METHOD FOR FORMING A POROUS COATING ON A RELIEF SURFACE Russian patent published in 2022 - IPC C23C4/134 C23C4/02 

FIELD:

SUBSTANCE: invention relates to a method for spraying three-dimensional capillary-porous (CP) coatings on a pre-formed relief surface and can be used in engineering practice to increase the efficiency of heat exchange on the surface of heated nodes under conditions of changing the aggregate state of the refrigerant, for forming the surfaces of catalyst carriers and for cleaning liquids. The method for forming a metal porous coating on the relief surface of metal parts operating under conditions of changing the aggregate state of the refrigerant includes the formation of a relief on the surface of the part by creating slots in two mutually perpendicular directions, while in one direction the lateral surfaces of the relief are inclined at angles from 50 to 80° to its support surface, and the plasma coating in the form of ridges and depressions is sprayed at an angle of 90° to the support surface of the relief.

EFFECT: invention is aimed at increasing the value of the normalized contact surface.

1 cl, 4 ex, 4 dwg