Sleeves, their preparation, and use

Details Sleeves, their preparation, and use Sleeves, their preparation, and use

B - Operations, Transporting

22

C

22/124

B22C 9/08 (2006.01)

Patent

CA 2221778

This invention relates to exothermic and/or insulating sleeves, their method of preparation, and their use. The sleeves are prepared by shaping a sleeve mix comprising (1) a sleeve composition capable of providing a sleeve, and (2) a chemical binder. The sleeves are cured in the presence of a catalyst by the cold-box or no-bake curing process. The invention also relates to a process for casting metal parts using a casting assembly where the sleeves are a component of the casting assembly. Additionally, the invention relates to the metal parts produced by the casting process.

Cette invention se rapporte à des manchons exothermiques et/ou isolants, à leur procédé de préparation et à leur utilisation. On prépare ces manchons en formant un mélange comprenant (1) une composition servant à produire un manchon, et (2) un liant chimique. Les manchons sont durcis en présence d'un catalyseur par le processus de durcissement en boîte froide ou sans cuisson. Cette invention se rapporte également à un procédé de coulage de pièces métalliques au moyen d'un ensemble de coulage, les manchons constituant un composant de cet ensemble. L'invention se rapporte de plus à des pièces métalliques obtenues par ce procédé de coulage.

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