55results about How to "Good economic use value" patented technology

The invention relates to a method of a local postweld heat treatment of a steel casting, and particularly relates to a method used for a local postweld heat treatment of a large-size steel casting after rewelding. The method comprises the following steps of: firstly, carrying out hardness detection on a welding zone after rewelding, wherein the hardness does not exceed 40-60 HB (heavy barrel) of a standard requirement maximally; carrying out an induction heat treatment, wherein the specific processing parameter of the induction heat treatment is that the lifting temperature speed is 10-20 DEG C/min, the holding time is 1-4 hours, the holding temperature is +20-40 DEG C of normal postweld heat treatment temperature, and the heating depth is 30-100 mm; and carrying out hardness detection and NDT detection on a welding meat region, a welding seam region and a base material of a treatment defect after induction heat treatment, wherein after the detection results meet the requirement, the local postweld heat treatment is finished. The method provided by the invention has the advantages that the technological method is unique, the operation is simple, the method is suitable for the large-size steel casting and can improve a local postweld heat treatment effect, the product quality is guaranteed and the production efficiency is improved, and the cost is reduced.

The invention provides a composite temperature equalization plate and a manufacturing method thereof. The composite temperature equalization plate has the characteristics of being high in machining efficiency, low in cost, free of pollution and small in thickness; and in addition, an additional casing pipe does not need to be additionally arranged, operation is easy, and the good capillary conductivity is achieved. The composite temperature equalization plate comprises a first cover plate, a second cover plate and a containing cavity; a supporting structure and a powder sintered capillary structure are arranged in the containing cavity; a groove is formed in the covering plate surface of the first cover plate to form the containing cavity; the supporting structure comprises convex hulls which are integrally formed with the first cover plate through sheet metal punching, and the height of the convex hulls is smaller than the depth of the groove; the powder sintered capillary structure is closely attached to the covering plate surface of the second cover plate; a mesh capillary structure is arranged between the convex hulls and the powder sintered capillary structure; the first cover plate and the second cover plate are each provided with an extending portion extending outwards from the side edge, the extending portion of the first cover plate is provided with a liquid injection groove channel communicating with the containing cavity, and an air exhausting and liquid injecting port is arranged in the extending portion of the second cover plate and communicates with the liquid injection groove channel and the containing cavity; and the thickness of the temperature equalization plate is between 0.3 mm and 50 mm.

The invention provides a system and a method for controlling stable cooling after catalyst regeneration drying or roasting, which not only can save drying and roasting equipment resources, but also can stably control slow cooling of a dried or roasted catalyst, and ensure that the mechanical strength of a regenerated catalyst finished product is not damaged and reduced due to a cooling process. Acooling box of a cooling device comprises an air inlet, an air outlet, a first air duct, a second air duct and a third air duct. A containing cavity for containing a catalyst in the cooling box is communicated with the first air duct, the second air duct and the third air duct to form a three-way structure. The air inlet is communicated with the first air duct and the second air duct to form a three-way structure. A circulating fan is connected to the second air duct. The air inlet end is connected with an air inlet control valve. The third air duct is connected with an exhaust induced draft fan, and then air is exhausted to the outside through the air outlet. A thermocouple assembly comprises a plurality of thermocouples, and the thermocouples are inserted into pore channels of the catalyst respectively. A flow equalizing grid is installed in the containing cavity located above the catalyst. The exhaust induced draft fan, the air inlet control valve, the circulating fan and the thermocouples are all connected to a control system.

The invention provides a pantograph comprehensive geometric parameter online detection device and method based on laser projection. The equipment is simple in structure, fast in detection rhythm, high in efficiency, high in anti-jamming capability, high in precision, capable of effectively achieving train pantograph comprehensive geometric parameter online detection and good in reliability. The equipment comprises a pantograph-catenary system, the pantograph-catenary system comprises a catenary and a pantograph which are in contact with each other, and the pantograph-catenary system further comprises a driving-in detection module, a data acquisition module and a data processing module which are connected in sequence; the driving-in detection module is used for acquiring a train driving-in signal when a train drives into a detection area and sending the train driving-in signal to the data acquisition module; the data acquisition module is used for acquiring a pantograph image when a train driving-in signal is received, and sending the acquired pantograph image to the data processing module; and the data processing module is used for processing the received pantograph image to obtain geometric parameter data on the pantograph.

The invention provides a calibration device for a laser displacement sensor. Laser parameters can be conveniently calibrated; the device comprises a laser calibration plate and a dial indicator, the dial indicator is arranged on a fixed plate; the laser calibration plate and the fixed plate are connected through a mounting connecting block; a micrometer head mounting plate is mounted on the lasercalibration plate; a micrometer is assembled on the micrometer head mounting plate; a sleeve and a screw rod on the micrometer penetrate through the micrometer head mounting plate; the screw rod is connected with a balancing weight through a compression spring; a sliding assembly is arranged on the laser calibration plate; the sliding assembly comprises a sliding rail, a sliding plate is arrangedon the sliding rail through a sliding block; the sliding plate is connected with the screw rod through a follow-up block; a through groove is formed in the laser calibration plate below the sliding plate; the upper portion of an inverted-T-shaped side sliding block penetrates through the through groove and then is connected with the bottom face of the sliding plate, the length of the through groove is larger than that of the upper portion of the side sliding block and smaller than that of the lower portion of the side sliding block, optical glass is installed on the bottom face of the lower portion of the side sliding block, and a probe on the dial indicator penetrates through the fixed plate and then makes contact with the optical glass.

