5024 results about "Copper tubing" patented technology

The invention discloses a high-performance copper alloy pipe and a preparation method thereof. The Sn, Ni and P elements are compositely added into Cu, the content and proportion of all the elements are regulated and controlled, meanwhile, a recrystallization treatment process is combined, a high-proportion sigma 3, sigma 9 and sigma 27 coincidence lattice grain boundary is introduced, and the copper alloy pipe with high strength, high machining forming capacity and excellent pressure resistance, corrosion resistance and high-temperature softening resistance is prepared. Meanwhile, Zr, Co and B (optionally) elements are added on the basis of the alloy components, so that the performance of the copper alloy pipe is further improved. The tensile strength, the processing formability, the pressure resistance, the corrosion resistance and the high-temperature softening resistance of the copper alloy pipe are far better than those of a TP2 copper pipe of the same specification and an existing high-strength copper pipe, the performance requirements of the high-pressure-resistance thin-wall seamless copper pipe are met, and the copper alloy pipe has wide application prospects in the heat exchange field.

The invention relates to the field of welding seam detection, in particular to an air conditioner refrigeration copper pipe welding defect detection device which comprises a base, positioning assemblies are symmetrically arranged on the two sides of the upper end of the base, each positioning assembly comprises a shell with a central through hole, a to-be-detected copper pipe horizontally penetrates through the central through hole of the shell, and a fixed cross beam is fixedly arranged between the top ends of the shells. Fixed ring frames are fixedly arranged at the two ends of the bottom of the fixed cross beam, movable ring frames are rotatably mounted in the fixed ring frames, the two movable ring frames are fixedly connected through mounting plates, the number of the mounting plates is four, the mounting plates are distributed in a cross shape, a pressure assembly is arranged on the mounting plate at the top end, and a detection assembly is arranged on the mounting plate at the bottom end. The stress load is gradually applied to the weld joint position of the to-be-detected copper pipe through the pressure assembly, and the deformation process of the weld joint position is monitored in real time in cooperation with the detection assembly, so that the bending strength of the weld joint position of the to-be-detected copper pipe can be dynamically detected in the circumferential direction.

The invention relates to the technical field of copper pipe optimization, in particular to an internal thread copper pipe structure size optimization method, system and equipment and a storage medium, and the method comprises the steps: determining a transformation relation fitting curve, a heat exchange coefficient change rule curve and a gram weight per meter change rule curve of an internal thread pipe, and adjusting geometric parameters according to the curves, forming a parameter optimization scheme; according to the parameter optimization scheme, a three-dimensional model corresponding to the internal thread pipe is established, and quantitative solution calculation is carried out; according to the quantitative solution calculation result, when it is determined that the design requirement can be met, the three-dimensional model is loaded to form a corresponding forming mold; simulating a ball spinning process for the three-dimensional model and the forming mold, and performing finite element analysis; adjusting the design parameters of the forming die according to the analysis result until the forming design requirement can be met; the structure size of the internal thread copper pipe can be simulated and optimized, the product performance of the optimization scheme is predicted, the optimal optimization scheme is obtained, and the debugging requirement in actual production is reduced.

The invention discloses a welding device for air conditioner refrigeration copper pipes, and relates to the technical field of air conditioner refrigeration copper pipe welding tools, the welding device comprises a base and a cooling box mounted on one side of the top of the base, a rotating disc is arranged in the middle of the top surface of the base, and an electric rotating chuck is mounted on the top of an annular table; a connecting assembly is installed at the telescopic end of the electric push cylinder, and a heating mechanism is installed in the U-shaped frame. A driving assembly is arranged in the cooling box; a hot melting mechanism is arranged at the bottom of the front end of the L-shaped plate, and an automatic welding mechanical arm is installed at the outer end of the sliding base. Through cooperation of the electric rotating chuck, the heating mechanism and the connecting assembly, rotary surrounding type impurity heat treatment can be conveniently achieved on the welded refrigeration copper pipe, the primary welding effect on the refrigeration copper pipe can be achieved, automatic rotating welding operation or manual welding operation can be selected according to requirements, and the welding efficiency is improved. And the copper pipes can be switched from the vertical state to the transverse state, and the applicability of the device to welding operation of different copper pipes is improved.

