Pipeline weld kuyendera ndondomeko

Kuthamanga chitoliro weld maonekedwe zofunika zofunika

Pamaso pa kukakamizidwapayipikuyesa kosawonongeka, kuyang'ana kowoneka kwa wolamulira woyendera weld kuyenera kukwaniritsa zofunikira.General amafuna kuthamanga chitoliro kuwotcherera maonekedwe ndi pamwamba khalidwe la olowa olowa ndi motere: kuwotcherera ayenera kuwoneka bwino mawonekedwe, m'lifupi mbali iliyonse m'mphepete bevel anaphimba 2mm yoyenera.Fillet weld mwendo kutalika ayenera kukwaniritsa zofunika kamangidwe, mlingo wa malamulo ang'onoang'ono mawonekedwe chinthu ayenera kukhala yosalala kusintha.

Wowotcherera olowa pamwamba salola ming'alu, kusowa maphatikizidwe, porosity, slag, spatter alipo.Kutentha kwa mapangidwe a mapaipi ndi pansi pa -29 madigiri, wolamulira wa chitsulo chosapanga dzimbiri cholimba ndi mapaipi azitsulo a aloyi amakhala okulirapo pamwamba, osadulidwa.Kuwotcherera chitoliro undercut zipangizo zina ayenera kukhala wamkulu kuposa kuya 0.5mm, mosalekeza undercut kutalika si upambana 100mm, ndi mbali zonse za weld undercut kukula pa 10 peresenti ya okwana kutalika weld.Weld pamwamba osachepera chitoliro pamwamba.Weld kulimbitsa, Ndipo osapitirira 3mm, (mpaka pazipita m'lifupi mwa kuwotcherera mfundo pa poyambira).Welded mfundo zolakwika mbali khoma makulidwe sayenera upambana 10% ndipo osapitirira 2mm.

Pamwamba pa kuyesa kosawononga

Pamwamba kuthamanga payipi NDT njira kusankha mfundo: chitoliro maginito chitsulo ayenera kugwiritsidwa ntchito maginito tinthu kuyezetsa;Chitsulo chosakhala ferromagnetic chiyenera kugwiritsidwa ntchito poyesa kulowa.Pali chizolowezi anachedwa akulimbana a mfundo welded, pamwamba ayenera sanali zowononga kuyezetsa kuzirala pambuyo kuwotcherera nthawi zina;Kutenthetsanso chizolowezi chophwanyika cha mfundo zowotcherera, pamwamba payenera kukhala pakuyezetsa kosawononga ndi chithandizo cha kutentha pambuyo pa weld kamodzi.

Kuwunika kwa Ray ndi kuyesa kwa ultrasonic

Kuwunika kwa ray ndi kuyezetsa kwa akupanga ndiye chandamale chachikulu cha chitoliro cholumikizana ndi matako ndi zida zapaipi zolumikizira mafupa.Njira za NDT zosankhidwa ndi zolemba zamapangidwe.Titaniyamu, aluminiyamu ndi aloyi ya aluminiyamu, zosakaniza zamkuwa ndi zamkuwa, zolumikizira zowotcherera kuti zizindikire ma nickel ndi nickel alloys, ndipo ziyenera kugwiritsidwa ntchito pozindikira ma radiation.Pali chizolowezi kuchedwetsa kuwotcherera ming'alu, ray ake anayendera ndi akupanga kuyezetsa ayenera pa nthawi inayake kuzirala pambuyo kuwotcherera.Pamene mutu wa chikwatu mkati mwa casing ali ndi girth weld, weld ayenera kugwira ntchito 100% ray kudziwika, ntchito zobisika angathe kuchitidwa pambuyo kudutsa mayeso kuthamanga.Kulimbitsa mphete kapena mbale mbale ataphimbidwa ndi zolumikizira welded adzakhala 100% ya kuyendera chitoliro-ray, pambuyo podutsa ndiye yokutidwa.Kuwunika zomwe zimaperekedwa pakuwotcherera kwa msoko wapakati, kuyezetsa kosawononga kuyenera kuchitidwa pambuyo poyang'ana zowonera, ma radiography ndi kuyezetsa akupanga kuyenera kuchitidwa pambuyo pa kuyesedwa kosawononga, kuyesa kuyesedwa kwa weld kungapitirire pambuyo poyesa kuyenerera.


Nthawi yotumiza: Sep-24-2021