Filimu ya Polyethylene Yolemera Kwambiri Kwambiri
Ntchito:
Ma envulopu osungira malo osalala komanso a njanji a makina odzaza mabotolo, makina olembera, makina ogulitsa, ndi zina zotero.
Zivundikiro za zivundikiro zotsogolera lamba wonyamula katundu ndi matebulo pamwamba pa makina osiyanasiyana otumizira katundu.
Ma envulopu opangira ma mandrel a makina osiyanasiyana opaka mafilimu ndi mapepala.
Kwa gasket mkati.
Ma liners a malo osiyanasiyana otulutsira madzi pansi.
Zipangizo zotsetsereka zogwiritsira ntchito zipangizo zapakhomo ndi makina odzipangira okha.
Zipangizo zotsetsereka zoyendetsera malo otsetsereka a makina ojambulira.
Zipangizo zotsetsereka zogwiritsira ntchito pamwamba pa makina otsetsereka a ulusi.
Zipangizo zotsetsereka za pamwamba pa makina omangira mabuku.
Zipangizo zotsetsereka zogwiritsira ntchito malo otsetsereka a makina osindikizira.
Tengani chitsanzo cha mbewa:
Poyerekeza ndi Teflon (polytetrafluoroethylene PTFE), zinthu zomwe zimagwiritsidwa ntchito mu mapepala achikhalidwe a mbewa, filimu ya polyethylene UPE yokhala ndi mamolekyulu ambiri imakhala yolimba kwambiri. Kapangidwe ka UPE kodzipaka mafuta kokha kali pafupi ndi ka zinthu za Teflon. Nthawi yomweyo, poganizira mtengo, kuchuluka kwa filimu ya polyethylene UPE yokhala ndi mamolekyulu ambiri ndi kochepa, ndipo polyethylene (UPE) yokhala ndi mamolekyulu ambiri ndi yotsika ndi 50% kuposa Teflon pakutembenuka kwa sikweya. Chifukwa chake, filimu ya polyethylene (UPE) yokhala ndi mamolekyulu ambiri pang'onopang'ono yasintha pang'onopang'ono ferroazol ngati chisankho choyamba cha zipangizo zopangira ma foot pad.
Kugwiritsa ntchito m'munda wa tepi:
Tepi yomatira yomwe imakhudzidwa ndi kupanikizika yochokera pa filimu ya UHMWPE komanso yokhala ndi chotulutsira. Poyerekeza ndi matepi ena omatira omwe amagwiritsa ntchito filimu ya resin, kukana kwake kukhudzidwa kumakhala kwakukulu, kukana kukwawa ndi kudzipaka mafuta okha ndikwabwino.
Kukula kwanthawi zonse
| Kukhuthala | M'lifupi | Mtundu |
| 0.1 ～0.4mm | 10～300mm | wakuda, woyera kapena wosinthidwa |
| 0.4 ～1mm | 10～100mm |
Chiyambi cha UHMWPE:
Polyethylene yolemera kwambiri ya molekyulu (UHMW-PE) imatanthauza polyethylene yolunjika yokhala ndi kulemera kwapakati kwa molekyulu yoposa 1.5 miliyoni. Chifukwa cha kulemera kwake kwakukulu kwa molekyulu (polyethylene wamba ndi 20,000 mpaka 300,000, UHMW-PE ili ndi magwiridwe antchito osayerekezeka poyerekeza ndi polyethylene wamba ndi mapulasitiki ena auinjiniya:
1) Kukana kwambiri kutopa, kokwera kasanu kuposa nayiloni 66 ndi PTFE, kokwera kasanu ndi kamodzi kuposa chitsulo cha carbon, ndipo ndi bwino kwambiri pakati pa ma resini onse opangidwa pakadali pano.
2) Mphamvu ya kugwedezeka ndi yayikulu kwambiri, yomwe ndi yowirikiza kawiri kuposa polycarbonate ndi yowirikiza kasanu kuposa ABS, ndipo imatha kukhalabe yolimba kwambiri kutentha kwa nayitrogeni yamadzimadzi (-196 ℃).
3) Katundu wabwino wodzipaka mafuta, katundu wake wodzipaka mafuta ndi wofanana ndi wa PTFE, ndipo chiŵerengero cha kukangana ndi 0.07-0.11 chokha; ndi 1/4-1/3 yokha ya chiŵerengero cha kukangana kwa chitsulo.
4) Mphamvu yoyamwa ya shock energy ndiyo yapamwamba kwambiri kuposa mapulasitiki onse, ndipo mphamvu yochepetsera phokoso ndi yabwino kwambiri.
5) Ili ndi kukhazikika kwa mankhwala ambiri ndipo imatha kukana zinthu zosiyanasiyana zowononga komanso zinthu zachilengedwe mkati mwa kutentha kwina ndi kuchuluka kwake.
6) Mphamvu yolimbana ndi kumatira mwamphamvu, yachiwiri kwa "Plastic King" PTFE.
7) Ndi yaukhondo komanso yopanda poizoni, ingagwiritsidwe ntchito ikakhudzana ndi chakudya ndi mankhwala.
8) Kuchuluka kwake ndi kochepa kwambiri pakati pa mapulasitiki onse opanga uinjiniya, 56% yopepuka kuposa PTFE ndi 22% yopepuka kuposa polycarbonate; kuchulukira kwake ndi 1/8 ya chitsulo, ndi zina zotero.
Chifukwa cha ntchito yabwino kwambiri yomwe yatchulidwa pamwambapa, UHMW-PE imatchedwa "pulasitiki yodabwitsa" ndi mayiko aku Europe ndi America ndipo yakhala ikuyamikiridwa komanso kugwiritsidwa ntchito kwambiri m'mafakitale ambiri.
