90 results about "Bell jar" patented technology

The invention discloses an easy-to-clean antibacterial ceramic tile glazing device, relates to the technical field of glazing equipment, and aims to solve the problem that the glaze pouring range cannot be adjusted in the ceramic tile glazing process, so that the rotation consumption of glaze liquid is relatively large. According to the invention, a double-side glazing area is formed through the structural design of combining a glaze outlet flat nozzle with a glaze guide bar I and a glaze guide bar II which have the length equal to the diameter of a bell jar disc and are arranged in a crossed manner, and the glaze outlet flat nozzle structure is used for forming glaze liquid outlet limitation to form flat glaze distribution; the glaze liquid is continuously and bidirectionally applied in a double-side glazing area formed by the glaze guide bar I, the glaze guide bar II and the bell jar disc, and the glaze liquid and the double-side glazing area are combined to jointly form double-side continuous and uniform application so as to achieve absolute limitation on the glaze outlet amount and the glaze outlet area; namely, the continuous to-be-glazed ceramic tile can be subjected to double-side continuous glazing operation under the double limitation of the glaze output amount and the glaze output area in the glazing process, and the glazing device is suitable for glazing ceramic tiles with different sizes.

The invention relates to the technical field of electrolyte cleaning, and discloses an electrolyte cleaning system which comprises an anode unloading station, a tipping station, an anode scrap loading station, a pre-crushing station, a driving part, a shearing part, a hammering part, a cleaning part, a positioning part, a collecting part, a self-grinding part and an electrolysis bin, and the driving part is sequentially connected with the anode scrap loading station, the pre-crushing station, the shearing part, the hammering part and the cleaning part in series. The collecting part is located below the tipping station, the anode scrap loading station, the pre-crushing station, the shearing part, the hammering part and the cleaning part, a conveying piece is arranged between the autogenous grinding part and the electrolysis bin, the bottom surface of the driving part is slidably connected with a catenary, the lower end of the catenary is provided with a catenary bell jar, the catenary bell jar is detachably connected with a guide rod of an anode scrap group, and the hammering part is arranged right opposite to an output port of the shearing part. The cleaning part is arranged right opposite to an output port of the hammering part; the positioning parts are respectively arranged in the pre-crushing station, the shearing part, the hammering part and the cleaning part; electrolytes on the surfaces of multiple anode scrap groups can be cleaned at the same time, and the cleaning efficiency is improved.

The utility model discloses a bell jar with a dustproof structure, which comprises a bell jar main body, the top end of the bell jar main body is provided with an assembly connecting hole, the inner side of the assembly connecting hole is detachably provided with a plurality of sealing clamping plates, and the sealing clamping plates are fan-shaped and are distributed in a circular array around the circle of the assembly connecting hole. A clamping groove is formed in the outer side of the sealing clamping plate, the sealing clamping plate is clamped to the inner side of the assembly connecting hole through the clamping groove, a contact plate is installed on the inner side of the clamping groove, an adjusting spring is arranged between the inner side of the contact plate and the sealing clamping plate, and the two ends of the adjusting spring are fixedly connected with the contact plate and the sealing clamping plate respectively. The gap between the sealing clamping plate and the transmission shaft inserted in the assembly connecting hole is adjusted through the contact plate and the adjusting spring, it is guaranteed that the sealing clamping plate is attached to the outer surface of the transmission shaft all the time, the gap between the assembly connecting hole and the transmission shaft is sealed, and external dust is prevented from entering the bell jar body.

The utility model belongs to the technical field of glaze pouring equipment, and particularly relates to a bell jar height adjusting device which comprises a bell jar, a bracket and a supporting stand column, the bell jar is fixedly connected to the bracket, the bracket is connected to the supporting stand column in a lifting mode through an adjusting assembly, an adjusting rack is vertically arranged on the supporting stand column, and the adjusting assembly comprises an adjusting gear. The adjusting gear is meshed with the adjusting rack, the adjusting gear is connected with a rotary driving piece, and a locking assembly is further arranged on one side of the adjusting assembly. The bell jar is fixedly connected to the bracket, the bracket is connected to the supporting stand column in a liftable mode through the adjusting assembly, the adjusting rack is vertically arranged on the supporting stand column, the structure is simple, adjustment is more convenient, the height of the bell jar is adjusted through transmission of the gear and the rack, the gear can be directly rotated to enable the bell jar to ascend and descend, and the bell jar is convenient to adjust. And the lifting of the bell jar can be quickly adjusted.

