唐山工程技术学院和遵化钢铁厂联合研究开发的“三辊开坯机浅槽轧制新工艺”,于1991年10月17日通过省级技术鉴定。经鉴定委员会讨论,一致认为:在三辊开坯机上采用浅槽箱形孔型轧制方坯是一项成功的新工艺,轧制稳定、调整方便、减少事故、节省能耗、降低辊耗、不需投资即可取得经济效益。这 Tangshan Institute of Technology and Zunhua Iron and Steel Plant joint research and development of the “three roller open machine shallow groove rolling new technology”, on October 17, 1991 passed the provincial technical appraisal. After discussion by the appraisal committee, it was unanimously agreed that the adoption of the shallow slot box-shaped rolling billet on the three-roller open-billet machine was a successful new technology with stable rolling, convenient adjustment, less accidents, lower energy consumption and lower roll consumption , Without investment can obtain economic benefits. This