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Nekuti viscosity ye-ultra-high molecular weight polyethylene (UHMW-PE) yakanyungudutswa yakakwira kusvika 108Pa*s, fluidity haina kusimba zvakanyanya, uye melt index yayo ingangoita zero, zvinonetsa kugadziridzwa nenzira dzemuchina. .Ultrahigh molecular weight polyethylene (UHMW-PE) yekugadzira tekinoroji yakakurumidza kuvandudzwa, kuburikidza neshanduko yeyakajairwa kugadzirisa michina, yakagadzira ultrahigh molecular weight polyethylene (UHMW-PE) kubva pakutsikirira kwekutanga - sintering molding development kusvika extrusion, blowing molding and injection. kuumba uye dzimwe nzira dzakakosha dzekuumba.
General nzira
1. Kutsikirira uye sintering
(1) Kutsikirira uye sintering ndiyo yakanyanya kugadzirwa nzira yeultra-high molecular weight polyethylene (UHMW-PE).Kubudirira kwekugadzira kweiyi nzira kwakadzikira, uye oxidation uye kudzikisira zviri nyore kuitika.Kuti uvandudze hunyanzvi hwekugadzira, kupisa kwemagetsi kwakananga kunogona kushandiswa
(2) Ultra-yakakwira yekumhanyisa fusion nzira yekugadzira, uchishandisa blade type mixer, iyo yakanyanya kumhanya yekutenderera kweblade inogona kusvika 150m / s, kuitira kuti zvinhu zvikwire kusvika pakudziya kwekugadzirisa mumasekondi mashoma.
2. Extrusion molding
Extrusion molding midziyo inonyanya kusanganisira plunger extruder, single screw extruder uye twin screw extruder.Twin-screw extruder inonyanya kushandiswa munzira imwechete inotenderera mapatya-screw extruder.
Mumakore ekuma1960, yakawanda yeplunger extruder yakashandiswa.Pakati pemakore ekuma1970, Japan, United States neWest Germany dzakatevedzana dzakagadzira imwe screw extrusion process.Mitsui Petrochemical Company yekuJapan yakatanga kubudirira kubudirira kweround rod extrusion technology muna 1974. Pakupera kwa1994, φ45 type ultra-high molecular weight polyethylene (UHMW-PE) special single screw extruder yakagadzirwa, uye kubudirira kwe φ65 type single. screw extruder pombi yekugadzira maindasitiri mutsetse wakawanikwa muna 1997.
(3) Kuumba jekiseni
Mitsui Petrochemicals yakagadzira nzira yekuumba jekiseni muna 1974 ndokuitengesa muna 1976, ichiteverwa nekudzokorora kuumba jekiseni jekiseni.Muna 1985, Hoechst akazivawo iyo screw jekiseni yekuumba maitiro eUHMW-PE.Muna 1983, muchina wemba XS-ZY-125A jekiseni wakagadziridzwa.Iyo yekupedzisira-yakakwirira molecular huremu polyethylene (UHMW-PE) inotsigira vhiri uye axle sleeve yepombi yemvura yemutsetse wekugadzira doro rekugadzira yakabayiwa zvakabudirira.Muna 1985, mubatanidzwa wekugadzira wekushandiswa kwekurapa wakabaiwawo zvakabudirira.
(4) kuumba mhepo
Ultra-yakakwirira molecular uremu polyethylene (UHMW-PE) kugadzirisa, kana zvinhu zvakaburitswa kubva mumuromo zvikafa, nekuda kwekupora kupora uye kumwe kuderera, uye kanenge pasina kusagika chiitiko, saka midziyo isina maburi, kunyanya midziyo mihombe, senge tangi remafuta, drum blow molding kugadzira mamiriro akanaka.Ultrahigh molecular weight polyethylene (UHMW-PE) blow molding inogonawo kutungamira kune firimu rekuita repamusoro rine simba rakadzikama munzira yakatwasuka uye yakachinjika, inogadzirisa dambudziko rekuti kusimba kwefirimu reHDPE hakuenderane muya yakatwasuka uye yakatwasuka kune a. nguva refu uye zviri nyore kukonzera longitudinal kukuvara.