59 results about "Copper mold" patented technology

The invention relates to a high-temperature mold three-dimensional defect online detection device and method for a disc casting machine, and belongs to the technical field of casting defect detection.The device comprises an upper computer module, a radio frequency identification module, a visual detection module and a visual software system; the radio frequency identification module is used for detecting whether the copper mold enters a to-be-detected station or not; the upper computer module is electrically connected with the radio frequency identification module, and the upper computer module is used for receiving and sending a control instruction; the visual detection module is electrically connected with the upper computer module and is used for shooting a machine visual image of a copper mold at a to-be-detected station; the visual software system is electrically connected with the upper computer module and the visual detection module, and the visual software system displays a planar graph according to a control instruction sent by the upper computer module and a machine visual image shot by the visual detection module and generates a depth map to analyze defect information. According to the method, the influence of product qualification rate fluctuation caused by personnel experience levels can be reduced, and the product qualification rate is improved.

The invention discloses a cast iron white sample preparation method for direct-reading spectrometry detection, a mold and a processing device thereof, and relates to the technical field of metal material analysis and detection, the cast iron white sample preparation method comprises the following steps: S1, under the protection of high-purity inert gas, rapidly melting a cast iron sample by using a high-frequency induction heating device; and S2, the completely-molten metal liquid is rapidly poured into a mold internally provided with a forced water cooling system. According to the preparation method of the cast iron white sample for direct-reading spectrometry detection and the mold, high-frequency rapid melting and ultra-rapid cooling of the water-cooling copper mold are combined, graphite precipitation is fundamentally inhibited, even for high-carbon-equivalent cast iron, it can be guaranteed that 100% of a full white structure is obtained, the problem that carbon and silicon elements are not detected accurately in spectral analysis is thoroughly solved, and the production efficiency is improved. The prepared sample is uniform and compact in structure, free of defects such as shrinkage porosity and pores and high in component representativeness, and the reproducibility and accuracy of direct-reading spectrum analysis are greatly improved.

The utility model discloses an insert processing device of a cedar fastener injection molding mold, which comprises a tool clamp and an insert, a pair of mounting grooves is symmetrically arranged at the top of the tool clamp, an included angle alpha is arranged between the mounting grooves and an X-axis plane, an included angle beta is arranged between the mounting grooves and a Y-axis plane, and the insert is arranged in the mounting grooves. According to the utility model, through the design of the tool clamp, the machining position of the insert is vertically arranged upwards, and the copper plug is moved up and down through the driving mechanism of the spark machine, so that the forming groove of the insert can be machined and formed; the mold insert can be sparking by adopting a common mirror spark machine, the machining requirement of the copper mold is reduced, the copper mold can be manufactured by only needing a common engraving and milling machine, the cost is low, the machining period is short, and the interchangeability is high.

The invention discloses a high-strength, high-plasticity and low-coercive-force soft magnetic high-entropy alloy and a preparation method thereof. The component expression of the soft magnetic high-entropy alloy is FeaCobNicVdMe according to the atomic ratio, M is one or more than two of solid solution strengthening elements Mn, B, Si, Cr, Mo and W, a is larger than or equal to 41 and smaller than or equal to 62, b is larger than or equal to 25 and smaller than or equal to 30, c is larger than or equal to 13 and smaller than or equal to 21, d is larger than or equal to 0 and smaller than or equal to 3, e is larger than or equal to 0 and smaller than or equal to 5, and a + b + c + d + e = 100. The production process is simple, the mother alloy is firstly prepared into a cast plate through induction / electric arc melting and copper mold casting, and the plate-shaped soft magnetic high-entropy alloy is prepared through high-temperature long-time vacuum heat treatment, multi-pass cold rolling, high-temperature short-time recrystallization heat treatment and air cooling.

