1. Nws yog siv rau batch loj thwmsim, thiab cov zis ntawm pwm yog me me. Nws tuaj yeem ua los ntawm ntoo lossis cob. Txawm li cas los xij, yog tias qhov kev sim pwm siv los muab cov ntaub ntawv ntawm shrinkage, seem stability, thiab lub sij hawm voj voog ntawm cov khoom, ib leeg-cav pwm yuav tsum tau siv rau kev sim: thiab nws tuaj yeem lav tau siv raws li kev tsim khoom. Pwm feem ntau yog ua los ntawm plaster, tooj liab, aluminium lossis aluminium-steel alloys, thiab aluminium-resin tsis tshua siv.
2. Geometric duab tsim. Thaum tsim, nws yog ib qho tsim nyog yuav tau xav txog qhov kev ruaj ntseg thiab qhov zoo ntawm qhov chaw. Piv txwv li, cov khoom tsim thiab kev ruaj ntseg seem yuav tsum tau siv cov poj niam pwm (concave pwm), tab sis cov khoom uas siab dua nto gloss yuav tsum tau siv cov txiv neej pwm (convex pwm). Nyob rau hauv txoj kev no, tus neeg yuav khoom ntawm cov khoom yas yuav siv ob yam no los txiav txim siab. taw tes, kom cov khoom tuaj yeem ua tau raws li qhov zoo tshaj plaws. Kev paub dhau los tau ua pov thawj tias tus qauv tsim uas tsis ua raws li kev ua haujlwm tiag tiag feem ntau ua tsis tiav. tus
3. Dimensional stability. Thaum lub sij hawm molding txheej txheem, qhov saum npoo ntawm cov yas nyob rau hauv kev sib cuag nrog cov pwm muaj qhov zoo dua qhov ruaj khov dua li qhov uas tawm hauv pwm. Yog tias cov khoom tuab yuav tsum tau hloov pauv vim yog cov khoom nruj rau yav tom ntej, nws yuav ua rau kev hloov pauv ntawm tus txiv neej pwm mus rau poj niam pwm. Qhov ntev ntev ntawm cov yas tsis tuaj yeem qis dua 10 feem pua ntawm qhov shrinkage tus nqi. tus
4. Qhov saum npoo ntawm cov yas. Nyob rau hauv cov nqe lus ntawm ntau yam uas cov khoom molding tuaj yeem npog, cov qauv ntawm qhov pom ntawm cov yas yuav tsum tau tsim ntawm kev sib cuag nrog cov pwm. Yog tias ua tau, sab du ntawm cov yas yuav tsum tsis txhob cuam tshuam nrog pwm nto. Raws li yog rooj plaub nrog da dej thiab ntxhua khaub ncaws tubs siv poj niam pwm. tus
5. Rau trimming, yog siv tshuab kab rov tav saws txiav tawm lub clamping ntug ntawm cov yas, yuav tsum muaj tsawg kawg yog 6-8mm margin nyob rau hauv qhov siab qhov siab. Kev ua haujlwm tiav ntxiv, xws li kev sib tsoo, laser txiav lossis jetting, yuav tsum muaj nyiaj pub dawb. Qhov sib txawv ntawm cov kab txiav ntawm rab riam tuag yog qhov tsawg tshaj plaws, thiab qhov dav ntawm qhov xuas nrig ntaus tuag kuj yog me me thaum txiav. Cov no yog txhua yam uas yuav tsum tau xyuam xim rau. tus
6. shrinkage thiab deformation. Plastics yog yooj yim rau shrinkage (xws li PE), thiab qee qhov yas yog yooj yim deform. Txawm hais tias yuav tiv thaiv lawv li cas, cov khoom yas yuav deform thaum lub caij txias. Nyob rau hauv cov xwm txheej zoo li no, nws yog ib qho tsim nyog los hloov cov duab ntawm molding tuag kom hloov mus rau qhov sib txawv ntawm cov duab ntawm cov yas. Piv txwv li: Txawm hais tias cov phab ntsa ntawm cov yas tseem nyob ncaj, nws qhov chaw siv tau deviated los ntawm 10mm; pwm puag tuaj yeem raug tsa los kho qhov shrinkage ntawm no deformation. tus
7.Shrinkage, cov nram qab no shrinkage yam yuav tsum tau coj mus rau hauv tus account thaum tsim blister molding. ① Cov khoom molded shrinks. Yog hais tias lub shrinkage tus nqi ntawm cov yas tsis tuaj yeem paub meej, nws yuav tsum tau txais los ntawm kev ua piv txwv lossis kev sim nrog cov pwm ntawm cov duab zoo sib xws. Nco tseg: Tsuas yog tus nqi shrinkage tuaj yeem tau los ntawm txoj kev no, thiab qhov loj me me tuaj yeem tsis tau. ② Shrinkage tshwm sim los ntawm kev tsis zoo ntawm cov xov xwm nruab nrab, xws li ceramics, silicone roj hmab, thiab lwm yam. ③ Shrinkage ntawm cov khoom siv hauv pwm, xws li shrinkage thaum casting txhuas.
