I-welding yemibhobho yensimbi engenasici idla ngokubandakanya i-root welding, i-welding yokuzalisa kunye ne-cover welding. I-welding ephantsi yombhobho wensimbi engenasici yeyona nto ibaluleke kakhulu kwi-welding yensimbi engenasici. Ayinxulumene kuphela nomgangatho weprojekthi, kodwa inxulumene nenkqubela phambili yeprojekthi. Okwangoku, i-welding ngasemva yepayipi yensimbi engenasici ihlukaniswe kwiinkqubo ezimbini: ukuzaliswa ngasemva kunye nokuzaliswa kwe-non-argon. Ukukhuselwa ngasemva kwe-Argon kuhlulwe kucingo oluqinileyo + inkqubo ye-TIG kunye nocingo oluqinileyo + TIG + inkqubo yephepha elinyibilikayo emanzini; umva ngaphandle argon-ezaliswe ukhuseleko yahlulwe flux-coreed ucingo backing kunye intonga welding (ucingo camera) backing TIG welding.
I-welding ephantsi yensimbi engenasici ihlala ithatha inkqubo ye-TIG. Ngokwemeko yokwenyani kwisiza, sinokusebenzisa ezi ndlela zine zilandelayo ze-welding ephantsi.
01. Indlela yokuthintela ukungena komoya kunye nokukhusela ngokusebenzisa iibhodi zokuvala ngasemva (oko kukuthi, ucingo oluqinileyo lwe-welding + TIG)
Xa umbhobho wensimbi engenasici ulungiselelwe ngaphambili, ukudibanisa i-welding ngokuqhelekileyo kunokuthi kujikelezwe kwaye kufakwe i-welded, kwaye i-ventilation ilula kakhulu. Ngeli xesha, ipleyiti yokuthintela ngokuqhelekileyo isetyenziselwa ukuvala kunye nokukhupha umoya kumacala omabini e-welding joint kwipayipi ukukhusela i-welding ephantsi, kwaye kwangaxeshanye, icala elingaphandle livalwe ngelaphu elincamathelayo. ukuvaleka.
Xa i-welding, inkqubo yokungenisa umoya kwangaphambili kunye nokumisa igesi kamva kufuneka yamkelwe. Ilaphu elincamathelayo langaphandle liyakrazulwa ngelixa li-welding. Ekubeni ipleyiti yokuthintela yenziwe ngerabha kunye nentsimbi emhlophe, akulula ukuba yonakaliswe, ngoko le ndlela ye-welding inokuqinisekisa kakuhle ngaphakathi kwe-weld. Ukuzaliswa ngegesi ye-argon kunye nokuqinisekisa ukucoceka kwayo, ukwenzela ukuba kuqinisekiswe ngokufanelekileyo ukuba isinyithi esingaphakathi kwi-weld asiyi-oxidized, kwaye siqinisekise umgangatho we-weld backing.
02. Sebenzisa kuphela iphepha elinyibilikayo okanye udibaniso lwephepha elinyibilikayo kunye nebhodi yokuthintela ukuthintela kunye nokukhusela umoya (oko kukuthi ucingo oluqinileyo lwe-welding + TIG + iphepha elinyibilikayo emanzini)
Xa i-port esisigxina yombhobho wensimbi engenasici ifakwe kwaye i-welded, kunzima ukukhupha umoya ngaphakathi, kwaye amanye amacala alula ukuwavimba. Kule meko, iphepha elinyibilikayo lamanzi + ipleyiti yokuthintela ingasetyenziselwa ukutywinwa. Oko kukuthi, icala ekulula ukukhupha umoya kwaye kulula ukulisusa livalwe ngebhodi yokuthintela, kwaye icala elingelula ukukhupha umoya kwaye kunzima ukususa ibhodi yokuthintela ivaliwe ngephepha elinyibilikayo emanzini.