The utility model relates to a constant-temperature mold casting device, which belongs to the technical field of non-ferrous metals and comprises a copper mold, a heat exchange medium channel is arranged in the copper mold, the input end of the heat exchange medium channel is communicated with a water inlet pipe, and the output end of the heat exchange medium channel is communicated with a water outlet pipe; the water inlet pipe is connected with an input pipeline through a liquid rotating joint, the input pipeline comprises a cooling water input pipe and a hot steam input pipe, and the hot steam input pipe is connected with the cooling water input pipe through a water vapor switching electromagnetic valve; the water outlet pipe is connected with a heat exchange return water output pipe through a liquid rotating connector. The temperature of the mold can be well controlled, and the service life of the mold is prolonged.

The invention belongs to the technical field of metal plate strip heat treatment, and discloses a continuous quenching device and method for a metal strip with the thickness smaller than or equal to 2 mm. The cooling system utilizes a graphite plate and a water cooling copper mold to achieve efficient and high-uniformity heat exchange of a metal strip, the circulating water system controls the water temperature, the lifting rack provides pressing force to achieve tight attachment of the strip and the graphite plate, the strip traction positioning system provides traction force to balance friction force between the graphite plate and the strip, and a traction roller transmission motor is used for controlling the speed of the strip. The method comprises a pressing force control method, a circulating water control method and a traction force and traction speed control method, quenching deformation of the strip can be effectively restrained, and quenching according to the process speed and the cooling path is achieved. According to the invention, the industrial common problems of poor quenching plate shape, large residual stress, poor quenching temperature uniformity and the like of the ultra-thin metal strip are solved, and high-strength uniform, high-straightness and low-residual-stress quenching production of the ultra-thin metal strip is realized.

The utility model provides a copper mold core for solving mold exhaust, and aims to solve the problems of unsmooth mold exhaust, bubble accumulation, material adhesion, difficult demolding and the like. The copper mold core mainly comprises a mold core column body, a forming groove, an exhaust micropore, an exhaust groove, a fixing lug and a surface coating. The mold kernel column body is made of copper or copper alloy and has excellent thermal conductivity; the forming groove is formed in the top of the mold kernel column body, and the smoothness of the formed surface is ensured through high-precision machining and polishing; the exhaust micropores and the exhaust grooves are respectively formed in the interior of the forming groove and the edge of the mold kernel column body and are used for effectively exhausting gas in the forming process and avoiding bubble retention; and the fixing lugs are used for stably mounting the mold core on production equipment. Through the design, the exhaust effect of the mold is remarkably improved, the forming quality of contact lenses is improved, the demolding process is smooth, and the service life of the mold is prolonged. The method is suitable for the production field of contact lenses and other high-precision medical instruments, and has wide application prospects.

This invention discloses a method for improving the dimorphic eutectic in SuperDyma alloys. The mass percentages of the components in the alloy are: Al: 11%, Mg: 3%, Si: 0.2%, B: 0.06-0.09%, with the remainder being Zn. First, SuperDyma alloys are obtained by casting using different cooling methods. The alloy liquid cooled using a copper mold exhibits the most uniform solidification structure, with a significant improvement in dimorphic eutectic. By adding B element to the SuperDyma alloy through alloying, the solidification structure is refined, further improving the dimorphic eutectic phenomenon and consequently enhancing the alloy's corrosion resistance.

The application discloses a preparation method of nano-graphene lubricating oil and relates to the technical field of lubricating oil. The modified zirconium-titanium composite particles are used as a catalyst to synthesize base oil, so that the heat resistance effect is improved; then, under the assistance of microwaves, graphene is stripped to improve the dispersibility of the graphene in the lubricating oil, and a hydrogen bond network is formed on the surface of the modified zirconium-titanium particles, so that the fatigue wear is reduced, and the service life is prolonged; on the basis, electrochemical deposition is generated between the particles and the graphene in the friction process, so that the self-repairing effect is achieved. The modified zirconium-titanium composite particles are first injected into pre-cooled liquid nitrogen copper molds by precursor sol, are rapidly frozen, are dried by vacuum sublimation to remove ice crystals, and form snowflake-like hierarchical porous structures, so that the lubricating effect is improved; then, low-temperature annealing is performed to form Zr-O-Ti mixed oxide skeletons, so that the pore collapse is effectively inhibited, and the service life is prolonged; and then, through the surface hydroxyl groups and capillary action, ionic liquids are adsorbed to form a coating layer, so that the lubricating effect is enhanced.