The invention provides a high-conductivity free-cutting copper alloy material and a preparation method thereof, and belongs to the technical field of alloy smelting. The preparation method of the high-conductivity free-cutting copper alloy material comprises the following steps: (1) smelting: heating and melting cathode copper, and covering with crystalline flake graphite in the melting process; and boron-copper alloy deoxidation, high-purity tellurium and high-purity iron powder are added. A graphite bell jar is used for adding. The temperature is increased to 1200-1250 DEG C, and heat preservation is conducted for 15-30 min so that alloy elements can be homogenized; adjusting the furnace temperature to 1170-1190 DEG C, and casting into an ingot through a high-purity graphite mold; (2) hot extrusion forming; (3) pickling and hydraulic drawing; and (4) straightening and sizing to obtain the required copper alloy material. According to the copper alloy material, at the room temperature (25 DEG C), the conductivity is larger than or equal to 90% IACS, the machinability is 80% or above higher than that of an HPb63-3 material in the same state, and the tensile strength is larger than or equal to 350 MPa when the cold machining deformation is 50%.

The invention provides a bell jar lifting part sleeve lifting structure for a fluorination furnace, which comprises a device main body, the device main body comprises a positioning block, the upper side and the lower side of the positioning block are respectively provided with a lifting block, the lifting block comprises a first connecting block, the first connecting block is connected with a second connecting block through a pin shaft, and the second connecting block is connected with a lifting arm through a hexagon socket cap screw. A fixing block for an adjusting bolt is arranged behind the second connecting block and connected with the second connecting block through the adjusting bolt, the position of the second connecting block is adjusted, and the connecting precision is guaranteed. The lifting arm is driven by a lifter, the lifter comprises a lifting rod, the lifting arm moves along the lifting rod, a nut seat is arranged at the lower end part of the lifting arm, and the nut seat is connected with the lifting rod through a nut. No complete rigid connection is used beside the connecting part of the lifting mechanism and the bell jar, assembling is more convenient, the hinge pin is used for connection, and the impact force generated when moving begins can be reduced during bearing ascending or descending.

The utility model provides a flange used for a bell jar standing cavity and the bell jar standing cavity, and the flange used for the bell jar standing cavity comprises an annular flange main body and an external connection part used for being connected with an external base, the external connecting part is arranged on the outer side wall of the flange main body; an annular butt joint groove used for being in butt joint with a bell jar standing cavity is formed in the upper end of the inner side wall of the flange body, and the bottom wall of the annular butt joint groove is connected with the inner side wall of the flange body through a first inclined face. The first inclined face is used for being matched with the bottom end face of the bell jar standing cavity to form a first groove used for welding when the bell jar standing cavity is embedded in the annular butt joint groove. According to the utility model, the effective length of the weld joint at the joint of the flange and the bell jar standing cavity is increased, so that the stress level of the weld joint in unit length is effectively reduced, the connection stability between the flange and the bell jar standing cavity is enhanced, and the overall rigidity of a final product is improved.

The utility model belongs to the technical field of detection equipment, and discloses a bell jar coaxiality and flatness detection device, which comprises a base, a center rod is arranged on the base, two extension rods are horizontally arranged on the center rod, and dial indicators are arranged at the end parts, far away from the center rod, of the extension rods; the center rod is connected with the base through a bearing; the extension rod is connected with the center rod through a screw arranged on the center rod in a penetrating mode. The two extension rods are positioned on the same central surface of the central rod; a boss is arranged on the base, and the outer edge of the boss is circular; the device can efficiently detect the coaxiality and flatness of the bell jar, and is simple in structure and convenient to operate.

