Ngā hiri hinu Polytetrafluoroethylene (PTFE)he otinga hiri matatau e mōhiotia ana mō tō rātou ātete matū tino pai, te iti o te waku, me te kaha ki te mahi i roto i ngā pāmahana tino kino. He rerekē ki ngā elastomers tuku iho pērā i te nitrile (NBR) me te rapa fluorocarbon (FKM), ka whakamahia e ngā hiri PTFE ngā āhuatanga ahurei o ngā fluoropolymers hei whakarato i te pono kore e taea te whakataurite i roto i ngā tono ahumahi uaua. Ka tūhuratia e tēnei tuhinga te hanganga, ngā painga, me ngā whakamahinga motuhake o ngā hiri hinu PTFE, e aro ana ki ngā pātai noa mō te whakahinuhinu, te kimi turuturu, te roa o te ora, me ētahi atu.
## Ngā Kōrero Matua
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Ngā hiri hinu PTFEHe tino pai i roto i ngā taiao uaua nā te mea kāore e tauhohe, he whānui te awhe pāmahana (-200°C ki te +260°C), me te ātete ki ngā matū, ki te UV, me te koroheketanga.
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Kāore i rite kinitrilerāneiNgā hiri FKM, kāore e hiahiatia he hinu whakahinuhinu mō te PTFE i roto i ngā mahi maha, ā, ka whakaiti i ngā utu tiaki.
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Ko ngā whakamahinga noa ko ngā miihini motuka, ngā pūnaha rererangi, te tukatuka matū, me ngā mīhini kai-kai.
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He tino pai ngā hiri PTFE mō ngā ahumahi e whakatairanga ana i te mahi kore-paru, pērā i ngā rongoā me ngā haurua-haurua.
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He mea nui te tāutanga tika me te whiriwhiri rauemi hei whakanui ake i te roa o te ora, ka roa ake pea10+ taui roto i ngā āhuatanga tino pai.
## He aha ngā hiri hinu PTFE?
Whakamāramatanga me te Hanganga
Ko ngā hiri hinu PTFE he gasket miihini i hangaia hei pupuri i ngā hinu whakahinuhinu me te ārai i ngā poke i roto i ngā toki hurihuri, i ngā toki hoki. Ko te hanganga o ēnei hiri ko:
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Ngutu PTFEHe tapa hiri iti-waku e urutau ana ki ngā hapa o te kakau.
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Utaina Puna (Whiringa): Whakarei ake i te kaha porowhita mō ngā tono pēhanga teitei.
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Pouaka WhakarewaHe whare maitai kore waikura, he whare maitai waro rānei hei pupuri i te pakari o te hanganga.
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Ngā Mowhiti Ārai-TukungaĀrai i te rerekētanga o te āhua i raro i ngā pēhanga tino nui.
Ko te hanganga ngota o te PTFE—he tuara waro kua whakakiia katoatia ki ngā ngota fluorine—e whakarato ana i te ātete ki te nuinga o ngā matū, tae atu ki ngā waikawa, ngā whakarewa, me ngā wahie. Ka whakaitihia e tōna mata tino maeneene te pakaru me te ngaronga pūngao, ā, he mea tino pai mō te hiri hihiri.
## Ngā Hiri Hinu PTFE me te Nitrile me te FKM: Ngā Rerekētanga Matua
| Rauemi | PTFE | Nitrile (NBR) | FKM (Waikawa Whero) |
|---|---|---|---|
| Awhe Pāmahana | -200°C ki te +260°C | -40°C ki te +120°C | -20°C ki te +200°C |
| Ātete Matū | Ātete ki te 98% o ngā matū | He pai mō ngā hinu, ngā wahie | He tino pai mō ngā waikawa, ngā hinu |
| Tauwehenga Waku | 0.02–0.1 (whakahinuhinu-ā-ia-anō) | 0.3–0.5 (me whakamahi hinu) | 0.2–0.4 (waenga) |
| Ngā Hiahia Whakahinuhinu | He maha ngā wā kāore e hiahiatia ana | Te paninga hinu auau | Whakahinuhinu taurite |
| Te roanga o te ora | 10+ tau | 2–5 tau | 5–8 tau |
He aha te PTFE e toa ai i roto i ngā taiao kino:
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Te Āheinga Rere MarokeMā ngā āhuatanga whakahinuhinu-ake a te PTFE ka kore e hiahiatia he hinu o waho i te nuinga o te wā, ka whakaitihia hoki ngā tūponotanga poke.
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Kore PupuhiHe rerekē te PTFE i ngā elastomers, ātete ana ia ki te pupuhi i roto i ngā wai e hangai ana ki te hauwaiwai.
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Te Whakatutukitanga o te FDAKua whakaaetia te PTFE mō ngā mahi kai me ngā mahi rongoā.
## Ngā Taupānga me ngā Mātāpono Mahi
Kei hea e whakamahia ai ngā hiri hinu PTFE?
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AunoaNgā toki turbocharger, ngā pūnaha tuku, me ngā pūnaha whakamatao pākahiko EV.
