1: He aha te rerekētanga tino nui i waenga i ngā rauemi PTFE, EPDM me PFA?
PTFE (Polytetrafluoroethylene):E mōhiotia whānuitia ana ko te kīngi o ngā kirihou, he totoka mā, he tino pai te kore e pakaru i ngā matū me te ātete ki te pāmahana (-196℃~+200℃). He tino iti te tauwehenga waku, engari he ngohengohe tōna kakano, ā, kāore e ātete ki te kakahu me te pēhanga teitei.
EPDM (monoma ethylene propylene diene):rapa pīwariwari pango. Ko te painga matua ko te ātete pai ki te wai wera, te mamaoa, te waikawa me te kawakore (te waikawa ngoikore me te kawakore ngoikore) me te ātete ki te huarere. Ko te ngoikoretanga ko te kore e ātete ki te hinu kohuke me ngā whakarewa hauwaiwai.
PFA (kapia perfluoroalkoxy):PTFE whakarerekē ka taea te tukatuka rewa. He rite tonu tōna mahi ki te PTFE, engari he teitei ake tōna ātete ki ngā pāmahana teitei (+260°C), ā, ka taea te hanga hei nohoanga takirere kiato ake me te mata maeneene ake mā te werohanga. He pai ake tōna ātete ngokingoki me te ātete pakaru i te PTFE.
2: Mō te hototahi ki ngā pāpāho, he aha ngā wai e tika ana mō ēnei?
PTFE: E pā ana ki te nuinga o ngā waikawa kaha, ngā kawakawa kaha, me ngā whakarewa waro, engari kāore i te pai mō ngā konganuku kawakore rewa me te hau hauhā pāmahana teitei.
EPDM:He tino pai mō te wai wera, te mamaoa, te hinu waipēhi phosphate ester, te wai parai, ngā waikawa ngoikore me ngā kawakore. Kāore e whakaaetia te whakamahi i ngā hinu kei roto i te hinu (penehīni, tīhiera), te toluene, me ngā waikawa kukū.
PFA:He rite tōna ātete ki te PTFE mō te waikura, ā, he pumau ake i raro i te pāmahana me te pēhanga teitei. He tino pai mō ngā matū tino parakore (pērā i te waikawa whanariki tino parakore me te waikawa hauota e whakamahia ana i roto i te umanga haurua-ira).
3: Me pēhea te whiriwhiri i waenga i ngā rauemi e toru e pā ana ki ngā āhuatanga ā-tinana?
Te hiri:EPDM > PTFE ≈ PFA. He kaha te rapa ki te whakarerekē i te āhua, ā, he tino manawanui ki ngā karawarawa i runga i te mata o te nohoanga takirere; me nui ake te pēhanga hiri tuatahi a te PTFE/PFA.
Ātete pāmahana: PFA (+260℃) > PTFE (+200℃) > EPDM (te tikanga +120℃, tātai motuhake +150℃).
Ātete kakahu:PFA > PTFE > EPDM. Ka tere te pakaru o te nohoanga takirere EPDM e ngā matūriki kei roto, ka piri te pana.
Ngā whakaritenga taipana:He iti te tauwehenga waku o te PTFE/PFA, he iti hoki te taipana whakawhiti. He nui te tauwehenga waku o te EPDM, ā, he uaua ake te whakatuwhera me te kati i te takirere.
4: Me pēhea te whakatau tere i ngā kōwhiringa i runga i ngā āhuatanga mahi?
Hipanga 1:Tirohia mēnā kei roto te hinu i roto i te rauemi. Mēnā he hinu kohuke, he hinu wahie rānei, kaua e whakamahia te EPDM, engari whiriwhiria te PTFE, te PFA rānei.
Hipanga 2:Tirohia te pāmahana waenga me te horoi. Mō ngā pāmahana teitei (>150°C) me ngā hau uruhanga nui (pērā i te chlorine), he pai ake te PFA. Mena kāore te pāmahana i te teitei (<120℃) ā, he wai, he mamaoa, he hau rānei, ko te EPDM te kōwhiringa tino whai hua.
Hipanga 3:Tirohia mēnā he matūriki, he whakawhiti auau rānei. Mēnā he maha ngā whakatikatika, he matūriki mārō rānei kei roto, whiriwhiria te PFA. Kotahi te tapahi, kāore he matūriki, he PTFE anake te whiringa.
5: He rauemi "ā-ao" kei reira?
Kāo. Ki te hiahia koe kia ātete ki ngā pāmahana teitei, ki te waikura kaha me te hinu i te wā kotahi, ko te PFA te kōwhiringa tuatahi, engari he utu nui (tata ki te 3-5 ngā wā o te PTFE) ā, kāore tōna mahi hiri i te pai ki te rapa. Ki te kore he hinu i roto i te rauemi, ā, kāore i te teitei te pāmahana, ko te EPDM te mea tino ohanga. Ko te kōwhiringa whānui ko te PTFE.
6: Whakarāpopototanga
Mā te whiriwhiri i te rauemi hiri tika ka taea te whakaroa rua i te roa o te ora o te takirere.Tianjin Tanggu Water-Seal Valve Co., Ltd– he tohunga ki te hanga ongā takirere pūrerehua, ngā takirere kuaha, metakirere tirotiro, ā, he matatau ki te urutau i ngā āhuatanga mahi o ngā rauemi hiri pēnei i te PTFE, EPDM, me te PFA. Kāore mātou e hanga i ngā takirere "ao", engari e whakapau kaha ana mātou ki te whakarato i te tikanga hiri tino pakari me te tino ohanga mō ia o ō paipa. Mena he pātai āu mō te kōwhiringa,TWSKua rite te tīma hangarau ki te tirotiro tika i tō manawa.
Wā tuku: Hōngongoi-06-2026
