论文部分内容阅读
影响轧槽块使用寿命的因素很多,其中毛坯质量引起的报废率达18.2％,改进和完善热处理工艺能明显提高毛坯的成材率,由于对冷轧管机变形区温度埸的研究结果所做的回火工艺改进使轧槽块平均使用寿命增加了105％,毛坯成材率接近100％;孔型设计的改进使轧槽块平均使用寿命在上述基础上又提高了36％,159×3 mm16Mn管材的成批生产使LG-200轧机达到了新的水平。
There are many factors affecting the service life of the grooved block, of which the rejection rate caused by the rough quality is up to 18.2%. Improving and perfecting the heat treatment process can obviously improve the yield of the blank. Due to the research on the temperature in the deformation zone of cold rolling mills, The tempering process improved the average service life of the grooved block by 105% and the blank finished rate nearly 100%. The improvement of the hole design made the average service life of the grooved block increased by 36% on the above basis. The 159 × 3 mm16Mn pipe The mass production of LG-200 rolling mill reached a new level.