Txheej txheem cej luam
Cov txheej txheem extrusion muab qhov zoo ntawm kev ua tiav ntau yam yas ua cov txheej txheem unsurpassed hauv kev lag luam tseem ceeb los ntawm lwm cov txheej txheem. Thoob ntiaj teb, cov kab extruder yog cov hloov pauv loj tshaj plaws ntawm cov yas thiab tuaj yeem suav tias yog cov tshuab tsim khoom tseem ceeb tshaj plaws hauv kev lag luam yas.
EXTRUDER HOM thiab kev tsim kho
Muaj ntau ntau hom extruder uas tau tsim los tsim ntau yam yas thiab cov khoom. Qhov dav siv yog ib leeg-ntsia hlau extruders thiab ntxaib-ntsia hlau extruders.
1.1 Extruder nrog tapered twin-screws
1.2 Extruder nrog ib tus ntsia hlau
Hauv kev xaiv qhov loj ntawm extruder thiab nws txoj kev tsav tsheb, cov kev txiav txim siab yuav tsum tau soj ntsuam suav nrog:
Qhov ntau ntawm cov ntsia hlau ceev ntsia hlau erations yuav tsum tau soj ntsuam muaj xws li:
(1) qhov ntau ntawm cov ntsia hlau ceev ceev xav tau;
(2) qhov yuav tsum tau ua kom ceev ceev yuav tsum muaj qhov sib txawv infinitely, thiab tej zaum yuav xav tau qee qib ceev lossis ntau yam;
(3) lub zog siab tshaj plaws yuav tsum tau los ntawm kev tsav tsheb raws li cov yas yuav tsum tau ua tiav;
(4) kev sib raug zoo ntawm cov ntsia hlau ceev thiab lub zog ntawm cov ntsia hlau ncej;
(5) seb lub tshuab yuav siv rau ib leeg lossis ntau yam khoom. Cov tsav tsheb muaj xws li lub cev muaj zog lossis siv txoj siv sia, uas txuas nrog cov ntsia hlau los ntawm cov tshuab xws li ob chav txo gearboxes.Belt drives yog siv rau cov tshuab me me. Cov tsav tsheb yooj yim rau kev hloov pauv ntawm lub cev muaj zog nrawm rau hauv qis dua thiab siab torque yuav tsum tau ua haujlwm thiab tswj cov screws.
EXTRUDER kev ua haujlwm
Lub tshuab ua haujlwm tuaj yeem ua rau peb theem. Thawj theem yuav tsum tau ua haujlwm ntawm extruder rau kev sov so nrog kev ua haujlwm ntawm cov khoom siv hluav taws xob nce thiab nqis. Cov theem tom ntej no suav nrog kev teeb tsa cov txheej txheem ua tiav kom tau raws li cov khoom xav tau ntawm tus nqi qis tshaj. Cov theem kawg yog mob siab rau kev kho kom zoo thiab daws teeb meem kom tiav kab. Kev ua haujlwm tau zoo yuav tsum tau ua tib zoo mloog rau ntau cov ntsiab lus, xws li cov yaj zoo, qhov kub thiab txias profile txaus kom yaj tab sis tsis degrade cov yas, ntau lawm ntawm qhov tsawg kawg nkaus ntawm seem, thiab cov txheej txheem rau kev pib thiab kaw uas yuav tsis ( los yog minimize)
degrade cov yas. Daim duab 1.8 qhia cov piv txwv ntawm qhov kub thiab txias
profiles rau cov yas sib txawv.
PROCESSING PLASTIC
Ib qho extruder yog kev sib xyaw ntawm cov ntsia hlau conveyor thiab compressor. Raws li ib tug conveyor, nws mechanical ua raws li 'screwing' nws tus kheej rov qab. Txij li cov ntsia hlau nws tus kheej nyob hauv ib qho chaw, cov yas ua qhov txav thiab raug yuam tawm los ntawm qhov tuag. Txij li cov yas yog nkig thiab txhim kho kev sib txhuam kom ntws, lub zog yuav tsum tig lub hau ntswj. Raws li lub compressor, cov ntsia hlau txav cov khoom yas (pellets, thiab lwm yam) pib thiab maj mam cov yas yaj. Nyob rau hauv cov khoom theem, nws yog denser, tshwj xeeb tshaj yog cov yas crystalline; nrog rau cov yas cua qhov chaw muaj nyob nrog rau qhov uas lawv muaj ib tug tsawg bulk ntom (qhov hnyav ib ntim). Cov ntsia hlau compresses cov khoom yas ua ke. Nrog rau qhov kev txiav txim siab no, huab cua feem ntau siv txoj hauv kev tsawg kawg ntawm kev tiv thaiv thiab raug thawb rov qab tawm ntawm qhov qhib pub. Yog tias muaj huab cua nyob hauv cov yaj, nws tuaj yeem tso tawm thaum lub yaj tawm ntawm qhov tuag tsis muaj kev puas tsuaj rau cov khoom lossis nws yuav nyob hauv cov khoom raws li kev sib kis.
