Structure Modification of Roller Table within Steel Tube Reheating Furnace

Owing to the temperature ranging from 800 ℃ to 1 120 ℃ of the steel tube reheating furnace, damage frequently happens to the inlet/outlet roller tables of the furnace, or to the pipe body to cause such defects as black dot, scratch, steel sticking and pit, etc., getting the pipe fail to meet application requirements. To solve the issue, investigation of the existing problems and their causes concerning several steel tube reheating roller tables with different structures are made. As a result, the roller table is improved. Proposed here are the selection and recommendation of proper material and structures of different roller sections according to reheating furnaces with specific temperature ranges. Also mentioned are some points of the roller table that need care during operation.