The invention discloses a copper pipe cutting machine, and relates to the technical field of cutting machines, the copper pipe cutting machine comprises a machine tool, the middle of the machine tool is fixedly connected with a fixing frame, the top of the fixing frame is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a first gear, the interior of the fixing frame is rotatably connected with a clamp, and the outer surface of the clamp is fixedly connected with a first gear ring; a clamping jaw is slidably arranged on the right side of the clamp, and a strip-shaped shell is fixedly connected between the left side of the fixing frame and the machine tool. The horizontal concentric positions of the stabilizing rings and the clamp are kept, the horizontal concentric positions of the stabilizing wheels and the clamp are also kept, rotation of the copper pipe can be kept stable through rolling, abutting and supporting of the stabilizing wheels on the copper pipe, and therefore the situation that due to the fact that the copper pipe is inclined, a cutter cannot evenly cut the copper pipe is reduced. And the copper pipe can be prevented from being impacted by the copper pipe, so that the service life of the cutting knife is prolonged.

The invention relates to the technical field of laser rotary cutting, and discloses a laser rotary cutting mechanism for metal part machining. Comprising a laser cutting head connected to the laser rotary cutter, a clamping and rotating mechanism connected to the laser rotary cutter, a movable push block connected to a rack of the laser rotary cutter, a suction pipe installed on the movable push block and a slag suction copper pipe connected to the suction pipe. The arc-shaped scraping plate is arranged in the slag extraction copper pipe and connected with the rotating shaft through the connecting rib, the arc-shaped scraping plate can move along with the extraction pipe, the arc-shaped scraping plate annularly rotates in the slag extraction copper pipe, the arc-shaped scraping plate can effectively scrape metal slag attached to the inner wall, corresponding to the opening, of the slag extraction copper pipe, and the metal slag can be effectively removed through the negative pressure fan of the arc-shaped scraping plate. The scraped metal slag can be smoothly pumped away and cannot be accumulated in the slag pumping copper pipe; and the arc-shaped scraping plate is matched for multiple scraping operations, so that the accumulation thickness of the metal slag on the inner wall of the slag pumping copper pipe is avoided, and the problem of pipeline blockage or unsmooth pumping caused by slag accumulation is reduced.

The invention provides a dynamic compensation method and system for copper pipe straightening, which are applied to the technical field of copper pipe straightening, and dynamically calculate and adjust the position of a straightening roll by sensing the center position coordinate and the section torsion angle of a copper pipe in real time and based on a correlation model of attitude and mechanical action so as to compensate the mechanical action deviation caused by attitude change. The problems that in the high-speed straightening process of the copper pipe, due to posture changes such as dynamic torsion, straightening mechanical action deviation is caused, and the straightening precision is affected are solved, and the advantage of improving the straightening precision is achieved.

The invention is suitable for the technical field of copper pipe cutting, and provides a copper pipe cutting device and method for refrigeration air conditioner machining, the copper pipe cutting device for refrigeration air conditioner machining comprises a workbench, a limiting seat is arranged on the workbench, and clamping mechanisms used for fixing a copper pipe are arranged on the two sides of the limiting seat; the workbench is fixedly connected with a supporting frame, the supporting frame is fixedly connected with an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected with a fixing frame, the fixing frame is connected with a limiting mechanism, and the limiting mechanism can vertically limit a copper pipe; buffering assemblies are fixedly connected to the two ends of the electric telescopic rod correspondingly, and a cutting assembly is horizontally limited between the two buffering assemblies. According to the method, the regulation and control analysis model fuses vibratology, thermodynamics and the material processing principle, real-time quantitative prediction of'cutting precision 'which cannot be directly observed is achieved through measurable parameters, and a theoretical core is provided for intelligent manufacturing.

