Patent ID: 9630241
Date: 2017-04-25
CPC Classifications: B22C

Claim:
1. Device for hardening foundry cores of a sand-containing molding material, wherein the device is adapted in order to subject the core, for its hardening, in a core molding tool, to a catalyst vapor/carrier gas mixture and subsequently to a pressurized air stream, each at a predetermined pressure and a predetermined temperature, wherein the device comprises: a heating and mixing stage ( wherein the heating and mixing stage ( wherein the liquid organic catalyst fed to the heating and mixing stage ( wherein the heating and mixing stage ( wherein, for a time-controlled flushing after the passage of the catalyst vapor/carrier gas mixture through the sand-containing molding material, the core molding tool, by a fourth line (L characterized in that the device has no preheater that heats the pressurized air ( a first cutoff valve ( a second cutoff valve (