我国钨片年消耗量达数千万片。但国内钨片触点现有生产工艺落后,钨棒利用率只有45％左右,同时粉尘、噪声、电能及工时消耗都很大,导致产品成本高,无法进入国际市场。北京市电加工研究所受北京汽车喇叭厂委托,于去年底开始研究钨触点线切割切片工艺,现已取得成功,并于一九八三年八月进行了鉴定。 Tungsten consumption in China amounted to tens of millions. However, the current production process of domestic tungsten chip contacts is lagging behind, with utilization rates of only about 45% of tungsten rods. At the same time, dust, noise, power consumption and working hours are very high, resulting in high product cost and inability to enter the international market. Commissioned by Beijing Automobile Horn Factory, Beijing Institute of Electro-Mechanical Processing commenced research on the tungsten contact wire cutting and slicing process at the end of last year and has now succeeded and was appraised in August 1983.