Ngokuthelekisa ukusebenza kwe-PTFE kunye nezinye iiplastiki, eli nqaku libonisa iingxaki ekusetyenzisweni kwe-PTFE kubunjineli bomatshini kwaye lizisa i-PTFE eguquliweyo ezaliswe kwii-rails zesikhokelo sokutyibilika, iindawo ezixubileyo, izitywina, iindawo ezichasene ne-corrosive, izinto zokwakha, oomatshini bezolimo. imathiriyeli, kunye nezinye izicelo, kunye nethemba lokusetyenziswa koomatshini abatsha.Ngokuthelekisa ukusebenza kwe-PTFE kunye nezinye iiplastiki, eli nqaku libonisa iingxaki ekusetyenzisweni kwe-PTFE kubunjineli bomatshini kwaye lizisa i-PTFE eguquliweyo ezaliswe kwii-rails zesikhokelo sokutyibilika, iindawo ezixubileyo, izitywina, iindawo ezichasene ne-corrosive, izinto zokwakha, oomatshini bezolimo. imathiriyeli, kunye nezinye izicelo, kunye nethemba lokusetyenziswa koomatshini abatsha.

Ngokuthelekisa ukusebenza kwe-PTFE kunye nezinye iiplastiki, eli nqaku libonisa iingxaki ekusebenziseni i-PTFE kubunjineli boomatshini kwaye yazisailungisiwe PTFEzizaliswe ngoololiwe bokutyibilika, iinxalenye ezikhubekisayo, izitywini, iindawo ezichasene nomhlwa, izinto zokwakha, izixhobo zoomatshini bezolimo, nezinye izinto ezisetyenziswayo, kunye nethemba lokusetyenziswa koomatshini abatsha.

I-PTFE resin yaphuhliswa okokuqala ngusokhemisti waseMelika uGqr Plunket ngo-1938, kwaye imveliso yoshishino yaphunyezwa kumazwe aphesheya ngeminyaka yoo-1950.ilizwe lam lafakwa ngokusemthethweni kwimveliso ngeminyaka yoo-1960.I-PTFE yaziwa njenge "King of Plastics", kwaye isetyenziswa ngokubanzi kwiinkalo ezahlukeneyo kwiipropati zayo ezizodwa.Inokumelana nobushushu obuphezulu, i-non-oxidation, ukunganyibiliki, ngakumbi uzinzo olululo lweekhemikhali, kunye nepropathi egqwesileyo ye-dielectric, iyenza ibe yenye yezinto ezibalulekileyo ezibaluleke kakhulu phantse kuwo onke amacandelo oshishino ikakhulu kumashishini ekhemikhali kunye noomatshini.

1. Ukuzithambisa

Umlinganiso wokukhuhlana we-PTFE uncinci kunezinye iiplastiki zobunjineli.Ngoyena mlinganiso usezantsi wokukhuhlana phakathi kwemathiriyeli esebenzayo yomphezulu wokutyibilika.Yimathiriyeli efanelekileyo yokuthambisa.

2. Ukumelana nemichiza

Ngenxa yokuba i-PTFE ayinayo i-double bonds kunye ne-branched chains kwisakhiwo sayo se-molecular kunye ne-crystallization ephezulu, inokumelana neekhemikhali ezibalaseleyo kwaye iyona nto ingcono kakhulu phakathi kweeplastiki zobunjineli ezaziwayo.Ayidibanisi ne-acids egxininisiweyo, i-acids dilute, i-alkali egxininisiweyo, kunye ne-oxidants eyomeleleyo nakwimimandla ephezulu yobushushu.Ayiyi kugqwala nokuba ibilisiwe, kwaye ayinasiphumo kuninzi lwezinyibilikisi ezifana ne-alcohols, nokuba kunye nee-ketones.

3. Ukufunxwa kwamanzi

I-PTFE inezinga eliphantsi kakhulu lokufunxa amanzi, elilingana ne-UHMWPE kwaye ayidumbi emanzini.

4. Uluhlu olubanzi lweqondo lokushisa eliphezulu neliphantsi

I-PTFE ingasetyenziswa ngokuqhubekayo ixesha elide phakathi koluhlu lwama-200% ukuya kuma-260%.Naphantsi kweqondo lobushushu eliphantsi le-200℃, ayibi brittle, kwaye inokugcina iqondo elithile lokuguquguquka.

