Kuwotcherera kwa Adiabatic ndi njira yotchuka yomwe imagwiritsidwa ntchito m'mafakitale osiyanasiyana komwe kumafunika kulumikizana kolondola komanso kogwira mtima kwa zitsulo. Komabe, chimodzi mwazovuta zazikulu mu njirayi ndikupanga kutentha kwambiri, komwe kungakhudze kulimba kwa cholumikizira chowotcherera. Kuti athetse vutoli, kuziziritsa kwa adiabatic weld mwachangu komanso mosavuta kwakhala yankho lodalirika. M'nkhaniyi, tikambirana za mawonekedwe ndi ubwino wa njira yoziziritsirayi ndikuwunika zinthu zomwe zimathandiza kuti izigwiritsidwe ntchito.
Kuziziritsa mwachangu komanso mosavuta kwa adiabatic weld kumachepetsa kwambiri nthawi yozizira yomwe imafunika m'dera lolumikizidwa. Kutentha kochulukirapo komwe kumachitika panthawi yolumikizira kumachotsedwa mwachangu pogwiritsa ntchito ukadaulo wapadera woziziritsira, kuonetsetsa kuti cholumikizira cholumikizidwacho chili bwino komanso champhamvu. Njira yoziziritsirayi imapereka zabwino zingapo monga kuwonjezeka kwa ntchito, kuchepa kwa kusokonekera kwa chivundikiro pambuyo pa kulumikiza, kukweza khalidwe lonse la njira yolumikizira, komanso chitetezo cha wolumikizira.
Chinthu chimodzi chomwe chimapangitsa kuti kuziziritsa kuziziritse mwachangu komanso mosavuta kwa adiabatic welding ndi Welding Insulated Gas Cylinders. Silindayi imagwiritsa ntchito kapangidwe kake ka magawo awiri, komwe kamapangidwa ndi thanki yamkati ndi thanki yakunja, ndipo ili ndi gawo loteteza kutentha. Pogwiritsa ntchito zipangizo zoteteza kutentha za magawo ambiri kuti zisunge vacuum yambiri, imagwiritsidwa ntchito ponyamula ndi kusunga mpweya, nayitrogeni yamadzimadzi, argon yamadzimadzi ndi zakumwa zina.
Masilinda a gasi oteteza ku welding amapezeka m'mitundu yosiyanasiyana kuti akwaniritse zofunikira zosiyanasiyana zogwiritsira ntchito. Malinga ndi kuthamanga kwa valavu yotetezera, imagawidwa m'magulu awiri: kuthamanga kwapakati (MP) ndi kuthamanga kwambiri (P). Kuphatikiza apo, pali mtundu wina wa kuthamanga kwambiri (VEP), womwe nthawi zambiri umagwiritsidwa ntchito pogwiritsira ntchito kuthamanga kwapakati ndi kuthamanga kwambiri. Mtundu uwu umatsimikizira kuti masilinda amatha kupereka bwino mpweya wamadzimadzi ndi wa gasi pazosowa zosiyanasiyana zowotcherera.
Pali ubwino wambiri wogwiritsa ntchito masilinda a gasi oteteza kutentha omwe ali ndi welded. Kapangidwe kake ka magawo awiri okhala ndi kutentha koteteza kutentha kumathandiza kusunga kutentha kwa mpweya wosungidwa, kupewa kusintha kulikonse kosafunikira komwe kungakhudze njira yowotcherera. Vacuum yayitali yomwe imasungidwa mkati mwa silinda imawonjezera kuyera ndi kukhazikika kwa madzi osungidwa, zomwe zimapangitsa kuti ntchito zowotcherera zikhale zodalirika komanso zogwirizana.
Kuphatikiza apo, kuziziritsa mwachangu komanso kosavuta komwe kumachitika ndi izi kumachepetsa kwambiri nthawi yogwira ntchito pakati pa ntchito zowotcherera. Kutentha kochulukirapo kukatha msanga, owotcherera amatha kupita patsogolo mwachangu, zomwe zimawonjezera ntchito yonse. Nthawi yoziziritsa yochepa imachepetsanso kusokonekera kwa wowotcherera pambuyo pa wowotcherera kuti pakhale zotsatira zenizeni zowotcherera. Kuphatikiza apo, njira yoziziritsirayi imachepetsa kuwonekera kwa wowotcherera kutentha kwambiri, ndikuwonjezera chitetezo cha wowotcherera.
Pomaliza, kuziziritsa mwachangu komanso mosavuta kwa ma weld adiabatic ndikofunikira kuti pakhale ma weld apamwamba popanda kuwononga umphumphu ndi mphamvu ya ma joint. Ma silinda a gasi otetezedwa ndi welded ndi zinthu zomwe zimapangitsa kuti njira yoziziritsirayi izi ikhale yopangidwa ndi zigawo ziwiri, kutetezera kutentha, komanso kukonza vacuum yambiri. Kutha kwake kusunga ndikunyamula mpweya wamadzimadzi ndi wa gasi kumapangitsa kuti ikhale yoyenera kugwiritsa ntchito mitundu yosiyanasiyana ya weld. Kugwiritsa ntchito njira zosavuta komanso zoziziritsira mwachangu sikungowonjezera phindu, komanso kumawonjezera zotsatira zonse za weld ndikuwonetsetsa kuti ma weld ali otetezeka.
Nthawi yotumizira: Julayi-17-2023
