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40results about How to "Does not affect coordination" patented technology

Preparation method of Zn-Al-Ni anticorrosion functional impregnation layer

The invention discloses a preparation method of a Zn-Al-Ni anticorrosion functional impregnation layer, in which such elements as Al and Ni are added into a zinc impregnation agent to change the organizational structure of the conventional zinc and aluminum impregnation layer prepared through mechanical energy aided impregnation. An impregnation agent is prepared according to the following ratio (based on a total number of 100 parts): 20-50 parts of zinc powders (an impregnation supplying agent), 5-25 parts of aluminum powders (an impregnation supplying agent), 0.5-5 parts of nickel powders (an impregnation supplying agent), 0.1-2 parts of ammonia chloride (an activating agent), 0.1-2 parts of rare earth (a catalyst), and of the balance of Al2O3 powders (a filler). The preparation method of the Zn-Al-Ni anticorrosion functional impregnation layer comprises the following steps: uniformly mixing the zinc powders, the aluminum powders, the nickel powders, the rare earth and the Al2O3 powders according to the ratio, and weighing the mixture for later use; and carrying out heat preservation for 3-5 hours under the following technical parameters: a heat preservation temperature of 450 DEG C, and an impregnation furnace rotation speed ranging from 5r / min to 7r / min. The preparation method provided by the invention has the advantages that a high quality of the impregnation layer is ensured through adopted particle diameters of the powders in the impregnation layer formula, and the prepared Zn-Al-Ni impregnation layer achieves low thickness, high surface compactness, high rigidity and excellent anticorrosion performance.
Owner:ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY

Method and system for adjusting temperature of extruding and casting pressure chamber

InactiveCN102218523AUniform heat transferReduces thermal deformation differences and thermal stressMolten metalMaterials science
The invention discloses a method and a system for adjusting temperature of an extruding and casting pressure chamber. The method comprises the following steps that heat-conduction oil that flows along a heat-conduction oil passage arranged in the wall of the extruding and casting pressure chamber carries out heat exchange with the pressure chamber and the molten metal in the pressure chamber; and the temperature required by the pressure chamber and the molten metal is controlled by adjusting the temperature and the flow of the heat-conduction oil. The system for realizing the adjusting method is characterized in that the pressure chamber is formed by assembling an external sleeve pipe wall and an internal sleeve pipe wall; the internal wall of the external sleeve and the external wall of the internal sleeve are respectively provided with corresponding heat-conduction oil passages; after being assembled, the heat-conduction oil passages that are uniformly distributed in the pressure chamber wall are formed; and the oil inlet and the oil outlet are exposed at the lower end of the pressure chamber. In the invention, the pressure chamber can be heated uniformly; the heat of the heat-conduction oil is sufficiently utilized; the heat exchange efficiency of the pressure chamber is improved; the relative stability of the fitting clearance between the punching head and the extruding and casting pressure chamber wall can be kept; excessive friction and abrasion between the pressure chamber wall and the punching head can be avoided; the motion of the punching head is improved; and the service life of the extruding and casting pressure chamber and the punching head can be prolonged.
Owner:SOUTH CHINA UNIV OF TECH

Pile-supported and rigidity-varied reinforced cushion composite foundation and construction method thereof

ActiveCN106894432AStable force transmissionReduce the amount of pilesBulkheads/pilesCushionSludge
The invention provides a pile-supported and rigidity-varied reinforced cushion composite foundation and a construction method thereof. The construction method comprises steps as follows: pile body construction of rigid piles is completed in a soft foundation by a pile forming machine, the ground is leveled, a sand and gravel layer which is 150-300 mm thick is laid and is leveled and compacted, then a first geogrid layer is laid, a sand and gravel layer which is 150-300 mm thick is laid on the first geogrid layer and is leveled and compacted, then a second geogrid layer is laid, and a cement stabilized macadam layer which is 150-300 mm thick is laid on the second geogrid layer; finally, road embankment filling is completed. According to the pile-supported and rigidity-varied reinforced cushion composite foundation and the construction method thereof, rigidity of a reinforced cushion is adjusted hierarchically, so that bearing capacity of soil among piles is sufficiently exerted, uneven settlement of a road surface is reduced, and filling limitation at the upper part is broken through. The construction method is suitable for treating foundations of cohesive soil, floury soil, sludge and mucky soil and can be applied to stabilization and treatment of foundations of structures such as earth-filled embankments, flexible surface storage yards, airport runways, oil tanks, grain depots and the like.
Owner:山东省建筑科学研究院有限公司 +1