The utility model discloses a bell jar fixing device and have its glaze showering device relates to the technical field of porcelain tile glaze processing, include: glaze showering bucket, the glaze showering bucket has the glaze outlet of downside and the glaze bucket opening of upside, the glaze pipe is arranged above the glaze showering bucket, the fixed frame is including the glaze pipe support, the fixed part, the fixed part includes the first connecting sleeve and the second connecting sleeve, the second connecting sleeve includes the pipe section, the bending section and the pipe section in proper order, through the fixed part for fixing glaze pipe and glaze pipe support, the pipe section and the pipe section between the pipe section of fixed part form certain angle because of the bending section, and the glaze pipe passes the pipe section, the bending section in proper order and then stretches out from the pipe section, not only convenient adjustment glaze pipe's output end's pointing, and this design still can ensure that the vibration that glaze bucket input end formed is when the corresponding bending section position is eliminated, ensures that the vibration of glaze pipe's output end can be enough alleviated even to eliminate.

The utility model discloses a sealing structure for a discharge port of a hanging tank, relates to the technical field of concrete hanging tanks, and aims to solve the problem that high-flow-state self-compacting concrete leaks from the discharge port in the hanging tank transportation process. The sealing structure comprises a soft annular taper sleeve sleeved on the discharge port of the hanging pot, the soft annular taper sleeve is sleeved on the discharge port of the hanging pot through an insertion cavity at the top, and a sealing washer is formed at the bottom of the discharge port of the hanging pot, so that a gap is prevented from being generated between the discharge port and the radial gate. In order to prevent relative sliding, an internal fixing piece and an external fixing piece are further structurally designed. In addition, the arc door gap sealing strip integrally formed with the soft annular taper sleeve is arranged at the bottom of the soft annular taper sleeve, and concrete is further prevented from leaking from the split arc door gap. According to the sealing structure, the sealing performance of the discharging port of the hanging tank is effectively improved, the material leakage phenomenon is reduced, and the sealing structure is suitable for transportation and pouring of high-flow-state self-compacting concrete.

The application discloses a kind of methods for detecting the transmittance of quartz reaction chamber of epitaxial equipment, including but not limited to esther200C, esther200L, LPE 3061S and LPE2061S epitaxial equipment, use external color camera with PLC industrial computer equipment to shoot the image of bell jar observation window and temperature measurement window area, select the light transmission area for analysis, divide the effective light transmission area into several microcircuits, calculate the RGB value of observation hole in each microelement area and the average value ratio of blue component and green component. By comparing the difference between the RGB value in the region and the standard value, and comparing the B / G ratio with the standard value set, the state of bell jar transmittance is identified.

The utility model relates to the technical field of flow regulation, in particular to an automatic flow regulation device of a bell jar type gas flow standard device, which comprises an automatic regulation device mounting total component, and a support plate is fixedly connected to the inner ring surface of the automatic regulation device mounting total component. According to the automatic flow adjusting device of the bell jar type gas flow standard device, through dislocation of a first circulation opening and a second circulation opening, the flow can be opened and closed, the flow can be adjusted, and therefore efficient automatic flow adjustment can be conducted; the clamping plate is fixedly connected with the surface of the side edge of the automatic adjusting device installation total component, the reset spring is inserted into the surface of the inner ring of the clamping plate in a limiting mode, and the automatic adjusting device installation total component can be installed in the bell jar type gas flow standard device in a clamping mode after the transmission rod is pushed by the reset spring.

The utility model belongs to the technical field of aerospace, and discloses a vacuum test device. The vacuum test device comprises a bell jar, a sealing element, a bottom plate, a first flange ring and a fastener, the bell jar comprises a bell jar body and an outer flange, the outer flange is arranged at an opening of the bell jar body in the circumferential direction of the bell jar body, the bell jar body is buckled on the bottom plate, the sealing element is clamped between the bottom plate and the outer flange, and the first flange ring is connected with the fastener. The bell jar body is sleeved with the first flange ring, at least part of the first flange ring abuts against the outer flange, the fastener is arranged on the first flange ring in a penetrating mode and is in threaded connection with the bottom plate, and when the airtight cavity is vacuumized through the through hole, the first flange ring is in threaded connection with the bottom plate, so that the airtight cavity is formed by the bell jar body and the bottom plate in a surrounding mode, and a through hole is formed in the bottom plate and communicated with the airtight cavity. The air leakage rate of the closed cavity is reduced, and the vacuumizing efficiency is improved; moreover, when the airtight cavity is inflated through the through hole after the test is finished, the risk that the bell jar is jacked up due to too high inflation speed is effectively prevented, and the safety of the device is enhanced.

