Selected Patents Related to Thermal Spraying
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elected Patents Related to Thermal Spraying Issued Between July 1, 2013 and September 30, 2013 Prepared by Jirˇı´ Mateˇjı´cˇek, Institute of Plasma Physics, Czech Republic; jmatejic @ipp.cas.cz. Adapted from Thomson Reuters Scientific. CA denotes Canadian, CN denotes Chinese, DE denotes German, EP denotes European, GB denotes British, RO denotes Romanian, TW denotes Taiwanese, US denotes United States patents. The information has the following format: Title, Abstract, Patent number, Inventors, Company, Issued/Filed dates.
Applications Composite Metal Carbide Wear-Resistant Coating and Preparation Process Thereof. The invention relates to a composite metal carbide wear-resistant coating and a preparation process thereof, and belongs to a wear-resistant coating and a preparation process thereof. The composite metal carbide wearresistant coating consists of adhesive coated tungsten carbide and other carbides, wherein the adhesive coated tungsten carbide has the grain size of WC-Co or WC-Ni; and the other carbides comprise chromium carbide, vanadium carbide, iron carbide, titanium carbide, and the like. The preparation process comprises the following steps of: mixing the adhesive coated tungsten carbide and one or more kinds of the carbide powder; and performing spray coating (welding) or plasma spray coating (welding) on the surface of a medium-carbon steel part through supersonic flame to form the wear-resistant coating, wherein the carbon content of the medium-carbon steel is 0.35-0.55 wt.%; the medium-carbon steel is subjected to the thermal refining state of quenching and high-temperature tempering; and the supersonic flame spray coating (welding) or plasma spray coating (welding) process sequentially comprises steps of performing sand blasting and rust removal on the surface of the medium-carbon steel, spraying a Ni-5%Al alloy adhesive coating and spraying a composite carbide wearresistant coating. The composite carbide wear-resistant coating has Vickers hardness (HV) of 1200-1800, bonding force of more than 60 MPa, and high mechanical property, wear resistance and corrosion resistance.
Journal of Thermal Spray Technology
CN 102418065: Chengjin Shen, Hong Zhang, Jian Zhang, Ruiyong Ma, and Jing Zhou. Company: Univ China Mining, Kunshan Sergeant Equipment Industry Co. Ltd. Issued/Filed: 2013-0703/2011-12-12. Method for Preparing Aluminium Oxide Ceramic Coating on Surface of Resin Material. The invention discloses a method for preparing an aluminium oxide ceramic coating on the surface of a resin compound material by combining microarc oxidation and plasma spraying, so as to improve the usability of the resin compound material. The method successively comprises the following steps of: (a) scattering aluminium powder on the outermost layer of a curing material while curing the resin compound material, and placing a die for curing; (b) performing sand blast treatment on the resin compound material by a sand-blast machine to enable the surface roughness of the resin compound materialto meet the formula: Ra = 5-10 lm;
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