443 results about "Liquid alloy" patented technology

Methods and assemblies for the construction of liquid-phase alloy nanoparticles are presented. Particle formation is directed by molecular self-assembly and assisted by sonication. In some embodiments, eutectic gallium-indium (EGaIn) nanoparticles are formed. In these embodiments, the bulk liquid alloy is ultrasonically dispersed, fast thiolate self-assembly at the EGaIn interface protects the material against oxidation. The assembly shell has been designed to include intermolecular hydrogen bonds, which induce surface strain, assisting in cleavage of the alloy particles to the nanoscale. X-ray diffraction and TEM analyses reveal that the nanoscale particles are in an amorphous or liquid phase, with no observed faceting.

The present invention relates to a high-strength high-conductivity copper base alloy material and its preparation method. Its composition comprises (wt%) 0.01-2.5% of Cr, 0.01-2.0 % of Zr, 0.01-2.0% of one or Y, La and Sm and the rest is Cu, and its preparation method includes the following steps: vacuum smelting the above-mentioned components to obtain the liquid alloy of the above-mentioned components, atomizing and quickly solidifying, making powder, pressing to make blank, sintering and extruding. Said alloy material has good electric conductivity, good heat conductivity, high high-temp. strength, high softening temp. and high conductivity.

Techniques are described for lap welding steel articles with a corrosion resistant coating. First and second steel members with a coating comprising zinc are welded together in a lap region. A metal selected to have a melting temperature below the boiling temperature of zinc, and to form a liquid alloy with the zinc, which alloy has a boiling temperature above the melting temperature of steel, is added to the lap region.

The invention relates to the precision casting field, in particular to a preparation method of a low pressure guide connected hollow blade. The preparation method comprises the following steps: firstly quartz glass powder, mullite powder, a plasticizer and an additive are mixed to stir evenly, the mixture is filled in a core pressing device and prepared into a mother core; secondly quartz glass powder is filled in a charging bucket, the mother core is inserted in the powder, the quartz glass powder is filled in the entire charging bucket to sinter and prepare a core; the prepared core is placed in the corresponding place of a blade mould to fill wax, the mould is preheated to perform pressing, finally the obtained wax mould is dressed; then a pouring system shell is prepared; and the pouring system shell is preheated before pouring, a K417G alloy is used as the raw material, then the alloy raw material is refined at 1570+/-10 DEG C for no less than 3 minutes, finally the liquid alloy steel is poured in the preheated pouring system shell, the pouring time is 3-5 seconds, and the finished product low pressure guide connected blade casting is formed.

The invention relates to liquid alloy, a preparing method of the liquid alloy and application of the liquid alloy. The liquid alloy comprises the components, by weight part, of 1 part to 90 parts of gallium (Ga), 1 part to 75 parts of indium (In) and 1 part to 40 parts of tin (Sn). The liquid alloy has the superconductivity property in the critical temperature and belongs to nonideal type II superconductors. In addition, the liquid alloy has the excellent characteristics of being convenient to use, wide in application scope, low in cost, free of poison, good in mobility and excellent in electrical conductivity and heat conduction. The preparing method of the liquid alloy also is simple and high in efficiency, achieves environment friendliness and is economical. The liquid alloy can further by widely applied to electric connection of electronic components, electronic circuit boards and self-repairing conductors.

The invention relates to Group 1 metal/silica gel compositions comprising silica gel and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0, I, II, and III materials. These materials differ in their preparation and chemical reactivity. Each successive stage may be prepared directly using the methods described below or from an earlier stage material. Stage 0 materials may, for example, be prepared using liquid alloys of Na and K which are rapidly absorbed by silica gel (porous SiO₂) under isothermal conditions, preferably at or just above room temperature, to form loose black powders that retain much of the reducing ability of the parent metals. When the low melting Group 1 metals are absorbed into the silica gel, a mild exothermic reaction produces Stage I material, loose black powders that are indefinitely stable in dry air. Subsequent heating to 400° C. produces Stage II materials, which are also loose black powders. Further heating above 400° C. forms Stage III material with release of some Group 1 metal. It is believed that Stage I, II and III materials represent reductions of the silica gel after absorption of the Group 1 metal. Preferred Group 1 metal/silica gel compositions of the invention are those containing sodium, potassium, or sodium-potassium alloys with sodium and sodium-potassium alloys being most preferred. Each stage of the Group 1 metal/silica gel composition of the invention may be used as a reducing agent reacting with a number of reducible organic materials in the same manner known for alkali metals and their alloys.