Underground pressure monitoring device

The invention relates to an underground pressure monitoring device. The underground pressure monitoring device comprises an energy converter, an energy converter driving circuit, an encoding transcoding circuit, an annular pressure measuring element and a drill column internal pressure measuring element, wherein the energy converter, the energy converter driving circuit and the encoding transcoding circuit are connected with each other in turn; the annular pressure measuring element and the drill column internal pressure measuring element are respectively connected with the encoding transcoding circuit; an annular pressure signal measured by the annular pressure measuring element and a drill column internal pressure signal measured by the drill column internal pressure measuring element are transmitted to the encoding transcoding circuit for encoding and transcoding; the transcoded pressure signal is transmitted to the energy converter driving circuit for driving the signal; the energy converter is driven by the energy converter driving circuit to convert the transcoded pressure signal into a sound wave signal and then send the sound wave signal. The underground pressure monitoring device can achieve the purpose of accurately real-time converting the underground pressure into the sound wave signal while normally drilling; the drill column is used as a transmission channel and is independent of the drilling liquid; the noise jamming resistance is high; the transmission rate is high and the error rate is low; the underground pressure monitoring device is not influenced by the underground complex conditions, such as, gas invasion.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Explosion-proof valve, hydraulic control system, hydraulic control method and excavator

The invention provides an explosion-proof valve, a hydraulic control system, a hydraulic control method and an excavator. The explosion-proof valve is arranged between an oil supply device and a hydraulic actuating element, and comprises a logic check valve and a hydraulically controlled oil pipeline. An electromagnetic reversing valve and a pressure control valve are arranged in series on the hydraulically controlled oil pipeline. The electromagnetic reversing valve is used for controlling the logic check valve to be opened and closed. The pressure control valve is used for controlling the pressure of hydraulically controlled oil on the hydraulically controlled oil pipeline. By adopting an electronically controlled explosion-proof valve as the explosion-proof valve and arranging the explosion-proof valve in the hydraulic control system, the back pressure value of the explosion-proof valve when the hydraulic actuating element is lowered can be effectively reduced, corresponding pipeline arrangement is reduced, the pipeline connection is simple, the cost is greatly reduced, the oil leakage risk points are reduced, by arranging the explosion-proof valve in the hydraulic control system of a movable arm of the excavator, the movement speed of the movable arm is increased, and the lowering speed of the movable arm and the coordination of composite movement are not affected by mounting the explosion-proof valve additionally.
Owner:QINGDAO LOVOL EXCAVATOR

Indoor air quality detection device

InactiveCN108872491AReal-time understanding of quality statusSmooth vertical movementGas analyser construction detailsStopped workIndoor air quality
The invention relates to an indoor air quality detection device. The indoor air quality detection device comprises an air collecting bottle, wherein a motor is fixedly arranged at the top surface of the inner wall of the air collecting bottle; an output shaft of the motor faces down, and fan blades are fixedly arranged at the output shaft of the motor; electrode plates are respectively fixedly arranged at both sides of the motor, and are respectively connected with a positive electrode wiring point circuit and a negative electrode wiring point circuit of the motor; guide sleeves are respectively fixedly arranged at both sides of the back surface of the inner wall of the air collecting cylinder through fixed frames; the centerlines of the two guide sleeves are positioned on one line, and are respectively vertical to one side of the air collecting cylinder; a movable rod is arranged in each guide sleeve, and penetrates through the corresponding guide sleeve; the periphery of each movablerod is in contact fit with the inner wall of the corresponding guide sleeve. The indoor air quality detection device has the advantages that the size of indoor space is not limited; when the indoor space is larger, a flexible pipe is longer, and the period of air entering the air collecting cylinder until the motor stops work is longer; when the indoor space is smaller, the flexible pipe is shorter, and the period of air entering the air collecting cylinder until the motor stops work is shorter; the application range is broader.
Owner:CHONGQING IND POLYTECHNIC COLLEGE

