我厂从一九七三年开始冶炼不锈钢铸件。由于原有等离子切割设备不适用,不锈钢铸件浇冒口的切割就成了我厂生产的关键。起初,我们采用碳弧切割,劳动条件恶劣,切口质量差,成本高,且需要大容量的直流电源。后来,我们在学习了《焊接》杂志一九七三年第五期介绍的加铁丝不锈钢氧气切割法的基础上,试验成功了不加铁丝的氧一乙炔焰振动切割工艺,解决了生产关 Our factory smelted stainless steel castings from 1973. As the original plasma cutting equipment does not apply, stainless steel castings riser cutting has become the key to our plant. At first, we used carbon arc cutting, poor working conditions, poor incision quality, high cost, and large capacity DC power supply. Later, on the basis of studying the oxygen-added stainless steel oxygen cutting method introduced by Welding Magazine in the third issue in 1973, we succeeded in testing the iron-free oxy-acetylene flame vibration cutting process to solve the problem of production off