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The present invention relates to a preparation processing method of amorphous alloy workpiece. Said method includes the following steps: heating and melting alloy mother material, then pouring the molten alloy mother material into a breakable mould, after the molten alloy is cooled, an amorphous alloy can be obtained, after the mould is broken, cleaning the test sample so as to obtain the invented required workpiece.

The invention relates to a method for making a vane of a wind-driven generator by adopting ultra-high strength polyethylene fiber composites, which is characterized in that the front edge, the girder rind, the upper shell and the lower shell of the vane are made from ultra-high strength polyethylene fiber fabrics and matrix resins through each component mould, the inner sides of the front edge, the upper shell and the lower shell of the vane are compounded and fixed with core materials with sandwich structures in the molding process, the girder rind of the vane and a honey core material are boned together into the girder of the vane by epoxy resins, a bonding rib is made of a foam material through a mould, the front edge and the girder of the vane are bonded by the epoxy resins to form the front-half component of the vane, the upper shell and the lower shell of the vane and the bonding rib are boned by the epoxy resins to form the back half component of the vane, and finally the front and the back half components of the vane are boned by the epoxy resins to form an integrated vane which has the advantages of light weight and high strength. Therefore, the wind-driven generator adopting the vane made by using the method can start to generate in low wind speed, and can still keep the safety of a fan in high wind speed so as to enhance the stalling wind speed (wide adaptation range of the wind speed). The product of the invention has the advantages of stable quality, favorable performance, simple equipment and convenient production.

This invention provides a fiber gas laser and a fiber ring laser gyro with said laser, in which, the fiber gas laser includes exciting gas, optical resonance cavity and an exciting source characterizing that said cavity is composed of hollow fiber and a single-mode fiber coupler, two arms of the coupler are solid fibers and connected with two ends of the hollow fiber separately, and exciting gas as gain medium is filled in the core of the hollow fiber.

The invention relates to a hand-cranking overhead line repairing and winding device. According to the device, one edges of two half-round wheels are connected through a fold to form a round wheel, fixing clips are arranged at the other edges of the two half-round wheels, an overhead line fixing device is arranged inside the round wheel, a top wheel, a rocker arm and a binding wire coil are arranged on the outer side of the round wheel, and a binding wire which is twined round the binding wire coil extends out and is twined round a repaired overhead line through the top wheel. By the aid of the device, procedures of high-place operations are simplified, the time for high-place operations is shortened, the device is applicable to overhead lines of different specifications, simple to operate, quick, convenient, standard and compact to twine, low in cost, wide in application range, safe and reliable in performance, flexible, handy and capable of guaranteeing the maintenance quality, shortening the operation time, reducing the labor intensity of operators and guaranteeing the construction safety of operators, and the device can be popularized and used in power transmission and production industries easily.

The invention relates to a motor, in particular to a permanent-magnet synchronous traction motor for a motor train. The permanent-magnet synchronous traction motor for the motor train solves the problem that an existing permanent-magnet synchronous motor is not suitable for being directly used as a permanent-magnet synchronous traction motor for a motor train due to structure defects. The motor adopts a novel rotor magnetic circuit structure punching plate, a high-integration compact type rotor structure, a detachable connecting box structure and a lead structure. A connecting box can be conveniently disassembled so that the motor can be installed easily. A U-shaped magnetic circuit permanent magnet structure of an inner rotor is adopted, the magnetic separation bridge and circular bead design is added, and therefore the start and overload capacity of the motor can be improved. A rotor pressing ring at the driving end integrates rotor core pressing, permanent magnet end face pressing, rotor dynamic balancing and an inner seal ring labyrinth seal structure into a whole, the advantages that the structure is compact, the axial occupied space is small, and the installation is convenient are achieved, and the motor can be widely applied in the field of locomotive trains. According to the research, development and the operation of the permanent-magnet synchronous traction motor for the motor train, realistic bases are supplied for the permanent-magnet motor to research and develop a permanent-magnet traction motor structure with higher power, higher rotation speed and higher power density.