论文部分内容阅读
ХПТ-250冷轧管机的9Cr2MoV钢轧槽块传统的淬火方法是:在850℃下加热7～8h后,在空气中预冷1.5～3min,再喷水冷却1.5～3min,最后在油中冷却30min。在淬火过程中,水经过弧形集管的孔喷到冷却表面上。根据轧槽孔型的直径选定喷水冷却的延续
The traditional quenching method of 9Cr2MoV steel rolling block of ХПТ-250 cold rolling mill machine is as follows: preheat 1.5 ~ 3min in the air after heating at 850 ℃ for 7 ~ 8h, then spray water cooling for 1.5 ~ 3min, finally in oil Cool 30min. During quenching, water is sprayed onto the cooling surface through the holes of the arcuate header. Depending on the diameter of the groove type spray cooling continuation