The invention discloses a production method for reducing slag runners in a spring steel square billet casting process, which specifically comprises the following steps: the superheat degree of continuous casting molten steel is 20-40 DEG C, slag is automatically added into a continuous casting square billet, and casting powder is conveyed into a crystallizer by taking compressed air as a carrier, so that a high-concentration compressed air atmosphere at an upper opening of the crystallizer is ensured, and the casting quality is improved. And a combustion-supporting effect is achieved on the casting powder, so that the melting effect of the casting powder is improved. And the insertion depth of the submersed nozzle is 70-80mm, so that the higher temperature of molten steel on the meniscus of the crystallizer is ensured, and the slag surface melting effect is improved. The slag line is not changed in the casting process; the crystallizer uses vibration parameters with high vibration frequency and high amplitude, so that the negative slippage time and the vibration advance amount of the crystallizer are improved, the inflow of liquid casting powder in an air gap between a steel billet and a copper pipe is facilitated, and the slag runner phenomenon in the casting process of the casting blank is avoided.

The invention belongs to the technical field of industrial cooling, and particularly relates to a microflow cold liquid temperature control cooling system, method and device, and the system comprises a main control board which is internally provided with a main control module; the micro liquid pump is in signal connection with the main control module; and the cold liquid pipelines are arranged at two ends of the micro liquid pump. According to the system, method and device, liquid is driven to flow through the micro pump, at the moment, the liquid can absorb and dissipate heat more efficiently due to the characteristics of high heat capacity and heat conductivity, heat can be conducted and dissipated from a heating source quickly and effectively through effective cooperation of the metal heat conduction block, the heat conduction copper pipe, the heat dissipation fins and other components, and the heat dissipation efficiency is improved. Intelligent control over the system is achieved through the main control module, the flow speed of cooling liquid can be automatically adjusted according to actual temperature changes so that the optimal heat dissipation effect can be achieved, and the system state can be monitored in real time and stable operation can be ensured by adding assemblies such as a miniature temperature sensor, a pressure sensor and a flow sensor.

The utility model discloses a compact type snow melting machine shell structure and a snow melting machine, the compact type snow melting machine shell structure comprises a fixing assembly and a coaming assembly, the coaming assembly comprises a front vertical plate, a rear vertical plate, a first side vertical plate and a second side vertical plate which surround the periphery of a chassis, the snow melting machine comprises a stirring assembly and a refrigerating assembly, the stirring assembly comprises a supporting frame and a stirring mechanism arranged on the supporting frame, the stirring mechanism comprises a driving motor and a scraper, the refrigerating assembly comprises an evaporator and a condenser, the condenser comprises a copper pipe elbow and an end plate, and the end plate is arranged on the supporting frame. The copper pipe elbow and the end plate are arranged on the upper side and the lower side of the condenser, and the snow melting machine comprises the shell structure of the compact snow melting machine. According to the utility model, the width can be reduced, the occupied space is reduced, the structural integrity is stronger, and the requirements of family scenes can be met.

The utility model belongs to the field of crude oil heating, and particularly relates to a crude oil heating device which comprises an air energy heat pump, a water-oil heat exchanger, an air-oil heat exchanger, a solar hot air heat collector and a ground source heat exchanger. A heat exchanger tube pass is arranged in an inner cavity of the water-oil heat exchanger, the two ends of the heat exchanger tube pass are communicated with a heat exchanger oil conveying pipe, and the ground source heat exchanger is communicated with an air source evaporator copper pipe and used for evaporating refrigerants in a pipeline of the ground source heat exchanger and the air source evaporator copper pipe. The heat pump and other two heat sources can form a multi-source heating device, and the system keeps constant temperature through crude oil secondary heat exchange and phase change heat storage, is energy-saving, efficient and pollution-free, can adapt to cold weather, and is suitable for popularization.

The invention discloses a copper pipe blank horizontal continuous casting process optimization method based on machine learning assistance, and relates to the technical field of copper and copper alloy pipe blank horizontal continuous casting. The method comprises the steps of S1, data collection, S2, model construction, S3, hyper-parameter optimization, S4, model training and verification, S5, effect evaluation and S6, prediction and optimization of process parameters. A new particle swarm optimization algorithm is used for optimizing a neural network prediction model, the neural network prediction model is applied to the horizontal continuous casting process, the accuracy and the reliability are remarkably improved after the model is optimized, an online rapid calculation system, the particle swarm optimization algorithm and a multi-layer neural network model are combined, crystalline region parameters are accurately predicted and controlled, and the continuous casting quality is improved. Data obtained by an existing rapid calculation system has certain limitation, process parameters obtained based on a production field and crystallization position parameters under a corresponding mold are continuously added into a model training database, and prediction data are more accurate and closer to the current production situation.