The invention discloses hair care composition with a dandruff removing effect. The hair care composition is prepared from the following ingredients in parts by weight: 0.1 to 10 parts of oryza sativagrain extract, 0.1 to 10 parts of hordeum vulgare leaf extract and 0.1 to 10 parts of kigelia africana fruit extract. The oryza sativa grain extract, the hordeum vulgare leaf extract and the kigelia Africana fruit extract are compound together, so that synergistic interaction is achieved, and the hair care composition has a good long-acting dandruff removing and stopping effect and good skin friendliness, is moderate, has no stimulation and can moisturize the skin and relieve itching.

The invention provides an insulation detection system for a super-capacitor energy storage system. The system not only can realize insulation detection, but also can effectively improve the insulationdetection efficiency, and is good in safety, low in cost and high in practicability; and in addition, the invention further provides an insulation detection method for the super-capacitor energy storage system. The insulation detection system for the super capacitor energy storage system comprises an MCU control module, a detection module, a sampling module and a conversion module, wherein the MCU control module and the sampling module are electrically connected with the detection module, and the sampling module is connected with the MCU control module through the conversion module; the MCU control module is used for outputting PWM waves to the detection module so as to control the detection module to perform detection; the detection module is used for realizing insulation resistance detection of the insulation detection system; the sampling module is used for sampling the voltage signal of the detection module in real time; and the conversion module is used for receiving the data signals acquired and output by the sampling module, converting the data signals into digital signals and transmitting the digital signals to the MCU control module.

The invention discloses a surface treatment method for a C-C heating element, and relates to a polysilicon production process. In the surface treatment method, the conventional hydrogenation production equipment and new technological parameters are adopted, a layer of simple substance silicon is generated in holes and surfaces of the C-C heating element, and then a SiC film is generated through high temperature diffusion. The surface treatment method has the advantages that: raw materials hydrogen and silicon tetrachloride have high purity, so new impurities cannot be introduced, the generated SIC has stable performance and good electrical performance, the SiC film is difficult to damage or fall off, resists corrosion and erosion and effectively protects the C-C heating element, the service life of the C-C heating element is prolonged to over 4,500 hours from 2,500 hours, and the C-C heating element has good economic use value and has positive function on polysilicon closed-loop continuous stable production.

The invention provides a human eye safety laser ranging machine and method. The human eye safety laser ranging machine is simple to operate, small in size, high in test precision and capable of outputting band laser safe to human eyes. The human eye safety laser ranging machine comprises a laser and a detector; the laser comprises a light source, erbium glass and a first reflector and a second reflector; the first reflector and the second reflector are arranged at the light emitting end of the erbium glass; the included angle between the normal of the first reflector and the second reflector and the normal of the light emitting surface of the erbium glass is a Brewster angle; the first reflector, the second reflector and the erbium glass form a V-shaped resonant cavity; light emitted by the light source enters the erbium glass and then is emitted from the first reflector and the second reflector; and the light emitted from the first reflector sequentially passes through a first total reflection mirror, an acous to-optic frequency shifter, a first beam splitter and the detector; the light emitted from the second reflector sequentially passes through a second total reflection mirror, a Q-switched crystal, a Faraday optical rotation isolator, a second beam splitter, a third beam splitter and a telescopic system and then is emitted to a to-be-detected target; and light scattered or reflected by the to-be-detected target sequentially passes through the third beam splitter, the second beam splitter and the first beam splitter and then enters the detector.

The invention provides a quiet buoyancy adjusting device for an underwater vehicle, which can greatly increase the buoyancy adjusting range and facilitates underwater exploration work of the underwater vehicle. The device comprises a metal ball body, the metal ball body is provided with an opening part; the metal ball body is filled with phase change wax, the open end of the metal ball body is communicated with a metal cylindrical shell through a metal connecting pipeline, an integrated piston is plugged into the metal connecting pipeline from the lower part of the metal cylindrical shell, andthe diameter of the metal cylindrical shell is greater than that of the metal connecting pipeline.

The invention provides a short-circuit protection device and method for an I-type three-level APF. The device and method can achieve switching-off of an outer tube and an inner tube, and achieve short-circuit protection. The device comprises a topology circuit; the topology circuit comprises IGBT T1 to T4, freewheel diodes D1 to D4, and clamping diodes D5 and D6; IGBT T1 and T4 are used as outer tubes; IGBT T2 and T3 are used as inner tubes; the device further comprises short-circuit fault detection circuits, a fault signal logic circuit and a driving signal logic circuit; a short-circuit fault detection circuit is connected between the collector and the emitter of each IGBT; the output ends of the short-circuit fault detection circuits are connected with the input end of the fault signallogic circuit, and the output end of the fault signal logic circuit is connected with the input end of a driving signal logic circuit; the short-circuit fault detection circuits are used for generating fault signals corresponding to the IGBTs; the fault signal logic circuit is used for summarizing the fault signals sent by the IGBTs T1 to T4 to generate a total fault signal; and the driving signallogic circuit is used for realizing delayed turn-off of the IGBT T2 and the IGBT T3 which are used as the inner tubes.

