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1359results about How to "Strong penetrating power" patented technology

Electromagnetic current coupling field assisted hybrid melting-brazing method for laser-TIG arc and equipment

The invention discloses an electromagnetic current coupling field assisted hybrid melting-brazing method for a laser-TIG arc and equipment. In addition to the use of the welding zone, an alternating magnetic field is added to control properties of plasma formed through ionization of laser, arc and a raw material metal, thereby improving the laser utilization rate. Under the electric field assisted comprehensive effect, the weld melting depth is increased, and the assistant effect on the melting bath of the liquid-state brazing filler metal for laser-arc melting-brazing is realized through electromagnetic stirring and excitation and enhancement, thereby promoting the orderly flow of the liquid-state brazing filler metal and the rupture, wetting, spreading and proliferation of the liquid-state brazing filler metal on the surface of the high metal material, improving the full mixing of the liquid-state brazing filler metal and the base metal formed by melting the low-melting-point metal material, improving the uniformity of the components of the brazed weld, stabilizing the welding process, reducing welding defects, increasing the welding speed, improving the weld formation, optimizing the structure and performance of the brazed weld, and improving the quality of the brazed joint. Moreover, the equipment has the advantages of simple structure, flexible application, low cost, good effect and easy realization.
Owner:CHONGQING UNIV

Anchor positioning system for detecting planetoid lander

The invention relates to an anchor positioning system for detecting a lander, in particular to the anchor positioning system for detecting a planetoid lander. The anchor positioning system solves the following problems of a telescopic sleeve connecting and positioning system: an anchor bill is inclined when in incidence and transverse impact load is acted on the lander, so as to damage instruments at the inner part of the lander; a moving part of a telescopic sleeve is changed in quality during the incidence, so as to cause difficulty in estimating initial emission energy. An advancing mechanism is fixedly arranged on the side face of a cable box body, a winding mechanism is fixedly arranged on a rear end cover of the cable box body, a locking and unlocking mechanism is fixedly arranged on a right shell body of the winding mechanism, a connecting rope is stored in the cable box body, one end of the connecting rope is fixed on an anchor rod pin, and the other end of the connecting ropeis fixedly connected with a winding reel. A winding motor and an unlocking motor are connected with a pin socket by a lead wire. The anchor positioning system can also be used not only for detecting the lander of a small celestial body with weak surface gravitation such as the comet and the like, but also for automatic operation of a robot in dangerous environments.
Owner:HARBIN INST OF TECH

High-pressure pneumatic blasting pressure relieving and transmission increasing method

ActiveCN102852506ARealize pressure relief and anti-reflectionRelief and anti-reflection achieveDisloding machinesFluid removalEngineeringHigh pressure water
The invention provides a high-pressure pneumatic blasting pressure relieving and transmission increasing method, comprising the steps of constructing a blasting drill hole in a coal layer, and carrying out high-pressure water jet seam cutting operation in the blasting drill hole at intervals, so that a lead seam groove is formed in a coal body around the blasting drill hole; feeding a blasting steel pipe with plugged top part into the blasting drill hole, forming a plurality of air vents at the front part of the blasting steel pipe, and sealing a section inside a hole opening of the blasting drill hole by 8-10 m, so as to form a cement plug; and connecting the blasting steel pipe with a high-pressure air station through a pipeline at the exposed end of the blasting steel pipe, and opening a valve arranged on the pipeline to inject high-pressure gas, so that the high-pressure gas is jetted by the blasting steel pipe from the air vents. On the basis of forming cracks and fractures formed in the fractures and cutting grooves of the original coal body, the high-pressure gas instantly impacts the blasting effect, so that the cracks and the fractures can be continuously expanded, and a lot of new fractures can be generated. Finally, a mutually communicated large fracture screen is formed in the coal body by using the blasting drill hole as a center, so that the purpose of pressure relief and transmission increase of the coal body can be realized. Furthermore, the high-pressure pneumatic blasting pressure relieving and transmission increasing method has the advantages of simple operation, easiness of realization and obvious effect.
Owner:CHINA UNIV OF MINING & TECH

