1630results about "Charge supports" patented technology

The invention provides an anti-corrosion ceramic sagger and a preparation method thereof.The anti-corrosion ceramic sagger comprises an aggregate layer and a matrix layer, and the aggregate layer is prepared from, by mass, 30-50 parts of yttrium-stabilized zirconia, 20-30 parts of silicon carbide and 15-25 parts of magnesium aluminate spinel; the matrix layer is prepared from the following raw materials in parts by mass: 40 to 50 parts of mullite micro powder, 30 to 40 parts of cordierite micro powder and 10 to 20 parts of binding agent. According to the anti-corrosion ceramic sagger and the preparation method thereof, by optimizing the raw material ratio and the preparation process, the corrosion depth is smaller than or equal to 0.19 mm after the sagger is soaked in the molten salt environment at 900 DEG C for 72 h, the service life is prolonged by 6-8 times compared with that of a traditional corundum sagger, and the anti-corrosion ceramic sagger has wide application prospects.

The inventive concept provides an apparatus for treating a substrate by using a supercritical fluid. In an embodiment, the apparatus may include a process chamber that provides a treatment space, and including a chamber heater that increases a temperature of an interior of the treatment space, a substrate support provided in the treatment space and that supports the substrate, and a substrate heating member that heats a lower surface of the substrate while contacting the lower surface of the substrate.

The graphitized product secondary roasting charging and discharging process comprises the following steps that S1, a high-purity graphite support or a multi-layer support structure is arranged in a hearth of a graphite furnace, and a graphite product is hoisted to the graphite support or the multi-layer support through a special clamp for charging; s2, sectional heating is adopted, the heating process is divided into a low-temperature section, a medium-temperature section and a high-temperature section, and the heating rate of each stage is controlled; s3, after roasting is completed, natural cooling is conducted, and after the temperature is reduced to the preset temperature, products are discharged out of the furnace; s4, the graphite product is clamped through a special clamp to be lifted out of the furnace, and in the step S1, the graphite product is vertically arranged on the graphite support and is arranged on the multi-layer support structure in a layered mode; when the secondary roasting charging and discharging process for the graphitized product is used, the stability and roasting uniformity of the product in a hearth can be guaranteed, segmented heating roasting is carried out in the furnace, graphite product cracking or performance reduction caused by temperature fluctuation can be avoided, the product quality is guaranteed, and the secondary roasting charging and discharging process for the graphitized product is suitable for application and popularization.

The utility model relates to the technical field of graphitization devices, and discloses a continuous graphitization furnace for graphite felt production, which comprises a graphitization furnace body, a conveying mechanism and a heating mechanism are arranged on the surface of the graphitization furnace body, and the heating mechanism is positioned on the inner side of the conveying mechanism; the conveying mechanism comprises a conveying assembly and an overturning assembly; the overturning assembly is located on the surface of the conveying assembly. The conveying assembly comprises a heating box and a furnace cover, and the left side face of the graphitization furnace body fixedly penetrates through the right side face of the heating box and extends into the heating box. The conveying mechanism drives the sliding block and the furnace cover to move towards the right side, the device is fully opened, graphite felt materials can be conveniently taken and placed, in the overturning assembly, the graphite felt materials are fixed to a supporting plate through a pressing plate, meanwhile, the supporting plate is driven to overturn through a rotating rod, and in the graphite felt material heating process, the graphite felt materials are heated through the rotating rod. And the graphite felt material placed on the supporting plate rotates along with the supporting plate, so that the graphite felt material is heated more uniformly.

The invention is suitable for the technical field of powder metallurgy and advanced ceramic material sintering equipment, and provides an integrated flash sintering device for vacuum and a sintering method. The device comprises a power supply module, a high vacuum module, a first servo hydraulic machine, a second servo hydraulic machine, a third servo hydraulic machine, a mold rotation switching module, a vacuum feeding module, a green body pressing module, a demolding and mold cleaning module and a mold transfer module. According to the invention, an integrated gear tray design is adopted to integrate the functions of die installation, graphite paper treatment and green body pressing, and online synchronous cleaning of an electrode and a die is realized through die fixation and a cleaning brush arranged in a cleaning drum; therefore, full-automatic, high-efficiency and high-stability continuous production of flash sintering from powder filling to finished product collection is realized.