The utility model provides an annular waste heat recovery system of a bell jar type annealing furnace. Comprising an annealing furnace, a first heat exchange tile block and a second heat exchange tile block are clamped to the bottom of the inner wall of the annealing furnace through clamping rods, and rectangular heat exchange grooves are formed in outer side shells of the first heat exchange tile block and the second heat exchange tile block at equal angles; mounting grooves matched with the clamping rods are formed in the inner wall of the first heat exchange tile block and the inner wall of the second heat exchange tile block at equal angles, hole grooves are formed in the middle sections of the mounting grooves, and the hole grooves located in the first heat exchange tile block and the second heat exchange tile block penetrate through the first heat exchange tile block and the second heat exchange tile block correspondingly; and heat exchange holes are formed in the top ends of the mounting grooves. The annular waste heat recovery system of the bell jar type annealing furnace solves the problems that an existing bell jar type annealing furnace is single in structure and high in energy consumption, waste heat of the annealing furnace is difficult to recycle, and energy is wasted.

The application provides a powder metallurgy brake pad friction block sintering method, which comprises the following steps: providing a sintering tool and a pressurized bell jar furnace for matching the sintering tool; placing the friction block in the interior of the sintering tool; supplying heat source to the interior of the sintering tool through a heat supply pipe; after sintering and forming, cooling, taking out the finished product, and obtaining the sintered friction block; wherein the sintering tool comprises an upper die plate with a second heating cavity in the interior and a lower die plate with a third heating cavity in the interior; the sintering tool capable of integrally forming the friction block is arranged, the shape of the product after sintering is uniform, the assembly size is stable, and the product does not need to be machined again, so that the production efficiency is improved, and the stability of the product quality is ensured; the second heating cavity and the third heating cavity wrapped outside the die cavity are arranged, the first heating cavity is matched, the interior and the exterior are heated together, the heating effect is further improved, and the function of saving energy is achieved.

The utility model belongs to the technical field of anode lifting appliances, and particularly relates to a double-pull anode lifting appliance device, which comprises a bearing beam and a main lifting lug, a dismounting structure is arranged below the bearing beam, the dismounting structure comprises a dismounting mechanism and an adjusting mechanism, the dismounting mechanism comprises an adjusting box, an adjusting plate, a pull rod, a wedge-shaped plate and a mounting block, the inner wall of the adjusting box is slidably connected with two ends of an adjusting plate, and one side of the adjusting plate is connected with one end of a pull rod. According to the double-pull anode lifting appliance device, an anode bar can be quickly and conveniently disassembled and assembled, the stability of the anode bar after being fixedly installed can be effectively improved, an installation block and a bell jar can be quickly and conveniently disassembled and assembled, then the double-pull anode lifting appliance device can be better used, and the problems that the bell jar, the installation block and the anode bar cannot be quickly and conveniently disassembled and assembled, and the service life of the bell jar, the installation block and the anode bar is shortened are solved. And the problem that the anode bar cannot be stably fixed through the stainless steel round steel pipe is solved, and the working efficiency of the lifting appliance device is improved.

The invention discloses a welding seam reinforcing process for a bell jar standing cavity and application of the welding seam reinforcing process, and the welding seam reinforcing process comprises the steps of pretreating the surface of a welding seam and reinforcing the welding seam by adopting a non-metal composite material. After the battery production equipment is reinforced through the weld joint reinforcing technology, the corrosion resistance, the pressure resistance, the fatigue resistance and the mechanical performance of the equipment can be remarkably improved, preventative reinforcement can be conducted on the production equipment, and service life prolonging reinforcement can be conducted on in-service production equipment.

