Gukuramo TPU (Thermoplastic Polyurethane)

1. Gutegura ibikoresho

• TPUGuhitamo Pellets: HitamoTPU pellethamwe nubukomezi bukwiye (ubukana bwinkombe, mubisanzwe kuva kuri 50A - 90D), icyerekezo cyo gushonga (MFI), hamwe nibiranga imikorere (urugero, kurwanya abrasion nyinshi, elastique, hamwe nubushakashatsi bwimiti) ukurikije ibicuruzwa byanyuma bisabwa.
• Kuma:TPUni hygroscopique, igomba rero kubanza - gukama mbere yo gukuramo kugirango ikureho ubuhehere. Ubushuhe burashobora gutera ibibyimba, ubusembwa bwubuso, no kugabanya imiterere yubukorikori mubicuruzwa byakuwe hanze. Kuma bisanzwe bikorwa mubushyuhe buri hagati ya 80 - 100 ° C mumasaha 3 - 6.

2. Inzira yo gukuramo ibicuruzwa

• Ibice bya Extruder
  • Barrale: Akabari ka extruder gashyuha muri zone nyinshi kugirango gahoro gahoro pelleti ya TPU. Ubushuhe bwubushuhe bwashizweho neza kugirango ushire neza neza bitarenze - gushyushya ibikoresho, bishobora gutera kwangirika. Kurugero, ubushyuhe bwagace kagaburira ubushyuhe bushobora kuba hafi 160 - 180 ° C, agace ko guhunika hafi 180 - 200 ° C, hamwe na metero zipima hafi 200 - 220 ° C, ariko izo ndangagaciro zirashobora gutandukana bitewe nurwego rwa TPU.
  • Umuyoboro: Imashini izunguruka muri barriel, itanga, ikanda, kandi ishongaTPU pellet.Ibishushanyo bitandukanye bya screw (urugero, imwe - screw cyangwa impanga - screw extruders) irashobora kugira ingaruka ku kuvanga, gushonga neza, nigipimo cyibisohoka mubikorwa. Impanga - screw extruders mubisanzwe itanga kuvanga neza no gushonga kimwe, cyane cyane kubintu bigoye.
• Gushonga no Kuvanga: Mugihe pelleti ya TPU igenda inyura muri barriel, igenda ishonga buhoro buhoro hamwe nubushyuhe buva muri barriel hamwe nogosha biterwa no kuzunguruka. TPU yashongeshejwe ivanze neza kugirango habeho gushonga.
• Gupfa Gushushanya no Gushushanya: TPU yashongeshejwe noneho ihatirwa gupfa, igena umusaraba - imiterere yibicuruzwa byakuwe hanze. Urupfu rushobora guhindurwa kugirango rutange imiterere itandukanye, nk'uruziga rw'igituba, urukiramende kuri profili, cyangwa igorofa y'impapuro na firime. Nyuma yo guca mu rupfu, TPU yakuweho irakonja kandi igakomera, mubisanzwe unyuze mu bwogero bwamazi cyangwa ukoresheje gukonjesha ikirere.

3. Kohereza - Gutunganya

• Calibration na Sizing: Kubicuruzwa bimwe bisohotse, kalibrasi hamwe nubunini buringaniye birasabwa kugirango ibipimo bifatika. Ibi birashobora kuba bikubiyemo gukoresha amaboko ya kalibrasi, ibigega bingana na vacuum, cyangwa ibindi bikoresho kugirango ugenzure diameter yo hanze, ubunini, cyangwa ibindi bipimo byingenzi byibicuruzwa.
• Gukata cyangwa Kuzunguruka: Ukurikije porogaramu, ibicuruzwa bya TPU byakuweho byaciwe muburebure bwihariye (kuri profil, tebes, nibindi) cyangwa gukomeretsa kumuzingo (kumpapuro na firime).