983 results about "Light metal" patented technology

An iron golf club head comprised of a head body 10 made of light metal such as titanium and containing a plurality of weight members 16. The head body 10 includes a front surface 13, a rear surface 13a, a cavity 12 disposed at the rear surface 13a, and a plurality of holes 15 disposed in the head body 10 at the rear surface 13a between a lower side wall 12b of the cavity 12 and a sole 14 of the head body 10 at predetermined intervals between a toe part 17 and a heel part 18. The center axis of each hole 15 is oriented substantially parallel to the sole 14 of the head body 10. The weight members 16 are press-inserted into the holes 15 in a direction going toward the front surface 13 of the head body 10 to a predetermined depth. Each weight member 16 is made of a material having a heavier specific weight than the light metal used for the aforesaid head body 10. Tungsten or tungsten alloy can be used as the material for the weight members 16. The combined weight of the weight members 16 does not exceed forty percent of the weight of the entire head.

Light metal/CFRP-made structural members which are characterized in that they are structural materials in which a CFRP material is stuck to the surface of a light metal material via an adhesive agent layer of thickness at least 10 mum and up to 500 mum, and the volume resistivity of the adhesive agent layer between said metal material and said CFRP material is at least 1x1013 OMEGA.cm and, furthermore, the adhesive strength at room temperature is at least 15 MPa. In accordance with the present invention, since conventional light metal/CFRP structural materials can be made lighter and, furthermore, since the resistance to galvanic corrosion is outstanding and it is possible to markedly enhance the strength and the impact energy absorption performance, the development of applications and large-scale expansion into new fields becomes possible. Weight reduction and enhancing the durability and reliability of structures also makes a considerable contribution in terms of environmental protection.

An uncycled electrode for a non-aqueous lithium electrochemical cell including a lithium metal oxide having the formula Li_(2+2x)/(2+x)M′_2x/(2+x)M_(2-2x)/(2+x)O_2-δ, in which 0≦x<1 and δ is less than 0.2, and in which M is a non-lithium metal ion with an average trivalent oxidation state selected from two or more of the first row transition metals or lighter metal elements in the periodic table, and M′ is one or more ions with an average tetravalent oxidation state selected from the first and second row transition metal elements and Sn. Methods of preconditioning the electrodes are disclosed as are electrochemical cells and batteries containing the electrodes.

The present invention relates to an anode material excellent in its charging and discharging characteristics and a secondary battery excellent in its charging and discharging cyclic characteristics. An anode active material is used for a nonaqueous electrolyte secondary battery including an anode having the anode active material, a cathode having a cathode active material and a nonaqueous electrolyte. The capacity of the anode is expressed by the sum of a capacity component obtained when light metal is doped and dedoped in an ionic state and a capacity component obtained when the light metal is deposited and dissolved. The light metal includes an anode base material capable of doping and dedoping the light metal in an ionic state and a fibrous material having an electric conductivity.

An uncycled preconditioned electrode for a non-aqueous lithium electrochemical cell including a lithium metal oxide having the formula Li_(2+2x)/(2+x)M′_2x/(2+x)M_{(2−2x)/(2+x)}O_2−δ, in which 0≦x<1 and δ is less than 0.2, and in which M is a non-lithium metal ion with an average trivalent oxidation state selected from two or more of the first row transition metals or lighter metal elements in the periodic table, and M′ is one or more ions with an average tetravalent oxidation state selected from the first and second row transition metal elements and Sn, and an uncycled electrode of the formula xLi₂M′O₃.(1−x)LiMO₂, in which 0≦x<1, and in which M is a non-lithium metal ion with an average trivalent oxidation state selected from two or more first-row transition metals or lighter metal elements in the periodic table, and M′ is one or more ions with an average tetravalent oxidation state selected from the first- and second-row transition metal elements and Sn, the electrode being preconditioned in a proton-containing medium with a pH<7.0. Methods of preconditioning the electrodes are disclosed as are electrochemical cells and batteries containing the electrodes.

There is provided method for joining dissimilar metals of a steel product and a light metal product with each other, wherein the light metal product and a rivet made of an iron-base metal are connected with each other beforehand in a previous process preceding spot welding, and subsequently, the rivet and the steel product are spot welded with each other. Then, a cavity for use in clinching the light metal product is formed, and upon the stem of the rivet is embedded into the light metal product to penetrate therethrough, light metal is caused to undergo plastic flow into the cavity of the rivet, for clinching the light metal product to be thereby clinched with the rivet whereupon spot welding for forming a weld nugget only within the scope of an interface between the stem of the rivet, and the steel product is carried out. Thus, the present invention can implement the spot welding between iron—iron similar metals, without a constraint on, and a problem with conditions applicable to the spot welding and a high joint strength can be obtained owing to the synergistic effect of the spot welding and connection by clinching of the aluminum alloy product with the iron-base rivet, added thereto.