This invention discloses an experimental apparatus and method for preparing the initial solidified shell of a square billet using permanent magnet stirring in a crystallizer. The apparatus includes a control system, a crucible, a heating furnace for heating the crucible, a permanent magnet stirring module for permanently stirring the molten steel in the crucible, a crystallizer, and a casting module matched with the crystallizer. The crystallizer is equipped with a copper mold. The control system is electrically connected to the heating furnace, the permanent magnet stirring module, and the casting module. The apparatus and method of this application can simulate the preparation of the initial solidified shell of a square billet under different permanent magnet stirring conditions in a crystallizer. It has the advantages of simple structure, easy maintenance, low cost, and diversified magnetic field modes, improving the controllability and quality of the cast billet. It can be used to study the effect of permanent magnet stirring in the crystallizer on the initial solidified shell of the square billet, to explore the optimal permanent magnet stirring conditions for different steel grades, and to provide guidance for the industrial application of permanent magnet stirring in crystallizers.

The utility model belongs to the technical field of material preparation, and particularly relates to a quick-cooling adjustable non-water-cooling movable copper mold, which comprises a temperature controller, a copper mold, thermoelectric pieces and two thermocouples, the copper mold comprises a left half copper mold and a right half copper mold which are matched with each other and tightly attached, and the thermoelectric pieces comprise a left thermoelectric piece and a right thermoelectric piece. The left thermoelectric piece and the right thermoelectric piece are arranged in the left half copper mold and the right half copper mold respectively, thermocouple containing holes are formed in the left half copper mold and the right half copper mold, thermocouples are placed in the thermocouple containing holes, and the device solves the problems that an existing copper mold is not adjustable in cooling speed, depends on a water cooling medium and is inaccurate in temperature control. Cooling water does not need to be used, meanwhile, the faults such as waterway blockage and water leakage are avoided, the production and maintenance cost is reduced, and meanwhile consumption of water resources is reduced; and the copper mold comprises the left half copper mold and the right half copper mold which are detachable, so that the material demolding is more convenient due to the detachable copper mold structure, and the production efficiency is improved.

This invention discloses an aluminum-based microalloyed, pitting-resistant bulk zirconium-based amorphous alloy and its preparation method. The zirconium-based amorphous alloy is composed of Zr, Ti, Cu, Ni, Be, and Al, with the following atomic percentage content: (Zr...) a Ti b Cu c Ni d Be e ) 100‑x Al x , among them, a+b+c+d+e=100, a=41.2, b=13.8, c=12.5, d=10, e=22.5, 0

The invention belongs to the field of metal material preparation, and discloses a Cu-Zn-Ti-Si alloy synergistically strengthened by a primary phase and a hypoeutectic structure and a preparation method for regulating components and cooling speed of the Cu-Zn-Ti-Si alloy. Comprising the following steps: (1) burdening; (2) in an argon atmosphere, heating pure copper until the pure copper is molten, and sequentially adding the copper-titanium intermediate alloy and the copper-silicon intermediate alloy; (3) after the intermediate alloy is completely melted, pressing the pure zinc block wrapped by the copper foil into the melt; (4) carrying out electromagnetic stirring, then raising the temperature to a target temperature, and carrying out flaming degassing treatment; and (5) after the melt is stable, pouring the melt into a preheated copper mold, monitoring a cooling curve in real time by using a built-in thermocouple, and accurately controlling the cooling rate by adjusting the preheating temperature and the pouring speed of the mold so as to obtain a target microstructure. The invention provides an effective technical approach for solving the problems that the matrix strength is insufficient and the hard phase is easy to fall off in the traditional single strengthening mode, and has important significance on the development of novel wear-resistant brass alloy.

A composition for inhibiting oxidation and corrosion of a copper surface and / or removing oxidation and corrosion byproducts on a copper surface contains at least one copper corrosion inhibiting compound, at least one polymer dispersant, and at least one chelating agent, wherein the at least one chelating agent is included in the composition in an amount of from 0.1% to 10% by weight of the composition. The composition is applied to the copper surface, either as is or in a solution with purified water, and thereby inhibits and / or cleans corrosion such as copper oxide from the copper surface. The composition may be included in cooling water provided to a copper mold in a continuous casting process, or in an offline cleaning or storage campaign.