Xa u-welding i-stainless steel port fixed port, kwiimeko ezininzi, akuyi kubakho umoya kumacala omabini e-weld. Ngeli xesha, indlela yokuqinisekisa ukukhuselwa kokuzaliswa kwe-argon ngaphakathi kwe-weld kuba yingxaki enzima. Kulwakhiwo lwangempela kwisiza, sisebenzisa i-soluble yamanzi Indlela yokutywinwa ngephepha, i-ventilating ukusuka kumbindi we-weld seam, kunye nokuncamathisela ngaphandle ngelaphu elinamathelayo lisonjululwe ngempumelelo ezi ngxaki zingasentla.
Xa iphepha elinyibilikayo lamanzi lisetyenziselwa ukutywina ukungena komoya, ekubeni i-ventilation ivela kumbindi we-weld seam, kwinkqubo yokutywinwa kokugqibela, ityhubhu yokungena umoya kufuneka ikhutshwe ngokukhawuleza, kwaye i-argon eseleyo ngaphakathi kufuneka isetyenziswe ukukhusela. kwaye umzantsi ufanele ugqitywe ngokukhawuleza kwaye nomlomo kufuneka uvalwe.
Ngale ndlela, kufuneka kuqatshelwe ukuba iphepha elinyibilikayo lamanzi kufuneka liphindwe kabini, kwaye kufuneka lifakwe kakuhle, ngaphandle koko iphepha elinyibilikayo lamanzi liya konakala ngokulula kwaye liwe, kwaye i-weld yangaphakathi iya kulahlekelwa ukukhuselwa. igesi ye-argon, kunye ne-oxidation iya kwenzeka, ibangela ukuba i-weld inqunywe kwaye ivulwe kwakhona. I-Welding ayinakuqinisekisa umgangatho we-welding, kodwa ichaphazela kakhulu ixesha lokwakha, ngoko kufuneka kuhlolwe ngokungqongqo phambi kwe-welding, kunye nephepha elinyibilikayo emanzini kufuneka lifakwe.
Kwiindawo ezininzi zokwakha, siye samkela le ndlela ye-welding yokuxhasa, umgangatho wayo unokuqinisekiswa ngokufanelekileyo, kwaye kunzima nokwakha, ngoko ke kufuneka kukhethwe abashicileli abanobuchule kunye nabanobuchule kulo msebenzi.
03. Icala elingasemva alikhuselwanga yi-argon gas, kwaye i-flux cored wire + inkqubo ye-TIG isetyenziswa.
Le ndlela isetyenziswe kwilizwe lethu iminyaka eliqela, kunye neengcingo ze-welding ezinjengo-E308T1-1, E308LT1-1, E309T1-1, E309LT1-1, 347T1-1, E316T1-1, E316LT1-1 ziye zaveliswa. , kwaye isetyenziswe kwintsimi I-welding iphumelele izibonelelo ezingcono zezoqoqosho.
Ekubeni i-back side ayigcwaliswanga nge-argon, izibonelelo zayo zicacile, ezifana nokusebenza okuphezulu, ukulula, kunye neendleko eziphantsi, kwaye ifanelekile ukufakwa kwindawo yokwakha. Nangona kunjalo, ngenxa yeempawu zayo zesakhiwo, i-flux-cored welding wire ineemfuno eziphezulu ze-welders ngexesha lokusebenza. Isantya sayo sokutya kweengcingo sikhawuleza kwaye ukuchaneka kokutya kocingo kuphezulu, ngoko ke kunzima ukuyiqonda. Abashiseli kufuneka baqeqeshwe ngokukhethekileyo kwaye babe nobuchule ngaphambi kokuba bathathe inxaxheba ekudibaniseni. E-Nanjing Yangba kunye neendawo zokwakha zangaphandle, siye sayicombulula ngempumelelo ingxaki yokuba i-argon ayikwazi ukungena umoya kwi-port yentlanganiso kunye nokulungisa ichweba ngokusebenzisa le ndlela.
04. Icala elingasemva alikhuselwanga yi-argon gas, kunye ne-coated welding wire (i-self-protected flux-cored welding wire) + inkqubo ye-TIG isetyenziswa
Ngeminyaka yoo-1990, iKobelco kunye nezinye iinkampani zaseJapan zavelisa iingcingo zokuwelda ezisezantsi. Kwiminyaka yakutshanje, ilizwe lam liye laphuhlisa intsimbi yentsimbi esezantsi yokuwelda (oko kukuthi, iingcingo ezigqunyiweyo zokuwelda, ezifana neTGF308, TGF308L, TGF309, TGF316L, TGF347, njl.) sisebenzise ngempumelelo le ndlela kulwandiso lwamandla kunye neprojekthi yenguqu yeWupec.
