-
公开(公告)号：US5854379A
公开(公告)日：1998-12-29
申请号：US775884
申请日：1997-01-02
申请人： Takemori Takayama , Yoshitaka Ohyama , Kazuo Okamura , Masato Miyake , Katsuyoshi Saito , Hiroshi Ono
发明人： Takemori Takayama , Yoshitaka Ohyama , Kazuo Okamura , Masato Miyake , Katsuyoshi Saito , Hiroshi Ono
IPC分类号： B22F1/00 , B22F3/10 , B22F3/22 , C08G73/10 , C08K5/3477
CPC分类号： B22F3/225 , B22F1/0059 , B22F3/1021 , B22F2001/0066 , B22F2998/00
摘要： A low-cost thermal decomposition degreasing method capable of drastically reducing the time required for a degreasing process which involves heating, vaporization and thermal decomposition, while assuring the shape retention property of an injection molded product during degreasing. The degreasing process comprises: (i) a first step wherein a molded product placed under a reduced pressure less than or equal to atmospheric pressure is heated at a temperature lower than the melting point of a thermoplastic binder so that the thermoplastic binder partially evaporates by 5 wt % or more, and then the molded product is further heated at a temperature lower than higher one of the melting points of a more volatile organic compound and a thermoplastic resin whereby the thermoplastic binder further evaporates by 10 wt % or more, and wherein the final temperature is set to 200.degree. C. or less; and (ii) a second step wherein the molded product is heated to a temperature higher than or equal to the highest one of the melting points of thermoplastic binder components at a pressure higher than or equal to atmospheric pressure in an atmosphere of gas inert relative to a powder material constituting the molded product.
摘要翻译： 一种低成本的热分解脱脂方法，其能够显着减少脱脂过程所需的时间，其中包括加热，蒸发和热分解，同时确保注射成型产品在脱脂过程中的形状保持性能。 脱脂方法包括：（i）第一步骤，其中在低于或等于大气压的减压下放置的模塑产品在低于热塑性粘合剂的熔点的温度下加热，使得热塑性粘合剂部分蒸发5 wt％以上，然后在比挥发性有机化合物和热塑性树脂的熔点高的温度下进一步加热成型体，由此热塑性粘合剂进一步蒸发10重量％以上，其中， 最终温度设定在200℃以下; 和（ii）第二步骤，其中在气体惰性相对于气体的气氛中，将模制产品加热到高于或等于热塑性粘合剂组分的最高熔点的压力，其压力高于或等于大气压 构成模塑产品的粉末材料。
-
2.发明授权
公开(公告)号：US5877270A
公开(公告)日：1999-03-02
申请号：US775896
申请日：1997-01-02
CPC分类号： B22F3/225 , B22F3/1025 , B22F2001/0066 , B22F2998/00
摘要： A water solvent extraction degreasing method capable of reducing degreasing time without consideration of abrupt decomposition/vaporization and swelling caused by heat. An organic binder is removed from a molded product that is produced by a powder material mixed with the organic binder and this organic binder contains at least one water-soluble organic compound and at least one water-insoluble thermoplastic resin. The degreasing step of this method includes a water solvent extraction step for extracting the water-soluble organic compound from the organic binder contained in the molded product, using water as a solvent.
摘要翻译： 一种能够减少脱脂时间而不考虑由热引起的突然分解/蒸发和膨胀的水溶剂萃取脱脂方法。 从与有机粘合剂混合的粉末材料制成的成型体中除去有机粘合剂，该有机粘合剂含有至少一种水溶性有机化合物和至少一种水不溶性热塑性树脂。 该方法的脱脂步骤包括使用水作为溶剂从包含在成型产品中的有机粘合剂中提取水溶性有机化合物的水溶剂萃取步骤。
-
3.发明授权Binder for use in metal powder injection molding and debinding method by the use of the same 失效用于金属粉末注射成型和脱粘方法的粘合剂通过使用相同
公开(公告)号：US5627258A
公开(公告)日：1997-05-06
申请号：US403199
申请日：1995-03-13
CPC分类号： B22F3/225 , B22F1/0059 , B22F3/22 , C08K3/08 , C08K5/16 , B22F2001/0066 , B22F2998/00
摘要： By the use of a binder comprising (a) 40 to 70 wt % of a water-soluble amide material and/or water-soluble amine material and (b) 25 to 60 wt % of a polyamide resin component substantially composed of a polyamide resin material having 10 carbon atoms or more on average between amido groups, a molded article is produced by metal powder injection molding.From such a molded article, the water-soluble amide material and/or water-soluble amine material is eluted by a water-based solvent and then, the polyamide resin component is removed by heating.
摘要翻译： 通过使用包含（a）40至70重量％的水溶性酰胺材料和/或水溶性胺材料的粘合剂和（b）25至60重量％的基本上由聚酰胺树脂组成的聚酰胺树脂组分 在酰胺基之间平均具有10个或更多个碳原子的材料，通过金属粉末注射成型制备模塑制品。 从这样的成型品中，通过水性溶剂洗脱水溶性酰胺物质和/或水溶性胺物质，然后通过加热除去聚酰胺树脂成分。
-
-
搜索结果
3 条记录 (耗时 0.019 秒)
