Ngexesha lenkqubo yokukhutshwa kombhobho, igesi idinga ukuphuma kwi-melted. Ukuba ezi gesi azikwazi ukukhupha ngexesha, iziphene ezinjengeepores, amaqamza, kunye nobuthuntu bomphezulu kunokuvela kumphezulu okanye ngaphakathi kweemveliso zombhobho, ezichaphazela kakhulu iipropati zomzimba kunye noomatshini, iipropati zekhemikhali, kunye nombhobho weempawu zombane.
Kukho i-1 ukuya kwi-2 i-vents phakathi kwe-port yokutya kunye nentloko yomatshini ukususa ukufuma kunye nezinye izinto eziguquguqukayo kwizinto ezityhidiweyo ezityhidiweyo. Nangona kunjalo, ezinye izivulo zeesilinda zentsimbi zihlala zivela. Ingxaki eqhelekileyo kukukhutshwa kwezinto ezibonakalayo kwi-exhaust port. Inani elincinci lezinto eziphathekayo liya kuchaphazela ukukhutshwa kwezinto eziguqukayo kunye nokuchaphazela umgangatho wemveliso; isixa esikhulu semathiriyeli siya kuthintela izibuko lokukhupha kwaye nokuba kubangele ixesha lokuphumla.
Ngokuqhelekileyo, kukho izizathu ezibini zokondla umbhobho we-extruder. Olunye luyilo olungenangqiqo lwe-screw, olubangela ukuba izinto zibuyele umva kwi-exhaust port; enye luyilo olumxinwa lwezibuko lokukhupha. Izinto ezityhidiweyo "zixhonywe" xa zidlula kwi-port yokukhupha.

Umgca wokukhutshwa kombhobho othathiweyo we-DWC

Okokuqala, unokubona ukuba i-material ekwi-screw ibuyela umva kwi-vent. Kwii-extruders ezininzi ezikhupha umoya, unokuyibona inyibilika isiya phambili kwisikrufu. Kwiimeko eziqhelekileyo, iqondo lokuzaliswa kwe-screw groove ngezinto eziphathekayo alidluli i-50%. Ukuba idlula, iya kuchaphazela umphumo wokukhupha kwaye ibangele ukuba ingubo ibonakale kwi-port yokukhupha; xa ingaphantsi kwe-50%, isikrufu sinokusebenza ngokuqhelekileyo. Izinto ezimbi zinokubangela ukuyilwa ngokungekho ngqiqweni kwe-exhaust port okanye icandelo le-shunt.

Izinto ezichaphazela ukuPhepha kweMpahla ye-Pipe Extruder kunye nezisombululo

1. Screw factor
Exhaust screw ikakhulu yamkela uyilo lwamanqanaba amaninzi. Inzuzo yolu yilo kukuba i-port yokukhupha iphantsi koxinzelelo oluqhelekileyo, kwaye izinto eziphathekayo aziyi kuphuma. I-extruder ene-vent enye ifuna isikrufu esinamanqanaba ama-2, kunye neendawo zokuphuma ezimbini zifuna isikrufu esinenqanaba eli-3. Inqanaba ngalinye linecandelo loxinzelelo oluphakathi, icandelo loxinzelelo, kunye necandelo lokulinganisa. Isigaba sokuqala senqanaba lokuqala licandelo eliqhelekileyo lokutya koxinzelelo, kwaye isigaba sesibini sisigaba esiqhelekileyo sokukhupha uxinzelelo, apho i-port exhaust ikhona.
Ngoyilo lwe-screw ye-extruder ephumayo, kukho iingxaki ezimbini: xa izinto eziphathekayo zifikelela kwicandelo le-vent, impahla kufuneka inyibilike ngokupheleleyo ukukhupha i-volatiles; okwesibini, isixa sokutya isikrufu senqanaba lesibini kufuneka sibaluleke ngakumbi kuneso sikrufu senqanaba lokuqala ukwenza I-groove screw ekuqaleni kwenqanaba lesibini aligqibekanga, ukuze indawo yokuphuma yomoya ikwazi ukugcina uxinzelelo oluqhelekileyo.
Xa izinga lokutya kwe-screw yenqanaba lokuqala libaluleke ngakumbi kuneso lesigaba sesibini se-screw, ukunyibilika kwi-extruder kuya kubuyela umva. Ukusombulula le ngxaki, kuyimfuneko ukunciphisa inani lokutya kwinqanaba lokuqala okanye ukwandisa inani lokutya kwesigaba sesibini.

2. Iimeko zenkqubo
Indlela ekhawulezayo nelula yokusombulula ingxaki kukutshintsha iimeko zenkqubo. Umzekelo, ndinyusa ukukhuhlana kunye noxinzelelo lokucheba kunye necylinder yentsimbi okanye isikrufu kwaye ndinyusa ukukhuhlana okanye i-viscosity ecaleni komphezulu wesilinda yentsimbi ukuphucula umthamo wokuhanjiswa.

3. Ukukhupha izibuko
Ukuba i-screw kwi-exhaust port igcwaliswe ngokuyinxenye kwaye i-exhaust port isetyisa imathiriyeli, kukho ingxaki ethile ngoyilo lwezibuko lokukhupha. Izibuko zokukhupha kufuneka zibe banzi kunomlambo oqengqelekayo ukuqinisekisa ukuba inyibilika ayivaleli izibuko lokukhupha. Ngexesha elifanayo, ukuvulwa kwe-port yokukhupha akufanele kube kukhulu kakhulu, okunokunciphisa ixesha lokuhlala lokunyibilika kunye nexesha lokwandiswa kokuhamba kwezinto.
Njengomenzi we-extruder wombhobho, amava kaJinwei kukuba: Ingaba i-screw ephumayo iphuma kwizinto ezihambelana ngokuthe ngqo nenkqubo yokukhupha, ukusebenza kweplastiki, kunye noyilo lwe-screw kunye ne-vent. Ngoko ke, umenzi usebenzisa i-extruder ephumayo. Xa ushiya umatshini wokuvelisa kunye nokusetyenzwa, kuyimfuneko ukuqonda itekhnoloji yokucubungula, iimpawu ze-resin, kunye nokusebenza kwesixhobo ukwenza i-extruder ephumayo ihlala isebenza kwaye izinzileyo.