Nekuenzanisa mashandiro ePTFE nemamwe mapurasitiki, chinyorwa ichi chinonongedza matambudziko mukushandiswa kwePTFE muinjiniya yekugadzira uye inotanga iyo yakagadziridzwa PTFE yakazadzwa neinotsvedza njanji, friction parts, seals, anti-corrosive parts, kuvaka, michina yekurima. zvinhu, uye mamwe maapplication, uye tarisiro yemashini matsva ekushandisa.Nekuenzanisa mashandiro ePTFE nemamwe mapurasitiki, chinyorwa ichi chinonongedza matambudziko mukushandiswa kwePTFE muinjiniya yekugadzira uye inotanga iyo yakagadziridzwa PTFE yakazadzwa neinotsvedza njanji, friction parts, seals, anti-corrosive parts, kuvaka, michina yekurima. zvinhu, uye mamwe maapplication, uye tarisiro yemashini matsva ekushandisa.

Nekuenzanisa mashandiro ePTFE nemamwe mapurasitiki, chinyorwa ichi chinonongedza matambudziko mukushandiswa kwePTFE mukugadzira mainjiniya uye chinozivisayakagadziridzwa PTFEakazadzwa nenjanji dzinotsvedza, zvikamu zvinokwesha, zvisimbiso, zvikamu zvinodzivirira kupisa, zvekuvakisa, michina yekurima, uye mamwe maapplication, uye tarisiro yekushandiswa kwemichina mitsva.

PTFE resin yakatanga kugadzirwa neAmerican chemist Dr. Plunket muna 1938, uye kugadzirwa kwemaindasitiri kwakawanikwa kunze kwenyika muma1950s.nyika yangu yakaiswa zviri pamutemo mukugadzirwa muma1960s.PTFE inowanzo zivikanwa se "King of Plastics", uye inoshandiswa zvakanyanya munzvimbo dzakasiyana siyana kune yayo yakasarudzika.Iyo ine yakanyanya-tembiricha kuramba, isiri-oxidation, insolubility, kunyanya yakanaka kugadzikana kwemakemikari, uye yakanyanya kunaka dielectric zvivakwa, zvichiita kuti ive imwe yezvinhu zvakakosha zvakakosha kune angangoita ese maindasitiri maindasitiri kunyanya mumaindasitiri emakemikari nemakanika.

1. Kuzvinatsa

Iko friction coefficient yePTFE idiki pane mamwe mapurasitiki einjiniya.Ndiyo yakaderera friction coefficient pakati pezvinozivikanwa zvinoshanda zvinotsvedza pamusoro pezvinhu.Icho chinhu chakakodzera chekuzora.

2. Kuramba kwemakemikari

Nekuti PTFE haina mbiri mabhondi uye branched cheni mune yayo molecular chimiro uye yakakwirira crystallization, ine yakanakisa makemikari kuramba uye ndiyo yakanyanya kunaka pakati peanozivikanwa einjiniya mapurasitiki.Iyo haidyidzane neyakaomeswa acids, dilute acids, concentrated alkalies, uye yakasimba oxidants kunyangwe munzvimbo dzinopisa.Iyo haizove yakasvibiswa kunyangwe yakabikwa, uye haina mhedzisiro nezvinonyungudutsa zvakawanda zvakaita sedoro, pamwe nemaketone.

3. Kunwa mvura

PTFE ine mwero wakadzika kwazvo wekutora mvura, wakaenzana neUHMWPE uye hauzvimbe mumvura.

4. Yakakura yakawanda uye yakaderera tembiricha

PTFE inogona kushandiswa nguva dzose kwenguva yakareba mukati mehuwandu hwe200% kusvika 260%.Kunyangwe pasi petembiricha yakaderera ye200 ℃, haina brittle, uye inogona kuchengetedza imwe nhanho yekushanduka.

