PTFE yog dab tsi?
PTFE feem ntau hu ua "yas vaj ntxwv", yog ib qho polymer polymer ua los ntawm tetrafluoroethylene ua ib qho monomer. Nws tau tshawb pom los ntawm Dr. Roy Plunkett hauv xyoo 1938. Tej zaum koj tseem xav tias txawv txawv rau cov tshuaj no, tab sis koj puas nco qab lub lauj kaub tsis lo uas peb siv? Lub lauj kaub tsis lo yog coated ib txheej PTFE rau ntawm qhov chaw ntawm lub lauj kaub, yog li cov zaub mov tsis lo rau hauv qab ntawm lub lauj kaub, uas qhia txog PTFE qhov kub siab tiv taus thiab cov yam ntxwv lubrication siab. Niaj hnub no, PTFE hmoov raw khoom yog ua rau cov khoom ntawm ntau yam duab, xws li PTFE raj, PTFE zaj duab xis nyias, PTFE tuav, thiab PTFE phaj, uas txhua tus siv rau hauv ntau qhov chaw sib txawv. Tom ntej no, peb tham txog kev siv PTFE raj hauv 3D tshuab luam ntawv.
PTFE puas yog tshuaj lom?
Cov ncauj lus txog seb PTFE puas muaj tshuaj lom yog qhov tsis sib haum xeeb thiab PTFE yeej tsis muaj tshuaj lom.
Tab sis thaum PFOA (Perfluorooctanoic Acid) tau ntxiv rau hauv cov khoom xyaw PTFE ua ntej, cov tshuaj lom tau tso tawm thaum siv thaum kub siab. PFOA nyuaj rau lwj los ntawm ib puag ncig, thiab tuaj yeem nkag mus rau tib neeg thiab lwm yam kab mob los ntawm cov khoom siv lub cev, huab cua thiab dej, thiab dhau sijhawm tuaj yeem ua rau cov nqi yug me nyuam qis dua thiab lwm yam kab mob ntawm lub cev tiv thaiv kab mob. Tab sis tam sim no PFOA tau raug txwv los ntawm cov tub ceev xwm kom ntxiv rau hauv cov khoom xyaw PTFE. Tag nrho peb cov ntawv qhia txog kev xeem raw khoom kuj qhia tias tsis muaj PFOA Cheebtsam.
Vim li cas cov tshuab luam ntawv 3D siv cov raj PTFE?
Nrog rau kev loj hlob sai ntawm The Times, 3D tshuab luam ntawv yog ib qho thev naus laus zis tsim sai, tseem hu ua kev tsim khoom ntxiv. Nws yog ib qho txheej txheem ntawm kev sib txuas lossis kho cov ntaub ntawv hauv qab kev tswj hwm computer los tsim cov khoom peb-seem, feem ntau siv cov kua molecules lossis cov hmoov me me los sib xyaw ua ke thiab thaum kawg tsim cov khoom txheej los ntawm txheej. Tam sim no, 3D luam ntawv molding thev naus laus zis feem ntau suav nrog: txoj kev yaj deposition, xws li kev siv thermoplastic, cov khoom siv hlau siv lead ua ke, nws qhov ceev molding qeeb, thiab cov khoom yaj fluidity zoo dua;
Txawm li cas los xij, cov tshuab luam ntawv 3D muaj keeb kwm ntawm kev mob taub hau, yooj yim rau ntsaws! Txawm hais tias tus nqi ua tsis tiav ntawm 3D tshuab luam ntawv qis, thaum nws tshwm sim, nws yuav tsis tsuas yog cuam tshuam rau qhov zoo ntawm kev luam ntawv, tab sis kuj pov tseg lub sijhawm thiab cov ntaub ntawv luam ntawv, thiab txawm tias ua rau lub tshuab puas tsuaj. Ntau tus neeg xav tias lub raj caj pas kub dhau vim nws tau ua los ntawm cov khoom siv ntxiv. Vim tias cov ntaub ntawv qib engineering xav tau qhov kub siab tas mus li, qhov yuav tsum tau ua rau cov khoom siv yog siab heev. Yog li ntawd, lub tshuab luam ntawv 3D siv PTFE raj ua lub raj pub mis. Ntau cov khoom siv raw yuav tsum tau thauj mus rau lub taub hau tshuab luam ntawv thaum lub xeev yaj, thiab lub raj thauj khoom yuav tsum ua tau raws li qhov chaw xav tau ntawm lub tshuab luam ntawv, yog li tam sim no ntau tus neeg tsim khoom hloov mus rau lub raj hlau fluorine zaj ua hauv, hlau fluorine zaj thiab stainless hlau thermal conductivity qis, tuaj yeem txo qhov kub ntawm lub raj caj pas, nrog hlau fluorine zaj raj, qhov nqi ua tsis tiav ntawm kev ntsaws raug txo qis ntau heev. Yog li qhov no yog qhov kev xaiv zoo tshaj plaws rau cov tshuab luam ntawv 3D.
Yog tias koj nyob hauv kev lag luam luam ntawv 3D, Tej zaum koj yuav nyiam
Cov hauv qab no yog kev qhia dav dav txog cov yam ntxwv tseem ceeb ntawm PTFE raj:
1. Tsis nplaum: Nws tsis muaj zog, thiab yuav luag txhua yam khoom tsis sib txuas nrog nws.
2. Kev tiv taus cua sov: ferroflurone muaj kev tiv taus cua sov zoo heev. Kev ua haujlwm dav dav tuaj yeem siv tas li ntawm 240 ℃ thiab 260 ℃. Lub sijhawm luv luv kub tiv taus rau 300 ℃ nrog lub ntsiab lus yaj ntawm 327 ℃.
3. Kev Siv Lubrication: PTFE muaj qhov sib txhuam coefficient qis. Qhov sib txhuam coefficient hloov pauv thaum lub thauj khoom swb, tab sis tus nqi tsuas yog nyob nruab nrab ntawm 0.04 thiab 0.15.
4. Kev tiv thaiv huab cua: tsis muaj kev laus, thiab lub neej zoo dua tsis laus hauv yas.
5. Tsis muaj tshuaj lom: nyob rau hauv ib puag ncig ib txwm muaj hauv 300 ℃, nws muaj kev inertia physiological thiab tuaj yeem siv rau cov khoom siv kho mob thiab khoom noj.
Kev yuav cov PTFE tubing zoo tsis yog tsuas yog hais txog kev xaiv cov lus qhia sib txawv rau cov ntawv thov sib txawv. Ntau ntxiv rau xaiv lub chaw tsim khoom txhim khu kev qha. Besteflon Fluorine yas Industry Co., Ltd. tshwj xeeb hauv kev tsim cov PTFE hoses thiab cov raj zoo rau 15 xyoo. Yog tias muaj lus nug thiab xav tau, thov koj xav sab laj nrog peb kom tau txais cov lus qhia ntxiv.
Cov Lus Qhia Txog
Lub sijhawm tshaj tawm: Lub Yim Hli-27-2022