7 results about "Thermal spraying" patented technology

An internal member of a plasma processing vessel includes a base material and a film formed by thermal spraying of ceramic on a surface of the base material. The film is formed of ceramic which includes at least one kind of element selected from the group consisting of B, Mg, Al, Si, Ca, Cr, Y, Zr, Ta, Ce and Nd. In addition, at least a portion of the film is sealed by a resin.

The invention discloses a rapid testing device for the toughness of a thermal spraying coating. The rapid testing device comprises a base, a guide groove, a pressurizing screw rod, a pressurizing block, a pressurizing rod and a supporting rod, wherein the base comprises two end faces which are connected oppositely and a connection face for connecting the two end faces; a groove body capable of containing a coating test piece is formed in the inner side of one end face; a guide groove with the direction which is the same as the connection direction of the two end faces is formed in the side wall of the groove body; two through holes which are symmetrically distributed on the two sides of the guide groove are formed in the side wall of the groove body; the through holes are used for accommodating the supporting rod; the pressurizing screw rod is mounted on the other end face; the pressurizing screw rod is fixedly connected with the pressurizing block; the pressurizing block is fixedly connected with the pressurizing rod; and the axial directions of the pressurizing block, the pressurizing rod and the supporting rod are the same and the pressurizing block, the pressurizing rod and the supporting rod are arranged in the guide groove. Meanwhile, the invention further provides a method for utilizing the device. According to the rapid testing device and the method, a phenomenon that a load is not uniform and the repeatability is poor can be avoided; and the binding force and the toughness of the thermal spraying coating are rapidly and simply tested.

The invention provides a manufacturing process for improving the wear resistance of the outer circular surface of the plunger. The process is carried out according to the following steps: 1. blanking and rough machining; 2. finishing groove; 3. groove roughness treatment; 4. thermal spraying nickel-cobalt-chromium alloy powder; 5. post-processing; 6. quality inspection. The invention can make the plunger surface with a thicker wear-resistant layer, high surface hardness, corrosion resistance, small friction coefficient, long wear-resistant life, and the plunger base has concave grooves to protect the thermal sprayed powder alloy layer under the impact state No peeling or peeling, it adopts the manufacturing process of thermal spraying alloy powder on the surface of the plunger, which thickens the wear-resistant layer on the surface of the plunger, and has special requirements on the chemical composition and chemical formula of thermal spraying nickel-cobalt-chromium alloy powder , so that the wear resistance of the plunger surface can meet the technical requirements of high-pressure and large-displacement plunger pumps in oil fields.

The invention provides a plasma processing chamber and a base manufacturing method therefor, and the chamber comprises a cavity. A base is disposed below the cavity and used for carrying a substrate. Reaction gas enters into the cavity from the top of the cavity, and is activated into plasma under the action of radio frequency heat, thereby achieving the processing of the substrate on the base. The method comprises the following steps: providing a base body and setting a cooling liquid channel on the base body; employing hot pressing to enable a first insulating layer to be pasted at the upper part of the base body, wherein the interior of the first insulating layer is provided with a heating apparatus; and employing hot spraying to make anticorrosion coating layer at the periphery of the base body. The chamber and method can prevent arc pollution and metal pollution, and cannot cause the melting of a material layer because of the pressure and temperature difference in a manufacturing process.

The present invention provides a zirconium oxide powder, a method for producing.the same, and a material for thermal spraying. The material for thermal spraying comprises a zirconium oxide powder comprising polyhedral particles each having not less than 6 faces, wherein the zirconium oxide powder has D50 of not less than 5 μm and less than 15 μm and a D90/D10 of less than 3. D10, D50 and D90 correspond to the point where the cumulative mass from the small-particle-diameter side reaches 10%, 50%, and 90% in the cumulative particle size distribution.