420 SSHe rauemi kounga teitei te waea rehu wera (Kowiri tira) i hangaia mō ngā mahi rehu pewa. E mōhiotia ana mō tōna ātete pai ki te waikura, te pakeke teitei, me te ātete pai ki te kakahu, he kowiri tira martensitic te 420 SS e whakarato ana i te tiaki mata pakari. He mea whakamahi noa tēnei waea i roto i ngā ahumahi pēnei i te hinu matū, te whakaputa hiko, te motuka, me te moana hei whakarei ake i te roa me te roa o te ora o ngā wāhanga nui. He pai te waea rehu wera 420 SS mō ngā mahi e hiahia ana ki te paninga mārō, ātete ki te kakahu me te ātete waikura ngawari.
He mea nui te whakarite tika o te mata hei whakatutuki i ngā hua tino pai me te waea rehu wera 420 SS. Me tino horoia te mata e pania ana kia tangohia ngā poke pēnei i te hinu, te paru, me ngā waikura. E taunakihia ana te whakamahi i te paru ki te waikura konumohe, ki te silicon carbide rānei hei whakatutuki i te taratara o te mata o te 50-75 microns. Mā te mata ma, taratara hoki ka pai ake te piri o te paninga rehu wera, ka pai ake te mahi me te roa o te wā.
| Huānga | Te hanganga (%) |
|---|---|
| Waro (C) | 0.15 – 0.40 |
| Konukōmiuma (Kr) | 12.0 – 14.0 |
| Manganēhi (Mn) | 1.0 mōrahi |
| Hiraka (Si) | 1.0 mōrahi |
| Whēkau (P) | 0.04 mōrahi |
| Whānariki (S) | 0.03 mōrahi |
| Rino (Fe) | Taurite |
| Taonga | Uara Noa |
|---|---|
| Kiato | 7.75 karamu/cm³ |
| Te Pūwāhi Rewa | 1450°C |
| Te pakeketanga | 50-58 HRC |
| Kaha Here | 55 MPa (8000 psi) |
| Ātete Waikura | Pai |
| Te Arahi Wera | 24 W/m·K |
| Awhe Matotoru Paninga | 0.1 – 2.0 mm |
| Pūngao | < 3% |
| Ātete Kakahu | Teitei |
He otinga tino pai te waea rehu wera 420 SS mō te whakarei ake i ngā āhuatanga mata o ngā wāhanga e pāngia ana e te pakaru me te waikura ngawari. Nā tōna pakeke teitei me te ātete pakaru pai e pai ai mō ngā tono e hiahia ana he paninga pakari me te roa. Mā te whakamahi i te waea rehu wera 420 SS, ka taea e ngā ahumahi te whakapai ake i te roa o te mahi me te pono o ā rātou taputapu me ngā wāhanga.
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