99results about How to "Improve sintering efficiency" patented technology

The invention belongs to the technical field of sintering pallet fat liquoring, and particularly relates to a sintering pallet fat liquoring machine and a control method and a control system thereof, the sintering pallet fat liquoring machine comprises a follow-up car which is used for running in parallel with a sintering pallet and can run in a reciprocating mode, and an oil injection module is installed on the follow-up car; the control method comprises the following steps: S1, the positioning rudder is standby; s2, wheels of the sintering pallet are captured; s3, the follow-up car follows; s4, the oil injection gun is operated; s5, oil injection; s6, the oil injection gun is separated; and S7, resetting the positioning rudder. According to the automatic grease adding device, automatic grease adding and lubrication of the wheels of the sintering pallet in time under the non-stop state are achieved, the sintering efficiency is improved, manpower is liberated, normal operation of the sintering pallet is guaranteed, and the automatic grease adding device has very important significance for solving the grease adding problem of an existing pallet.

The invention discloses a lithium battery material pressure sintering furnace and matched automatic feeding equipment and method.The lithium battery material pressure sintering furnace comprises a rack, a protective gas input mechanism fixedly installed on the rack, a vacuumizing mechanism and an electric cabinet and further comprises a preheating furnace, the preheating furnace is fixedly installed on the upper section of the rack, and a sealed feeding hopper is arranged at a feeding port of the preheating furnace; the sintering furnace is fixedly installed on the middle section of the rack, and a first material conveying channel is connected between the preheating furnace and the sintering furnace; a cooling furnace; the dispersion degree of the lithium battery raw materials during sintering can be improved so as to improve the preparation efficiency of the lithium battery raw materials, meanwhile, the sealed feeding hopper, the preheating furnace, the sintering furnace and the cooling furnace are in a separated state, continuous feeding, preheating, sintering and cooling of the lithium battery raw materials are achieved, shutdown is not needed, and the treatment efficiency of the lithium battery raw materials is greatly improved.

The invention belongs to the technical field of batteries, and particularly relates to a doped phosphate positive electrode material and a preparation method and application thereof. The doped phosphate positive electrode material comprises a phosphate active material and a doped metal element doped in a crystal structure of the phosphate active material; according to the doped phosphate positive electrode material, under the condition that the pressure is 100-500 MPa, the maximum deformation quantity of particles is smaller than 50%, and the reversible deformation quantity is smaller than 10%. By doping the metal elements in the crystal structure of the phosphate-based active material, the structure of the doped phosphate-based positive electrode material is optimized, the structural stability of the doped phosphate-based positive electrode material is improved, the compression modulus of the positive electrode material is improved, and meanwhile, the chemical components and the electronic structure of the surface of the positive electrode material can be changed; therefore, the doped phosphate positive electrode material has the characteristics of relatively high ionic conductivity, electron conductivity, gram volume, cycling stability and the like.

The invention discloses a ferrite magnetic tile sintering device and an operation method thereof, and relates to the technical field of ferrite magnetic tile sintering, the ferrite magnetic tile sintering device comprises a sintering furnace, a bearing plate used for supporting magnetic tiles and a conveying roller used for conveying the bearing plate, one end of the sintering furnace is provided with a feeding frame, and the ferrite magnetic tile sintering device further comprises a linkage clamping mechanism and a linkage rotating mechanism; the linkage clamping mechanism is arranged on the bearing plate, and the linkage clamping mechanism automatically clamps the magnetic tiles in the transverse moving process of the bearing plate through the conveying rollers. When the conveying rollers convey the bearing plate loaded with the magnetic tiles to enter the sintering furnace, the arranged rolling wheels and the inclined baffles generate the extrusion effect, the linkage pressing rods press the magnetic tiles placed on the supporting frame, automatic clamping and fixing are achieved, and then the rolling wheels roll along the fixed guide rails along with movement of the bearing plate; and the rolling rollers drive the supporting frame fixedly clamping the magnetic tiles to rotate, so that the magnetic tiles rotate automatically in the process of transversely moving and passing through the sintering furnace, and the heating is uniform.

