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为了提高竖井钻机楔齿滚刀的寿命,研制了含钴管状碳化钨焊条,拟定了焊条药皮配方。用该焊条堆焊的楔齿滚刀,在中软岩层中的钻进试验取得了51.5米的成绩,比传统的氧乙炔堆焊碳化钨的方法,寿命提高了1.5倍。
In order to improve the service life of wedge hobs in shaft drilling rigs, cobalt-containing tubular tungsten carbide electrodes were developed and the electrode coating formula was developed. WEDGE WEDGE WEDGE WELDING WIRE RIG WELDING RESULTS OF 51.5 METERS IN THE DRILLING TEST OF MEDIUM AND SOFT ROCK STREAMS.