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钴基堆焊硬质合金是以钴、铬、钨和碳为主的铸造合金。它具有硬度高、耐磨损性优越、耐蚀性强等特点,即使在红热的高温下使用,亦能保持这些特点。因此,若在各种机器中,需要耐热、耐腐蚀、耐磨损的部份,将这种合金堆焊于其表面,可大大提高使用寿命。所以,钻基合金的价格尽管较高,但使用价值仍很广。这类合金,从1907年以含25％铬的钴铬合金开始在工业上应用,后来加入钨,使合金的硬度显著提高,应用日益广泛。国外根
Cobalt based surfacing cemented carbide is a foundry alloy mainly composed of cobalt, chromium, tungsten and carbon. It has high hardness, superior wear resistance, corrosion resistance and other characteristics, even in the red hot high temperature use, but also to maintain these features. Therefore, if in a variety of machines, need heat-resistant, corrosion-resistant, wear-resistant parts, the alloy deposited on the surface of its welding, can greatly improve the service life. Therefore, the price of drill-based alloys, although higher, but the use of value is still very wide. Such alloys, from 1907 to 25% chromium-containing cobalt-chromium alloy in industrial applications, and later added to tungsten, the alloy hardness significantly increased, the increasingly widespread use. Foreign roots