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    • 2. 发明申请
    • BINDERS FOR CORES AND MOLDS
    • 关键词和词条
    • WO1997049646A1
    • 1997-12-31
    • PCT/US1997008611
    • 1997-05-23
    • BORDEN CHEMICAL, INC.JOHNSON, Calvin, K.TSE, Kwok-tuenZARETSKIY, Leonid, S.ALGAR, Brian, E.
    • BORDEN CHEMICAL, INC.
    • C04B28/26
    • B22C1/185B22C1/18B22C1/188C04B24/003C04B24/045C04B24/32C04B28/34C04B2111/0087C04B2111/00939C04B12/04C04B14/02C04B22/062C04B40/0028C04B40/06C04B2103/10C04B2103/402
    • No-bake inorganic binder compositions for binding particulate material and methods for curing such inorganic binders. The inorganic binder compositions are composed of silicate and phosphate components. The no-bake compositions further contain curing catalyst such as a catalyst selected from the group consisting of aliphatic carbonates, cyclic alkylene carbonates, aliphatic carboxylic acid esters, cyclic carboxylic acid esters, phosphate esters and mixtures thereof. The composition produces a binder having the advantageous strength properties of a silicate binder system with the water breakdown properties of a phosphate binder system. Thus, relative to an all-silicate binder system, the present invention has improved mechanical shakeout and improved water collapsibility. Also, relative to conventional all-phosphate binder system, the present invention has superior hot strength, i.e., the foundry cores and molds do not soften at elevated temperatures. Methods of making and using the binder compositions and the resulting products are of particular interest to the foundry art.
    • 用于粘合颗粒材料的无烘烤无机粘合剂组合物和用于固化这种无机粘合剂的方法。 无机粘合剂组合物由硅酸盐和磷酸盐组分组成。 无烘焙组合物还含有固化催化剂,例如选自脂族碳酸酯,环状碳酸亚烷基酯,脂族羧酸酯,环状羧酸酯,磷酸酯及其混合物的催化剂。 该组合物产生具有磷酸盐粘合剂体系的水分解性质的硅酸盐粘合剂体系的有利强度性质的粘合剂。 因此,相对于全硅酸盐粘合剂体系,本发明具有改进的机械振动和改善的水可收缩性。 此外,相对于常规的全磷酸盐粘合剂体系,本发明具有优异的热强度,即,铸造芯和模具在升高的温度下不软化。 制造和使用粘合剂组合物和所得产品的方法对于铸造技术是特别有意义的。
    • 3. 发明申请
    • SALT-BASED CORES, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF
    • 基于SALT核心,用于生产及其用途
    • WO2013152851A3
    • 2014-03-20
    • PCT/EP2013001054
    • 2013-04-10
    • EMIL MUELLER GMBH
    • HARTIG THORSTEN
    • B22C1/18B22C9/10
    • B22C9/105B22C1/02B22C1/167B22C1/18B22C1/185
    • Cores that are inserted into the mould during the die casting of workpieces from metal in order to keep the cavities provided in the workpieces free during the filling of the moulds with the melt have to meet demanding requirements with regard to their dimensional stability and suitability for removal from the cavities. Therefore, salt-based cores which can be produced by moulding and compressing a core material mixture are provided according to the invention, the core materials thereof being selected from at least one salt, at least one binder system comprising a combination of binder/binding agent and possibly auxiliary substances such as additives, fillers, wetting agents and catalysts, wherein the salt, the binder system and the possibly used auxiliary substances of the core material mixture are inorganic and these core materials are soluble with water as the solvent.
    • 到被插入到在金属部件的压铸模具,以保持在工件的空腔所设想的与熔体模具的填充期间晶核,高的要求从腔体在其形状的稳定性和可除去性方面取得。 因此根据这可以通过模制和压缩的芯材料混合物,其芯是由至少一种盐中选择的材料来制造本发明所提供的盐的基础上核,粘合剂/粘合剂和任选的助剂,例如添加剂的组合中的至少一种粘合剂体系, 填充剂,润湿剂和催化剂,其中,所述盐,所述粘合剂体系和赋形剂任选地使用,芯材料混合物是无机和这些核心材料是可释放地与水作为溶剂。