He aha te SAF2205?

Ko te SAF2205 he momo maitai kowiri tira takirua matarohia i whakawhanakehia e Sandvik, ko tōna tikanga tuatahi ko te Sandvik Austenite Ferrite. He rongonui mō tōna kaha teitei me tōna ātete pai ki te waikura ahotea pūhaumāota, ā, e kiia ana heawaawahe rauemi hei whakapai ake i ngā maitai kore waikura noa pēnei i te 316L ki ngā maitai kore waikura tino pai. Ko tōna ahurei kei roto i tōna hanganga o roto, tata ki te haurua ferrite me te haurua austenite, e whakakotahi ana i ngā painga o ngā hanganga moroiti e rua.

Ka taea te whakarite tika i te mahi a SAF2205 ki te paearu e whakamahia whānuitia ana 316L penei:

• Kaha:Tata ki te 450 MPa, e rua pea te matotoru o te 316L, e taea ai te angiangi o te matotoru o te pakitara.
• Ātete waikura (uara PRE):≥35, he nui ake i te 316L 24. He tino kaha tōna ātete ki te waikura o ngā poka me ngā kapiti i roto i ngā taiao kei roto te hauhāora (pērā i te wai moana).
• Pakaru waikura ahotea:Tino pai. I roto i ngā taiao kei roto te hauhāora, ka ngawari te pakaru o te 316L i ngā pāmahana neke atu i te 60°C, engari he tino pai te ātete o te SAF2205.

He maha ngā tohu māhanga e whakamahia ana e SAF2205. Kia tupato ki te rerekētanga ina hoko ana koe:

• UNS S31803:Te māka taketake.
• UNS S32205:He paerewa hou ake, he whānui ake te whakamahinga, he kaha ake te whakahaere i te hanganga (ina koa te hauota), ā, he pai ake te ātete ki te waikura i te karaehe tawhito S31803.
• EN 1.4462:Ko te tohu i raro i te paerewa a te EU.

Me te whakakotahitanga o"kaha nui + ātete ki te waikura", e whakamahia ana hei whakakapi i te 316L hei whakatau i ngā āhuatanga mahi tino kino:

• Te ahumahi hinu me te matū:ngā whakawhiti wera, ngā paipa, ngā oko pēhanga, he mea tino pai mō ngā taiao kei roto ngā katote pūhaumāota me te hauwai whanariki.
• Te hangarau moana:ngā taputapu tango tote wai moana, ngā wāhanga hanganga kaipuke, ātete ki te waikura wai moana.
• Te hanga pepa me te ahumahi matū:ngā kohua tunu kai, ngā taputapu whakama, ngā taputapu PTA (waikawa terephthalic parakore), me ētahi atu
• Ngā āhuatanga motuhake:ka taea hoki te whakamahi hei hanga puna mahi-teitei (-100 ki te 300℃ e tika ana) ngā taputapu niho rānei.