Kev tshaj lij chaw tsim khoom ntawm cov tshuab thermoforming.
Lus
Kev tshaj lij chaw tsim khoom ntawm cov tshuab thermoforming.
Lub pwm thermoforming yog dab tsi?
Hom Pwm Thermoforming
Cov pwm thermoforming tuaj yeem faib ua ob pawg: pwm txiv neej (cov pwm zoo) thiab pwm poj niam (cov pwm tsis zoo).
Txiv neej pwm
Ib lub pwm txiv neej, tseem hu ua pwm pab ntsaws, muaj ib lub duab siab uas daim ntawv thermoplastic tau draped. Hom pwm no yog qhov zoo thaum xav tau cov ntsiab lus sab hauv lossis cov qauv ntawm qhov chaw hauv cov khoom. Cov pwm txiv neej feem ntau yog siv rau hauv cov ntawv thov uas qhov tuab ntawm phab ntsa yog qhov tseem ceeb.
Poj niam pwm
Ib lub pwm poj niam, tseem hu ua pwm qhov, muaj ib lub duab recessed uas daim ntawv thermoplastic raug nias rau hauv. Hom pwm no yog tsim rau cov ntawv thov uas xav tau cov qauv nto ntxaws ntxaws ntawm sab nraud ntawm cov khoom. Cov pwm poj niam feem ntau yog siv los tsim cov khoom xws li cov tais, lub hau, thiab cov thawv ntim khoom.
Cov Khoom Siv Pwm Thermoforming
Vim tias thermoforming tsis muaj kev kub siab thiab cov duab ntawm cov khoom yooj yim heev, qhov siab uas siv rau ntawm cov pwm yog qis, thiab cov pwm tsis xav tau kev nruj heev. Cov pwm thermoforming tuaj yeem ua los ntawm ntau yam khoom siv xws li ntoo (ntoo tawv thiab ntoo nias), plaster, yas (phenolic resin, epoxy resin, thiab lwm yam), hlau, thiab txhuas alloys.
Cov txheej txheem tiv thaiv xeb twg siv rau cov channel txias hauv cov pwm thermoforming?
Lub hom phiaj ntawm kev tiv thaiv xeb hauv cov pwm thermoforming yog kom tswj tau lub peev xwm hloov pauv cua sov ntawm cov pwm. Hauv cov pwm thermoforming, qhov kub ntawm dej yog li ntawm 5–150 ° C. Nyob rau hauv cov xwm txheej ib txwm muaj, dej tuaj yeem ua rau muaj kev puas tsuaj ntau yam rau cov pwm. Cov txheej txheem tiv thaiv xeb hauv qab no yog siv rau cov kav dej txias hauv cov pwm thermoforming:
Ua tib zoo mloog thaum lub sijhawm tsim pwm thiab tsim khoom kom tiv thaiv txhuas thiab tooj liab kom tsis txhob sib chwv ncaj qha rau hauv cov kav dej. Kev sib chwv ncaj qha ntawm txhuas thiab tooj liab tuaj yeem ua rau xeb ntawm txhuas. Yuav tsum muaj cov hlau tsis xeb lossis yas cais uas ntev tsawg kawg yog 30 cm ntawm txhuas thiab tooj liab.
Thaum cov phab ntsa pwm nyias nyias (cais lub baffle ua ntu zus), zoo li feem ntau hauv cov xwm txheej tsim khoom thiab hauv cov pwm txiav ntawm cov tshuab thermoforming uas pub yob tsis siv neeg, nws raug pom zoo kom teeb tsa cov anodes magnesium sacrificial hauv cov dej.
Thaum tsim lub tshuab cua txias, yog tias ua tau, qhov seem ntawm qhov yuav tsum tau ua kom loj li loj tau kom qhov ceev ntawm dej tsis tshaj 1.5 m/s. Qhov ceev ntawm dej siab tuaj yeem ua rau xeb.
Ua ntej siv pwm, cov kav dej yuav tsum tau ntxuav kom huv si. Yog tias ua tau, ua ntej tshaj plaws, siv cua tshuab kom huv si rau ob sab, tom qab ntawd siv dej los xyuas seb puas muaj qhov xau thiab yaug tom qab ntawd. Nws yog ib qho tseem ceeb heev uas yuav tsum siv lub lim dej kom ntseeg tau tias lub voj voog pwm lossis lub twj tso kua mis huv si, thiab thaum kawg siv cua tshuab kom qhuav.
Nws raug pom zoo kom siv cov khoom siv txias uas muaj cov tshuaj tiv thaiv xeb ntau dua. Qhov concentration uas xav tau nyob ntawm hom tshuaj tiv thaiv siv.
Kev tshaj lij chaw tsim khoom ntawm cov tshuab thermoforming.