5. Ayincangathi

I-PTFE yimathiriyeli eyomeleleyo enamandla angaphantsi komhlaba ngoku.Ukunyanzeliswa komphezulu ngu-0.019N / m kuphela.Phantse zonke izinto eziqinileyo azikwazi ukunamathela kumphezulu wayo.

6. Ukunxiba ukuxhathisa

I-Teflon ecocekileyo ayixhathisi kakhulu, kodwa ukongezwa kwezihluzi ezahlukeneyo kwiTeflon kuphucula ukuxhathisa ukunxiba ngokumangalisayo, kwaye iyaxhathisa ngakumbi kunezinye izinto eziqhelekileyo ezisetyenziswa njengeendawo zokukhuhlana (ezifana nentsimbi kunye nobhedu).

7. Ucoceko kwaye ungenayo ityhefu

I-PTFE icocekile kwaye ayinayo ityhefu, iyahlangabezana nemigangatho yococeko, kwaye inokunxibelelana nokutya kunye namayeza.

8. Ukusebenza kakuhle kokufakelwa kombane

I-PTFE yinto ephezulu kakhulu engeyiyo i-polar eneempawu ezibalaseleyo ze-dielectric, i-voltage yayo yokuphuka yi-25-40KV/mm;Ukuxhathisa kukhulu ngokugqithisileyo, kwaye ukuchasana komthamo othile kusephezulu njenge-1061 ~ ku-200.

9. Ayinakutsha ngokupheleleyo

Indawo yokunyibilika ye-PTFE yi-327, ephezulu kunezinye iipholima ngokubanzi.Kwi-260%, amandla ayo okuphuka ahlala e-5 MPa (malunga ne-1/5 yeqondo lokushisa kwegumbi), kwaye amandla ayo aguquguqukayo afikelela kwi-1.4 MPa.Inexabiso elibaluleke kakhulu elingenakutsha, isalathisi sayo se-oksijini esilinganiselwe singaphezulu kwe-95, sinokunyibilika kuphela emlilweni, akukho amaconsi akhiweyo, kwaye ekugqibeleni, i-carbonized kuphela.

10.Ukumelana nokuguga okugqwesileyo kunye nokumelana nemitha

I-PTFE ayizinzile kuphela ngokusemgangathweni kumaqondo aphantsi kunye aphezulu, kodwa ukusebenza kwayo kwakhona ayitshintshanga phantsi kweemeko ezingqongileyo, kwaye ayihlaselwa yi-microorganisms kwimo efumileyo, kwaye inokhuseleko oluphezulu kwimitha eyahlukeneyo.

11. Ezinye iipropati

I-PTFE inobulukhuni obuphantsi kunye nokuthambile okuthambileyo, kwaye iyakwazi ukufunxa kwaye iqulethe izinto zangaphandle, kulula ukuyiqhuba.

1. Injongo kunye nendlela yokuguqulwa

Nangona i-PTFE ineempawu ezininzi ezibalaseleyo, ikwaneentsilelo ezininzi.Xa kuthelekiswa nezinye iiplastiki zobunjineli, iipropathi zayo zoomatshini azilunganga kakhulu;i-coefficient yokwandiswa komgca mkhulu;izinga lokucutheka lokubumba likhulu, kwaye inkqubo yesibini inzima;ubunzima buphantsi kwaye buxhathisa ukusebenza kakubi;ukuxhathisa okungahambi kakuhle, ukuhamba lula okubandayo;ukungahambi kakuhle kwe-thermal kunye namaxabiso aphezulu.Ezi ziphene zinciphisa ukusetyenziswa kwayo okubanzi ukuya kumlinganiselo othile.Injongo yokuguqulwa kukuphucula iimpawu zoomatshini;ukuphucula ukumelana nokunxiba;ukunciphisa ukwandiswa komgca;ukwandisa ulwelo, njl.