The invention discloses a multiphase erosion corrosion coupling damaged pipeline simulation experiment test system and method. Comprising a screw pump, a pressure measurement module, a high-pressure rubber expansion joint, a gas release module, a check valve, a special feeding module, a temperature control measurement module, a wall shear force measurement bin, a fluid acceleration module, a buffer tank, a pipeline pressurization module, a temperature sensor, an electric control cabinet and a copper pipe coil cooler which are arranged on a circulating pipeline. The problem that the gas-liquid / gas-liquid-solid multi-phase erosion and corrosion coupling damage rule and the predicted damage rate are difficult to test in a high-sulfur, high-chlorine and high-acid severe environment in a petrochemical chemical production device is solved, and the damage rate of the petrochemical chemical production device is predicted by designing a special feeding structure, a pressurizing structure, an accelerating structure, a constant temperature structure, an anti-corrosion structure, an anti-abrasion structure, an anti-vibration structure and other structures and a temperature, flow, concentration and pressure precise regulation and control system. Long-time stable operation and accurate measurement of multi-phase scouring and corrosion coupling damage are realized, and safety evaluation and risk prevention and control of complex flow-induced damage of a petrochemical chemical production device are effectively supported.

The invention discloses a multi-defect synchronous detection device for copper product processing and a use method thereof, and belongs to the technical field of copper product detection.The multi-defect synchronous detection device comprises a mounting base and a defect detection system applied to the detection device, a positioning groove is formed in the upper surface of the mounting base, and a copper pipe is placed in the positioning groove; according to the device, firstly, a pair of detection mechanisms are installed below an I-shaped pipe and an L-shaped pipe correspondingly, so that synchronous detection of the inner wall and the outer wall of the copper pipe is achieved, the problem that the inner wall and the outer wall are detected and separated in a traditional detection method is solved, and the detection efficiency and accuracy are greatly improved; the detection system can emphatically identify and evaluate the risk of the position again, the problem of product quality misjudgment caused by dependence on a single detection standard is prevented, potential safety risks existing in products are eliminated in time, the product quality level is improved, meanwhile, the use safety of the products is enhanced, and the detection system has wide application prospects and market value.

The invention discloses a copper pipe cutting method and device.The copper pipe cutting device comprises a workbench, a limiting conveying mechanism and a cutting mechanism, the limiting conveying mechanism comprises a clamping mechanism and a belt conveyor, and the clamping mechanism comprises a box body, a housing and an opposite moving assembly; and the clamping assembly is erected on the top of the housing and connected with the opposite-direction moving assembly, and the housing is arranged on the top of the box body in a sealed mode and defines a containing cavity for installation of the opposite-direction moving assembly. According to the copper pipe cutting method and equipment, by arranging the limiting conveying mechanism and adopting the belt conveyor, horizontal feeding of copper pipe raw materials can be achieved, conveying of copper pipe raw materials of various lengths can be adapted under limiting of the clamping assembly, stability is not affected, meanwhile, rapid switching of positioning and limiting of the copper pipe raw materials can be achieved by means of the opposite moving assembly, and the copper pipe cutting efficiency is improved. And in cooperation with the cutting mechanism, continuous cutting operation of copper pipe raw materials can be completed, and the cutting efficiency is improved.

Disclosed in the present invention are a flame-retardant leaky cable and a production method. The flame-retardant leaky cable comprises a sheath, an outer conductor, an insulating layer and an inner conductor which are sequentially arranged from outside to inside. A flame-retardant layer is longitudinally arranged between the sheath and the outer conductor or between the outer conductor and the insulating layer; the flame-retardant layer is a mica tape or PTFE; a plurality of radiation slot holes are formed on the outer conductor; the inner conductor is a spiral copper tube or a smooth copper tube; when the flame-retardant layer is longitudinally arranged between the sheath and the outer conductor, and only covers the radiation slot holes. According to the present invention, the flame-retardant layer having a low dielectric constant is longitudinally arranged between the outer conductor and the sheath or between the insulating layer and the outer conductor, so that the flame-retardant grade of the leaky cable is effectively improved, and the flame-retardant requirements of related laying places are met.

