Graphite boat dish plasma spraying production line for zirconia coating.
A grooved graphite boat comprising a plurality of W-shaped, bidirectional inclined grooves with two opposing groove surfaces and bottom support protrusions, as well as a bottom surface, an upper end face, inner side surfaces, outer side surfaces, and a stop flange opposite the upper end face. At least one venting channel is provided on each of the two opposing groove surfaces and on the upper surface, and each intersection between the bottom support protrusion and the two opposing groove surfaces is equipped with a corner-protection groove.
The thin graphite boat dish consists of a boat-dish body with multiple carrier slots W arranged on one side, shims, and locating pins with a certain degree of taper. The boat-dish body is provided with recesses at both ends parallel to the carrier slots W. The protruding platform at the lower end of the shim fits precisely into these recesses, while the locating pins pass through the positioning holes in the middle of the recesses and the positioning holes in the middle of the protruding platform at the lower end of the shim.
Zirconia: it is white in color and has a melting point of 2860℃. It is used for the preparation of protective and thermal-insulating coatings on parts subjected to high-temperature gas erosion.
Applications: graphite plate trays, graphite boat dishes, electronic ceramic support plates, plasma-oxidized zirconia ceramics, and other high-temperature resistant components.