The utility model discloses an energy -saving polycrystal silicon reduction furnace bell jar, including reduction furnace bell jar, it is jacketed structure, is equipped with inner heat -insulating bushing in the inner wall of reduction furnace bell jar, and the inner heat -insulating bushing will be separated to form the preheating chamber to the inside of reduction furnace bell jar and the inner wall side close to it, and the bottom of inner heat -insulating bushing is equipped with material inlet, and the top is equipped with material outlet, and the material is sent into the inner heat -insulating bushing and is preheated and is sprayed into the reduction furnace bell jar from the material outlet of top prearranged position.

A positioning device of an epitaxial furnace comprises a first positioning piece, a second positioning piece and a third positioning piece, the first positioning piece is fixed to the top surface of a flange through a connecting structure, and a mounting hole is formed in the positioning piece; the second positioning piece is located in the mounting hole, and the second positioning piece is used for fixing the distance between the top surface of the downstream end of the quartz cylinder and the top surface of the flange, so that the quartz cylinder is positioned at the corresponding position. The distance between the top surface of the downstream end of the quartz cylinder and the top surface of the downstream end of the quartz bell jar is fixed by arranging the first positioning piece fixed on the top surface of the flange and positioning one end in the mounting hole of the first positioning piece and positioning the other end on the top surface of the downstream end of the quartz cylinder; therefore, the position of the quartz cylinder can be quickly fixed at the corresponding position, the position of the quartz cylinder does not need to be adjusted for multiple times, the positioning accuracy of the position of the quartz cylinder is improved, and the positioning accuracy of the position of the reaction chamber and the production process efficiency are further improved.

The utility model discloses a tar collecting structure of a gas diffusion bell jar, which relates to the technical field of gas furnace equipment transformation and comprises a diffusion pipe and a rainproof cap, the rainproof cap is positioned above a diffusion port of the diffusion pipe, and a conical cap for collecting tar is arranged in the rainproof cap. The edge of a bottom opening of the conical cap is fixedly connected with the periphery of the inner wall of the rainproof cap, a circle of the bottom opening of the rainproof cap is fixedly connected with an annular groove, a plurality of through holes are formed in the side, close to the bleeder, of the annular groove, and the through holes fixedly communicate with chutes. According to the coal gas tar collecting device, coal gas rises into the rain-proof cap through the diffusing opening and then is blocked by the conical cap, tar is condensed, the tar slides down into the annular groove under the action of gravity and then flows back into the diffusing pipe through the through holes and the chutes, and therefore the good coal gas tar collecting effect is achieved.

This invention relates to the field of mechanical automation assembly and coking equipment technology, specifically to a coal charging hole cover assembly device and method for use in sealed coke oven environments. It includes an annular rotary base and indexing turntable, a traveling pallet equipped with positioning columns and pneumatic self-centering claws, multiple workstations, and an industrial control computer. The device utilizes the indexing turntable to drive the clamped coal charging hole cover blank, which sequentially flows between workstations such as tamping and filling, welding, feeding and grinding, and bell jar testing. Its core is to achieve continuous flow of the workpiece based on a single reference point using the traveling pallet, and to utilize a positive pressure dustproof air curtain to blow away scattered refractory dust. This invention abandons the traditional multiple lifting method, overcomes the secondary clamping errors caused by realignment in harsh environments, ensures the cleanliness of the clamping surface, and improves the dimensional and positional accuracy of the workpiece throughout the assembly process.

The utility model discloses a bell jar uniform cup and a bell jar type glaze pouring device.The bell jar uniform cup comprises a cup body and a discharge port, the cup body is provided with a cup opening, the cup opening is used for allowing glaze slip to flow in, the discharge port is formed in the side wall of the cup body, and the discharge port is used for discharging the glaze slip. The discharge outlet is formed in the side wall of the cup body, so that the glaze slip outflow mode is changed, the glaze slip flows out of the discharge outlet of the cup body, floating objects are effectively blocked in the cup body, the glaze pouring quality is improved, the structure is simple, and practicability is high.