EXTRUDER cua sov thiab cua txias PROFILE
Piv txwv ntawm melt kub hauv ib qho extruder
Thaum tshav kub kub kom soften cov yas yog muab nyob rau hauv ob txoj kev: los ntawm sab nraud chim cua sov thiab sab hauv frictional rog coj los ntawm cov yas vim qhov kev txiav txim ntawm cov hlau ntsia hlau nyob rau hauv lub hlau chim. Tus nqi ntawm cov khoom siv hluav taws xob zoo li no tau txais txiaj ntsig zoo. Hauv ntau qhov kev ua haujlwm extrusion nws sawv cev rau feem ntau ntawm tag nrho cov cua sov nkag rau cov yas. Hluav taws xob, kua dej xws li chav, lossis roj kub tuaj yeem siv tau. Hluav taws xob cua sov feem ntau nyiam vim nws yog qhov yooj yim tshaj plaws, teb sai tshaj plaws, yooj yim los kho, yooj yim los ntxuav, yuav tsum muaj kev saib xyuas yam tsawg kawg nkaus, npog qhov kub thiab txias ntau dua, thiab feem ntau yog qhov tsawg tshaj plaws ntawm kev nqis peev thawj zaug.
AUXILIARY EQUIPMENT
Down-kem ntawm cov tuag sib txawv ntawm cov khoom siv nqa tawm yog siv los ua kom tau raws li cov khoom siv sib txawv. Lawv suav nrog cov khoom sib tw, lub tank txias, cov khoom siv coiling, kab ceev tswj (mechanical, hluav taws xob, thiab / lossis sonic), kev tswj nruj (capstans, thiab lwm yam), rub cov cuab yeej (kab ntsig, pinch yob, rov qab siv txoj siv sia, thiab lwm yam), cutters nyob rau hauv-kab, sau cov khoom (troughs, tanks, stackers, thiab lwm yam), postforming, ceev takeoff yob, thiab hais txog.
KEV SIB HLUB
Daim duab 1.3 Piv txwv ntawm lub zog poob los ntawm extruder
Thaum kuaj xyuas lub zog siv los yog poob, cov cuab yeej siv los ua tiav cov kab ntau lawm nrog rau cov yas koom nrog.Nws muaj kev siv zog txuas ntxiv los ntawm peb lub tshuab POLYTECH Plantic Machinery, kom txo tau lub zog noj raws li lub zog poob. Daim duab 1.3 yog
piv txwv ntawm qhov twg lub zog / kub poob los ntawm extruder tshwm sim.
Nyob rau hauv kev sib piv nrog rau lwm yam ntaub ntawv, plastics muaj qhov tsawg tshaj plaws tshwj xeeb zog yuav tsum tau rau lawv siv (Fig. 1.4), fabricating cov khoom, thiab tsawg tshaj plaws recycling zog noj. Kev txuag hluav taws xob tuaj yeem txiav txim siab hauv extrusion nrog rau tag nrho cov kev lag luam yas los ntawm ntau qhov kev xav uas mus los ntawm kev tsim cov yas rau kev ua rau cov khoom siv rov ua dua tshiab. Hauv kev ua txhua yam kev ntsuam xyuas, kev siv cov yas txuag lossis txo cov kev xav tau ntawm lub zog. Hauv tsheb, dav hlau, thiab lwm yam kev thauj mus los, kev siv cov yas ntau ntxiv txo qhov hnyav thiab roj noj; ib qho piv txwv yog hloov lub me me whiskey
Lub raj mis nyob rau hauv dav hlau nrog extruded tshuab molded yas fwj ntau dua li iav, ua rau muaj roj ntau txuag. Kev siv cov yas hauv kev tsim kho txuag hluav taws xob los ntawm kev rwb thaiv tsev. Tsis tas li ntawd, tsuas yog xa cov khoom hnyav dua cov khoom yas txuag lub zog.
Daim duab 1.4 Lub zog xav tau rau cov khoom sib txawv.
QHOV TSEEB NTAWM EXTRUSION PROCESS
Txij thaum pib no, kev nce qib hauv cov yas tau ua raws li kev nce qib hauv cov khoom siv extrusion. Nrog rau tag nrho cov kev nqis tes no, peb Polytech yas machinaery co., Ltd tau ua haujlwm ntau hauv rheology thiab thermodynamics kom nkag siab zoo dua cov txheej txheem ntawm extruding plastics thiab lwm yam ntaub ntawv. Cov txiaj ntsig tau txuas ntxiv nce cov nqi tsim khoom, nce tus nqi ntawm kev tswj hwm ntawm extrusion variables, thiab / lossis txo cov nqi. Cov kev loj hlob tseem ceeb tseem nyob rau hauv kev kho kom zoo ntawm cov txheej txheem extrusion uas twb muaj lawm.