2. Iintlobo kunye nemisebenzi yezilungisi zokugcwalisa

Ukuzalisa kunye nokuguqula i-PTFE nge-glass fiber, i-graphite, i-molybdenum disulfide, i-silicon dioxide, i-aluminium oxide, i-bronze powder, i-carbon fiber, njl.Ukuqina kwe-PTFE okudityaniswe yi-fiber yeglasi ngokubanzi kunokunyuswa nge-10%, kwaye ukuxhathisa ukunxiba kunokunyuswa ngamaxesha angaphezu kwama-500.Ukumelana nokunyuka kunye nokuchasana nokuhamba okubandayo kuphuculwe kakhulu kwaye kuphuculwe;ukongezwa kwe-molybdenum disulfide kunceda Ukuqina kunye nokuqina kweemveliso ze-PTFE ziphuculwe, kwaye ukunxiba kokuqala kuyancipha;I-PTFE ezaliswe yigraphite inokumelana nekhemikhali ebalaseleyo, i-compression creep, kunye ne-thermal conductivity engcono;I-PTFE ezaliswe ngumgubo wobhedu inokuphucula ukuxhathisa kwemveliso yokukhusela, amandla abanzi, ubulukhuni, kunye nokuzinza komda.

1. Isilayidi sikaloliwe

Izikhokelo ze-Sliding zihlala zisisiseko sofakelo lwezixhobo zomatshini wokusika isinyithi, izixhobo zonyango, kunye nezinye iinkqubo ezininzi kunye nezixhobo, isiseko sokuchaneka kunye nesiseko sokubeka, okanye uphawu lobomi bala matshini, kwaye ziyinxalenye ebalulekileyo. lomatshini.Kumashishini okuvelisa izixhobo zoomatshini, uninzi lwezikhokelo zikaloliwe ngababini bobuchwephesha bentsimbi, intsimbi ecinyiweyo, intsimbi ecinyiweyo, intsimbi ecinyiweyo, njl. inkulu, ayinakumelana nokunxiba, ayikwazi ukusebenza phantsi kwengxabano eyomileyo, kwaye igaqa ngesantya esiphantsi kunye nokufuduka okuncinci.Oku kukhasa kuya kuchaphazela ukuchaneka kokutya kunye nokuchaneka kwezixhobo zoomatshini, ngakumbi izixhobo zomatshini ezichanekileyo.Ukuxhomekeka.Xa kusetyenziswa isikhokelo se-PTFE esipheleleyo, uzinzo olusezantsi lwesantya sesixhobo somatshini luphuculwe kakhulu.Ngenxa yokuba umzila wesikhokelo seplastiki uneempawu zezinto zangaphandle ezingcwatyelwe, iifayili zentsimbi kunye neengqungquthela zesanti zinokufakelwa kwiplastiki ukuze zigweme ukugqoka kunye nokukrazula kwayo, ukukhusela umzobo kunye nokukrazula kwendawo yesinyithi, kwaye inokukhusela umzila wesikhokelo sombhede.I-PTFE equlethe umgubo wobhedu kunye nezinye izihluzi zineempawu ezibalaseleyo zokukhuhlana.Emva kokuba ifilimu yokudlulisa yenziwe kwindawo yesinyithi, i-coefficient ye-friction iyancipha kakhulu, amandla okuthwala ifilimu yokudlulisa iphuculwe kakhulu, kwaye ubomi obusebenzayo obusebenzayo bukwandiswa.Ukuba ihambelana nesikhokelo sesixhobo somatshini wesinyithi, i-coefficient yayo ye-friction ihlala ihleli njengoko isantya sokuslayida sikhula.Ke ngoko, olu hlobo lokuzaliswa kwesikhokelo sikaloliwe se-PTFE aluyi kuvelisa izinto ezirhubuluzayo ngesantya esiphantsi kunye nesondlo esincinci, kwaye sikwanayo nokufunxa ukungcangcazela kunye nokusebenza komcuphi.I-coefficient ye-friction ye-PTFE yesikhokelo sikaloliwe yi-0.05 xa i-friction eyomileyo, kunye ne-0.03 xa kukho i-oil lubrication, kungakhathaliseki ukuba umzila wesikhokelo somatshini womatshini uneoli yokuthambisa okanye ayikho, intshukumo yayo yokusebenza igudileyo ngokusemandleni.Xa uloliwe we-PTFE kufuneka ulungiswe emva kokuba unxitywe, umsebenzi wokulondoloza usindisa abasebenzi kakhulu kwaye unokutshintshwa.Kulula ukugcina ukuchaneka kwe-dimensional.Ngokukodwa xa umzila wesikhokelo wonakele kwaye ufuna ukulungiswa, kunenzuzo ngakumbi ukusebenzisa iplastiki ukulungiswa kwendawo.

