Kuwotcherera kwa mapaipi achitsulo chosapanga dzimbiri nthawi zambiri kumakhala ndi kuwotcherera kwa mizu, kuwotcherera kudzaza ndi kuwotcherera chivundikiro. Kuwotcherera pansi kwa chitoliro chosapanga dzimbiri ndi gawo lovuta kwambiri la kuwotcherera kwa chitoliro chosapanga dzimbiri. Sizokhudzana ndi ubwino wa polojekitiyi, komanso zokhudzana ndi momwe polojekiti ikuyendera. Pakalipano, kuwotcherera kumbuyo kwa chitoliro chosapanga dzimbiri kumagawidwa m'njira ziwiri: kudzaza kumbuyo ndi kudzaza kwa non-argon. Chitetezo chakumbuyo chodzaza ndi Argon chimagawidwa kukhala waya wolimba + njira ya TIG ndi waya wolimba + TIG + mapepala osungunuka m'madzi; kumbuyo popanda chitetezo chodzaza ndi argon chimagawidwa muzitsulo zopangira ma waya ndi ndodo yowotcherera (waya wokutira) mothandizira kuwotcherera kwa TIG.
Kuwotcherera pansi kwachitsulo chosapanga dzimbiri nthawi zambiri kumatenga njira ya TIG. Malinga ndi momwe zilili pamalowa, titha kugwiritsa ntchito njira zinayi zotsatirazi zowotcherera pansi.
01. Njira yotsekera mpweya wabwino ndi chitetezo pogwiritsa ntchito matabwa otchinga kumbuyo (ndiko kuti, waya wowotcherera wolimba + TIG)
Pamene chitoliro chachitsulo chosapanga dzimbiri chimapangidwa kale, cholumikizira chowotcherera chimatha kuzunguliridwa ndi kuwotcherera, ndipo mpweya wabwino ndi wosavuta. Panthawi imeneyi, mbale yotchinga imagwiritsidwa ntchito kutsekereza ndi kutulutsa mpweya mbali zonse za kuwotcherera olowa mu payipi kuteteza kuwotcherera pansi, ndipo nthawi yomweyo, mbali yakunja imasindikizidwa ndi nsalu zomatira. kutsekereza.
Pamene kuwotcherera, ndondomeko ventilating pasadakhale ndi kuyimitsa mpweya kenako ayenera anatengera. Nsalu yomatira yakunja imang'ambika ndikuwotcherera. Popeza mbale yotsekera imapangidwa ndi mphira ndi chitsulo choyera, sikophweka kuonongeka, kotero njira yowotcherera iyi imatha kuonetsetsa kuti mkati mwa weld. Wodzazidwa ndi mpweya wa argon ndikuwonetsetsa chiyero chake, kuti atsimikizire kuti chitsulo mkati mwa weld sichikhala ndi oxidized, ndikuwonetsetsa kuti kuthandizira kwa weld.
02. Gwiritsani ntchito mapepala osungunuka okha kapena mapepala osungunuka ndi bolodi lotsekera potsekereza ndi kuteteza mpweya wabwino (ie waya wokhazikika + TIG + mapepala osungunuka m'madzi)
Pamene doko lokhazikika la chitoliro chosapanga dzimbiri laikidwa ndi kuwotcherera, zimakhala zovuta kutulutsa mpweya mkati, ndipo mbali zina zimakhala zosavuta kutsekereza. Pamenepa, mapepala osungunuka ndi madzi + otsekera angagwiritsidwe ntchito kusindikiza. Ndiko kuti, mbali yomwe imakhala yosavuta kutulutsa mpweya komanso yosavuta kuchotsa imasindikizidwa ndi bolodi yotchinga, ndipo mbali yomwe siili yophweka kutulutsa mpweya komanso yovuta kuchotsa bolodi yotchinga imatsekedwa ndi pepala losungunuka ndi madzi.
