153 results about "Solid metal" patented technology

The invention belongs to the technical field of metal additive manufacturing post-processing, and relates to a method for achieving crack closing of a tungsten component prepared through SLM based on SPS. The method mainly comprises the following steps that S1, a tungsten component is prepared, specifically, a pure tungsten component is prepared through a selective laser melting (SLM) technology; s2, the SLM forming component is subjected to surface cleaning and support removing treatment, and after it is ensured that no powder residues exist, accurate positioning and placing treatment is conducted; and S3, SPS treatment process: putting the graphite mold treated in the step S2 into SPS equipment for sintering treatment. Through the combined action of high temperature and mechanical pressure, inevitable microcracks in the SLM pure tungsten component are effectively closed, and the compactness and integrity of the component are remarkably improved.

According to the welding machining device and method for the inner net and the outer net of the filter, the welding machining device comprises the machining machine table, the lifting mechanism, the moving mechanism, the roller electrode, the shaft electrode and the hooping mechanism, and complex spatial spiral movement is simplified into single axial movement of the roller electrode in a joint channel; an expensive and complex high-precision multi-axis linkage numerical control system is not needed, only one common motor is needed to drive a roller electrode to linearly walk along a joint channel, inclined joint welding of the filter metal net is completed, a workpiece can be driven to rotate in a pure mechanical mode, the cost is low, the welding efficiency is high, and through a micro forging and pressing mode in advance, the welding efficiency is high. According to the method, a solid metal strip with the width of about 1-2 mm and without through holes is formed, and the solid strip provides a continuous and uniform contact surface for a subsequent roller electrode, so that a constant resistance and ideal current path is provided, controllable and predictable generation of welding heat is realized, and the problems of pseudo soldering and overburning caused by meshes are greatly reduced.

This invention discloses a multi-motion mode high-temperature liquid metal environment micro-motion abrasion experimental device, comprising: a frame, which serves as a support; a melting vessel unit, which is disposed on one side of the frame and is used to melt solid metal into liquid under preset conditions; an experimental vessel unit, which is disposed on the other side of the frame and is used to construct a sample for micro-motion abrasion experiments in a liquid metal environment; and a connecting pipe unit, which is used to guide the molten liquid metal in the melting vessel unit into the experimental vessel unit.

Protection of tubulars from premature wear in the mid-body section due to highly curved wellbores, including bowing from high axial compressive loads, or gravity induced bowing in a horizontal section of the wellbore is disclosed. It includes a method of installing a strong, wear resistant, fully encircling steel band around the midbody region of tubular joints on new and worn tubulars. Further, it does so without degrading the metallurgy or microstructure of the pipe body yet attaches the protective band with such high clamping force that it is unlikely to slip even under the most extreme service conditions. In addition, the circumferential integrity of the pipe band makes it even less likely to ever break off. A protective band includes a wear resistant hard banding weld overlay installed around the circumference of the protective band.

This invention relates to the field of metal die casting technology, and more specifically, to an ultrasonic-assisted vacuum die casting apparatus and method for non-ferrous metals. The apparatus includes a forming mold, a casting system, a vacuum system, and a vibration demolding system. The forming mold has a cavity. The casting system is connected to the forming mold and is used to inject liquid metal into the cavity. The vacuum system is connected to the forming mold and is used to evacuate the cavity. The vibration demolding system is connected to the forming mold and is used for ultrasonic vibration and demolding. Evacuating the cavity allows the molten metal to fill it more easily, reducing porosity and increasing density. The vibration demolding system vibrates the semi-solid metal material cooled to a certain point within the cavity, breaking up grains and venting air, thereby producing die-cast parts with clear interfaces, high density, and high strength and quality. The vibration also automatically cuts off the small gate point of the casting and solidified material.

A melting furnace may include a feeding unit configured to supply solid metal; and a heating chamber for heating and maintaining the molten metal. The heating chamber may include a plurality of immersion heaters, wherein each immersion heater is immersed in the molten metal and heats the molten metal. The melting furnace may also include a pump configured to circulate molten metal from the heating chamber to the melting chamber; and a melting chamber configured to receive the solid metal from the feeding unit and the molten metal from the heating chamber, where the solid metal is submerged in the molten metal in the melting chamber and melted to produce a liquid metal. The liquid metal may be circulated from the melting chamber to the heating chamber.