The invention relates to the technical field of ceramic production, in particular to an automatic powder burying device for special ceramic production, which comprises a stamping table, an automatic feeding device and a powder burying table, the powder burying table is arranged on the stamping table, the automatic powder burying device further comprises a plurality of vertical knocking blocks, and the vertical knocking blocks are positioned on the powder burying table; the horizontal knocking blocks are located on the powder burying table, the multiple horizontal knocking blocks are divided into two groups and located on the two sides of the powder burying table respectively, and when the automatic powder burying device for special ceramic production is used, different from the prior art, gaps between powder particles are effectively compressed through knocking, and therefore the powder particles are prevented from being damaged; compared with the prior art, the powder burying table has the advantages that the compactness of the powder is improved, the higher compactness is favorable for reducing pores and defects in the product and improving the mechanical strength of the product, and meanwhile, the knocking effect can promote powder particles to be redistributed in the powder burying table, so that the local gap or accumulation phenomenon is avoided, and the uniform powder distribution is favorable for obtaining more consistent product quality.

The invention discloses an aluminum nitride high-temperature workpiece machining waste heat utilization device, and belongs to the technical field of aluminum nitride ceramic production. An aluminum nitride high-temperature workpiece machining waste heat utilization device comprises a waste heat utilization box body and a furnace body, the waste heat utilization box body is sequentially provided with a feeding cavity, a transfer cavity, a waste heat utilization cavity channel, a feeding and discharging cavity, a heat dissipation cavity and a discharging cavity from an aluminum nitride ceramic inlet end to an aluminum nitride ceramic discharging end, and the furnace body is arranged at the top of the waste heat utilization box body and provided with a heat dissipation cavity. The bottom of the furnace body communicates with the feeding and discharging cavity. Through the design of the multi-stage waste heat utilization cavities and the heat dissipation cavities, gradual preheating and gradual cooling are achieved, the sintering efficiency is improved, meanwhile, workpieces in the furnace body can be replaced without waiting for cooling when replaced, hot air backflow can be used after replacement, the workpieces can be further rapidly heated after preheating, and the sintering efficiency is improved. The waste heat utilization effect is achieved, and the working efficiency is further improved.

The invention belongs to the technical field of building materials, and particularly relates to high-strength porous ceramsite and a preparation method thereof. The high-strength porous ceramsite is prepared from the following raw materials in parts by weight: 30 to 50 parts of secondary aluminum ash, 20 to 40 parts of electroplating sludge, 5 to 10 parts of fly ash, 10 to 20 parts of bentonite, 5 to 10 parts of fluxing agent and 5 to 10 parts of binder, the preparation method comprises the following steps: (1) uniformly mixing secondary aluminum ash, electroplating sludge, fly ash and bentonite, spraying water, continuously stirring, adding a fluxing agent and a binder, uniformly stirring, and aging; and (2) feeding the aged material into a rotary kiln through a screw conveyor, drying, granulating, sintering, and finally cooling. The secondary aluminum ash and the electroplating sludge are taken as main components, and are combined with the fly ash, the bentonite and other auxiliaries, so that the porous ceramsite with relatively high strength is finally obtained.

The utility model discloses a sintering furnace for alloy material production, which comprises a sintering furnace main body shell, supporting legs and a sintering furnace door, an exhaust component is arranged on the sintering furnace door in a penetrating manner, the exhaust component comprises an air inlet pipe, and one end of the air inlet pipe close to a rotating component penetrates through the sintering furnace door and is fixedly communicated with a separation net. The rotating assembly is fixedly communicated with a gas inlet pipe, one end, far away from the rotating assembly, of the gas inlet pipe is fixedly communicated with a filter chamber, and the upper end of the filter chamber is fixedly communicated with an exhaust pipe. When the device is used, irritant gas generated in the alloy material production process enters the gas inlet pipe, and harmful substances in the gas are filtered out when the gas passes through the filter chamber; and the filtered gas is exhausted through the exhaust pipe, so that irritant harmful gas is prevented from hurting human bodies and polluting the environment.

