Tam sim no, lub extruder siv nyob rau hauv lub extruded cable kev lag luam yog tsuas yog ib tug ib leeg-ntsia hlau extruder, uas yog thawj extruder yuav siv dav. Vim nws cov qauv yooj yim thiab kev ua haujlwm siab, nws tau siv dav hauv kev ua cov yas thiab molding. Lub molding ntau yam ntawm ib leeg-ntsia hlau extruder Nws' s dav thiab yoog mus rau ntau qhov chaw. Thiab vim hais tias ib leeg-ntsia hlau extruder nyob hauv ib qho chaw me me, nws yuav luag dhau los ua cov khoom siv nkaus xwb hauv kev ua cov khoom sib xyaw thiab cov tshuab tshuab. Ib leeg-ntsia hlau extruder tshuab tau dhau los ua ib feem tseem ceeb ntawm kev ua lag luam extrusion uas tsis tuaj yeem tsis quav ntsej. Tam sim no, ib leeg-ntsia hlau extruders siv lub hom phiaj dav dav. Feem ntau, cov ntsia hlau tuaj yeem muab faib ua hom zoo tib yam, hom maj mam, hom hloov pauv, hom sib xyaw, hom sib cais, thiab sib cais ntws. Hom thiab ntau yam barrier hom, tus pin hom, DIS split-flow hom thiab tso hom, thiab lwm yam .; Tus naj npawb ntawm cov ntsia hlau taub hau tuaj yeem yog ib lub taub hau lossis lub taub hau hloov pauv, thiab lwm yam. Feem ntau, cov hom phiaj dav dav tsis zoo li cov ntsia hlau tshwj xeeb hauv cov ntsiab lus ntawm plasticization thiab kev siv hluav taws xob rau qee hom yas. Kuj tseem muaj qhov ntxaib-ntsia hlau extruder uas suav nrog cov sib npaug ntxaib-ntsia hlau extruders thiab conical ntxaib-ntsia hlau extruders. Parallel ntxaib-ntsia hlau extruders tau muab faib ua tib qho kev taw qhia thiab cov kev coj rov qab. Nyob rau hauv xyoo tas los no, nrog rau kev loj hlob sai ntawm cov khoom siv hluav taws xob hauv tsev, kev sib txuas lus, tsheb thiab lwm yam kev lag luam, kev lag luam xav tau rau kev hloov kho cov khoom siv thiab kev sib xyaw ua ke tau zoo heev. Vim tias qhov tso zis ntau ntawm cov ntxaib-ntsia hlau extruder, kev sib xyaw ua haujlwm zoo dua li cov pa ib leeg-ntsia hlau extruder, thiab cov qauv qauv feem ntau yog siv los kho cov khoom sib txawv, yog li nws tau maj mam dhau los ua lub zog tseem ceeb hauv kev lag luam. extrusion ua lag luam.
Thaum lub sij hawm cov txheej txheem yas extrusion, cov ntsia hlau plays lub luag hauj lwm ntawm softening, compacting thiab tshem tawm cov huab cua ntau dhau los xa cov roj hmab mus rau lub tshuab taub hau.
Kev pub mis: Cov yas granular nkag mus rau hauv lub thoob ntsia hlau los ntawm lub hopper. Vim yog qhov kev sib hloov ntawm qhov poob siab, txaus thrust thiab thim rov qab kev sib txhuam yog generated, tsim ib tug ruaj khov siab, sib tov cov roj hmab, ua ntej cua sov, thiab softening cov yas mus rau lub compression seem.
Compression seem: Vim qhov kub ntawm qhov seem no, cov yas preheated pib ua plasticized thiab compacted, thiab thaum kawg hloov los ntawm cov khoom yas mus rau molten yas. Vim yog kev sib hloov ntawm cov ntsia hlau, cov yas txuas ntxiv sib xyaw thiab nplawm kom ua tiav qhov ua ntej plasticization thiab ua ntej compression Reality.
