在水电站建設的开挖工作中,鋼钎損耗很大,如能將断釺复活,可以为国家节省大量的鋼材。鋼钎原为六角空心鋼所制,質量为高炭素鋼,根据修釺厂去年不完整的統計,平均每月有2—3吨鋼钎报廢(釺子短于40公分以下即不能使用,每公尺重量按3.59公斤計算)。我們的工地自去年12月开始推广本文所介紹的經驗后,就不再有断鋼釺报廢,可替国 In the construction of hydropower station excavation work, steel loss is great, if the broken 釺 resurrection, can save a lot of steel for the country. Formerly hexagonal hollow steel brazing is made of high quality carbon steel, according to repair Xiu Chang last year’s incomplete statistics, an average of 2-3 tons of steel brash scrap (prickly heat of less than 40 cm can not be used, Per meter weight by 3.59 kg). Since our site started to promote the experience presented in this article in December last year, there is no longer a broken steel 釺 scrapped.