mixing of mold materials to produce molds for the foundry industry, molding for the foundry industry, use of at least one amino acid in a mix of mold materials for the foundry industry, process for producing a mix of mold materials, process to produce a mold for the foundry industry and kit to produce a mix of mold materials

摘要

The present invention relates to a mixture of mold materials for producing molds for the foundry industry, in particular for producing foundry molds, cores or feeders for the foundry industry, comprising (a) one or more pourable refractory fillers. (b) a binder system comprising (i) formaldehyde, a formaldehyde donor and / or formaldehyde pre-condensates, and (ii) an amino acid. Additionally, the present invention relates to the use of amino acids in a mixture of mold materials to produce mixtures of mold materials for the foundry industry or to produce moldings for the foundry industry to a process for producing a mixture of materials. and a process for producing a mold for the foundry industry.