利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN108218380A 生产具有分级孔隙率的绝热预成型件的装置和方法 无效 - 撤回

生产具有分级孔隙率的绝热预成型件的装置和方法
摘要：
本发明提供了一种生产具有用于车辆的排气处理部件的分级孔隙率的绝热预成型件的方法。该方法包括获得具有第一直径的第一粒状绝热材料、具有小于该第一直径的第二直径的第二粒状绝热材料、无机粘合剂和水。该方法进一步包括生产包含该第一粒状绝热材料、该第二粒状绝热材料、该无机粘合剂和水的浆料。将该浆料引入到具有至少一个被适配用于真空抽吸的表面的模具内。使用真空抽吸从该模具中排出该浆料的液相以产生潮湿预成型件。该潮湿预成型件具有分级孔隙率，使得比该第一绝热材料更大浓度的该第二绝热材料邻近于该至少一个表面。将该潮湿预成型件加热以生产该绝热预成型件。
摘要（英）：

The present disclosure provides a method of producing an insulation preform having graded porosity for an exhaust treatment component of a vehicle. The method includes obtaining a first granular insulating material having a first diameter, a second granular insulating material having a second diameter less than the first diameter, an inorganic binder, and water. The method further includes producing slurry comprising the first granular insulating material, the second granular insulating material, the inorganic binder, and water. The slurry is introduced into a mold having at least one surfaceadapted for vacuum extraction. A liquid phase of the slurry is evacuated from the mold using vacuum extraction to produce a moist preform. The moist preform has graded porosity such that a greater concentration of the second insulation material is adjacent to the at least one surface than the first insulating material. The moist preform is heated to produce the insulation preform.

0/0