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不鏽鋼焊管折疊:
偽劣焊接不鏽鋼管容rong易yi產chan生sheng折zhe疊die,折zhe疊die是shi不bu鏽xiu鋼gang管guan表biao麵mian形xing成cheng的de各ge種zhong折zhe線xian,這zhe種zhong缺que陷xian往wang往wang貫guan穿chuan整zheng個ge產chan品pin的de縱zong向xiang。形xing成cheng折zhe疊die的de原yuan因yin是shi因yin為wei偽wei劣lie廠chang家jia過guo分fen追zhui求qiu效xiao率lv,壓ya下xia量liang偏pian大da,導dao致zhi管guan子zi中zhong形xing成cheng耳er子zi,下xia一yi道dao軋zha製zhi時shi就jiu形xing成cheng折zhe疊die,折zhe疊die的de產chan品pin折zhe彎wan後hou就jiu會hui開kai裂lie,不bu鏽xiu鋼gang管guan材cai的de強qiang度du會hui有you明ming顯xian下xia降jiang。偽wei劣lie焊han接jie不bu鏽xiu鋼gang管guan的de外wai表biao會hui有you麻ma麵mian現xian象xiang。麻ma麵mian是shi因yin為wei軋zha槽cao磨mo損sun嚴yan重zhong導dao致zhi不bu鏽xiu鋼gang材cai表biao麵mian不bu規gui則ze的de凹ao凸tu不bu平ping的de缺que陷xian。
不鏽鋼焊管結疤:
偽(wei)劣(lie)不(bu)鏽(xiu)鋼(gang)焊(han)管(guan)的(de)表(biao)麵(mian)容(rong)易(yi)結(jie)疤(ba),形(xing)成(cheng)原(yuan)因(yin)主(zhu)要(yao)有(you)兩(liang)點(dian),一(yi)個(ge)是(shi)劣(lie)質(zhi)不(bu)鏽(xiu)鋼(gang)焊(han)管(guan)的(de)材(cai)質(zhi)不(bu)均(jun)勻(yun)且(qie)雜(za)質(zhi)多(duo)。另(ling)一(yi)個(ge)就(jiu)是(shi)偽(wei)劣(lie)不(bu)鏽(xiu)鋼(gang)焊(han)管(guan)廠(chang)家(jia)導(dao)環(huan)衛(wei)設(she)備(bei)簡(jian)陋(lou),容(rong)易(yi)粘(zhan)鋼(gang),這(zhe)些(xie)雜(za)質(zhi)咬(yao)入(ru)軋(zha)輥(gun)後(hou)容(rong)易(yi)形(xing)成(cheng)結(jie)疤(ba)的(de)情(qing)況(kuang)。
不鏽鋼焊管裂紋:
偽wei劣lie不bu鏽xiu鋼gang焊han管guan材cai表biao麵mian還hai容rong易yi形xing成cheng裂lie紋wen,因yin為wei其qi坯pi料liao是shi土tu坯pi,土tu坯pi的de氣qi孔kong非fei常chang多duo,土tu坯pi在zai冷leng卻que的de過guo程cheng中zhong因yin為wei受shou到dao熱re應ying力li的de作zuo用yong,形xing成cheng裂lie痕hen,經jing軋zha製zhi後hou就jiu會hui有you裂lie紋wen。


不鏽鋼焊管表麵:
劣lie質zhi不bu鏽xiu鋼gang焊han管guan表biao麵mian沒mei有you金jin屬shu光guang澤ze,會hui表biao現xian出chu淡dan紅hong色se或huo類lei似si生sheng鐵tie的de顏yan色se,形xing成cheng原yuan因yin有you兩liang點dian,一yi個ge是shi其qi坯pi料liao是shi土tu坯pi。另ling一yi個ge是shi偽wei劣lie管guan材cai軋zha製zhi的de溫wen度du不bu標biao準zhun,鋼gang溫wen是shi通tong過guo目mu測ce的de,如ru此ci不bu能neng按an規gui定ding的de奧ao氏shi體ti區qu域yu做zuo軋zha製zhi,不bu鏽xiu鋼gang管guan材cai的de性xing能neng自zi然ran就jiu不bu能neng達da標biao。
weiliebuxiuganghanguanyerongyibeiguashang,yinweiweiliebuxiuganghangangguanchangjiadeshengchanshebeijianlou,rongyixingchengmaoci,guashanggangcaibiaomian,shenduguashanghaihuijianruobuxiugangguandeqiangdu。
偽(wei)劣(lie)焊(han)不(bu)鏽(xiu)鋼(gang)焊(han)管(guan)的(de)橫(heng)筋(jin)細(xi)而(er)低(di),常(chang)常(chang)會(hui)產(chan)生(sheng)充(chong)不(bu)滿(man)的(de)現(xian)象(xiang)。因(yin)為(wei)廠(chang)家(jia)為(wei)達(da)到(dao)較(jiao)大(da)的(de)負(fu)公(gong)差(cha),成(cheng)品(pin)前(qian)幾(ji)道(dao)的(de)壓(ya)下(xia)量(liang)偏(pian)大(da),鐵(tie)型(xing)偏(pian)小(xiao),孔(kong)型(xing)也(ye)充(chong)不(bu)滿(man)。
偽劣焊接不鏽鋼管的橫截麵表現為橢圓形,這是因為生產廠家為節省材料,成品輥前二道的壓下量偏大。