Pamene kuwotcherera zitsulo zosapanga dzimbiri doko lokhazikika, nthawi zambiri, sipadzakhala mpweya wabwino mbali zonse za weld. Panthawiyi, momwe mungatsimikizire kutetezedwa kwa argon kudzaza mkati mwa weld kumakhala kovuta. Pomanga kwenikweni pamalowa, timagwiritsa ntchito madzi osungunuka Njira yosindikizira ndi pepala, mpweya wabwino kuchokera pakati pa seam weld, ndi kumata kunja ndi nsalu zomatira bwino kuthetsa mavuto pamwamba.
Pamene pepala losungunuka ndi madzi limagwiritsidwa ntchito kusindikiza mpweya wabwino, popeza mpweya wabwino umachokera pakatikati pa msoko wowotcherera, pomaliza kusindikiza, chubu cha mpweya chiyenera kutulutsidwa mwamsanga, ndipo argon yotsala mkati iyenera kugwiritsidwa ntchito kuteteza, ndipo pansi ayenera kutsirizidwa mwamsanga ndi kukamwa kutsekedwa.
Ndi njirayi, ziyenera kudziwidwa kuti pepala losungunuka m'madzi liyenera kukhala lopangidwa ndi zigawo ziwiri, ndipo liyenera kuyikidwa bwino, apo ayi pepala losungunuka madzi lidzawonongeka mosavuta ndikugwa, ndipo weld wamkati adzataya chitetezo cha. argon mpweya, ndi okosijeni zidzachitika, kuchititsa weld kudula ndi kutsegulidwanso. Kuwotcherera sikungatsimikizire mtundu wa kuwotcherera, komanso kumakhudza kwambiri nthawi yomanga, kotero kuyang'anitsitsa kuyenera kuchitika pamaso pa kuwotcherera, ndi pepala losungunuka madzi liyenera kuikidwa.
M'malo ambiri omangira, tatengera njira yowotcherera iyi kuti ichirikidwe, ubwino wake ukhoza kutsimikiziridwa bwino, komanso ndizovuta kumanga, choncho otchera mosamala ndi aluso ayenera kusankhidwa pa ntchitoyi.
03. Mbali yakumbuyo sikutetezedwa ndi mpweya wa argon, ndipo njira yolumikizira waya + TIG imagwiritsidwa ntchito.
Njirayi yakhala ikugwiritsidwa ntchito m'dziko lathu kwa zaka zingapo, ndipo mawaya owotcherera a flux-cored monga E308T1-1, E308LT1-1, E309T1-1, E309LT1-1, 347T1-1, E316T1-1, E316LT1-1 apangidwa. , ndipo zakhala zikugwiritsidwa ntchito m'munda Kuwotcherera kwapindula bwino pazachuma.
Popeza mbali yakumbuyo sikudzazidwa ndi argon, ubwino wake ndi wodziwikiratu, monga momwe zimakhalira bwino, zosavuta, komanso zotsika mtengo, ndipo ndizoyenera kuyika pa malo omanga. Komabe, chifukwa cha mawonekedwe ake, waya wowotcherera wa flux-cored ali ndi zofunika kwambiri zowotcherera pakugwira ntchito. Kuthamanga kwake kwa mawaya kumathamanga komanso kulondola kwa mawaya ndipamwamba, kotero n'zovuta kuzidziwa. Owotcherera ayenera kukhala ophunzitsidwa mwapadera ndi luso asanayambe kutenga nawo mbali pa ntchito yowotcherera. Ku Nanjing Yangba ndi malo omanga akunja, tathana bwino ndi vuto lomwe argon silingathe kutulutsa mpweya padoko la msonkhano ndikukonza doko pogwiritsa ntchito njirayi.
04. Mbali yakumbuyo sikutetezedwa ndi mpweya wa argon, ndipo waya wokutira wowotcherera (waya wodzitchinjiriza wodziteteza) + TIG imagwiritsidwa ntchito.