The invention relates to a pulping-shaping detachable aluminum alloy rheologic shaping method, wherein it also provides a quick prepare system of semi-solid alloy pulp. Said method comprises that: preparing heated liquid alloy; preheating mixing pot to 350-400Deg. C; filling heated flux into said semi-solid alloy pulp mixing pot; putting pot into electromagnetic mixer prepare room; starting the mixer to electromagnetically mix; when the mixing is end, taking out the pot, pouring the alloy pulp into the injection cylinder of casting machine; injecting and shaping at 220Deg. C of mould. In said invention, the mixer and shaping device are separated. And it has high efficiency.

This invention relates to electroconductive liquid alloy, the design and method for preparing the room temperature liquid and electroconductive alloy GalnSn and GalnSnAg. A metal with its purity being greater than 99.99% is selected and thein is smelted to produce the main alloy Galn. And then, Sn(or Sn and Ag) is (are) added into above mentioned Galn to produce GalnSn or GalnSnAg alloy. The product can be used in fields such as: oral surgery, electronics material and refrigeration system.

A liquid-alloy temperature carrier used in thermometer of mercury free type is featured as applying low melting point of Ga-In-Sn-K-Na-Li alloy as stabilized liquid temperature carrier at temperature of 5-42DEG C; preparing said alloy by wt% as Ga of 65-80, In of 3-20,Sn of 1-15, Na and K of 0.001-5 and Li of 2.0; applying Na-K weight ratio as 21.6:78.4. The method for preparing said thermometer is also disclosed.

The present invention relates to a high strength nickel base corrosion resistance alloy, which has the following components, by mass, 0.06-0.10% of C, less than or equal to 1.0% of Si, less than or equal to 1.50% of Mn, 19.0-23.0% of Cr, less than or equal to 0.035% of P, less than or equal to 0.001% of S, less than or equal to 0.020% of N, 29.0-35.0% of Ni, 0.15-0.6% of Ti, 0.15-0.6% of Al, 0.001-0.005% of Mg, less than or equal to 0.5% of Cu+O, and the balance of Fe and unavoidable impurities. The nickel base corrosion resistance alloy has a fully austenite structure, and forms MgO and/or MgO.Al2O3 particles with a diameter of about 10 nm-1 mum and a number of 30-50/mm<2> in a liquid alloy so as to refine the diameter of the initial solidified grains of the alloy continuous casting billet to about 0.5-1.0 mm. In addition, a vertical continuous casting process is adopted to produce, such that surface cracks of the continuous casting billet are avoided; and the grain size of the final product is controlled to the 3.5-4 level, such that the product has characteristics of excellent mechanical property, excellent high temperature creep resistance, and the like, and is suitable for manufacture of parts of furnace devices, heat exchangers, steam-powered turbines, and the like.

The invention provides a room-temperature liquid metal battery which comprises an anode, a cathode, an interlayer and a battery shell. The anode is made of a gallium-based or mercury-based liquid alloy, the cathode is made of an alkali metal liquid alloy, the interlayer is ionic liquid, and the anode, the interlayer and the cathode are arranged in the battery shell from bottom to top. The cathode is made of the alkali metal liquid alloy, the anode is made of the gallium-based or mercury-based liquid alloy, electrolyte is the ionic liquid, and the three materials are liquid at room temperature, so that heating and heat insulating devices are not needed, and the room-temperature liquid metal battery can be realized really.

