He aha te mea e tino rongonui ai te 304 me te 316?
Ko te nui o te chromium me te nickel i roto i te maitai kore waikura 304 me te 316 ka whakarato i te ātete kaha ki te wera, te pakū, me te waikura. Ehara i te mea e mōhiotia ana rātou mō tō rātou ātete ki te waikura anake, engari e mōhiotia ana hoki mō tō rātou āhua ma me te tino ma.
E kitea ana ngā momo maitai kore waikura e rua i roto i ngā ahumahi whānui. Hei te momo maitai kore waikura tino noa, e kiia ana te 304 ko te maitai kore waikura paerewa "18/8". E whakamahia whānuitia ana te maitai kore waikura 304 nā te mea he pakari, he ngāwari hoki te hanga ki ngā momo āhua pēnei i te rau maitai kore waikura, te pereti maitai kore waikura, te pae maitai kore waikura, me te ngongo maitai kore waikura. Nā te ātete o te maitai 316 ki ngā matū me ngā taiao moana, he mea rongonui i waenga i ngā kaihanga.
Me pēhea te whakarōpūtanga?
Ko ngā akomanga e rima o te maitai kore waikura kua whakaritea i runga i tō rātou hanganga tioata (te whakatakotoranga o ō rātou ngota). I roto i ngā akomanga e rima, ko te maitai kore waikura 304 me te 316 kei roto i te akomanga austenitic. Nā te hanganga o ngā maitai kore waikura austenitic ka kore e aukume, ā, ka kore e taea te whakapakeke mā te whakamahana.
1. Ngā Āhuatanga o te Kowiri tira 304
● Te Hanganga Matū o te Rino Kowiri tira 304
| Waro | Manganēhi | Hiraka | Whēkau | Whāriki | Konupora | Nikara | Hauota | |
| 304 | 0.08 | 2 | 0.75 | 0.045 | 0.03 | 18.0/20.0 | 8.0/10.6 | 0.1 |
● Ngā Āhuatanga Ā-tinana o te 304 SS
| Te Pūwāhi Rewa | 1450℃ |
| Kiato | 8.00 karamu/cm^3 |
| Whakawhanuitanga Wera | 17.2 x10^-6/K |
| Te Tauwehenga o te Āhuatanga | 193 GPa |
| Te Arahi Wera | 16.2 W/mK |
● Ngā Āhuatanga Ā-ringa o te Kowiri tira 304
| Kaha Kume | 500-700 Mpa |
| Te toronga A50 mm | 45 meneti % |
| Te pakeketanga (Brinell) | 215 Teitei HB |
● Ngā Whakamahinga o te Kowiri tira 304
He mea noa te whakamahi i te 304 SS i roto i te umanga hauora nā te mea ka ātete ki ngā matū horoi kaha, ā, kāore e waikura. Hei tētahi o ngā koranu ruarua e tutuki ana i ngā ture akuaku a te Whakahaere Kai me te Rongoā mō te whakarite kai, he mea noa te whakamahi i te 304 SS i roto i te umanga kai.
Te whakarite kai: Ngā parai, ngā tēpu whakarite kai.
Ngā taputapu kīhini: ngā oko tunu kai, ngā oko hiriwa.
Ngā āhuatanga hoahoa: ngā taha o te whare, ngā ararewa, ngā tūru kaukau.
Hauora: ngā paepae, ngā taputapu pokanga.
2. Ngā Āhuatanga o te Kowiri tira 316
He rite tonu ngā āhuatanga matū me ngā āhuatanga ā-pūkaha o te 316 ki te maitai kore waikura 304. Ki te titiro tahanga, he rite tonu te āhua o ngā konganuku e rua. Heoi, ko te hanganga matū o te 316, he mea hanga ki te 16% chromium, 10% nickel, me te 2% molybdenum, te rerekētanga matua i waenga i te maitai kore waikura 304 me te 316.
● Ngā Āhuatanga Ā-tinana o te 316 SS
| Te pūwāhi rewa | 1400℃ |
| Kiato | 8.00 karamu/cm^3 |
| Te Tauwehenga o te Āhuatanga | 193 GPa |
| Whakawhanuitanga Wera | 15.9 x 10^-6 |
| Te Arahi Wera | 16.3 W/mK |
● Ngā Āhuatanga Ā-ringa o te 316 SS
| Kaha Kume | 400-620 Mpa |
| Te toronga A50 mm | 45% meneti |
| Te pakeketanga (Brinell) | 149 HB mōrahi |
Ngā tono o te maitai kore waikura 316
Mā te tāpiri o te Molybdenum ki te 316 ka nui ake tōna ātete ki te waikura i ērā atu koranu rite. Nā tōna ātete pai ki te waikura, ko te 316 tētahi o ngā konganuku matua mō ngā taiao moana. Ka whakamahia hoki te kowiri tira 316 i roto i ngā hōhipera nā tōna pakari me tōna ma.
Te whakahaere wai: ngā kohua, ngā whakamahana wai
Ngā wāhanga moana - ngā reri poti, ngā taura waea, ngā arawhata poti
Taputapu Hauora
Ngā taputapu tukatuka matū
304 vs 316 Kowiri tira: Ātete ki te wera
He mea nui te ātete wera hei whakaaroaro mā te whakataurite i ngā momo rerekē o te maitai kore waikura. Ko te whānuitanga rewa o te 304 he 50 ki te 100 nekehanga Fahrenheit teitei ake i te 316. Ahakoa he teitei ake te whānuitanga rewa o te 304 i te 316, he pai te ātete o ēnei e rua ki te waikura i roto i te ratonga wā poto tae atu ki te 870°C (1500℉) me te ratonga tonu i te 925°C (1697℉).
304 SS: Ka pai te whakahaere i te wera nui, engari ki te whakamahia tonutia i te 425-860 °C (797-1580 °F) ka waikura pea.
316 SS: Ka tino pai te mahi i ngā pāmahana neke atu i te 843 ℃ (1550 ℉) me raro iho i te 454 ℃ (850°F)
Te Rerekētanga Utu o te 304 Kowiri tira me te 316
He aha te mea e nui ake ai te utu o te 316 i te kowiri tira 304?
Nā te pikinga ake o te nui o te nikara me te tāpiritanga o te molybdenum ki te 316, ka nui ake te utu i te 304. I te toharite, ko te utu o te maitai kore waikura 316 he 40% teitei ake i te utu o te 304 SS.
316 vs 304 Kowiri tira: Ko tēhea te mea pai ake?
Ina whakatauritea te maitai kore waikura 304 ki te 316, he pai me he huakore ngā mea hei whakaaroaro māu ina whakatau ana koe ko tēhea te mea hei whakamahi mā ngā momo mahi rerekē. Hei tauira, he ātete ake te maitai kore waikura 316 i te 304 ki te tote me ētahi atu mea waikura. Nō reira, ki te mea kei te hanga koe i tētahi hua ka pāngia e ngā matū, e te taiao moana rānei, ko te 316 te kōwhiringa pai ake.
I tētahi atu taha, ki te mea kei te hanga koe i tētahi hua kāore e hiahia ana ki te ātete waikura kaha, he kōwhiringa whai hua, he kōwhiringa ōhanga hoki te 304. Mō ngā whakamahinga maha, ka taea te whakawhiti i te 304 me te 316.
He tohunga a Jindalai Steel Group, he kaiwhakarato matua hoki mō te maitai me te kowiri tira. Tukuna mai tāu patai, ā, ka koa mātou ki te kōrero ngaio ki a koe.
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Wā tuku: Hakihea-19-2022
