30results about "Cold pressure" patented technology

The invention discloses a pressure sensor patch pressurization device. The device comprises a base, two vertical plates are symmetrically arranged on the top wall of the base, the top ends of the twovertical plates are jointly provided with a transverse plate, a motor is arranged on the top wall of the transverse plate, a bevel gear is arranged at the driving end of the motor, the side wall of the bevel gear is meshed with a bevel gear rod, the bevel gear rod penetrates through the top wall of the transverse plate and extends to the lower side of the transverse plate, a trapezoid block is arranged at the bottom end of the bevel gear rod, a rotary groove is formed in the top of the trapezoid block, the bottom end of the bevel gear rod penetrates through the top wall of the trapezoid blockand extends into the interior of the rotary groove. According to the device, the structure is simple, the operation is convenient, by accurately controlling the pressure applied to a sensor patch, thesituation that zero-position output is inconsistent after the sensor patch is installed can be avoided, so that the sensor does not need to be corrected, and the cost output is saved.

The invention discloses a cold welding process repairing method for an oil field storage tank, without hot work, which comprises the steps that according to different construction conditions, surfacetreatment is conducted on the periphery of a leakage point of an oil field storage tank, and surface paint, rust, greasy dirt and a corroded loose layer on the periphery of the leakage point are completely removed; cold welding repair glue is prepared; gluing is conducted: the prepared cold welding repair glue is uniformly coated on the damaged leakage point part of the oil field storage tank, thedamaged part is firstly filled and leveled up, and then coated; bonding and curing are conducted; and after an expected leaking stoppage purpose is achieved through inspection, redundant viscose is ground, and the appearance of the bonding portion is kept attractive and smooth. The cold welding process repairing method for an oil field storage tank, without hot work, provided by the invention islow in repairing cost and short in repairing period, a special cold welding repairing glue bonding technology is adopted, good mechanical capacity and compressive strength can be provided, and for oilfield storage tank pipe wall damage repairing, the high grabbing force and adhesive force are achieved, and it is guaranteed that the repairing and reinforcing effect is effective for a long time.

The invention relates to nanocrystalline alloy, in particular to a method for preparing a block nanocrystalline alloy material through the cold pressure welding technology. A strip-shaped nanocrystalline alloy material is welded to be a block material in a cold mode based on the character that strip-shaped or sheet-shaped alloy materials are combined with a substrate material under huge pressure through acute plastic deformation cold welding. Due to the fact that obvious temperature rising does not exist in the cold pressure welding process, the finally obtained crystalline grains of the block material are not obvious different from original strips and are nanocrystalline.

Jointed metal plates and the manufacturing method thereof are provided, in which a first plate can be end-to-end connected to a second plate. The first plate has protrusions on its jointing edge, while the second plate has recesses on its jointing edge. The protrusions of the first plate are embedded in the recesses of the second plate respectively in a manner that the first plate is fixed with respect to the second plate. Thereby, welding process can be omitted when two metal plates are to be fixed end-to-end. The disadvantages of the welding process can be prevented. The manufacturing efficiency can be increased, while the manufacturing cost can be reduced.

A system for fastening, by welding, a component having a portion with a conical surface profile to a motor vehicle fuel tank that includes an opening whose perimeter has a conical surface profile. The welding is carried out between at least one portion of the conical surface of the perimeter of the opening in the tank and at least one portion of the conical surface of the component.

The invention discloses a polarizer push fixture and a work mode thereof. The polarizer push fixture comprises a rack, a metal plate positioning tray mechanism mounted at the upper end of the rack, a pressing-down mechanism located above the metal plate positioning tray mechanism, and a PLC (Programmable Logic Controller) in signal connection with the pressing-down mechanism. The work mode comprises the following steps: 1, placing a metal plate in a metal plate tray; 2, placing the metal plate positioning tray mechanism at the upper end of the rack; 3, opening a drive switch and controlling the pressing-down mechanism to descend and compress a polarizer and the metal plate by the PLC; 4, enabling the pressing-down mechanism to ascend automatically after the pressing-down mechanism performs pressing down for 12 seconds; 5, taking the metal plate positioning tray mechanism out from the polarizer push fixture; 6, taking the metal plate out from the metal plate tray. By adopting the polarizer push fixture and the work mode, a press-attaching rubber head of the pressing-down mechanism is in contact with the polarizer, so that the polarizer and the metal plate are fitted closely and adhered firmly, and the firm adhesion of the polarizer on the metal plate is ensured, and the whole operation is convenient and effective.

The invention discloses nail-plier integrated type quick cold pressing pliers. The nail-plier integrated type quick cold pressing pliers comprise a device shell, a threaded cover plate is arranged at the top of the device shell, an upper partition plate is embedded in the device shell, a lower partition plate and a power supply assembly are arranged at the bottom of the upper partition plate, an electric control mechanism is arranged at the bottom of the power supply assembly, a sensing device is embedded in a conical push rod, a pressing plier groove is formed in the center of the bottom of the device shell in a penetrating mode, a first control switch is arranged at the top of the threaded cover plate, a second control switch is arranged on one side of the first control switch, a safety lock mechanism is arranged on the side, close to the second control switch, of the first control switch, the outer surface of the device shell is provided with a placing groove in a penetrating mode, a sealing cover is hinged to one side of the placing groove, a locking and unlocking mechanism is arranged on one side of the sealing cover, and a control panel is fixedly connected in the placing groove. According to the nail-plier integrated type quick cold pressing pliers, by means of the arrangement of the safety lock mechanism, an operator can be prevented from accidentally touching the control switches.

The invention discloses a numerical control hydraulic automatic cold welding machine. The numerical control hydraulic automatic cold welding machine comprises an upper main body and a base, wherein the base is located on the outer surface of the upper end of the main body and is fixedly connected with the main body, rectangular grooves are formed in the two sides of the outer surface of the upperend of the main body, the inner surfaces of the lower ends of the rectangular grooves are fixedly connected with hydraulic machines, the outer surfaces of the upper ends of the hydraulic machines arefixedly connected with limiting devices, baffles are fixedly installed at the edges of the front end and the rear end of the outer surface of the upper end of the main body, the outer surface of the upper end of the base is movably connected with a protective plate, a storage device is connected above the protective plate in a sliding mode, and grooves are formed in the joints of the outer surfaces of the two sides of the base and the limiting devices. According to the numerical control hydraulic automatic cold welding machine, a worker can quickly insert a welding part into a cold pressing mold, so that the problems that when the welding part is inserted, the welding part collides with the cold pressing mold, so that an inserting hole in the cold pressing mold is damaged and deformed, thewelding part is inconvenient to insert later, time is wasted, and the working efficiency is reduced are solved.

The invention provides a connecting structure of a side plate and an accessory and relates to the technical field related to heat dissipaters. The connecting structure comprises the side plate and theaccessory, wherein a slot is formed in the side plate, and one end of the accessory is arranged in the slot; and a soldering lug is arranged between the accessory and the side plate. According to theconnecting structure of the side plate and the accessory provided by the invention, one or more point connecting side plates and the accessories are riveted to the upper and lower surfaces of a C-shaped side plate, so that the cost of a material is not increased basically. As the connecting mode is implemented by means of deformation, the chemical components of the material are not changed, so that the corrosion resistance of a product is not affected. The product is good in riveting consistence and attractive in appearance; the surfaces of the side plate and the accessory entering a furnaceto be brazed are tightly welded together by means of brazing filler metal, so that the stress areas of the accessory and the side plate of the product in the vibrating process are increased, and the vibration resistance is guaranteed.