The invention provides an amorphous magnesium alloy differential pressure injection molding method and equipment thereof and pertains to the technical field of alloy preparation engineering and equipment. A mould (10) is cooled; a mother alloy is added in from the upper end of a compression chamber (7); an upper compression bar (3) goes down to the place over the compression chamber (7); a working cavity (12) is vacuumized by a vacuum pump (16); the compression chamber (7) is heated by a heater coil (6) so as to cause the mother alloy to be melted; a quick-opening valve (19) is opened, the upper compression bar (3) and a lower compression bar (4) go down for carrying out the injection, and the liquid alloy is injected into a die cavity of a mould (10); the liquid ally is solidified and the amorphous magnesium alloy is obtained; the operation of injection is finished. The equipment includes the upper compression bar (3), the lower compression bar (4), the heater coil (6) and a working chamber (12), etc. The method and the equipment of the invention have high heating efficiency; the molten bath of magnesium alloy can be cooled quickly; the operation of differential pressure injection is simple, the applicability is better, the working is stable and reliable, and the process is easy to be controlled, thus being very suitable for preparing bulk amorphous magnesium alloy.

The invention discloses a stretchable flexible functional conductor. The stretchable flexible functional conductor comprises a hollow elastic fiber and a liquid metal. The hollow elastic fiber is an elastic fiber, acting as a conductor shell and having a hollow circular flow passage inside. The liquid metal is used as a conducting medium of the conductor, is encapsulated in the circular flow passage of the hollow elastic fiber, and is composed of a liquid metal tantalum and a liquid alloy of eutectic indium and tin thereof. The stretchable flexible functional conductor of the invention has a sensitive resistance-deformation response characteristic, the resistance change of the conductor at 0 to 140% tensile deformation can be clearly detected and the resistance response characteristic is exhibited at 0.1 V, so that the stretchable flexible functional conductor is allowed to have important application prospects in human limb movement detection.

The invention discloses a gallium-based liquid alloy material and a preparation method thereof, the gallium-based liquid alloy material is composed of the following components: by mass, 70-85% of gallium, 10-15% of indium, 1-12% of tin, 2-6% of bismuth and 1-6% of zinc. In accordance with the ratio, the metal gallium is placed in a sealed flask, and then is placed in a water bath pot for heating to 50 DEG C, in a constant temperature state, the gallium in the flask is in a liquid state; then the indium, the tin, the bismuth and the zinc are put into the glass ware holding the liquid metal gallium; under argon protection, the indium, the tin, the bismuth and the zinc are stirred with a glass rod to completely melt into a liquid and evenly mix, and then the gallium-based liquid alloy material is obtained by thermal insulation for 10 minutes at 50 DEG C. The gallium-based liquid alloy material melting point is as low as about 1 DEG C. When in practical use, the radiator pipe cold end temperature can be as low as about-2 DEG C.

It is a rapid measurement apparatus for liquid metal and liquid alloy surface tension and it relates to metallurgy and foundry field. The power input end (1-1) is connected with output end of (11) power; the down end of (1-2) is connected with (4) and the upper end of (4-2) is connected with (4-1); the two gas-in end of (5) is separately connected with vent of (6)(6-1); the controlled end of (6) is connected with output end of (11); the controlled end of (5) is connected with output end of (11); the output end of (2) is connected with input end of (11) through (7); the output end of (3) is connected with input end of (11) through (11); the output end of (11)is connected with input end of (9); the output end of (12)is connected with input end of (11).

The invention provides a device and method for preparing pure titanium with liquid alloys as electrodes. The device comprises a first electrolysis cell, a second electrolysis cell and a bottom liquid alloy communicating hole; the first electrolysis cell comprises a CaCl2 transition anode, a Na2O-SiO2-TiO2 melt and a cathode Ti-Cu liquid alloy; the second electrolysis cell comprises an anode Ti-Cu alloy and a NaCl-KCl-TiClx melt; and the cathode Ti-Cu liquid alloy and the anode Ti-Cu alloy are connected through the bottom liquid alloy communicating hole. According to the device and method for preparing the pure titanium with the liquid alloys as the electrodes, oxygen and titanium elements in raw material TiO2 are separated, and after a titanium alloy is obtained, the titanium alloy can serve as an anode to perform electrolytic refining to obtain the pure titanium; and the process procedure is shortened, the energy consumption is reduced to the maximum extent, and it is achieved that the pure titanium is prepared in a molten salt electrolysis manner of industrialized and continuous production.