2. Amalungu efriction

Kukho iindawo ezininzi zokukhuhlana kwe-PTFE eziqhele ukusetyenziswa kubunjineli boomatshini, kubandakanya iibheringi, imisesane yepiston, kunye negiya.I-PTFE sisixhobo esifanelekileyo sezangqa zepiston kwaye isetyenziswa kakhulu kwiicompressors zomoya kunye nezicinezeli zamanzi.Iringi yepiston ye-PTFE isebenza njengeringi yocinezelo ukubhloka ulwelo okanye iigesi.Ngokuqhelekileyo isetyenziswe kwiimeko apho i-lubricants okanye ezinye iimeko ezinzima zingenakusetyenziswa, ezifana nokugqwala okukhulu kunye neemfuno ezikhuselekileyo zokhuseleko, kunokunciphisa kakhulu ukugqoka kunye nokuphindaphinda ukudinwa kwe-cylinder udonga lwangaphakathi Inani lemingxuma yandisa ubomi benkonzo ye-cylinder.Ngokomzekelo, kukho isando somphunga wedesktop, esasisebenzisa intsimbi yentsimbi ekuqaleni.Ngethuba lemveliso yesibini yokutshintsha, phantsi kweemeko eziqhelekileyo, udonga lwangaphakathi lwe-cylinder lunxiba ukuya kwi-7-9ram emva kwesiqingatha sonyaka, intsimbi yensimbi ishukunyiswa kwiiveki ezi-2 ukuya kwezi-3, kwaye ngamanye amaxesha inokuphuka.Iringi yepiston yavala udonga lwangaphakathi lwesilinda kwaye isilinda kwafuneka itshintshwe.Xa usebenzisa i-PTFE ezaliswe inyanga, udonga lwangaphakathi lwe-cylinder lunxiba i-2mm kuphela, kwaye emva kweenyanga ezili-10, ukunxiba kuphela kwe-3mm, kwaye ubomi bandiswa ngama-4 ukuya kwamaxesha ama-5 okanye nangaphezulu.Phantse zonke iiringi zepiston zidlala indima yokutywina ekubuyiseleni ukunyakaza kwaye ziqale rhoqo, ngoko ke i-coefficient ye-static friction iyadingeka ukuba ibencinci.Ngaphantsi kwemithwalo emincinci, i-static friction coefficient ye-PTFE yi-25% ukuya kwi-75% ephantsi kunezangqa zepiston zezinye izinto.Okukhona umthwalo mkhulu, kokukhona ukongama kwawo.Oku kunobungangamsha obungenakuthelekiswa nanto ekuqaliseni kokukhanya kunye nokukhanya okubuyelanayo.Umphumo kukunciphisa ukusetyenziswa kwamandla, ukunciphisa ukungcangcazela, kunye nengxolo, ekhuthaza ukukhuselwa kwendalo.Kwangaxeshanye, i-PTFE ingasetyenziswa njengeegiya kunye neebheringi zothumelo lwentshukumo kunye namacandelo othumelo lwamandla kuluhlu olubanzi lweemeko zokusebenza kunye nemekobume erhabaxa kakhulu yelaphu elikhanyayo, ukuprinta kunye nokudaya, ukwenza iphepha, kunye namashishini okutya.

3. Amatywina

Ukusetyenziswa kwefilimu ye-PTFE edityanisiweyo kumphezulu wezinto zokutywinwa kwerabha kunokuphucula ukunyanzeliswa kwe-solvent kunye nokumelana nemidiya ye-rubber yetywina, kwaye ixabiso liphantsi.Isetyenziswe kwiimfuno zokutywinwa kwezihlandlo ezahlukahlukeneyo ezinzima.Isixhobo sokutywina se-FE esigcweleyo sinokuxhathisa okuphezulu kunye nobushushu obuphantsi kwaye okwangoku yeyona nto ithatha indawo yokutshintsha imathiriyeli yegesi ye-asbestos.I-carbon fiber-yomelezwePTFE itywinaIzinto eziphathekayo zineempawu zamandla aphezulu, imodyuli ephezulu, ukuxhathisa ukukhathala, ukuxhathisa ukukhwela, ukuhanjiswa kwe-thermal ephezulu, i-coefficient ephantsi yokwandiswa kwe-thermal, kunye ne-friction.Ezi zakhiwo zibanzi azihambelani naluphi na uhlobo lwezixhobo zokutywina kwaye zifanelekile izinto zokutywina eziphambili.

