Poyerekeza machitidwe a PTFE ndi mapulasitiki ena, nkhaniyi ikufotokoza zovuta zomwe zimagwiritsidwa ntchito pa PTFE mu zomangamanga zamakina ndipo imayambitsa PTFE yosinthidwa yodzazidwa ndi njanji zoyenda, zowonongeka, zisindikizo, mbali zowonongeka, zomangira, makina a ulimi. zipangizo, ndi ntchito zina, ndi ziyembekezo za ntchito makina atsopano.Poyerekeza machitidwe a PTFE ndi mapulasitiki ena, nkhaniyi ikufotokoza zovuta zomwe zimagwiritsidwa ntchito pa PTFE mu zomangamanga zamakina ndipo imayambitsa PTFE yosinthidwa yodzazidwa ndi njanji zoyenda, zowonongeka, zisindikizo, mbali zowonongeka, zomangira, makina a ulimi. zipangizo, ndi ntchito zina, ndi ziyembekezo za ntchito makina atsopano.

Poyerekeza momwe PTFE ndi mapulasitiki ena amagwirira ntchito, nkhaniyi ikuwonetsa zovuta zakugwiritsa ntchito PTFE muukadaulo wamakina ndikuyambitsakusinthidwa PTFEodzazidwa ndi njanji zotsetsereka, zogundana, zosindikizira, zoletsa kuwononga, zida zomangira, zida zamakina aulimi, ndi ntchito zina, ndi chiyembekezo chogwiritsa ntchito makina atsopano.

PTFE resin idapangidwa koyamba ndi katswiri wamankhwala waku America Dr. Plunket mu 1938, ndipo kupanga mafakitale kunakwaniritsidwa kunja kwa 1950s.dziko langa linakhazikitsidwa mwalamulo mu 1960s.PTFE imadziwika kuti "King of Plastics", ndipo imagwiritsidwa ntchito mosiyanasiyana pazinthu zake zapadera.Ili ndi kukana kutentha kwambiri, kusakhala ndi okosijeni, kusasungunuka, makamaka kukhazikika kwamankhwala abwino, komanso zinthu zabwino kwambiri za dielectric, zomwe zimapangitsa kuti ikhale imodzi mwazinthu zofunika kwambiri pafupifupi magawo onse amakampani makamaka m'mafakitale amankhwala ndi makina.

1. Kudzipaka mafuta

Mkangano wa PTFE ndi wocheperako kuposa mapulasitiki ena auinjiniya.Ndiwotsika kwambiri pakati pa zida zodziwika bwino zotsetsereka.Ndi mafuta abwino opangira mafuta.

2. Kukana mankhwala

Chifukwa PTFE ilibe zomangira ziwiri ndi unyolo wanthambi mu kapangidwe kake ka maselo ndi crystallization yapamwamba, imakhala ndi mphamvu yabwino kwambiri yolimbana ndi mankhwala ndipo ndiyo yabwino kwambiri pakati pa mapulasitiki odziwika bwino.Simalumikizana ndi zidulo zokhazikika, ma asidi osungunuka, ma alkali okhazikika, komanso ma oxidants amphamvu ngakhale m'malo otentha kwambiri.Sizidzawonongeka ngakhale itawiritsidwa, ndipo ilibe mphamvu ndi zosungunulira zambiri monga ma alcohols, mwina ndi ketoni.

3. Kuyamwa madzi

PTFE ili ndi madzi otsika kwambiri, omwe ndi ofanana ndi UHMWPE ndipo satupa m'madzi.

4. Kuchuluka kwa kutentha kwakukulu ndi kochepa

PTFE ingagwiritsidwe ntchito mosalekeza kwa nthawi yayitali mkati mwa 200% mpaka 260%.Ngakhale pansi pa kutentha kwa 200 ℃, sichimaphuka, ndipo chimatha kukhalabe ndi kusinthasintha.