A method for the manufacture of heavy metal powder-based frangible projectiles which are relatively easy and inexpensive to manufacture and which exhibit a selectable variety of desirable physical and/or performance properties. The projectiles of the present invention are powder-based, preferably including predominately tungsten powder as a heavy metal, particularly a tungsten powder which includes a predominate portion of finely sized particles. Lighter metal powders, also preferably having a predominate portion of finely sized particles, may be employed in combination with the tungsten to achieve certain desired results. Importantly, the present inventor has found that inclusion of a non-metal matrix powder, also of finely sized particles, in a mixture of a heavy metal powder, such as tungsten powder, and a light metal powder, may be employed in a variety of combinations to produce a projectile which is fully frangible upon striking a target (no ricochet), or which is frangible after either partial or full penetration of a selected target, either a semi-solid (e.g., a gel block) or a solid (e.g., a ¼ inch thick cold rolled steel plate at an angle of about 90 degrees).

A high efficiency, low maintenance single stage or multi-stage centrifugal compressor assembly for large cooling installations. The assembly is highly efficient by virtue of a variable frequency drive (VFD) that drives a permanent magnet motor and matches compressor speed with compressor load, a direct drive impeller that eliminates gearing losses, and magnetic bearings that reduce frictional losses. The back-emf produced by the motor provides an intermediate power source for the magnetic bearings in the event of a loss of electrical power. A cooling system provides direct cooling of the rotor with gas refrigerant, and cooling of the stator with liquid refrigerant. Modular construction allows the compressor to be retrofit with upgrades. An inlet guide vane system operates without need for oil lubrication. The use of light metal castings and elimination of gearing reduces the weight to one-third or less of comparably powered conventional units.

A method for manufacturing a clad component in which a cladding workpiece having a section comprising a first metal onto which a number of metal beads are rigidly bonded is inserted into a mold. A molten second metal is poured into the mold, where it flows about and covers the beads and is then permitted to cool. This process forms an article made of the second metal, which is mechanically interlocked to the beads, clad by the first metal. Typically the first metal is a high-melting point strong metal, such as steel, and the second metal is a lower-melting point, weaker, but lighter metal, such as aluminum.

A method for the manufacture of a projectile for small-bore weapons ammunition comprising the steps of producing a plurality of compacts from a mixture of a heavy metal powder and a light metal powder at room temperature, and without further treatment of the compacts, introducing the compacts into a metal jacket one at a time, including pressing each compact into the jacket with a pressure sufficient to ensure substantially complete filling of a respective portion of the jacket by each compact before introducing a further compact into the jacket. The compacts fill less that the entire volume of the jacket, leaving a portion of the jacket void of compacts. Prior to the pressing of the last of the compacts introduced into the jacket, a disc having an outer diameter substantially equal to the internal diameter of said jacket adjacent the open end thereof is introduced into the jacket. Following pressing the last introduced compact and the separator dics, that portion of the jacket adjacent its open end is infolded toward the longitudinal centerline of the jacket to at least substantially close the open end of the jacket.A unique projectile and a round of ammunition formed with the projectile are disclosed.

The invention relates to a preparation method for a light metal superhydrophobic surface, in particular to a light metal surface with a superhydrophobic property and corrosion and wear resistance. The preparation method comprises the following steps: a layer of porous oxidation film is formed on the surface through anodic oxidation of the light metal surface first; the surface is modified by a low-temperature plasma treatment technique; and at last, the superhydrophobic surface is formed on the surface of the oxidation film through chemical modification. The method does not require complex and expense equipment and has a simple process, good repetitiveness, a contact angle of the surface and water up to 153 to 170 degrees as well as good corrosion and wear resistance.

A mask that facilitates OLED processing and is capable of being made cost-effectively is presented. The mask includes a mask frame, a connection frame fastened to the mask frame, a mask plate welded to the connection frame, and a plurality of fastening members that fasten the connection frame to the mask frame. The connection frame, which is capable of being welded to the mask plate, is interposed between the mask plate and the mask frame to create a tension in the mask plate. Thus, it is possible to manufacture a shadow mask that does not sag. The mask frame may be formed with a light metal such as aluminum.