A correction device for a sintering sagger cover belongs to the technical field of sintering kiln automation supporting equipment. It includes a frame, a conveying mechanism arranged in the middle of the frame, a lifting mechanism arranged below the conveying mechanism, and a stopper mechanism arranged below the conveying mechanism and installed on the lifting mechanism. A vibration correction mechanism is installed at the upper part of the frame and above the conveying mechanism, which includes a mounting plate, a vibration bracket arranged below the mounting plate and capable of sliding up and down, and a correction bracket arranged below the mounting plate. A correction bracket yielding opening is provided in the middle of the vibration bracket, and the correction bracket is arranged at a position corresponding to the correction bracket yielding opening. A pneumatic hammer is provided on the vibration bracket, and a vibration head is formed at the lower end of the pneumatic hammer. A pair of correction cylinders are arranged above the correction bracket facing each other, and the correction cylinders are respectively used to drive a correction claw extending downward through the correction bracket to move toward each other. Advantages: avoid unnecessary losses in the subsequent cover removal process and improve sintering efficiency.

The present invention discloses a lithium iron phosphate kiln external conveying production line, which relates to the field of conveying technology, including a plurality of saggers, a conveying platform, and a material unloading box, a leveling device, and a splitting device sequentially arranged along the conveying direction. The conveying platform includes a plurality of conveying rollers; the leveling device includes: a first lifting mechanism is connected with a crossbeam, a reciprocating mechanism is mounted on the top of the first lifting mechanism through a support plate, including a reciprocating assembly and four U-shaped plates, the crossbeam is located between the four U-shaped plates, and the top array of the clamping mechanism has two lifting rods, the lifting rod includes a crossbeam and vertical plates arranged at both ends thereof, the crossbeam is provided with a through groove, the crossbeam horizontally slides in the through groove, and slides up and down in the corresponding U-shaped plate, the inner wall of the vertical plate is close to the outer wall of the corresponding U-shaped plate, and the reciprocating assembly is used to make the four U-shaped plates reciprocate along the long axis direction of the crossbeam; the splitting device includes a third lifting mechanism and a splitting tool arranged at the bottom thereof. This scheme improves the degree of automation and reduces the degree of dependence on manual labor.

The invention discloses an annular furnace heat-resistant supporting forged chassis and an additive manufacturing process and a fixing device thereof, and belongs to the technical field of plating of metal materials, and the annular furnace heat-resistant supporting forged chassis comprises the steps that heat-resistant alloy steel base metal with specific components is prepared; carrying out laser texturing and nickel-based alloy bottom layer pretreatment on the surface of the steel plate; performing laser cladding on high-silicon high-temperature alloy powder containing niobium and rare earth elements to form a functional cladding layer, and performing gradient cladding on the edge of the atmosphere guide hole; and finally, carrying out heat treatment and assembling with a fan-shaped refractory brick fixing device. A composite oxide film and a multi-scale strengthening system are constructed, hydrogen resistance and brittleness resistance are effectively achieved, interface thermal stress is relieved, cracking and stripping of a cladding layer are avoided, a fixing device adapts to thermal expansion, the atmosphere is dredged, and the annealing uniformity of a steel coil is improved; the problems of creep deformation, hydrogen embrittlement, cladding layer stripping and thermal stress cracking of a traditional supporting component under the conditions of high temperature, heavy load and nitrogen and hydrogen atmosphere are solved.

The invention provides a setter plate for sintering a powder metallurgy product and a preparation method of the setter plate, and belongs to the technical field of setter plates. The refractory material is prepared from the following raw materials in parts by weight: 20-40 parts of fused zirconium mullite, 20-40 parts of modified sintered corundum, 30-50 parts of alumina micro powder, 0.5-1 part of yttrium oxide / alumina-carbon nanotube hollow microsphere powder, 0.5-1 part of zinc oxide micro powder and 5-10 parts of a binder. The setter plate for sintering the powder metallurgy product has the advantages of good heat insulation, high temperature resistance, thermal shock resistance and chemical stability, good mechanical properties, good hardness and good wear resistance, the problems of cracking, deformation and the like caused by thermal shock are reduced, the service life of the setter plate is prolonged, and the setter plate has a wide application prospect.