Back bolt and connection structure

The invention provides a back bolt and a connection structure. The back bolt comprises an anchor pole and an expansion member. The expansion member has a cylinder main body and a plurality of expansion positions at one end of the cylinder main body, the external diameter of each expansion position is the same as that of the cylinder main body, each expansion position has a protruding portion, and the protruding portion is used as a bearing portion cooperating with a cone position of an bottom-expanded hole in a plate after the expansion position expands. The plurality of expansion portions at one end of the cylinder main body form an expansion segment, and the inner side of the expansion segment form a thinning position used for easily expanding and bending. The back bolt can well match a bottom-expanded hole, the anti-rotation and limiting measure does not influence cooperation between the back bolt and the bottom-expanded hole, and the cooperation having the good matching effect can be kept, permanent whole connection can be achieved, and the stress of an expansion position can be reduced to the minimum or zero. A never loosen connection structure can be formed using the back bolt, the connection structure can resist strong earthquake, and start-stop impact of a subway, and welding reinforcement is needless.
Owner:HANGZHOU STAN NEW MATERIALS TECH CO LTD

Downhole Information Acoustic Signal Relay System

The invention relates to a down-hole information acoustic wave signal relay system. The down-hole information acoustic wave signal relay system comprises an upper connector, an instruction bin protective cylinder and a lower connector which are sequentially connected. An energy converter protective cylinder, an instrument bin and an accelerometer protective cylinder which are sequentially connected are arranged in the instruction bin protective cylinder. The end of the energy converter protective cylinder is matched with the upper connector, and the end, connected with the accelerometer protective cylinder, of the instrument bin is connected with the end of the instruction bin protective cylinder. The end of the accelerometer protective cylinder is matched with the lower connector, and an energy converter is installed in the energy converter protective cylinder. A circuit module is arranged in the instrument bin and comprises an energy converter driving circuit, a coding and transcoding circuit and a decoding circuit, and an accelerometer is arranged in the accelerometer protective cylinder. According to the down-hole information acoustic wave signal relay system, while normal well drilling is kept, real-time receiving of acoustic wave signals carrying well drilling information and from the lower portion of a drilling pillar is achieved; the effective signals are enlarged and then occurs again, long-distance stable transmission of the well drilling information is achieved, and the damping problem when the acoustic wave signals carrying the well drilling information are transmitted is solved; and drilling fluid and a stratum are not relied on, the noise interference resistance capacity is high, real conversion of the well drilling information is achieved, and the application range is wide.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Vertical columns suitable for indoor public place and capable of being quickly demounted and mounted

The invention discloses vertical columns suitable for an indoor public place and capable of being quickly demounted and mounted. Each vertical column comprises an underground preburied device and a ground rotatable vertical column structure. According to the vertical columns, structure design is reasonable, practicality is quite high, during work, the ground rotatable vertical column structure canbe demounted (mounted) only by slightly exerting the strength upwards (downwards) to rotate the ground rotatable vertical column structure to the certain position, demounting and mounting are convenient, after complete demounting, it is ensured that the place is attractive and elegant, overall coordination of the public place is not affected, the vertical column can be used repeatedly, economization and environmental protection are achieved; the vertical column is matched with a door sill and the like for use, thus a matrix can be formed for people flow limitation, the thrust (tension) borneby each vertical column is ten times or above that of a common iron barrier with a counterweight, the structure is more stable, the vertical column can bear impact of large disorder people flow to achieve the safe flow limiting effect, the difficulty of maintaining the order by a worker is reduced, and under the effect of the underground preburied device, the phenomenon of massive collapse is avoided even if the single vertical column is damaged heavily.
Owner:CHONGQING XINGUO IND & TRADE

