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东风电机厂焊接分厂和技术开发部合作,研制成功《水轮机蜗壳环精确下料程序》。该程序采用了直角坐标法来表示下料图形,不仅使划线工序简单易行,而且提高了展开精度,实现了“精确下料”。双河电站三台水轮机蜗壳环的加工实践表明,采用该程序后,不仅下料图形计算速度提高几百倍,而且还使划线工效提高近十倍,焊接工效提高75％,累计缩短工期三个多月。此外还节约了钢材,保证蜗壳环的型线质量,经济效益十分明显。
Dongfeng Motor Factory Welding Branch and the Ministry of Science and Technology Development, the successful development of “turbine scroll ring accurate cutting program.” The program uses Cartesian coordinates to represent the blanking pattern, not only makes the scribing process simple and easy, but also improves the unfolding precision and realizes the “accurate blanking”. The practice of the spiral casing ring of the three turbines at Shuanghe Hydropower Station shows that not only the calculation speed of the blanking pattern is increased by several hundred times but also the scribing efficiency is increased by nearly ten times and the welding efficiency is increased by 75% More than three months. In addition, it also saves the steel and ensures the quality of the profile of the volute ring. The economic benefits are obvious.