Lub tshuab txhaj tshuaj molding puas daws qhov teeb meem ntawm cov yeeb nkab yas npuas?

Puas yog kev txhaj tshuaj molding gadget tshem tawm cov teeb meem ntawm cov yeeb nkab yas npuas?
Thaum lub sij hawm extrusion txoj kev ntawm cov kav dej yas, cov saw ntawm cov teeb meem feem ntau ntsib. Nyob rau hauv pem teb ntawm lub hose, zoo ib yam li cov tshwm sim tshwm sim nrog rau cov kab nrib pleb, kab dub, thiab huab kab, peb kuj tuaj yeem hla cov npuas hauv lub hose. Hauv qhov xwm txheej twg yuav muaj npuas hauv lub hose? Cov npuas tshwm sim hauv cov kav dej yas, uas feem ntau tuaj yeem cuam tshuam nrog cov khoom siv noo noo ntawm cov resin thiab additives. Yog tias cov av noo ntau dhau lawm, cov kav dej yas yuav tsim cov npuas thiab tig tawm mus ua ntxeem tau.
Txhawm rau tiv thaiv qhov teeb meem no, siv tiag tiag tswj cov khoom siv dej noo ntawm cov khoom tsis ua noj hauv cov khoom noj uas pheej yig, thiab tswj xyuas cov khoom siv tsis tu ncua ntawm cov khoom tsis noj cov khoom tsis zoo nyob rau hauv ntau yam ntawm {{0}}}.3% Tsawg dua. los yog sib npaug li 0.5%. Thaum sib xyaw cov khoom uas tsis tau ua tiav hauv qhov ntsug txhaj tshuaj molding gadget, cov khoom siv ntau dhau tuaj yeem yooj yim cheb ib feem ntawm dej. Thaum lub sijhawm sib npaug, thaum khaws cov khoom tsis ua tiav, cov paj laum yuav tsum tau them ntxiv rau qhov kev xaiv ntawm qhov chaw stacking, tshwj xeeb tshaj yog nyob rau lub caij ntuj sov, kom tsis txhob ya raws hauv cov khoom tsis noj. Cov ntaub ntub dej PVC tsis tuaj yeem ua rau ib zaug ci nrog hluav taws, nrog rau kev pom rau tam sim no tsis muaj kev cuam tshuam cov khoom sib txuas ntxiv lawm. Yog tias yuav tsum tau ci, ob peb lub stabilizers yuav raug qhia ua ntej. Tom qab qee hnub ntawm qhov chaw nres tsheb hauv lub caij ntub dej, cov tshuaj nplawm ntawm cov pa ntau dhau kuj tuaj yeem qhuav ua ntej siv.
Yog tias npuas tau pom nyob rau hauv lub raj yas ntawm ntsug txhaj tshuaj molding gadget, qhov mildew kub yuav tsum NW nyuam qhuav txo qis thiab lub extrusion pace yuav tsum tam sim no tsis yog sai heev kom tshem tawm cov npuas nyob rau hauv lub raj yas. Kev txuag hluav taws xob ntawm servo lub zog txuag kev txhaj tshuaj molding tshuab tuaj yeem muab faib ua ntu: ib qho yog qhov hluav taws xob, thiab qhov sib txawv yog qhov cua sov. Cov cua sov hauv zej zog txuag hluav taws xob: Feem ntau ntawm cov cua sov hauv zej zog cov tswv yim txuag hluav taws xob siv cov tshuab hluav taws xob hluav taws xob, nrog rau tus nqi txuag hluav taws xob kwv yees li 30% -70% ntawm cov qub style coils. Nyob rau tib lub sijhawm, kev ua kom txias ceev tsis yog ib txwm tsim nyog thoob plaws hauv molding txias, thiab ntawm qhov xwm txheej no, cov kav dej yas kuj raug tsim ua npuas.
