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Hejuru ya temp PTFE iramba?
2026-02-10
Reka tube impamo, iyo umuntu abajije ibijyanye na temp ndende ya PTFE iramba, mubisanzwe baba bashushanya kashe yubumaji ikora 500 ° F ubuziraherezo. Aho niho hantu hambere tubona gukandagira. PTFE nibyiza, ariko temp yo hejuru irasa, kandi kuramba biterwa nibyo usaba gukora. Nibikomeza gusiganwa ku magare? Haba hari imiti igaragara hejuru yubushyuhe? Cyangwa ni igihagararo gusa, gishyushye? Igisubizo gihindura byose.
Ubushyuhe bwo hejuru bwo kwibeshya hamwe nukuri kubintu
PTFE yera itangira kunyerera cyane hejuru ya 400 ° F (hafi 204 ° C). Urashobora kubona urupapuro rwerekana ko rukoreshwa kugeza kuri 500 ° F (260 ° C), kandi mubuhanga, ntabwo bizahita bishonga. Ariko kuri iyo mipaka yo hejuru, imiterere yumubiri yoroshye. Igipapuro gishobora gutemba, bivuze ko gihinduka buhoro buhoro munsi yumutwaro wa bolt, biganisha kumuruhuko no gutemba. Rero, kuramba kuri 250 ° C nikibazo cyigihe nigitutu, ntabwo byoroshye yego / oya.
Ndibuka umushinga kumurongo wa chimique hamwe nogusukura rimwe na rimwe. Ubushyuhe bwazamuka kuri 230 ° C mugihe gito. Twakoresheje a PTFE, kandi cyakoze… amezi agera kuri atatu. Noneho kumeneka byatangiriye kumyobo ya bolt. Ikibazo nticyari ubushyuhe bwo hejuru kuri buri mwanya, ahubwo cyasubiwemo nubushyuhe bwumuriro hamwe no kuzunguruka kwa flange mugihe cyo guhindagurika. Ibikoresho byatakaje imbaraga.
Niyo mpamvu amanota yuzuye ya PTFE aje gukina. Ibikoresho nkibirahuri byuzuye cyangwa karuboni yuzuye PTFE biteza imbere guhangana cyane. Barashobora gukora imitwaro ihanitse yubushyuhe bwo hejuru, bakongerera igihe cya serivisi. Ariko nubwo bimeze bityo, ucuruza bimwe mubintu byiza bya PTFE birwanya imiti. Buri gihe ni ubwumvikane.
Uburyo bwo Kunanirwa Wiga Gusa Kubona
Kurenga kunyerera, umwicanyi munini ni degradation. Kumara igihe kinini kumpera yo hejuru yubushyuhe butera PTFE gucika intege. Ntabwo ishonga; itangira gucika, cyane cyane mugihe cyo guhagarika iyo ibintu bikonje. Uzasanga gaseke yamenaguye mo ibice iyo ufunguye flange.
Indi ngingo ififitse ni flange hejuru yo kurangiza. Kuri serivisi yubushyuhe bwo hejuru, serivise irangiye irashobora gutomorwa neza kurumwa neza. Ariko hamwe nibikoresho byoroshye nka PTFE, izo seriveri zirashobora guca mu gaseke mugihe, cyane cyane mugihe cyo kwagura ubushyuhe / kugabanuka. Nahinduye kuri gasike-igikomere hamwe na PTFE yuzuza ibibazo nkibi, aho guhinduranya ibyuma bifata imashini, kandi PTFE itanga kashe. Byiza cyane kuramba.
Umuvuduko nikindi gice cyikigereranyo. Umuvuduko mwinshi, umuvuduko ukabije wumurongo urashobora kureka igituba cya PTFE mumyaka yashize. Ubushyuhe bumwe hamwe numuvuduko mwinshi wimbere, cyane cyane niba ari cycle, bizagabanya cyane ubuzima bwabwo. Umutwaro ku gasi uhora uhinduka, ukora ibikoresho.
Guhitamo Gufatika no Kugwa
Ubunini bwa gasike bufite akamaro kuruta uko abantu babitekereza. Kuri porogaramu zohejuru-temp, nkunda kugenda nabi. Igipimo cya 1.5mm gifite ibikoresho bike byo kunyerera no kugoreka kurenza 3mm. Irasaba kandi umutwaro muremure wa kashe kugirango ubanze ushireho ikimenyetso, biganisha ku kintu gikurikira gikurikira: uburyo bwo guhinduranya.