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RererangiNgā whakatere waipēhi me ngā wāhanga miihini jet.
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Te Tukatuka MatūNgā papu me ngā takirere e whakahaere ana i ngā pāpāho kaha pēnei i te waikawa whanariki.
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Ngā Kaiārahi-hauruaNgā rūma korehau me ngā taputapu whakairo plasma.
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Kai me te RongoāNgā mīhini whakaranu me ngā mīhini whakakī e hiahia ana ki ngā hiri e tutuki ana i ngā whakaritenga a te FDA.
Me pēhea te mahi a ngā hiri PTFE?
Ko ngā mahi a ngā hiri PTFE mā roto i:
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Hiritanga UrutauKa tutuki te ngutu PTFE mēnā he iti noa ngā hapa o te pou, ngā hapa rānei o te mata.
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Te Whakaputa Wera Iti rawaKa whakaitihia te pirau wera e te waku iti.
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Hiritanga Pūmau me te HihiriHe whai hua mō ngā mahi tūmau me ngā mahi tere-tiketike (tae atu ki te 25 m/s).
## Aratohu Whakahinuhinu: Me pania he hinu ki ngā hiri PTFE?
Nā te kaha o te PTFE ki te whakahinuhinu, ka kore e hiahiatia he whakahinuhinu o waho. Heoi, i roto i ngā āhuatanga kawenga nui, tere nui rānei,ngā hinu e hangai ana ki te siliconerāneiNgā hinu PFPE (perfluoropolyether)e taunakitia ana nā te mea he hototahi me te pumau o te wera. Āta karohia ngā hinu kei roto i te hinu, ka taea e ēnei te whakaiti i te PTFE i roto i te wā.
## Me pēhea te kite i ngā turuturu o te hiri hinu
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Tirotiro TirohangaKimihia ngā toenga hinu huri noa i te whare hiri.
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Whakamātautau PēhangaPāngia te pēhanga hau hei tirotiro mēnā he mirumiru e puta mai ana.
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Ngā Inenga MahiAroturukihia ngā pikinga o te pāmahana, te pikinga rānei o te whakapaunga pūngao, e tohu ana i te waku mai i te hiri e pakaru ana.
## Te Roa o te Hiri Hinu Mīhini: Ngā Take me ngā Tumanakohanga
Ko ngā hiri hinu PTFE i roto i ngā miihini ka roa te mau8–12 tau, i runga anō i:
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Ngā Tikanga WhakahaereKa whakaitihia te roa o te ora e ngā pāmahana tino wera, e ngā poke whakakoi rānei.
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Kounga Tāutanga: Ka pakaru wawe te hononga mēnā kāore i te tika te tūnga i te wā e tāuta ana.
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Taumata RauemiKa whakarei ake te roa o te mau o ngā ranunga PTFE kua whakapakaritia (hei tauira, he mea whakakī ki te karāhe).
Hei whakataurite, e 3–5 tau te roa o te hiri nitrile i roto i ngā miihini, ko te FKM ia e 5–7 tau te roa.
## Ngā Auahatanga Ahumahi: He aha i Piki Rongonui ai ngā Hiri PTFE
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Te Oranga TonuKa whakaitihia te para e te roa o te ora o te PTFE ki te whakaritea ki te whakakapinga elastomer auau.
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Ngā Waka Hiko (EV)Kei te piki haere te hiahia mō ngā hiri e ātete ana ki ngā wai whakamatao me ngā ngaohiko teitei.
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Ahumahi 4.0Kei te puta ake ngā hiri atamai me ngā pūoko whakauru mō te tiaki matapae.
## Ngā Pātai Auau
Q: Ka taea e ngā hiri PTFE te whakahaere i ngā taiao korehau?
Āe, nā te iti o te hau e puta ai te PTFE he mea tino pai mō ngā pūnaha korehau i roto i te hanga haurua-ira.
Q: Ka taea te hangarua anō i ngā hiri PTFE?
A: Ahakoa he koretake te PTFE, me whai tukanga motuhake te hangarua. He maha ngā kaihanga e tuku ana i ngā kaupapa tango-whakahoki.
Q: He aha te take e pakaru wawe ai ngā hiri PTFE?
A: Te tāutanga hē, te kore hototahitanga o ngā matū, te nui rawa rānei o ngā herenga pēhanga (te nuinga o te wā > 30 MPa).
Q: Kei a koe ngā hoahoa hiri PTFE ritenga?
Āe, ka whakaratohia e [Tō Ingoa Kamupene] ngā otinga kua whakaritea mō ngā rahi motuhake o te pou, ngā pēhanga, me ngā rauemi.
## Whakamutunga
Ko ngā hiri hinu PTFE te tihi o te hangarau hiri, e tuku ana i te mahi tino pai i roto i ngā ahumahi kāore e taea te rahua. Mā te mārama ki ō rātou painga i runga i te nitrile me te FKM, te whiriwhiri i te hinu whakahinuhinu tika, me te piri ki ngā tikanga pai, ka taea e ngā pakihi te whakaiti i te wā kore mahi me ngā utu whakahaere.
Wā tuku: Maehe-03-2025