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Method for producing molded article by sintering
The invention relates to a method for producing a molded article by sintering, comprising the following steps: a. Providing a starting material comprising a metal and/or ceramic powder, b. Molding the starting material, if the starting material also contains a binder material, or by introducing the binder material into a powder bed formed from the starting material, thereby forming a green part from the starting material, c, the green part is subjected to chemical degumming and/or solvent-based degumming to obtain a brown part, d, the brown part obtained in step c is subjected to thermal degumming, and e, the brown part is compacted into a molded part by sintering. In this process, after step c and before step d, the brown article is treated with a softener which can soften the binder material still present in the brown article. Before step d, after the treatment with the softener, the static pressure process is carried out by applying a medium under elevated pressure. As a result, an increase in the material density after the sintering step is achieved.
一种通过烧结来制造模制品的方法，包括以下步骤：a、提供包含金属和/或陶瓷粉末的原始材料，b、通过如果原始材料也含有粘结剂材料对原始材料进行模制或者通过将粘结剂材料引入由原始材料形成的粉末床，从而由原始材料形成生坯件，c、对生坯件进行化学脱胶和/或基于溶剂脱胶来获得褐色件，d、对在步骤c获得的褐色件进行热脱胶，e、通过烧结来将褐色件压实成模制品。在该过程中，在步骤c之后且在步骤d之前该利用软化剂处理褐色件，该软化剂可以软化褐色件中仍然存在的粘合剂材料。在步骤d之前在利用所述软化剂处理之后，通过在增高的压力下施加介质，来进行静压工艺。由此实现烧结步骤之后的材料密度的提高。
Method for producing molded article by sintering
The invention relates to a method for producing a molded article by sintering, comprising the following steps: a. Providing a starting material comprising a metal and/or ceramic powder, b. Molding the starting material, if the starting material also contains a binder material, or by introducing the binder material into a powder bed formed from the starting material, thereby forming a green part from the starting material, c, the green part is subjected to chemical degumming and/or solvent-based degumming to obtain a brown part, d, the brown part obtained in step c is subjected to thermal degumming, and e, the brown part is compacted into a molded part by sintering. In this process, after step c and before step d, the brown article is treated with a softener which can soften the binder material still present in the brown article. Before step d, after the treatment with the softener, the static pressure process is carried out by applying a medium under elevated pressure. As a result, an increase in the material density after the sintering step is achieved.
一种通过烧结来制造模制品的方法，包括以下步骤：a、提供包含金属和/或陶瓷粉末的原始材料，b、通过如果原始材料也含有粘结剂材料对原始材料进行模制或者通过将粘结剂材料引入由原始材料形成的粉末床，从而由原始材料形成生坯件，c、对生坯件进行化学脱胶和/或基于溶剂脱胶来获得褐色件，d、对在步骤c获得的褐色件进行热脱胶，e、通过烧结来将褐色件压实成模制品。在该过程中，在步骤c之后且在步骤d之前该利用软化剂处理褐色件，该软化剂可以软化褐色件中仍然存在的粘合剂材料。在步骤d之前在利用所述软化剂处理之后，通过在增高的压力下施加介质，来进行静压工艺。由此实现烧结步骤之后的材料密度的提高。
Method for producing molded article by sintering
通过烧结制造模制品的方法
SPEER JOHANNES JERONIMO (author) / JAEKEL MANFRED (author)
2023-07-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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