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我厂原使用的轧辊预热器是1954年由苏联引进的设备,采用工频电感应加热,轧辊被加热的温度低,1962年以前一直是低温装辊;当轧辊温度提高到300℃左右时,方可轧制薄规格钢板,这样就严重地
The original roller preheater used in our factory was imported from the Soviet Union in 1954. It was heated by power frequency electric induction and the temperature of the roller was low and was kept at a low temperature before 1962. When the temperature of the roller was raised to about 300 ℃ , Before rolling thin gauge plate, so serious