Kumangira jekeseni, kungoyankhula chabe, ndi njira yogwiritsira ntchito zipangizo zachitsulo kuti zipange chibowo chofanana ndi gawo, kugwiritsira ntchito mphamvu ya pulasitiki yamadzimadzi yosungunuka kuti ilowetse muzitsulo ndikusunga kupanikizika kwa nthawi, ndiyeno kuziziritsa pulasitiki kusungunula ndi kuchotsa mbali yomalizidwa. Lero, tiyeni tikambirane njira zingapo wamba akamaumba.
1. Kuchita thovu
Kuumba thovu ndi njira yopangira yomwe imapanga porous mkati mwa pulasitiki ndi njira zakuthupi kapena zamankhwala.
Njira:
a. Kudyetsa: Dzazani nkhungu ndi zinthu zopangira thovu.
b. Kutentha kwa clamping: Kutentha kumafewetsa tinthu tating'onoting'ono, kumatulutsa thovu m'maselo, ndikupangitsa kuti chotenthetsera chilowerere kuti chiwonjezere zopangira. Pambuyo pake, chiwombankhangacho chimapangidwa ndi nkhungu. Zopangira zowonjezera zimadzaza nkhungu yonse ndi zomangira zonse.
c. Kuzizira kozizira: Lolani kuti zinthu zizizizira komanso kuti ziwonongeke.
Ubwino:Chogulitsacho chimakhala ndi mphamvu yowonjezera yamafuta komanso kukana kwabwino.
Zoyipa:Zizindikiro za ma radial zimapangika mosavuta kutsogolo kwa zinthu zomwe zikuyenda. Kaya ndi thovu lamankhwala kapena laling'ono-thovu, pali zodziwikiratu zotuluka zoyera. Ubwino wa pamwamba wa zigawozo ndi wosauka, ndipo siwoyenera ku zigawo zomwe zili ndi zofunikira zapamwamba.
2. Kuponya
Amatchedwansokuponyera akamaumba, njira yomwe utomoni wamadzimadzi wosakaniza polima umayikidwa mu nkhungu kuti achite ndi kulimba pansi pa kukakamizidwa kwabwinobwino kapena kupanikizika pang'ono. Nayiloni monomers ndi ma polyamides Ndi kupita patsogolo kwaukadaulo, lingaliro lachikhalidwe la kuponyera lasintha, ndipo mayankho a polima ndi dispersions kuphatikiza phala la PVC ndi mayankho atha kugwiritsidwanso ntchito poponya.
Kumangira kwa cast kunagwiritsidwa ntchito popangira ma resins a thermosetting ndipo pambuyo pake zida za thermoplastic.
Njira:
a. Kukonzekera nkhungu: Zina zimafunika kutenthedwa kale. Tsukani nkhungu, ikanipo kale kutulutsa nkhungu ngati kuli kofunikira, ndipo tenthetsani nkhunguyo.
b. Konzani zamadzimadzi oponyera: Sakanizani zida zapulasitiki, zochizira, chothandizira, ndi zina zambiri, tulutsani mpweya ndikuwuyika mu nkhungu.
c. Kuponya ndi kuchiritsa: Zopangirazo zimapangidwa ndi polymer ndikuchiritsidwa mu nkhungu kuti zikhale zopangidwa. Njira yowumitsa imatsirizidwa pansi pa kutentha kwapakati.
d. Kugwetsa: Kuononga pambuyo pochiritsa kwatha.
Ubwino:Zida zofunikira ndizosavuta ndipo palibe kukakamiza kumafunika; zofunikira pa mphamvu ya nkhungu sizokwera; mankhwalawa ndi yunifolomu ndipo kupsinjika kwamkati kumakhala kochepa; kukula kwa mankhwala sikuletsedwa, ndipo zipangizo zokakamiza zimakhala zosavuta; mphamvu ya nkhungu yofunikira ndi yochepa; workpiece ndi yunifolomu ndipo kupsinjika kwamkati kumakhala kochepa, zoletsa kukula kwa workpiece ndizochepa ndipo palibe zipangizo zokakamiza zomwe zimafunikira.
Zoyipa:Chogulitsacho chimatenga nthawi yayitali kuti chipangidwe ndipo mphamvu zake ndizochepa.
Ntchito:Zosiyanasiyana mbiri, mipope, etc. Plexiglass ndi ambiri mmene pulasitiki kuponyera mankhwala. Plexiglass ndi chinthu chapamwamba kwambiri choponyera pulasitiki.
3. Kuponderezana akamaumba
Imadziwikanso kuti kuumba filimu ya pulasitiki, ndi njira yopangira mapulasitiki a thermosetting. The workpiece ndi kuchiritsidwa ndi kupangidwa mu nkhungu patsekeke pambuyo Kutentha ndi kukanikiza ndiyeno Kutentha.
Njira:
a. Kutentha kwa chakudya: Kutenthetsa ndi kufewetsa zipangizo.
b. Pressurization: Gwiritsani ntchito chomangira kapena plunger kukanikiza zinthu zofewa komanso zosungunula mu nkhungu.
c. Kupanga: Kuziziritsa ndi kugwetsa pambuyo popanga.
Ubwino:Magulu ochepa a workpiece, kuchepa kwa ndalama zogwirira ntchito, kupanikizika kwamkati mofanana, ndi kulondola kwakukulu; Zovala zochepa za nkhungu zimatha kupanga zinthu zokhala ndi zabwino kapena zowonjezera kutentha.
Zoyipa:Mtengo wapamwamba wopanga nkhungu; kutaya kwakukulu kwa zipangizo zapulasitiki.
Nthawi yotumiza: May-18-2022