A back bolt and connection structure

The invention provides a back bolt and a connection structure, including an anchor rod and an expansion element. The expansion element has a cylindrical main body and a plurality of expansion parts at one end of the cylindrical main body. The outer diameter of the expansion part is consistent with the outer diameter of the cylindrical main body. , the expansion part is also provided with a protruding part, and the protruding part is used as a force-bearing part to cooperate with the cone part of the bottom expansion hole of the plate after the expansion part is expanded; a plurality of expansion parts at one end of the cylindrical main body are surrounded by The inner side of the dilated section forms a thinned area for easy expansion and bending. The invention has a good matching degree between the back bolt and the bottom expansion hole, and the anti-rotation limit measure does not affect the cooperation between the back bolt and the bottom expansion hole, and can always maintain this good matching state, realizing the integral permanent connection , the stress of the expansion part can be reduced to a minimum or even no stress; the invention realizes a connection structure that never loosens, can resist strong earthquakes, and subway start-stop shocks, and does not need to be reinforced by welding.
Owner:HANGZHOU STAN NEW MATERIALS TECH CO LTD

Hot runner system applied to heat-sensitive injection molding material, and application method of hot runner system

PendingCN111186093AMeet clean upMeet their own requirementsHot runnerHeat flow
The invention discloses a hot runner system applied to a heat-sensitive injection molding material, and an application method of the hot runner system. The hot runner system comprises a splitter plate; the splitter plate is internally provided with first splitter passages; the part, positioned at a vector intersection position of the first splitter passages, of the bottom of the splitter plate isprovided with a cutting knife groove; the circumferential side of the splitter plate is provided with a plurality of insert grooves; a runner rotating cutting knife which is matched with the vector intersection position of the first splitter passages and corresponds to the vector intersection position of the first splitter passages in a rotary cutting manner is installed inside the cutting knife groove; each insert groove is internally and detachably provided with one insert in an embedding manner; each insert is internally provided with a second splitter passage; each first splitter passage correspondingly communicates with the cutting knife groove and the second splitter passage which is arranged inside the corresponding insert; and the application method of the hot runner system comprises an installation method for the hot runner system and a method for clearing residual materials inside a runner of the hot runner system. The hot runner system disclosed by the invention has the advantages of being convenient to process and manufacture, convenient to mount and dismount, realizing convenient, complete and clean clearing of the residual materials and the like.
Owner:亿美特装备(武汉)有限公司

Downhole Pressure Monitoring System

The invention relates to an underground pressure monitoring device. The underground pressure monitoring device comprises an energy converter, an energy converter driving circuit, an encoding transcoding circuit, an annular pressure measuring element and a drill column internal pressure measuring element, wherein the energy converter, the energy converter driving circuit and the encoding transcoding circuit are connected with each other in turn; the annular pressure measuring element and the drill column internal pressure measuring element are respectively connected with the encoding transcoding circuit; an annular pressure signal measured by the annular pressure measuring element and a drill column internal pressure signal measured by the drill column internal pressure measuring element are transmitted to the encoding transcoding circuit for encoding and transcoding; the transcoded pressure signal is transmitted to the energy converter driving circuit for driving the signal; the energy converter is driven by the energy converter driving circuit to convert the transcoded pressure signal into a sound wave signal and then send the sound wave signal. The underground pressure monitoring device can achieve the purpose of accurately real-time converting the underground pressure into the sound wave signal while normally drilling; the drill column is used as a transmission channel and is independent of the drilling liquid; the noise jamming resistance is high; the transmission rate is high and the error rate is low; the underground pressure monitoring device is not influenced by the underground complex conditions, such as, gas invasion.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Current transformer air guide sleeve and GIS equipment

