Ib, Cov nyhuv ntawm qhov kub thiab txias ntawm Flowability ntawm Plastics
1. Kub thiab khoom ntawm cov yas yaj
Kub yog ib qho tseem ceeb ntawm kev tswj cov khoom ntawm cov yas yaj. Thaum lub sij hawm txhaj tshuaj molding txheej txheem, cov khoom yas yog rhuab mus rau lub xeev molten thiab ces txhaj rau hauv pwm los ntawm lub nozzle. Cov khoom sib txawv ntawm cov yas muaj cov ntsiab lus sib txawv thiab qhov sib txawv ntawm qhov kub thiab txias, yog li ntawd, qhov ntsuas kub yuav tsum tau hloov kho raws li hom yas siv. Qhov kub ntau dhau tuaj yeem ua rau cov yas kom sov thiab tuaj yeem ua rau decomposition, thaum qhov kub thiab txias tuaj yeem ua rau nws nyuaj rau cov yas ntws thiab cuam tshuam rau kev ua haujlwm ntawm cov pwm filling.
2. Kub thiab fluidity
Qhov kub thiab txias muaj qhov cuam tshuam loj rau qhov fluidity ntawm plastics. Kev kub siab dua yuav ua rau cov yas molten dej ntau dua, uas muaj txiaj ntsig zoo rau kev sau cov pwm thiab txo cov teeb meem xws li tsis zoo filling, npuas, thiab cov khoom siv luv luv. Txawm li cas los xij, qhov kub thiab txias tuaj yeem ua rau cov yas ntau dhau, ua rau muaj kev pheej hmoo ntawm deformation ntawm cov khoom molded. Ntawm qhov tod tes, qhov ntsuas kub qis tuaj yeem ua rau cov viscosity ntawm cov yas, ua rau nws nyuaj rau sau cov pwm, uas tuaj yeem ua rau cov xwm txheej tsis zoo lossis tsis zoo. Yog li ntawd, nrhiav kom tau qhov ntsuas kub uas tsim nyog yog qhov tseem ceeb los xyuas kom meej tias cov yas muaj qhov tsim nyog fluidity thaum lub sij hawm molding txheej txheem.
2, Kev cuam tshuam ntawm qhov kub thiab txias ntawm pwm
1. Kev tswj qhov kub thiab txias pwm
Kev tswj pwm kub yog qhov tseem ceeb rau kev ua tiav ntawm kev txhaj tshuaj molding. Pwm feem ntau yog ua los ntawm cov hlau thiab khaws cia ntawm qhov kub thiab txias los ntawm cua sov thiab cua txias. Kev kub siab lossis qis qis tuaj yeem muaj kev cuam tshuam tsis zoo rau pwm. Qhov kub ntau dhau tuaj yeem ua rau muaj kev hnav ntau dua, kev ntxhov siab thermal, thiab nthuav dav ntawm cov pwm, thiab tuaj yeem ua rau pwm tsis ua haujlwm ib nrab. Ntawm qhov tsis sib xws, qhov kub thiab txias dhau tuaj yeem txo qhov fluidity ntawm cov yas, ua rau cov khoom tsis zoo thiab cov pwm tsis tiav.
2. Pwm nto kub thiab tiav cov khoom zoo
Lub uniformity ntawm pwm saum npoo kub yog qhov tseem ceeb rau qhov zoo ntawm cov khoom tiav. Qhov kub tsis sib xws yuav ua rau muaj qhov tsis xws luag xws li cov cim, npuas, lossis cov pob dawb ntawm cov khoom tiav. Yog li ntawd, nws yog ib qho tsim nyog los xyuas kom meej qhov ntsuas kub tsis sib xws ntawm cov pwm kom ua tiav cov khoom tiav zoo ib yam. Kev tswj qhov kub thiab txias tuaj yeem daws qhov teeb meem no los ntawm kev tswj cov pwm kub kom raug, kom ntseeg tau tias cov pwm saum npoo yog nyob rau hauv qhov tsim nyog kub.
3, Optimization thiab tswj qhov kub thiab txias
1. Kev xaiv qhov ntsuas kub
Kev xaiv ntawm qhov ntsuas kub yuav tsum tau txiav txim siab raws li cov khoom siv tshuaj molding tshwj xeeb thiab cov kev cai molding. Feem ntau, qhov ntsuas kub tsis cuam tshuam nrog kev txhaj tshuaj molding muaj xws li:
Melt kub: Tswj lub melting kub ntawm cov yas, feem ntau yog teem rau saum cov yas melting point uas tsim nyog.
Pwm kub: xyuas kom meej qhov sib txawv ntawm pwm qhov kub thiab txias, feem ntau yuav tsum tau preheating ua ntej molding.
Lub sijhawm txias: Tswj lub sijhawm txias thiab kho lub sijhawm ntawm cov khoom pwm hauv pwm.
Kev txhaj tshuaj nrawm: cuam tshuam qhov ceev thiab siab ntawm cov yas ntim pwm.
2 Kub tswj qhov system
Txhawm rau kom ua tiav qhov ntsuas kub zoo, cov cuab yeej txhaj tshuaj molding feem ntau yog nruab nrog qhov ntsuas kub. Cov tshuab no tuaj yeem saib xyuas thiab kho qhov kub thiab txias kom ntseeg tau tias qhov kub thiab txias tau khaws cia thoob plaws tag nrho cov txheej txheem molding. Niaj hnub nimno kub tswj tshuab feem ntau siv cov thev naus laus zis los muab cov neeg raug siab dua thiab kho tau.
3. Kub thiab hluav taws xob txuag
Lub zog efficiency yog qhov tseem ceeb hauv kev txhaj tshuaj molding txheej txheem. Qhov kub ntau dhau yuav ua rau muaj hluav taws xob pov tseg vim xav tau lub zog ntau ntxiv los tswj lub xeev kub. Yog li ntawd, optimizing kub tsis tau tsuas yog txhim kho molding zoo, tab sis kuj txo cov nqi thiab lub zog noj.
Kub ua lub luag haujlwm tseem ceeb hauv kev txhaj tshuaj molding, cuam tshuam rau cov yas fluidity, pwm, thiab cov khoom tiav tiav. Los ntawm kev xaiv thiab tswj qhov ntsuas kub kom raug, cov txheej txheem zoo, ua haujlwm tau zoo, thiab tus nqi qis qis tuaj yeem ua tiav. Yog li ntawd, cov tuam ntxhab thiab cov neeg ua haujlwm yuav tsum nkag siab txog qhov cuam tshuam ntawm qhov kub thiab nqis peev hauv cov cuab yeej ntsuas kub niaj hnub kom ua tiav qhov zoo tshaj plaws txhaj tshuaj molding.
