Kev lag luam foundry kuj tseem sib cais los ntawm silica xuab zeb. Raws li cov ntxhia muaj pes tsawg leeg ntawm cov xuab zeb nyoos, cov xuab zeb tau muab faib ua quartz-based xuab zeb thiab cov xuab zeb uas tsis yog quartz. Ntawm lawv, quartz-raws li cov xuab zeb muaj qhov loj tshaj plaws thiab muaj cov ntawv thov dav tshaj plaws. Quartz xuab zeb tseem hu ua silica xuab zeb. Muaj ob hom ntuj silica xuab zeb thiab dag silica xuab zeb. Foundry natural silica xuab zeb yog qhov yooj yim tshaj plaws, loj tshaj plaws, thiab tseem ceeb tshaj plaws raw khoom thiab cov khoom siv rau kev tsim cov txheej txheem casting. Silica sands muaj cov khoom loj nyob rau saum npoo ntawm lub ntiaj teb' s crust, yooj yim thiab yig thiab siv tau rau kev tsuas, thiab siv dav hauv tsev thiab txawv teb chaws. Raws li kev txheeb cais, kuv lub teb chaws' s silica xuab zeb ore mining thiab ua lag luam yog ntau tshaj 30O. Tam sim no, tag nrho cov nyiaj castings hauv kuv lub teb chaws tau mus txog ze li ntawm 50 lab tons, ntawm 70% siv cov txheej txheem xuab zeb, thiab cov khoom tseem ceeb rau cov xuab zeb casting txheej txheem yog silica xuab zeb. Kev noj txhua xyoo ntawm cov xuab zeb tshiab hauv kev lag luam foundry hauv kuv lub teb chaws yog ntau tshaj 200,000 tons, thiab cov xuab zeb rov siv dua ntau dua 200 lab tons. Lub ntuj siliceous xuab zeb ore kev pab nyob rau hauv peb lub teb chaws yog cov nplua nuj, uas muaj peev xwm ua tau raws li qhov xav tau ntawm kev lag luam hauv tsev. Casting ntau lawm yuav tsum nruj me ntsis rau qhov zoo ntawm silica xuab zeb (xws li muaj pes tsawg leeg, lub kaum sab xis coefficient, deg huv si, av nkos ntsiab lus, reusability, particle loj thiab gradation thiab lwm yam kev qhia). Lub teb chaws kuj tau tsim cov qauv sib xws rau cov xuab zeb silica. Cov kev hloov pauv ua tiav ntawm cov txheej txheem casting tau txhim kho cov txheej txheem ntau lawm ntawm silica xuab zeb siv rau casting, thiab tseem txhawb kev txhim kho txuas ntxiv thiab hloov khoom siv ntau lawm. Cov cuab yeej siv tshuaj txhuam thiab cov khoom siv roasting tau tsim los ntawm kos, cov qauv tau txhim kho ib hnub dhau ib hnub, thiab cov khoom siv tau zoo dua qub. Kev tsim cov silica xuab zeb tau semi-mechanized rau mechanization thiab ib nrab automation. Kev ua tau zoo ntawm txhua txoj kab ntau lawm tau nce los ntawm 20 tons ntawm ib teev mus rau 40-50 Lub peev xwm txhua xyoo tuaj yeem ncav cuag ntau tshaj 200,000 tons ib teev (sab qaum teb tsuas muaj 6 lub hlis ntawm kev tsim khoom ib xyoos). Nyob rau theem no, nyob rau hauv cov nqe lus ntawm tus naj npawb ntawm silica xuab zeb ntau lawm cov lag luam los yog tag nrho cov zis, sab qaum teb ntawm kuv lub teb chaws tau qhia ib tug tsis tu ncua upward trend, thaum sab qab teb tau qhia ib tug tseem ceeb poob; los ntawm qhov kev xav ntawm tag nrho cov khoom siv thiab kev xav tau qhov xwm txheej, cov khoom siv ntawm cov xuab zeb zoo tib yam tshaj li qhov xav tau, thiab muaj qhov sib txawv ntawm cov xuab zeb zoo silica, tshwj xeeb tshaj yog High-purity thiab ultra-ntshiab silos yog nruj me ntsis nqi thiab nyob rau hauv cov khoom luv luv. Nyob rau hauv xyoo tas los no, ib qho kev hloov pauv zoo nyob hauv kuv lub teb chaws' cov kev lag luam ntawm cov xuab zeb nyoos yog tias lawv tau nce lawv cov peev hauv kev hloov pauv thev naus laus zis thiab tab tom txhim kho mus rau kev lag luam dav. Ntau yam ntawm kev tsim khoom tau dhau los ua ntau thiab ntau yam. Washable xuab zeb, txhuam xuab zeb, xaiv cov xuab zeb, coated xuab zeb, thiab lwm yam tau ua tau raws li qhov xav tau ntawm kuv lub teb chaws' s foundry ntau lawm kev txhim kho.
