Kushanduka kwePolytetrafluoroethylene (PTFE) - kubva pakugadzirwa kwechinhu chinoshandiswa chete muzvinhu zvinokosha kusvika pakushandiswa kwakajairika kwave kuri zvishoma nezvishoma.
Zvisinei, mumakore makumi maviri apfuura kushandiswa kwePTFE kwakaita sekunge kwave kwakakosha, zvichiita kuti ikwanise kushandiswa mumabhizimisi mumabasa anopfuura 200 emaindasitiri, evatengi uye ekurapa. Uye nepo machira, tsvimbo, machira uye zvikamu zviri kukonzera musika wezvigadzirwa zvePTFE, chubhu yePTFE nehosipaipi yePTFE zviri kubuda senzvimbo huru yekukura.
Zvishandiso zvePTFE tube
Kushandiswa kweChubhu yePTFEYakapararira mumabasa akasiyana-siyana anosanganisira mota, makemikari, magetsi uye ekurapa. Tafura 1 inoratidza hunhu hukuru hunoratidza kushanduka-shanduka kwechubhu yePTFE, ukuwo Mufananidzo 1 uchiratidza mashandisirwo ayo muminda yakasiyana-siyana.
Mukushandiswa kwemotokari, kugona kwePTFE kutsungirira tembiricha inodarika 250°C kunoita kuti ive yakakodzera kutapurirana kwemvura inodziya pakupisa kwakanyanya.
Mukushandiswa kwekurapa,Chubhu yePTFEIri kudiwa zvikuru nekuda kwekunyorova kwayo uye kusashanda kwayo nemakemikari. Makemikari anoshandisa chubhu yePTFE anogona kuiswa mumuviri wemunhu pasina kutya kukanganiswa kana kukanganiswa nenhengo dzemuviri.
Mukushandiswa kwemakemikari - kusanganisira marabhoritari - PTFE ndiyo nzira yakanaka yekutsiva girazi nekuda kwekusapinda kwayo uye kugara kwenguva refu.
Mukushandiswa kwemagetsi, hunhu hwakanaka hwe dielectric hwe virgin PTFE hunoita kuti ikwanise kudzivirira tambo dzemagetsi ane simba rakawanda.
Mhando dzePTFE chubhu
Zvichienderana nekushandiswa, chubhu yePTFE yakakamurwa kuita zvikamu zvitatu zvakakura - chimwe nechimwe chinotsanangurwa nedhayamita yechubhu uye ukobvu hwemadziro (ona Tafura 2).
Kunyangwe mukati mezvikamu, chubhu yePTFE inokweretesa kune akasiyana mashandisirwo, imwe neimwe ichibvumira kushandiswa kwakasiyana (ona Tafura 3):
Chubhu yePTFE iri mumusika wemidziyo yekurapa
Kazhinji, chubhu yespaghetti ine dhayamita diki inoshandiswa mukurapa. Kushandiswa kwePTFE munzvimbo iyi kunoenderana nezvinhu zviviri zvakakosha: lubricity uye biocompatibility. Fluoropolymers inoratidza lubricity yakanaka kwazvo kana ichienzaniswa nedzimwe mapurasitiki. PTFE ndiyo polymer inonyanya kunyorovesa iripo, ine coefficient of friction ye0.1, ichiteverwa nefluorinated ethylene propylene (FEP), ine 0.2. Aya mapolymer maviri anomiririra huwandu hwakawanda hwechubhu yefluoropolymer inoshandiswa muzvishandiso zvekurapa.
Kuenderana kwepolymer chero ipi zvayo inoshandiswa mumudziyo wekurapa inyaya iri pachena. PTFE inobudirira munzvimbo iyi uye ine nhoroondo refu yekushandiswa mumuviri. Mafluoropolymer emhando yekurapa anofanira kusangana nezvinodiwa zvekuyedzwa zveUSP Class VI neISO 10993. Ehe, kuchena kwekugadzirisa chinhu chakakoshawo.
Mumakore gumi nemasere apfuura, Besteflon yakaramba ichinyanya kutarisa pakugadzira maPTFE Tubes nema PTFE hose. Sevanhu vanotungamira mukugadzira ma fluoroplastics, tinotevera mhando yepamusoro uye sevhisi yekutengeswa mushure mekutengesa. Kana muchida kutanga kugadzirisa maPTFE tube kuti ienderane nezvinodiwa nemi, ndapota inzwa wakasununguka kutibata nesu!
Nguva yekutumira: Chikumi-12-2023