I-ERW yipayipi edibeneyo ye-welding-straight seam exhathisayo rhoqo; i-LSAW yipayipi edibeneyo ye-arc welding-straight seam engaphantsi komhlaba; zombini zezemibhobho edibeneyo ye-straight seam, kodwa inkqubo yokudibanisa kunye nokusetyenziswa kwazo zombini zahlukile, ngoko azinakubonisa imibhobho edibeneyo ye-straight seam yodwa. Imibhobho edibeneyo ye-SSAW-spiral welding-spiral ixhaphake kakhulu.

Umahluko kunye nokusetyenziswa kwemibhobho yentsimbi ye-ERW, i-LSAW kunye ne-SSAW

I-straight seam high frequency (ipayipi yentsimbi ye-ERW) yahlulwe ngokwe-induction welding kunye ne-contact welding ngokweendlela ezahlukeneyo ze-welding. Isebenzisa ii-hot-rolled wide coils njengezinto eziluhlaza. Emva kokugoba kwangaphambili, ukwakheka okuqhubekayo, ukuwelda, unyango lobushushu, ukuncamathisela, ukulungisa, ukusika, ineengenelo ze-welds ezimfutshane, ukuchaneka okuphezulu, ubukhulu bodonga obufanayo, umgangatho olungileyo womphezulu kunye noxinzelelo oluphezulu xa kuthelekiswa ne-spiral. Nangona kunjalo, ingxaki kukuba kuphela iipayipi ezibhityileyo ezinobubanzi obuncinci nobuphakathi ezinokuthi ziveliswe. I-Fusion, iziphene ezifana nokugqwala. Iindawo ezisetyenziswa kakhulu ngoku ziigesi zendalo zasezidolophini kunye nokuthuthwa kwemveliso yeoyile ekrwada.

Ukuwelda kwe-arc engaphantsi komhlaba ethe tye (umbhobho wentsimbi we-LSAW) kuveliswa ngokusebenzisa ipleyiti enye ephakathi netyebileyo njengezinto eziluhlaza, ukucinezela (ukuqengqa) ipleyiti yentsimbi kumatshini wokubumba okanye wokwenza, ukuwelda kwe-arc engaphantsi komhlaba emacala amabini, kunye nokwandisa ububanzi. Imveliso egqityiweyo inoluhlu olubanzi lweenkcazo, ubulukhuni obuhle bokuwelda, i-plasticity, ukufana kunye noxinano, kwaye ineenzuzo zobubanzi obukhulu bombhobho, udonga olutyebileyo lombhobho, ukumelana noxinzelelo oluphezulu, ukumelana nobushushu obuphezulu kunye nokumelana nokugqwala. Xa kwakhiwa imibhobho yeoyile negesi enamandla aphezulu, ukuqina okuphezulu, umgangatho ophezulu, imibhobho yentsimbi efunekayo ikakhulu yi-arc engaphantsi komhlaba ethe tye enobubanzi obukhulu. Ngokomgangatho we-API, kwimibhobho emikhulu yeoyile negesi, xa kudlula kwiindawo zeKlasi 1 kunye neKlasi 2 (ezifana neendawo zeentaba, ulwandle, kunye neendawo zasezidolophini ezinabantu abaninzi), i-arc engaphantsi komhlaba ethe tye yeyona ndlela ikhethiweyo yombhobho. Ngokweendlela ezahlukeneyo zokwenziwa, inokwahlulwa ibe: U0E/JCOE/HME.

Ukuwelda kwe-arc engaphantsi komhlaba (ipayipi yentsimbi ye-SSAW) kuthetha ukuba xa uqengqa umbhobho, ulwalathiso lwawo oluya phambili lukwi-engile (ehlengahlengiswayo) kumgca osembindini wombhobho wokwenza, kwaye ukuwelda kwenziwa ngexesha lokwenziwa, kwaye ukuwelda kwawo kwenza umgca ojikelezayo. Inzuzo kukuba inkcazelo efanayo inokuvelisa imibhobho yentsimbi enobubanzi obahlukeneyo, izinto eziluhlaza zinoluhlu olubanzi lokuzivumelanisa nezimo, ukuwelda kunokuphepheka uxinzelelo oluphambili, kwaye uxinzelelo lulungile. Ingxaki kukuba ubungakanani bejometri abulunganga. Ubude bokuwelda bude kunobo bomthungo othe tye. Imifantu, ii-pores, ukufakwa kwe-slag kunye nokuphambuka kwe-welding kuyenzeka. Kwiimpazamo zokuwelda, uxinzelelo lokuwelda lukwimeko yokuxinezeleka okuxineneyo.

