He wāhanga nui te rauemi hiri takirere o te hiri takirere. He aha ngā rauemi hiri takirere? E mōhio ana tātou ka wehea ngā rauemi mowhiti hiri takirere ki ngā wāhanga e rua: te mea whakarewa me te mea kore-whakarewa. Anei tētahi whakataki poto ki ngā tikanga whakamahinga o ngā momo rauemi hiri, me ngā momo takirere e whakamahia whānuitia ana.
1. Rapa hangai
He pai ake ngā āhuatanga whānui o te rapa hangai pērā i te ātete ki te hinu, te ātete ki te pāmahana me te ātete ki te waikura i ērā o te rapa tūturu. Ko te pāmahana whakamahinga o te rapa hangai ko t≤150℃, ā, ko te pāmahana o te rapa tūturu ko t≤60℃. Ka whakamahia te rapa hei hiri i ngā takirere porowhita,takirere kuaha noho rapa, ngā takirere diaphragm,rtakirere pūrerehua noho ubber, rtakirere tirotiro tūru nohoanga ubber (takirere tirotiro), ngā takirere pītiti me ētahi atu takirere me te pēhanga ingoa PN≤1MPa.
2. Nairona
He iti te tauwehenga waku o te nairona, ā, he pai te ātete ki te waikura. Ko te nairona te mea e whakamahia ana mō ngā takirere pōro me ngā takirere porowhita, ko te pāmahana t≤90℃ me te pēhanga ingoa PN≤32MPa.
3. PTFE
Ko te PTFE te nuinga e whakamahia ana mō ngā takirere porowhita,ngā takirere kuaha, ngā takirere pōro, me ētahi atu me te pāmahana t≤232℃ me te pēhanga ingoa PN≤6.4MPa.
4. Rino maka
Ka whakamahia te rino maka mōtakirere kuaha, takirere porowhita, takirere mono, me ētahi atu mō te pāmahana t≤100℃, te pēhanga ingoa PN≤1.6MPa, te hau me te hinu.
5. Koranu Babbitt
E whakamahia ana te koranu Babbitt mō te takirere porowhita haukini me te pāmahana t-70 ~ 150 ℃ me te pēhanga ingoa PN≤2.5MPa.
6. Parahi koranu
Ko ngā rauemi noa mō ngā koranu parahi ko te parahi tine 6-6-3 me te parahi manganese 58-2-2. He pai te ātete ki te kakahu o te koranu parahi, ā, he pai mō te wai me te mamaoa me te pāmahana t≤200℃ me te pēhanga ingoa PN≤1.6MPa. He maha te whakamahinga i roto ingā takirere kuaha, ngā takirere porowhita,takirere tirotiro, ngā takirere mono, me ētahi atu
7. Kowiri tira Chrome
Ko ngā momo maitai kowiri tira chromium e whakamahia whānuitia ana ko te 2Cr13 me te 3Cr13, kua tineia, kua whakamahanatia hoki, ā, he pai te ātete ki te waikura. He maha ngā wā ka whakamahia i roto i ngā takirere mō ngā pāpāho pēnei i te wai, te mamaoa me te hinu me te pāmahana t≤450℃ me te pēhanga ingoa PN≤32MPa.
8. Kowiri tira Chromium-nickel-titanium
Ko te momo maitai kowiri tira chromium-nickel-titanium e whakamahia whānuitia ana ko te 1Cr18Ni9ti, he pai te ātete ki te waikura, te horo me te wera. He pai mō te mamaoa, te waikawa hauota me ētahi atu mea hanga me te pāmahana t≤600℃ me te pēhanga ingoa PN≤6.4MPa, e whakamahia ana mō te takirere porowhita, te takirere pōro, me ētahi atu.
9. Rino nitrided
Ko te momo maitai nitrided e whakamahia whānuitia ana ko te 38CrMoAlA, he pai te ātete ki te waikura me te rakuraku i muri i te maimoatanga waro. He mea whakamahi whānuitia i roto i te takirere kuaha o te teihana hiko me te pāmahana t≤540℃ me te pēhanga ingoa PN≤10MPa.
10. Te whakapōronitanga
Ka tukatuka tika te whakapūkara i te mata hiri mai i te rauemi o te tinana takirere, o te tinana kōpae rānei, kātahi ka whakahaerehia he maimoatanga mata whakapūkara, he pai te ātete ki te pakaru o te mata hiri. Ka whakamahia i roto i te takirere pupuhi o te teihana hiko.
Wā tuku: Pipiri-10-2022
