LONG-LENGTH ROLLING METHOD FOR T-SHAPED GUIDE RAIL OF ELEVATOR AND PRODUCTION LINE THEREFOR

摘要

Disclosed are a long-length rolling method for a T-shaped guide rail of an elevator and a production line therefor. The method mainly comprises the steps of: first, taking an H-shaped continuous cast billet as an original billet material; then, feeding the H-shaped continuous cast billet into a universal paired conjoined rolling procedure, to roll same into a symmetrical paired T-shaped guide rail; and then, feeding the conjoined T-shaped guide rail into a cooling device for cooling, and after cooling, partitioning the conjoined T-shaped guide rail into two independent T-shaped finished rolled pieces through a partitioning and straightening procedure; and finally, after subsequent processing procedures such as sizing, saw cutting, etc. are conducted on the partitioned T-shaped finished rolled pieces, obtaining a final finished product. This method can not only solve the problem of a cooling bending phenomenon due to the limitation of cooling conditions after universal rolling is conducted on a single elevator guide rail, but can also increase the surface quality of the rolled elevator guide rail, improve the rolled internal stress, and increase the size accuracy and use performance of the elevator guide rail, thereby achieving the long-length production process of "long-length rolling, long-length cooling, and long-length straightening" of the elevator guide rail.