B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
B22C 1/22 (2006.01)
Patent
CA 2358906
An embodiment of the present invention provides a method for improving the tensile strength of foundry cores and molds. More particularly, an embodiment of the present invention provides an improved binder for foundry cores and molds that include a fluoride bearing acid in combination with an inorganic silicon compound. Alternately, the improved binder may include a fluoride bearing acid in combination with a boron compound. In a preferred embodiment, a modified part 1 binder component includes a combination of hydrofluoric acid and an inorganic silicon compound.
Selon une variante, l'invention concerne un procédé relatif à l'amélioration de la résistance à la traction de noyaux et moules de fonderie. Plus précisément, une variante de l'invention concerne un liant amélioré pour noyaux et moules de fonderie, qui comprend un acide au fluor combiné avec un composé au silicium inorganique. Le liant peut aussi comprendre un acide au fluor combiné avec un composé au bore. En mode de réalisation préféré, un composant modifié de partie 1 du liant comprend une combinaison d'acide fluorhydrique et un composé au silicium inorganique.
Laitar Robert A.
Teeter Brian K.
Tse Kwok-Tuen
Zaretskiy Leonid S.
Borden Chemical Inc.
Ha-International Llc
Macrae & Co.
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