Na nhazi ihe nkiri, a na-agbanye otu ụdị ihe n'ime ụdị ihe nkiri ọzọ e mere ma ọ bụ n'ụdị ihe nkiri dị iche iche nke emere na nrapado na-ejikọta ọnụ iji mepụta ihe nkiri multilayer.A na-akpọ ngwaahịa a ihe nkiri mejupụtara.Ihe nkiri jikọtara ọnụnwere ọtụtụ n'ime njirimara nke ihe nkiri mejupụtara, ma e nwere otu ihe dị iche, ya bụ, ihe niile na-ekpuchi ihe nkiri nke ihe nkiri ahụ na-ekpochapụ n'otu oge, na n'ígwé na-ejikọta ya na-ekpo ọkụ na-agbaze na-enweghị usoro lamination.
Ihe eji eme ihe nkiri mejupụtara na-abụkarị plastik, mana enwere ike iji akwụkwọ, foil metal (na-abụkarị aluminum) ma ọ bụ akwa akwa.All layers nkeihe nkiri jikọtara ọnụna-apụ apụ n'otu oge ahụ, n'ihi ya, a gaghị enwe aluminom foil, akwụkwọ na ihe ndị ọzọ na-abụghị plastik.
Multi-layer co-extrusion mgbochi akpụkpọ ahụ bụ ihe nkiri mejupụtara na-arụ ọrụmere site na iji otutu extruders extrude na resin na elu ihe mgbochi arụmọrụ na agbaze nke ọzọ resins site a nkịtị anwụ.Multi-layer co-extrusion composite bụ usoro mmepụta ihe mejupụtara akwụkwọ ndụ akwụkwọ ndụ, ọkachasị maka ụlọ ọrụ nkwakọ ngwaahịa nri ugbu a, akụrụngwa a na-eji bụ ihe ndị United States Food and Health and Safety Agency kwadoro, a na-enyekwa ndị nke ọ bụla akụrụngwa n'otu n'otu. oyi akwa site na pipeline njem pụrụ iche.Enweghị mkpughe nke akụrụngwa na mmetọ gburugburu ebe obibi na usoro nhazi.Ya mmechi oyi akwa mere nke gbanwetụrụ LLDPE dị ka akụrụngwa, nke na-adịghị egbu egbu na gburugburu ebe obibi, nri na ahụ mmadụ na-agaghị egosi na omenala akọrọ compound, ya bụ, ihe a na-akpọ ihe mgbaze fọdụrụnụ onu, na-enweghị n'efu gas mmetọ;Ọ dịkwa iche na akọrọ compounding, ihe mgbaze-free compounding na izugbe otu oyi akwa extrusion compounding usoro, na-achọ ihicha oven maka ọgwụgwọ, otú ike oriri bụkwa obere.Tụkwasị na nke ahụ, usoro nchịkọta ihe nchịkọta multi-layer co-extrusion composite nwekwara uru ndị a.
(1) Usoro nhazi ihe mejupụtara nke multi-layer dị ọnụ ala na-eji ụdị resin dị iche iche nwere ọrụ dị iche iche.Enwere ike iji naanị otu usoro nke ịkpụzi ihe na-emepụta ihe na-emepụta ihe nkiri multi-functional composite composite, nke nwere ike ibelata mmepụta ihe.Na mgbakwunye, ọ nwekwara ike ibelata arụmọrụ achọrọ nke akụrụngwa resin ka ọ bụrụ nke kacha nta, na ọkpụrụkpụ kacha nta nke otu oyi akwa nwere ike iru 2 ~ 3 μ m.Ọ nwere ike ibelata iji resin dị oke ọnụ, si otú ahụ belata ọnụ ahịa ihe onwunwe.
(2) Nkà na ụzụ co-extrusion multi-layer na-agbanwe agbanwe nwere ike dakọtara dị iche iche akụrụngwa dị iche iche na nchikota dị iche iche nke na-eme ihe zuru ezu nke akụrụngwa na ihe dị iche iche na-etolite n'otu oge.Ọ bụghị oke site na nkọwa ngwaahịa dị mkpa nke ahịa ma nwee ike gboo mkpa nke oge nkwakọ ngwaahịa dị iche iche.N'ígwé ndị ọzọ, otú ahụ ka nhazi nhazi ahụ na-agbanwe ma na-ebelata ọnụ ahịa.
(3) Nrụpụta arụ ọrụ dị elu nke ngalaba-extrusion mejupụtara na-ejikọta nrapado gbazere na resin ntọala.Usoro a nwere ike peel dị elu nke ọ na-abụkarị ihe ruru 3N/15mm ma ọ bụ karịa nke ọ dabara maka ihe nkwakọ ngwaahịa izugbe.Maka ngwaahịa ndị chọrọ ike bee dị elu, enwere ike ịgbakwunye resin thermosensitive maka ngwakọta.Ka ọ dị ugbu a, ike bee nwere ike iru 14N / 15mm, ma ọ bụ karịa.
(4) Multi-layer co-extruded composite ngwaahịa nwere ike ikpuchi ihe fọrọ nke nta ka ọ bụrụ mpaghara nkwakọ ngwaahịa, gụnyere nri, ngwaahịa kemịkalụ kwa ụbọchị, ihe ọṅụṅụ, ọgwụ, ihe nkiri nchebe na ọbụna ngwaahịa ikuku.Ka ọ dị ugbu a, ọtụtụ ngwaahịa ihe mejupụtara akọrọ akọrọ na China anabatala usoro mmechi extrusion na mba ofesi.Ọkpụkpọ ntacha eze na-enweghị ike imepụta site na usoro ihe mejupụtara akọrọ.Ngwaahịa plastic aluminom mejupụtara akwụkwọ.Aerospace na ngwaahịa ndị ọzọ na-ghọtara site na ngalaba-extrusion usoro.Site na nyocha miri emi na ihe ọhụrụ na-aga n'ihu nke coextrusion composite resin, teknụzụ na akụrụngwa, ihe mejupụtara ngwakọta nke multi-layer ga-agbasa ruo n'ókè sara mbara.
Oge nzipu: Eprel-17-2023