The invention relates to a device for melting metal by means of solar energy, the device comprising a crucible (11) able to contain a liquid metal and a gas-tight enclosure (9, 13), wherein the enclosure contains the crucible, the crucible being in mechanical contact with the enclosure, wherein the enclosure comprises a first duct (7) configured for the introduction, into the enclosure and into the crucible, of divided solid metal, a second duct (14) configured for the removal, from the crucible and the enclosure, of liquid metal, and a third, optical duct (15) configured for the entry, into the enclosure and into the crucible, of sunlight (4), wherein the first duct comprises a first isolation valve (1.b) for gases, the second duct comprises a second isolation valve (1.c) for gases, and the third duct comprises a window (6) transparent to sunlight.

The invention discloses an extrusion forming device and method for metal wires for additive manufacturing, and relates to the field of metal wire forming and manufacturing. The problems that due to a traditional hot drawing technology, metal wire preparation is tedious, and internal stress exists are solved. The device comprises a smelting furnace and two shaping rollers, the smelting furnace is configured to perform melting treatment on metal raw materials to form molten metal, the smelting furnace is provided with a wire outlet channel, and the molten metal can be discharged from the wire outlet channel; the two shaping rollers are arranged side by side in the radial direction, a wire extruding and shaping channel is formed between the two shaping rollers, and a wire outlet of a wire outlet channel of the smelting furnace is located above the wire extruding and shaping channel. And the two shaping rollers rotate oppositely, the wire outlet channel discharges wires and sprays the wires into the wire extruding and shaping channel, and the two shaping rollers extrude and cool the molten metal wires, so that the molten metal wires are formed into solid metal wires. The method is mainly used for preparing the metal wires.

A method for manufacturing a metal solid-to-metal solid bonded body, capable of improving a bond strength on a bonding face, and a composite member. A solid metal body containing a first component is brought into contact with a solid metal material composed of a compound, an alloy, or a non-equilibrium alloy, which contains both a second component and a third component having positive and negative heats of mixing respectively relative to the first component, and heated at a predetermined temperature for a predetermined time while applying a predetermined pressure to between the metal body and the metal material. Thereby, the first component and the third component are interdiffused with each other, and a liquid alloy containing the first component and the third component, which has been generated in a region where the first component and the third component have interdiffused with each other, is discharged.

The utility model discloses a cover plate assembly and a battery cell module, the cover plate assembly comprises a cover plate main body, a pole and a fixing assembly, the cover plate main body is provided with a first through hole, the pole comprises a pole plate body and a pole main body, the first end of the pole main body is connected with the pole plate body, the second end of the pole main body penetrates through the first through hole, and the fixing assembly is arranged on the pole plate body. The cover plate body extends to one side, far away from the pole plate body, of the cover plate body; the part of the pole main body on one side, far away from the pole plate body, of the cover plate main body is fixed through a fixing assembly; the fixing assembly is made of solid metal. The first through hole with the hole diameter larger than that of the pole main body is formed, so that the pole main body penetrates through the first through hole, the pole main body and the cover plate main body are locked through the fixing assembly on the side, away from the pole plate body, of the pole main body, and the fixing assembly made of metal is higher in structural strength and easy to fix and install; and auxiliary structures such as a riveting die are not needed, so that the assembly difficulty and cost of the cover plate assembly are reduced.

The application provides an additive method based on laser impact, and relates to the field of additive manufacturing. The additive method based on laser impact comprises the following steps: adopting a laser impact machining method, irradiating a laser beam on a metal foil in a direction perpendicular to the metal foil, making the metal foil impact a base under the action of a laser impact wave, and realizing additive combination of the metal foil and the base through the impact action; wherein the material of the base comprises a metal material. The method can promote close and firm combination between solid metal materials, thereby realizing efficient metal additive manufacturing. The additive manufacturing product prepared by using the method has excellent tensile strength and elongation. In addition, the method has wide applicability and can be flexibly applied to processing of various metal materials, effectively widens the material selection range of traditional alloy powder cladding type additive manufacturing technology, significantly reduces defects in traditional additive manufacturing technology, and improves overall manufacturing quality.

In this invention, selection of a coloring agent and an auxiliary material is made easy, and detection performance in a case of targeting a solid metal is thereby improved.　This reagent is used for detecting an element contained in a test object, which is a solid metal such as a copper alloy. The reagent comprises: an organic coloring agent such as xylenol orange; a keeping agent for keeping a state of adhesion to the test object; and a coloration visibility improving agent for improving visibility of coloration of the organic coloring agent with respect to a background color of the test object. The reagent also comprises a pH adjusting agent, whereby the pH is adjusted to 0 or more.

