39results about "Molten casting coating" patented technology

The invention discloses a preparation process of a dual-material tappet with both wear resistance and toughness, and relates to the technical field of engine tappet manufacturing, the preparation process comprises the steps of matrix pretreatment, gradient heating, infiltration compounding, diffusion heat preservation, subsection cooling and finish machining, and a wear-resistant alloy material comprises the following chemical components in percentage by weight: 3.2-3.6% of C, 0.4-0.6% of Ni, 2.4-2.5% of Si, 0.9-1.3% of Cr, 0.6-0.9% of Mn and the balance of Fe and inevitable impurities. Mo is equal to 0.4%-0.65%, and Slt is equal to 0.1%, Plt; 0.1%, with the balance being Fe and inevitable impurities. Compared with the prior art, the method has the advantages that the performance can be flexibly matched according to different engine requirements; the comprehensive performance of the working face is remarkably improved by adopting an infiltration composite process; the strength and the toughness of the matrix are improved; the double-metal bonding strength is consistent; the cost of the infiltration composite process is lower than that of brazing; the matrix in the semi-molten state and the wear-resistant material form metallurgical bonding, and the bonding strength is higher; the combined steel and the gradient cooling process jointly improve the impact resistance.

The invention relates to a coated filament comprising an inorganic filament and a polymer composition comprising a thermoplastic polymer, wherein the polymer composition is in direct contact with the filament and wherein the coated filament has a length of less than 100mm. In another aspect, the invention relates to a coated filament, filament bundle or tape obtainable by a method for producing a coated filament comprising the steps of a. producing an uncoated inorganic filament from an inorganic melt, preferably an uncoated glass filament; b. providing a molten polymer composition comprising a thermoplastic polymer; c. applying the molten polymer composition to the uncoated inorganic filament, preferably by using a roller die, curtain coater die or a slit die and allowing the molten polymer composition to solidify and d. obtaining a coated filament comprising an inorganic filament which is coated with the polymer composition and wherein the inorganic filament is in direct contact with the polymer composition and e1. cutting the coated filament into pieces having a length of less than 100mm or e2 bundling a plurality of said coated filaments into a filament-bundle or a yarn and optionally cutting the filament bundle or yarn into pieces having a length of less than 100mm or f. bundling a plurality of said coated filaments into a filamentbundle or a yarn and g. producing a tape from the filamentbundle or from the yarn to produce a tape having a thickness from 0.2 up to and including 2 mm, a width from 10 up to and including 500mm and wherein the tape has a length / width ratio of above 10.

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 present invention provides a lithium secondary battery and a preparation method therefor. According to the method, a LiPON thin film layer and a Li3PO4 thin film layer are separately deposited on two surfaces of a sulfide solid electrolyte layer by magnetron sputtering; afterwards, a positive electrode raw material (Li3PO4, Fe2O3, and carbon) composite material layer is deposited on a surface of the Li3PO4 thin film layer; the composite material layer is transformed into a positive active material layer after high-temperature sintering; a current collector layer is sputtered and deposited on a surface of the positive active material layer; the LiPON is dropwise coated with molten metal lithium; and the lithium secondary battery is obtained after pressing and packaging. The all-solid-state lithium secondary battery prepared by the present invention has excellent rate performance and cycle performance.

The present invention relates to a method for producing a substrate (2) which is coated with an alkali metal (1), in which method a promoter layer (3) which is composed of a material which reacts with the alkali metal (1) by at least partial chemical reduction of the promoter layer (3) is applied to a surface of the substrate (2) and a surface of the promoter layer (3) is acted on by an alkali metal (1) and then the alkali metal (1) is converted into the solid phase and a coating containing the alkali metal is formed.

The present invention relates to a cladding with magnetic properties and a magnetic adhesion system for covering parts that incorporate said cladding, being particularly suitable for the placement of ceramic parts and on supports of other materials.

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 present invention provides a lithium secondary battery and a preparation method thereof.

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.

A tool (1) made of refractory metal and having a cooling bore (2), wherein a silver-based protective coating (3) is formed at least in some areas of a wall (3) of the cooling bore (2).

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.

Apparatus for, and methods of, manufacturing a metal or metallic product. The apparatus (10) includes a furnace (110), a heated delivery vessel (120), a support substrate (230), a moving mechanism (250), and a cooling mechanism (232, 240, 241). Metal is heated to a molten state using the furnace (110) and held and maintained in the molten state by the delivery vessel (120). The delivery vessel (120) has a delivery vessel outlet (130) which is configured to feed the molten metal in a continuous stream from the delivery vessel (120) onto the support substrate (230). Relative movement between the delivery vessel outlet (130) and the support substrate (230) is provided by the moving mechanism (250), whereby the molten metal can be deposited onto the support substrate (230) in a plurality of overlying layers. The cooling mechanism (232, 240, 241) is operable to provide for the deposited molten metal to cool so as to solidify and thereby form a metal product. By providing a continuous stream of molten metal, large metal and metallic products can be made while practically overcoming existing limitations to scale and material selection in additive and deformation manufacturing methods.