The invention relates to the technical field of amorphous alloys, and discloses a method for improving plasticity of a zirconium-based amorphous alloy and a product thereof, and the method comprises the following steps: S1, mixing zirconium, nickel, copper and aluminum according to a mass ratio of 62: 12.5: 15.5: 10, and smelting to obtain a master alloy; s2, melting the mother alloy, sucking and casting the mother alloy into a copper mold, and quickly cooling to form an amorphous alloy bar; s3, the amorphous alloy bar is subjected to aging annealing treatment, the aging speed is increased, and then the amorphous alloy bar is cut into 4.5 mm small cylinders; and S4, the amorphous alloy small cylinder is put into a special mold, the upper surface and the lower surface of the small cylinder are treated through ultrasonic equipment, and the zirconium-based amorphous alloy with the room-temperature plasticity improved is obtained. The processing method disclosed by the invention is simple in process requirement, short in processing time and high in repeatability. The compression plasticity of the zirconium-based amorphous alloy which is subjected to aging treatment and then ultrasonic treatment is obviously superior to that of an as-cast zirconium-based amorphous alloy.

The invention discloses a high-capacity and long-life RE (La, Y, Pr)-Mg-Ni-based AB2 type hydrogen storage alloy for a Ni-MH battery and a preparation method of the hydrogen storage alloy, and relates to the technical field of hydrogen storage alloy materials, the alloy comprises the following components: La 0.9-x Y x Pr 0.1 MgNi 4-y-z-mCo y Al z Mnm, in the formula, x, y, z and m are atomic ratios and 0 lt; x is less than or equal to 0.2, 0lt; y is less than or equal to 0.5, 0lt; z < = 0.5, 0lt; m < = 0.5; the preparation method of the alloy comprises the following steps: smelting by induction heating under the protection of inert gas, and casting by a copper mold to obtain a master alloy ingot; the alloy ingot is placed in a quartz tube with a slit in the bottom, induction heating is conducted till the ingot is completely molten, liquid alloy is sprayed to the surface of a rotating water-cooling copper roller from the slit in the bottom of the quartz tube under the action of protective gas pressure, and a rapid quenching alloy thin strip is obtained; co, Al, Mn and multi-element rare earth elements La, Y and Pr are added, and a microstructure with nanocrystalline is formed through rapid quenching treatment, so that the electrochemical capacity of the alloy is greatly improved, and the cycle life of the alloy is greatly prolonged; the preparation process has the characteristics of easiness in mastering and suitability for large-scale production.

The application discloses a kind of high-hardness high-crystallinity transparent glass ceramics and preparation method thereof.Glass powder raw materials are weighed, after grinding, melt in platinum rhodium crucible, obtain glass liquid;Wherein the glass powder raw materials are composed of the following mass percentage components:ZnO 0~12wt%, MgO 6~18wt%, Al2O3 22~35wt%, SiO2 40~50wt%, Sb2O3 1~3wt%, nucleating agent 0.5~9wt%;Glass liquid is poured in preheated copper mould, and transparent glass block is obtained;Annealing, cutting and polishing, and the precursor glass with a thickness of 2mm is obtained;The precursor glass is placed between electrode sheets, first nucleation temperature at 700~900℃ is kept for 1~10h, then crystallization temperature at 900~1150℃ is kept for 2~8h, and transparent glass ceramic is prepared.The application realizes controllable crystallization by controlling crystallization time and temperature, and the crystallinity of glass ceramic is greater than or equal to 85%, and it has good optical quality and transmittance, and the transmittance of glass ceramic with a thickness of 1.5mm at 800nm is greater than or equal to 86.5%.

