Teeb meem thiab ua rau yooj yim tshwm sim ntawm epoxy resin casting qhov chaw nyob rau hauv lub tshuab nqus tsev kho cua sov khoom
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Teeb meem thiab ua rau yooj yim tshwm sim ntawm epoxy resin casting qhov chaw nyob rau hauv lub tshuab nqus tsev kho cua sov khoom
Ua ntej, nws yog ib qho tshwm sim los tsim cov npuas hauv npuas casting qhov chaw. Kev tswj ntawm npuas nyob rau hauv ib tug tej yam zoo ntau yam yog ib tug txheeb ze lub tswv yim, uas yog, tsuas muaj qhov loj thiab tus naj npawb ntawm npuas, thiab kiag li tsis muaj npuas yog irresistible. Lub hom phiaj ntawm kev tswj kom zoo yog Cov huab cua npuas yuav tsum muaj me me thiab me me, thiab muaj ntau yam ua rau cov cua npuas. Cov laj thawj tseem ceeb suav nrog kev siv lub tshuab nqus tsev tsawg, lub tshuab nqus tsev lossis lub tshuab nqus tsev tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, resin thiab curing tus neeg saib xyuas muaj cov teeb meem tsis sib haum xeeb, thiab muab tub lim absorbs dej ntau dhau yam tsis muaj pretreatment. , thaum lub sij hawm casting, qhov kho cov tshuaj tiv thaiv yog ceev heev los tsim ib qho tawg, thiab cov viscosity ntawm cov sib tov yog loj heev; qhov thib ob yog qhov tsis xws luag. Qhov tsis xws luag tuaj yeem hais tias yog npuas loj, uas yog, npuas nce mus txog ib theem, uas yog hu ua qhov tsis xws luag. Cov laj thawj rau qhov tsis xws luag suav nrog viscosity ntawm castable loj heev. Cov pwm tsis tuaj yeem sau tau, cov pwm sealing tsis nruj, thiab ib feem ntawm cov khoom xau, qhov pib kho kub siab dhau lawm, thiab cov gel sib tov nrawm dhau; qhov thib peb yog tawg. Kev tawg ntawm epoxy casting qhov chaw yeej ib txwm yog lub ntsiab lus tseem ceeb hauv epoxy resin casting technology tshawb fawb. Hauv particular, micro-cracks tshwm sim los ntawm kev ntxhov siab sab hauv yog qhov tseem ceeb cuam tshuam rau qhov zoo ntawm castables. Cov laj thawj tseem ceeb ntawm cov kab nrib pleb hauv castables suav nrog kev xaiv tsis tsim nyog ntawm cov khoom siv casting thiab cov qauv tsim tsis tsim nyog (cov khoom siv yog nkig dhau lawm, cov castings tau tawg thaum kub hloov, thiab cov casting yog solidified. Cov khoom shrinkage tus nqi yog loj heev, muaj coob tus neeg. ntawm micro-cracks yog generated thaum lub sij hawm curing txheej txheem ntawm lub casting qhov chaw, thiab lwm yam), tus tsim ntawm lub casting qhov chaw nws tus kheej los yog tsis tsim nyog tsim ntawm pwm thiab inserts tsim cov ntsiab lus ntawm kev ntxhov siab nyob rau hauv lub casting qhov chaw, careless demoulding lag luam, thiab ntau heev. Lub zog hauv zos (vim yog thaum demoulding, cov khoom siv tsis tiav thiab qhov demolding kub siab heev. Lub sijhawm no, cov khoom siv dag zog ntawm cov khoom ruaj khov tsawg heev, thiab cov kab nrib pleb yog yooj yim tsim nyob rau hauv sab nraud quab yuam), gel solidification kub yog siab dhau lawm, thiab qhov txias ceev ntawm ib feem tom qab solidification yog ceev heev.
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