涡轮叶片采用机械加工方法制造已不能适应生产发展的要求。对JWF-1型涡轮发电机的不锈钢(2Cr13)叶片,我厂曾经试验过“热轧——冷拔”工艺,但没有成功。从1963年起试用开口式轧机进行精密冷轧,获得了满意的成绩。通过近二年的研究改进,成批轧制的叶片基本上均能达到要求(图1),抛光后表面光洁度达到了▽▽▽8以上。在试验与生产中所使用的轧机为φ200毫米三辊 Turbine blades using mechanical processing methods have been unable to meet the requirements of the development of production. JWF-1-type turbine stainless steel (2Cr13) leaves, I plant has been tested “hot-cold - drawing ” process, but did not succeed. Since 1963, the trial of open mill for precision cold rolling has yielded satisfactory results. After nearly two years of research and improvement, batch rolling blade can basically meet the requirements (Figure 1), polished surface finish reached ▽ ▽ ▽ 8 or more. The mill used in testing and production is a φ200 mm three roll