The invention provides a dissimilar metal spot welding system of light metal and coated steel and a welding method thereof, wherein the system comprises a CMT (cold metal transfer) arc welding system, an air bottle, a robot control module, a robot and a clamping device; the arc welding system is connected to the robot control module and used for transmitting a welding control signal; the air bottle is communicated with the CMT arc welding system; the robot control module is connected to the robot for transmitting a control signal of the movement of the robot. In the invention, a spot melting soldering joint is formed between light metal and coated steel to realize the spot connection of the light metal and the coated steel; the serious deformation of the joint during continuous seam welding is solved while the connecting quality of dissimilar metal is ensured; traditional vehicle body part joints primarily using resistance spot welding process are not influenced; and the design and manufacture costs of vehicle bodies are greatly reduced.

The invention discloses a micro-arc oxidation electrolyte and a micro-arc oxidation method. The micro-arc oxidation electrolyte comprises the following components: a basic solution, a wear-resisting agent, a pore sealing agent and a dispersing agent, wherein the basic solution is phosphate and silicate aqueous solution of pH 8-12, the wear-resisting agent is graphite powder, the pore sealing agent is silica powder or alumina powder, and the dispersing agent is polyoxyethylenealkylphenol ether. The micro-arc oxidation electrolyte of the invention is simple in composition, and easy in control. Light metal parts to be plated are subjected to micro-arc oxidation using the micro-arc oxidation electrolyte of the invention, and are directly subjected to pore sealing treatment in the micro-arc oxidation process without after-treatment. The process of the invention is simple, and obtained micro-arc oxide film layer is high in hardness, and is good in abrasion resistance and corrosion resistance.

The invention discloses a buffering energy-absorbing structure which comprises a hollow metal thin-wall structure, wherein a light metal foam material or metal cellular material is filled in the hollow metal thin-wall structure; the hollow metal thin-wall structure is fixedly connected with the filled light metal cellular material through binding or brazing, thereby forming the complete buffering energy-absorbing structure; the density of the filled metal foam material along the longitudinal direction is changed in a gradient form; and an aperture size or cellular wall thickness of the filled metal cellular material along the longitudinal direction is changed in the gradient form. Compared with the traditional energy-absorbing structure, the buffering energy-absorbing structure has the advantages that the deformation mode is more stable, the energy-absorbing efficiency is higher, the weight of the energy-absorbing structure is effectively reduced, the impact force during the whole energy-absorbing process is stable and the crashing safety of the energy-absorbing structure is greatly increased. The buffering energy-absorbing structure served as a direct impact energy-absorbing structure of an automobile can greatly increase the direct impact safety of the automobile and can reduce the casualties.

An exemplary housing includes a light metal base and a ceramic film. The light metal base has an outer surface. The ceramic film is formed on the outer surface of the light metal base by micro-arc oxidation process. A method for making the present housing is also provided.

In a pulley assembly, an annular joint member made of a high polymer material is disposed between an outer ring of a bearing and a light metal pulley. The joint member has a coefficient of thermal expansion larger than that of the pulley. The outer ring has a coefficient of thermal expansion smaller than that of the pulley. The pulley has an annular boss, an annular rim, and a plurality of spokes which have side faces each consisting of a surface parallel to an axial direction of the pulley. Front faces of the spokes are positioned on one identical imaginary surface of revolution, and rear faces of the spokes are also positioned on one identical imaginary surface of revolution.

The invention relates to a light metal surface laser impact micronano particles injection reinforcing method, comprising the following steps: 1) removing the oxide layer probably existing on the surface of the light metal by a mechanical polishing or chemical corrosion method, then grinding and polishing with sand paper, and finally cleaning the surface of the light metal alloy with acetone or alcohol; 2) precoating the micronano particles on the surface of the light metal with inorganic bonding agent, recoating a layer of black paint on the surface of the micronano particle coating layer to serve as the absorption layer of laser impact after drying, and drying naturally; 3) impacting the absorption layer and the micronano particle layer with high-energy short pulse laser, and utilizing K9 glass or running water as a restriction layer during laser impact; and 4) soaking the micronano particle coating layer processed by acetone, and then removing the absorption layer through washing with running water or ultrasonic washing to obtain the micronano particle injection reinforcing layer. The invention integrates the actions of laser impact reinforcement, nano particle reinforcement and nano particle reinforcement, can dramatically improve hardness, abrasion resistance and fatigue resistance property of light metal surface layer, and has wide application prospect.

A brake disc structure with composite materials is provided, which includes a disc-shaped inner disk made of a light metal material, and at least two outer disks respectively stacked and combined with the upper and lower surfaces of the inner disk through a metallurgical reaction process. The outer disks are disc-shaped and made of a ferrous metal material. Moreover, an axle hole is opened in the center of each outer disk for being fitted on a hub and penetrates the inner disk, thereby constituting the brake disc structure of composite materials having properties of abrasion resistance and light weight.