5. Haana kunamira

PTFE chinhu chakasimba chine simba diki repamusoro parizvino.Kushushikana kwepamusoro kunongova 0.019N/m.Zvinenge zvinhu zvose zvakasimba hazvigoni kunamatira pamusoro payo.

6. Pfeka kuramba

Teflon yakachena haina kunyanya kupfeka, asi kuwedzerwa kwemafirita akasiyana-siyana kuTeflon kunonatsiridza kusakara zvakanyanya, uye inoramba kupfeka kupfuura zvimwe zvinhu zvinowanzoshandiswa sezvikamu zvekukwesha (zvakadai sesimbi yakakandwa nemhangura).

7. Hutsanana uye kwete-chepfu

PTFE ine hutsanana uye haina chepfu, inosangana nehutsanana, uye inogona kubata chikafu nemishonga.

8. Yakanakisa magetsi ekudzivirira kushanda

PTFE imhando yepamusoro isiri-polar ine yakanakisa dielectric properties, yayo breakdown voltage is 25-40KV/mm;kupikisa kwakakura zvakanyanya, uye vhoriyamu-chaiyo kuramba ichiri yakakwira se1061 ~ pa200.

9. Kusapisa zvachose

Nzvimbo yakanyungudika yePTFE i327, iyo yakakwirira kupfuura mamwe mapolymers.Pa260%, simba rayo rekuputsika rinoramba riri 5 MPa (inenge 1/5 yekushisa kwekamuri), uye simba rayo rekushanduka rinosvika 1.4 MPa.Iyo ine yakanyanya kukosha isina-kupisa, iyo shoma oksijeni index iri pamusoro pe95, inogona kungonyungudutswa pamoto, hapana madonhwe anoumbwa, uye pakupedzisira, inongove carbonized.

10.Excellent kuchembera kuramba uye nemwaranzi kuramba

PTFE haina kugadzikana chete pakadzika uye yakakwirira tembiricha, asi kuita kwayo zvakare hakuna kuchinjika pasi penzvimbo dzakaomarara, uye hairwiswe nema microorganisms munzvimbo ine hunyoro, uye ine dziviriro yakakura kubva kune akasiyana radiation.

11. Zvimwe zvinhu

PTFE ine kuomarara kwakaderera uye yakapfava magadzirirwo, uye inokwanisa kutora uye ine zvinhu zvekunze, zviri nyore kugadzirisa.

1. Chinangwa uye nzira yekugadzirisa

Kunyangwe PTFE iine akawanda akanakisa maitiro, ine zvakare yakawanda zvikanganiso.Kuenzaniswa nemamwe mapurasitiki einjiniya, maitiro ayo emagetsi haana kunaka kwazvo;iyo coefficient yekuwedzera kwemutsara yakakura;iyo molding shrinkage rate yakakura, uye yechipiri kugadzirisa yakaoma;kuoma kwakaderera uye kupfeka-kusagadzikana kwekuita kwakashata;urombo hunokambaira kuramba, nyore kutonhora kuyerera;urombo hwekupisa conductivity uye mitengo yakakwirira.Izvi zvinokanganisa zvinomisa kushandiswa kwayo kwakakura kusvika pamwero wakati.Chinangwa chekugadzirisa ndechekuvandudza mechanical properties;kunatsiridza kupfeka kusagadzikana;kuderedza mutsara wekuwedzera;kuwedzera fluidity, nezvimwewo.

