Chii chinonzi PTFE?
PTFE inozivikanwa zvikuru se "plastic king", ipolymer polymer yakagadzirwa ne tetrafluoroethylene se monomer. Yakawanikwa naDr. Roy Plunkett muna 1938. Pamwe uchiri kunzwa zvisina kujairika nezvechinhu ichi, asi unoyeuka here pani isinganamire yatakashandisa? Pani isinganamire yakaputirwa nePTFE coating pamusoro pepani, kuitira kuti chikafu chisanamatire pasi pepani, izvo zvinoratidza kuramba kupisa kwakanyanya kwePTFE uye hunhu hwekuzora zvakanyanya. Mazuva ano, zvinhu zvePTFE powder zvinogadzirwa kuita zvigadzirwa zvemhando dzakasiyana-siyana, zvakaita sePTFE tubes, PTFE thin film, PTFE bars, uye PTFE plates, zvese zvinoshandiswa munzvimbo dzakasiyana. Tevere, tinokurukura nezvekushandiswa kwema PTFE tubes mumidziyo ye3D printer.
PTFE ine chepfu here?
Nyaya yekuti PTFE ine chepfu here inyaya inokakavadzana uye PTFE haina chepfu zvechokwadi.
Asi PFOA (Perfluorooctanoic Acid) payakambowedzerwa muPTFE, chepfu iyi yaiburitswa kana ikashandiswa pakupisa kwakanyanya. PFOA yakaoma kuibvisa kubva munzvimbo, uye inogona kupinda muvanhu nezvimwe zvipenyu kuburikidza nezvinhu zvepanyama, mhepo nemvura, uye nekufamba kwenguva inogona kukonzera kudzikira kwehuwandu hwekubereka uye zvimwe zvirwere zvekudzivirira muviri. Asi ikozvino PFOA yakarambidzwa nevakuru kuti iiwedzere muPTFE. Mishumo yedu yese yekuyedza zvinhu zvisina kubikwa inoratidzawo kuti hapana PFOA.
Sei maprinta e3D achishandisa machubhu ePTFE?
Nekukura nekukurumidza kweThe Times, 3D printer inyanzvi yekugadzira zvinhu nekukurumidza, inozivikanwawo sekugadzira zvinhu zvinowedzera. Inzira yekubatanidza kana kupodza zvinhu pasi pekombuta kugadzira zvinhu zvine mativi matatu, kazhinji uchishandisa mamorekuru emvura kana zvidimbu zveupfu kuti zvibatanidzwe pamwe chete uye pakupedzisira kugadzira zvinhu zvakatevedzana nezvikamu. Parizvino, tekinoroji yekuumba zvinhu ye3D printing inowanzo sanganisirwa: nzira yekunyungudutsa, senge kushandisa thermoplastic, common crystal system metal materials, kumhanya kwayo kwekuumba kunononoka, uye kunyungudutsa kwezvinhu kuri nani;
Zvisinei, maprinta e3D ane nhoroondo yekare yemusoro, zviri nyore kubatanidza! Kunyangwe mwero wekukundikana kweprinta ye3D wakaderera, kana wangoitika, hauzongokanganisi kunaka kwekudhinda chete, asiwo kutambisa nguva nezvinhu zvekudhinda, uye kutokuvadza muchina. Vanhu vazhinji vanofungidzira kuti chubhu yehuro yaipisa zvakanyanya nekuti yakagadzirwa nechinowedzera. Nekuti zvinhu zveinjiniya zvinoda tembiricha yakakwira, zvinodiwa zvezvikamu zvakakwirira kwazvo. Naizvozvo, printer ye3D inoshandisa chubhu yePTFE sechubhu yekudyisa. Zvinhu zvakawanda zvinogadzirwa zvinofanira kutakurwa kuenda kumusoro weprinta kana zvanyunguduka, uye chubhu yekufambisa inofanira kusangana nezvinodiwa zvenzvimbo yeprinta, saka ikozvino vagadziri vazhinji vanoshandura kune yakavakwa mukati mechubhu yedhiragoni yesimbi fluorine, dhiragoni yesimbi fluorine uye thermal conductivity yesimbi isina tsvina yakaderera, inogona kuderedza kupisa kwechubhu yehuro, nechubhu yedhiragoni yesimbi fluorine, mwero wekukundikana kwekubatanidza wakaderera zvakanyanya. Saka iyi ndiyo sarudzo yakanakisa yemaprinta e3D.
Kana uri mubhizinesi rekudhinda re3D, ungade
Zvinotevera ndizvo zvinotsanangurwa zvakanyanya nezvehunhu hukuru hwemachubhu ePTFE:
1. Hainamati: Haina simba, uye zvinhu zvinenge zvese hazvina kubatana nayo.
2. Kudzivirira kupisa: Ferroflurone ine kushivirira kupisa kwakanyanya. Basa rose rinogona kushandiswa nguva dzose pakati pe240℃ ne260℃. Kudzivirira kupisa kwenguva pfupi kusvika 300℃ nepo kunyunguduka kwe327℃.
3. Kuzora: PTFE ine chiyero chekukweshana chakaderera. Chikamu chekukweshana chinoshanduka kana mutoro uchitsvedza, asi kukosha kwacho kuri pakati pe0.04 ne0.15 chete.
4. Kudzivirira mamiriro ekunze: hapana kukwegura, uye hupenyu huri nani hwekusakwegura mupurasitiki.
5. Haina chepfu: munzvimbo yakajairika iri mukati me300℃, ine inertia yemuviri uye inogona kushandiswa pakushandisa michina yekurapa neyekudya.
Kutenga machubhu ePTFE akakodzera hakusi kungosarudza magadzirirwo akasiyana ekushandisa kwakasiyana chete. Zvimwe zvekusarudza mugadziri akavimbika. Besteflon Fluorine plastic Industry Co., Ltd. yave iine hunyanzvi mukugadzira machubhu ePTFE emhando yepamusoro kwemakore gumi nemashanu. Kana paine mibvunzo nezvaunoda, ndapota inzwa wakasununguka kutibvunza kuti uwane mamwe mazano ehunyanzvi.
Nyaya Dzakabatana
Nguva yekutumira: Nyamavhuvhu-27-2022