鋼筋套筒檢驗

鋼(gang)(gang)筋套筒檢驗：　　鐓(dui)粗直螺紋(wen)連接接頭(tou)其(qi)優(you)點是強度(du)高，現(xian)(xian)場施(shi)工(gong)速度(du)快，工(gong)人勞動(dong)強度(du)低(di)，鋼(gang)(gang)筋直螺紋(wen)絲頭(tou)全部(bu)提前(qian)預制，現(xian)(xian)場連接為裝配作業。其(qi)不(bu)足(zu)之處在于鐓(dui)粗過(guo)程(cheng)(cheng)中易出現(xian)(xian)鐓(dui)偏現(xian)(xian)象(xiang)，一旦(dan)鐓(dui)偏必須切掉重鐓(dui)；鐓(dui)粗過(guo)程(cheng)(cheng)中產生內應力，鋼(gang)(gang)筋鐓(dui)粗部(bu)分延性降(jiang)低(di)，易產生脆斷(duan)現(xian)(xian)象(xiang)，螺紋(wen)加工(gong)需要兩(liang)道工(gong)序(xu)兩(liang)套設備(bei)完成。