Qhov laj thawj tseem ceeb ntawm cov pob dub hauv kev hloov xim thiab coking ntawm kev txhaj tshuaj molding khoom

1. Tshuab:
(1) Raws li cov cua sov tswj qhov system tsis muaj kev tswj hwm, cov khoom thoob yog overheated, ua rau decomposition thiab blackening.
(2) Vim yog qhov tsis xws ntawm cov ntsia hlau lossis lub thoob, cov khoom siv molten yog daig thiab khaws cia, thiab nws yog decomposed vim cua sov mus ntev. Xyuas seb cov khoom siv roj hmab lub taub hau puas hnav lossis puas muaj hlau txawv teb chaws hauv.
(3) Qee cov yas, xws li ABS, yog sib txuas thiab coked los ntawm cov cua kub hauv lub thoob, thiab nyuaj rau yaj nyob rau hauv cov xwm txheej ntawm yuav luag tswj cov khoom qub. Lawv tau nkag mus rau hauv qhov chaw tom qab raug crushed los ntawm cov ntsia hlau.
2. Pwm:
(1) Cov pwm tso tawm tsis du, yooj yim rau hlawv, lossis qhov loj ntawm cov txheej txheem nchuav me me, thiab cov shearing hnyav dhau, ua rau coking.
(2) Muaj cov roj lubricants tsis tsim nyog thiab tso tawm cov neeg ua haujlwm hauv pwm.
3. Yas:
Cov yas volatiles ntau dhau lawm, cov av noo ntau dhau, cov impurities ntau dhau, cov khoom siv rov ua dua yog ntau dhau, thiab nws muaj kuab paug.
4. Kev ua haujlwm:
(1) Kev kub siab dhau, kev kub ceev dhau, siab rov qab siab dhau thiab nrawm nrawm nrawm yuav ua rau cov khoom kub decomposition.
(2) Lub thoob yuav tsum tau ntxuav tsis tu ncua kom tshem tawm cov tshuaj ntxiv uas tsis muaj zog dua li cov yas.
Ua rau kev soj ntsuam ntawm delamination
Ua rau thiab teeb meem ntawm delamination ntawm kev txhaj tshuaj molding khoom:
1. Cov khoom siv kub yog qis dhau thiab pwm kub tsis dhau, ua rau muaj qhov tshwm sim ntawm kev ntxhov siab thiab fusion pob qij txha.
2. Kev txhaj tshuaj ceev yog tsawg dhau. Nws yuav tsum tau qeeb kom zoo.
3. Lub siab rov qab qis dhau.
4. Yog tias cov khoom siv raw yog tov nrog impurities, cov impurities yuav tsum tau tshuaj xyuas los yog hloov nrog cov khoom tshiab.
Ua rau kev tsom xam ntawm o thiab blistering
Tom qab molding thiab demoulding, qee qhov yas yuav sai sai no o los yog blistering nyob rau sab nraum qab ntawm cov hlau ntxig los yog nyob rau hauv tshwj xeeb yog tuab. Qhov no yog vim qhov nthuav dav ntawm cov pa roj tso tawm los ntawm cov yas uas tsis tau txias tag thiab ua kom tawv nqaij nyob rau hauv qhov kev txiav txim ntawm lub siab sab hauv.
Kev daws:
1. Ua kom txias txias. Txo cov pwm kub, ncua sij hawm qhib pwm, thiab txo cov khoom kom qhuav thiab ua haujlwm kub.
2. Txo cov filling ceev, txo lub voj voog tsim thiab txo cov dej tsis kam.
3. Ua kom lub zog tuav thiab lub sijhawm.
4. Txhim kho qhov xwm txheej uas cov phab ntsa ntawm ib feem yog tuab heev los yog cov thickness hloov tau zoo heev.
Ua rau kev tsom xam ntawm pob tshab tsis xws luag
Cov pob tshab uas ua los ntawm cov pob zeb yaj, craze, tawg polystyrene thiab plexiglass tuaj yeem pom qee qhov glittering zoo nyiaj kab los ntawm lub teeb. Cov kab txaij nyiaj no tseem hu ua speckles lossis tawg. Qhov no yog vim qhov kev ntxhov siab tsim nyob rau hauv txoj kab ntsug ntawm lub tensile kev nyuaj siab, uas ua rau cov polymer molecules taw qhia nyob rau hauv cov kev taw qhia ntws, ua rau lub refractive index ntawm oriented ib feem txawv ntawm qhov uas tsis yog-oriented ib feem. Thaum lub teeb dhau los ntawm kev sib tshuam ntawm ob qhov chaw, nws refracts thiab ua rau craze.
daws:
(1) Tshem tawm qhov cuam tshuam ntawm cov pa roj thiab lwm yam impurities, thiab tag nrho cov yas kom qhuav.
(2) Txo cov khoom kub, kho lub chim kub hauv ntu, thiab ua kom cov pwm kub kom zoo.
(3) Ua kom lub zog txhaj tshuaj thiab txo qhov kev txhaj tshuaj nrawm.
(4) Ua kom nce lossis txo qis rov qab siab ntawm kev ua ntej molding thiab txo cov ntsia hlau ceev.
(5) Txhim kho qhov tso pa tawm ntawm cov dej ntws thiab kab noj hniav.
(6) Tshem tawm qhov blockage ntawm nozzle, khiav thiab rooj vag. (7) Txo lub voj voog molding, thiab tshem tawm cov craze los ntawm annealing tom qab demoulding: khaws polystyrene rau 15 feeb ntawm 78 degree, los yog rau 1 teev ntawm 50 degree, thiab khaws polycarbonate rau ob peb feeb tom qab cua sov mus rau 160 degree los yog saum toj no.