Iinkcukacha zoyilo lwemibhobho ye-oyile negesi ngokubanzi zithi i-spiral submerged arc ingasetyenziswa kuphela kwiindawo ze-Class 3 kunye ne-Class 4. Emva kokuphucula inkqubo kwamanye amazwe, izinto ezisetyenzisiweyo zitshintshwa ngamapleyiti entsimbi ukuze kwahlulwe ukwakheka kunye nokudityaniswa. Emva kokudityaniswa kwangaphambili kunye nokuchaneka, ububanzi bokudityaniswa buya kwanda emva kokudityaniswa okubandayo. Umgangatho wokudityaniswa usondele kumbhobho we-UOE.
Okwangoku, akukho nkqubo injalo eTshayina. Le yindlela yokuphucula umzi-mveliso wethu. Umbhobho we-"West-East Gas Transmission" usaveliswa ngokwenkqubo yesiqhelo, kodwa ububanzi bomphetho wombhobho buye bandiswa.
I-United States, iJapan kunye neJamani ngokubanzi ziyala ukusebenzisa i-SSAW kwaye zikholelwa ukuba umgca ophambili akufanele usebenzise i-SSAW.
IKhanada ne-Itali zisebenzisa i-SSAW kancinci, kwaye iRashiya isebenzisa i-SSAW ngobuninzi obuncinci. Baye baqulunqa iimeko ezongezelelweyo ezingqongqo kakhulu. Ngenxa yezizathu zembali, uninzi lwee-trunk lines zasekhaya zisasebenzisa i-SSAW. Izinto eziluhlaza zitshintshwa zibe yipleyiti yentsimbi ukuze zihlukaniswe kwaye zifakwe i-welding. Emva kokuwelda kwangaphambili kunye nokuchaneka, ububanzi bokuwelda buya kwandiswa emva kokuwelda okubandayo. Umgangatho wokuwelda usondele kumbhobho we-UOE.
Umbhobho odityanisiweyo we-ERW straight seam welded usetyenziswa ngokubanzi njenge-wire casing kushishino lwamandla. Iimpawu zokusebenza: Uvavanyo lwe-100% lwe-ultrasonic lwezinto ezidityanisiweyo luqinisekisa umgangatho wangaphakathi womzimba wombhobho; akukho nkqubo yokucheba idiski evulekileyo, kwaye izinto ezidityanisiweyo azinamingxunya mininzi kunye nemikrwelo; umbhobho ogqityiweyo emva kokususwa koxinzelelo ngokusisiseko awunaxinzelelo olushiyekileyo; i-weld imfutshane kwaye amathuba okuba neziphene mancinci; inokuthutha igesi yendalo emanzi emuncu; emva kokwandiswa kobubanzi, ukuchaneka kobukhulu bejometri yombhobho wentsimbi kuphezulu; i-welding yenziwa kumgca othe tye kwindawo ethe tye emva kokuba ukwenziwa kugqityiwe, ngoko ke ukungalungelelani, ukuvulwa komthungo, kunye nobubanzi bombhobho kulawulwa kakuhle, kwaye umgangatho we-welding ugqwesile. Imigangatho esebenzisekayo yemveliso: API 5L, API 5CT, ASTM, EN10219-2, GB/T9711, 14291-2006 kunye neminye imigangatho yamva nje. Iindidi zentsimbi yemveliso ziquka: GRB, X42, X52, X60, X65, X70, J55, K55, N80, L80, P110, njl. Ezi mveliso zisetyenziswa kakhulu kwioyile, igesi yendalo, igesi yamalahle, imigodi yamalahle, oomatshini, umbane, ukuqokelela kunye nezinye iinjongo. Izixhobo zobuchwepheshe benkqubo eziphucukileyo: ezifana nokubumba i-W-FF, ukuwelda kwe-induction eqinileyo ephezulu, ukufunyanwa kweziphene ze-ultrasonic, ukufunyanwa kweziphene ze-magnetic flux leakage, kunye nezixhobo zovavanyo eziphezulu: ezifana nohlalutyo lwe-metallographic, umvavanyi wobunzima beVickers, umatshini wovavanyo lwempembelelo, i-spectrum analyzer, umatshini wovavanyo lwe-universal kunye nezinye izixhobo. Ezi mveliso zithunyelwa eMzantsi Melika, eMntla Melika, kwiManyano yaseYurophu, eMzantsi-mpuma Asia nakwezinye iindawo. Kwiminyaka edlulileyo, ziye zamkelwa kakuhle ngabathengi kwihlabathi liphela.

Inkampani yethu ibonelelaEN10210S235JRH, S275JOH, S275J2H, S355JOH,S355J2H, S355K2H, kunye neenkcukacha eziqala kububanzi obungaphandle obuyi-219-1216, ubukhulu bodonga obuyi-6-40, kunye newaranti yokuqala yefektri. Abathengi kwihlabathi liphela bamkelekile ukuba bathenge.