nūhou

Ma muli o ke kiʻekiʻe o ka viscosity o ultra-high molecular weight polyethylene (UHMW-PE) i loko o ka moku i hoʻoheheʻe ʻia e like me 108Pa * s, ʻilihune loa ka wai, a ʻo kona helu heheʻe he aneane ʻole, paʻakikī ke hana ʻia e nā ʻano mīkini maʻamau. .Ua hoʻomohala wikiwiki ʻia ka ʻenehana hana ʻenehana ultrahigh molecular weight polyethylene (UHMW-PE), ma o ka hoʻololi ʻana o nā mea hana maʻamau, ua hana i ka polyethylene kaumaha ultrahigh molecular weight (UHMW-PE) mai ke kaomi mua ʻana - hoʻomohala hoʻoheheʻe sintering a hiki i ka extrusion, blow molding a injection. ka hoʻoheheʻe ʻana a me nā ʻano hana kūikawā ʻē aʻe.
ʻano maʻamau
1. Ke kaomi a me ka sintering
(1) ʻO ke kaomi ʻana a me ka sintering ʻo ia ke ʻano hana mua loa o ka polyethylene kaumaha ultra-high molecular weight (UHMW-PE).He haʻahaʻa loa ka hana ʻana o kēia ʻano hana, a ua maʻalahi ka hana ʻana a me ka degradation.I mea e hoʻomaikaʻi ai i ka hana hana, hiki ke hoʻohana ʻia ka hoʻomehana uila pololei
(2) Ultra-high speed fusion processing method, hoʻohana i ka blade type mixer, hiki i ka 150m / s ke kiʻekiʻe o ka wikiwiki o ka hoʻololi ʻana, i hiki i ka mea ke piʻi i ka mahana hana i nā kekona wale nō.
2. Hoʻoheheʻe Extrusion
ʻO nā mea hana hoʻoheheʻe hoʻoheheʻe ʻia ka mea nui e pili ana i ka plunger extruder, single screw extruder a me twin screw extruder.Hoʻohana pinepine ʻia ʻo Twin-screw extruder ma ka ʻaoʻao like e hoʻohuli ana i ka extruder māhoe-screw.
I ka makahiki 1960, ua hoʻohana ʻia ka hapa nui o ka plunger extruder.Ma ka waena o nā makahiki 1970, ua hoʻomohala ʻo Iapana, ʻAmelika Hui Pū ʻIa a me West Germany i ke kaʻina hana extrusion screw hoʻokahi.Mitsui Petrochemical Company o Iapana mua loaʻa i ka holomua o ka poepoe kookoo extrusion enehana ma 1974. I ka hopena o 1994, φ45 type ultra-kiʻekiʻe molecular kaumaha polyethylene (UHMW-PE) kūikawā hoʻokahi wili extruder ua hoʻomohala, a me ka holomua o φ65 type hookahi. Ua hoʻokō ʻia ka laina hana ʻenehana extruder pipe i ka makahiki 1997.
(3) Hoʻoheheʻe ʻia
Ua hoʻomohala ʻo Mitsui Petrochemicals i ke kaʻina hana hoʻoheheʻe ʻia i ka makahiki 1974 a ua kūʻai aku ʻo ia i ka makahiki 1976, a ukali ʻia e ka reciprocating screw injection molding.I ka makahiki 1985, ua ʻike pū ʻo Hoechst i ke kaʻina hana hoʻoheheʻe screw o UHMW-PE.I ka makahiki 1983, ua hoʻololi ʻia ka mīkini injection XS-ZY-125A.ʻO ka huila kākoʻo polyethylene (UHMW-PE) kiʻekiʻe kiʻekiʻe molecular weight a me ka lima axle no ka pauma wai no ka laina hana ʻana i ka pia ua hoʻopiʻi maikaʻi ʻia.I ka makahiki 1985, ua hoʻopio maikaʻi ʻia ka hui hana no ka lāʻau lapaʻau.
(4) puhi puhi
Ultra-kiʻekiʻe molecular kaumaha polyethylene (UHMW-PE) kaʻina hana, i ka wā e make ai ka extrusion mea mai ka waha, ma muli o ka elastic recovery a me kekahi shrinkage, a aneane ʻaʻohe mea sagging, no laila nā ipu kīwaha, ʻoi aku ka nui o nā ipu, e like me ka pahu aila, ka pahu pahu e hana i nā kūlana maikaʻi.Ultrahigh molecular weight polyethylene (UHMW-PE) blow molding hiki ke alakaʻi i kahi kiʻiʻoniʻoni kiʻekiʻe me ka ikaika kaulike ma ka ʻaoʻao kū a me ka ʻaoʻao, e hoʻonā i ka pilikia ʻaʻole kūlike ka ikaika o ka kiʻi HDPE i ka ʻaoʻao kū a me ka pae no kahi. lōʻihi a maʻalahi hoʻi e hana i ka pōʻino lōʻihi.