270 results about "Solid metal" patented technology

A furnace vessel of an arc furnace is loaded with solid metal. Afterward, an energy supply device of the arc furnace feeds electrical energy to electrodes of the arc furnace via a furnace transformer to form arcs between the electrodes and the metal, the arcs melting the metal. Finally, the molten metal is removed from the furnace vessel. The number of electrodes is at least three. For at least two of the electrodes, the energy supply device individually sets the operating frequency (fa, fb) of the relevant electrode. The current (Ic) through the third electrode is defined by the current (Ia, Ib) through the first and the second electrodes. Which of the electrode is the first electrode, which is the second electrode, and which is the third electrode is assigned dynamically.

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.

To provide a metal or the like that contains Ga and a liquid metal, and is resistant to oxidation.SOLUTION: A metal according to one embodiment of the present invention includes, at 35°C, a liquid metal or a liquid metal and a solid metal consisting of 2-30 mass% of Sn, 0.01-2 mass% of Zn, 0.01-30 mass% of Bi, and the balance of Ga. A metal according to another embodiment of the present invention includes, at 35°C, a liquid metal or a liquid metal and a solid metal consisting of 1-35 mass% of In, 5-20 mass% of Sn, 0.01-2 mass% of Zn, 0.01-30 mass% of Bi, and the balance of Ga. A metal according to yet another embodiment of the present invention includes, at 35°C, a liquid metal or a liquid metal and a solid metal consisting of 0-20 mass% of In, 0-6 mass% of Sn, 0.1-3.5 mass% of Zn, 0.1-1.0 mass% of Bi, and the balance of Ga.SELECTED DRAWING: Figure 1

Solid metal foam thermal interface materials and their uses in electronics assembly are described. In one implementation, a method includes: applying a thermal interface material (TIM) between a first device and a second device to form an assembly having a first surface of the TIM in in touching relation with a surface of the first device, and a second surface of the TIM opposite the first surface in touching relation with a surface of the second device, the TIM comprising a solid metal foam and a first liquid metal; and compressing the assembly to form an alloy from the TIM that bonds the first device to the second device.

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.

A zinc-containing dust fluidization hydrogen group reduction comprehensive utilization method belongs to the technical field of zinc-containing dust treatment, and comprises the following steps: screening and crushing collected zinc-containing dust, and then drying to obtain pretreated zinc-containing dust; nitrogen is introduced into the fluidization reaction device, the zinc-containing dust is added for heating, and after the temperature is stable, hydrogen is introduced to reduce the flow of the nitrogen; when the hydrogen flow reaches a specified value, the hydrogen channel is kept open, the nitrogen channel is closed, and fluidized hydrogen group reduction roasting is carried out by controlling the temperature; after gaseous zinc is formed, the gaseous zinc enters a condensation system with inert gas along with hydrogen flow to be condensed into metal zinc particles, the metal zinc particles are collected and recycled, and solid metal iron is reserved at the bottom of the reaction device; and the roasted gas enters a tail gas treatment system and is recycled after being purified. Hydrogen reduction adopted by the method has lower environmental influence, the rapid and thorough reduction process can be achieved under the high-temperature condition, and the current requirements of green metallurgy and low-carbon economy are met.

The invention discloses a semi-solid metal slurry preparation device based on vibration and collision, and relates to the technical field of semi-solid metal processing. The preparation device comprises a fixed bracket, a crucible, a vibration unit, a stirring unit, a lifting mechanism and a temperature control unit. When preparing the semi-solid metal slurry, the invention puts an alloy melt into the crucible, adjusts the stirring unit according to the viscosity of different slurries and actual needs, descends the lifting mechanism, inserts the vibration unit, the stirring unit and the temperature control unit into the alloy melt, starts the stirring unit and the vibration unit, stirs and vibrates the alloy slurry, the vibration unit can make the distribution of spherical particles more uniform during stirring, eliminates bubbles in the alloy slurry, and ensures the quality of the prepared semi-solid metal slurry, the temperature control unit releases cooling liquid or gas to cool the alloy melt, detects the temperature of the alloy slurry by the temperature control unit, and stops working after reaching the expected temperature.

A barred weight collar of hinged plates is provided to incrementally increase the weight characteristics of a bar weight. The collar includes a ring assembly of multiple, different plates formed from solid metal such as steel, which are hingedly coupled to one another and a frictional insert with an exterior shape matching an interior shape of the collar. A distal end of one of the plates is then coupled to a proximal end of an adjacent one of the plates with a latch. In this way, when the distal end of the one of the plates is coupled to the proximal end of the adjacent one of the plates with the latch, the different plates of the ring assembly form the collar which in turn collars a circumferential surface of one of two different weighted circumferential structures positioned oppositely along a bar of the bar weight, thereby incrementally increasing the weight characteristic of the bar weight.