5. Osamamatira

PTFE ndi chinthu cholimba chomwe chili ndi mphamvu zochepa kwambiri padziko lapansi pano.Kuvuta kwapamtunda ndi 0.019N/m yokha.Pafupifupi zipangizo zonse zolimba sizingagwirizane ndi pamwamba pake.

6. Valani kukana

Teflon yoyera ndiyosamva kuvala kwambiri, koma kuwonjezera kwa zodzaza zosiyanasiyana ku Teflon kumathandizira kukana kuvala kwambiri, ndipo ndi yosamva kuvala kuposa zida zina zomwe zimagwiritsidwa ntchito ngati zida zogundana (monga chitsulo choponyedwa ndi mkuwa).

7. Zaukhondo komanso zopanda poizoni

PTFE ndi yaukhondo komanso yopanda poizoni, imakwaniritsa miyezo yaukhondo, ndipo imatha kulumikizana ndi chakudya ndi mankhwala.

8. Kuchita bwino kwambiri kwamagetsi amagetsi

PTFE ndi zinthu zosagwirizana ndi polar zomwe zimakhala ndi dielectric zabwino kwambiri, mphamvu zake zowonongeka ndi 25-40KV/mm;kukana ndi kwakukulu kwambiri, ndipo kukana kwapadera kwa voliyumu kukadali kokwera mpaka 1061 ~ pa 200.

9. Zosayaka kwathunthu

Malo osungunuka a PTFE ndi 327, omwe ndi apamwamba kuposa ma polima ena onse.Pa 260%, mphamvu yake yosweka imakhalabe 5 MPa (pafupifupi 1/5 ya kutentha kwa chipinda), ndipo mphamvu yake yosinthika imafika ku 1.4 MPa.Ili ndi mtengo wapatali kwambiri wosayaka, chiwerengero chake chochepa cha okosijeni chili pamwamba pa 95, chimatha kusungunuka pamoto, palibe madontho omwe amapangidwa, ndipo pamapeto pake amangokhala carbonized.

10.Kukana kukalamba kwabwino kwambiri komanso kukana kwa radiation

PTFE sikuti imangokhala yokhazikika pamatenthedwe otsika komanso okwera kwambiri, koma magwiridwe akenso sasintha m'malo ovuta, ndipo samawukiridwa ndi tizilombo tating'onoting'ono m'malo achinyezi, ndipo amakhala ndi chitetezo chokwanira ku ma radiation osiyanasiyana.

11. Katundu wina

PTFE ali otsika kuuma ndi zofewa kapangidwe, ndipo amatha kuyamwa ndi muli zinthu zachilendo, n'zosavuta pokonza.

1. Cholinga ndi njira yosinthira

Ngakhale PTFE ili ndi makhalidwe abwino kwambiri, ilinso ndi zofooka zambiri.Poyerekeza ndi mapulasitiki ena a uinjiniya, mawonekedwe ake amakina siabwino kwambiri;coefficient ya kukula kwa mzere ndi yayikulu;akamaumba shrinkage mlingo ndi lalikulu, ndi processing yachiwiri ndi kovuta;kuuma ndi otsika ndi kuvala zosagwira ntchito bwino;osauka zokwawa kukana, mosavuta ozizira otaya;kusayenda bwino kwamafuta ndi mitengo yokwera.Zolakwika izi zimalepheretsa kugwiritsidwa ntchito kwake kwakukulu pamlingo wina.Cholinga cha kusinthidwa ndi kukonza makina;onjezerani kukana kuvala;kuchepetsa kukula kwa mzere;kuwonjezera fluidity, etc.