The invention relates to the technical field of precious metal materials, and provides an anti-tarnish silver ornament material and a preparation method thereof.The anti-tarnish silver ornament material comprises Ag, Cu, Zn, Pt and In. The Pt element is added into S925 silver, the silver content is kept to be 92.5 wt%, the element type and content in 7.5 wt% are changed, and by means of the unique raw material stacking sequence and the copper mold pouring technology, Pt segregation is effectively restrained, the alloy structure and performance are regulated and controlled, the alloy hardness and discoloration resistance are improved, and the service life of the alloy is prolonged. The problems that an existing alloy anti-tarnishing technology is high in cost, poor in anti-tarnishing capacity and low in hardness, and high-melting-point elements are prone to segregation are solved.

The present application relates to the field of corrosion-resistant alloy materials, and particularly relates to a FeNiCrAlTi high-entropy alloy resistant to liquid lead-bismuth corrosion and a preparation method thereof.The high-entropy alloy has the following chemical components in percentage by weight: Fe: 35-55%; Ni: 20-35%; Cr: 10-20%; Al: 5-15%; and Ti: 1-10%.The method prepares an alloy plate through arc melting and a copper mold casting method, homogenizes and rolls the alloy plate, and then anneals and ages the alloy plate to obtain a dual-phase structure with a face-centered cubic matrix and a body-centered cubic ordered precipitated phase, which makes the FeNiCrAlTi high-entropy alloy have high strength and toughness.In addition, the FeNiCrAlTi high-entropy alloy can form a protective Cr and Al oxide film in a liquid lead-bismuth environment, and the alloy contains a small amount of Ti element to promote the formation of a protective Al2O3 film, hinder the penetration of liquid lead-bismuth into the matrix, and make the alloy have excellent liquid lead-bismuth corrosion resistance.

The application discloses a kind of transmission type three-layer composite structure fluorescent ceramic for laser illumination and a preparation method thereof, and the fluorescent ceramic is three-layer composite structure from top to bottom in turn (Re 1‑x Ce x )3Al5O 12 Yellow-green fluorescent layer, transparent high-thermal-conductivity heat-dissipation layer, (A 1‑y Ce y )3(Al 1‑z B z )5O 12 Red fluorescent layer. The preparation method comprises the following steps: placing yellow-green fluorescent ceramic obtained by dry pressing into the bottom of a copper mold, pouring magnesium-aluminum spinel molten liquid into the preheated copper mold, placing red fluorescent ceramic above the molten liquid, and placing the composite structure material obtained after cooling in a muffle furnace for crystallization treatment to obtain the composite structure fluorescent ceramic of yellow-green fluorescent layer / transparent high-thermal-conductivity heat-dissipation layer / red fluorescent layer. The method can realize good connection and combination between different ceramic matrices, and has the advantages of simple process and low cost. The obtained transmission type composite structure fluorescent ceramic can maintain higher luminous intensity at high temperature, and excellent color rendering property can be obtained.

The application relates to an AB5 type alloy with high hydrogen storage performance and a preparation method and application thereof. 0.6 Ni 3.45 Mg a Nd b ; wherein a=0.2-0.4, b=0.1-0.2. The preparation method comprises the following steps: (1) ingredients are prepared according to the formula, and then mixed materials are obtained by smelting in a vacuum arc furnace; (2) the mixed materials obtained in the step (1) are absorbed into a water-cooled copper mold by a vacuum suction casting method to obtain a rod-shaped alloy, namely the obtained alloy. The high hydrogen storage performance alloy provided by the application optimizes the alloy performance by adjusting the element ratio and changing the preparation process, significantly improves the effective hydrogen release amount, hydrogen absorption and release kinetics and hydrogen absorption rate, and has the advantages of simple and rapid preparation method, low preparation cost, large-scale production and application.

