Muaj tsib qho teeb meem loj uas yuav tsum tau muab sau tseg thaum uas molding cov qhov koob molded tshooj. Thov kos!

Vim tias lub teeb siab loj ntawm cov khoom yas, nws yog qhov tsis pom zoo tias qhov zoo ntawm cov khoom yas yuav tsum yog nruj thiab yuav tsum tsis muaj cov cim, cov qhov cua, thiab kev ntxuav hniav dawb. Hnyav npau taws, tsaus nti, xim tsis zoo, pluag gloss thiab lwm yam teeb meem, thiab yog li raw khoom thiab khoom thoob plaws hauv kev txhaj tshuaj molding.

Qhov tsim ntawm cov pwm thiab cov khoom tseem ceeb yuav tsum ua tib zoo saib xyuas thiab muab tso tawm kom nruj heev lossis tseem ceeb tshwj xeeb. Thib ob, vim tias cov hnab yas uas muaj lub siab tshaj plaws ntawm cov melting point thiab txom nyem flowability, thiaj li ua kom cov nplaim siab zoo, cov kev hloov zoo dua yog ua rau cov txheej txheem tsis zoo xws li tshuab qhov siab kub, kev txhaj tshuaj, kev txhaj tshuaj, tias cov tshuaj molding plastics yuav puv nrog pwm, tab sis tsis yog kev ntxhov siab sab hauv ua rau deformation thiab tawg ntawm qhov khoom.

Ntawm no yog qee yam uas yuav tsum tau nco txog kev npaj cov khoom, cov khoom siv thiab cov txheej txheem pwm, kev txhaj tshuaj molding, thiab cov ntaub ntawv raw khoom ntawm cov khoom.

Raw cov khoom siv thiab ziab khaub ncaws

Vim yog muaj tej yam khoom tsis zoo hauv lub hnab yas, nws yuav cuam tshuam rau cov khoom ntawm qhov khoom, thiab yog li ntawd cia thiab tsheb thauj mus los. Thaum txoj kev pub mis nyuj, peb yuav tsum xyuam xim kom muab khi ua ke kom paub meej tias raw cov ntaub ntawv raw.

Nyob rau hauv kev, dej yog muaj nyob rau hauv cov ntaub ntawv raw, thiab raw cov ntaub ntawv yog deteriorated thaum rhuab. Yog li, cov ntaub ntawv raw yuav tsum tau qhuav thiab lub raj qhwv qhuav yuav tsum tau siv rau kev pub mis. Nws tseem ceeb heev uas yuav tsum nco ntsoov tias thaum txoj kev ziab tshav kub, cov pa taws yuav tsum tau lim dej kom zoo thiab dehumidified kom paub meej tias nws tsis paug cov khoom.

Ntxuav ntawm tej kas tham, ntsia hlau thiab accessories

Yuav kom tiv thaiv tau cov kabmob ntawm cov ntaub ntawv raw thiab lub neej ntawm cov khoom qub los yog cov khoom tsis muaj nyob rau hauv lub recesses ntawm lub hau thiab cov accessories, muaj tshwj xeeb resins nrog pluag thermal stability. Yog li, tus neeg tu lub cev yuav tsum tau siv los ntxuav tag nrho txhua qhov chaw ua ntej siv thiab tom qab kaw tawm los tiv thaiv kom txhob raug cov kab mob tsis huv. Thaum tsis muaj tus neeg tu lub cev, tus ntsia hlau yuav tsum muab ntxuav nrog cov resins xws li PE thiab PS.

Thaum kaw ib ntus, yuav kom tsis txhob muaj cov khoom siv raw ntawm lub qhov kub siab ntev ntev, ua rau kev daws teeb meem, qhov kub ntawm lub tshuab ziab khaub ncaws thiab cov thoob yuav tsum tau txo. Piv txwv, qhov kub siab ntawm lub PC, PMMA, thiab lwm yam yuav tsum tau txo kom tsawg dua 160 ° C. (Lub hopper kub yuav tsum qis dua 100 ° C rau PC)

Pwm tsim (nrog rau khoom tsim)

Yuav kom tsis txhob rov qeeb, los sis tsis sib npaug los ntawm plua plav yas uas tsis zoo, ua rau muaj qhov tsis zoo thiab qhov teeb meem, feem ntau ntawm cov qauv tsim, yuav tsum tau mloog zoo rau cov nram qab no:

Lub phab ntsa ntawm qhov yuav tsum ua kom zoo li tsim nyog, thiab cov ntawv yuav tsum loj txaus;

Qhov kev hloov no yuav tsum maj mam. Hloov kev sib txig kom tsis txhob ntse ntse. Ntse npoo, tshwjxeeb cov khoom hauv PC yuav tsum tsis txhob muaj khoob;

Rooj vag. Cov neeg khiav dej yuav tsum dav thiab luv li sai tau, thiab qhov chaw nkaum qhov chaw yuav tsum tau teem raws li qhov kev sib tw ntawm kev sib tw. Yog tias tsim nyog, cov khoom noj txias yuav tsum ntxiv.

Cov pwm ntawm lub puab tsaig yuav tsum tau du, nrog rau cov uas tsis tshua muaj siab (dua li 0.8);

Qhov quav. Lub tank yuav tsum txaus kom paug tawm cua thiab roj cua hauv yaj.

Tsuas yog tus tsiaj, lub phab ntsa yuav tsum tsis txhob thim, feem ntau nws yuav tsum tsis pub tsawg dua 1 hli.

Txhaj tshuaj molding thiab txhaj tshuaj molding tshuab

Yuav kom txo tau cov kev ntxhov siab thiab cov teeb meem ntawm qhov chaw tsis zoo, cov hauv qab no yuav tsum tau muab sau rau hauv kev txhaj tshuaj molding:

Yuav tsum siv cov ntsia thawv tshwj xeeb, txhaj tshuaj molding tshuab nrog cais kev tswj kub tsis muaj cav;

Txhaj kom sov tsis txhob muab tso rau hauv qhov teeb meem ntawm cov yas yas, nws yog qhov zoo tshaj rau siv cov tshuaj qis dua;

Txhaj siab: feem ntau siab mus kov yeej cov teeb meem loj yaj viscosity, tab sis qhov siab yog siab dhau heev lawm yuav ua rau muaj teeb meem hauv lub cev los ntawm kev tsis sib haum thiab deformation;

Kev Txhaj Tshuaj Txhaj Tshuaj: Yog hais tias filling cov pwm, nws yuav tsum qis qis dua, nws yog qhov zoo tshaj plaws los siv qis ntau theem qeeb;

Tuav lub sij hawm thiab molding cycle: hauv qhov khoom sau cov khoom kom tau raws pwm, tsis tas ntsawm, npuas; nws yuav tsum kom luv li sai tau kom txo tau qhov chaw nyob lub sij hawm ntawm yaj nyob rau hauv lub thoob;

Ntsia hlau ceev thiab nraub qaum siab: Hauv qhov tsim nyog ntawm qhov kev zoo siab ntawm kev sib koom ua ke, nws yuav tsum muaj tsawg li sai tau kom tsis txhob muaj kev daws teeb meem.

Pwm sov: Qhov txias ntawm qhov khoom yog qhov zoo los sis qhov phem. Nws muaj feem xyuam rau txoj kev zoo. Yog li no, cov pwm kub kub yuav tsum muaj peev xwm tswj tau cov txheej txheem. Yog tias ua tau, ntsuas kub yuav tsum siab dua.

Lwm yam teeb meem

Vim nws yog ib qho tsim nyog los tiv thaiv qhov kev puas tsuaj ntawm qhov chaw sab nrauv zoo, lub tshuab pwm tso tawm yuav tsum siv tsawg li sai tau thaum lub caij txhaj tshuaj; thaum siv cov ntaub ntawv coj los siv, nws yuav tsum tsis txhob yuav ntau dua 20%.

Ntxiv nrog rau tus tsiaj ntawv, cov khoom yuav tsum muab xa tiav tom qab tshem tawm cov kev nyuab siab, PMMA yuav tsum tau qhuav hauv 70-80 hli cua txias rau 4 xuab moos; Pc yuav tsum nyob rau hauv cov huab cua huv, glycerin. Cov dej khov thiab lwm cov cua sov 110-135 ° C, lub sij hawm yog txiav txim los ntawm cov khoom, qhov siab tshaj plaws xav tau ntau tshaj 10 teev. Tus tsiaj PET yuav tsum tau siv ib txoj hauv kev kom ncav caj dab kom tau cov cuab yeej zoo.