According to certain aspects, a wrapped green body carrier for a green body includes side supports and moveable supports mounted to the side supports. Each of the moveable supports includes an inner end configured to move relative to the side supports. The green body carrier includes a flexible sheet attached to and suspended from each inner end of the moveable supports. The inner ends of the moveable supports are configured to move inward to wrap the flexible sheet around at least a portion of the green body (e.g., more than 180°). Accordingly, the wrapped green body carrier supports a large circumference of the green body and accommodates large deviations in shape and / or diameter. In certain embodiments, the flexible sheet includes radiation coupling material or radiation blocking material so that wrapping the flexible sheet around the green body improves uniformity during microwave drying.

The invention discloses low-temperature sintering equipment for a ceramic material, and relates to the technical field of ceramic sintering. The equipment comprises a heating part, a graphite crucible and a heating spiral pipe connected to alternating current are used, low-melting-point ceramic powder is heated and melted, an integrated temperature management module is driven by a cooling pump through magnetic force, the low-temperature working state of the heating spiral pipe is kept, and the cooling pump utilizes a permanent magnet rotating disc and a magnetic plate; cooling liquid circulation without mechanical contact, efficient separation and cooling of high-temperature cooling liquid are achieved, heat absorbed by the heat absorption pieces is effectively dissipated through the cooling fins and the cooling fan, the system further comprises a switching assembly, an operator is allowed to flexibly switch between an internal cooling system and an external cold water source, and in addition, the system is convenient to operate. The equipment adopts the structural design of the separation barrel and the external sleeve barrel, heat loss is reduced through vacuum, and the heating efficiency is improved.

The internal serial box type graphitization furnace is characterized in that the internal serial box type graphitization furnace is composed of a box body made of graphite, partition plates, stand columns and transverse columns, the periphery of the box body is formed by splicing a plurality of first rectangular plates, and the left and right adjacent first rectangular plates are connected through the stand columns provided with insertion grooves; a bottom plate of the box body is formed by lap joint of a plurality of lap joint plates, the lap joint plates provided with the stand columns extend towards the left side and the right side and are provided with through holes matched with the stand columns in position and diameter, the cover plate is formed by splicing a plurality of second rectangular plates, through holes are formed in the stand columns, the partition plates are vertically inserted into the box body, and the partition plates are formed by vertically splicing a plurality of layers. A plurality of through holes are evenly formed in the splicing positions, and the transverse columns penetrate through the through holes in the partition plates and are horizontally arranged in the box body. The graphitization furnace is high in yield, long in service life and low in construction cost; heating is more comprehensive, and the product quality can be improved. And the whole box body is perfectly connected in series, so that the arc striking overheating condition of the current in the power transmission process is avoided, and the production safety is enhanced.

The utility model provides a bearing device for battery piece processing and a laser-induced sintering processing device.The bearing device comprises a rotary table module, the rotary table module comprises a rotary driving mechanism, a supporting frame and a plurality of bearing tables, the bearing device further comprises a sweeping module, and the sweeping module comprises a long-strip-shaped brush; the rotary table module is at least provided with a machining station, a feeding station and a discharging station, the feeding station and the discharging station are adjacently arranged, and the brush is arranged between the feeding station and the discharging station and extends in the center direction of the supporting frame. The rotary driving mechanism drives the multiple bearing tables to sequentially and circularly pass through the feeding station, the machining station and the discharging station, and in the process that the bearing tables move to the feeding station from the discharging station, the brushes clean the table tops of the bearing tables. The brush is arranged between the feeding station and the discharging station, so that the brush cleans the bearing table in the process that the battery pieces on the bearing table are taken away and return to the feeding station without load, the working efficiency is improved, and the cleaning effect is better.