The invention discloses a heat-resistant multi-element eutectic aluminum alloy and a preparation method thereof, belongs to the technical field of cast aluminum alloys, and aims to solve the problem of failure caused by rapid coarsening of a strengthening phase of an existing heat-resistant aluminum alloy at the temperature of 300 DEG C or above. The aluminum alloy comprises the following components in atomic percent: 0.4 to 1.3 at.% of Ce, 0.8 to 1.2 at.% of Ni, 3.5 to 4.5 at.% of Si, and the balance of Al and inevitable impurities, the microstructure of the alloy consists of an alpha-Al matrix, a eutectic Si phase and a quaternary eutectic phase. The preparation method comprises the following steps: melting pure Al at 740-760 DEG C, heating to 800-820 DEG C, adding the intermediate alloy, keeping the temperature, stirring for 3 hours to obtain a uniform melt, degassing with argon at 770-780 DEG C, and casting until a water-cooling copper mold is solidified. The alloy does not need subsequent heat treatment, the highest tensile strength at the room temperature is 268 MPa, the highest tensile strength at the high temperature of 300 DEG C is 99 MPa, the hardness retention rate exceeds 70% after 100 h of heat exposure at the temperature of 300-450 DEG C, the heat stability is excellent, the service requirement at the temperature of 300-400 DEG C can be met, the alloy is suitable for hot end components in the fields of automobiles and aerospace, and light weight and heat resistance are both achieved.

This invention belongs to the field of metallic materials technology and provides a low-alloy magnesium alloy with high corrosion resistance and high thermal stability, and its preparation method. The magnesium alloy composition by mass percentage is: aluminum: 0.8-1.5%, calcium: 0.2-0.5%, manganese: 0.4-0.8%, with magnesium as the added element, unavoidable impurities, and balance. The added element is a rare earth element, with a mass percentage of 0.5-1.0%, and the rare earth element is one or a combination of gadolinium and yttrium. The preparation method includes: alloy melting, water-cooled copper mold casting, stepped homogenization heat treatment, multi-pass multi-directional rolling forming, and recrystallization annealing. This invention achieves high corrosion resistance and high-temperature grain thermal stability of the magnesium alloy under the premise of low alloy element content (≤3.8wt%), with a corrosion rate of <0.35mg·cm in a 3.5wt% sodium chloride aqueous solution. ‑2 ·d ‑1 Furthermore, it can maintain a grain size of <7.5μm under high-temperature heat treatment at 500℃ for 1 hour.

The invention discloses a bar high-speed solidification experiment device which comprises a cooling copper mold with a circular section, the cooling copper mold is connected with a shell through a second flange, the shell is connected with a sealing cover through a first flange, the sealing cover is provided with an observation window, the first flange is provided with an air vent and a thermocouple interface, and three induction heating coils are fixed in the shell. A rod-shaped quartz crucible is arranged in the induction heating coil, a second flange is arranged at the bottom of the quartz crucible, a perforated molybdenum baffle rotating in an electric control mode is arranged in the second flange, a round hole is formed in the perforated molybdenum baffle, the size of the round hole is larger than the diameter of the quartz crucible, and a liquid quenching experiment is conducted by controlling the relative position of the perforated molybdenum baffle and the quartz crucible during solidification. The second flange is provided with an air vent, and gallium-indium-tin alloy liquid is arranged in the cooling copper mold. The bar high-speed solidification experiment device is simple in structure, convenient to use, capable of achieving high-speed solidification sample preparation of multiple alloys in one-time research, and especially suitable for high-speed solidification preparation of high-viscosity alloys.

The invention discloses oil shale residue / coal gasification residue glass ceramics as well as a preparation method and application thereof, and relates to the technical field of glass ceramics. The problems that in the prior art, traditional microcrystalline glass is high in cost, large in energy consumption and low in solid waste resource utilization rate, and single oil shale residue-based microcrystalline glass is unstable in structure, not easy to control crystallization behaviors, poor in heavy metal curing capacity and limited in application range are solved. The preparation method comprises the following steps: pretreating and mixing oil shale slag and coal gasification slag, adding a nucleating agent TiO2 and an auxiliary component H3BO3, grinding, melting, pouring a melt into a preheated copper mold, and carrying out compression molding on the melt to prepare precursor glass; annealing the precursor glass to eliminate internal stress, and preserving heat to obtain base glass; the base glass is polished, rust on the surface of the glass is removed, and the influence of the rust on glass crystallization is eliminated; and then carrying out heat treatment to obtain a microcrystalline glass sample. The method can be applied to the field of power transmission engineering.

