我厂 DZ10—600空气开关板后接线紫铜螺杆,生产批量较大,过去一直采用棒料切削加工,工序复杂,原材料浪费大,质量不易保证。现在我们利用一台160吨的冲床,采用冷挤压加工的新工艺,取得了满意的效果。现在材料利用率已由53%提高到88%,工效提高36倍,质量稳定,全年可为国家节约铜材14吨,节约工时3200小时。 I plant DZ10-600 air switch plate after the connection of copper screw, the production volume larger, the past has been using bar cutting, complex processes, raw materials, waste, quality is not easy to guarantee. Now we use a 160 tons of punch, cold extrusion process using the new technology and achieved satisfactory results. Now the material utilization rate has been increased from 53% to 88%, work efficiency increased by 36 times, the quality is stable, the annual savings of 14 tons of copper for the country, saving 3200 hours of working hours.