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一般导电用铜含氧量在200ppm以上。无氧铜含氧量小于30ppm,因而具有优良的加工及导电性能。可广泛用于电真空器件、通讯电缆、耐高温导体,拉制微细丝,更适用于普通线缆和漆包线。 我国无氧铜的生产以电炉严加密封熔炼,气体保护铸锭,设备投资大、成品率低、价格高。 78年我厂学习芬兰奥托昆布公司的上引法连续铸造工艺,自行设计制造了多头上引连铸机、保温炉、φ12及φ15结晶器与其它设备,79年初即用多头生产出了合格的无氧铜杆。在82年6月该设备和工艺通过鉴定。
General conductive copper oxygen content above 200ppm. Oxygen-free copper oxygen content of less than 30ppm, which has excellent processing and electrical conductivity. Can be widely used in electrical vacuum devices, communications cables, high temperature conductors, drawn microfilament, more suitable for ordinary cable and enameled wire. Oxygen-free copper production in our country sealed with smelting furnace sealed, gas protection ingot, equipment investment, low yield, high prices. 78 years I learned the Finnish company Tuokunuotu continuous casting process, designed and manufactured on their own long lead casting machine, holding furnace, φ12 and φ15 mold and other equipment, the beginning of 79 years with long production qualified Oxygen-free copper rod. In June 82, the equipment and technology passed the appraisal.