Indlela yokukhusela yocingo lwensimbi engenasici kunye nenkqubo ye-TIG kukuba i-weld yangasemva ikhuselwe yi-metallurgical reaction phakathi kwe-slag eyenziwa yi-welding wire melting kunye nezinto zayo ze-alloy, kwaye i-weld yangaphambili ikhuselwe yi-argon, i-slag kunye ne-alloy elements. .
Xa usebenzisa le nkqubo, le ngongoma yokusebenza ilandelayo kufuneka ihlawulwe ingqalelo: Ngexesha lenkqubo ye-welding, i-angle echanekileyo phakathi kwe-welding handle, i-welding wire kunye ne-welding piece kufuneka igcinwe. I-angle efanelekileyo ngasemva ye-welding handle nozzle yi-70 ° -80 °, i-angle yi-15 ° -20 °; lawula ngokufanelekileyo ubushushu bechibi elinyibilikisiweyo, utshintshe ubushushu bechibi elinyibilikisiweyo ngokutshintsha i-engile phakathi komqheba we-welding kunye ne-weldment, ukuguqula isantya se-welding, njl., ukwenzela ukuba kuqinisekiswe ukuba imilo ye-weld intle (ububanzi buyi-welding). efanayo, akukho concave, Convexity kunye nezinye iziphene);
Ngexesha lokusebenza, umsinga kufuneka ube mkhulu kancinane kunowokuwelda ucingo oluluqilima, kwaye isiphatho sokuwelda kufuneka sishukunyiswe kancinci ukukhawulezisa ukwahlulwa kwentsimbi enyibilikisiweyo kunye nokwaleka okutyhidiweyo, olulungele ukujonga ichibi elityhidiweyo kunye nokulawula ukuba ukungena gqiba xa ugcwalisa ucingo lwe-welding, kungcono ukuyithumela kwi-1/2 ye-pool etyhidiweyo, kwaye uyicinezele kancinci ngaphakathi ukuze uqinisekise ukungena kweengcambu kunye nokuthintela ukunyanzeliswa;
Ngethuba lenkqubo ye-welding, ucingo lwe-welding kufuneka lutyiswe kwaye lukhutshwe rhoqo, kwaye ucingo lwe-welding kufuneka luhlale luphantsi kokukhuselwa kwegesi ye-argon, ukwenzela ukuba kuthintelwe ukuphela kocingo lwe-welding ekubeni lufakwe i-oxidized kwaye luchaphazela umgangatho we-welding; I-spot welding kufuneka ifakwe kwi-slope ethambileyo ye-45 °, kwaye ingqalelo kufuneka ihlawulwe kwiziphene ezifana ne-arc craters kunye ne-shrinkage cavities xa uvala i-arc.
I-welding wire egqunyiweyo isetyenziselwa ukuwelda ezantsi, kwaye igesi ye-argon ayisetyenziswanga ngaphakathi kwi-weld. Ukusebenza kwe-welder kulula kwaye ngokukhawuleza, kunye neempawu zokusebenza kakuhle kunye neendleko eziphantsi. Le ndlela isetyenziselwa ukudibanisa i-weld ye-28 edibeneyo kunye ne-joints reworked, kunye nesantya sokudlula kwi-welding yexesha elilodwa yi-100%), efanelekile ukukhuthazwa kunye nokusetyenziswa kwethu.
Ezi ndlela zine zingentla zentsimbi ye-stainless welding zineenzuzo zazo kunye nokungalunganga. Kulwakhiwo lwangempela, asifanele siqwalasele kuphela iindleko zokwakha, kodwa kunye nomgangatho we-welding kunye nenkqubela phambili yokwakha ngokwemiqathango ethile kwisayithi, kwaye ukhethe inkqubo efanelekileyo yokwakha.
Ixesha lokuposa: Mar-15-2023