The invention discloses a graphite box for neodymium iron boron magnetic steel sintering and a method for preventing a magnetic steel material from being bent, the graphite box for neodymium iron boron magnetic steel sintering comprises a box body, the top of the box body is open, and a plurality of long partition plates are evenly and detachably arranged in the box body in the width direction of the box body at intervals so as to divide the box body into a plurality of first material cavities; a first air hole is formed in the long partition plate; and the cover plate is movably inserted into the open end of the box body. Compared with the prior art, the novel graphite box has the beneficial effects that in order to solve the problem of position deviation of magnetic steel caused by abnormal movement of the graphite box in the transfer process, the long partition plates are adopted in the novel graphite box to form the appropriate stacking material cavity, convenience and high efficiency in the stacking process are improved, independence and the exhaust effect of the stacking material cavity are guaranteed, and the magnetic steel stacking efficiency is improved. The problem of adhesion of the sintered magnetic steel is fundamentally solved, and meanwhile, the risk of material bending can be effectively reduced.

The invention discloses a secondary roasting device and roasting method for graphite electrode production, and belongs to the technical field of graphite electrode roasting devices.The secondary roasting device for graphite electrode production comprises a furnace body and two sliding rails arranged on one side of the furnace body, and a bottom plate is assembled on the sliding rails in a sliding mode; the bearing plate can be pulled out of the furnace body through cooperation of the hook plate and the connecting groove, when a new bearing plate falls onto the inner barrier strip and the outer barrier strip, the reversing assembly can release the locking relation with the inner barrier strip, then the pulling force direction of the auxiliary steel cable on the guide block is changed, the auxiliary steel cable can pull the bottom plate to gradually get close to the furnace body, and therefore the furnace body is protected. And the bearing plate is pushed into the furnace body through the ejector rod, manual intervention is little in the whole process, so that the process of entering and exiting the furnace is safer, the whole operation is completed only through cooperation of the main steel cable and the auxiliary steel cable, and the device is simple in overall structure and convenient to maintain.

The utility model relates to the technical field of aluminum nitride sintering frames, in particular to a sintering frame capable of being heated uniformly. The sintering frame capable of achieving uniform heating aims at solving the technical problems that in the prior art, heating is prone to being uneven, and the number of nitriding furnaces for single-time sintering is small. According to the technical scheme, the sintering frame capable of being heated uniformly comprises a bottom plate; the device further comprises a lifting control assembly, a side plate, a transmission shaft, a conveying belt, a guide sliding assembly, an adjustable supporting assembly, a rotary hanging frame assembly, a locking plate, a locking bolt and a sliding wheel. According to the aluminum nitride sintering furnace, a rotatable runway type structure is adopted as a whole, and the multiple sets of hanging frames distributed at equal intervals are arranged on the outer side of the conveying device, so that more aluminum nitride can be sintered at a time, the utilization rate of the space in the sintering furnace is greatly improved, and the sintering efficiency of the aluminum nitride is improved; the distance is adjusted according to the specification of aluminum nitride, the device is suitable for aluminum nitride of different specifications, and it is ensured that aluminum nitride can be evenly heated.

The present disclosure provides a vertical furnace. The vertical furnace comprises a furnace tube, a storage device, a loading device, a wafer boat, a first carrying device, a second carrying device and a gas system. A furnace chamber used for heating a wafer is arranged in the furnace tube. The storage device is provided with a storage chamber and a carrying table located in the storage chamber, and the carrying table is used for carrying a wafer box. The loading device is used for loading a wafer box for storing a wafer to be heated. The wafer boat is used for moving a wafer to be heated between the furnace chamber and the loading device. The first carrying device is used for moving the wafer box between the carrying table and the loading device. And the second carrying device is used for moving the to-be-heated wafer between the loading device and the wafer boat. And the gas system comprises a gas inlet port and a gas outlet port which are arranged on the carrying table, and is used for introducing protective gas into the wafer box through the gas inlet port and discharging the gas from the wafer box through the gas outlet port so as to inject the protective gas of which the pressure is greater than the environmental pressure into the wafer box. Consequently, pollutants in the environment can be prevented from making contact with the wafer, and the interior of the wafer box is clean.

