利用石墨煤增碳的煉鋼技術(shù),工藝簡單可行, 增碳穩(wěn)定, 應(yīng)用廣泛.This technical process is simple, carburization is stable, application is widely.對(duì)于藥芯焊絲,增碳的門檻值在0.05%左右.The critical value of carbon increasing for FCW is about 0.05 %.添增碳粉 、 或者調(diào)換硒鼓中部制卡和會(huì)員卡...