Abstract: Inorganic binders tau tshwm sim los ua ib qho kev kawm tseem ceeb rau kev txhim kho cov ntaub ntawv ntawm yav tom teb nrum, txhim kho kev ua haujlwm tsis zoo, thiab tus nqi qis. Piv rau cov neeg siv tshuaj ntsuab (xws li cov tshuaj kho tshuaj Daim ntawv no tshuaj xyuas cov kev tshawb fawb thiab kev thov cov xwm txheej ntawm inorganic kev kho mob ntawm cov ntaub ntawv tshawb fawb ntawm cov ntaub ntawv tshawb fawb ntawm cov khoom siv inorganic-recycling-recycling ntawm siv xuab zeb. Thaum kawg, cov ntawv thov cov kev txhim kho cov kev cia siab ntawm inorganic binders rau casting.
Cov ntsiab lus: inorganic binders; Silicates; Phosphates; Luam ntawv 3D; Siv cov xuab zeb siv dua tshiab; Tiam sis kev loj hlob
Ntsuab xuab zeb casting yog thawj cov txheej txheem txheej txheem rau kev tsim cov hlau nrum, cov khoom siv nyiaj txiag rau 70%}}% ntawm tag nrho cov kev tsim khoom. Kev kho vaj tse, raws li cov ntaub ntawv molding nyob rau hauv cov xuab zeb ntsuab nrum, yog lub luag haujlwm rau kev ua cov xuab zeb qub lossis rov qab ua cov xuab zeb lossis cores. Nyob ntawm cov hom thiab cov ntawv thov ntawm cov phau ntawv, cov xuab zeb ntsuab nruab tuaj yeem yog cov xuab zeb ntub dej xuab zeb, thiab cov xuab zeb cov xuab zeb, thiab silicate inorganic binder xuab zeb.
Av nplaum ntub xuab zeb casting yog qhov ntau lawm siv nyob rau hauv kev sib nraus hlau thiab me me cam khwb cia hlau vim nws tus nqi qis, thiab kev sib tw ua haujlwm qis, thiab kev sib tw ua haujlwm luv. Xyoo 1940, Resin Binders tau qhia txog kev lag luam Casting vim tias lawv tau siv cov xuab zeb, thiab siv cov hlau nplaum, thiab cov hlau uas tsis muaj hlau pov tseg. Cov txheej txheem Silicacic Binder Sands tau ua haujlwm txij li xyoo 1950 vim nws tus nqi qis dua, thiab yog feem ntau siv hauv kev tsim cov hlau nrum hlau.
Cov txheej txheem organic (cob cov txheej txheem xuab zeb tsim kev ua kom muaj kev phom sij, moulding, kuab tshuaj ib puag ncig thiab kev ua kom muaj kev noj qab haus huv ntawm cov neeg ua haujlwm cam khwb cia. Nrog kev nruj dua tshiab ntawm cov kev tiv thaiv ib puag ncig, tshwj xeeb yog kev txhim kho xuab zeb inorganic binds, nyob rau hauv kev cia siab ntawm cov organic binder cov txheej txheem.
Kev txhim kho ntawm cov pob txha inorganic inorganic tau dhau los ua cov dej khov kho kom tawv nqaij, cov roj carbon monoxide organcening dej Tam sim no, carbon dioxide gas tshuab bardening dej steel seem, thaum tshiab silation inorganic binder xuab zeb yog siv nyob rau hauv aluminium alsoy castings.
Nyob rau hauv lub xyoo tsis ntev los no, nyob rau hauv lub teeb ntawm kev ua tau zoo thiab muaj peev xwm ntawm phosphate inorganic binders, cov kws tshawb nrhiav tau pib tshawb lawv cov ntawv thov hauv Casting. Ib yam li ntawd, vim muaj kev tiv thaiv ib puag ncig thiab kev tsim kho thiab kev siv cov kev tshawb fawb tau dhau los ua cov khoom siv tam sim no, txhawm rau hloov cov khoom siv tam sim no thiab cov khoom siv Phenolic Resin Binders.