| 氮化铝陶瓷的注射成型排胶工艺 |
| 添加时间：2019/12/11 15:17:30 浏览次数： |
| 氮化铝陶瓷的注射成型排胶工艺：由于注射成型坯体中有机物含量较高，排胶过快会造成坯体开裂、起泡、分层和变形，因此，如何快速高效排胶成为注射成型的一大难点。排胶工艺包括热排胶和溶剂排胶。起初主要采用热排胶，简单地把有机物烧除，这种方式能耗高、时间长。为了提高排胶效率，一些学者探索了溶剂排胶的工艺。由于粘结剂中石蜡占比重较大，溶剂排胶主要是将坯体中的石蜡溶解，其他粘结剂仍能维持坯体形状。溶剂排胶结合热工艺排胶可以大大缩短排胶时间。 Aluminum nitride ceramic injection molding rubber discharge process: because of the high content of organic matter in the injection molding body, too fast rubber discharge will cause the body cracking, blistering, stratification and deformation, therefore, how to quickly and efficiently rubber discharge becomes a major difficulty of injection molding. The process includes hot discharge and solvent discharge. At first, it mainly used hot rubber discharge to simply burn the organic matter. This way has high energy consumption and long time. In order to improve the efficiency of discharging, some scholars have explored the technology of solvent discharging. Due to the large proportion of paraffin in the binder, the solvent discharge is mainly to dissolve the paraffin in the green body, and other binders can still maintain the shape of the green body. The combination of solvent and thermal process can greatly shorten the time of discharging. |
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