The utility model discloses an automatic copper pipe feeding device which comprises a machine frame and a material box, a material bin is arranged on the machine frame, a material box placing position is arranged on one side of the material bin, and a plurality of copper pipe placing steps and a material pushing plate which enables copper pipes to move to the copper pipe placing steps and inclines towards the machine frame from bottom to top are arranged on the other side of the material bin. A plurality of material pushing steps are arranged on the material pushing plate, the rack is further provided with a driving mechanism for driving the material pushing plate to slide up and down along the rack, supporting plates are arranged at the upper end of the material pushing plate at intervals, and feeding steps are arranged on the sides, facing the material box, of the supporting plates; by arranging the parking step and the material pushing plate, arranging the material pushing step on the material pushing plate, and driving the material pushing plate to move up and down by the driving mechanism, under the cooperation of the material pushing step and the parking step, the copper pipe can be quickly conveyed to the material feeding step, the copper pipe can be conveniently captured by a manipulator, and the problems of surface scratching, deformation and the like of the copper pipe cannot be caused.

The invention provides special-shaped copper pipe machining equipment for a copper-aluminum composite bar and a machining method of the special-shaped copper pipe machining equipment, and relates to the technical field of copper pipe rolling machining. The special-shaped copper pipe machining equipment for the copper-aluminum composite bar comprises a machine tool, and a rolling device, a driving device, a flame jetting device and a straightening device are arranged on the upper surface of the machine tool. According to the special-shaped copper pipe processing equipment for the copper-aluminum composite bar, the fire spraying assembly is arranged in the copper pipe for continuous heating to prevent temperature loss, and the lining assembly is matched to abut against the heated inner wall, so that the problem that uncontrollable pits, protrusions and falling metal impurities are generated on the inner wall in the rolling process due to the fact that the inner wall of the copper pipe is lack of supporting is solved; and the problem of slipping or rigid fracture in the compression process due to temperature loss when the steel sheet enters a medium-temperature brittle zone is prevented.

The invention discloses an automatic copper pipe tooth rolling production line, and belongs to the technical field of copper pipe tooth rolling machining. The gear rolling production line comprises a plurality of gear rolling machines, a feeding line and a feeding assembly. The feeding assembly comprises a feeding conveying mechanism, a jacking distributing mechanism, a feeding buffering mechanism and a longitudinal conveying mechanism. The feeding conveying mechanism comprises a feeding frame and a plurality of feeding conveying units, the feeding temporary storage mechanism comprises a feeding temporary storage frame, and a temporary storage part of the feeding temporary storage frame and a bearing surface of a discharging guide part are obliquely arranged; the jacking and distributing mechanism comprises a jacking and distributing unit, and the jacking and distributing unit comprises a first-stage jacking frame and a second-stage jacking frame. The position layout of the tooth rolling machines is reasonable, the space of a plant workshop is fully utilized, the feeding requirements of multiple tooth rolling machines can be met by arranging the feeding assembly on one layer and one feeding line in the workshop, the production rhythm of the multiple tooth rolling machines can be met, copper pipes are stable, reliable and high in conveying efficiency in the conveying process, the falling risk is avoided, and the production efficiency is improved. And the safety of equipment and personnel is ensured.

The invention discloses a method for preparing a graphene copper rod by multi-pass continuous extrusion, which comprises the following steps of: mixing copper powder and graphene powder, and annealing with a copper pipe in inert gas; a continuous extrusion process is adopted, mixed powder of copper and graphene is added into a copper pipe, and the graphene copper rod is prepared through multi-pass continuous extrusion. According to the preparation method, process control and operation are convenient, the graphene copper mixed powder is loaded into the copper pipe for continuous extrusion, the preparation process of the graphene copper composite material is simplified, meanwhile, the copper pipe is beneficial to keeping the stable form of the copper powder in the extrusion process, and the complexity of process control is reduced.

