Piav qhia txog kev paub ntawm cov txuj ci pib txhaj tshuaj molding

Kev txhaj tshuaj molding tshuab yog cov tshuab tshwj xeeb rau kev tsim cov khoom yas, uas yog siv los tsim cov yas ntau yam ntawm kev siv tsheb, kev kho mob, cov neeg siv khoom thiab cov kev siv tshuaj. Kev txhaj tshuaj molding yog qhov txheej txheem nrov vim tias vim li tsib yam nram qab no:

1. Muaj peev xwm nce khoom ntxiv;

2. Ob qhov yooj yim thiab cov qauv duab tuaj yeem ua;

3. Tsawg kawg yuam kev;

4. Muaj ntau cov khoom siv tuaj yeem siv;

5. Tsawg dua tus nqi khoom siv roj thiab cov nqi zog ua haujlwm.

Kev txhaj tshuaj molding tshuab siv cov yas yas yas thiab txhaj tshuaj pwm kom ua tiav kev txhaj tshuaj moulding. Lub tshuab yog tsuas yog muab faib ua ob qhov:

Clamping cov cuab yeej-ua kom cov pwm kaw nyob rau hauv siab;

Kev txhaj tshuaj ntaus-melting yas roj pleev thiab ramming yas molten rau hauv cov pwm.

Ntawm chav kawm, cov cav tov kuj tseem muaj nyob hauv ntau qhov sib txawv, kho qhov zoo los tsim cov ntu ntawm ntau qhov ntau thiab tsawg, thiab yog tus cwj pwm los ntawm cov quab yuam clamping uas lub tshuab txhaj tshuaj tuaj yeem tsim.

Cov pwm feem ntau yog ua los ntawm txhuas lossis hlau, tab sis lwm cov ntaub ntawv kuj tseem tuaj yeem. Nws tau muab faib ua ob lub halves, thiab nws cov duab yog qhov ncaj qha ua rau cov hlau. Cov pwm yuav yooj yim heev thiab pheej yig, lossis nws kuj yuav yooj yim heev thiab nws kim heev. Qhov sib xyaw ua ke tau ncaj qha ncaj qha rau cov feem kev teeb tsa thiab cov naj npawb ntawm txhua qhov pwm.

Thermoplastic resin yog nyob rau hauv daim ntawv pellet thiab yog cov khoom siv feem ntau siv cov khoom hauv kev txhaj tshuaj molding. Muaj ntau hom thermoplastic resins nrog cov khoom siv dav thiab tsim nyog rau ntau yam khoom siv siv. Polypropylene, polycarbonate thiab polystyrene yog cov piv txwv ntawm cov feem ntau siv cov resins. Ntxiv rau qhov kev xaiv ntau ntawm cov ntaub ntawv muab los ntawm thermoplastics, lawv kuj tseem rov ua dua tshiab, ntau yam thiab yooj yim kom yaj.

Cov txheej txheem molding ua nyob rau hauv kev txhaj tshuaj molding tshuab muaj rau 6 qhov yooj yim:

1. Clamping-lub tshuab clamping ntawm lub tshuab nias ob ob lub pwm ntawm cov pwm ua ke;

2. Kev txhaj tshuaj-daim hlau yas tom qab los ntawm kev txhaj tshuaj ntawm lub tshuab raug tsoo rau hauv pwm;

3. Kev ua kom siab-cov roj hmab yas txhaj tshuaj rau hauv pwm yog nyob rau hauv siab kom ntseeg tau tias txhua qhov chaw ntawm cov seem yog yas;

4. Cov cua txias-cia cov yas kub kom txias rau hauv daim duab kawg thaum nws tseem nyob hauv pwm;

5. Pwm qhib-lub tshuab clamping ntawm lub tshuab cais cov pwm thiab faib nws ua ob nqaj;

6. Ejection-cov khoom tiav tiav tau muab tshem tawm ntawm pwm.

Kev txhaj tshuaj molding yog qhov thev naus laus zis zoo tshaj plaws uas tuaj yeem tsim tshuaj-tsim los. Txawm li cas los xij, nws tseem muaj txiaj ntsig zoo rau kev ua qauv rau kev tsim khoom thawj zaug lossis rau cov neeg siv khoom lossis khoom kuaj. Yuav luag txhua qhov chaw yas tuaj yeem tsim los ntawm kev txhaj tshuaj molding, thiab nws daim teb thov tsis muaj qhov txwv, muab cov tuam ntxhab nrog cov txheej txheem tsim nqi los tsim ntau yam yas seem.


Sijhawm Tshaj Tawm: Plaub Hlis-12-2021