InactiveCN110911138AVertical dimensional accuracy is easy to controlPrevent rainwater from entering the inside of the current transformer shroudSwitchgear arrangementsTransformersDisconnectorStructural engineering
The invention relates to a current transformer air guide sleeve and GIS equipment. The GIS equipment comprises a current transformer outer cover, an isolating switch and a current transformer flow guide cover, the current transformer flow guide cover comprises a cylindrical sleeve body, the cylindrical cover body wraps the connecting part of the insulating basin and the current transformer straight-through bus shell; the upper end of the cylindrical cover body is connected with a lower-end flange of the isolating switch; wherein the lower end of the cylindrical cover body is connected with a current transformer outer cover, the upper end of the cylindrical cover body comprises an annular connecting piece which is fixed with the upper edge of the cylindrical cover body and extends outwardsalong the radial direction of the cylindrical cover body, and the annular connecting piece is provided with a connecting hole which is correspondingly connected with an axial connecting hole arrangedon a flange at the lower end of the isolating switch. By using the GIS equipment provided by the invention, the problem that water enters the current transformer air guide sleeve due to the fact thata gap is easy to occur when the current transformer air guide sleeve is connected with the outer peripheral surface of the lower end flange of the isolating switch can be effectively solved.
Owner:HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR +2

A kind of preparation method of zn-al-ni anticorrosion functional seepage layer

The invention discloses a preparation method of a Zn-Al-Ni anticorrosion functional impregnation layer, in which such elements as Al and Ni are added into a zinc impregnation agent to change the organizational structure of the conventional zinc and aluminum impregnation layer prepared through mechanical energy aided impregnation. An impregnation agent is prepared according to the following ratio (based on a total number of 100 parts): 20-50 parts of zinc powders (an impregnation supplying agent), 5-25 parts of aluminum powders (an impregnation supplying agent), 0.5-5 parts of nickel powders (an impregnation supplying agent), 0.1-2 parts of ammonia chloride (an activating agent), 0.1-2 parts of rare earth (a catalyst), and of the balance of Al2O3 powders (a filler). The preparation method of the Zn-Al-Ni anticorrosion functional impregnation layer comprises the following steps: uniformly mixing the zinc powders, the aluminum powders, the nickel powders, the rare earth and the Al2O3 powders according to the ratio, and weighing the mixture for later use; and carrying out heat preservation for 3-5 hours under the following technical parameters: a heat preservation temperature of 450 DEG C, and an impregnation furnace rotation speed ranging from 5r / min to 7r / min. The preparation method provided by the invention has the advantages that a high quality of the impregnation layer is ensured through adopted particle diameters of the powders in the impregnation layer formula, and the prepared Zn-Al-Ni impregnation layer achieves low thickness, high surface compactness, high rigidity and excellent anticorrosion performance.
Owner:ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY

A pile bearing variable stiffness reinforced cushion composite foundation and its construction method

The invention provides a pile-supported and rigidity-varied reinforced cushion composite foundation and a construction method thereof. The construction method comprises steps as follows: pile body construction of rigid piles is completed in a soft foundation by a pile forming machine, the ground is leveled, a sand and gravel layer which is 150-300 mm thick is laid and is leveled and compacted, then a first geogrid layer is laid, a sand and gravel layer which is 150-300 mm thick is laid on the first geogrid layer and is leveled and compacted, then a second geogrid layer is laid, and a cement stabilized macadam layer which is 150-300 mm thick is laid on the second geogrid layer; finally, road embankment filling is completed. According to the pile-supported and rigidity-varied reinforced cushion composite foundation and the construction method thereof, rigidity of a reinforced cushion is adjusted hierarchically, so that bearing capacity of soil among piles is sufficiently exerted, uneven settlement of a road surface is reduced, and filling limitation at the upper part is broken through. The construction method is suitable for treating foundations of cohesive soil, floury soil, sludge and mucky soil and can be applied to stabilization and treatment of foundations of structures such as earth-filled embankments, flexible surface storage yards, airport runways, oil tanks, grain depots and the like.
Owner:山东省建筑科学研究院有限公司 +1
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