Kukhuthala kwabwino kwa TPU kochokera ku zosungunulira
za TPU
TPU (thermoplastic polyurethanes) imalumikiza kusiyana kwa zinthu pakati pa rabara ndi mapulasitiki. Mitundu yake yosiyanasiyana ya zinthu zakuthupi imalola TPU kugwiritsidwa ntchito ngati rabara yolimba komanso ngati thermoplastic yofewa. TPU yakhala ikugwiritsidwa ntchito kwambiri komanso kutchuka m'zinthu zambirimbiri, chifukwa cha kulimba kwake, kufewa kwake komanso mtundu wake pakati pa zabwino zina. Kuphatikiza apo, ndi yosavuta kuikonza.
Monga zipangizo zamakono komanso zosamalira chilengedwe, TPU ili ndi zinthu zambiri zabwino monga kuuma kwakukulu, mphamvu zambiri zamakanika, kukana kuzizira kwambiri, kugwira ntchito bwino pokonza, kuwonongeka kosawononga chilengedwe, kukana mafuta, kukana madzi ndi kukana nkhungu.
Kugwiritsa ntchito
Kugwiritsa Ntchito: Zomatira Zosungunulira, Mafilimu Omatira Otentha, Zomatira Zovala.
Magawo
| Katundu | Muyezo | Chigawo | D7601 | D7602 | D7603 | D7604 |
| Kuchulukana | ASTM D792 | g/cms | 1.20 | 1.20 | 1.20 | 1.20 |
| Kuuma | ASTM D2240 | Mphepete mwa nyanja A/D | 95/ | 95/ | 95/ | 95/ |
| Kulimba kwamakokedwe | ASTM D412 | MPa | 35 | 35 | 40 | 40 |
| Kutalikitsa | ASTM D412 | % | 550 | 550 | 600 | 600 |
| Kukhuthala (15% mu MEK.25°C) | SO3219 | Cps | 2000+/-300 | 3000+/-400 | 800-1500 | 1500-2000 |
| Ntchito ya Mnimm | -- | °C | 55-65 | 55-65 | 55-65 | 55-65 |
| Mlingo wa Crystallization | -- | -- | Mwachangu | Mwachangu | Mwachangu | Mwachangu |
Mitengo yomwe ili pamwambayi ikuwonetsedwa ngati mitengo yanthawi zonse ndipo siyenera kugwiritsidwa ntchito ngati mafotokozedwe.
Phukusi
25KG/thumba, 1000KG/mphaleti kapena 1500KG/mphaleti, mphaleti yapulasitiki yokonzedwa
Kusamalira ndi Kusunga
1. Pewani kupuma utsi ndi nthunzi zomwe zimatenthetsa thupi
2. Zipangizo zogwirira ntchito zamakina zingayambitse fumbi. Pewani kupuma fumbi.
3. Gwiritsani ntchito njira zoyenera zomangira pansi pogwiritsira ntchito mankhwalawa kuti mupewe kuwononga mphamvu zamagetsi
4. Matupi pansi akhoza kukhala oterera ndipo angayambitse kugwa
Malangizo Osungira: Kuti zinthu zisungidwe bwino, sungani zinthuzo pamalo ozizira komanso ouma. Sungani mu chidebe chotsekedwa bwino.
Zolemba
1. Zipangizo za TPU zomwe zawonongeka sizingagwiritsidwe ntchito pokonza zinthu.
2. Musanapange ulusi, ndikofunikira kuumitsa bwino, makamaka panthawi yopangira ulusi wotulutsa ulusi, kupanga ulusi wopyoza, ndi kupanga ulusi wopyoza filimu, ndi zofunikira kwambiri pa chinyezi, makamaka m'nyengo yamvula ndi madera okhala ndi chinyezi chambiri.
3. Pakupanga, kapangidwe kake, chiŵerengero cha kupsinjika, kuya kwa groove, ndi chiŵerengero cha mbali L/D cha screw ziyenera kuganiziridwa kutengera makhalidwe a chipangizocho. Zomangira zopangira jekeseni zimagwiritsidwa ntchito popanga jekeseni, ndipo zomangira zopangira jekeseni zimagwiritsidwa ntchito popanga jekeseni.
4. Kutengera kusinthasintha kwa zinthuzo, ganizirani kapangidwe ka nkhungu, kukula kwa cholowera cha guluu, kukula kwa nozzle, kapangidwe ka njira yoyendetsera madzi, ndi malo a doko lotulutsira utsi.
Ziphaso