2. Mhando uye mabasa emafiller modifiers

Kuzadza nekugadzirisa PTFE negirazi fiber, graphite, molybdenum disulfide, silicon dioxide, aluminium oxide, bhuronzi poda, carbon fiber, nezvimwewo zvinogona kuvandudza kuoma kwayo kwepamusoro, kupfeka kusagadzikana, kukambaira, simba rekukotama, kuramba Simba rakazara uye kugadzikana kwedimensional.Kuomarara kwePTFE kwakasanganiswa negirazi fiber kazhinji kunogona kuwedzerwa ne10%, uye kuramba kupfeka kunogona kuwedzerwa nekanopfuura ka500.Iyo inokambaira kuramba uye kutonhora kuyerera kuramba inovandudzwa zvakanyanya uye inovandudzwa;kuwedzera kwe molybdenum disulfide kunobatsira Kuoma uye kuoma kwezvigadzirwa zvePTFE zvinovandudzwa, uye kupfeka kwekutanga kunoderedzwa;PTFE yakazadzwa negraphite ine yakanakisa makemikari kuramba, compression inokambaira, uye nani kupisa conductivity;PTFE yakazadzwa nehupfu yemhangura inogona kuvandudza kutsika kwekudzivirira kwezvigadzirwa zvekudzivirira, simba rakazara, kuoma, uye kugadzikana kwedimensional.

1. Sraidhi njanji

Sliding dhairekitori ndiyo hwaro hwekuiswa kwesimbi yekucheka muchina maturusi, zviridzwa zvekurapa, uye mamwe akawanda masisitimu nemidziyo, hwaro hwekurongeka uye hwaro hwekumisikidza, kana chiratidzo chehupenyu hwemichina iyi, uye chikamu chakakosha. yemuchina.Muindasitiri yekugadzira maturusi emuchina, mazhinji maturusi ekushandisa njanji mapeya akakandwa simbi-yakakandwa simbi, simbi yakakandwa-yakadzima simbi yakakandwa, simbi yakakandwa-yakadzima, nezvimwe zvakadaro, nekuda kwehunhu hwayo, iyo coefficient yekupokana pakati pesimbi ndeye. hombe, haina kupfeka, haigoni kushanda pasi pekukwesha kwakaoma, uye inokambaira nekumhanya kwakaderera uye kudiki kudiki.Kukambaira uku kuchakanganisa kurongeka kwechikafu uye nemazvo emidziyo yemuchina, kunyanya maturusi emuchina chaiwo.Kuvimbika.Kana iyo yakazadzwa PTFE gwara ikashandiswa, kudzika-kumhanya kugadzikana kwemuchina chishandiso kunovandudzwa zvakanyanya.Nekuti njanji yepurasitiki inotungamira ine hunhu hwezvinhu zvakavigwa zvekune dzimwe nyika, mafirita esimbi uye jecha zvimedu zvinogona kuiswa mupurasitiki kuti zvidzivise kusakara kwayo uye kubvaruka, kudzivirira kudhirowa uye kukwenya kwesimbi, uye inogona kudzivirira njanji yemubhedha.PTFE ine bronze poda uye mamwe mafirita ane yakanakisa friction zvivakwa.Mushure mokunge firimu yekufambisa yakaumbwa pamusoro pesimbi, iyo friction coefficient inoderedzwa zvikuru, kutakura kukwanisa kwefirimu yekufambisa kunovandudzwa zvikuru, uye hupenyu hunoshanda hunoshanda hunowedzerwawo.Kana yakafananidzwa neyesimbi muchina chishandiso chegwaro, iyo friction coefficient inoramba iripo sezvo kutsvedza kunowedzera.Naizvozvo, rudzi urwu rwakazadzwa PTFE gwara renjanji hariburitse zvinokambaira nekumhanya kwakaderera uye micro feed, uye zvakare ine vibration absorption uye cushioning kuita.Iyo friction coefficient yePTFE gwara renjanji ndeye 0.05 kana pakaoma friction, uye 0.03 kana paine mafuta ekuzora, zvisinei nekuti muchina wegiya redhizaini njanji ine mafuta ekuzora kana kwete, kufamba kwayo kwekushanda kwakatsetseka sezvinobvira.Kana njanji yePTFE ichida kugadziriswa mushure mekupfekwa, basa rekugadzirisa rinochengetedza basa uye rinogona kuchinjana.Zviri nyore kuchengetedza dimensional kurongeka.Kunyanya kana njanji yakakuvadzwa uye inoda kugadziriswa, zviri nani kushandisa plastiki kugadzirisa kwenzvimbo.

