Core material

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B - Operations, Transporting

22

C

B22C 1/02 (2006.01) B22C 1/22 (2006.01)

Patent

CA 2484263

The invention relates to a method for the production of cores and moulds for casting moulds, based on a base moulding material and an organic or inorganic binding agent and an additive. According to said method, pore-forming substances are used in order to dispense with the use of sizing substances and to prevent the formation of ribs.

L'invention concerne un procédé pour produire des noyaux et des moules de coulée, à partir d'un matériau de base pour le moulage, de liants organiques et inorganiques et d'un additif. Ledit procédé consiste à utiliser des matières porogènes pour éviter d'avoir recours à un enduit et pour empêcher la formation de gales.

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