking production costs. At the same time, the cost performance of the actual application is not very ideal. At present, the actual service life of the skateboards in my country's iron and steel enterprises is generally 1 to 2 times / set

my country also carried out research on skateboard lubricants in the late 20th century, but no large-scale application of better products has yet been seen.