The wathunthu extrusion ndondomeko PTFE

The wathunthu extrusion ndondomeko PTFE:Gawo lodyetserako lolimba, gawo losungunuka, gawo la Diversion, gawo lotumizira la Sungunulani ndi gawo Loziziritsa.

1. Gawo la chakudya cholimba

M'chigawo chino, kusankha zipangizo ndizofunikira kwambiri.Pofuna kutsimikizira khalidwe la extrusion, zipangizo zomwe zimagwiritsidwa ntchito ziyenera kukwaniritsa zotsatirazi: kuchulukitsidwa kwakukulu, kutuluka kwaufulu kwaufulu, tinthu tating'onoting'ono tizikhala ndi kukhazikika kokwanira ndi kuuma, ndi zopangira Ukhondo, ndi zina zotero. njira ziwiri, kuphatikizika kwa ufa ndi kutuluka kolimba kwa pulagi, njira yopangira gawoli iyeneranso kufotokozedwa kuchokera kuzinthu ziwirizi.

①Kuphatikizika kwa ufa.Mu gawo ili, pamene plunger imabwerera, zinthu zotayirira zidzagwera m'chipinda chokhomerera chokha pansi pa mphamvu yokoka, ndipo pamene plunger ikupita patsogolo pang'onopang'ono ndikuyamba kufinya zinthuzo, tinthu tating'onoting'ono timakhala tating'onoting'ono. pulagi yolimba.Njirayi ndiyo njira yopangira mphamvu ya extrusion ya makina a plunger.

②Kuthamanga kwa pulagi yolimba.Zinthu zikapitilira kupitilira ndi plunger, pulagi yolimba imakankhira zinthuzo mumbiya yonse kutsogolo pansi pa nkhonya.Ndipo pochita izi, pulagi yolimba idzalandira mphamvu yokankhira kuchokera kumapeto kumbuyo ndi kutsogolo ndi kukana, potero kusunga mphamvu zambiri.Plunger ikafika patali kwambiri, imayamba kubwereranso mwachangu.Panthawiyi, zinthuzo zidzatulutsa mphamvu zomwe zasungidwa kale, kuti zinthuzo zipitirizebe kupita patsogolo.Chifukwa PTFE palokha ali lalikulu zokwawa katundu, pamene plunger akanikizire izo pansi, kuchuluka kwa mphamvu adzakhala kusungidwa chifukwa mapindikidwe.Gawo ili la mphamvu lidzatulutsidwa pang'onopang'ono pamene plunger ikubwerera, ndipo izi zidzazungulira Kubwerera ndi mtsogolo.

2. Gawo losungunuka

Pulagi yolimba ikafika, ipanga mikangano ndi khoma la mbiya ndikupangitsa kutentha.Kuphatikizidwa ndi chotenthetsera kunja kwa mbiya, kutentha kwa pulagi yolimba kumapitilira kukwera, kotero kuti zinthuzo zimayamba kusungunuka ndikutulutsa kusungunuka.membrane.Kusungunuka kwa zinthuzo kumayambira pagawo lomwe lili pafupi ndi khoma la silinda, ndipo pang'onopang'ono limasungunuka kuchokera kunja kupita mkati.Pamene zinthu zikupitirira patsogolo, makulidwe a nkhungu ndalama adzapitiriza kuwonjezeka, ndi utali wozungulira wa pulagi olimba adzakhala Pitirizani kukhala ang'onoang'ono ndi ang'onoang'ono mpaka kusungunula amadzaza lonse mbiya gawo.

