VERFAHREN ZUM EINSPEISEN VON PARTIKELN EINES SCHICHTMATERIALS IN EINEN THERMISCHEN SPRITZVORGANG
    4.
    发明公开
    VERFAHREN ZUM EINSPEISEN VON PARTIKELN EINES SCHICHTMATERIALS IN EINEN THERMISCHEN SPRITZVORGANG 有权
    一种用于在热喷涂工艺料涂层材料的颗粒

    公开(公告)号:EP2066828A2

    公开(公告)日:2009-06-10

    申请号:EP07820641.4

    申请日:2007-09-27

    IPC分类号: C23C24/04

    摘要: The invention relates a method in which particles (25) are fed to a thermal spraying process in order to form a layer (24) on a part (21). In the thermal spraying process, the particles (25) are entrained by a carrier gas flow (23) and are deposited on a part (21) that is to be coated. According to the invention, the particles are dispersed in a liquid or solid additive before being introduced into a supply pipe (18) that extends into the thermal spraying device, and the additive is transferred into a gaseous state in the carrier gas flow after being discharged from the supply pipe. Hence, a liquid additive evaporates while a solid additive sublimates such that the particles (25) are individualized in the carrier gas flow. Dispersing the particles in the additive advantageously makes it easier to accurately meter the particles and prevents the particles from agglomerating, thus allowing improved layers to be deposited because the carrier gas flow is more homogeneous. Transferring the additive into a gaseous state prevents the additive from being deposited in the layer.