The utility model relates to a quick dust falling structure for a calcining kiln, which comprises a bell jar cylinder, an electric gate valve arranged at the upper end of the bell jar cylinder, array blowpipes uniformly arranged in the bell jar cylinder, mist spraying devices uniformly arranged in the bell jar cylinder, a smoke discharging cylinder arranged on one side of the bell jar cylinder, an electromagnetic chimney valve arranged on the smoke discharging cylinder, and a dust falling device arranged on the electromagnetic chimney valve. A dragon suction cylinder is arranged above the bell jar cylinder, a spiral guide vane is arranged in the dragon suction cylinder, a hygrometer and an anemometer are further arranged in the bell jar cylinder, and a dust collection box is arranged on the outer side of the bell jar cylinder. The array blowpipes are evenly distributed in the bell jar cylinder, it can be guaranteed that vortex-shaped airflow suction force can be formed during dust collection of the dragon suction cylinder to conduct dust collection operation, the dust collection range is large, the dust collection efficiency is high, the dragon suction cylinder or the smoke exhaust cylinder can be selected to conduct dust collection mode switching according to actual use scenes, and the dust collection effect is good. And the dust collecting box is used for uniformly collecting the sucked dust, so that the dust is prevented from flying and escaping, and the environmental protection property is better.

The application discloses a kind of ultrafine grain LED brass preparation methods, comprising the following steps: S1: smelting cast H65 brass ingot, ingot is used semi-continuous casting process;S2: head and tail of brass ingot is removed;S3: after heating and heat preservation to brass ingot, hot rolling is carried out;S4: after hot rolling, rough rolling is carried out to the roll of milling face;S5: after annealing to the roll of annealing, it is washed and cut edge and is carried out medium rolling;S7: after remaining bottom material is carried out air cushion furnace annealing;S8: after the roll of air cushion furnace annealing is carried out, it is cleaned and washed, and after shearing, ultrafine grain brass strip can be obtained.The semi-continuous casting process is used, and the roll is annealed very uniformly by cooperating bell jar furnace and air cushion furnace, so that the grain size of LED brass product is very uniform, and 90% of the grain size is controlled in 1-2um.

This utility model discloses a calibration and bell-jar verification system for a wet gas flow meter based on a standard device combination, relating to the field of gas flow measurement technology. The bell-jar type gas flow standard device and the gas-liquid dual-purpose standard metal measuring vessel are sequentially connected by a first solenoid valve, a pressure sensor, a first temperature sensor, a wet gas flow meter, a flow regulating valve, and a fourth solenoid valve. The wet gas flow meter has a branch circuit. The inlet end of the gas-liquid dual-purpose standard metal measuring vessel is connected to a water tank via a pipeline. The outlet end of the gas-liquid dual-purpose standard metal measuring vessel is equipped with a drain valve and a three-way valve. The three-way valve is connected to a narrow-mouth bottle and the water tank via flexible conduits. An electronic balance is installed at the bottom of the narrow-mouth bottle. This utility model enables full-range calibration of the wet gas flow meter, calibration of the 0.2-grade standard wet gas flow meter, and verification and inspection of the bell-jar type gas flow standard device without disassembling the pipeline.

The invention discloses a shaft furnace magnesium reduction composite tank body structure which comprises a composite tank body (5) and is characterized in that a bell jar valve (6) and a crystallizer (7) are arranged on the lower portion in the composite tank body (5), the composite tank body (5) comprises an outer tank (51), an inner tank (52), a distribution rib plate (53), a closing-in section (54), a supporting plate (55), a slag discharging barrel (56) and a flange (57), the inner tank (52) is connected with the outer tank (51) through the distribution rib plate (53), holes are evenly distributed in the inner tank (52) to guide magnesium steam, and the flange (57) is connected with the outer tank (51) through the supporting plate (55). A supporting plate (55) is arranged at the bottom of the outer tank (51), and the outer tank (51) is connected with a deslagging cylinder (56) and a flange (57) below the supporting plate (55); the inner wall of the bottom of the outer tank (51) is connected with an inclined closing section (54), and the bottom of the closing section (54) is connected with a slag discharging cylinder (56). The structure is easy to manufacture, stable in use performance, long in service life, low in implementation cost, rapid and uniform in heat transfer, small in radiation heat loss and low in operation and maintenance cost, and the product quality and productivity are guaranteed.