The present invention provides a method for manufacturing a jointed body of solid metals and a composite member that can increase the bonding strength at the joint surface. [Solution] A solid metal body containing a first component is brought into contact with a solid metal material consisting of a compound, alloy, or non-equilibrium alloy that simultaneously contains a second component and a third component, each having positive and negative mixing heats relative to the first component, respectively. A predetermined pressure is applied between the metal body and the metal material while performing heat treatment at a predetermined temperature for a predetermined time. This causes the first component and the third component to mutually diffuse, and the alloy liquid containing the first component and the third component, which is generated in the region where the first component and the third component have mutually diffused, is discharged.

The invention discloses a preparation method of a co-fired integrated heat sink for an LTCC substrate, and belongs to the technical field of electronic components. According to the structure of the integrated heat sink, a through or non-through cavity with the size matched with that of a chip is prefabricated in the LTCC substrate according to the position of the high-power chip; before the raw ceramic tape is laminated and sintered, high-thermal-conductivity metal slurry is used for filling to form a solid metal heat sink block; the power chip is directly installed on the filled metal heat sink block, and heat generated by the chip is quickly conducted to the bottom plate through the solid metal block. The preparation method comprises a cavity forming process, a metal slurry filling process and a laminating and co-firing process. The problems that an existing LTCC substrate is low in intrinsic thermal conductivity, a heat sink cannot be welded, and the integration technology of a heat dissipation structure and a circuit substrate is poor in feasibility, high in cost and poor in practicability are solved. The method is widely applied to the substrate manufacturing technology of power electronic components, power assemblies, power modules and complete machine circuits.

The utility model discloses a semi-solid injection molding mold with a cooling mechanism, and belongs to the technical field of semi-solid injection molding molds. The mold mainly comprises an upper mold body and a lower mold body, the lower mold body comprises a bottom plate and a bottom mold body, the bottom mold body is fixedly installed on the bottom plate, a liquid inlet pipe and a liquid outlet pipe are installed on the two sides of the bottom mold body in a threaded mode respectively, a cooling cavity is formed in the bottom mold body, and a lower forming cavity for finished product forming is formed in the top face of the bottom mold body; a cooling cavity is formed in the enclosure frame, a cooling groove is formed in the enclosure frame and communicates with the cooling cavity, a first heat conduction assembly is arranged in the cooling cavity, a second heat conduction assembly is arranged in the cooling groove, and by arranging the double heat conduction assemblies and the layered cooling structure, the cooling effect is greatly improved; the defects that the cooling speed of semi-solid metal is inconsistent due to too high mold temperature or non-uniform cooling are effectively avoided, shrinkage cavities, deformation and the like are reduced, the product size precision and the forming quality are improved, meanwhile, the forming period is shortened, and the production efficiency is improved.

The invention discloses a space metallurgy method based on a metal ceramic inert anode, and belongs to the technical field of space metallurgy. According to the preparation method, metal phase powder and ceramic phase powder are mixed according to the proportion and tabletted, and then are sequentially subjected to flash evaporation Joule thermal alloying treatment and in-situ pre-oxidation treatment, so that the metal ceramic inert electrode with high conductivity, high density and high strength is prepared. Then fluoride KF-AlF3-LiF is adopted as a molten salt electrolyte system, extraterrestrial resources are dissolved in the molten salt system in a molten state, the metal ceramic inert anode prepared through the method is adopted for electrolysis, mass transfer is stable under the low gravity / microgravity, the raw material dissolving capacity is high, the corrosion rate is low, solid metal powder and oxygen are obtained, and the metal ceramic inert anode is suitable for being used for electrolysis. Therefore, in-situ utilization of extraterrestrial resources is realized.

The application discloses a kind of metal polymer composite for 3D printing and preparation method thereof, the composite is prepared by compounding semi-solid metal alloy modified by coupling agent with polymer material.The preparation method is: modified semi-solid metal alloy, polymer material, functional additive are mixed, and are processed into shape to be prepared;Or modified semi-solid metal alloy, polymer material, functional additive are mixed, material for 3D printing, and are solidified into shape again.The composite of the application is used at temperature of 20-230 DEG C, viscosity is 1-10 5 Pa·S, resistivity is 10 ‑6 ~10 6 Ω·cm;Preparation method is simple, raw material cost is low, non-toxic, post-processing is simple, so that material is applied to 3D printing when extruding evenly, speed is controllable, warpage is low, and the prepared conductive polymer material is easy to store, small in density, stable in conductive effect, compared with traditional conductive printing material, and conductive performance is obviously improved.