Niba utabonye umutwaro wa bolt uhereye mugitangira, ibagirwa igihe kirekire temp imikorere. Munsi ya torquing, kandi kashe yambere irakennye. Kurenza urugero, kandi wahagaritse PTFE birenze gukira, kwihuta kunyerera. Gukoresha kalibatifike ya torque hamwe nuburyo bukwiye bwambukiranya imipaka ntabwo ari imyitozo myiza gusa; ni itandukaniro hagati ya gaze imara umwaka umwe cyangwa itatu.
Ibi twabyize inzira igoye kuri banki yo guhanahana ubushyuhe. Itsinda ryo kubungabunga ryakoresheje ingaruka zo kwihuta. Igipapuro (ubwoko bwa PTFE bwongerewe imbaraga) cyasohotse mugihe cyibyumweru nyuma yubushyuhe bwo gukora. Umutwaro utaringaniye, uremereye waremye aho uhangayikishije ubushyuhe burangiye.
Igihe cyo Kubikoresha nigihe cyo kugenda
None, nihehehejuru ya temp ya PTFE yumvikana? Kuri serivisi zihoraho, nagira amakenga hejuru ya 200 ° C keretse niba ari amanota yuzuye kandi igitutu ni gito. Ahantu heza haribikorwa byangirika aho ubushyuhe buringaniye ariko imiti irinda elastomers. Kurugero, aside ishyushye itemba kuri 150-180 ° C.
Kubushyuhe bwukuri bwo hejuru, flanges yumuvuduko mwinshi, nko mumashanyarazi, urareba grafite, igikomere-gikomere, cyangwa ubwoko bwimpeta. PTFE ntabwo ari umukinnyi uhari. Nabonye spes ziva mubigo byubwubatsi zita buhumyi PTFE kugirango irwanye ruswa kumurongo wa 280 ° C, kandi ni resept yo guhagarika. Ugomba gusubiza inyuma hamwe nibikoresho bigarukira.
Rimwe na rimwe, igisubizo kirahari. Umushinga nakoranye nuwabitanze nka Hamagara zitai yihuta ukora co., Ltd. (bashingiye i Yongnian, ihuriro rinini ryihuta muri Hebei, urashobora kubisanga kuri zitiFasTeners.com) ntabwo yarimo gasketi gusa ahubwo sisitemu yose ya bolting. Twari dukeneye imbaraga-zohejuru zishobora kugumana umutwaro mubushyuhe kugirango gaze ya PTFE ikore. Ni sisitemu, ntabwo ari ikintu cyitaruye.
Ikirebire-kirekire Reba nubundi buryo
Kuramba ni hafi kubiciro byose. Igiciro cya PTFE gihenze cyananiranye mumezi 6 gitwara amafaranga menshi mumurimo no kumasaha arenze igiciro gihenze cya spiral-igikomere kimara imyaka 5. Ugomba gushira mubikorwa gahunda yo kubungabunga no kunegura umurongo.
Kubasimbuye flanges zihari, burigihe gupima icyuho cyubushyuhe bwo gukora niba ubishoboye. Flanges ishaje. Igipapuro ushyiraho imbeho kigomba gufunga ubushyuhe, muri geometrie igoramye. Rimwe na rimwe, uburyo buramba cyane ni ugukosora flange mbere.
Mugusoza, gusubiza biguhatira kubaza ibindi bibazo icumi. Ni ubuhe buryo nyabwo bwerekana ubushyuhe? Ni ubuhe buryo? Imiterere ya flange niyihe? Nta gisubizo kimwe, gusa urutonde rwubucuruzi rushingiye kuburambe-kandi rimwe na rimwe, kunanirwa kera. Intego ntabwo ari iy'iteka ryose; ni kubintu byateganijwe, byizewe intera ushobora guteganya hafi. Kandi kubwibyo, gusobanukirwa imipaka yibintu bifatika kwisi nicyo kintu cyonyine gikora.
![[Amatangazo yo kohereza] Bolt zoherejwe muri Koreya yepfo.](https://www.zitaifasteners.com/wp-content/uploads/Gasket-Series518-1.jpg)
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