Plastic extrusion iri kushandiswa kazhinji muindasitiri yepurasitiki yanhasi nekuti inowanikwa nyore uye iri nyore kushanda nayo.Iyo yepurasitiki extrusion maitiro inosanganisira kunyungudutsa epurasitiki zvinhu, kuimanikidza mufa kuti iite iyo inoenderera profiles, wozoicheka kusvika kureba.Iyo nzira isarudzo yakanaka yezvikumbiro zvinoda chigadzirwa chekupedzisira chine chinogara chiri muchinjiko-chikamu.Mutengo wakaderera uye mitengo yakakwira yekugadzira inoita kuti ive sarudzo yakajairika yekugadzira zvigadzirwa zvakaita sepombi, pepa repurasitiki, kubviswa kwemamiriro ekunze, kuvhara waya uye tepi yekunamatira.
Plastic Extrusion Supplies
Usati watanga epurasitiki extrusion process, iwo chaiwo muchina uye zvekushandisa zvinofanirwa kuwanikwa, kunyanya epurasitiki extruder muchina.Ichi chishandiso chiri nyore muchina unofambisa iyo extrusion maitiro kubva pakutanga kusvika pakupedzisira.Izvo zvakakosha zvepurasitiki extruder zvinosanganisira hopper, barrel, screw drive uye screw drive mota.
Chechipiri chinonyanya kukosha chikamu ndeye mbishi thermoplastic zvinhu zvakagadzirirwa extrusion.Mazhinji emabasa eextrusion anovimba nepurasitiki resin (mabheji madiki akasimba) kubvumira kurodha nyore uye nguva dzekunyungudika nekukurumidza.Zvishandiso zvepurasitiki zvakajairika zvinoshandiswa mukuita extrusion zvinosanganisira yakakwirira kukanganisa polystyrene (HIPS), PVC, polyethylene, polypropylene, uye ABS.
Chinhu chekupedzisira chinodiwa kune epurasitiki extrusion ndiyo inofa.Iyo inofa inoshanda senge mold yepurasitiki-mupurasitiki extrusion, inofa inobvumira kunyange kuyerera kwepurasitiki yakanyungudutswa.Kufa kazhinji kunofanirwa kugadzirwa uye kungangoda imwe nguva yekutungamira isati yatanga maitiro ekugadzira.
Specialty Plastic Extrusion Processes
Mazhinji maapplication anodaidzira ehunyanzvi extrusion maitiro kuti awane mibairo yakakwana kana kukurumidzira maitiro ekugadzira.Common specialty extrusion maitiro anosanganisira:
●Yakaputika firimu extrusion:Inoshandiswa kugadzira zvigadzirwa zvemafirimu epurasitiki zvakaita segirosari uye mabhegi ekuchengetera chikafu Iyo inofa mukuita uku inoratidzira yakatwasuka, cylindrical dhizaini inokwevera purasitiki yakanyungudutswa kumusoro sezvainoumba uye kutonhora.
●Co-extrusion:Zvikamu zvinoverengeka zvinowedzerwa panguva imwe chete.Maviri kana anopfuura maextruder anodyisa marudzi akasiyana epurasitiki mune imwechete extrusion musoro.
●Pamusoro pejaketi:Extrusion inoshandiswa kupfekedza chinhu mupurasitiki inodzivirira.Waya yekunze uye tambo jaketi ndiyo inonyanya kushandiswa ye overjacketing.
●Tubing extrusion:Zvakafanana neyechinyakare extrusion, kunze kwekufa kunosanganisira emukati mapini kana mandrels kufambisa kugadzirwa kweasina mapurasitiki zvinhu.
Iyo Yekutanga Maitiro ePlastiki Extrusion
Iyo plastiki extrusion process inotanga nekuiswa kweresin yakasvibirira muhopper ye extruder.Kana iyo resin ikashaya zvekuwedzera zvinodikanwa kune chaiyo application (senge UV inhibitors, anti-oxidants, kana colorants), ivo vanobva vawedzerwa kune hopper.Kana yangove panzvimbo, resin inowanzo dyirwa negiravhiti kuburikidza nehuro yekudyisa yehopper ichidzika mudhiramu reextruder.Mukati medhiramu mune siruu refu, inotenderedzwa iyo inodyisa resin kumberi mudhiramu yakananga kufa.
Sezvo iyo resin inofamba mukati medhiramu, inoiswa pasi pekupisa kwakanyanya kusvika yatanga kunyungudika.Zvichienderana nerudzi rwe thermoplastic, tembiricha yebhari inogona kubva pakati pe400 ne530 degrees Fahrenheit.Mazhinji eextruder ane dhiramu rinowedzera zvishoma nezvishoma mukupisa kubva kumagumo ekurodha kusvika kune pombi yekudya kuti igone kunyungudika zvishoma nezvishoma uye kuderedza mukana wekuparara kwepurasitiki.
Kamwe purasitiki yakanyungudutswa yasvika kumagumo edhiramu, inomanikidzwa kuburikidza nehwindo paki uye inopihwa mupombi yekudyisa inotungamira kufa.Chidzitiro, chakasimbiswa nendiro yekupwanya nekuda kwekudzvinyirirwa kwakanyanya mubhodhoro, inoshanda kubvisa zvinosvibisa zvingave zviripo mupurasitiki yakanyungudutswa.Iyo porosity yechidzitiro, nhamba yezvidzitiro, uye zvimwe zvinhu zvinogona kushandiswa kudzamara kunyunguduka kweyunifomu kuchiitika nekuda kwehuwandu hwakakodzera hwekumanikidzwa kumashure.
Kamwe mupombi yekudyisa, simbi yakanyungudutswa inoiswa mugomba rekufa, kwainotonhora nekuoma.Kuti ikurumidze kutonhora, plastiki ichangobva kuumbwa inogamuchira bhati remvura rakavharwa.Panyaya yemapurasitiki epurasitiki extrusions, inotonhorera mipumburu inotsiva bhati remvura.
Nguva yekutumira: Oct-25-2021