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.

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 relates to the technical field of electronic packaging materials, and discloses a gradient magnesium-silicon-aluminum composite electronic packaging material forming method which comprises the steps of magnesium material surface treatment, first buffer layer preparation, second buffer layer preparation, composite forming and phase change material activating treatment. Wherein a nano porous Al-Cu-Mg alloy layer containing Se and Te elements is sprayed on the surface of the magnesium material, and eutectic phase and oxide particles are added in the buffer layer, so that a triple protection mechanism of thermal expansion coefficient gradient transition, phase change energy absorption and structural buffer is formed. The thermal shock resistance of the silicon-aluminum-magnesium composite electronic packaging material is improved, long-life service of the material is realized through a regeneration and activation mechanism of the phase-change material, and the reliability and stability of the composite material in a severe environment are remarkably enhanced.

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

To provide a toroidal propeller that can optimize the shape according to the type and size of mobility such as a ship, and can be made large and inexpensive. 【Solution means】A manufacturing system for a toroidal propeller for mobility, comprising a wire DED method 3D printer, and capable of forming a toroidal propeller having a toroidal shape by the 3D printer.

The embodiment of the invention provides a conductive substrate layer and a preparation method and application thereof. The preparation method of the conductive substrate layer comprises the following steps: adding a liquid indium-tin alloy on the surface of one side of a first substrate layer, then covering the surface of the liquid indium-tin alloy with a second substrate layer for lamination, then removing the second substrate layer, and carrying out an in-situ oxidation reaction on the laminated indium-tin alloy to obtain the conductive substrate layer. In the preparation process of the conductive substrate layer, the microstructure and stress distribution of the ITO thin film in the conductive substrate layer can be regulated and controlled through specific indium tin alloy and setting of pressing process parameters, the ITO thin film with a gradient interface and a local strain buffer structure is formed, and therefore cracks are effectively reduced; in addition, the preparation method is simple in technological process, large-area compatible and continuous production can be achieved, and a new path is provided for large-scale production of the conductive substrate layer.

A method and apparatus are provided for repairing a surface defect, the method including the steps of: a) providing a bolus of an at least partially liquid alloy in a fill chamber, the fill chamber having a closable outlet and a closable pressure inlet, b) introducing a pressurized fluid into the fill chamber via the pressure inlet and accelerating the bolus such that the bolus is ejected from the fill chamber via the outlet, c) directing the bolus along a path between the fill chamber and the defect such that the bolus contacts the defect, and d) solidifying the at least partially liquid alloy while in contact with the defect.

A system and method are provided to create porous surface coatings. In use, a surface material includes synthesized carbon-containing composite materials based on metallic particles and carbon particles, where the synthesized carbon-containing composite materials comprise a porosity characteristic, and satisfy at least one of: a heat transfer characteristic, a resistance to corrosion characteristic, or a non-ablative erosion characteristic. Additionally, the surface material includes a bonding layer disposed on a substrate to which the synthesized carbon-containing composite materials are bonded, and a surface layer comprising at least some of the synthesized carbon-containing composite materials, where a thermal characteristic of the surface layer is based on electron emissive cooling.

The present invention provides a sliding member having a covering layer capable of preventing delamination between layers and achieving good fatigue resistance. The sliding member has a covering layer formed of an alloy coating film of Bi and Sb, and a Bi-Sb oxide is formed on the surface of the covering layer.

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.

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 present invention belongs to the biomaterials sector for covering and protecting bone grafts / biomaterials, and it refers, more specifically, to a titanium mesh, covered with a biocompatible polypropylene film, which aims to obtain an increase in bone volume, using biomaterials or using grafts in their most varied forms, such as autogenous bone (bone from the individual), allogenous (bone from individuals of the same species), xenogeneic (bone from individuals from different species) for subsequent accommodation of osteointegrable implants. When using the mesh protected with the polypropylene film of this patent, blocking the perforations, the materials used to increase volume do not penetrate the perforations of the mesh, as they are blocked by the polypropylene film, making these meshes 100% impermeable. This makes it easy to remove the mesh and as there is no penetration of materials into the perforations, the implants are placed in a large quantity of bone tissue obtained. With the titanium mesh together with the polypropylene film, unlike when it does not have this protection, does not require its total coverage by surgical flaps, facilitating the surgical technique, thus avoiding postoperative complications, due to exposures that often occur from unprotected meshes. Moreover, we obtain the advantage of being able to keep the mesh intentionally exposed to the oral environment, placed on the materials used to achieve an increase in bone volume, regardless of the materials used under it, whether they are grafts or biomaterials (synthetic materials). This fact brings greater comfort to the patient, as it provides a postoperative period with very low morbidity and a quick recovery.

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.