2. Mitundu ndi ntchito za zosintha zodzaza

Kudzaza ndi kusintha PTFE ndi galasi fiber, graphite, molybdenum disulfide, silicon dioxide, aluminium oxide, ufa wamkuwa, mpweya wa carbon, ndi zina zotero.Kuuma kwa PTFE kophatikizidwa ndi ulusi wamagalasi kumatha kuonjezeredwa ndi 10%, ndipo kukana kovala kumatha kuonjezedwa nthawi zopitilira 500.Kukana kwa zokwawa ndi kuzizira kozizira kumakula bwino ndikuwongolera;kuwonjezera kwa molybdenum disulfide kumathandiza Kuuma ndi kukhwima kwa mankhwala a PTFE kumapangidwa bwino, ndipo kuvala koyambirira kumachepetsedwa;PTFE wodzazidwa ndi graphite ali kwambiri kukana mankhwala, psinjika zikwawa, ndi bwino matenthedwe madutsidwe;PTFE yodzazidwa ndi ufa wamkuwa imatha kupititsa patsogolo kukana kwazinthu zodzitchinjiriza, mphamvu zonse, kuuma, komanso kukhazikika kwazithunzi.

1. Sitima yapamtunda

Maupangiri otsetsereka nthawi zambiri amakhala maziko a kukhazikitsa zida zachitsulo zodulira makina, zida zamankhwala, ndi machitidwe ena ambiri ndi zida, maziko a kulondola komanso maziko a malo, kapena chizindikiro cha moyo wa makinawa, ndipo ndi gawo lofunikira. wa makina.M'makampani opanga zida zamakina, zida zambiri zamakina owongolera njanji zimaponyedwa chitsulo, chitsulo chosungunuka, chitsulo chosungunuka, chitsulo chosungunuka, etc. chachikulu, sichimamva kuvala, sichingagwire ntchito pansi pa kukangana kowuma, ndikukwawa pa liwiro lotsika komanso kusamuka pang'ono.Kukwawa kumeneku kudzakhudza kulondola kwa chakudya komanso kulondola kwa zida zamakina, makamaka zida zamakina zolondola.Kudalilika.Pamene wodzazidwa PTFE kalozera ntchito, otsika-liwiro bata la chida makina bwino kwambiri.Chifukwa njanji yowongolera pulasitiki ili ndi mawonekedwe a zinthu zakunja zokwiriridwa, zosefera zachitsulo ndi tinthu tating'onoting'ono ta mchenga zimatha kuyikidwa mu pulasitiki kuti zisawonongeke komanso kung'ambika kwake, kuteteza kujambula ndi kukanda pamwamba pazitsulo, komanso kuteteza njanji yowongolera bedi.PTFE yokhala ndi ufa wamkuwa ndi zodzaza zina zimakhala ndi mikangano yabwino kwambiri.Pambuyo popanga filimuyo pazitsulo zachitsulo, kugunda kwachitsulo kumachepetsedwa kwambiri, mphamvu yonyamula filimu yosinthira imakula kwambiri, ndipo moyo wogwira ntchito umakulitsidwanso.Ngati ikugwirizana ndi chiwongolero cha zida zamakina achitsulo, kugundana kwake kumakhalabe kosasintha pomwe liwiro lotsetsereka likuwonjezeka.Chifukwa chake, njanji yamtunduwu yodzazidwa ndi PTFE sidzatulutsa zochitika zokwawa pa liwiro lotsika komanso chakudya chocheperako, komanso imakhala ndi mayamwidwe onjenjemera ndi magwiridwe antchito.The kukangana kokwana wa PTFE kalozera njanji ndi 0.05 pamene mikangano youma, ndi 0,03 pamene pali mafuta mafuta, mosasamala kanthu kuti makina opangira njanji ali ndi mafuta odzola kapena ayi, kayendetsedwe kake ka ntchito kumakhala kosavuta momwe angathere.Pamene PTFE kalozera njanji ayenera kukonzedwa pambuyo kuvala, ntchito yokonza ndi ntchito yopulumutsa kwambiri ndipo akhoza kusinthana.N'zosavuta kusunga dimensional kulondola.Makamaka pamene njanji yolondolerayo yawonongeka ndipo ikufunika kukonzedwa, ndi bwino kugwiritsa ntchito pulasitiki kukonzanso kwanuko.