Non-penetration laser welding apparatus and non-penetration laser welding method

The invention relates to a non-penetration laser welding apparatus. The non-penetration laser welding apparatus comprises a laser welding head (1), a transmitting optical fiber (2), a laser (3), a feedback control system (6), a computer (7) and an infrared temperature acquisition system (8); the non-penetration laser welding apparatus is characterized in that the laser light output by the laser (3) is transmitted to the laser welding head (1) by virtue of the optical fiber (2), a laser beam (4) focused by a focusing lens in the welding head acts on the surface of a welding material (5) to weld the material, the infrared temperature acquisition system (8) is used for capturing the temperature of the back surface of a weld joint in the welding process online, obtaining the present welding penetration condition of the material and transferring control information to the feedback control system (6), and the feedback control system (6) is used for controlling the laser (3) to adjust the power of the laser light in real time. The non-penetration laser welding apparatus is capable of performing accurate control on non-penetration welding adopted in industries so that the welded joint can be protected against non-fusion and back burn; the non-penetration laser welding apparatus is high in practicability.
Owner:HUNAN UNIV

Transparent liquid crystal display device and manufacturing method thereof

The invention provides a transparent liquid crystal display device and a manufacturing method thereof. A polymerizable monomer can be mixed into liquid crystal molecule; the polymerizable monomer is polymerized under UV-light to form a polymer net for connecting upper and lower base plates; the polymer net can stabilize the initial alignment of the liquid crystal molecule, so that the response speed of the liquid crystal molecule is increased. Furthermore, the polymer net liquid crystal with quick response characteristics is used together with a field sequential type backlight system; the field sequential type backlight system is used for sequentially emitting red, green and blue light to realize colorful display, so that the colorful light-filtering layer is omitted and transparent display in high penetration rate can be realized; the dichroism dyeing molecule is added into the liquid crystal monomer; the dichroism dyeing molecule is utilized to absorb the light with polarization direction parallel to long axis direction and realize light polarization through the characteristic that the polarization direction of the light is vertical to the long axis direction, so that a polarization layer can be saved, the penetration rate of the transparent liquid crystal display device can be increased and the production cost can be lowered.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Fluorescence probe for detecting intracellular hydrogen sulfide and preparation method and application of fluorescence probe

The invention relates to a fluorescence probe for detecting intracellular hydrogen sulfide and a preparation method and application of the fluorescence probe. Cy7 fluorochrome and sodium acetate are dissolved in anhydrous dimethylformamide (DMF), heating reflux is carried out for 2-4 hours under protection of Ar gas, cooling and suction filtration are carried out on an obtained mixture, mother liquor is crystallized under the low temperature of minus 4-20 DEG C, and keto form cyanine reddish brown crystals are obtained after the suction filtration; toluoyl benzoic acid and oxalyl chloride are dissolved in anhydrous CH2Cl2, then a bit of DMF is added, mixing is carried out for 2-6 hours under the temperature of 0 DEG C, and toluoyl benzoyl chloride is obtained; and keto form cyanine and triethylamine are dissolved in the anhydrous CH2Cl2 and are cooled to be 0 DEG C, the toluoyl benzoyl chloride is added dropwise, mixing is carried out for 10-30 minutes under the temperature of 0 DEG C, the mixture is heated to be in the room temperature, mixing is carried out overnight, suction filtration and spinning drying are carried out, separation is carried out through a chromatographic column, green solids are obtained after the spinning drying, and the structural formula is as follows. The fluorescence probe is simple in composition, high in detection speed, free of long-term incubation in a detection process, high in sensitivity, and capable of detecting intracellular endogenic hydrogen sulfide.
Owner:SHANDONG NORMAL UNIV

Road abnormal parking early warning method based on vehicle to vehicle communication and implementation system thereof

InactiveCN104392621AImprove securityPrevent early warning failureAnti-collision systemsEarly warning systemMobile vehicle
The invention discloses a road abnormal parking early warning method based on vehicle to vehicle communication and an implementation system thereof, the early warning method includes: using a positioning module to obtain the position information of the moving vehicle; when the vehicle parks for abnormal state, using a wireless communication module for sending abnormal warning message; receiving the abnormal warning message through the wireless communication module by the vehicle moving normally; early adjusting after receiving the abnormal warning voice prompt and text display information by the vehicle moving normally, steering clear of the vehicle having abnormal state. The road abnormal parking early warning system comprises a main controller and a positioning module connected to the main controller for obtaining the position information of the moving vehicle, the wireless communication module used for sending or receiving the abnormal warning message, the voice prompt and voice broadcast module used for the abnormal warning message, and the display module used for displaying the text for the abnormal warning message. The vehicle can send the warning message while parking for abnormal state for reminding the nearby vehicles for adjusting early.
Owner:CHANGAN UNIV

