【摘要】 以钨精矿为主要原料，用铝铁和碳化硅还原精矿中的钨，再用碳化硅中的碳和药皮中的过量石墨生成WC，并与铬、钼、钒、钛等碳化物形成元素共同反应形成具有高耐磨性的复合碳化物，制成钢芯电焊条，堆焊到需要耐磨的机件上，延长机件的使用寿命。更多还原

【Abstract】 Tungsten concentrates are used main material,to reduce the tungsten in concentrates by using aluminium iron and silicon carbide,and than. react WC by using carbon in silicon carbide and excessive graphite in web,and form double carbide with high wear resistance by together reacting with elements formed by carbides,such as Cr, Mo,V, Ti etc. Thus,steel-core electric filler rods are produces,and bead welding to the parts need. wear resistance,in order to enlarge service life of the parts.更多还原