40results about How to "Reduce performance indicators" patented technology

The invention discloses a carbon titanium aluminum-based electric contact material and a preparation method thereof, and belongs to the field of materials. The electric contact material is prepared from the following components in parts by weight: 80-99 parts of Ti3AlC and 1-20 parts of a binder, wherein the binder is at least one of Co, Al, Al-Co alloy, Cu-Al alloy and Co-Cu alloy. The electric contact material is prepared by the following processes: pressing and molding Ti3AlC2 and the binder under the pressure of 10-20MPa, and then carrying out heat preservation at 700-1500 DEG C under a vacuum condition for 3-6 hours. The carbon titanium aluminum-based electric contact material is simple in process, high in bonding strength of carbon titanium aluminum and metal in material, low in contact resistance, good in fusion welding resistance, strong in arc erosion resistance and applicable to large-scale popularization and application.

The invention discloses a cam mechanism for a fingerprint lock, and relates to the field of anti-theft locks. The mechanism is mainly composed of a cam shaft, a moment limiter, a driven ring, a cam ring, a thumbwheel, a main clutch and a subsidiary clutch. The cam mechanism is located in the lock body of the fingerprint lock, one end is connected to a handle, the other end is connected to drive parts of a lock plunger and a spring bolt and used for transmitting, controlling or stopping rotary motion of the handle, fingerprint identification unlocking, key inserting key unlocking and locking operation are all achieved by the same handle, and the handle can idle when strong wrenched. As an alternative solution of the prior art, the subsidiary clutch of the cam mechanism is arranged between the driven ring and the cam ring, and the way to drive the subsidiary clutch through a key is abandoned. The main clutch is still arranged between the thumbwheel and the driven ring, a motor can meanwhile drive two clutches to close, the structure is more compact, stability and safety are more outstanding, and original permeability of a lock core is restored.

The invention relates to a making method of a functional fiber bulked yarn fabric blanket. The making method comprises the steps that continuous functional fiber endless tows are continuously blown and sprayed through high-speed air flow to be in the screw type bulked state, and functional fiber bulked yarns and the endless tows made of the same raw materials as the functional fiber bulked yarns are merged in an over-feed mode to form bulked composite yarns; the bulked composite yarns are used as weft yarns to be interwoven with the endless tows to form the fabric blanket, and thick fiber blankets with various standards can be formed by weaving. The continuous functional bulked yarn blanket not only maintains the advantages of chopped fiber blankets, but also adds new functions, defects of short fiber punched felts are overcome, and the whole mechanical property of a fiber net is improved. The functional fiber bulked yarn fabric blanket can be directly applied to materials for thermal insulation, filtering, adsorption, abrasion and the like, can also be used as fiber prefabricated bodies for composite materials, gives full play for mechanics bearing performance and functionality advantages, and has wide application prospects.

The invention discloses a flameless combustion heat accumulating type flat flame combustion nozzle. A combustion nozzle body is internally provided with an air or smoke gas passage, a porous heat accumulator, a combustion cavity, a gas pipeline and an ignition device, wherein the tail end of the air or smoke gas passage is provided with a tangential air inlet duct positioned along the tangential direction of the circumferential combustion cavity, and the air or smoke gas passage is connected with the combustion cavity through the tangential air inlet duct; the tail end of the gas pipeline is provided with a flame combustion gas pipe and a flameless combustion gas pipe which are parallel and respectively controlled by a flame combustion control valve and a flameless combustion control valve, and the aperture of a flameless combustion gas spray orifice positioned on the tail end of the flameless combustion gas pipe is smaller than that of a flame combustion gas spray orifice positioned on the tail end of the flame combustion gas pipe. The flameless combustion heat accumulating type flat flame combustion nozzle has high energy utilization efficiency and good furnace temperature uniformity and can greatly reduce the discharge amount of NOX; fuel is sprayed at high speed through the necking spray orifice, thereby effectively controlling the flame temperature and being beneficial tothe sufficient combustion of the fuel; and in addition, the flame sprays into a furnace cavity with a very short spraying distance so as not to spray to parts inside the furnace cavity.

The invention discloses a method for selecting a multi-objective immune optimization multicast router path, which mainly solves the problem of the optimization of multicast routers. The method has the following steps of: (1) determining an optimized target to generate a network model, and setting running parameters to generate an initial population; (2) eliminating an individual path loop; (3) calculating the individual target value to generate a current non-dominant population; (4) judging finishing conditions, if the finishing conditions are met, the current non-dominant population is output, or else, carrying out step (5); (5) calculating the individual crowding distance of the current non-dominant distance to generate an active population; (6) carrying out cloning and local searching operation on the active population; (7) carrying out recombination, variation and local search operation on the cloned population; (8) combining the current non-dominant population with the populations obtained in the steps (6) and (7) to eliminate the individual path loop; (9) calculating the individual value to refresh the current non-dominant population, and carrying out the step (4). The invention has the advantage of providing a flexible optimization scheme and is suitable for selecting the multicast router path.

The invention is a novel transformer. Combining the structural advantages of the current shell-type transformers and core-type transformers, it can completely replace the current shell-type and core-type transformers. The cost is greatly reduced, and the pass rate of sudden short circuit test is basically 100%. The cooling effect of the transformer winding is good, the overload capacity is strong, the ultimate capacity is large, and the transportation is convenient. The advantages of ultimate capacity are better than shell type. When vertical transportation is inconvenient, it can be transported upside down to reduce the transportation height. Compact structure, small appearance, light overall weight, compact structure, easy installation of leads, uniform capacitance distribution, reliable insulation, strong ability to resist lightning strikes and operating overvoltage.