Poraka Hanga Kowiri tira AISI 431 | 1.4057 Rino Miihini Kaha Teitei
Whakaahuatanga Poto:
Ko ngā Poraka Hanga Kowiri tira 431 he maitai kowiri tira martensitic kaha-teitei e mōhiotia ana mō ō rātou āhuatanga miihini pai rawa atu, ātete pai ki te waikura, me te pakeke teitei. He mea whakamahi noa ēnei poraka hanga i roto i te hanga wāhanga e hiahia ana ki te kaha me te ātete ki te waikura ngawari, pērā i ngā pou, ngā pokepokea ai, ngā taputapu rererangi, ngā wāhanga papu, me ngā taputapu moana.
Poraka Rino Whakarewa AISI 431:
Poraka Rino Whakarewa AISI 431He hua rino kowiri tira martensitic kaha-teitei, ātete-waikura, e whakamahia whānuitia ana i roto i ngā tono e hiahia ana ki te mahi miihini pai rawa atu me te ātete waikura taurite. Nā te nui o te chromium me te nickel, ka pai ake te pakari, te pakeketanga, me te ātete ki te tauine i te 431 ki te whakataurite ki ngā momo martensitic paerewa pēnei i te 410, 420 rānei. Ko ēnei poraka hanga ka tukuna i roto i ngā āhuatanga whakamahana, tinei me te whakamahana (QT) ā, ka taea te miihini anō ki ngā rahinga kua tohua e te kiritaki. He pai mō ngā toki, ngā wāhanga papu, ngā tinana takirere, me ngā taputapu taputapu, he kōwhiringa pai rawa atu ngā poraka hanga AISI 431 mō ngā ahumahi pēnei i te rererangi, te moana, te tukatuka matū, me te miihini whānui.
Ngā Whakatakotoranga o te Poraka Whakarewa 431 SS:
| Tau | 410, 416, 420, 430, 431, me ētahi atu. |
| Ngā Whakatakotoranga | ASTM A276 |
| Rahi | Ka taea te whakarite |
| Kua oti | Te Mira Mata |
| Momo | Ngā Poraka |
431 Ngā momo rite o te Poraka Hangaia:
| Paerewa | UNS | EN | JIS |
| 431 | S43100 | 1.4057 | SUS 431 |
431 Te Hanganga Matū o te Pae Whakarewa SS:
| Tau | C | Si | Mn | S | P | Cr | Ni |
| 431 | 0.12-0.20 | 1.0 | 1.0 | 0.030 | 0.040 | 15.0-17.0 | 1.25-2.5 |
431 Poraka Mīhini Kowiri tira Maimoatanga Wera
Ko ngā poraka miihini kowiri tira 431 ka tukatukahia ki te wera hei whakatutuki i ngā āhuatanga miihini tino pai. Ko ngā āhuatanga tino noa ko te Quenched and Tempered (QT) me te H1150. Ka whakarei ake te maimoatanga wera i te kaha, te pakari, me te ātete ki te waikura o te poraka, kia pai ai mō te miihini tika me ngā tono ahotea teitei. Ka tukatukahia ia poraka kia rite te hanganga, te pumau o ngā āhuatanga, me te pakeke ōrite puta noa.
1.4057 Whakaoti Mira Mata Poraka Hangaia
Ko te Poraka Kowiri tira i hangaia mō te 1.4057, e mōhiotia ana ko te AISI 431, he kowiri tira martensitic kaha-teitei me ngā āhuatanga miihini tino pai me te ātete waikura ngawari. I tukuna mai i roto i te āhua i hangaia mō te mira mata, ka tukuna e te poraka he tika ake ngā āhuatanga me te mata maeneene ake, he mea tino pai mō te miihini CNC i raro iho, mō te hanga tika rānei. Mā te mira mata ka whakaitihia te taratara o te mata (te tikanga ko Ra ≤ 3.2 µm), ka pai ake te taunga, te whakarite, me te whakaiti i te wā miihini i roto i ngā tono nui.
431 pae tapawhā Whakamātautau taratara
Ka whakamātautauhia ā mātou pae tapawhā kowiri tira 431 kia tino tika ai te pakari o te mata kia tutuki ai ngā whakaritenga tika o ngā tono ahumahi mahi teitei. Mā te whakamahi i ngā ine mata kua whakatikatikaina, ka inehia e mātou te uara Ra (Roughness Average) i runga anō i ngā paerewa o te ao pēnei i te ISO 4287 me te ASME B46.1. Mā tēnei whakamātautau ka whakarite kia pai te whakaotinga mata o te pae mō ngā whakamahinga nui i roto i ngā ahumahi rererangi, moana, me te miihini. Mā te ātete pai ki te waikura me te kaha kume teitei, he pai te kowiri tira 431 mō ngā wāhanga e hiahia ana ki te roa me te tika o ngā āhuatanga. Ka manatokohia e te whakamātautau pakari te rite o te miihini me te whakarei ake i te pono o te hua i roto i ngā tono whakamahinga mutunga.
Rere Whakaputa o te Poraka Hangaia 431
Koinei te tukanga whakaputa noa mō ā mātou poraka maitai kore waikura 431:
1. Ingota → 2. Te hanga i muri i te whakamahana → 3. Te tapahi → 4. Te maimoatanga wera → 5. Te whakaoti i te mira mata → 6. Te hua kua oti
Ka tīmata ia poraka ki tētahi porowhita kounga teitei, ka whakamahanahia, ka whakawerahia hoki hei whakapai ake i tōna hanganga o roto. Whai muri i te tapahi kia rite ki te rahi, ka whakamahanahia te poraka kia tutuki ai te pakeke me te pakari e hiahiatia ana. Kātahi ka pania he whakaotinga mira mata hei whakarite i te papatahi me te tika i mua i te tirotiro whakamutunga me te tukunga.
Ā Mātou Ratonga
1. Hanga Ritenga – E wātea ana ngā poraka hanga i roto i ngā rahi me ngā āhua kua whakaritea.
2. Maimoatanga Wera – Kua tineia, kua whakamahanatia (QT), kua whakamahanatia, kua H1150 rānei te āhua i runga i te tono.
3. Mira Mata – Mira mata tino tika hei whakarite i te papatahi me te whakaiti i te wā miihini.
4. Mīhini CNC (mēnā ka tonoa) – E wātea ana te mīhini taratara, te mīhini haurua-oti rānei.
5. Tirotiro Tuatoru – Tautoko mō te tirotiro SGS, BV, TUV, te tirotiro rānei kua tohua e te kiritaki.
6. Tiwhikete Whakamātautau Mira (EN 10204 3.1/3.2) – Te whai i ngā paerewa o te ao me te tutuki i ngā paerewa katoa.
7. Tākai Ngāwari me te Whakahaere Kaweake – Papa rakau, paihere maitai, tākai pai mō te moana.
8. Wā Arataki Tere me te Tukunga Ao Whānui – Te whakaritenga whakaputa pono me ngā kōwhiringa tuku puta noa i te ao.
9. Tautoko Hangarau – Te whiriwhiri rauemi, ngā taunakitanga miihini, me te arotake tuhi.
431 Poraka Kua Whakapakarihia Kua Kowiri tira:
1. He mea nui te tākai, inā koa mō ngā tukunga o tāwāhi e haere ana ngā uta mā roto i ngā huarahi rerekē kia tae atu ki te ūnga whakamutunga, nō reira ka tino aro nui mātou ki te tākai.
2. He maha ngā huarahi e tākai ai a Saky Steel i ā mātou taonga, e ai ki ngā hua. He maha ngā huarahi e tākai ai mātou i ā mātou hua, pērā i,