A solid metal thermal insulation jacketing for fluid flow devices such as valves and pipes used in heavy industrial applications is additively manufactured (e.g., by 3D printing) to fit within the bore of the fluid flow device being protected. An inlaid support structure extending obliquely between the inner surfaces of the inner and outer shells provides increased thermal conduction resistance while also providing increased compressive force strength. An example support structure includes an array of four obliquely oriented elongate members that mutually intersect at an intermediate point between the inner surfaces of the inner and outer cylindrical shells. If the interior gap is sealed, they can be evacuated or pressurized to enhance thermal insulation properties. In some applications, pressure equalization ports can be provided on or through the jacketing if desired.

The invention relates to a novel functional material for X-ray protection, in particular to a liquid metal flexible shielding material and a preparation method and application thereof. The material comprises liquid metal and solid metal, the liquid metal serves as a solvent to be filled in gaps of the solid metal, the liquid metal is gallium, gallium indium, gallium indium tin, gallium indium tin zinc or mercury, and the solid metal is selected from one or more of indium, tin, gold, platinum, iridium, zirconium, niobium, molybdenum, ruthenium, osmium, rhenium, rhodium, tungsten, antimony, palladium, tantalum, hafnium, lutetium, lead, ytterbium, thulium, bismuth, silver, erbium, holmium, dysprosium, terbium, gadolinium, samarium, neodymium, lanthanum, praseodymium, cerium and europium. On the basis of compounding of the liquid metal solvent and the solid metal solute based on the liquid metal combinatology, the liquid metal and the solid metal are jointly used for protecting X-ray radiation, the comprehensive performance of X-ray protection is improved, and meanwhile the variety and number range of selectable metal elements is widened.

Protection of tubulars from premature wear in the mid-body section due to highly curved wellbores, including bowing from high axial compressive loads, or gravity induced bowing in a horizontal section of the wellbore is disclosed. It includes a method of installing a strong, wear resistant, fully encircling steel band around the midbody region of tubular joints on new and worn tubulars. Further, it does so without degrading the metallurgy or microstructure of the pipe body yet attaches the protective band with such high clamping force that it is unlikely to slip even under the most extreme service conditions. In addition, the circumferential integrity of the pipe band makes it even less likely to ever break off. A protective band includes a wear resistant hard banding weld overlay installed around the circumference of the protective band.

This invention belongs to the field of metal rolling technology, specifically a method for producing corrosion-resistant hot-rolled metal composite profiles. It involves preparing a metal composite billet using one solid metal round billet and N layers (N≥1) of metal tube billets, and obtaining the metal composite profile through hot continuous rolling. This method allows for the economical production of corrosion-resistant hot-rolled metal composite profiles according to national standards. The combined rolling process using an asymmetric three-roll Y-type mill and a two-roll continuous rolling mill causes the metal composite billet to undergo plastic deformation under triaxial asymmetric compressive stress, achieving metallurgical bonding at the metal interface and resulting in good strength. The process is characterized by a short flow, low metal loss and energy consumption, simple equipment structure, and low investment and production costs. The produced corrosion-resistant hot-rolled metal composite profiles exhibit good machinability, plastic formability, and excellent corrosion resistance.

This invention discloses a tangential and punching composite micro-motion abrasion experimental device in a high-temperature liquid metal environment, comprising: a test vessel, a melting vessel, a frame, a heat tracing pipeline unit, a normal force loading module, and a micro-motion module. The frame serves as a support. The melting vessel is located on one side of the frame and is used to melt solid metal into a liquid state under preset conditions. The test vessel is located on the other side of the frame. The test vessel unit, together with the normal force loading module and the micro-motion module, constructs a sample for micro-motion abrasion experiments in a liquid metal environment. The heat tracing pipeline unit is used to guide the molten liquid metal in the melting vessel unit into the test vessel unit.

A method for optimising transfer of metal from a metal powder-polymer matrix to an object's surface in a three-dimensional additive manufacturing printing or coating process, the method comprising the step of irradiating a metal powder-polymer matrix flexible film using a heat source to vaporise the polymer and melt the metal particles together to form a layer of solid metal on the surface of the object, wherein the heat source has a focal plane that converges below the surface of the metal powder-polymer matrix flexible film.

A current collector may comprise a strength enhancement layer and a current collecting layer, wherein the current collecting layer may be stacked and bonded with the strength enhancement layer, and the current collecting layer may comprise a foam metal portion and a solid metal portion.

The invention discloses an RHEO semi-solid aluminum alloy slurry mixing device, and relates to the technical field of semi-solid metal processing.The RHEO semi-solid aluminum alloy slurry mixing device comprises a discharging platform, multiple sets of mounting blocks and a mixing base, the multiple sets of mounting blocks are mounted on one side of the discharging platform, connecting blocks are hinged to the inner sides of the mounting blocks, and the mixing base is mounted on the outer walls of the connecting blocks; a rotating shaft is installed in the mixing base through a bearing, an eccentric wheel is installed at the top end of the rotating shaft, a clamping mechanism is installed at the top end of the eccentric wheel, and a synchronizer is arranged on one side of the discharging platform. And the eccentric wheel drives the arc-shaped sliding frame to slide in the limiting shaft, and the structure is convenient for driving the charging barrel to quickly shake and mix.

