A na-emepụta extrusion plastik, dị ka profaịlụ UPVC (polyvinyl chloride siri ike) ma ọ bụ ngwaahịa ọkpọkọ, site na ngwakọta, nhazi extrusion, ịkpụzi, iwepụ, na igbutu resin PVC na mgbakwunye ndị metụtara ya. Ihe ndị na-emetụta arụmọrụ nke ngwaahịa na-ekpuchi nzọụkwụ ọ bụla na usoro mmepụta. Nzọụkwụ ọ bụla na-emekọrịta ihe ma na-emetụta ibe ya site na mgbasa ozi nke ngwaahịa. Enwere ike ịkwụ ụgwọ otu nsogbu site na usoro ndị ọzọ dị n'ime oke, yabụ nzọụkwụ ọ bụla na-aghọ akụkụ ahụ. N'ime ha, akụrụngwa akụrụngwa, usoro akụrụngwa na usoro eji arụ ọrụ bụ isi ihe na usoro extrusion plastik, nke na-emetụta ogo na mmepụta nke ịkpụzi extrusion ozugbo. Isiokwu a na-elekwasị anya na mmetụta na extrusion si n'echiche nke extrusion akụrụngwa na akụrụngwa.
N'ozuzu, PVCngwaahịa na-eji ihe mgbakwunye ndị a mee usoro extrusion:
1. PVC resin:
Polyvinyl chloride, nke a na-akpọ PVC n'asụsụ Bekee, bụ plastic polymer synthetic nke atọ emepụtara n'ụwa (mgbe polyethylene na polypropylene gasịrị). PVC bụbu plastik a na-emepụta n'ozuzu ya n'ụwa ma jiri ya mee ihe n'ọtụtụ ebe. Enwere ụdị PVC abụọ: siri ike (mgbe ụfọdụ a na-ebelata dị ka RPVC) na nro. A na-eji polyvinyl chloride siri ike na ọkpọkọ, ọnụ ụzọ na windo. A na-ejikwa ya mee karama rọba, nkwakọ ngwaahịa, ụlọ akụ ma ọ bụ kaadị ndị otu. Ịtinye ihe ndị na-emepụta ihe na-eme ka PVC dị nro na nke ọzọ. Enwere ike iji ya na ọkpọkọ, mkpuchi USB, ala ala, akara akara, ihe ndekọ phonograph, ngwaahịa na-eku ume na ihe ndozi rọba.
stabilizer:
N'ihi na resin PVC bụ resin nke na-ekpo ọkụ, ọ na-amalite ịda mbà mgbe okpomọkụ ruru ihe dịka 90 ruo 130 Celsius, na-ahapụ HCL na-adịghị akwụsi ike ma mee ka resin gbanwee agba odo. Ka ọnọdụ okpomọkụ na-ebili, ụcha resin na-agba ọchịchịrị na ihe anụ ahụ & kemịkal nke ngwaahịa ahụ na-ebelata. Na mgbakwunye na imeziwanye usoro mmepụta nke akụrụngwa resin, idozi nsogbu mmebi ahụ na-agụnye ịgbakwunye stabilizers na resin PVC iji nweta ma wepụ gas HCL ma wepụ mmetụta mmebi nke catalytic ya. Usoro nkwụsi ike nke a na-ejikarị gụnyere: nnu ndu, organotin, ncha ọla na ihe ndị na-eme ka ụwa sie ike.
Mmanu mmanu (PE wax ma ọ bụ Paraffin):
Otu ụdị mgbakwunye iji melite mmanu na ibelata nrapado interface. Dị ka ọrụ si dị, a na-ekewa ha n'ime mmanụ ndị dị n'èzí, ihe ndị na-eme ka ọ dị n'ime na n'ime & n'èzí lubricants. Mmanya na-apụ apụ nwere ike belata esemokwu n'etiti ihe na elu igwe iji gbochie ihe UPVC ka ọ ghara ịrapara na gbọmgbọm na ịghasa mgbe emechara plastik. Ihe mmanu ime ime nwere ike ibelata esemokwu n'etiti ihe dị n'ime ihe ahụ, mee ka njikọ dị n'etiti ụmụ irighiri ma belata viscosity gbazee. Ojiji nke mmanu mmanu nwere mmetụta dị ukwuu n'ibelata ibu nke skru, ibelata ikpo ọkụ, na ịbawanye mmepụta extrusion. Nhazi nke mmanụ mmanu na nhazi ahụ dị ezigbo mkpa.
Ihe njuputa:
Iji meziwanye ike na isi ike nke ngwaahịa, belata nrụrụ ngwaahịa, ma belata ọnụ ahịa akụrụngwa, a na-agbakwunye ihe ndị dị ka CaCO 3 na mmepụta nke ngwaahịa UPVC.
Nhazi nhazi (ACR):
Ebumnuche bụ isi bụ iji melite arụmọrụ nhazi nke ihe, mee ka plasticization nke resin PVC dịkwuo elu, ma melite fluidity, deformation thermal na elu gloss nke ngwaahịa.
Mgbanwe mmetụta:
Ebumnuche bụ isi bụ iji melite mmetụta nguzogide ngwaahịa, melite ike nke ngwaahịa, ma melite mmetụta plasticizing. Mgbanwe ndị a na-ejikarị eme ihe maka UPVC bụ CPE (chlorinated polyethylene) na mgbanwe mmetụta acrylate.
Usoro plasticizing nke akụrụngwa extrusion plastik na mmetụta nke ihe mejupụtara ya:
Enwere ọtụtụ akụrụngwa maka ịkpụzi extrusion plastik. Ndị bụ isi eji maka extruding UPVC ike ngwaahịa bụ counter-atụgharị ejima-ịghasa extrudersconical ejima ịghasa extruder. Ihe ndị na-esonụ na-ekwukarị maka usoro ịme plastik nke a na-ejikarị eme ihe maka extruding UPVC ngwaahịa.
conical ejima-skru extruder na-agbanwe agbanwe:
Oge nzipu: Dec-29-2023