Tau kawg, qhov no yog qhov yooj yim tshaj plaws lub hom phiaj rau kev tsim cov npuas thaum extruding yas kav, tab sis tam sim no nws tsis ua tam sim no nrog ntau qhov laj thawj. Qhov no kuj tuaj yeem yog vim tsis muaj qhov tsis zoo los yog qhov tsis zoo hauv cov yaj hauv cov yaj, ua rau cov roj seem hauv cov yeeb nkab yas, yog li qhov xwm txheej txawv yog tshem tawm nws! Thaum cov yas hoses pom cov cim hlawv thiab wrinkles, lub hom phiaj tseem ceeb yog txoj kev extrusion. Cov ntsia hlau txoj kab uas hla ntawm cov yeeb nkab yas extruder yog 45 Tsawg dua los yog sib npaug rau rau caum tsib hli, lub sij hawm rau txoj kab uas hla yog 25, thiab compression piv yog 3 Tsawg dua los yog sib npaug rau 4.
Thaum lub sij hawm extrusion txoj kev ntawm cov kav dej yas, lub extrusion kub ntawm cov yas hoses feem ntau txo qis dua li cov yas nyuaj kav. Yog tias qhov kub hloov pauv ntawm cov kab mob mildew tsuas yog dhau dhau lawm, cov kav dej yas ntawm ntsug txhaj tshuaj molding gadget yuav pom cov cim hlawv; Yog tias qhov kub hloov pauv ntawm ntsug txhaj tshuaj molding gadget lub qhov ncauj pwm tsuas yog qis dhau lawm, tej zaum yuav muaj qhov tshwm sim tsis zoo ntawm qhov ci ntsa iab ntawm sab nrauv ntawm cov yeeb nkab yas.
Yog tias tus nqi ntawm cov ntsia hlau extrusion tsuas yog qeeb heev, hauv pem teb ntawm cov yeeb nkab yas yog raug rau ripples. Yog hais tias tej zaum yuav extrusion pulsation, cov yas yeeb nkab ntawm ntsug txhaj molding gadget yog raug rau xyoob sib koom phenomenon. Yog hais tias cov ntsia hlau nrawm ntawm ntsug txhaj tshuaj molding gadget tsuas yog nrawm heev, kev sib txhuam ntawm cov yeeb nkab yas hauv pem teb thiab cov pwm pwm yuav ua rau cov khoom hauv pem teb kom pom cov cim hlawv. Yog li ntawd, cov ntsia hlau nrawm tuaj yeem txiav txim siab nyob rau hauv ntau yam ntawm 20-40r/min.
Ib yam li ntawd, yog tias qhov traction pace tsuas yog nrawm dhau los yog qeeb dhau, cov yeeb nkab yas ntawm ntsug txhaj tshuaj molding gadget yuav txo qis kab rov tav thiab ntsug, ua rau nws raug rau wrinkles ntawm hauv pem teb. Txhaj tshuaj molding gadget, tseem hu ua txhaj tshuaj molding gadget lossis txhaj tshuaj molding gadget. Nws yog lub hauv paus molding system rau kev siv cov thermoplastic los yog thermosetting yas rau yas molding pwm los muab ntau yam duab ntawm cov khoom yas. Nws tau muab faib ua ntsug, kab rov tav, thiab hluav taws xob tag nrho hom. Kev txhaj tshuaj molding gadget heats cov yas thiab siv ntau qhov kev ntxhov siab rau cov yas molten, inflicting nws tua tawm thiab sau cov kab noj hniav mildew. Yog li ntawd, lub traction pace yuav tsum tau kho nyob rau hauv txoj kab nrog lub cim diameters ntawm cov yas kav. Piv txwv li, rau cov kav dej yas uas muaj txoj kab uas hla ntawm 9- kaum rau hli, cov kab hlau lead tuaj yeem txiav txim siab nyob rau hauv ntau yam ntawm 8-12 m / min; Rau cov kav dej yas uas muaj txoj kab uas hla ntawm 19-25 hli, cov hlau lead cord pace tuaj yeem txiav txim siab nyob rau hauv ntau yam ntawm 4-8m / min.
Thaum extruding yas kav, tshwj xeeb paj yuav tsum tau them rau qhov kub thiab txias ntawm ntsug txhaj molding gadget pwm, tus nqi ntawm extrusion ntsia hlau, thiab traction pace. Tsuas yog nyob rau hauv txoj kev no yog peb muaj peev xwm kom deb ntawm qhov tshwm sim ntawm burnt marks thiab wrinkles nyob rau hauv pem teb ntawm yas kav extruded los ntawm ntsug txhaj molding tshuab.