Welded Chitoliro Njira

Electric Resistance Welding Process (ERW)

Chitoliro chachitsulo Pokana kuwotcherera, mapaipi amapangidwa ndi kutentha, ndi kuzizira kupanga pepala lachitsulo chathyathyathya mu geometry ya cylindrical. Mphamvu yamagetsi imadutsa m'mphepete mwa silinda yachitsulo kuti itenthetse chitsulo ndikupanga mgwirizano pakati pamphepete mpaka pamene amakakamizika kukumana. Panthawi ya REG, zinthu zodzaza zitha kugwiritsidwanso ntchito. Pali mitundu iwiri ya kuwotcherera kukana: kuwotcherera kwanthawi yayitali komanso kuwotcherera kozungulira kozungulira.

Kufunika kowotcherera kothamanga kwambiri kumachokera ku chizolowezi cha zinthu zowotcherera zocheperako zomwe zimachita dzimbiri, kung'ambika kwa mbedza, komanso kusalumikizana bwino. Chifukwa chake, zotsalira zophulika zankhondo zotsika pafupipafupi sizigwiritsidwanso ntchito kupanga mapaipi. Njira yothamanga kwambiri ya ERW imagwiritsidwabe ntchito popanga machubu. Pali mitundu iwiri ya machitidwe apamwamba kwambiri a REG. Kuwotcherera kwanthawi yayitali komanso kuwotcherera pafupipafupi ndi mitundu yowotcherera yothamanga kwambiri. Mu kuwotcherera kwanthawi yayitali, kuwotcherera komweko kumatumizidwa kuzinthu kudzera pa koyilo. Koyiloyo simakumana ndi chitoliro. Mphamvu yamagetsi imapangidwa mu chubu ndi maginito ozungulira chubu. Pazowotcherera pafupipafupi kwambiri, magetsi amaperekedwa kuzinthuzo kudzera pazolumikizana pamzere. Mphamvu zowotcherera zimayikidwa mwachindunji ku chitoliro, zomwe zimapangitsa kuti ntchitoyi ikhale yabwino. Njirayi nthawi zambiri imakonda kupanga mapaipi okhala ndi mainchesi akulu komanso makulidwe a khoma.

Mtundu wina wa kukana kuwotcherera ndi kasinthasintha kukhudzana gudumu kuwotcherera ndondomeko. Panthawi imeneyi, mphamvu yamagetsi imafalikira kudzera pa gudumu lolumikizana mpaka kumalo otsekemera. Gudumu lolumikizana limapanganso mphamvu yofunikira pakuwotcherera. Kuwotcherera kwa Rotary kumagwiritsidwa ntchito pazinthu zomwe sizitha kuthana ndi zopinga mkati mwa chitoliro.

Electric Fusion Welding Process (EFW)

Njira yowotcherera yamagetsi imatanthawuza kuwotcherera kwa ma elekitironi kwa mbale yachitsulo pogwiritsa ntchito kuthamanga kwambiri kwa mtengo wa electron. Mphamvu yamphamvu ya kinetic ya mtengo wa elekitironi imasinthidwa kukhala kutentha kuti itenthetse chogwirira ntchito kuti chipange msoko wowotcherera. Malo omwe amawotcherera amathanso kutenthedwa kuti asawonekere. Mapaipi owotcherera amakhala olimba kwambiri kuposa mapaipi opanda msoko ndipo, ngati apangidwa mochuluka momwemo, amawononga ndalama zochepa. Makamaka ntchito kuwotcherera mbale zosiyanasiyana zitsulo kapena mkulu mphamvu kachulukidwe kuwotcherera, zitsulo welded mbali akhoza mofulumira usavutike mtima ndi kutentha kwambiri, kusungunuka zitsulo zonse refractory ndi aloyi.

Njira Yowotcherera Arc (SAW)

Kuwotcherera kwa arc pansi pamadzi kumaphatikizapo kupanga arc pakati pa waya wamagetsi ndi chogwirira ntchito. Mtsinje umagwiritsidwa ntchito popanga gasi woteteza ndi slag. Pamene arc imayenda motsatira msoko, kutuluka kwakukulu kumachotsedwa kudzera muzitsulo. Chifukwa arc imakutidwa kwathunthu ndi kusanja kwa flux, nthawi zambiri imakhala yosawoneka panthawi yowotcherera, ndipo kutayika kwa kutentha kumakhalanso kotsika kwambiri. Pali mitundu iwiri ya njira zowotcherera za arc zomizidwa m'madzi: njira yowotcherera yolowera pansi pamadzi komanso njira yowotcherera ya arc yozungulira.

Mu kuwotcherera kwa arc kwautali, m'mphepete mwa mbale zachitsulo zimapindidwa ndi mphero kuti apange mawonekedwe a U. Mphepete mwa mbale zooneka ngati U zimawotchedwa. Mapaipi opangidwa ndi njirayi amatha kukulitsa ntchito kuti athetse kupsinjika kwamkati ndikupeza kulolerana koyenera.

M'mizere yozungulira ya arc kuwotcherera, ma weld seams amakhala ngati helix kuzungulira chitoliro. Munjira zonse zowotcherera nthawi yayitali komanso zozungulira ukadaulo womwewo umagwiritsidwa ntchito, kusiyana kokha ndi mawonekedwe ozungulira a seams mu kuwotcherera kozungulira. Njira yopangira ndikugudubuza chingwe chachitsulo kuti njira yozungulira ipange ngodya yokhala ndi ma radial a chubu, mawonekedwe, ndi weld kuti mzere wowotcherera ugonere mozungulira. Choyipa chachikulu cha njirayi ndi kusauka kwakuthupi kwa chitoliro komanso kutalika kwapakatikati komwe kungayambitse kupanga zolakwika kapena ming'alu.