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钨的用途极广,除了在冶金工业、电子工业中有着重要作用外,钨的同多酸、杂多酸是良好的催化剂.此外,钨的氧化物还是较有希望的阴极电色材料. 在钨丝和硬质合金工业中,通常的工艺是用钨酸或仲钨酸铵(APT)锻烧成三氧化钨,然后再用氢气还原而制得钨粉,最后将钨粉加工成各种钨材料. 六十年代初,法国、美国、荷兰等国家使用“铵钨青铜”(其组成为(NH_4)_(0.06)WO_(?))作为原料来制取钨粉或“掺杂”钨粉.为了使由“铵钨青铜”制取的钨粉具有较好的可塑性,
Tungsten is widely used, in addition to the metallurgical industry, the electronics industry has an important role, the heteropoly acid of tungstic acid, heteropoly acid is a good catalyst. In addition, the tungsten oxide is more promising cathode material. In In tungsten and cemented carbide industries, the usual process is calcination of tungstic oxide with tungstic acid or ammonium paratungstate (APT), followed by reduction with hydrogen to produce tungsten powder, and finally tungsten powder into various tungsten materials. In the early 1960s, France, the United States, the Netherlands and other countries used “ammonium tungsten bronze” (the composition of (NH_4) _ (0.06) WO_ (?)) As raw material to make tungsten powder or “doped” Made from “ammonium tungsten bronze” system of tungsten powder has better plasticity,