Iimveliso zentsimbi engagqwaliyo zisetyenziswa kakhulu kumashishini amaninzi kunye nokusetyenziswa kwazo ngenxa yokusebenza kwazo okugqwesileyo kunye neempawu zazo. Namhlanje, siza kuxoxa ngombhobho ongenamthungo wentsimbi engagqwaliyo kunye nombhobho wentsimbi engagqwaliyo ye-ERW, kunye nomahluko phakathi kwezi mveliso zimbini.
Kukho umahluko phakathi kombhobho we-ERW stainless steel kunye nombhobho we-stainless steel seamless. Umbhobho we-ERW sisishunqulelo se-Electric Resistance Welding. Usetyenziselwa ukuthutha ulwelo olufana namafutha, iigesi, njl.njl., nokuba luphantsi koxinzelelo, kwaye udlala indima ebalulekileyo kwimibhobho kwihlabathi liphela. Kwangaxeshanye, ngumbhobho wentsimbi ongenamthungo. Imibhobho yentsimbi eyisikwere neyingxande engenamalungu kunye neeprofayili ezingenanto isetyenziselwa ukuthutha ulwelo ngenxa yamandla ayo aphezulu okugoba kunye nokujika, kunye nokwenza iindawo zesakhiwo kunye nezoomatshini. Ngokubanzi, imibhobho ye-ERW kunye nemibhobho yentsimbi engenamthungo isetyenziselwa iinjongo ezahlukeneyo.
Iipayipi zentsimbi engenamthungo zenziwe ngeebhilethi ezingqukuva, ngelixa iipayipi zentsimbi engenamthungo ze-ERW zenziwe ngeekhoyili ezigoqiweyo ezishushu. Nangona ezi zinto zimbini zahlukile ngokupheleleyo, kufuneka kuqatshelwe ukuba umgangatho wemveliso yokugqibela - iipayipi zixhomekeke ngokupheleleyo kwezi zinto zimbini - ulawulo lomgangatho ngexesha lokuveliswa kunye nemeko yokuqala kunye nomgangatho wezinto ezikrwada. Zombini iipayipi zenziwe ngentsimbi engenamthungo yamanqanaba ahlukeneyo, kodwa eyona ixhaphakileyo yipayipi eyenziwe ngentsimbi engenamthungo 304.
I-billet engqukuva iyafudunyezwa ize ityhalelwe kwintonga eneembobo ide ibe yimeko engenanto. Emva koko, ubude bayo kunye nobukhulu bayo kulawulwa ziindlela zokukhupha. Kwimeko yokuveliswa kwemibhobho ye-ERW, inkqubo yokuvelisa yahlukile ngokupheleleyo. I-roll igobile kwicala le-axial, kwaye imiphetho edibeneyo idityaniswe kubude bayo bonke nge-resistance welding.
Iityhubhu zentsimbi engenamthungo zihlanganiswe ngokupheleleyo kumgca wokudibanisa kwaye ziyafumaneka kwi-OD ukuya kuthi ga kwi-intshi ezingama-26. Kwelinye icala, neenkampani zentsimbi eziphambili ezinetekhnoloji ye-ERW zinokufikelela kuphela kububanzi bangaphandle obuyi-intshi ezingama-24.
Ekubeni imibhobho engenamthungo ikhutshiwe, ayinazo iijoyinti kwicala le-axial okanye le-radial. Imibhobho ye-ERW, kwelinye icala, yenziwa ngee-coils ezigobileyo ecaleni kwe-axis yazo ephakathi ukuze zihlanganiswe ubude bazo bonke.
Ngokubanzi, iipayipi ezingenamthungo zisetyenziselwa ukusetyenziswa koxinzelelo oluphezulu, ngelixa iipayipi ze-ERW zisetyenziselwa inkonzo kwiindawo ezinoxinzelelo oluphantsi noluphakathi.
Ukongeza, ngenxa yeempawu zokhuseleko ezisemgangathweni zeepayipi ezingenamthungo, zisetyenziswa kakhulu kwi-oyile negesi, ekucoceni ioyile nakwezinye iikhemikhali, kwaye kufuneka umgaqo-nkqubo wokungavuzi ukuze kuqinisekiswe ukhuseleko lwabantu kunye namashishini. Kwangaxeshanye, iipayipi ze-ERW ezenziwe kakuhle phantsi kolawulo olungqongqo lomgangatho zingasetyenziselwa iinkonzo ezifanayo ngaphandle kweenkonzo eziqhelekileyo ezifana nokuthuthwa kwamanzi, i-scaffolding kunye nocingo.
Kuyaziwa ukuba ukugqitywa kwangaphakathi kwemibhobho ye-ERW kuhlala kulawulwa ziindlela zokulawula ezisemgangathweni, ngoko ke zihlala zingcono kunemibhobho engenamthungo.
Kwimeko ye-ASTM A53, uhlobo S luthetha i-seamless. Uhlobo F – i-furnace, kodwa i-welding, uhlobo E – i-resistance welding. Yiyo yonke loo nto. Le yindlela elula yokufumanisa ukuba umbhobho awunamthungo okanye i-ERW.
Icebiso: I-ASTM A53 Grade B ithandwa kakhulu kunezinye ii-grade. Ezi pipes zingaba zeze ngaphandle kokwambathiswa, okanye zingagalelwa okanye zifakwe i-hot-dip galvanised kwaye zenziwe kusetyenziswa inkqubo yokwenziwa edibeneyo okanye engenamthungo. Kwicandelo leoyile negesi, ii-A53 pipes zisetyenziselwa ulwakhiwo kunye nosetyenziso olungengolubalulekanga.
Ukuba ufuna ulwazi oluthe kratya malunga nale projekthi, nceda unxibelelane nathi malunga nemeko yangoku, ulwazi loqhagamshelwano lweqela leprojekthi, njl.