The utility model discloses an automatic packaging line for straight refrigeration copper pipes, which relates to the technical field of refrigeration copper pipe production, and comprises a device main body, a conveying belt, a first clamping block, a second clamping block and a third clamping block, driving motors are mounted at two ends of the device main body, and the exteriors of the output ends of the driving motors are in transmission connection with the conveying belt through transmission shafts; the number of the conveying belts is two, a baffle is arranged on the surface of one conveying belt, the two conveying belts are distributed at the two ends of the device body, the rolling wheels can enable the binding film to wind the copper pipe while rotating around the copper pipe, and then the lifting plate moves downwards under the action of the first air pressure rod so as to make contact with a limit at one end of the copper pipe; the copper pipe can continuously move forwards, the binding film can be wound outside the copper pipe, dust can be prevented from falling on the surface of the copper pipe while the copper pipe is bound and packaged, and therefore the number of procedures is reduced, and the packaging efficiency can be improved.

The utility model relates to the technical field of air conditioning units, in particular to an air-cooled screw type water chilling unit which comprises a lower fixing frame, an upper fixing frame is fixed on the upper surface of the lower fixing frame, the upper end of the upper fixing frame is communicated with two air inlets, heat dissipation fans are fixed in the two air inlets through bolts, and the two air inlets are communicated with the heat dissipation fans through bolts. Four protective nets are symmetrically fixed to the outer wall of the upper fixing frame, two cooling fins are fixed to the interior of the upper fixing frame, heat conduction copper pipes are fixed to the interiors of the two cooling fins, circulating pipes are fixed to the interiors of the heat conduction copper pipes, and fixing flange pipes are fixed to the two ends of each circulating pipe. According to the unit, the heat conduction copper pipe is arranged on the circulating pipe in the sleeved mode, the heat conduction copper pipe can absorb heat of a medium and transmit the heat to the cooling fins, the cooling fan blows air to the cooling fins from top to bottom, and therefore the contact area of the cooling fins and the air is increased, cooling of the medium is improved, and the unit has the good blowing cooling effect.

A tool operable to expand an end of a pipe, such as copper tubing, has a cylindrical jaw assembly with semi-cylindrical jaws movable between a closed position and an expanded position and rotatable about a longitudinal axis. A motor drives an output spindle driven by the motor, which in turn drives a radial cam. A wedge is movable by the radial cam in a reciprocating motion along the axis, causing the wedge to move between a first position where the jaws are in the closed position and a second position where the jaws are in the expanded position. A rotating ring is mounted on the wedge and connected to the jaws. The rotating ring is driven by the output spindle for rotating the jaws about the axis.

The invention relates to the technical field of copper pipe machining and drawing, in particular to a drawing device for seamless internal thread copper pipe machining, which comprises a bottom plate, a fixing plate is fixedly connected to one side of the top end of the bottom plate, a drawing mold is fixedly connected to the fixing plate, and a lubricating mechanism and a cooling mechanism are arranged on the fixing plate. Vertical side plates are fixedly connected to the two sides, corresponding to the fixing plate, of the top end of the bottom plate, drawing mechanisms are arranged on the two vertical side plates, and buffering discharging mechanisms are arranged on the inner sides, corresponding to the vertical side plates and the fixing plate, of the top end of the bottom plate. The lubricating mechanism comprises a rotating ring, an annular groove is formed in the outer wall of the rotating ring, and a plurality of circular holes are formed in the annular groove in a penetrating mode; according to the invention, the friction force in the drawing process can be reduced, the abrasion to the drawing die and the seamless internal-thread copper pipe is reduced, the drawing force is uniformly distributed on the outer surface of the seamless internal-thread copper pipe, and the drawing efficiency and the drawing quality of the seamless internal-thread copper pipe are ensured.

The invention discloses a preparation method of a multi-core Nb3Sn composite wire and the composite wire. The method comprises the following steps: loading an Nb rod into an oxygen-free copper pipe to obtain a CuNb single-core rod; the CuNb single-core rods and the hexagonal copper core rods are sequentially arranged in a CuMn alloy pipe at intervals to obtain a multi-core CuNb composite sheath, and then the multi-core CuNb composite sheath is machined into a CuNb composite rod; the CuNb composite rod is machined into a CuNb composite pipe; the SnTi alloy bar is loaded into the CuNb composite tube to obtain a sub-component; a hexagonal CuMn subcomponent is obtained through machining; the hexagonal CuMn subcomponent and the SnCu alloy bar are assembled into a Ta tube and then integrally assembled into an oxygen-free copper tube to obtain a composite wire, and the composite wire is processed to obtain the Nb3Sn superconducting wire. CuNb single core rods on the outermost layer are adjusted to be in discontinuous close arrangement, the problem that machining cracking is prone to occurring in the subcomponent preparation stage due to the fact that Cu on the outer portions of the single core rods is little is solved, the deformation consistency of the wire in the composite wire machining stage is further enhanced by using the CuMn alloy on the outer portions of the subcomponents, it is also guaranteed that the wire cannot crack when stretched, and the service life of the wire is prolonged. The fan-shaped SnCu alloy bars are additionally arranged, so that sufficient Sn is ensured when the wire Nb generates Nb3Sn.