2. Zigawo zokangana

Pali mbali zambiri zogundana za PTFE zomwe zimagwiritsidwa ntchito popanga makina, kuphatikiza ma bere, mphete za pistoni, ndi magiya.PTFE ndi chinthu chabwino kwa mphete za pistoni ndipo chimagwiritsidwa ntchito kwambiri mu ma compressor a mpweya ndi ma compressor amadzi.Mphete ya pistoni ya PTFE imakhala ngati mphete yopondereza kuti itseke zakumwa kapena mpweya.Amagwiritsidwa ntchito nthawi zambiri pamene mafuta odzola kapena zovuta zina sizingagwiritsidwe ntchito, monga zowonongeka kwambiri ndi zofunikira zachitetezo chapamwamba, zingathe kuchepetsa kwambiri kuvala ndi kubwereza mobwerezabwereza khoma lamkati la silinda Kuchuluka kwa mabowo kumawonjezera moyo wautumiki wa silinda.Mwachitsanzo, pali nyundo ya nthunzi pakompyuta, yomwe poyamba inkagwiritsa ntchito mphete yachitsulo.Pakusinthika kwachiwiri, nthawi zonse, khoma lamkati la silinda limavala mpaka 7-9ram pambuyo pa theka la chaka, mphete yachitsulo imagwedezeka kwa masabata awiri mpaka atatu, ndipo nthawi zina imatha kusweka.Mphete ya pisitoni inatsekereza khoma lamkati la silinda ndipo silinda inayenera kusinthidwa.Mukamagwiritsa ntchito PTFE yodzazidwa kwa mwezi umodzi, khoma lamkati la silinda limavala 2mm yokha, ndipo pakatha miyezi 10, kuvala ndi 3mm yokha, ndipo moyo umakulitsidwa ndi 4 mpaka 5 nthawi kapena kuposa.Pafupifupi mphete zonse za pistoni zimagwira ntchito yosindikiza kuti ziziyenda mobwerezabwereza ndipo zimayamba pafupipafupi, kotero kuti static friction coefficient iyenera kukhala yaying'ono.Pansi pa katundu waung'ono, static friction coefficient ya PTFE ndi 25% mpaka 75% kutsika kuposa mphete za pistoni za zipangizo zina.Kuchuluka kwa katundu, kumakhala bwinoko kupambana kwake.Izi zili ndi kupambana kosayerekezeka mu kuwala koyambira ndi kubwerezanso kupepuka.Chotsatira chake ndi kuchepetsa kugwiritsa ntchito mphamvu, kuchepetsa kugwedezeka, ndi phokoso, zomwe zimathandiza kuteteza chilengedwe.Pa nthawi yomweyo, PTFE angagwiritsidwe ntchito ngati magiya ndi mayendedwe kufala zoyenda ndi zigawo mphamvu kufala mu osiyanasiyana mikhalidwe ntchito ndi malo ovuta kwambiri kuwala nsalu, kusindikiza ndi utoto, mapepala kupanga, ndi mafakitale chakudya.

3. Zisindikizo

Ntchito PTFE filimu anaphatikizana pamwamba pa mphira kusindikiza zakuthupi akhoza kusintha zosungunulira kukana ndi TV kukana wa chisindikizo mphira, ndipo mtengo ndi otsika.Zakhala zikugwiritsidwa ntchito posindikiza zofunikira pazochitika zosiyanasiyana zovuta.Zida zosindikizira za FE zodzaza ndizomwe zimakhala zolimba kwambiri komanso zosatentha kwambiri ndipo pakadali pano ndizofunikira m'malo mwa zida zachikhalidwe za asbestos.Mpweya wowonjezera wa carbonChizindikiro cha PTFEzakuthupi zili ndi mawonekedwe amphamvu kwambiri, ma modulus apamwamba, kukana kutopa, kukana kukwawa, kukhathamiritsa kwamafuta ambiri, kuchuluka kwamafuta ochepa, komanso kukangana.Zinthu zonse izi sizingafanane ndi mtundu uliwonse wa zida zosindikizira ndipo ndi zida zabwino zosindikizira zapamwamba.