Nrog rau txoj kev loj hlob ntawm lub ntiaj teb no ntawm kev lag luam casting, kev sib tw hauv kev lag luam casting yog qhov hnyav zuj zus, thiab cov kev xav tau siab dua tau muab tso rau pem hauv ntej rau qhov zoo, lub teeb yuag, thiab kev ua kom zoo ntawm castings. Nws yog ib qho tsim nyog yuav tau txais ntau yam tshiab ze-net precision forming txheej txheem. Sand kev ua tau zoo tso cov kev xav tau siab dua. Nyob rau tib lub sijhawm, nws tseem ua rau muaj kev nyuaj ntawm kev tsuas, kev ua thiab kev ua cov silica xuab zeb, tshwj xeeb tshaj yog lub teb chaws tau muab cov kev xav tau siab dua thiab siab dua rau kev tiv thaiv ib puag ncig ntawm kev ua tiav kev txhim kho kom ruaj khov. Xaiv cov xuab zeb zoo silica, muab qhov tseem ceeb rau kev rov ua dua tshiab, thiab kev siv cov peev txheej zoo yog qhov kev xaiv zoo tshaj plaws los ua kom tiav ntsuab casting. Nyob rau hauv lub neej yav tom ntej, foundry xuab zeb lag luam yuav tsum pib los ntawm cov nram qab no yam rau rationally tsim thiab siv high-zoo natural silica xuab zeb cov kev pab:
1. Kho cov silica xuab zeb kev lag luam qauv thiab ua kom muaj kev hloov pauv thiab hloov kho dua tshiab. Tsom ntsoov rau kev daws qhov tshwm sim ntawm qhov tsis tshua muaj kev lag luam concentration, ntau lub tuam txhab tsim khoom, cov nplai me me, cov khoom siv qis, cov mining tsis zoo, thiab kev sib tw vicious."Small chaos" tsom mus rau kev txhawb nqa kev sib koom ua ke kom paub txog kev lag luam niaj hnub, kev siv zog, loj-loj, qauv, thiab ecologicalization.
2. Txhim kho kev tsim kho ntawm natural silica xuab zeb txheej txheem kev lag luam txheej txheem, ua kom lub formulation ntawm pab pawg neeg cov qauv uas haum lub lag luam xav tau kev pab, thiab txhawb cov formulation ntawm high-zoo silica xuab zeb qauv nyob ib ncig ntawm lub high-kev ua tau zoo thiab high-zoo txoj kev loj hlob ntawm lub ntuj silica xuab zeb kev lag luam.
3. Txhim khu kev tswj ntawm cov xuab zeb thiab silica xuab zeb ntau lawm cov lag luam, tsim kom muaj kev tswj xyuas zoo thiab kev tswj xyuas cov txheej txheem, thiab tsim cov lag luam qib siab.