Inkqubo yokubumba i-injection yezinto zePVC

Izinto zePVC azibizi, zichasene nokudumba, zilukhuni kwaye zinamandla, ukumelana nemichiza elungileyo, izinga lokucutheka kwe-0.2-0.6%, iimveliso zisetyenziswa kakhulu kwizixhobo zombane, oomatshini, ulwakhiwo, iimfuno zemihla ngemihla, iithoyi, ukupakishwa, ngenxa yeempawu zombane. Izinto zePVC, uhlalutyo lwenkqubo yokubumba inaliti yemveliso ngolu hlobo lulandelayo:

一、 Iipropati zezinto zePVC

PVC uzinzo thermal lihlwempu, ubushushu ukubumba kunye nobushushu ukubola ikufutshane, ukuhamba amahlwempu, inkangeleko lula ukwenza iziphene ezimbi, PVC ukumelana nobushushu impahla ayilunganga, eyona ilula ukutshisa, igesi acidic kunye umhlwa ngundo, processing. inokongeza i-plasticizer ukunyusa umbane wayo, - ngokubanzi kufuneka idibanise izongezelelo zokusetyenziswa, amandla ayo, ukugquma kombane, ukuxhathisa okulungileyo kweekhemikhali.

二、Uyilo lokungunda kunye nesango

Ukuze unciphise umjikelo wokutofa, i-port ye-injection imfutshane ingcono, i-cross-section kufuneka ibe yigadi, ubuncinane be-injection port yi-6 mm, kwi-cone yegadi, i-angle yangaphakathi ye-5 degrees, ngokukodwa. ngamaqula abandayo, amaqula abandayo anokuthintela izinto ezinganyibilikisiweyo ezinganyibilikiyo kakuhle kumgodi, kwaye ezi zinto ziya kuchaphazela ukugqitywa komphezulu kunye namandla emveliso.

I-die slope kufuneka ibe phakathi kwe-0.50 kunye ne-10 ukuqinisekisa ukuba umngxuma unezixhobo ezaneleyo zokukhupha umoya.Ubungakanani obuqhelekileyo bomngxuma wokukhupha umoya yi-0.03-0.05mm ubunzulu kunye ne-6mm ububanzi, okanye i-0.03-0.05mm imvume ejikeleze isikhonkwane se-ejector nganye.Idayi kufuneka yenziwe ngentsimbi engatyiwayo okanye ngechrome eqinileyo.

三, inkqubo yokubumba iPVC

I-PVC yiplastiki evakalelwa bubushushu.Ukugqithisa okanye ukucheba ngokugqithiseleyo kuya kubangela ukubola kunye nokusasazeka ngokukhawuleza, ngenxa yokuba enye yeemveliso zokubola (ezifana ne-asidi okanye i-HCI) iya kuba nefuthe le-catalytic, okubangelwa ukubola okuqhubekayo kwenkqubo, kwaye i-asidi iya kutshabalalisa isinyithi kwaye iguqule.Ukuba i-dented, umaleko wokukhusela wesinyithi uya kukhupha, ubangele i-rust, eyingozi kakhulu kumzimba womntu.Ubude obuqhelekileyo be-screw-diameter ratio yi-18 ~ 24: 1, umlinganiselo wezigaba ezintathu ngu-3: 5: 2, kunye ne-compression ratio yi-1.8 ~ 2.Ubunzulu be-screw groove kwicandelo lokutyisa bucetyiswa ngolu hlobo lulandelayo:

Isantya sokutofa kufuneka sicothe, kungenjalo ukucheba okugqithisileyo kuya kuthoba isidima semathiriyeli.Xa usebenzisa i-UPVC ukuvelisa iimveliso ezinodonga olutyebileyo olugudileyo, isantya sokutofa esinamanqanaba amaninzi kufuneka sisetyenziswe.Ukuba imigca emdaka ekhanyayo iphuma esangweni, oko kuthetha ukuba isantya sokutofa siphezulu kakhulu.ngokukhawuleza.

Incam ye-screw kufuneka ibe ne-angle yangaphakathi ye-25 ~ 30 degrees.Xa i-screw isendaweni, umgama phakathi kwencam kunye nombhobho kufuneka ube ngu-0.7 ~ 1.8mm.Isikrufu kufuneka senziwe ngentsimbi engenasici okanye i-chrome-plated.

1)I-Screw gasket: I-screw gasket iphakathi kwe-2 ~ 3mm, kwaye ithuba elikhulu likhulu.

2)Umthamo wokutofa: Ixesha lokuhlala langempela akufanele lidlule imizuzu emi-3.

3) Ukusetwa kobushushu bomphanda:

Amaqondo obushushu abonelelweyo ngawokubhekisela kuphela, kwaye uhlengahlengiso olufanelekileyo lwenziwa ngokweemeko zokwenene zomatshini kunye nezinto ezikrwada, ezinokuphinda zidlule uluhlu olucetyiswayo.

Ubushushu becandelo lokutyisa eliphakathi kwicandelo langaphambili lombhobho wokungunda (0C) 30-60 170-190 160-180 150-170

Umthamo wokutofa osetyenziselwa i-140-160 yi-20 ~ 85% yomthamo we-injection yethiyori yomatshini.Okukhona umncinci umthamo wenaliti osetyenzisiweyo, kokukhona ixesha lokugcinwa kwemathiriyeli lide kwaye mkhulu umngcipheko wokuwohloka emva kokufudumeza.cin.com

4) Ixesha lokuhlala emgqonyeni:

Ngaphantsi kolawulo lokushisa kwe-2000C (izinto zerabha), ixesha elide lokuhlala lombhobho lingadlula imizuzu emi-5, xa izinga lokushisa liyi-2100C.

5) Isantya sokutofa:

Isantya sokutofa kufuneka sicothe, kungenjalo, izinto ziya kuthotywa ngenxa yokucheba okugqithisileyo.Isantya sokutofa esinamanqanaba amaninzi kufuneka sisetyenziswe xa usebenzisa i-UPVC ukuvelisa iimveliso zodonga ezigudileyo.Ukuba kukho imigca emdaka ekhanyayo ephuma esangweni, oko kuthetha ukuba isantya sokutofa siphezulu kakhulu.ngokukhawuleza.