Intelligent pesticide application unmanned helicopter

The invention provides an intelligent pesticide application unmanned helicopter and belongs to the technical field of agriculture. The unmanned helicopter comprises a helicopter body frame, wherein the helicopter body frame is provided with a rotary wing flight system and a undercarriage component which are controlled by a flight control main engine; the communication end of the flight control main engine is communicated with a global position system (GPS), the master control output end of the flight control main engine is connected with the controlled end of the rotary wing flight system and is used for sending a navigation control signal to the flight system according to a contemplated route and real-time position information transmitted from the GPS; the central part below the helicopter body frame is also provided with a pesticide application device consisting of a pesticide chest, a liquid pump, a spray beam and a spray nozzle; the liquid outlet of the pesticide chest is communicated with the spray beam with the spray nozzle through a liquid infusion pipeline and the liquid pump; the flight control main engine also comprises an auxiliary control output end; and the auxiliary control output end is connected with the controlled end of the liquid pump and is used for sending a pesticide application control signal to the liquid pump according to the preset pesticide application sites and the real-time position information transmitted from the GPS. The unmanned helicopter can realize automatic navigation flight and can automatically control the pesticide application operation.
Owner:NANJING AGRI MECHANIZATION INST MIN OF AGRI

Liquid crystal display device

The embodiment of the invention discloses a liquid crystal device, and belongs to the technical field of display. The liquid crystal display device comprises an array substrate, a color filter substrate, a liquid crystal layer and frame glue, wherein the array substrate comprises a plurality of scanning lines in parallel, insulated layers arranged on the surfaces of the scanning lines, a plurality of parallel data lines arranged on the surfaces of the insulated layers, a plurality of pixel electrodes arranged on the surfaces of the insulated layers and distributed in a matrix, passivation layers covering the surfaces of the pixel electrodes and the surfaces of the data lines, and a plurality of first common electrodes which cover the surfaces of the passivation layers and are parallel with the data lines and crossed with the scanning lines; the color filter substrate comprises a black matrix, a color resistance layer, a flat layer and a second common electrode covering the surface of the flat layer, and the second common electrode is of a net-shaped structure, the net-shaped structure is a certain distance away from the data lines and the scanning lines in the vertical direction and the net-shaped structure is relatively overlapped with the data lines and the scanning lines. The penetration rate of the liquid crystal display device rises, and the response speed is improved.
Owner:KUSN INFOVISION OPTOELECTRONICS

Sea level LED lamp light trapping fishing pot

The invention discloses a sea surface LED lamp trapping (fishing) cage, which consists of a floating pontoon, a fishing cage, a battery box, a trapping box, and LED lamp modules, wherein the floating pontoon is arranged on the top of the fishing cage, and a battery pack is arranged on the bottom of the fishing cage. The sea surface LED light trapping (fishing) cage is characterized in that the fishing cage is formed by connecting a plurality of sections of fishing cages; the side wall of each section of fishing cage is provided with a plurality of fishing cage ports with electric gates; a support above each section of the fishing cage is evenly distributed with a plurality of the LED lamp modules along the periphery of the fishing cage; the trapping box are arranged at the center inside each section of the fishing cage, are positioned on fishing cage port supports, and correspond to the fishing cage ports at the same time; and the side wall of the fishing cage is provided with a plurality of the fishing cage ports, and the inner wall of the fishing cage at upper and lower sides of the fishing cage ports is provided with the LED lamp modules. Soft spines and the electric gates which are used for preventing fish from escaping outward are arranged at inner ports of the fishing cage ports. The sea surface LED light trapping (fishing) cage has the advantages that a fishing tackle and a fishing method of the invention greatly reduce fishing cost, reduce the labor intensity of the fishing, and improve fishing amount and fishing efficiency.
Owner:湛江胜浪海洋捕捞研究所

