Kev ceev faj rau txheej xuab zeb casting.

Ib qho tseem ceeb txuas uas cuam tshuam rau cov ntsiab lus ntawm cov xuab zeb coated yog kev kho cov xuab zeb qub. Nws tuaj yeem hais tias yog tias qhov kev kho cov xuab zeb qub tsis nyob hauv qhov chaw, nws tsis tuaj yeem nres kom zoo dua qub cov xuab zeb kho qhov tseeb ntawm no. Cov saum toj no suav nrog hom qub xuab zeb, qhov kub ntawm cov xuab zeb qub, cov duab ntawm cov xuab zeb stepped, thiab lwm yam. Nws tuaj yeem hais tias cov no yog tag nrho cov cuam tshuam los ntawm nws cov av nplaum xuab zeb casting. Tsis tas li ntawd, peb paub tias qhov casting ntawm coated xuab zeb yuav koom nrog qee cov xuab zeb tshiab, lossis lwm yam khoom siv tshiab, uas yuav cuam tshuam rau cov xuab zeb casting. Xuab zeb kuj tseem siv los saib xyuas kev ua haujlwm ntawm qee cov xuab zeb molding. Kev kho ntawm qee cov av nplaum ntsuab xuab zeb siv rau coated xuab zeb casting yuav raug cuam tshuam los ntawm ntau yam.

Yog tias koj tsis xyuam xim rau cov kev cuam tshuam no, nws yuav cuam tshuam rau kev ua tau zoo ntawm tag nrho cov kev lag luam foundry. Nws yuav tsum tau hais tias muaj ntau yam uas cuam tshuam rau cov casting ntawm coated xuab zeb. Ntxiv nrog rau kev tuav cov ntaub ntawv no, nws tseem suav nrog cov cuab yeej siv thiab kev tsim kho ntawm cov neeg ua haujlwm. Nws tuaj yeem hais tias cov no yuav cuam tshuam ntau dua lossis tsawg dua.

Ib qho teeb meem tshwm sim hauv cov txheej txheem ntawm cov xuab zeb coated yog cov dej tsis zoo lossis cov huab cua permeability tsis zoo. Siv lub zog sib tsoo kom tsim nyog los txhim kho cov pa tawm thiab tsis txhob tuav koj ua pa; siv cov ntaub ntawv nrog me me deformation raws li lub thawv tseem ceeb; siv cov xuab zeb coated nrog zoo fluidity thiab huab cua permeability. Cov tub ntxhais deformation, tawg, cua sov tsis sib xws ntawm pwm, lossis qhov sib txawv loj ntawm cov tub ntxhais phab ntsa thickness, uas ua rau tsis muaj qhov sib txawv ntawm qhov shrinkage thaum txias; core diav rawg deformation lossis tsis sib npaug ntawm cov xuab zeb cores; tsis zoo siab -kub kev ua tau zoo ntawm coated xuab zeb castings; castings Qhov cua tsis zoo ntawm cov pores thiab cores; cov huab cua loj hauv cov xuab zeb lossis cov cua tsis tsim nyog; xuab zeb cores tsis kho tag nrho. Lub tshuab tso pa yuav tsum tau ua kom zoo dua los txhim kho cov pa tawm; siab -concentration los yog coarser nyoos xuab zeb yog siv rau coated xuab zeb casting; low- roj coated xuab zeb yog siv.

Coated xuab zeb casting yuav tsum siv kub resistant, tsawg shrinkage coated xuab zeb; qhov txhim kho pouring system txais yuav hom tsis muaj zog. Cov resin nyob rau hauv cov xuab zeb coated extinguishes thiab generates tshav kub ntawm high kub, uas yuav txo tau lub solidification ceev ntawm cov hlau molten thiab ua rau shrinkage kab noj hniav.

Coated xuab zeb yog shelled thaum lub sij hawm casting txheej txheem ntawm coated xuab zeb. Qhov teeb meem no yog vim lub pwm tsim tsis tsim nyog thiab qhov tsis sib xws ntawm cov tub ntxhais lub thawv kub, uas ua rau qhov kub thiab txias ntawm qhov tsis tshua muaj qhov kub thiab tev; cov xuab zeb txheej txheej muaj qhov tsis tshua muaj melting point, qeeb curing ceev, thiab tsis tshua muaj thermal zog. Nws yog ib qho tsim nyog los txhim kho cov qauv pwm kom ua kom qhov kub thiab txias sib xws; xaiv resins nrog siab melting point, ceev curing ceev, thiab siab thermal zog. Coated xuab zeb casting muaj zoo casting formability thiab meej contours. Lub stacking nres pouring txoj kev yuav siv tau, thiab cov technical yield yog siab, uas muaj peev xwm ncav cuag ntau tshaj 90 feem pua.