4. Amacandelo e-Anti-corrosion

I-PTFE elungisiweyo inozinzo olulungileyo lwemichiza kwi-asidi, i-alkali, i-salti ye-corrosion media, kwaye inokutshintsha i-ceramics yensimbi yobunjineli obuchasayo, ilungele kakhulu ubushushu obuphezulu kunye nezihlandlo ezinamandla zokubola, ezifana nezixhobo zokulwa nokubola, imibhobho kunye nokufakelwa kwizityalo zemichiza. .Izixhobo zokukhuhlana, iivalvu, iimpompo, izitshintshi zobushushu, iipleyiti ezinamanzi, kunye nezixhobo zokucoca kumajelo eendaba ezonakalisa kakhulu, i-lining, kunye nokwaleka kwezixhobo zemichiza.

5. Ukugquma kombane

I-PTFE elungisiweyo isetyenziswa ngokubanzi njengomaleko okhuselayo kwiintonga zocingo, iityhubhu, kunye neeteyiphu zezinto ezikrwada.Ikwasetyenziswa njenge-insulator kwiisokethi ezahlukeneyo, ukuxhasa, izixhobo ze-microwave ezisebenza rhoqo, kunye nee-electrode kumzi-mveliso we-electrochemical.

6. Izinto zokwakha

Ilaphu leglasi elifakwe kwi-PTFE dispersion yeyona nto ibalaseleyo yokwakha inwebu.Inokuhanjiswa kokukhanya okugqwesileyo, okunokunciphisa iindleko zokukhanyisa kunye ne-air conditioning.Ukuqina kungaphezulu kweminyaka engama-20.Inokunciphisa iindleko zokupeyinta kunye nokucoca.Ixesha lokwakha uphahla olukhulu lwesakhelo lingafinyezwa.I-50%, inokunciphisa iindleko zezinto eziphahleni nge-50% kunye neendleko zokwakhiwa kwe-20%.Ngoko ke, ifanelekile kwizinto zokuphahla iinkundla zangaphandle, iinkundla, iziteyimu, i-skating rinks, amachibi okubhukuda, imiboniso emikhulu, i-zoos kunye negadi zezityalo, izikhululo zokuhamba, njl.

7. Izongezo zeLubricant

Ngaphantsi kweemeko zokuthambisa, eyona ndlela isebenzayo yokunciphisa i-coefficient of friction kukukhetha izongezo ezifanelekileyo ze-lubricant.PTFE umatshini womgubosisidibaniso esiqinileyo esisetyenziswa ngokuqhelekileyo.Iimvavanyo zibonisa ukuba ukongeza inani elithile lezongezo eziqinileyo kwi-oyile ye-injini kunokonga ngokufanelekileyo malunga ne-5% ye-oyile ye-oyile ye-injini.

8. Izixhobo zoomatshini bezolimo

Ukusebenzisa i-self-lubricating, i-hard-adhesive kunye ne-resistant-resistant properties ye-PTFE ezaliswe, inokwenziwa ngokubanzi kwi-bulldozer plate lining, i-excavator bucket, kunye ne-internal liner yendawo yokulahla iloli, njl., ukwenzela ukuphucula ukusebenza kunye nokuzinza. yezinto zokuhambisa.

9. Izinto zemihla ngemihla

I-PTFE-coated ironworking surface zombini ayigugi kwaye inokumelana nokukhuhlana okuphantsi;i-PTFE-coated wok kunye ne-rice cooker ineempawu zokutya okungekho ntonga;Incakuba ibotshwe okanye iqatywe ngeIfilimu ye-PTFE, kwaye i-blade iqinile Xa izihlathi zihamba, ukuchasana kuncinci kuncinci kwesikhumba kwaye kuthambile.

10. Ukuphuhliswa kokusetyenziswa koomatshini abatsha

Ukongeza kwisicelo kunye neziphumo zophando zeoomatshini be-PTFEimboni, ngokuqwalasela zombini ukusebenza kwezinto kunye nesakhiwo, i-PTFE inamathemba abanzi kumashishini oomatshini boshishino lweemoto, izixhobo eziqhelekileyo, iinqanawa, i-aerospace, kunye namandla e-athomu, iyeza, ukukhuselwa kwendalo, njl.