2. Zvikamu zvefriction

Kune akawanda PTFE friction parts anowanzo shandiswa mukugadzira mainjiniya, anosanganisira mabheya, mhete dzepiston, uye magiya.PTFE chinhu chakanakira mhete dzepiston uye inoshandiswa zvakanyanya mumhepo compressor uye mvura compressors.Iyo PTFE piston mhete inoita semhete yekumanikidza kuvhara zvinwiwa kana magasi.Inowanzoshandiswa mumamiriro ezvinhu apo mafuta kana mamwe mamiriro ezvinhu akaoma asingagoni kushandiswa, zvakadai sekuora kwakanyanya uye kuchengetedzwa kwepamusoro zvinodiwa, zvinogona kuderedza zvakanyanya kupfeka uye kudzokororwa kubvongodza kwe cylinder yemukati rusvingo Nhamba yemakomba inowedzera hupenyu hwebasa re cylinder.Semuenzaniso, kune desktop steam sando, iyo yakatanga kushandisa mhete yesimbi.Panguva yekugadzirwa kwechipiri chekuchinja, mumamiriro ezvinhu akajairika, rusvingo rwemukati rwe cylinder runopfeka kusvika 7-9ram mushure mehafu yegore, mhete yesimbi inozungunuswa kwemavhiki maviri kusvika matatu, uye dzimwe nguva inogona kuputsika.Mhete yepiston yakajairira madziro emukati mecylinder uye silinda yaifanira kutsiviwa.Paunenge uchishandisa PTFE yakazadzwa kwemwedzi, mukati memadziro evhavha inopfeka 2mm chete, uye mushure memwedzi gumi, kupfeka ndiyo chete 3mm, uye hupenyu hunowedzerwa ne4 kusvika ku5 nguva kana kunyange kureba.Anenge ese mhete dzepiston dzinoita chisimbiso mukudzoreredza kufamba uye kutanga kazhinji, saka iyo static friction coefficient inodiwa kuve diki.Pasi pemitoro midiki, iyo static friction coefficient yePTFE ndeye 25% kusvika 75% yakaderera pane zvindori zvepiston zvezvimwe zvinhu.Iyo yakakura mutoro, zviri nani hukuru hwayo.Izvi zvine hukuru husingaenzaniswi muchiedza chinotanga nekudzoreredza kureruka.Mhedzisiro inodzikiswa kushandiswa kwesimba, kuderedzwa kwekudengenyeka, uye ruzha, izvo zvinogonesa kuchengetedza kwezvakatipoteredza.Panguva imwecheteyo, PTFE inogona kushandiswa semagiya uye mabearings ekufambisa kwekufambisa uye magetsi ekufambisa zvikamu munzvimbo dzakasiyana-siyana dzekushanda uye nzvimbo yakaoma zvikuru yezvigadzirwa zvemwenje, kudhinda uye dhayi, kugadzira mapepa, uye maindasitiri ezvekudya.

3. Zvisimbiso

Kushandiswa kwefirimu yePTFE yakasanganiswa pamusoro peiyo rubber sealing material inogona kuvandudza kupikisa kwekunyunguduka uye kupikisa midhiya kwechisimbiso cherubha, uye mutengo wacho wakaderera.Yakashandiswa mukuisa chisimbiso zvinodiwa zvezviitiko zvakasiyana-siyana zvakaoma.Iyo yakazadzwa yeFE yekuisa chisimbiso ine yakanakisa yakakwirira uye yakaderera-tembiricha kuramba uye parizvino ndiyo inonyanya kutsiva yekutsiva yechinyakare asbestos gasket zvinhu.Carbon fiber-yakasimbiswaPTFE chisimbisozvinhu zvine hunhu hwekusimba kwepamusoro, yakakwirira modulus, kuneta kuramba, creep resistance, high thermal conductivity, low coefficient of thermal expansion, uye friction.Aya akazara zvivakwa haaenzaniswe nechero mhando yezvinhu zvekuisa chisimbiso uye akakodzera epamberi yekuisa chisimbiso zvinhu.