The invention discloses a broadband achromatic programmable electromagnetic camouflage device based on a fluid access metasurface. The broadband achromatic programmable electromagnetic camouflage device comprises the fluid access metasurface composed of a plurality of periodically arranged super units. Each super unit comprises a plurality of units arranged in a matrix; each unit comprises a microfluid channel layer and a solid metal layer, and the microfluid channel layer is located above the solid metal layer; the microfluid channel layer is connected to an external driving system through the injection and discharge port, and the external driving system is used for injecting liquid metal or dielectric liquid into the microfluid channel layer; when the microfluid channel layer is filled with liquid metal, the unit is in a first working state; and when the micro-fluid channel layer is filled with the dielectric liquid, the unit is in a second working state. According to the invention, linear phase dispersion control can be realized in a broadband, and it is ensured that the generated false target echo keeps high fidelity in a time domain when facing a broadband pulse radar.

The invention relates to the technical field of semi-solid metal material processing, in particular to a preparation method of a novel rheo-die-casting high-strength high-thermal-conductivity Al-Si-Fe-Sr alloy, which comprises the following steps: preparing raw materials according to alloy components, and smelting the raw materials under the condition of protective atmosphere to obtain an alloy melt; the alloy melt is subjected to heat preservation treatment, and the material transferring time point of the alloy melt is determined on the basis of the similarity between a cooling rate curve of the alloy melt and a preset cooling rate curve; pouring the alloy melt into a gas-induced semi-solid slurrying device at a material transfer time point, determining a dynamic flow regulation curve of introduced inert gas based on temperature fluctuation values of a plurality of monitoring points in a pouring process and an irregular bubble generation area ratio, and pouring obtained semi-solid slurry into a die-casting chamber of die-casting equipment, carrying out die-casting forming; performing heat treatment on the die casting; according to the method, the analysis accuracy of the Al-Si-Fe-Sr alloy preparation process is improved, so that the preparation efficiency and quality are improved.

A multi-field assisted solidification levitation melting and pulling ingot device includes a melting vessel configured to contain metal so that the metal is heated in the melting vessel, a first electromagnetic generating device configured to surround the melting vessel to heat the metal and levitate the metal within the melting vessel by generating a magnetic field, and an ultrasonic vibration pulling ingot device configured to contact the liquid metal and provide guidance to solid metal solidified from the liquid metal. The ultrasonic vibration pulling ingot device is configured to generate and transmit ultrasonic vibrations to a solidification interface of the metal while guiding the solid metal. A method is also provided.

The application is a device for building multilayer annular block material from multiple solid metals, which comprises a rotating frame (1) capable of rotating around a central axis, the rotating frame (1) being a hollow cylinder, a cylindrical heat treatment column (2) being arranged at the axial position in the inner cavity of the rotating frame (1), two powder feeding pipes (3) being symmetrically arranged around the heat treatment column (2), the powder feeding pipes (3) being capable of rotating and moving up and down along the central axis of the rotating frame (1), in the use process, titanium-aluminum alloy powder particles are plastically deformed on the surface of a titanium metal ring, and the combination with the titanium metal ring base material is completed with the aid of a tangential force.

The invention discloses a selective regulation and control and directional enrichment method and system for metal arsenic crystal forms in arsenic-containing gypsum residues and an alpha crystal form-metal arsenic product, and belongs to the technical field of nonferrous metallurgy and secondary resource recovery. The method comprises the following steps: under an anaerobic condition, carrying out a reduction reaction on the arsenic-containing gypsum slag and a reducing carbonaceous material to obtain metal arsenic vapor; carrying out gradient condensation on the metal arsenic steam to obtain a solid metal arsenic product; the gradient condensation comprises three condensation zones: the temperature of the first condensation zone is 420-450 DEG C, the temperature of the second condensation zone is 360-390 DEG C, and the temperature of the third condensation zone is 300-330 DEG C; and the solid metal arsenic product is cooled to 80 DEG C or below at the cooling rate not lower than 50 DEG C / min, and an alpha crystal form-metal arsenic product is obtained. According to the method, the high-valued arsenic is realized, the sulfur element is synergistically cured, the resource utilization of the residues is realized, and finally, the near-zero emission of the whole treatment process is achieved.