根据湘潭电缆厂项久玉介绍,他们用铸轧法代替工艺落后、劳动条件差、产量低、成本高、质量不可靠的电镀法生产电子管用磷脱氧铜包铁线获得成功。此法的工艺特点是,采用直径55～60mm的热轧圆钢,在表面镀上薄层铜后置于锭模中,将经磷脱氧处理的铜水浇入锭模中,铜在已镀铜铁芯的外层铸成铜包铁锭,再经热轧及多次冷拉而 Xiangtan cable plant according to long jade introduction, they use the casting method to replace the lagging behind, poor working conditions, low output, high cost, unreliable quality of the electroplating production of electronic tubes with phosphorus deoxidized copper line success. This method is characterized by the use of technology, the diameter of 55 ~ 60mm hot-rolled round bar, after the surface coated with thin copper placed in the ingot mold, phosphorus deoxidation of copper poured into the ingot mold, copper plating The outer layer of copper core cast iron ingot, and then by hot-rolled and cold drawn several times