The invention relates to the field of ceramic production and processing devices, in particular to a bracket device for a silicon carbide product sintering furnace, which comprises a mounting plate, a plurality of bracket pipes are rotatably arranged at the front part of the mounting plate, the front parts of the bracket pipes are connected with a sealing plate through a dismounting mechanism, and the bracket device further comprises a heat conduction mechanism for uniformly heating a tubular silicon carbide blank. According to the invention, a plurality of bracket pipes are adopted to support a tubular silicon carbide blank, and the bracket pipes cannot shield the outer side surface of the tubular silicon carbide blank, so that heat transfer in the sintering process is facilitated, and the sintering uniformity is improved; the front side of the bracket pipe is supported by the sealing plate, and the bracket pipe can be changed to be in contact with a tubular silicon carbide blank before sintering each time, so that the tubular silicon carbide product is prevented from always abrading one position of the bracket pipe, and the service life of the bracket pipe is prolonged.

The invention discloses a ceramic firing system and a using method thereof, the ceramic firing system comprises a ceramic firing furnace and a smoke exhaust device arranged on the top side of the ceramic firing furnace, and a plurality of layered ceramic firing placing racks are fixedly mounted on the upper portion of an inner cavity of the ceramic firing furnace. In the firing process, the temperature sensors are arranged, and the controller can control starting and stopping of the air heater and the resistance heater and the forward and reverse rotation working stroke of the driving motor according to temperature information sensed by the temperature sensors at all the positions; therefore, heat heated by the hot-air blower and the resistance heater can be uniformly transmitted to each position in real time, and the problem that heat in the firing process can only be transmitted in a fixed radiation direction due to the fact that most heating elements in a traditional ceramic firing system adopt a fixed mounting mode is avoided. And the temperature distribution of the ceramic green body at different positions in the furnace is not uniform, so that the ceramic product encounters a plurality of quality problems during firing, and the furnace is suitable for popularization and application.

The invention relates to a vacuum high-temperature furnace. The vacuum high-temperature furnace comprises a supporting frame body, a furnace module, a molecular pump and a cooling water inlet pipe group, wherein the furnace module is mounted on the supporting frame body; the molecular pump is mounted on the supporting frame body and is communicated with the furnace module; the furnace module comprises a furnace body and a furnace door installed at an opening of the furnace body in an openable and closable mode, and the furnace door locking assembly comprises a plurality of lower wedge blocks installed on the side face of the second flange ring at intervals; the rotating mechanism comprises a connecting ring rotationally arranged on the furnace body in a sleeving manner, a bearing ring formed on the inner circle of the connecting ring, and a plurality of upper wedge blocks which are mounted on the inner surface of the bearing ring and are matched with the lower wedge blocks in a one-to-one correspondence manner; and the driving mechanisms are used for driving the rotating mechanism to rotate, so that the upper wedge block is in contact with or separated from the lower wedge block. And the heating and sealing effects of the vacuum high-temperature furnace are improved.

The invention provides a roasting device and method for prebaked anode carbon blocks, and relates to the technical field of roasting, the roasting device for the prebaked anode carbon blocks comprises a device base, a plurality of roasting chambers used for storing the prebaked anode carbon blocks are formed in the device base, a heat storage groove is formed between every two roasting chambers, and the heat storage grooves are used for storing the prebaked anode carbon blocks. A plurality of tubular combustors are installed on the upper side of the heat storage tank, combustion nozzles are arranged at the heating positions of the tubular combustors, and electric sliding rails are installed on the two sides of the device base. The electric sliding seat can be driven to move through the electric sliding rail, the driving lead screw can be driven by the driving motor to rotate to drive the sliding frame to move, so that the clamping plate can move to any position, the height of the placement frame can be adjusted in cooperation with the hydraulic rod, and automatic storage and taking operation of the anode carbon blocks is achieved; and compared with existing manual storage, the arrangement speed of the anode carbon blocks is better, and the overall roasting efficiency is also improved.