The invention provides an intelligent aluminum oxide ceramic production system and sintering equipment, the intelligent aluminum oxide ceramic production system comprises manufacturing equipment, a sensor module and an intelligent terminal, the manufacturing equipment produces materials and is provided with the sensor module, and the sensor module and the intelligent terminal are networked and realize data transmission; and the intelligent terminal analyzes and optimizes the data obtained by the sensor module and feeds back the optimized structure to the manufacturing equipment. Through combination of the sensor module and the intelligent terminal, the system can monitor key parameters in real time. A production model is established based on time sequence analysis, equipment parameters are dynamically adjusted, and particularly, the temperature of sintering equipment is controlled through a GARCH model; the temperature can be accurately controlled, and the influence of temperature fluctuation is reduced, so that the product quality and stability are improved, and meanwhile, the energy consumption and the maintenance cost are reduced.

The invention discloses a high-performance aluminum nitride ceramic rapid sintering method, which belongs to the technical field of ceramic materials, and comprises the following steps: preparing a ceramic raw material according to a formula: uniformly mixing high-purity aluminum nitride powder, a sintering aid, an anti-hydrolysis agent and a solvent, and drying in a nitrogen atmosphere, the dosage ratio of the high-purity aluminum nitride powder to the sintering aid to the anti-hydrolysis agent is 1: (1%-3%): (0.5%-1.5%); the uniformly mixed aluminum nitride powder is subjected to hot pressed sintering for 10-60 min in a neutral or reducing atmosphere at the temperature of 1650-1850 DEG C and the pressure of 20-30 MPa, and the density of the aluminum nitride powder reaches 99% or above; and re-sintering the ceramic: sintering the primarily sintered aluminum nitride ceramic for 1-6 hours at the temperature of 1850-2000 DEG C and normal pressure in a reducing atmosphere. The prepared aluminum nitride ceramic not only has high heat-conducting property, but also is high in sintering efficiency, meanwhile, the problem that waste gas is generated in the degreasing process is avoided, and environmental protection is facilitated.

The invention relates to a film sintering high-frequency automatic moving device which comprises a mounting frame, a sintering high-frequency machine is fixed to the outer wall of the middle of the mounting frame, a driving wire feeding roller and a driving wire collecting roller are distributed and mounted on the outer walls of the two ends of the top of the mounting frame, and a guide seat is fixed to the outer wall, located between the sintering high-frequency machine and the driving wire feeding roller, of the mounting frame. A guide groove is formed in the outer wall of the top of the guide seat, and a mounting frame is fixed to the outer wall of one side of the top of the guide seat. The sintering uniform cooling assembly is arranged, an arc cover fixedly covers the top of the water storage tank, an upper guide wheel and a lower guide wheel are matched to guide and convey an electromagnetic wire, the problem that the electromagnetic wire is bent and wrinkled is avoided, a driving wire feeding roller can drive a turbine pump to work, cooling water in the water storage tank is pumped, and the cooling effect of the electromagnetic wire is improved. And the liquid is pumped into the arc cover through the liquid pumping pipe, is sprayed and discharged through the spraying holes, and is sprayed on the outer wall of the conducting and conveying electromagnetic wire in the arc cover, so that a thin film formed after the electromagnetic wire is sintered is quickly cooled.

The present invention discloses a system for continuously measuring the air permeability of sintering mixtures and a measuring method thereof, and belongs to the technical field of metallurgical sintering technology. The present invention includes a ore trough, a distributor and a sintering machine. The head of the sintering machine is provided with a detection unit, and the detection unit includes a blower, a main pipe and a branch pipe. One end of the main pipe is connected to the blower, and the other end of the main pipe is connected to two branch pipes. The two branch pipes are arranged in a vertical direction, and one end of the branch pipe is inserted into the mixture. A gas pressure measuring instrument is provided in the branch pipe. The detection unit is provided at the head of the sintering machine. The gas pressure measuring instrument installed in each branch pipe by the detection unit measures the pressure in the corresponding pipeline, and finally obtains the air permeability of the detected mixture. The whole system has a simple structure and is easy to operate, and can realize continuous detection of the air permeability of the mixture.

