我厂焊补鑄件使用的三种焊条,都能保証焊补質量,不影响机械加工。这几种焊条成本低,所用的原料市場上都能够买到。现在介紹出来給兄弟厂参考。一、软鋼焊条 1.焊条芯和焊药:用直徑4公厘的鉄絲退火后做焊条芯(退火温度是800～850℃)。焊药成分:生石灰(用熟石灰代替也可以)10％、小苏打13％、硼砂24％、二氧化錳20％、石英砂8％、石墨粉20％、黄血盐5％。 I plant welding castings used in three kinds of electrodes, welding quality can be guaranteed, does not affect the machining. These electrodes low cost, the raw materials used on the market can buy. Now introduced to Brother factory reference. First, the mild steel electrode 1. Rod core and flux: 4 mm diameter wire annealed after the core (annealing temperature is 800 ~ 850 ℃). Solder composition: quicklime (also can be replaced by hydrated lime) 10%, baking soda 13%, borax 24%, 20% manganese dioxide, quartz sand 8%, 20% graphite, yellow blood salt 5%.