Brief introduction to the application of thermal spraying technology in steel industry

       The surface of the largest rollers in the iron and steel industry has been subjected to harsh working conditions of high temperature oxidation, corrosion, wear and thermal shock, and the damage is very fast, which not only greatly increases the consumption of f rollers, but also directly affects the yield of steel and high-quality products. A few days ago, foreign countries used thermal spraying technology to pre-protect the furnace rollers, conveying rollers, guide rollers, hot-dip galvanizing rollers and other rollers, and achieved good results. Runnei has also got off to a good start. For example, pre-protection of the 1450 finishing rolling conveyor roller by flame spray melting method can increase the service life by 3-5 times. Others, such as blast furnace tuyere, slag port, transport sprocket, rolling mill plum blossom head, cold-drawn steel pipe inner mold, tensile pagoda wheel, etc., are generally repaired and pre-protected by thermal spraying technology, and the effect is good.