Surfacing compound furnace roller

Abstract

The invention discloses a surfacing compound furnace roller transporting billets to a heating furnace. The surfacing compound furnace roller comprises a roller shaft and a roller body, wherein, the roller body is fixed on the roller shaft by roller shoulders at the two ends; the roller body is provided with an air hole; a surfacing layer is arranged on the roller body. The invention changes the originally single casting body into a complex of casting, forging and surfacing. During the process of surfacing and compounding, fusion bonding is carried out on the welding materials and the roller body to form the surfacing layer which has a stable material structure and fine crystal grains. In use, the surfacing compound furnace roller eliminates worldwide problems such as roller surface accretion, dead burning and the like in steel industry; simultaneously, surfacing can be continued after the surfacing layer is worn, thus corresponding with the development requirement of recycling economy and improving the service life of the furnace roller.

Description

technical field [0001] The invention relates to equipment in a steel rolling heating furnace, in particular to a roller table for conveying billets in the heating furnace. Background technique [0002] At present, in the walking heating furnaces at home and abroad, the billets are generally loaded and unloaded by roller tables. The material end is sent to the tapping roller table in the furnace at the discharge end step by step, and the heating process of the billet is completed at the same time, and then it is sent out of the heating furnace by the tapping roller table in the furnace for rolling. After decades of development, my country's roll manufacturing industry has achieved good results, but the adjustment of product structure has not fully kept up with the technological progress of the steel industry, the pace of structural optimization and adjustment, and the production capacity of high-end rolls is obviously insufficient. Large-scale steel enterprises such as Baost...

AI Technical Summary

Problems solved by technology

At present, the products used in the industry are casting rolls. Since it is difficult to avoid segregation in casting, nodules and cracks are very common in use. The service life of imported rolls is 12 months, and the service life of domestic rolls is 10 months. After that, it can only be returned to the furnace for recasting, which greatly increases the production cost of the steel mill, and does not conform to the development principle of "reduction, reuse, recycling, and remanufacturing" of circular economy

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