Melting seem (siab sib npaug zos): nyob rau hauv qhov kev txiav txim ntawm cov ntsia hlau rotation thrust, lub xub compacted yas yog thawb mus rau hauv lub equalization seem. Ntu no muaj cov kuab tshuaj tsawg tshaj plaws nyob rau hauv qhov zawj, uas ua rau lub siab ntau dua thiab qhov kub siab tshaj plaws. , Plastics yog ntau uniformly plasticized nyob rau hauv qhov kub thiab txias. Nyob rau hauv lub thrust ntawm kev poob siab, lub isobaric thiab quantitative raug thawb rau hauv lub tshuab taub hau thiab extruded los ntawm cov tuag.
Yog vim li cas rau ntsia hlau tsim
Qhov tseem ceeb ntawm tus pin ntsia hlau yog cov ntsia hlau zoo tib yam, tus pin tuaj yeem muab tso rau hauv seem melting ntawm cov ntsia hlau los yog qhov poob ntawm cov metering seem los yog cov cylindrical du nto yam tsis muaj cov ntsia hlau grooves ntawm qhov kawg ntawm cov metering seem. Cov pins tau teem rau hauv ib qho kev npaj, nrog rau qhov sib txawv ntawm qhov ceev thiab qhov ntau. Lub cylindrical tus pin yog tsim los ntawm kev sib sau tus pin rau hauv lub qhov ntawm cov ntsia hlau pas nrig; lub square lossis pob zeb diamond-puab tus pin yog tsim los ntawm milling tus pin ncaj qha rau ntawm tus ntsia hlau pas nrig. Yog tias cov pins no tau teeb tsa hauv thaj tsam melting, cov pins tuaj yeem tawg lub txaj khoom, cuam tshuam rau ob-theem ntws, do cov khoom thiab cov theem ua kua ua ke, ua rau thaj chaw sib cuag ntawm cov khoom tsis sib haum xeeb thiab cov khoom muaj, thiab txhawb nqa. Melting. Yog hais tias tus pin yog teem rau hauv lub melt conveying cheeb tsam, nws lub luag haujlwm tseem ceeb yog faib cov kwj deg, nce lub interface, hloov cov kev taw qhia ntawm cov kwj deg, thiab rov kho cov kwj deg. Sib cais thiab sib koom ua ke ntau zaus, hloov cov kev taw qhia ntws, thiab homogenize cov yaj muaj pes tsawg leeg thiab kub. Qhov sib tov yog ib qho inwardly slotted qauv teeb nyob rau hauv qhov kawg ntawm homogenizing seem ntawm lub zoo tib yam ntsia hlau, thiab nws sab nraud txoj kab uas hla yog sib npaug zos rau sab nraud txoj kab uas hla ntawm cov ntsia hlau. Qhov zawj yog muab faib ua ob peb pawg, thiab ntawm txhua pab pawg yog qhov sib txuam ntawm cov khoom siv. Cov khoom yog muab faib los ntawm qhov zawj, thiab tom qab ntawd sib ntsib hauv thaj chaw confluence, thiab tom qab ntawd faib thiab sib sau ua ke. Lub hauv paus ntsiab lus zoo ib yam li tus pin hom. Cov yam ntxwv ntawm cov ntsia hlau sib cais yog tias ntxiv rau cov qauv ntawm cov ntsia hlau qub (hu ua lub ntsiab ntsia hlau) ntawm cov txheej txheem melting, kuj tseem muaj cov xov ntxiv (hu ua xov ntxiv) uas nws txoj kab uas hla sab nraud yog me ntsis me dua li ntawm txoj kab uas hla. xov tseem ceeb. Cov hmoov txhuas sib txawv, cov xov thib ob pib los ntawm qhov kawg ntawm ntu pub mis (thiab txuas nrog rau ntu pub rau ntawm no), thiab tom qab ob peb threads, nws maj mam sib tshuam nrog cov xov tseem ceeb ntawm seem homogenization. Cov ntsia hlau zawj qhov tob thiab cov xov hlau ntawm cov ntsia hlau zoo li no maj mam hloov ntawm ntu pub rau qhov kawg ntawm homogenization, uas yog, cov xov hlau maj mam nqaim los ntawm qhov dav, thiab qhov tob ntawm cov ntsia hlau groove maj mam dhau los ntawm qhov tob. , kom cov khoom tuaj yeem compressed.
