11results about "Molten casting coating" patented technology

In order to provide a structural component, in particular as a lightweight component, which has a simple and lightweight construction, has high strength and / or stiffness and can be produced in a cost-effective manner, the invention proposes that the structural component comprises at least one insert which is at least partially cast or injection-molded with a coating, wherein the at least one insert is formed at least in sections from wood and / or wood material, and wherein the at least one insert forms a reinforcing structure and / or a stiffened structure.

The invention relates to a method for coating a workpiece surface (133), in which an atmospheric plasma beam (26) is generated by means of a plasma nozzle (2), a coating material is supplied to the generated plasma beam (26) and the plasma beam, with the coating material, is directed to the workpiece surface (133) to be coated, wherein the coating material is supplied to the generated plasma beam (26) in that a filament (34) is supplied to the generated plasma beam (26), said filament containing or consisting of the coating material. The invention also relates to a device (100, 200, 300, 400) for coating a workpiece surface (133), having a plasma nozzle (2) which is designed to generate an atmospheric plasma beam (26), wherein the plasma nozzle (2) has a nozzle opening (6) from which the plasma beam (26) exits during operation, and having a filament supply element (124) which is arranged and designed to supply a filament (34) to the generated plasma beam (26) during operation, and to a use of the device (100, 200, 300, 400).

The invention relates to an in-situ self-forming method of a liquid metal heat conduction interface in micro base station assembly, and belongs to the technical field of microelectronic device assembly and heat management. The method aims at solving the technical problems that the wettability of liquid metal on a micro base station substrate is poor, so that a heat conduction interface is not uniform, the liquid metal is prone to oxidation, and the heat conduction performance and stability are affected. According to the technical scheme, the method comprises the steps of performing plasma treatment on a substrate to increase surface energy; placing the processed substrate in a sealed cavity, and introducing inert gas to form a low-oxygen environment; liquid metal is deposited to an effective area of a substrate through a micro-droplet jetting device, ultrasonic vibration is synchronously applied in the whole deposition process, and the liquid metal is promoted to spread and surface oxides are removed through the shearing force and the cavitation effect of the ultrasonic vibration; and finally, the substrate is heated and cured, so that the liquid metal is converted into a solid state, and a stable heat-conducting interface is formed. The method is mainly used for constructing an efficient and reliable heat conduction interface in compact electronic equipment such as a micro base station.

The invention relates to a structural component, in particular for use as a lightweight component, which has a simple and lightweight structure and a high strength and / or rigidity and can be produced cost-effectively, wherein said structural component comprises an insert body, which is encapsulated or overmoulded with a sheathing at least in regions, wherein the at least one insert body is formed from wood and / or a wood material at least in regions, and wherein the at least one insert body forms a reinforcing and / or stiffening structure.

A manufacturing method of carbon fiber profiled bodies for aerospace, aviation and fire fighting is provided, relating to the technical field of carbon fiber preparation, and including the following steps: uniformly winding carbon fiber cloth around an exterior of a core mould and opening a liquid drainage hole; heating a carbon fiber shell, melting the core mould, and discharging a melted liquid of the core mould through the liquid drainage hole; allowing a non-stressed wall of the carbon fiber shell to be in contact with liquid nitrogen and prefabricating a layer of molten metal liquid on a stressed wall of the carbon fiber shell.

To provide a toroidal propeller whose shape can be optimized according to the type and size of mobility such as a ship, and which can be increased in size at low cost.SOLUTION: A system for manufacturing a toroidal propeller for mobility, comprising a 3D printer of a wire DED type, wherein the 3D printer is capable of forming a toroidal propeller having a toroidal shape.SELECTED DRAWING: Figure 6

The present disclosure discloses a method for preparing a copper-plated titanium alloy wire reinforced aluminum-based composite material, including steps of: etching a cleaned TC4 wire; then electroplating a copper layer to obtain a copper-plated titanium alloy wire; performing heat treatment with two-step slow cooling on the copper-plated titanium alloy wire by using a heat treatment furnace; and, cladding a single-layer and single-pass ER5356 aluminum alloy on an aluminum alloy substrate by an arc additive manufacturing technology, then flatly spreading the heat-treated copper-plated titanium alloy wire in the center of the cladding layer to form an intermediate layer, and finally cladding a single-layer and single-pass ER5356 aluminum alloy matrix on the surface of the intermediate layer. In the present invention, by using copper as a transition interlayer of the aluminum-titanium interface, the generation of brittle intermetallic compounds between aluminum and titanium can be completely suppressed.

The invention provides a method for casting a copper alloy layer in a plunger hole of a cylinder body. The method comprises the following steps: forming a copper melting pool between the periphery of a spline area of a steel substrate blank and the outer wall of the cylinder body; vertically placing the steel substrate blank with the spline area facing upwards and the flow distribution surface facing downwards; plunger steel pins are pressed into plunger holes in the steel base body blank respectively; the copper alloy block is placed in a copper melting pool on the steel base body blank to be sintered and cast; after casting and discharging the steel matrix blank, cooling from bottom to top; continuously cooling until the height of the blackening part of the steel matrix blank accounts for 2 / 3-3 / 4 of the total height, and finishing cooling; and tempering. According to the method, bottom-to-top cooling is adopted, bottom-to-top gradient cooling is formed, the cooling speed of the plunger hole copper alloy layer is slowed down, and cracks of the plunger hole copper alloy layer are avoided. Therefore, the formed plunger hole copper alloy layer has no casting defect.

The invention relates to the technical field of preparation of wear-resistant cladding materials, in particular to a wear-resistant cladding material for special repair and a preparation method thereof.The method comprises the steps that cladding raw materials are selected and pretreated, ceramic wear-resistant particles and a metal combined matrix are obtained, and the actual surface roughness is obtained by detecting the surface roughness of the ceramic wear-resistant particles. Judging whether the surface roughness is qualified or not based on the surface roughness threshold interval; carrying out metal coating on the qualified ceramic wear-resistant particles to prepare metal-coated ceramic particles, and detecting the uniformity and the average thickness of a metal film of the metal-coated ceramic particles to determine a complete embodied value of the metal film; and the metal bonding matrix is smelted, after a liquid metal bonding matrix is obtained, the liquid metal bonding matrix is mixed with the metal-coated ceramic particles, the adhesive force of the formed cladding coating and the distribution uniformity of the metal-coated ceramic particles are detected, and the smelting temperature or mixing parameters are adjusted based on the detection result. By adjusting the surface roughness and the distribution uniformity of the metal-coated ceramic particles, the problem of wear resistance of the wear-resistant cladding material is solved.