The invention discloses a boron-containing high-toughness multi-component metal material and a preparation method thereof, and belongs to the technical field of novel materials and preparation thereof. The preparation process mainly comprises the following six steps: step 1, weighing ferroboron particles (the boron content is 18% by mass) with the purity of more than 99.9%, Fe particles, Ni particles, Cr particles, Al particles and Ti particles; secondly, under high vacuum, metal particles are melted through an electric arc, and repeated melting is conducted to ensure uniformity; thirdly, the molten material is sucked into a water-cooled copper mold and rapidly cooled to the room temperature; fourthly, the cast ingot is subjected to solid solution heat treatment at the temperature of 1100 DEG C; fifthly, the cast ingot is subjected to multi-pass rolling at the room temperature; and sixthly, the rolled blank is subjected to temperature control heat treatment. According to the FeNiCrAlTiB metal material prepared through the method, the mechanical property of the material is improved through room-temperature rolling and temperature control heat treatment, the comprehensive mechanical property with high strength and plasticity is obtained, and the FeNiCrAlTiB metal material has large application potential.

This invention discloses a composite mold for casting copper smelting anode plates. The mold includes a composite mold body with a segmented structure, comprising a lower copper mold body and an upper cast steel mold body. The copper mold body and the cast steel mold body are fixedly connected by a dovetail groove inlay structure. The copper mold body is configured as a permanent section, while the cast steel mold body is configured as a replaceable section. The ears of the cast steel mold body are movable and detachably connected to the side frame of the cast steel mold body by bolts. This invention, by employing a copper-steel composite structure, fully utilizes the excellent thermal conductivity of copper and the good structural strength of steel, effectively solving the problems of surface cracking, frame cracking, and ear deformation common in existing molds. This significantly extends the service life of the mold, reduces maintenance costs, and improves the casting quality of the anode plate.

The invention belongs to the technical field of thermal management materials, and particularly relates to a high-strength and high-thermal-conductivity Al-20Si alloy, a preparation method and application. According to the method, Al-P intermediate alloy refining and copper mold rapid cooling are combined to cooperatively regulate and control the size of primary silicon (smaller than 10 microns), then eutectic silicon (the aspect ratio is smaller than 2) is spheroidized through solid solution aging treatment, Si atoms are fully separated out through aging, and lattice distortion of an aluminum matrix is reduced. The heat conductivity of the obtained alloy is larger than or equal to 200 W.m <-1 >. K <-1 >, the tensile strength is larger than or equal to 140 MPa, the alloy is suitable for electronic packaging, 5G communication and other heat dissipation scenes, and compared with traditional casting and powder metallurgy processes, the alloy has the potential of being low in cost and high in efficiency and has the industrialization potential.

The application belongs to the technical field of processing of electrical contact material and noble metal alloy, and particularly relates to a gold-silver-copper-manganese alloy wire and a forming method thereof. Gold and silver are used as a matrix, copper, manganese and rare earth element yttrium are added, a water-cooled copper mold casting process is adopted, after homogenization treatment, rolling and cold-drawing forming, stress relief annealing is carried out on the gold-silver-copper-manganese alloy wire, and then the gold-silver-copper-manganese alloy wire is cleaned and electrolytic polished. The gold-silver-copper-manganese alloy wire prepared by the application not only has high tensile strength and long service life, but also has excellent electric conductivity, and has important market value.

The invention provides an automatic non-consumable electric arc alloy smelting device which comprises a control system, an industrial robot, a smelting cavity, a transition cavity, a plurality of copper mold trays and a power source. Each copper mold tray is provided with a plurality of crucibles used for metal raw materials. The transition cavity is used for placing a copper mold tray and carrying out gas replacement or vacuumizing; the control system is used for controlling the industrial robot to put the copper mold tray into the transition cavity, taking the copper mold tray out of the transition cavity, controlling the transition cavity to open the bin door and controlling the smelting cavity to conduct electric arc smelting. The smelting cavity is provided with a pre-trained visual identification system, a mechanical arm, an electrode stem, an automatic fastening device and an overturning module, and the visual identification system is used for identifying the position and the melting point of each metal raw material in the crucible under the control of the control system; and the electrode rod is indicated to carry out electric arc melting on the multiple metal raw materials in sequence according to the recognition result and the melting point sequence from high to low.