Coating material for steel rolling roll and steel mold deactivation composite-plating repair and production method thereof

Abstract

It is used for rolling steel rolls, steel mold passivation, replating, restoration and reduction coatings and production methods. The raw material components and parts by weight are: 28-34 parts of phenolic resin, 12-17 parts of polyvinyl butyral, and polyvinyl formal 12-17 parts, methanol 7-10 parts, rosin 1-2 parts, diethylenetriamine 0.3-0.5 parts, metal manganese powder 2-5 parts, nickel powder 3-5 parts, chromium aluminum alloy powder 4-6 parts, 4-6 parts of white carbon black, 9-13 parts of clay, 3-5 parts of additives. The finished product is a brown viscous thin paste type paste, resistant to dilute concentrated sulfuric acid and hydrochloric acid; strong adhesion and adhesion. The product of the invention is sprayed on the surface of rolls or molds without stopping production to change rolls. Rolls or molds coated with this paint and repaired and restored can withstand high temperature 1300-1500°C oxidation friction and friction, and when rolling hot-rolled sheets at 1200-1300°C, there will be no pits, pits, cracks, and less likely to fall off. block, and can increase the service life of rolls or molds by 1-2 times, increase output by more than 50%, reduce energy consumption by 70%, and reduce rolling costs by more than 30%.

Description

technical field [0001] The invention relates to a coating used for passivation, replating, restoration and reduction of steel rolling rolls and steel molds, which replaces the ancient techniques of welding, welding, grinding, turning and planing for repairing steel rolling rolls at home and abroad. Background technique [0002] More than 90% of the steel molds used at home and abroad are casted with ordinary steel. The reasons are: first, low cost; second, easy casting process; (Cast steel itself is not resistant to high temperature oxidation and corrosion, let alone friction and impact). When rolling steel, the rolls are generally rolled at a high temperature of 800-1200°C, and each roll can only roll 1500-2000 tons of steel before it breaks, and another roll must be replaced. Replacement of rolls requires the shutdown of the entire rolling line, which takes 2-4 hours, consumes a large amount of water, electricity, coal, gas, and oil, and seriously affects the production s...

AI Technical Summary

Problems solved by technology

Replacement of rolls requires the entire rolling line to be shut down, which takes 2-4 hours, consumes a lot of water, electricity, coal, gas, and oil, and seriously affects the production schedule and steel rolling output