The invention belongs to the technical field of energy storage materials, and relates to an interface bonding layer of lithium and solid electrolyte, an interface bonding method and application, the bonding layer is deposited on the surface of a solid electrolyte matrix material through magnetron sputtering, and the bonding layer can be composed of tin-lead alloy, tin-silver-copper ternary alloy and other materials. The electrolyte is suitable for solid electrolytes of NASICON type, garnet type, sulfide, halide and the like; the bonding process is carried out at 70 DEG C under the pressure of 200MPa, so that the interface stability of the battery is remarkably improved, the interface impedance is reduced, the energy density is effectively improved, and the cycle life is effectively prolonged; in addition, the composition of the bonding layer and lithium have certain solubility, binary or multi-element alloy can be formed, uniform deposition of lithium is promoted, formation of lithium dendrites is inhibited, and the failure risk of the battery is reduced. According to the invention, the safety and stability of the battery are improved, the overall electrochemical performance is optimized, and powerful support is provided for the practical application of the solid-state metal lithium battery.

The invention discloses a metallization method for the side wall of a cavity of a low-temperature co-fired ceramic substrate. The metallization method comprises the following steps of: sequentially performing punching treatment on each layer of green ceramic chip according to a preset cavity outline; during lamination, the hole sites on the adjacent green ceramic chips are arranged in a staggered and overlapped manner; the holes are filled with metal slurry in a solid mode, and a blank plate with solid metal points is obtained after drying and leveling treatment; each layer of blank plate is cut according to the cavity contour in sequence; the outline of the cavity is a line connected with each solid metal point on the blank plate; and laminating and pressing the cut blank plates, and co-firing to obtain the ceramic substrate with the metalized cavity side wall. The round holes are designed in the contour lines of the cavities of the green ceramic chips, then the solid metal slurry is filled in the green ceramic chip stage, and the green ceramic chips are laminated and co-fired, so that metal interconnection in all the round holes in the contour area of the substrate is realized, after the cavities are formed, the filled metal slurry is immediately exposed, and metallization of the side walls of the cavities of the substrate is completed.

The invention relates to a solid-liquid bimetal composite material preparation method based on self-resistance heating, and belongs to the technical field of solid-liquid bimetal composite casting. In order to solve the problems that in an existing solid-liquid bimetal composite casting technology, a bonding surface is prone to oxidation, and the solid-liquid bimetal composite casting technology is not suitable for large-size solid metal bonding, a pretreated plate-shaped metal base material is fixedly installed on a self-resistance heating device; the sand mold and a plate-shaped metal base material installed on the self-resistance heating device are fixedly assembled together to complete the molding process; and under the inert atmosphere, a self-resistance heating device is started to heat the plate-shaped metal base material, heating is stopped immediately when the temperature is increased to the target temperature, meanwhile, liquid metal obtained through smelting is poured into an inner cavity of the sand mold, cooling is conducted to the room temperature, and the double-metal composite part is obtained. According to the self-resistance heating mode provided by the invention, preheating of the base material can be rapidly and efficiently completed, the oxidation problem of the base material is reduced, and the method is suitable for preparing the solid-liquid bimetal composite material with the plate-shaped base material and the preheating requirement.

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.

The invention provides a preparation method and device of a graphene metal composite material. The preparation method comprises the steps that a metal raw material is prefabricated into metal liquid or metal powder or metal powder coated with a carbon source; a prefabricated metal raw material is sprayed to the first reaction area, and metal powder with the solid metal powder surface is prepared; the metal powder with the solid surface is put into a second reaction area, the metal powder is heated until part or all of the surface of the metal powder is in a liquid state, graphene is deposited on the surface of the metal powder, and a graphene metal compound is obtained; wherein the temperature of the second reaction zone is higher than that of the first reaction zone; the graphene metal compound is put into a cooling area to be cooled, and the graphene metal composite material is obtained; wherein the temperature of the cooling zone is lower than that of the first reaction zone. The invention aims to solve the technical defects of small graphene coating area and low quality in the graphene metal composite material obtained in the prior art.

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 a method for preparing a semi-solid metal elastomer, the method comprising: (1) adding liquid metal to water for ultrasonic mixing to obtain an aqueous solution of suspended particles of liquid metal droplets; (2) adding solid metal particles to the aqueous solution in step (1), ultrasonic mixing to obtain a mixed suspended aqueous solution of solid metal particles and liquid metal droplets; (3) adding an acidic solution to the mixed suspended aqueous solution in step (2) to obtain a solid precipitate, that is, a semi-solid metal SSM; (4) grinding the semi-solid metal and an elastomer precursor liquid, and curing to obtain a semi-solid metal elastomer SSME. The semi-solid metal elastomer prepared by the invention has better mechanical properties and electrical conductivity, and the resistance change under strain is not obvious.

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.