什么是鋼筋連接(jie)套筒的工(gong)藝(yi)檢驗
工(gong)(gong)藝檢(jian)(jian)(jian)驗(yan)就是鋼筋(jin)(jin)(jin)(jin)(jin)連(lian)接(jie)(jie)開始前及施工(gong)(gong)過(guo)程中(zhong),應對每(mei)批(pi)進(jin)場鋼筋(jin)(jin)(jin)(jin)(jin)和(he)直螺(luo)紋接(jie)(jie)頭(tou)進(jin)行(xing)工(gong)(gong)藝檢(jian)(jian)(jian)驗(yan),也是對加工(gong)(gong)件(jian)(jian)的(de)進(jin)場驗(yan)收(shou)檢(jian)(jian)(jian)查。為了(le)保(bao)證套(tao)(tao)絲(si)質量(liang),減(jian)少(shao)套(tao)(tao)絲(si)機(ji)(ji)和(he)梳刀的(de)損(sun)壞,鋼筋(jin)(jin)(jin)(jin)(jin)下(xia)料時,應首(shou)現(xian)做(zuo)到切(qie)(qie)口端面(mian)垂直于(yu)鋼筋(jin)(jin)(jin)(jin)(jin)軸線(xian)。鋼筋(jin)(jin)(jin)(jin)(jin)平直,切(qie)(qie)口無馬蹄形(xing)且不撓曲,鋼筋(jin)(jin)(jin)(jin)(jin)套(tao)(tao)絲(si)加工(gong)(gong)時,套(tao)(tao)絲(si)機(ji)(ji)必須(xu)用(yong)水溶性切(qie)(qie)削(xue)冷卻潤滑(hua)液,不得用(yong)機(ji)(ji)油(you)潤滑(hua)或不加潤滑(hua)液套(tao)(tao)絲(si),絲(si)扣加工(gong)(gong)完成(cheng)后,用(yong)量(liang)規(gui)(gui)包括牙形(xing)規(gui)(gui)、卡規(gui)(gui)或錐(zhui)形(xing)螺(luo)紋塞規(gui)(gui)檢(jian)(jian)(jian)驗(yan),經檢(jian)(jian)(jian)驗(yan)合格(ge)的(de)絲(si)頭(tou),一端應戴(dai)上保(bao)護帽,另一端按型式檢(jian)(jian)(jian)驗(yan)報告提供(gong)的(de)力矩值擰(ning)(ning)緊(jin)連(lian)接(jie)(jie)套(tao)(tao),連(lian)接(jie)(jie)套(tao)(tao)外露一側擰(ning)(ning)上密(mi)封蓋,并按規(gui)(gui)格(ge)分類堆放。連(lian)接(jie)(jie)鋼筋(jin)(jin)(jin)(jin)(jin)時,將已擰(ning)(ning)好連(lian)接(jie)(jie)套(tao)(tao)的(de)上層鋼筋(jin)(jin)(jin)(jin)(jin)擰(ning)(ning)到被連(lian)接(jie)(jie)鋼筋(jin)(jin)(jin)(jin)(jin)上,再用(yong)力矩扳手(shou)擰(ning)(ning)緊(jin),并隨手(shou)劃油(you)漆標記線(xian),便于(yu)檢(jian)(jian)(jian)查。然(ran)后對鋼筋(jin)(jin)(jin)(jin)(jin)母(mu)材(cai)(cai)進(jin)行(xing)抗拉強度的(de)檢(jian)(jian)(jian)驗(yan)和(he)對每(mei)件(jian)(jian)規(gui)(gui)格(ge)的(de)鋼筋(jin)(jin)(jin)(jin)(jin)接(jie)(jie)頭(tou)試(shi)件(jian)(jian)進(jin)行(xing)檢(jian)(jian)(jian)驗(yan),兩種檢(jian)(jian)(jian)驗(yan)各取三個以上試(shi)件(jian)(jian),且應取自(zi)接(jie)(jie)頭(tou)試(shi)件(jian)(jian)的(de)同一鋼筋(jin)(jin)(jin)(jin)(jin)(即鋼筋(jin)(jin)(jin)(jin)(jin)母(mu)材(cai)(cai)試(shi)件(jian)(jian)與(yu)接(jie)(jie)頭(tou)試(shi)件(jian)(jian)應在同一根鋼筋(jin)(jin)(jin)(jin)(jin)上截取),進(jin)行(xing)拉伸試(shi)驗(yan)。