3月30日，中核二二公司承擔(dan)制造的“華龍一號”核電示范項目水閘門(men)在公司浙江海(hai)鹽鋼結構(gou)制造基地如期出廠發運。
此批水閘門(men)物項(xiang)共有52個包裝(zhuang)箱，總重80噸，最重單件約30噸。為保證運(yun)輸(shu)質量，中核二二鋼結(jie)構(gou)分公司對水閘門(men)物項(xiang)進(jin)行了精細(xi)包裝(zhuang)，反(fan)復檢查，確(que)保萬(wan)無一失。
核電站水(shui)(shui)閘門是反應堆水(shui)(shui)池和乏(fa)燃料水(shui)(shui)池的(de)重要(yao)部件，其折邊異(yi)形結構精度(du)要(yao)求高、折邊難度(du)大(da)，折邊尺寸不規(gui)則，折邊厚度(du)最大(da)為14毫米(mi)，焊接(jie)變(bian)形工(gong)(gong)藝控制(zhi)難度(du)大(da)。為切實(shi)(shi)保障(zhang)水(shui)(shui)閘門制(zhi)作工(gong)(gong)藝的(de)精確合理性，中(zhong)(zhong)核二二鋼結構分公司在施工(gong)(gong)過程(cheng)中(zhong)(zhong)成立專(zhuan)業施工(gong)(gong)班(ban)組(zu)，對施工(gong)(gong)方案中(zhong)(zhong)防(fang)變(bian)形工(gong)(gong)裝進行(xing)驗證，對焊接(jie)收縮余量、下(xia)料及折彎余量等重要(yao)工(gong)(gong)藝參數(shu)進行(xing)模擬實(shi)(shi)驗，并組(zu)織焊工(gong)(gong)強化練(lian)習。同時，首次在水(shui)(shui)閘門制(zhi)作過程(cheng)中(zhong)(zhong)推廣運用了埋弧自動焊，大(da)幅(fu)提高了焊接(jie)效(xiao)率，有效(xiao)控制(zhi)了焊接(jie)變(bian)形，為水(shui)(shui)閘門項目制(zhi)作任務的(de)順利完成打(da)下(xia)了堅實(shi)(shi)基礎。
