E312 tokotoko whakarewa E tutuki ana i ngā whakaritenga AWS E312-17, ā, koinei te otinga pai mō te whakarewa ā-ringa pewa ā-ringa (SMAW) maha-whakaaro, tino pono. I hangaia mō te whakarewa i ngā tūranga katoa, he tino pai te hikohiko i roto i ngā āhuatanga hanga me te whakatikatika uaua me te huri haere o ngā ahunga whakarewa. Ko tōna painga matua ko tōna kaha ki te hanga i tētahi putunga austenitic kaha, ātete-ngatata ki runga i ngā momo rauemi turanga uaua, tae atu ki ngā momo maitai kowiri tira, ngā huinga konganuku rerekē me ngā taumata maitai koranu teitei, inā koa mō ngā āhuatanga e tino nui ana te ātete ki te ru wera.
Ka whakamahia e ngā irahiko E312 he putunga irahiko austenitic e tohuhia ana e te nui o te chromium me te nui o te nickel. Mā tēnei hanganga motuhake ka tino ātete ki te pakaru wera, he raruraru noa tēnei ina whakarewahia ngā hononga tino herea, ngā konganuku rerekē, ngā konganuku ngāwari rānei te pakaru. Ka whakaatuhia e te konganuku whakarewa hua he kaha kume tino pai i ngā pāmahana rūma me ngā pāmahana teitei, ā, he pai te ngāwari me te pakari o te pānga.
He ahurei a E312-17 nā ōna āhuatanga whakahaere kua tino pai.E312 tokotoko whakarewa (AWS E312-17) he rite ki te hikohiko E312-16, engari kua nui ake te ihirangi silicon i roto i tōna hanganga paninga, ā, kua iti ake te ihirangi titanium. Mā tēnei whakatikatika ātaahua ka pai ake te pumau o te pewa i ngā tūranga katoa, inā koa i ngā whakarewanga uaua o runga me ngā whakarewanga poutū ki runga. Ka puta he pānga "pewa jet" ahurei mai i tēnei matū ina whakamahia i roto i ngā whakarewanga whakapae.
He whānui rawa ngā whakamahinga o te hiko E312. Koinei te mea e whakamahia ana mō te hono i ngā konganuku rerekē, ngā maitai kore waikura austenitic ki ngā maitai waro, iti rānei te koranu, me ngā koranu nikara teitei ki ngā maitai. He tino whai hua mō ngā whakamahinga whakakikorua me te whakakikorua ina hiahiatia te ātete ki te pakaru me te waikura. He tino whakautehia hoki te hiko i roto i te whakatikatika i te whakarewanga o ngā mea whakarewa e ngāwari ana ki te pakaru. Ko ngā ahumahi matua e whakawhirinaki ana ki tana mahi ko te whakaputa hiko, te tukatuka matū me te petrochemical, te penupenu me te pepa, me te hanga me te tiaki taputapu taumaha.
E312 tokotoko whakarewa (AWS E312-17) e tuku ana i te whānuitanga me te pono kāore e taea te whakataurite mō ngā mahi whakarewa uaua e hiahia ana ki te whakarewa i ngā tūranga katoa, te ātete pai ki te pakaru me ngā putunga kaha teitei. Ko tōna matū paninga motuhake ka hoatu he pānga "jet arc" tino pai, e āhei ai te whakarewatanga o ngā muka whakapae pai rawa atu, e whakarato ana i te kai whakarewa ki ngā āhuatanga whakahaere me te putunga pai ake. Ko te konganuku whakarewa austenitic ka puta he ātete pai ki te pakaru wera me te waimeha, ka waiho hei hikohiko nui mō ngā hononga nui pēnei i ngā konganuku rerekē, ngā maitai koranu teitei, me ngā mahi whakatikatika uaua.
Te wā tuku: Hurae-31-2025