The utility model relates to the technical field of aluminizing, and provides a gas phase aluminizing tool for an engine turbine blade, which comprises a loading box, and the loading box comprises a chassis for loading aluminizing raw materials; the bottom net is placed at the top of the chassis; the outer box is used for loading aluminizing raw materials and is of an annular structure with the upper end and the lower end opened, meshes are formed in the inner side of the outer box, and the outer box is placed on the outer edge of the bottom net; the inner box is of an annular structure with the upper end and the lower end opened, meshes are formed in the inner side and the outer side of the inner box, the inner box is placed in the center of the bottom net, and a placing area used for placing blades is formed between the inner box and the outer box. The base plate, the outer box and the inner box are all used for containing aluminizing raw materials, the blade is placed in the containing area between the outer box and the inner box, so that the aluminizing raw materials are arranged on the lower portion and the side face of the blade, the follow-up aluminum atmosphere can make contact with all the surfaces of the blade conveniently, and the aluminizing thickness and quality consistency of all the surfaces of the blade are improved.

The invention provides a preparation method of a boron nitride setter plate, and belongs to the technical field of boron nitride setter plates. The preparation method comprises the steps of material mixing, cold isostatic pressing forming and vacuum sintering. The material mixing step comprises the following steps: putting hexagonal boron nitride powder with the particle size of 100-200nm, hexagonal boron nitride powder with the particle size of 1.0-3.0 mu m, hexagonal boron nitride powder with the particle size of 4.0-10.0 mu m, ammonium bicarbonate, phenolic resin and sodium tripolyphosphate into a ball-milling device, adding absolute ethyl alcohol for ball-milling treatment, then adding a secondary compound for continuous ball-milling for 23-28min, and after ball-milling is finished, cooling to room temperature to obtain the boron nitride composite material with the particle size of 100-200nm, the particle size of 1.0-3.0 mu m, the particle size of 4.0-10.0 mu m and the particle size of 1.0-3.0 mu m and the particle size of 4.0-10.0 mu m. Drying at 87-92 DEG C to obtain dry powder; the boron nitride setter plate prepared by adopting the method disclosed by the invention is high in mechanical strength and strong in toughness, and can still keep relatively high mechanical strength after repeated cold and heat cycles.

The utility model provides a roll shaft type V-shaped gas heating furnace, and belongs to the technical field of gas heating furnaces. The roller shaft type V-shaped gas heating furnace comprises a furnace body, a transmission roller, a supporting beam, a gas pipe, a first supporting base, an air pipe, a waste gas pipe, a first radiant tube, a first air valve, a first combustor, a second radiant tube, a second air valve and a second combustor. The two first radiant tubes are arranged above to heat workpieces placed on the multiple transmission rollers, and the second radiant tubes are arranged below to heat the workpieces placed on the multiple transmission rollers, so that all-directional heating of the workpieces is achieved, the workpieces reach the preset temperature within the shortest time, and the heating efficiency of the workpieces is improved. And the working efficiency of the product is improved. When the thickness of the workpiece is large, the workpiece is heated from the upper direction and the lower direction through the first radiant tube and the second radiant tube, so that the upper portion and the lower portion of the workpiece are prevented from being heated unevenly, the heat treatment effect on the workpiece is improved, and the machining quality of products is improved.

The utility model relates to a nanometer oxide calcining structure, which is characterized in that a calcining tube placing frame body is positioned in a calcining furnace and comprises a vertical column fixed in the calcining furnace, a calcining tube placing platform is coaxially arranged on the vertical column, and a plurality of calcining tube bodies positioned on the periphery of the vertical column are arranged on the calcining tube placing platform; a gap is formed between every two adjacent calcining pipe bodies; a high-temperature air duct is arranged inside the vertical column, and an air outlet for blowing high-temperature gas to the gap is formed outside the vertical column; and a combustion gas outlet and a combustion gas inlet are formed in each calcining pipe body. When the calcining tube is used, nano oxides needing to be calcined are separately packaged in the calcining tube bodies to be calcined, and due to the fact that the nano oxides in each calcining tube body are few, a user does not need to worry about non-uniform heating of a part of the interior of the calcining tube body; by means of the calcining pipe placing frame body, the calcining furnace and the calcining pipe placing frame body enable high-temperature gas to flow in gaps between calcining pipe bodies, and uniform contact of heat is guaranteed in an internal and external heating mode.

