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    • 34. 发明授权
    • Method for the powder pack coating of hollow bodies
    • 中空体粉末包装方法
    • US5215785A
    • 1993-06-01
    • US788093
    • 1991-11-05
    • Michael StrasserHeinrich WalterHorst Pillhoefer
    • Michael StrasserHeinrich WalterHorst Pillhoefer
    • C23C10/34
    • C23C10/34
    • A method for the powder pack coating of hollow structural components is performed with spherical powder particles of a donor metal in which the hollow component is embedded. During the embedding, the component is subjected to a tumbling motion about several spatial axes to fill all cavities in the component. After the powder pack coating process the cavities of the component are cleared of any excess powder particles under the action of a gas stream. This method is suitable especially for coating engine blades having cooling ducts and cooling air holes, such as turbine blades. The effect of the forced air flow through the internal cavities for the removal of excess powder out of the hollow component is enhanced by simultaneously vibrating the component.
    • 中空结构部件的粉末包装涂布方法是用嵌入中空部件的供体金属的球形粉末颗粒进行的。 在嵌入期间,组件经受围绕几个空间轴的滚动运动以填充部件中的所有空腔。 在粉末包装涂布过程之后,组分的空腔在气流的作用下被清除任何多余的粉末颗粒。 该方法尤其适用于具有冷却管道和冷却气孔的发动机叶片,例如涡轮叶片。 通过内部空腔的强制空气流动,通过同时振动组件来增强通过中空部件去除多余粉末的效果。