Kuyerekeza chitetezo pakati pa chitoliro cha LSAW ndi chitoliro cha SSAW

Kupanikizika kotsalira kwa chitoliro cha LSAW kumayamba chifukwa cha kuzizira kosiyana.Kupsyinjika kotsalira ndi kupsinjika kwamkati kwa gawo lolingana popanda mphamvu yakunja.Kupsyinjika kotsaliraku kulipo m'zigawo zotentha zamagulu osiyanasiyana.Kukula kwa gawo lalikulu la zitsulo zamagulu ambiri, kumapangitsanso kupanikizika kotsalira.

Ngakhale kuti kupanikizika kotsalira kumakhala kokhazikika, kumakhalabe ndi zotsatira zina pa ntchito ya mamembala achitsulo pansi pa mphamvu yakunja.Mwachitsanzo, zingakhale ndi zotsatira zoipa pa deformation, bata ndi kukana kutopa.Pambuyo kuwotcherera, zophatikizika zosakhala zitsulo mu chitoliro cha LSAW zimakanikizidwa kukhala mapepala owonda, zomwe zimapangitsa kuti lamination.Kenako kuyanika kumawononga kwambiri magwiridwe antchito a chitoliro cha LSAW motsatira makulidwe ake, ndipo kung'ambika kwapakati kumatha kuchitika pomwe kuwotcherera kumachepa.Kupsyinjika kwanuko komwe kumachititsidwa ndi kuwotcherera shrinkage nthawi zambiri kumakhala kokulirapo kuposa komwe kumachitika chifukwa cha katundu.Kuphatikiza apo, chitoliro cha LSAW chidzakhala ndi ma T-welds ambiri, kotero kuthekera kwa zolakwika zowotcherera kumakhala bwino kwambiri.Komanso, kuwotcherera yotsalira kupsyinjika pa T-weld ndi lalikulu, ndi weld zitsulo zambiri mu mkhalidwe wa azithunzithunzi atatu kupsyinjika, amene kumawonjezera mwayi ming'alu.

The kuwotcherera msoko wa spiral submerged arc welded chitoliro amagawidwa mu mzere ozungulira, ndipo welds ndi yaitali.Makamaka pamene kuwotcherera pansi zinthu zazikulu, kuwotcherera amachoka kupanga mfundo pamaso kuzirala, amene n'zosavuta kubala kuwotcherera ming'alu otentha.Mayendedwe a ng'anjo amafanana ndi kuwotcherera ndipo amapanga ngodya yophatikizika ndi nsonga ya chitoliro chachitsulo, kunena zambiri, ngodyayo ili pakati pa 30-70 °.Ngodya iyi imangogwirizana ndi kumeta ubweya wa ubweya, kotero kuti kupindika kwake, kugwedezeka, kuponderezana ndi anti-twist katundu sikuli bwino ngati chitoliro cha LSAW.Panthawi imodzimodziyo, chifukwa cha kuchepa kwa malo owotcherera, chishalo ndi nsomba zowotcherera msoko zimakhudza maonekedwe.Chifukwa chake, NDT ya ma welds a SSAW ayenera kulimbikitsidwa kuti atsimikizire mtundu wa kuwotcherera, apo ayi chitoliro cha SSAW sichiyenera kugwiritsidwa ntchito pazochitika zofunika zachitsulo.