Reducing reagent nozzle for denitration by SNCR method

The present invention provides a reducer nozzle used for denitration by an SNCR method. The reducer nozzle comprises a main pipe, an accessory pipe, a cutting ferrule, liquid pipes and a nozzle. The cutting ferrule is connected with the accessory pipe by screw threads to form a relative closed space. The front end of the main pipe is equipped with the nozzle and is arranged in the accessory pipe. The front end of the nozzle is contacted with the cutting ferrule. The back end of the main pipe is communicated with the liquid pipe I which is provided with a manometer. The accessory pipe is communicated with the liquid pipe II which is provided with the manometer. The nozzle is provided with a mixing hole which runs through the main pipe axially and is provided with a plurality of branch holes of the accessory which are communicated with the mixing hole and the accessory pipe. Olivary spray ports are arranged at the nozzle at a liquid outlet of the mixing hole and the cutting ferrule. The reducer nozzle has reasonable structure; when reducer penetrates an oven, the temperature range is narrow, the penetrable performance is good, and the spray distance is long; the reducer nozzle can also effectively control the granularity of atomized particles of the reducer and the vaporizing time of atomized liquid drops; and the reducer is mixed with NOx in smoke uniformly to improve the efficiency of denitrating the smoke.
Owner:JIANGSU ZHONGKE ENERGY SAVING ENVIRONMENTAL PORTECTION TECH

Intelligent green illumination system for road tunnel

InactiveCN106304483AControl driving speedMonitor driving speedElectrical apparatusElectroluminescent light sourcesValue setSoftware system
The invention discloses an intelligent green illumination system for a road tunnel. The intelligent green illumination system comprises a software system control module, and an illumination lamp dimming module, wherein after the software system control module receives environment information parameters and vehicle information parameters, the software system control module calculates luminance and color temperatures required by each road section in a tunnel hole according to illumination design details of the road tunnel, and transmits the luminance values and the color temperature values to the illumination lamp dimming module; and after the illumination lamp dimming module receives a dimming instruction from the software system control module, the illumination lamp dimming module controls LED illumination lamps in each road section to be adjusted to the luminance values and the color temperature values set by the software system control module. The intelligent green illumination system for the road tunnel is simple and convenient in the control mode, and can intelligently control the luminance and the color temperatures in each road section in the tunnel hole according to different environment parameters and traffic stream conditions; and therefore, energy conservation is realized while lamp light penetrability in the tunnel hole can be ensured under a poor visibility condition, thereby reducing traffic accidents.
Owner:JIANGSU CHANGLU ENERGY TECH DEV CO LTD

Condensation electric arc welding gun

The invention discloses a condensation electric arc welding gun, which belongs to the technical field of welding equipment. A tungsten electrode is closely embedded in the center of an electrode holder; the electrode holder is sleeved in the center of a main connector through thread; the root part of the electrode holder is mutually engaged with the main connector by using an inclined surface, so that water cooling effect to the electrode and no leakage are guaranteed; a ceramic nozzle is sleeved on the periphery of the main connector through threaded connection; a protective gas laminar flow screen is a stainless steel wire net which is fixed on the other end face of the main connector through an O-shaped steel wire spring, so that protective gas forms laminar flow; a water outlet pipe, a water inlet bushing or a gas inlet bushing is provided with a cable connecting end; the water inlet bushing is coaxially sleeved outside a water outlet straight pipe; and the gas inlet bushing is sleeved outside the water inlet bushing, a water inlet passage is remained in the middle of the gas inlet bushing and the water inlet bushing, and the gas inlet bushing and the water inlet bushing are welded on the same end face of the main connector to form a water cooling passage and a gas protection passage. Apart from the ceramic nozzle, all the remaining materials are conductors. According to the condensation electric arc welding gun, the free electric arc energy intensity can be improved, and better capacity of controlling welding joint formation is achieved.
Owner:BEIJING UNIV OF TECH

Method for nondestructive evaluation of residual stress levels in aluminum alloy forged piece through ultrasonic waves

The invention belongs to the field of nondestructive detection and relates to a method for nondestructive evaluation of residual stress levels in an aluminum alloy forged piece through ultrasonic waves. According to the method, the phenomenon that the propagation speed of the ultrasonic waves in materials can be affected by stress in the materials to a certain extent is used, and the difference of residual stress levels among different positions in the large size aluminum alloy forged piece is reflected through changes of sound speeds. The method has the advantages of being high in detection speed, large in measuring depth, good in economy and the like. The residual stress in the large size aluminum alloy forged piece is measured through the sound elastic effect of the ultrasonic waves in the method, and the method has the advantages of being high in measuring speed, convenient to use, flexible in measuring range, good in economy and the like. The single-time measuring time of the method is about five minutes and is shorter that the single-time measuring time of a neutron diffraction residual stress measuring method, the detection speed is high, the maximum measuring depth of the method can reach 400 mm, is larger that the measuring depth of the neutron diffraction method, and is much larger that the measuring depth of an X-ray method or a Barkhausen noise method.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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