E312 Rakau Whakarewa, e tohua ana ko AF312-16 i raro i te ingoa ahumahi noa, he mea whakapau motuhake e rite ana ki te paerewa ā-motu Haina GB/T E312-16 me te whakatakotoranga AWS A5.4 E312-16 e mōhiotia ana i te ao. E tautuhia ana e tēnei whakarōpūtanga hei otinga nui mō ngā tono whakarewa uaua e uru ana ki ngā momo maitai kore waikura motuhake me ngā rauemi uaua.
Ko te hanganga matua o tēnei hikohiko he mea hanga ki te maitai kore waikura takirua Cr29Ni9. Mā tōna paninga hikohiko kua pania ki te titanium-konupūmā ka taea te whakamahi i ngā pūtake hiko AC me DC, ka puta he pumau pai o te pewa, he iti noa te tauhiuhi, ā, he maeneene te tango i te paru. He mea nui, kei roto i te konganuku whakarewa kua whakatakotoria he tāpiritanga rautaki o te molybdenum me te hauota, me te iti rawa o te ihirangi waro. Mā tēnei hanganga matū tika ka whakawhiwhia te E312 Welding Rod ki te ātete tino pai ki te pakaru totoka me te ātete pai ki te waikura, inā koa te mahi tino pai ki te pakaru waikura ahotea (SCC).
I hangaia mō ngā tono nui, ko te kaupapa matua o teE312 Rakau WhakarewaKo te hononga pakari me te whakatika i ngā maitai kore waikura me ngā whakarewanga momo 29-9. Nā ōna āhuatanga tino pai, koinei te mea pai mō te whakarewa i ngā konganuku rerekē (pēnei i te hononga o ngā maitai kore waikura austenitic ki ngā maitai waro, ngā maitai iti-koranu rānei) me ngā tono e ngāwari ana ki te whakarewa i ngā hapa pēnei i te pakaru wera me te porosity. Ko te ngāwari o te whakamahi e tukuna ana e tōna paninga ka whakarei ake i tōna pai mō ngā whakarewanga uaua, ngā whakarewanga nui rānei.
Haunga ōna huānga whakarewa matua, he tino taurite te hanganga o te irahiko hei whakapai ake i te mahi. Ko te momo paninga titanium-konupūmā (titania-raima) ehara i te mea ka tautoko noa i ngā āhuatanga mahi pai engari ka whai wāhi hoki ki te pumau o te pewa me te kounga o te konganuku kua whakatakotoria. Ko te hanganga moroiti konganuku whakarewa ka puta mai ka whakamahi i ngā painga ā-roto o te hanganga takirua.，te whakakotahi i te kaha o te ferrite me te pakari me te ātete ki te waikura o te austenite，i whakanuia ake anō e ngā hua pai o Mo me N.
Ngā āhuatanga hangarau o teE312 Rakau Whakarewa, inā koa ko tōna momo AF312-16 kua whakamātauhia, ka whakatūria hei taputapu tino nui i roto i ngā rāngai ahumahi uaua pēnei i te tukatuka matū, te whakaputa hiko, me te miihini moana. Ko tōna huinga tino pai o te ātete pakaru teitei, te mahi waikura pai rawa atu–inā koa ki te SCC–ā, ko te tino pai o te āheinga whakarewa mō ngā rauemi uaua me ngā hononga rerekē ka whakarite i te pumau o te hanganga me te roa o te ora i roto i ngā taiao ratonga tino wero, ka whakapūmau i tōna mana hei taputapu whakarewa pai rawa atu.
Wā tuku: Akuhata-05-2025