The results show that the realizing flux-wall to guid transfer form of metal droplet is a prerequisite to the fine usability of double coating electrode.
结果表明：双层药皮焊条熔滴实现渣壁过渡形态，是焊条良好工艺性的前提条件；
The flux-wall guided transfer is a kind of ideal form of metal-droplet transfer of covered electrodes.
渣壁过渡是焊条金属熔滴理想的过渡形态。
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