The utility model relates to the technical field of ceramic sintering, and discloses a low-temperature fast-firing conductive ceramic microwave-assisted sintering device which comprises a microwave sintering furnace and a furnace chamber arranged on the microwave sintering furnace, the furnace chamber comprises a sintering chamber, a placing frame is connected in the furnace chamber in a sliding mode, and the placing frame comprises placing plates and sealing plates which are fixed alternately. The sealing plate is used for shielding the furnace chamber; the placing frame is arranged in the furnace chamber of the microwave sintering furnace, the placing frame is formed by alternately fixing the placing plates and the sealing plates, a plurality of conductive ceramics can be placed on the placing plates, the placing frame is moved to enable the conductive ceramics to sequentially enter the sintering chamber of the furnace chamber to be sintered, and the conductive ceramics are directly moved out after being sintered. The efficient sintering of the conductive ceramic is realized by adopting a reciprocating translation mode, the conductive ceramic is convenient to take, and the sintered conductive ceramic is still sintered when the sintered conductive ceramic is taken, so that the sintering efficiency is improved, and the phenomena of heat dissipation and energy waste caused by repeatedly opening the furnace chamber are avoided.

The utility model relates to the field of sintering furnaces, in particular to a sintering furnace capable of improving the sintering yield. Comprising a furnace body, two furnace doors are installed on one side of the furnace body, an adjusting structure is arranged in the furnace body and comprises two lead screws, the two lead screws are rotationally arranged on the two sides of the furnace body in a penetrating mode respectively, the arc surfaces of the lead screws are in threaded connection with adjusting rings, a plurality of sliding plates are fixedly connected to one sides of the adjusting rings, and the sections of the sliding plates are in a convex shape; the arc face of the lead screw is slidably connected with a sliding ring, an annular hole is formed in one side of the sliding ring, and the inner wall of the annular hole is slidably connected with the sliding plate. The sintering furnace capable of improving the sintering yield has the advantages that sintered solar cells of different sizes can be stably fixed in the furnace body, and the stability of the sintering process is improved; the solar cell can be automatically controlled to rotate in the sintering process, so that each part of the cell is uniformly exposed under a heat source, local internal temperature difference is avoided, and the sintering efficiency is improved.

The present invention discloses a preparation device and a preparation method of a foamed ceramic thermal insulation board, including a track platform, a sintering furnace, and a material distribution rack. The top of the track platform is provided with a sliding trolley, a circulating shaker, a reflux component, and a material stirring mechanism. The present invention connects a feed pipe with an external raw material discharge pipe by arranging a circulating shaker, so that the external raw material enters the inside of the feed pipe through the feed pipe, and then is sprayed into the inside of the silo through the spray head. During the process, the first drive motor is started again, and the output end of the first drive motor drives the coupling shaft to drive the turntable to rotate in a circle, so that the push column drives the push frame to move up and down reciprocatingly, so that the pull rod pulls the feed pipe to shake up and down, thereby improving the flow of raw materials inside the feed pipe, thereby avoiding the accumulation of raw materials inside the feed pipe to cause blockage, and then facilitating the discharge of raw materials inside the feed pipe.