A sagger feeding device for a sagger conveying production line. The sagger conveying production line comprises a feeding station; and the feeding station comprises a feeding station rack, a group of feeding station sagger conveying rollers, a feeding station sagger conveying roller driving mechanism, a feeding station sagger lifting / lowering mechanism, a pair of feeding station sagger clamping and placing mechanisms, and a feeding station sagger stopping and releasing mechanism. The sagger feeding device comprises a feeding station rack connecting support, a sagger feeding pipe fixing plate opening and closing driving mechanism, a sagger feeding mechanism, feeding starting and stopping valve plates, feeding starting and stopping valve plate actuating mechanisms, a valve plate connecting plate, a degassing screw cylinder mechanism, a sagger material compacting sleeve, and a material cylinder. When the feeding starting and stopping valve plate actuating mechanisms drive the feeding starting and stopping valve plates to release the sealing of a discharging port position at the lower portion of the degassing screw cylinder mechanism, the feeding starting and stopping valve plates release the sealing of a feeding starting and stopping valve plate matching cavity at the same time, and the sagger feeding mechanism is in a state of feeding a sagger which is under the sagger feeding mechanism. The present invention has the advantage that it is ensured that the plane of the material in the sagger basically tends to be consistent without great difference.

The utility model provides a titanium alloy heating furnace with uniform temperature distribution, which relates to the technical field of heating furnaces and comprises a furnace body, a fixed bin and an installation bin. An adjustment component is arranged on the furnace body, and the adjustment component comprises a motor. The motor is provided with a connecting shaft. A first fixing piece is fixedly connected to the connecting shaft. A first transmission rod is arranged on the first fixing piece. An electric telescopic rod is arranged on the first transmission rod. A first rotating shaft is rotatably connected to the first transmission rod. A second transmission rod is rotatably connected to the first rotating shaft. A first connecting piece is arranged on the second transmission rod. A second rotating shaft is rotatably connected to the first connecting piece. A second connecting piece is rotatably connected to the second rotating shaft. A third rotating shaft is arranged on the second connecting piece. A rubber paddle is arranged on the third rotating shaft. An air pump is fixedly connected to the installation bin. A ventilation pipe is arranged on the air pump. By arranging the adjustment component, the problem of local overheating or failure to reach the process temperature and the problem of frequent replacement of the closed door are avoided.

The invention relates to the technical field of high-temperature sintering, and particularly discloses a gradient composite kiln furniture based on spinel interface strengthening and a preparation method thereof. Wherein the kiln furniture sequentially comprises a mullite matrix layer, a silicon carbide enhancement layer and a zirconium oxide high-temperature-resistant layer from outside to inside, and the layers are chemically bonded through an in-situ generated MgAlO spinel interface layer. The preparation method comprises the following steps: carrying out layered tape casting on gradient slurry, carrying out isostatic pressing lamination molding, generating an MgSi transition phase at 1380-1420 DEG C through a stepped sintering process, and heating to 1600-1650 DEG C at a specific heating rate to form a continuous spinel interface. According to the kiln furniture, gradient component design cooperates with spinel interface strengthening, the problem of interface stripping caused by thermal expansion mutation of a traditional double-layer structure is solved, and the kiln furniture has excellent thermal shock stability and high-temperature strength retention rate. According to the preparation method, precise construction of the spinel interface is realized through staged reaction control.

The invention relates to the technical field of lithium batteries, in particular to a preparation method of a protective layer for a high-voltage ternary positive electrode material saggar, which comprises the following steps: uniformly mixing zirconium oxide, a lithium source compound, a binder and water according to the mass ratio of (2-3): (2-5): (1-5): (10-60) to prepare slurry; and uniformly coating the mixture on the bottom and the side wall of the sagger, pressing, drying and sintering to obtain the protective layer. According to the method, a compact composite protection layer from the pre-lithiation sagger surface layer to the lithium zirconate layer is successfully formed on the sagger surface, the sagger corrosion rate is reduced, composition segregation caused by the fact that zirconium / lithium components in the ternary material are adsorbed by the sagger is inhibited, the interface thermal stress concentration phenomenon is remarkably relieved, the cycle service life of the sagger is prolonged, and falling of the protection layer is avoided. In addition, the invention also discloses the protective layer prepared by the method and application thereof.