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形(xing)凹(ao)凸模具(ju)用(yong)(yong)機械壓、頂法矯(jiao)正;少量的(de)(de)冷(leng)(leng)(leng)拉(la)(la)(la)(la)六(liu)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)度(du)局部變(bian)(bian)形(xing),可與矯(jiao)直(zhi)一(yi)并進行。 當(dang)其角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)度(du)大(da)于(yu)90°時,將(jiang)一(yi)肢邊立(li)在平(ping)面(mian)上,直(zhi)接用(yong)(yong)大(da)錘(chui)(chui)另(ling)一(yi)肢邊,使角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)度(du)達到90°時為止;其角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)度(du)小于(yu)90°時,將(jiang)內(nei)(nei)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)向上垂直(zhi)放(fang)一(yi)平(ping)面(mian)上,將(jiang)適合的(de)(de)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)度(du)錘(chui)(chui)或(huo)手錘(chui)(chui)放(fang)于(yu)內(nei)(nei)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao),用(yong)(yong)大(da)錘(chui)(chui),擴開(kai)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)度(du)達到90°。冷(leng)(leng)(leng)拉(la)(la)(la)(la)六(liu)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)彎(wan)曲變(bian)(bian)形(xing)的(de)(de)矯(jiao)正。 用(yong)(yong)大(da)錘(chui)(chui)矯(jiao)正角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)將(jiang)冷(leng)(leng)(leng)拉(la)(la)(la)(la)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)矯(jiao)架上,根(gen)據(ju)冷(leng)(leng)(leng)拉(la)(la)(la)(la)六(liu)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)的(de)(de)長度(du),一(yi)人(ren)或(huo)兩人(ren)握緊角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)的(de)(de)端部,另(ling)一(yi)人(ren)用(yong)(yong)大(da)錘(chui)(chui)擊中(zhong)冷(leng)(leng)(leng)拉(la)(la)(la)(la)六(liu)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)的(de)(de)立(li)邊面(mian)和角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)筋位置(zhi)面(mian),要(yao)求打(da)準且穩。根(gen)據(ju)冷(leng)(leng)(leng)拉(la)(la)(la)(la)六(liu)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)各(ge)面(mian)彎(wan)曲和翻轉變(bian)(bian)化(hua)以及打(da)錘(chui)(chui)者(zhe)所站的(de)(de)位置(zhi),大(da)錘(chui)(chui)冷(leng)(leng)(leng)拉(la)(la)(la)(la)六(liu)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)各(ge)面(mian)時,其錘(chui)(chui)把應略有(you)(you)抬高或(huo)放(fang)低(di)。 錘(chui)(chui)面(mian)與冷(leng)(leng)(leng)拉(la)(la)(la)(la)六(liu)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)面(mian)的(de)(de)高、低(di)夾(jia)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)約為3°-10°。這樣大(da)錘(chui)(chui)對冷(leng)(leng)(leng)拉(la)(la)(la)(la)六(liu)角(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)鋼(gang)具(ju)有(you)(you)推、