1. Cov kev npaj ua ntej txhaj tshuaj molding yog dab tsi?
(1) Kev tshuaj xyuas cov khoom siv raw thiab kev txiav txim siab ntawm cov txheej txheem kev ua haujlwm;
(2) Preheating thiab ziab ntawm cov ntaub ntawv;
(3) Preheating ntawm inserts;
(4) Ntxuav cov khoom siv thoob;
(5) Kev xaiv tus neeg tso tawm.
2. Yam dab tsi txwv qhov loj ntawm cov khoom yas?
(1) txwv los ntawm fluidity ntawm plastics. Raws li qee yam khoom siv thiab kev siv thev naus laus zis, cov yas uas muaj dej zoo tuaj yeem siv los tsim cov yas loj dua; Ntawm qhov tsis sib xws, qhov loj ntawm cov khoom yas uas tuaj yeem ua pwm yog me dua.
(2) Qhov loj ntawm cov khoom yas kuj raug txwv los ntawm cov khoom siv molding. Qhov loj ntawm kev txhaj tshuaj molded yas yog txwv los ntawm kev txhaj tshuaj ntim ntawm lub tshuab txhaj tshuaj, lub zog clamping thiab qhov loj ntawm cov qauv; Qhov loj ntawm cov khoom yas tsim los ntawm compression thiab txhaj tshuaj molding yuav tsum raug txwv los ntawm qhov siab tshaj plaws ntawm cov xovxwm thiab qhov siab tshaj plaws ntawm cov xovxwm worktable.
3. Lub teb chaws tus qauv ua raws li qhov ntev ntawm cov khoom yas?
GB/T14486 - 93 Txuj rau Dimensional Tolerances ntawm Engineering Plastics Moulding Yas Qhov Chaw.
4. Dab tsi yog qhov pom zoo ntawm ib feem yas?
Qhov zoo ntawm cov khoom yas yog hais txog qhov tsis xws luag hauv lub xeev ntawm cov khoom yas tom qab molding, xws li kev tsis txaus, dhau, flash, kev nyuaj siab, cua qhov, weld kab, craze, warpage thiab shrinkage, dimensional instability, thiab lwm yam.
5. Lub teb chaws tus qauv ua raws li qhov roughness ntawm cov khoom yas?
Qhov saum npoo roughness ntawm cov khoom yas yuav tsum ua raws li GB / T14234-1993 Tus qauv rau Nto Roughness ntawm cov khoom yas - Nto Roughness Ua tiav los ntawm cov txheej txheem thiab cov khoom sib txawv.
6. Dab tsi yog yam uas ua rau qhov tsis txaus ntseeg ntawm cov khoom yas?
Cov laj thawj uas ua rau qhov tsis txaus ntseeg ntawm cov khoom yas muaj xws li:
(1) Lub tshuab hluav taws xob thiab hydraulic ntawm lub tshuab txhaj tshuaj tsis ruaj khov;
(2) Tus nqi pub mis tsis ruaj khov;
(3) Cov khoom yas tsis sib xws thiab qhov shrinkage tsis ruaj khov;
(4). Lub molding tej yam kev mob (kub, siab, lub sij hawm) hloov, thiab lub molding voj voog yog inconsistent;
(5). Lub rooj vag me me dhau, qhov loj ntawm cov kab noj hniav ntau qhov chaw nres nkoj tsis sib haum, thiab kev pub mis tsis sib npaug;
(6) Tsis zoo pwm precision, tsis ruaj khov ntawm kev txav ntawm qhov chaw thiab qhov chaw tsis raug.
7. Vim li cas ib feem yas yuav tsum muaj lub kaum sab xis demoulding? Nws qhov luaj li cas nyob ntawm seb?
Raws li cov yas shrinks tom qab txias, nws yuav nruj nreem qhwv ntawm lub punch core rub core, los yog cov yas yuav cling rau kab noj hniav ntawm lub concave pwm vim adhesion. Txhawm rau kom yooj yim demoulding thiab tiv thaiv khawb ntawm qhov chaw ntawm cov khoom yas thaum lub sij hawm demoulding, sab hauv thiab sab nrauv ntawm cov khoom yas yuav tsum muaj qhov tsim nyog demoulding txoj kab nqes raws li demoulding kev taw qhia thaum tsim. Qhov loj ntawm qhov demoulding txoj kab nqes nyob ntawm qhov kev ua tau zoo ntawm cov yas, cov duab geometric xws li qhov siab lossis qhov tob, phab ntsa thickness thiab kab noj hniav ntawm lub xeev xws li roughness, ua cov kab, thiab lwm yam. yas; Rau cov khoom yas uas muaj cov duab zoo lossis ntau lub qhov, siv lub kaum sab xis loj dua; Yog tias cov yas qhov siab loj thiab qhov tob tob, lub kaum sab xis me me raug coj mus; Nrog rau qhov nce ntawm phab ntsa tuab, lub zog ntawm lub qhov hauv lub qhov qhwv lub hauv paus yog loj, thiab lub demoulding lub kaum sab xis yuav tsum loj dua.
8. Dab tsi yuav tsum yog qhov tsawg kawg nkaus ntawm cov yas ntu phab ntsa thickness raws li?
Qhov tsawg kawg nkaus qhov ntev ntawm phab ntsa tuab ntawm cov yas yuav tsum ua raws li cov hauv qab no: lub zog txaus thiab nruj; Thaum lub sij hawm demoulding, nws tuaj yeem tiv taus lub zog thawb ntawm lub tshuab thawb tsis muaj deformation; Nws tuaj yeem dais lub zog fastening thaum sib dhos. Qhov tsawg kawg nkaus phab ntsa tuab ntawm cov khoom yas sib txawv nrog rau hom yas thiab qhov loj ntawm cov khoom yas.
9. Dab tsi yog qhov cuam tshuam ntawm kev txhawb nqa tav ntawm cov khoom yas?
Lub luag haujlwm tseem ceeb ntawm txoj hlua stiffening yog txhawm rau txhim kho lub zog thiab qhov tawv nqaij ntawm cov yas yam tsis tau nce phab ntsa tuab, kom tsis txhob muaj kev sib tsoo deformation ntawm cov yas. Tsis tas li ntawd, kev npaj tsim nyog ntawm kev txhawb nqa cov ribs kuj tuaj yeem txhim kho qhov fluidity ntawm pwm filling, txo qhov kev ntxhov siab sab hauv ntawm cov khoom yas, thiab tsis txhob muaj qhov tsis xws luag xws li cua qhov, shrinkage kab noj hniav thiab dents.
10. Vim li cas lub voj voog arc hloov feem ntau siv rau cov khoom yas?
Txhawm rau kom tsis txhob muaj kev ntxhov siab, txhim kho lub zog ntawm cov yas, txhim kho qhov ntws ntawm cov yaj thiab ua kom yooj yim demoulding, kev hloov pauv arcs yuav tsum tau siv ntawm cov pob qij txha ntawm sab hauv thiab sab nraud ntawm cov yas. Tsis tas li ntawd, lub voj voog ncig kuj ua rau cov yas zoo nkauj, thiab cov kab noj hniav pwm yuav tsis tawg vim kev ntxhov siab thaum lub sij hawm quenching los yog siv.