PTFE ndi chiyani?
PTFE yomwe imadziwika kuti "pulasitiki mfumu", ndi polima polima wopangidwa ndi tetrafluoroethylene ngati monomer.Zinapezeka ndi Dr. Roy Plunkett mu 1938. Mwinamwake mukumvabe zachilendo ndi mankhwalawa, koma kodi mukukumbukira poto yopanda ndodo yomwe tinagwiritsa ntchito?The sanali ndodo poto TACHIMATA ndi PTFE ❖ kuyanika pamwamba pa poto, kuti chakudya si n'kudziphatika pansi poto, zomwe zimasonyeza PTFE ndi kutentha kukana ndi mkulu kondomu makhalidwe.Masiku ano, PTFE ufa zopangira amapangidwa mankhwala akalumikidzidwa zosiyanasiyana, monga PTFE machubu, PTFE woonda filimu, PTFE mipiringidzo, ndi PTFE mbale, amene onse ntchito m'madera osiyanasiyana.Kenako, tikambirana za kugwiritsa ntchito machubu a PTFE pazida zosindikizira za 3D.
Kodi PTFE Ndi Yowopsa?
Mutu wakuti PTFE ndi poizoni ndi zotsutsana ndipo PTFE kwenikweni si poizoni.
Koma pamene PFOA (Perfluorooctanoic Acid) idawonjezeredwa kale ku zosakaniza za PTFE, poizoniyo inatulutsidwa ikagwiritsidwa ntchito pa kutentha kwakukulu.PFOA ndiyovuta kuwononga chilengedwe, ndipo imatha kulowa mwa anthu ndi zamoyo zina kudzera m'zinthu zakuthupi, mpweya ndi madzi, ndipo pakapita nthawi zimatha kubweretsa kutsika kwa chonde komanso matenda ena a chitetezo chamthupi.Koma tsopano PFOA yaletsedwa ndi aboma kuti iwonjezere pazosakaniza za PTFE.Malipoti athu onse oyeserera akuwonetsanso kuti palibe gawo la PFOA.
Chifukwa chiyani osindikiza a 3D amagwiritsa ntchito machubu a PTFE?
Ndi chitukuko chofulumira cha The Times, chosindikizira cha 3D ndiukadaulo wopanga mwachangu, womwe umadziwikanso kuti kupanga zowonjezera.Ndi njira yolumikizira kapena kuchiritsa zida zomwe zili pansi pa makompyuta kuti zipange zinthu zamitundu itatu, nthawi zambiri pogwiritsa ntchito mamolekyu amadzimadzi kapena tinthu tating'onoting'ono tophatikizana ndikumanga zinthu zosanjikiza.Pakali pano, 3D makina osindikizira akamaumba luso zambiri m'gulu: kusungunuka mafunsidwe njira, monga ntchito thermoplastic, wamba galasi dongosolo zitsulo zipangizo, akamaumba liwiro ndi wosakwiya, ndi zinthu kusungunuka fluidity ndi bwino;
Komabe, osindikiza a 3D ali ndi mbiri yakale yamutu, yosavuta kuyiyika!Ngakhale kulephera kwa chosindikizira cha 3D kumakhala kochepa, zikachitika, sizidzangokhudza khalidwe losindikiza, komanso kuwononga nthawi ndi zipangizo zosindikizira, komanso kuwononga makinawo.Anthu ambiri amakayikira kuti chubu chapakhosi chinali chotentha kwambiri chifukwa chopangidwa ndi chowonjezera.Chifukwa zida zamakalasi a uinjiniya zimafunikira kutentha kosalekeza, zofunikira zamagulu ndizokwera kwambiri.Chifukwa chake, chosindikizira cha 3D chimagwiritsa ntchito chubu cha PTFE ngati chubu chodyera.Zida zambiri zopangira ziyenera kunyamulidwa kumutu wosindikizira m'malo osungunuka, ndipo chubu choyendera chiyenera kukwaniritsa zofunikira za chosindikizira, kotero tsopano opanga ambiri amasinthira ku chubu chachitsulo cha fluorine chinjoka, chinjoka chachitsulo cha fluorine ndi chitsulo chosapanga dzimbiri. matenthedwe madutsidwe ndi otsika, akhoza bwino kuchepetsa kutentha kwa pakhosi chubu, ndi chitsulo fluorine chinjoka chubu, plugging kulephera mlingo kwambiri yafupika kwambiri.Chifukwa chake ichi ndiye chisankho chabwino kwambiri kwa osindikiza a 3D.
Ngati muli mu bizinesi yosindikiza ya 3D, Mutha Kukonda
Zotsatirazi ndikuwonetsetsa kwakukulu kwazinthu zazikulu zamachubu a PTFE:
1. Yosamatira: Ndi inert, ndipo pafupifupi zinthu zonse sizimalumikizana nayo.
2. Kukana kutentha: ferroflurone imakhala ndi kutentha kwambiri.Ntchito zambiri zitha kugwiritsidwa ntchito mosalekeza pakati pa 240 ℃ ndi 260 ℃.Kukana kutentha kwakanthawi kochepa mpaka 300 ℃ ndi malo osungunuka a 327 ℃.
3. Mafuta: PTFE ili ndi coefficient yotsika kwambiri.Mkangano wa coefficient umasintha pamene katundu akutsetsereka, koma mtengo wake umangokhala pakati pa 0.04 ndi 0.15.
4. Kukana kwanyengo: palibe ukalamba, komanso moyo wabwino wosakalamba mu pulasitiki.
5. Yopanda poizoni: m'malo abwinobwino mkati mwa 300 ℃, imakhala ndi inertia yakuthupi ndipo imatha kugwiritsidwa ntchito ngati zida zamankhwala ndi chakudya.
Kugula machubu oyenera a PTFE sikuti amangosankha mitundu yosiyanasiyana yamapulogalamu osiyanasiyana.Zambiri kusankha wopanga wodalirika.Besteflon Fluorine plastic Industry Co., Ltd. imakhazikika pakupanga mapaipi apamwamba a PTFE ndi machubu kwa zaka 15.Ngati muli ndi mafunso ndi zosowa, chonde omasuka kutifunsani kuti mudziwe zambiri zamaluso.
Nkhani Zogwirizana nazo
Nthawi yotumiza: Aug-27-2022