Njira Yopangira PTFE

1.Kupanga TFE

2.Kuyimitsidwa Polymerization

3.Dispersion polymerization

Kupanga TFE

1 Opanga PTFE amayamba ndi kupanga TFE.Zosakaniza zitatu za TFE, fluorspar, hydrofluoric acid, ndi chloroform zimaphatikizidwa muchipinda chamankhwala chotenthetsera pakati pa 1094-1652 ° F (590-900 ° C).The zotsatira gasi ndiye utakhazikika, ndi distilled kuchotsa zosafunika.

Kuyimitsidwa Polymerization

2 Chipinda chochitiramo chimadzazidwa ndi madzi oyeretsedwa komanso chothandizira kapena choyambitsa, mankhwala omwe amachotsa mapangidwe a polima.TFE yamadzimadzi imaponyedwa muchipinda chochitira.Pamene TFE ikumana ndi woyambitsa, imayamba kupanga polymerize.Zotsatira za PTFE zimapanga njere zolimba zomwe zimayandama pamwamba pa madzi.Izi zikachitika, chipindacho chimagwedezeka mwamakina.Kachitidwe ka mankhwala mkati mwa chipindacho kumatulutsa kutentha, kotero kuti chipindacho chimazizira ndi madzi ozizira kapena ozizira mu jekete kuzungulira kunja kwake.Kuwongolera kumangotseka kuperekedwa kwa TFE pambuyo polemera kwina mkati mwa chipindacho.Madzi amatsanulidwa m'chipindamo, ndikusiya chipwirikiti cha PTFE chomwe chimawoneka ngati kokonati wa grated.

3 Kenako, PTFE imawumitsidwa ndikudyetsedwa mumphero.Mpheroyo imapuntha PTFE ndi masamba ozungulira, kupanga zinthu zogwirizana ndi ufa wa tirigu.Ufa wabwino umenewu ndi wovuta kuuumba.Zili ndi "kuyenda kosakwanira," kutanthauza kuti sizingasinthidwe mosavuta pazida zokha.Mofanana ndi ufa wa tirigu wosasefa, ukhoza kukhala ndi zotupa ndi matumba a mpweya.Chifukwa chake opanga amasintha ufa wabwinowu kukhala ma granules akulu ndi njira yotchedwa agglomeration.Izi zikhoza kuchitika m'njira zingapo.Njira imodzi ndiyo kusakaniza ufa wa PTFE ndi zosungunulira monga acetone ndikuzigwedeza mu ng'oma yozungulira.Njere za PTFE zimamatira pamodzi, kupanga timafupa tating'ono.Kenako ma pellets amawumitsidwa mu uvuni.

4 The PTFE pellets akhoza kuumbidwa mu magawo ntchito zosiyanasiyana njira.Komabe, PTFE akhoza kugulitsidwa zambiri kale chisanadze kuumbidwa mu otchedwa billets, amene ndi masilinda olimba a PTFE.Mabitolo amatha kukhala 5 ft (1.5 m) wamtali.Izi zitha kudulidwa kukhala mapepala kapena timitengo ting'onoting'ono, kuti tiwumbenso.Kuti apange billet, PTFE pellets amatsanuliridwa mu cylindrical zosapanga dzimbiri nkhungu.Chikombolecho chimayikidwa pa makina osindikizira a hydraulic, omwe ali ngati kabati yaikulu yokhala ndi nkhosa yolemera.Nkhosa yamphongo imagwera pansi mu nkhungu ndipo imagwiritsa ntchito mphamvu pa PTFE.Pambuyo pa nthawi inayake, nkhunguyo imachotsedwa ku makina osindikizira ndipo PTFE imakhala yosasunthika.Amaloledwa kuti apume, kenaka amaikidwa mu uvuni kwa sitepe yomaliza yotchedwa sintering.

5 The kuumbidwa PTFE ndi kutenthedwa mu sintering uvuni kwa maola angapo, mpaka pang'onopang'ono kufika kutentha mozungulira 680 ° F (360 ° C).Izi zili pamwamba pa malo osungunuka a PTFE.Tinthu tating'onoting'ono ta PTFE timalumikizana ndipo zinthuzo zimakhala ngati gel.Ndiye PTFE pang'onopang'ono utakhazikika.Billet yomalizidwa ikhoza kutumizidwa kwa makasitomala, omwe adzadula kapena kumeta m'zidutswa zing'onozing'ono, kuti apitirize kukonza.

Kubalalika polymerization

6 Polymerization wa PTFE ndi kubalalitsidwa njira kumabweretsa mwina ufa wabwino kapena phala ngati mankhwala, amene ndi zothandiza kwambiri zokutira ndi akamaliza.TFE imalowetsedwa mu makina odzaza madzi pamodzi ndi mankhwala oyambitsa.M'malo mogwedezeka mwamphamvu, monga momwe kuyimitsira, chipinda chochitiramo chimangogwedezeka pang'onopang'ono.PTFE imapanga mikanda yaying'ono.Ena mwa madzi amachotsedwa, posefa kapena powonjezera mankhwala omwe amachititsa kuti mikanda ya PTFE ikhazikike.Zotsatira zake ndi mankhwala amkaka otchedwa PTFE dispersion.Itha kugwiritsidwa ntchito ngati madzi, makamaka pakugwiritsa ntchito ngati kumaliza kwa nsalu.Kapena angaumitsidwe kukhala ufa wosalala umene umagwiritsidwa ntchito kutikita chitsulo