Katswiri wopanga makina opangira kutentha.
Chilankhulo
Katswiri wopanga makina opangira kutentha.
Zomwe Zimayambitsa Kuwonongeka kwa Mapepala a PET
Zomwe zimayambitsa kusakhazikika pamapepala a PET ndizovuta ndipo zitha kukhala chifukwa cha zinthu zingapo zofunika:
1. Chithandizo cha Kutentha Kwambiri Pakupanga mapepala a PET, chithandizo cha kutentha chimafunika. Komabe, ngati chithandizo cha kutentha chikuchulukirachulukira, chikhoza kupangitsa kuti kristalo ikhale yochuluka kwambiri, zomwe zimapangitsa kuti pepalalo likhale lolimba komanso losavuta kusweka.
2. Kuwonongeka kwa Zowonjezera Zowonjezera zosiyanasiyana monga plasticizers, stabilizers, ndi masterbatches amtundu amaphatikizidwa mu mapepala a PET. Kuwonongeka kwa zowonjezera izi kungapangitse kutayika kwa kulimba koyambirira kwa pepala, ndikupangitsa kuti ikhale yosalimba. Kuphatikiza apo, zinthu monga kugwiritsa ntchito mopitilira muyeso, kugwiritsa ntchito mochepera, kapena kusanja kosayenera kwa zowonjezera kumatha kukhudzanso mtundu wa mapepala a PET.
3. Zosungirako Zosayenera Malo osungirako amakhudza kwambiri khalidwe la mapepala a PET. Ngati amasungidwa m'malo omwe ali ndi kutentha kwambiri kapena chinyezi, mapepala a PET amatha kukhala ndi okosijeni kapena kuwonongeka, zomwe zimatsogolera ku brittleness.
4. Nkhani Zopangira Zopangira Kusamalidwa kosayenera panthawi yopanga kungakhudzenso khalidwe la mapepala a PET. Zinthu monga njira ya extrusion, kuwongolera kuziziritsa, ndi kusintha kwamphamvu kumatha kusintha mawonekedwe amkati a pepala, zomwe zimapangitsa kuti makinawo awonongeke komanso kuwonjezereka kwa brittleness.
Njira Zopewera za PET Sheet Brittleness
Pofuna kupewa brittleness mu mapepala a PET, njira zingapo zingatengedwe:
1. Kuwotcha Kutentha Kutentha Kutentha Pakupanga, ndikofunikira kuti muziwongolera kutentha kwa kutentha ndi nthawi yayitali kuti mupewe crystallization, yomwe ingayambitse kuphulika.
2. Zowonjezera Zoyenera Zowonjezera Zowonjezera zimagwira ntchito yofunika kwambiri pamtundu wa mapepala a PET. Ndikofunika kusankha ndikuwonjezera moyenera malinga ndi zosowa zenizeni. Kuphatikiza apo, kuyezetsa pafupipafupi kuyenera kuchitidwa kuti muwone momwe zowonjezerera zilili kuti zipewe kuwonongeka komwe kungakhudze kulimba kwa pepalalo.
3. Kuwongolera Zinthu Zosungirako Mapepala a PET amayenera kusungidwa pamalo owuma, mpweya wabwino, komanso chinyezi, kupewa kutentha ndi chinyezi. Kwa mapepala osungidwa kwa nthawi yayitali, kuyanika kungagwiritsidwe ntchito kuchepetsa chinyezi.
4. Onetsetsani Zochita Zopangira Zoyenera Pakupanga, ogwira ntchito ayenera kutsatira njira zoyenera kuti ateteze nkhani zomwe zimayambitsidwa ndi njira yowonjezera, kuzizira, kapena kusintha kwa mphamvu zomwe zingakhudze mapangidwe amkati ndi machitidwe a makina a mapepala a PET.
5. Mapepala a PET ndi zipangizo zopangira mapepala apamwamba, koma brittleness ndi nkhani yofala muzogwiritsira ntchito. Pofuna kupewa brittleness, kusamala kuyenera kuperekedwa pakuwongolera kapangidwe ndi kagwiritsidwe ntchito, monga chithandizo cha kutentha, kusankha kowonjezera ndi mlingo, ndi momwe amasungira. Poyang'anira zinthu izi mosamalitsa, ndizotheka kupanga mapepala a PET okhala ndi magwiridwe antchito okhazikika.
Izi Makina Atatu Odzichitira okha Pulasitiki Pressure Thermoforming ndi zopangira zida zapulasitiki zosiyanasiyana (thireyi ya dzira, chidebe cha zipatso, chidebe cha chakudya, zotengera phukusi, ndi zina) zokhala ndi mapepala a thermoplastic, monga PS, PET, HIPS, PP, PLA, etc
Katswiri wopanga makina opangira kutentha.