The W5Si3-WSi2 / WC composite material comprises the following components in parts by weight: a W5Si3 intermetallic compound and a WSi2 intermetallic compound are used as reinforcing and toughening phases; wC is used as a matrix; al2O3 powder; y2O3 powder; a phenolic resin binder; the spark plasma sintering preparation method comprises the following steps: step 1, preparing W-Si intermetallic compound powder A; secondly, the W-Si intermetallic compound powder A is subjected to heat treatment, and then W5Si3 intermetallic compound powder is obtained; step 3, preparing W-Si intermetallic compound powder B; 4, the W-Si intermetallic compound powder B is subjected to a heat treatment process, and WSi2 intermetallic compound powder is obtained; fifthly, W5Si3-WSi2 / WC composite powder is prepared; step 6, preparing a W5Si3-WSi2 / WC composite powder prefabricated blank wafer sample; step 7, putting the W5Si3-WSi2 / WC composite powder prefabricated blank wafer sample into a discharge plasma sintering furnace, and carrying out vacuum discharge plasma sintering on the W5Si3-WSi2 / WC composite powder prefabricated blank wafer sample; the W5Si3-WSi2 / WC composite material has the advantages of high preparation efficiency and simple process, and the W5Si3-WSi2 / WC composite material has high density and high mechanical properties.

The utility model relates to the technical field of sintering equipment, and improves the sealing effect of a sintering machine seal in the prior art. The sealing device comprises a first sealing strip which is connected with a bottom plate of a sintering pallet and extends in the length direction of a ventilation opening in the bottom of the sintering pallet; the second sealing strip is arranged on the top plate of the sintering air bellow and extends in the length direction of the air suction opening in the top of the sintering air bellow; the first sealing strip and the second sealing strip are correspondingly arranged in an attached mode so as to form dynamic sealing. Through the dynamic fitting design of the first sealing strip and the second sealing strip, good sealing performance is always maintained in the operation process of the sintering machine, the air leakage phenomenon is effectively reduced, the sintering efficiency is improved, and the energy consumption is reduced.

The invention relates to the technical field of ferrite material production, and in particular to a heat-resistant sintering pot for producing high magnetic permeability MnZn ferrite materials, comprising a pot body, an interlayer is provided inside the pot body, a heating layer is installed inside the interlayer, the upper end of the left side of the pot body is connected with a feed hopper, the lower end of the pot body is symmetrically fixedly connected with a discharge pipe, and solenoid valves are installed inside the two discharge pipes. The invention has reasonable design and ingenious structure. Through the mutual cooperation between the structures, not only can the raw materials adhered to the inner wall of the sintering pot be cleaned, but also the raw materials in the pot can be stirred during the cleaning process, thereby improving the heating uniformity and sintering efficiency of the sintering pot, and the filter screen inside the air outlet pipe can be automatically cleaned during the sintering process to ensure the use effect of the air outlet pipe. The invention has good market competitiveness and is worth recommending.

The utility model relates to the technical field of lithium battery positive electrode materials, and discloses a pretreatment sagger and sintering equipment. The lithium layer is arranged at the bottom of the sagger body and is suitable for preventing lithium from being absorbed by the sagger body in the sintering process; the lithium layer is composed of one of lithium carbonate, lithium hydroxide or lithium oxide and is fixed to the bottom of the sagger body. The sintering equipment comprises a sintering furnace; the saggar bearing frame is arranged in the sintering furnace and used for fixing and arranging the multiple pretreatment saggars. The gas circulation system is used for introducing inert gas or reducing gas into the furnace in the sintering process so as to prevent lithium from being oxidized. The lithium layer can reduce direct contact between the sagger body and lithium, so that corrosion and abrasion of the sagger are reduced, and the service life of the sagger is prolonged.

The invention relates to a nickel-zinc ferrite material and a preparation method and application thereof.The nickel-zinc ferrite material is prepared from main components and additives, the main components comprise Fe2O3, NiO, ZnO and CuO, and the additives comprise Bi2O3, Co2O3 and ZrO2; based on 100 mol% of the total substance amount of the main components, the content of Fe2O3 is 65 mol% to 66.7 mol%, the content of NiO is 10.6 mol% to 13 mol%, the content of ZnO is 17 mol% to 20 mol%, and the content of CuO is 2 mol% to 4.5 mol%. The nickel-zinc ferrite has the advantages of high wide-temperature magnetic conductivity, high broadband magnetic conductivity and the like by regulating and controlling the ratio of the main components of the raw materials, and can be better applied to the fields of transformers and wireless charging, so that the wireless charging efficiency is higher.