M'zaka za m'ma 1990, Kobelco ndi makampani ena ku Japan anapanga mawaya owotcherera pansi. M'zaka zaposachedwapa, dziko langa lapanganso zitsulo zosapanga dzimbiri pansi kuwotcherera mawaya (ndiko kuti, TACHIMATA mawaya kuwotcherera, monga TGF308, TGF308L, TGF309, TGF316L, TGF347, etc.) tagwiritsa ntchito bwino njira iyi pakukulitsa mphamvu ndikusintha ntchito ya Wupec.
Njira yodzitchinjiriza ya waya wosapanga dzimbiri + TIG ndi njira yowotcherera kumbuyo imatetezedwa ndi chitsulo pakati pa slag yomwe imapangidwa ndi kusungunuka kwa waya ndi zinthu zake za aloyi, ndipo kutsogolo kumatetezedwa ndi argon, slag ndi aloyi zinthu. .
Mukamagwiritsa ntchito njirayi, mfundo zotsatirazi ziyenera kutsatiridwa: Panthawi yowotcherera, ngodya yoyenera pakati pa chogwiritsira ntchito, waya wowotcherera ndi chidutswa chowotcherera chiyenera kusungidwa. Malo abwino kumbuyo kwa mphuno yowotcherera ndi 70 ° -80 °, Ngodya ndi 15 ° -20 °; molondola kuwongolera kutentha kwa dziwe losungunuka, kusintha kutentha kwa dziwe losungunuka mwa kusintha ngodya pakati pa chogwirira chowotcherera ndi chowotcherera, kusintha liwiro la kuwotcherera, etc., kuti muwonetsetse kuti mawonekedwe a weld ndi okongola (m'lifupi ndi chimodzimodzi, palibe concave, Convexity ndi zolakwika zina);
Pa ntchito, panopa ayenera kukhala wamkulu pang'ono kuposa kuwotcherera olimba pachimake waya, ndi kuwotcherera chogwiririra ayenera kugwedezeka pang'ono kuti imathandizira kulekana kwa chitsulo chosungunuka ndi zokutira zosungunula, zomwe zimakhala zosavuta kuyang'ana dziwe losungunuka ndikuyang'anira ngati kulowa mkati. kumaliza; podzaza waya wowotcherera, ndi bwino kutumiza ku 1/2 ya dziwe losungunuka, ndikukankhira mkati pang'ono kuti mutsimikize kulowa kwa mizu ndikupewa kulowera;
Panthawi yowotcherera, waya wowotcherera uyenera kudyetsedwa ndi kutengedwa nthawi zonse, ndipo waya wowotcherera uyenera kukhala wotetezedwa ndi mpweya wa argon, kuti ateteze kutha kwa waya wowotcherera kuti asakhale oxidized komanso kukhudza momwe kuwotcherera; Kuwotcherera madontho kuyenera kukhala kotsetsereka kochepera 45 °, ndipo kuyenera kuyang'aniridwa pazowonongeka monga ma arc crater ndi ma shrinkage cavities potseka arc.
Waya wophimbidwa ndi kuwotcherera pansi, ndipo mpweya wa argon sugwiritsidwa ntchito mkati mwa weld. Ntchito yowotcherera ndi yosavuta komanso yachangu, yokhala ndi mawonekedwe apamwamba komanso otsika mtengo. Njira imeneyi ntchito kuwotcherera okwana 28 olowa ndi reworked mfundo, ndi mlingo wodutsa nthawi imodzi maganizo kuwotcherera ndi 100%), amene ali woyenera kukwezedwa wathu ndi ntchito.
Njira zinayi zomwe zili pamwambazi zowotcherera zitsulo zosapanga dzimbiri zili ndi ubwino ndi zovuta zawo. Pomanga kwenikweni, sitiyenera kuganizira za mtengo womanga wokha, komanso momwe kuwotcherera ndi kupititsa patsogolo ntchito yomanga molingana ndi momwe zilili pamalopo, ndikusankha njira yomanga yoyenerera.
Nthawi yotumiza: Mar-15-2023