4. Anti-corrosion zvikamu

Yakagadziridzwa PTFE ine yakanaka kugadzikana kwemakemikari kune acid, alkali, munyu corrosion media, uye inogona kutsiva simbi ceramics for anti-corrosion engineering, kunyanya yakakodzera kupisa kwakanyanya uye nguva dzakasimba dzekuora, senge anti-corrosion midziyo, pombi, uye fittings mumakemikari zvirimwa. .Corrosive friction materials, mavharuvhu, pombi, zvekutsinhanisa kupisa, mahwendefa ane porous, uye mafirita emidziyo inoparadza midhiya, lining, uye kupfekedzwa kwemakemikari emidziyo.

5. Kuvharirwa kwemagetsi

Yakagadziridzwa PTFE inoshandiswa zvakanyanya sechidziviriro chinodzivirira chetambo dzewaya, machubhu, uye matepi.Inoshandiswawo sechidziviriro chezvigadziko zvakasiyana, zvitsigiro, yakakwirira-frequency microwave zvishandiso, uye maelectrode eiyo electrochemical indasitiri.

6. Zvinhu zvekuvaka

Jira regirazi rakamisikidzwa nePTFE dispersion yakanakisa membrane chimiro chekuvaka zvinhu.Iyo ine yakanakisa kutapurirana kwemwenje, iyo inogona kuderedza mutengo wekuvhenekesa uye mhepo yekufemesa.Durability inopfuura makore makumi maviri.Inogona kuderedza mari yekupenda nekuchenesa.Nguva yekuvaka yemapuranga makuru emapuranga inogona kupfupiswa.50%, inogona kuderedza mutengo wemidziyo yedenga ne50% uye mutengo wekuvaka wese ne20%.Naizvozvo, inokodzera zvekufurira zvinhu zvematare ekunze, nhandare, nhandare, skating rinks, madziva ekushambira, makuru-maratidziro, mazoo uye botanical magadheni, zviteshi zvekufambisa, nezvimwe.

7. Lubricant additives

Pasi pemuganho wemafuta ekuzora, iyo inonyanya kushanda nzira yekudzikisa iyo coefficient yekupokana ndeyekusarudza yakakodzera lubricant additives, uyePTFE poda muchinachinhu chinowanzoshandiswa solid additive.Maedzo anoratidza kuti kuwedzera imwe huwandu hwekuwedzera kwakasimba kuoiri yeinjini kunogona kuchengetedza zvakanyanya 5% yemafuta einjini.

8. Agricultural machinery materials

Uchishandisa iyo yekuzvizora, yakaoma-inonamira uye inomira-inodzivirira zvimiro zvePTFE yakazadzwa, inogona kugadzirwa zvakanyanya kuita bulldozer plate lining, excavator bucket, uye yemukati liner ye dump rori compartment, nezvimwewo, kuitira kuvandudza kushanda uye kugadzikana. yekutakura zvinhu.

9. Zvinhu zvezuva nezuva

Iyo PTFE-yakavharidzirwa ironworking pamusoro inopfeka-inodzivirira uye ine yakaderera friction resistance;iyo PTFE-yakavharwa wok uye mupunga cooker ine hunhu hwechikafu chisina-tsvimbo;blade inosungirirwa kana kuti inonamirwa nePTFE firimu, uye blade yakasimba Kana matama achifamba, kushorwa zvose zviduku paganda uye zvinyoro.

10. Kuvandudzwa kwemichina mitsva yekushandisa

Pamusoro pekushandisa uye tsvakiridzo mhedzisiro yePTFE michinaindasitiri, tichifunga nezvekuita kwezvinhu uye chimiro, PTFE ine tarisiro yakakura muindasitiri yemichina yeindasitiri yemotokari, zvombo zvakajairika, ngarava, aerospace, uye simba reatomu, mushonga, kuchengetedza kwezvakatipoteredza, nezvimwe.