电焊条在焊芯、药皮类型被选定后，即可依据焊条药皮中的成分要求来选取所需要的原材料。 （1）、原材料分类与用途 1)、金属及铁合金类 金属及铁合金在药皮中主要作用有两个，即冶金反应和合金化。 冶金反应类：铝粉、硅铁、锰铁、钛铁，作用是脱氧、硫、磷； 合金化类：金属铬、镍、钼铁、钒铁、钛铁、锰铁等，作用是过渡合金元素。 2)、矿物类 如：大理石、白云石、萤石、白泥、长石、云母等，作用是造气、造渣、稳弧等。 3)、化工产品类 如：碳酸钾、钛白粉、碳酸钡、纯碱、水玻璃等，作用是稳弧、粘结成型。 4 ）、有机物类 如：淀粉、木粉、微晶纤维素、竹粉、糊精等，作用是增加电弧保护气氛，加大电弧吹 力作用和改善涂料的压涂性能。 原材料标准对上述原材料的纯度和颗粒度都有具体要求。如金属锰，过40 目为100%， 过 60 目<50%，如果金属及铁合金的颗粒过细，易在焊接过程烧损，过粗，造成合金元素过 渡不均匀。
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电焊条
In welding wire core, medicine skin type to be selected, can according to the skin electrode medicine components to select need raw material. (1), raw material classification and use 1), metal and ferroalloy of metal and ferroalloy in medicine in skin main effect has two, namely metallurgy reaction and alloying. Metallurgy reaction classes: aluminum powder, electric, ferromanganese, titanium iron, the function is deoxidization, sulfur and phosphorus; Alloying classes: metallic chromium and nickel, molybdenum iron, ferrovanadium, titanium iron, femn, the function is transition alloying elements. 2), mineral kind of such as: marble, dolomite, fluorite, white clay, feldspar, mica, etc, the function is the gasification, slagging, steady arc, etc. 3), chemical products such as: potash, titanium pigment, 5-trifluorophenol, soda ash, sodium silicate, etc, the function is steady arc, the bond to shape. 4), organic peptides such as: starch, wood powder, microcrystalline cellulose, bamboo powder, such as inclusion, action is protective atmosphere, increase increase arc arc blow force and improve the coating performance. With pressure Raw materials to the above standard of raw materials and purity particle degree have specific requirements. Such as metal manganese, 40 to 100%, over 60 eyes eyes < 50%, if the metal and ferroalloy particles in the welding process of separation, easy loss caused by too thick, alloy elements have come not even.
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Welding wire
