Manufacturing method of reusable metal/polymer composite structure shielding tool for thermal spraying
A composite structure and manufacturing method technology, applied in metal material coating process, coating, melt spraying and other directions, can solve the problems of poor shielding effect of heat-resistant tape, good shielding effect of metal shielding tooling, and difficulty in long-term repeated use.
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Embodiment 1
[0030] The assembly position of the locomotive axle and wheel set is sprayed with Mo coating by wire flame spraying. The locomotive axle and the wheel set are interference fit. When the vehicle travels to a certain number of miles, the wheel set will wear out. Therefore, it is necessary to carry out machining finishing after the wheel set is disassembled. During the disassembly process, the wheel set will cause local strain on the surface of the axle, causing more than 30% of the axles to fail during the disassembly process, resulting in huge economic losses. Taking advantage of the relatively high hardness and self-lubricating properties of Mo, the Mo coating prepared by thermal spraying at the assembly position of the axle wheel can ensure that the wheel set will not cause damage to the axle body during the disassembly process, significantly reducing the failure probability of the axle and avoiding major damage. Economic losses.
[0031]First, according to the size of the a...
Embodiment 2
[0033] Oil exploration well probe shell supersonic flame spraying WC10Co4Cr wear-resistant coating. The oil exploration well probe is a device that uses the radioactive source inside the exploration well probe to measure the abundance and reserves of oil after the exploration well is drilled. The probe will rub against the rock well wall in the process of going downhole and uphole, which will cause the wear on the surface of the probe. Since the depth of a single well reaches more than 3000 meters, the wear determines the service life of the probe shell. Therefore, it is possible to prepare a wear-resistant coating on the surface of the probe shell. Significantly improve its service life. Supersonic flame spraying of WC-based cermets has excellent wear resistance, but supersonic flame has the characteristics of high energy density, high temperature, and high impact velocity, which will cause serious burning of heat-resistant tapes. The oil exploration well probe housing is ma...
Embodiment 3
[0036] Atmospheric plasma spraying on the flange surface of titanium alloy to prepare NiCrAl anti-oxidation primer. Ceramic coatings have the characteristics of low thermal conductivity, high hardness, and high melting point, so they have important applications in the fields of heat insulation, wear resistance, and high temperature resistance. However, due to the large difference in thermophysical properties between the metal workpiece substrate and the ceramic coating material, usually a layer of metal anti-oxidation primer is prepared on the surface of the metal workpiece, and then a ceramic coating is prepared on the surface of the metal primer to strengthen the ceramic layer and ceramic coating. The bonding strength of the metal workpiece is improved, and the service life of the coating is improved by using the anti-oxidation properties of the primer. Using the titanium alloy flange for marine environment as the base material, the NiCrAl primer layer and AT13 ceramic layer...
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