The invention provides a ton bag opening and feeding station. The ton bag opening and feeding station can rapidly and effectively achieve ton bag opening and feeding and prevent dust from overflowing. The ton bag opening and feeding station comprises a rack, a cross beam is arranged at the top of the rack, an electric hoist is connected to the bottom of the cross beam in a sliding mode through a guide rail, a lifting hook used for hooking a ton bag is connected with the electric hoist, a feeding station is arranged on the lower portion of the rack, a flapping mechanism used for flapping the ton bag is arranged on the rack and located below an opening of the ton bag, the flapping mechanism comprises at least one flapping plate installed on the rack in a swinging mode, a bag clamping mechanism used for clamping a ton bag opening is arranged on the portion, below the flapping plate, of the rack, and the bag clamping mechanism comprises a material receiving hopper, a material receiving barrel and a clamping air cylinder driving the material receiving hopper to move up and down, the material receiving hopper and the material receiving barrel are arranged up and down, and the material receiving barrel is in communication with the feeding station.

The invention provides a three-way control valve structure. The sealing effect is good, the using effect under different working conditions can be achieved, and the service life can be prolonged. Thethree-way control valve structure comprises a valve body, an executing mechanism and a positioner connected with the executing mechanism; the valve body is of a four-way structure, and a valve elementis arranged in the valve body; a pressure reducing valve is arranged at the input end of the executing mechanism, a pushing rod is connected to the output end of the executing mechanism, the pushingrod is connected with a valve rod, the lower end of the valve rod penetrates through a valve deck and then stretch into the valve body to be connected with the valve element, and the valve deck is fixedly connected with the valve body; and a balance cylinder and an upper valve seat, a sleeve and a lower valve seat which have the same inner diameter are sequentially arranged in the valve body fromtop to bottom, the upper valve seat, the sleeve and the lower valve seat are arranged at a circulating port of the valve body, the sleeve is arranged on the outer wall of the valve element in a sleeving mode, a clearance is reserved between the sleeve and the valve element, the length of the valve element is smaller than that of the sleeve, and the sleeve is provided with a flow hole.

The invention provides a composite sandglass spring structure. Vibration reduction is good, the cost is low, the bearing capacity of a sandglass spring in a limited space can be improved, and application for more working conditions and on more occasions is achieved. The structure comprises connection plates and rubber vulcanized between the two connection plates, the rubber is of an integrated sandglass-shaped structure, the diameters of the upper and lower ends of the rubber are large, the diameter of the middle of the rubber is small, and metal sheets are inserted in the junction of the upper and lower portions of the rubber.

The invention provides an automatic label stripping device which can realize automatic label stripping. The automatic label stripping device comprises a printer and a bottom frame, wherein the printeris mounted on the bottom frame; a stripping module is mounted on the bottom frame at the outlet end of the printer; the stripping module comprises a base mounted on the bottom frame; a stripping cylinder is mounted on the base; the stripping cylinder is connected with a stripping knife assembly; the stripping knife assembly comprises a stripping knife seat and a label pressing block which are arranged up and down; a height difference for allowing label paper to penetrate through is formed between the stripping knife seat and the label pressing block; and the label pressing block is connectedwith a lifting cylinder.

The invention provides a multipurpose flue gas sampling system which is convenient to operate, capable of sampling and capturing various flue gas pollutants in different temperature environments and good in adaptability. The system comprises: a temperature control device which is connected with a sampling device and is used for controlling the temperature of the sampling device; the sampling device which is used for sampling flue gas and detecting temperature, and feeding back a detected temperature signal to the temperature control device in real time; and a sampling device which is connected with the sampling device and is used for receiving the flue gas output by the sampling device and respectively carrying out trapping test on pollutants in the flue gas.

The invention provides a wire harness fixing device for a high-temperature surface and application of the wire harness fixing device. The wire harness fixing device is simple in structure, low in costand convenient to operate and disassemble, and can effectively reduce structural deformation and guarantee wire harness fixing. The wire harness fixing device comprises a clamping ring and a supporting column; the clamping ring comprises a ring part allowing a wire harness to be fixed to penetrate; root parts are arranged at the two ends of the opening of the ring part, so that an opening part ofthe clamping ring can be formed; the supporting column is connected to the high-temperature surface; an inner inserting hole is formed in the top of the supporting column; and a clamping ring limiting hole communicated with the inner inserting hole is annularly formed in the supporting column; the bending directions of the root parts are opposite to that of the ring part, so that the clamping ring can be elastically deformed; hook parts protruding outwards are arranged at the bottom ends of the root parts at the two ends; the distance between the hook parts is larger than the inner diameter of the inner inserting hole; the root parts extend into the inner inserting hole through external force; and the hook parts are inserted into the clamping ring limiting hole through the elastic force of the clamping ring.