The invention relates to Group 1 metal/silica gel compositions comprising silica gel and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0, I, II, and III materials. These materials differ in their preparation and chemical reactivity. Each successive stage may be prepared directly using the methods described below or from an earlier stage material. Stage 0 materials may, for example, be prepared using liquid alloys of Na and K which are rapidly absorbed by silica gel (porous Si02) under isothermal conditions, preferably at or just above room temperature, to form loose black powders that retain much of the reducing ability of the parent metals. When the low melting Group 1 metals are absorbed into the silica gel, a mild exothermic reaction produces Stage I material, loose black powders that are indefinitely stable in dry air. Subsequent heating to 400 DEG C produces Stage II materials, which are also loose black powders. Further heating above 400 DEG C forms Stage III material with release of some Group 1 metal. It is believed that Stage I, II and III materials represent reductions of the silica gel after absorption of the Group 1 metal. Preferred Group 1 metal/silica gel compositions of the invention are those containing sodium, potassium, or sodium-potassium alloys with sodium and sodium- potassium alloys being most preferred. Each stage of the Group 1 metal/silica gel composition of the invention may be used as a reducing agent reacting with a number of reducible organic materials in the same manner known for alkali metals and their alloys.

The invention discloses application of a gallium liquid metal material to a teletransmission pressure and different pressure transmitter. The pressure and different pressure transmitter is provided with a capillary tube filled with a liquid medium, and the whole or part of the capillary tube is filled with the gallium liquid metal material. According to parameter requirements of the gallium liquid metal material, the heat conductivity is larger than 10 W/m*k, the kinematic viscosity is (5*10-8-9*10-8) m<2>/s, the melting point is lower than 15 DEG C, and the boiling point is larger than 1000 DEG C. The gallium liquid metal material is gallium liquid metal or gallium-based liquid alloy metal. The application has the beneficial effects that the gallium liquid metal material with the very high nominal melting point is used on the pressure and different pressure transmitter, the gallium liquid metal material is not liable to be vaporized even the nominal high-temperature boundary point is approached, the gallium liquid metal material still has very good fluidity, the performance cannot be affected, and sensitivity and precision of a measuring instrument are maintained. The highest use temperature of the gallium liquid metal material can be 1200 DEG C or higher, and the gallium liquid metal material can also be used on high-temperature and negative-pressure occasions.

The invention relates to a preparation method of an aluminum-titanium-boron wire grain refiner. The preparation method is implemented by continuous cast rolling after smelting and specifically comprises the following steps: (1) melting: adding a pure aluminum ingot into a crucible furnace, melting into liquid aluminum, and heating; (2) alloying: sequentially adding potassium chloride, potassium fluotitanate and potassium fluotitanate into the liquid aluminum in the liquid aluminum heating process in the step (1), and heating while stirring until the reaction is complete, thereby obtaining liquid alloy aluminum; (3) stirring, degassing and deslagging: transferring the liquid alloy aluminum prepared in the step (2) into an industrial-frequency core-free holding furnace, and stirring and degassing; and (4) continuous cast rolling: transferring the deslagged liquid aluminum into a mold, carrying out rubber filtration, crystallizing the wheel die cavity, carrying out continuous rolling by a continuous rolling machine, and taking up to obtain the aluminum-titanium-boron wire. The preparation method avoids the phenomenon of blistering or loosening since the liquid aluminum is oxidized or absorbs gas, and enhances the elongation percentage of the aluminum-titanium-boron wire.