The invention discloses an automatic mold opening and closing system of a special-shaped prefabricated part and a vertical construction method. The automatic mold opening and closing system comprises the following steps that S1, a bottom mold, a gold bell jar jig frame and a first inner mold are installed; s2, a steel bar binding frame is installed, and a gold bell jar section steel bar cage is bound; s3, the steel bar binding frame is dismantled, and the first outer mold is closed; s4, concrete is poured into the gold bell jar section; s5, after the gold bell jar section is formed, a height connecting frame is hoisted; s6, a second inner mold is hoisted and fixed, a steel bar binding frame is installed on the elevated frame, then middle section steel bars are bound, and a middle section steel bar cage is formed; s7, pier cap section steel bars and lifting point steel bars are constructed, and a second outer mold is installed; s8, pier body and pier cap section concrete is poured; s9, after the prefabricated part is formed, the second outer mold, the height connecting frame and the inner mold are dismantled; and S10, the formed prefabricated part is vertically hoisted and moved to the pier base, and the prefabricated part is connected with the pier base. According to the method, segmented construction of the gold bell jar section, the middle section and the pier cap section is optimized, and the production efficiency and quality of pier body prefabrication are improved.

The invention provides a high-performance copper-based composite material and a preparation method thereof, and belongs to the field of material preparation. According to the invention, dendritic electrolytic copper powder is used as a matrix, graded SiCp is used as a reinforcing phase, secondary reduced foam iron powder is used as a friction adjusting component, graphite is used as a lubricating component, matrix / component collaborative design of morphology synergy, performance matching, process adaptation and function complementation is adopted, and double-motion mixing, bell jar type pressure sintering and cryogenic circulation grading aging treatment processes are combined, so that the wear-resistant and wear-resistant corrosion-resistant copper alloy material is obtained, and the service life of the wear-resistant and wear-resistant corrosion-resistant corrosion-resistant copper alloy material is prolonged. The technical problems that an existing brake material is high in raw material cost, poor in friction stability, large in brake noise and short in service life are effectively solved. The density of the prepared composite material is larger than or equal to 99.5%, the bending strength is larger than or equal to 430 MPa, the conductivity is larger than or equal to 48.2% IACS, the friction coefficient is stabilized to be 0.33-0.37, the abrasion loss is smaller than or equal to 0.25 cm / MJ, the braking noise is reduced by 15-20 dB, the service life is 30-400 thousand kilometers, and the composite material is suitable for multi-scene braking systems such as high-speed trains, medium-speed trains, subways, heavy machinery and freight trains with the speed being 350 km / h or above.

The utility model relates to the technical field of annealing furnaces, in particular to a comprehensive annealing furnace for an aluminum-based composite material, which comprises a heat preservation box body, a feeding hole is formed in the front end of the tank body, and the tank body is arranged in the heat preservation box body; the sealing door is arranged at the feeding hole to open and close the feeding hole; a first ventilation opening and a second ventilation opening are formed in the two ends of the cover body respectively. According to the utility model, a traditional bell jar type annealing furnace and a traditional box type annealing furnace are mutually combined, the tank body and the cover body of the bell jar type annealing furnace are adjusted from a vertical state to a horizontal state and are put into the box type annealing furnace, namely the heat preservation box body, and the circulating fan is arranged at the rear end of the box type annealing furnace to promote air flow circulation in the tank body; the feeding mode adopts a platform trolley transverse feeding mode like a box-type annealing furnace, a coil turning device is not needed any more, and loading and unloading are convenient; the circulating fan blows air behind the cover body forwards, airflow circulation is achieved, air circulation is good, and the temperature difference in the furnace is small.