M'banja la flange, zowotcherera zosalala zakhala chinthu chofunikira kwambiri pamapaipi otsika chifukwa cha kapangidwe kake kosavuta komanso mtengo wake wachuma. Flat welding flange, yomwe imadziwikanso kuti lap welding flange, ili ndi kukula kwa dzenje lamkati lomwe limafanana ndi kukula kwa payipi, mawonekedwe osavuta akunja, komanso opanda ma flange ovuta, zomwe zimapangitsa kuti kukhazikitsa kwake kukhale kosavuta.

Flange kuwotcherera lathyathyathya amagawidwa mitundu iwiri: mbale lathyathyathya kuwotcherera ndi khosi lathyathyathya kuwotcherera. mbale mtundu lathyathyathya kuwotcherera flange dongosolo ndi losavuta ndi oyenera kachitidwe payipi ndi milingo m'munsi kuthamanga ndi zinthu wofatsa ntchito, monga kotunga madzi boma ndi ngalande, HVAC, etc. The khosi lathyathyathya kuwotcherera flange lakonzedwa ndi khosi lalifupi, amene osati kumawonjezera kukhwima ndi mphamvu ya flange, komanso bwino katundu wake mphamvu yonyamula katundu, kulipangitsa kuti athe kupirira payipi malo apamwamba. Amagwiritsidwa ntchito kwambiri polumikizana ndi mapaipi apakati komanso otsika kwambiri m'mafakitale monga mafuta, mankhwala, ndi gasi.

Njira yowotcherera yopangira ma flanges amatengera ma welds a fillet, omwe amakonza chitoliro ndi flange ndi ma welds awiri. Ngakhale kuti mtundu uwu wa weld seam sungathe kudziwika ndi X-ray, n'zosavuta kugwirizanitsa panthawi yowotcherera ndi kusonkhanitsa, ndipo imakhala ndi mtengo wotsika. Choncho, wakhala akugwiritsidwa ntchito nthawi zambiri pamene kusindikiza sikufunika. Kupanga ma flanges owotcherera kumatsata miyezo ingapo yamayiko, monga HG20593-2009, GB/T9119-2010, ndi zina zotero, kuwonetsetsa kuti zinthuzo zili bwino komanso zikuyenda bwino.