3. Diversion gawo

Kawirikawiri gawo loyambira la nkhungu ya chitoliro lidzakhala ndi shunt cone, ntchito yake ndikupangitsa kusungunuka kumayenda kudzera mu gawo ili kukhala mphete yopyapyala, yomwe imathandiza kutentha ndi pulasitiki ndikupanga chitoliro chokonzedweratu.Pamene zakuthupi umayenda mu gawo ili, mavuto adzakhala anamanga mu Sungunulani pansi kukaniza frictional wa ziboda chulucho ndi zipangizo zina, amene n'kopindulitsa mapangidwe wandiweyani mankhwala, komanso zinthu adzakhala pansi kukameta ubweya wamphamvu mu gawo ili.Pamlingo wina, kusungunuka kwa zida zotsalira zotsalira kumafulumizitsa, ndipo zidazo zimatha kusungunuka kwathunthu zikalowa gawo lotsatira.

4. Sungunulani kufalitsa gawo

Zinthu zikalowa m'gawoli, zakhala zosungunuka kwathunthu, koma kupanikizika kumakhala ndi kusinthasintha kwina, ndipo kusungunuka kwa PTFE kumakhalabe ndi kusungunuka.Izi ndichifukwa chakuti zinthuzo nthawi zonse zimakhala mkati mwa kusungirako mphamvu kuti zithetse mphamvu panthawi yopita patsogolo.Pofuna kuonetsetsa kuti kayendetsedwe kake kapitirize;ndi kupita patsogolo kosalekeza kwa zinthuzo, kusinthasintha kwa kuthamanga kudzakhala kochepa komanso kakang'ono, ndipo kayendetsedwe kake kadzakhala kokhazikika.Popeza plunger kukhomerera extruder utenga yaitali kufa kamangidwe, izo bwino amatalikitsa nthawi zinthu kukhala mu kufa, potero kupititsa patsogolo yunifolomu ndi compactness wa mankhwala.Chifukwa cha mkulu kusungunuka mfundo PTFE palokha, m`pofunika kutentha kufa pa extrusion, ndi kutalika kwa Kutentha gawo zidzakhudza extrusion kuthamanga ndi liwiro kumlingo wakutiwakuti, potero zimakhudza processing dzuwa la extruder.Malinga ndi zotsatira zoyenera zoyezetsa, gawo lotenthetsera lalitali, limapangitsa kuti mphamvu ya extrusion ichuluke komanso kuti zinthu zizikhala bwino.Komabe, ngati gawo lotenthetsera ndi lalitali kwambiri, likhoza kuyambitsa ming'alu muzinthuzo.Kuti athetse vutoli, gawo lotentha la mbiya likhoza kugawidwa m'magawo atatu, chigawo chilichonse chingathe kulamulira kutentha, ndipo malaya a aluminiyumu amawonjezeredwa pakati pa mbiya ndi mphete yamagetsi yamagetsi, kotero kuti kusinthasintha kwa pamwamba. kutentha kwa mbiya kungatsimikizidwe .

5. Kuzizira gawo

Gawoli limalimbikitsa kuziziritsa ndi kupanga zinthu.Panthawiyi, kutentha kwa zinthuzo kumatha kutsika pansi pa 250 ℃, ndi chofunikira kuti kutentha ndi> 200 ℃ pamene zinthuzo zimatulutsidwa kuchokera ku chubu chopyapyala chokhala ndi mipanda.Kenako, chitoliro chomwe chimatuluka mupaipi yopyapyala yokhala ndi mipanda yopyapyala imayenera kuziziritsidwa mumlengalenga kuti izitha kuziziritsa.Zindikirani kuti ngati gawo loziziritsa liri lalifupi kwambiri, mankhwalawa adzalowa m'malo oziziritsa mpweya pasadakhale, zomwe zingapangitse kuti katunduyo akhale wamkulu kwambiri, kuchepetsa kuchepa, ndikuwonjezera kupsinjika kwamkati.Pofuna kupititsa patsogolo ubwino wa mankhwala, ndodo yapakati iyenera kukhala yayikulu moyenerera kuposa kutalika kwa mbiya kuti zitsimikizire kuti ndodo yapakati imatha kugwira ntchito yabwino yothandizira pozizira mpweya wa mankhwala.