The utility model provides a water cooling plate for a high-power heating tube, belongs to the technical field of water cooling plates, and solves the problem that the heat dissipation requirement of the high-power heating tube is difficult to meet in the prior art. The radiator comprises a base plate, a first copper plate used for placing a heating pipe is installed on the base plate, a first cavity is formed in the first copper plate, a baffle is arranged in the first cavity, the first cavity is provided with a water inlet and a water outlet which are located in the two sides of the baffle respectively, and a plurality of first fins are arranged in the first cavity. The heating tube is placed on the first copper plate, the contact area is increased compared with that of a copper tube, the first cavity and the first fins are arranged in the first copper plate, heat absorption is accelerated, and therefore it is ensured that heat generated by the high-power heating tube can be taken away rapidly.

The invention relates to the technical field of packaging structures, in particular to a copper pipe finished product packaging device and method.The copper pipe finished product packaging device comprises a machine table and a winding packaging part installed on one side of the machine table, a round hole allowing a copper pipe to penetrate through is formed in the middle of the machine table, and the winding packaging part is used for winding a packaging belt on the outer wall of the copper pipe in a conveying state; the end portion of the copper pipe is packaged through the redundant packaging belt generated when the copper pipe is wound and packaged, comprehensive packaging work of the copper pipe can be achieved, packaging work of the end portion of the copper pipe and packaging work of the outer wall of the copper pipe can be conveniently completed on one device, the packaging mode and packaging steps are simplified, and the automation degree is improved; the top plate is utilized to extrude and gather the redundant packaging tape and extrude the redundant packaging tape into the copper pipe, so that effective protection layers can be conveniently formed at the end part and the interior of the copper pipe.

The utility model relates to the field of air treatment equipment, and discloses an efficient temperature and humidity adjusting fresh air handling unit which comprises a fresh air channel and an air return channel which are located in a machine shell, and a filter screen, a fluorine pump system, an evaporator, a reheating coil pipe, a humidifier and an air feeder are arranged in the fresh air channel. A filter screen, a fluorine pump system, a condenser, a compressor and an air feeder are arranged in the air return channel, the fluorine pump system is located between the filter screen and the evaporator and comprises a sprayer, a heat exchanger, a copper pipe and a pump, a one-way valve and an electromagnetic valve are connected to the reheating coil, and an expansion valve is further connected to the evaporator. The energy utilization rate is increased, energy consumption is effectively reduced, the refrigeration efficiency is improved, and the overall energy-saving and environment-friendly effects are improved.

The invention discloses a coaxial superconducting joint structure suitable for a CICC conductor and a preparation method, and belongs to the technical field of superconducting magnet joint design and manufacturing. The two stainless steel tubes are respectively arranged at the tail end core parts of the two CICC conductors, the tail end axes of the two stainless steel tubes are aligned, and the end parts are tightly attached; the two copper pipes sleeve the peripheries of the two CICC conductor tail end superconducting cables, the tail end axes of the two copper pipes are aligned, and the end parts of the two copper pipes are tightly attached; the indium conducting layer is wound on the peripheries of the two copper pipes; the four fan-shaped copper sheets jointly wrap the periphery of the indium conducting layer; the two stainless steel shells wrap the peripheries of the four fan-shaped copper sheets, and the two ends of the two stainless steel shells are connected with the stainless steel armors at the tail ends of the two CICC conductors respectively. The CICC coaxial connector has the advantages that coaxial connection between the two CICC conductors is achieved, the occupied radial space is small, and the arrangement requirement of a narrow space is met. The superconducting joint structure has excellent resistance characteristics and low alternating current loss.