4. Anti-dzimbiri mbali

PTFE yosinthidwa ili ndi kukhazikika kwamankhwala kwa asidi, alkali, media corrosion media, ndipo imatha m'malo mwa zitsulo zopangira anti-corrosion engineering, makamaka yoyenera kutentha kwambiri komanso nthawi yamphamvu ya dzimbiri, monga zida zothana ndi dzimbiri, mipope, ndi zolumikizira muzomera zamankhwala. .Zida zowonongeka, ma valve, mapampu, zosinthira kutentha, mbale za porous, ndi zosefera zazinthu zowononga kwambiri, zokutira, ndi zokutira pazida zamankhwala.

5. Kutsekemera kwamagetsi

Kusinthidwa PTFE chimagwiritsidwa ntchito ngati wosanjikiza insulating kwa waya ndodo, machubu, ndi zopangira matepi.Imagwiritsidwanso ntchito ngati insulator yazitsulo zosiyanasiyana, zothandizira, zida za microwave zothamanga kwambiri, ndi ma electrode pamakampani opanga ma electrochemical.

6. Zida zomangira

Chovala chagalasi chomwe chimapangidwa ndi PTFE dispersion ndi chinthu chabwino kwambiri chomangira nembanemba.Ili ndi njira yabwino kwambiri yotumizira kuwala, yomwe ingachepetse mtengo wa kuyatsa ndi kuyatsa mpweya.Kukhalitsa ndi zaka zoposa 20.Zingathe kuchepetsa mtengo wojambula ndi kuyeretsa.Nthawi yomanga denga lalikulu la chimango ikhoza kufupikitsidwa.50%, imatha kuchepetsa mtengo wazinthu zapadenga ndi 50% komanso ndalama zonse zomanga ndi 20%.Chifukwa chake, ndizoyenera kupangira zida zofolera za makhothi akunja, mabwalo, mabwalo amasewera, malo ochitira masewera olimbitsa thupi, maiwe osambira, ziwonetsero zazikulu, zoo ndi minda yamaluwa, malo okwerera mayendedwe, ndi zina zambiri.

7. Mafuta owonjezera

Pansi pamikhalidwe yamalire, njira yabwino kwambiri yochepetsera mikangano ndikusankha zowonjezera zopangira mafuta, komansoPTFE ufa makinandi chowonjezera cholimba chomwe chimagwiritsidwa ntchito.Zoyeserera zikuwonetsa kuti kuwonjezera zina zowonjezera zolimba kumafuta a injini kumatha kupulumutsa pafupifupi 5% yamafuta amafuta a injini.

8. Zida zamakina aulimi

Pogwiritsa ntchito zodzitchinjiriza, zomatira zolimba komanso zosagwirizana ndi PTFE yodzazidwa, imatha kupangidwa mochulukira kukhala zomangira mbale za bulldozer, chidebe chofufutira, ndi liner wamkati wa chipinda chotayiramo magalimoto, ndi zina zambiri, kuti apititse patsogolo kugwira ntchito bwino komanso kukhazikika. za kutumizira zinthu.

9. Zida za tsiku ndi tsiku

PTFE-yokutidwa ndi ironworking pamwamba ndi zonse kuvala zosagwira ndipo ali otsika kukana kukangana;PTFE- TACHIMATA wok ndi mpunga cooker ndi makhalidwe a sanali ndodo chakudya;tsambalo limamangidwa kapena limakutidwa ndi aChithunzi cha PTFE, ndipo tsamba ndi lolimba Pamene masaya akuyenda, kukana kumakhala kochepa pakhungu komanso kofewa.

10. Kupanga makina atsopano ogwiritsira ntchito

Kuwonjezera pa ntchito ndi zotsatira za kafukufuku waPTFE makinamakampani, poganizira zonse zakuthupi ndi kapangidwe, PTFE ali ndi chiyembekezo chotakata mu makina makampani a makampani magalimoto, zida ochiritsira, zombo, Azamlengalenga, ndi mphamvu atomiki, mankhwala, kuteteza chilengedwe, etc.