Ester Ester curedcured sodiumsodium silicatesilicate

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Ester Ester curedcured sodiumsodium silicatesilicateA A valid valid processprocess forfor sandsandreclamationreclamation5959ththIn dianIndian FoundryFoundry CongressCongressFebFeb 1111--13, 201113, 2011ChandigarhChandigarh -- IndiaIndiaAuthorAuthor Ing. Cozzi CarloIng. Cozzi CarloSales Manager Sales Manager Sogemi EngineeringSogemi EngineeringMilan Milan -- ItalyItalySodiumSodium silicatesilicate binderbinder It s a binder based on a module with SiO2-Na2O ratiovarying from 2 to The most popular application method consists ofhardeningmouldsandcoresbyinjectionofCO 2gashardeningmouldsandcoresbyinjectionof CO2gas Another possibility is the addition of a liquid hardener, generally organic esters , in a normal continuous mixer In the presence of aqueous silicate, CO2gas, or acid, released by hydrolysis of Ester causes precipitation of a silica gel that, due to a further loss of water.

Ester Ester curedcured sodiumsodium silicatesilicate AA validvalid processprocess forfor sandsand reclamation 5599 tthh IndianIndian Foundry Foundry CongressCongress FebFeb 1111- …

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