Nekuenderera mberi kwekusimudzira hupfumi hwenyika uye kuenderera mberi kwenharaunda, yakapa hupfumi hwezvinhu zvevatengi, kugadzira mamiriro akanaka ekuvandudza mararamiro evanhu uye kutsvaga hupenyu hwemunhu, nekudaro kukurumidza kudiwa kwezvinhu zvevatengi, uye TPU. zvigadzirwa ndezvimwe zvacho, saka chii chinofanira kutariswa muTPU jekiseni rekuumba maitiro? Zvadaro, tichazvisuma zvakadzama.
1. Iro jekiseni rinokurumidza uye nzvimbo yekumanikidza kutendeuka inofanira kuiswa zvakarurama. Kusaruramisa chinzvimbo kunowedzera kuoma kwechikonzero chekuongorora, izvo zvisingabatsiri kukurumidza uye kwakarurama kugadzirisa maitiro.
2. Kana hunyoro hweTPU huchipfuura 0.2%, hazvizongokanganisa kutaridzika kwechigadzirwa, asiwo ma mechanical properties zvichava pachena kuparara, uye jekiseni-yakaumbwa chigadzirwa chichava nekushaya elasticity uye simba rakaderera. Naizvozvo, inofanira kuomeswa patembiricha ye80°C kusvika 110°C kwemaawa maviri kusvika matatu tisati taumbwa jekiseni.
3. Kudzora kwekushisa kwekugadzirisa kune zvakakosha pakukura kwekupedzisira, chimiro uye deformation yechigadzirwa. Iyo tembiricha yekugadzirisa inoenderana negiredhi reTPU uye chaiwo mamiriro ekugadzira mold. Iyo yakajairika maitiro ndeyekuti kuti uwane shrinkage diki, zvinodikanwa kuwedzera tembiricha yekugadzira.
4. Kunonoka uye kwenguva refu kubata kumanikidza kunotungamira kune molecular orientation. Kunyangwe zvichikwanisika kuwana diki chigadzirwa saizi, deformation yechigadzirwa yakakura, uye mutsauko pakati pekuchinjika uye longitudinal shrinkage yakakura. Huru yekubata inomanikidza ichaitawo kuti colloid iwedzere-kudzvanywa mu mold, uye saizi yechigadzirwa mushure mekudhirowa yakakura kupfuura saizi yegomba rekuumbwa.
5. Kusarudzwa kwejekiseni molding machine model inofanira kunge yakakodzera. Diki-saizijekiseni kuumba zvigadzirwainofanira kusarudzwa semakina madiki ekuumba majekiseni sezvinobvira, kuitira kuti uwedzere jekiseni sitiroko, kufambisa chinzvimbo chekutonga, uye zvine musoro kushandura jekiseni kumhanya uye kumanikidza.
6. Iyo dhiramu yemuchina wekuumba jekiseni unofanirwa kucheneswa, uye kusanganiswa kwemamwe mashoma ezvimwe zvigadzirwa zvinoderedza simba remagetsi rechigadzirwa. Madhiramu akacheneswa neABS, PMMA uye PE anofanirwa kucheneswa zvakare neTPU nozzle material isati yaiswa jekiseni kuti ibvise zvakasara mudhiramu. Paunenge uchichenesa hopper, kutarisisa kwakanyanya kunofanirwa kubhadharwa kucheneswa kwehushoma hwezvinhu zvakasvibirira nezvimwe zvivakwa muchikamu chekubatanidza pakati pehopper uye hwaro hwejekiseni molding muchina. Ichi chikamu chinoregeredzwa nyore nyore nevazhinji vashandi vehunyanzvi mukugadzira.
Nguva yekutumira: Jul-13-2022
