He kowiri tira te whakapakeke o te rerenga, e kiia nei ko te PH Steel, e pa ana ki te ahua okowiri tirae taapiri ana i nga momo me te rahinga o nga huānga whakapakari, me nga momo me te rahinga o nga warowaiha, nitrida, waronitrida me nga pūhui intermetallic ka whakahekehia na roto i te tukanga whakamaroke rerenga. Ko te kowiri tira e whakapakeke ana i te ua, ehara i te mea he kaha teitei, engari he pai hoki te pakari me te aukati waikura. Ko te kowiri tira e whakapakeke ana i te rerenga ka taea te maka ki a maatauhangahanga whakarewanga haumikia rite ki o tuhi, whakaritenga me te ahuatanga whakamahi.
E ai ki te ihirangi o nga huānga koranu matua i roto i te ua e whakapakeke ana i te kowiri tira me te taapiri i nga huānga whakapakeke, ka taea te wehea te kowiri tira whakamaroke o te ua kia wha nga waahanga e whai ake nei:
(1)Martensitic precipitation whakapakeke kowiri tira. Ko te tikanga kei roto i te waro iti iho i te 0.1%. Whakakahahia ma te taapiri i nga huānga whakapakeke (te parahi, te konumohe, te titanium me te konumohe, me etahi atu) kia pai ai te kore o te kaha. Ko te ihirangi chromium he teitei ake i te 17%, a ka taapirihia he nui o te nickel hei whakapai ake i te aukati waikura.
(2)Maraging Rerenga Whakapakeke Kowiri tira, me te ihirangi waro e kore e teitei ake i te 0.03% hei whakarite i te pakari, te aukati waikura, te weldability me te mahi o te matrix martensite, me te 12% chromium ki te whakarite i te aukati waikura. I tua atu, ka taapirihia te cobalt huānga koranu hei whakapai ake i te paanga maimoatanga wera o te maitai.
(3)Semi-Austenitic Precipitation Hardening Stainless Steel, ara, te rerenga rerenga e whakapakeke ana i te kowiri tira, kaua e iti iho i te 12% chromium. He iti te ihirangi waro, me te konumohe hei mea matua whakamaroke i te rerenga. He pai ake te mahi o tenei ahua o te rerenga whakapakeke kowiri tira i te martensitic precipitation whakapakeke kowiri tira.
(4)Austenitic Precipitation Hardening Stainless Steelhe kowiri tira me te hanganga austenite pumau i roto i nga ahuatanga kua tineia me te koroheketanga. He tiketike te ihirangi nickel me te konupora, a ko te ihirangi chromium he teitei ake i te 13% hei whakarite i te pai o te waikura me te aukati i te waikura. I te wa ano, ko te kowiri tira e whakapakeke ana i te ua austenitic ko te titanium, te konumohe, te vanadium, te ūkuikui ranei hei huānga whakapakeke o te rerenga, me te taapiri i te iti o te boron, te vanadium, te hauota me etahi atu huānga kia pai ai nga taonga matawhānui.
He nui te whakamahi i te kowiri tira whakamaroke o te rerenga i roto i nga umanga matatau. Hei tauira, ka taea te whakamahi i te 17-4PH te whakamaroke o te ua ki te hanga i nga hanganga i raro iho i te 370°C e hiahia ana te parenga waikura, te whakakakahu, me te kaha teitei.
RMC FoundryMaka te Koeke angamaheni e whai ake nei o te Whakapakeke Kowiri tira
1- Paerewa Hainamana: 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb
2- Paerewa Ingarangi: ANC20, ANC21, ANC22
3- Paerewa Amerika: 630, 634, 17-4PH, 15-5PH, CB7Cu-1
4- Paerewa Japanese: SCS24, SCS32
5- Paerewa Tiamana: 1.4542
| Kowiri tira mo te Tukanga Makanga Whakangao i te RMC Foundry
| |||
| Kāwai | Haina Tohu | Koeke US | Koeke Tiamana |
| Ferritic kowiri tira | 1Cr17, 022Cr12, 10Cr17, | 430, 431, 446, CA-15, CA6N, CA6NM | 1.4000, 1.4005, 1.4008, 1.4016, GX22CrNi17, GX4CrNi13-4 |
| Kowiri tira Martensitic | 1Cr13, 2Cr13, 3Cr13, 4Cr13, | 410, 420, 430, 440B, 440C | 1.4021, 1.4027, 1.4028, 1.4057, 1.4059, 1.4104, 1.4112, 1.4116, 1.4120, 1.4122, 1.4125 |
| Austenitic kowiri tira | 06Cr19Ni10, 022Cr19Ni10, 06Cr25Ni20, 022Cr17Ni12Mo2, 03Cr18Ni16Mo5 | 302, 303, 304, 304L, 316, 316L, 329, CF3, CF3M, CF8, CF8M, CN7M, CN3MN | 1.3960, 1.4301, 1.4305, 1.4306, 1.4308, 1.4313, 1.4321, 1.4401, 1.4403, 1.4404, 1.4405, 1.4404, 1.4404, 8. 1.4435, 1.4436, 1.4539, 1.4550, 1.4552, 1.4581, 1.4582, 1.4584, |
| Rererenga Whakapakeke Kowiri tira | 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb | 630, 634, 17-4PH, 15-5PH, CB7Cu-1 | 1.4542 |
| Matarua Kowiri tira | 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N | A 890 1C, A 890 1A, A 890 3A, A 890 4A, A 890 5A, A 995 1B, A 995 4A, A 995 5A, 2205, 2507 | 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770 |
Wā tuku: Hānuere-30-2021