The invention discloses a high-temperature sintering device for a diamond dicing blade, and relates to the technical field of diamond cutting blade machining, the high-temperature sintering device comprises a chassis, two limiting circular grooves are formed in the side of the top end of the chassis, a plurality of uniformly distributed material bearing mechanisms are arranged between the two limiting circular grooves, and a material supply mechanism is arranged between the two guide grooves; a material processing mechanism is arranged on the outer wall of the chassis, and a control box is fixedly arranged at one end of the material processing mechanism. A connecting block on a supporting shaft drives a driving rod to drive a material bearing mechanism, the material bearing mechanism is matched with a material supplying mechanism and a material processing mechanism, it can be guaranteed that accurate material conversion is conducted on diamond cutting blades, butt joint is conducted on the processes of feeding, preheating, sintering and the like of the diamond cutting blades correspondingly, and the efficiency is improved. The sintering part does not need to be frequently switched on and off, the service life of equipment is prolonged, energy consumption is reduced, meanwhile, continuous sintering of the diamond cutting disc is guaranteed, and sintering efficiency is improved.

The utility model discloses a novel ceramsite high-efficiency sintering special device which comprises a bottom plate, the right side of the top of the bottom plate is fixedly connected with a cooling liquid box, the left side of the top of the bottom plate is fixedly connected with a shell, and a cooling shell is arranged in an inner cavity of the shell. According to the ceramsite cooling device, the pressure pump works, cooling liquid enters the bent pipe through the guide pipe and the through pipe, ceramsite in the cooling shell is cooled, the motor works to drive the stirring rod to rotate, and the cooling fan is driven to rotate through the driving wheel, the belt and the rotating rod, so that cold air is generated and enters the cooling shell through the ventilation pipe to cool the ceramsite; the stirring rod rotates and drives the stirring plate to rotate at the same time, so that ceramsite is uniformly cooled, the ceramsite is rapidly cooled in a mode of combining air cooling and water cooling, the ceramsite is prevented from occupying a cooling device for a long time, the ceramsite which is successfully sintered every time can be rapidly discharged out of the sintering chamber for sintering the next batch of ceramsite, and thus the ceramsite sintering efficiency is improved; and the use of people is facilitated.

The utility model discloses a novel burning end net which comprises grids and bearing columns, the number of the grids is two layers, the bearing columns are arranged between the adjacent grids, the grids are square grids, the bearing columns are arranged corresponding to the four corners and the central position of the square grids, the total number of the bearing columns in a single layer is five, and the bearing columns in a single layer are high-temperature-resistant bearing columns. According to the sintering end net, the periphery and the middle of the sintering end net are supported, stacking of the sintering end net is achieved, two layers of to-be-sintered end products can be sintered at a time, the sintering efficiency can be improved, meanwhile, sintering of more to-be-sintered end products can be achieved at a time, energy consumption can be remarkably reduced, and meanwhile the sintering quality is not affected.

The invention discloses a capacitor porcelain bushing insulator sintering mold which comprises a sintering box, a mold closing mechanism and a cold and hot switching mechanism. A first driving mechanism and a second driving mechanism are arranged on the top wall of the sintering box; the mold closing mechanism comprises upper fixing seats, a placement seat and lower fixing seats, the upper fixing seats which are uniformly distributed are arranged at the lower end of the first driving mechanism, the lower fixing seats which are uniformly distributed are fixedly connected to the bottom wall of the sintering box, and the upper fixing seats correspond to the vertically adjacent lower fixing seats in the vertical direction in position; the opposite inner side ends of the upper fixing seat and the vertically adjacent lower fixing seat are fixedly connected with placing seats; the cold and hot switching mechanism comprises a heating plate, cooling assemblies and fixing cylinders, and the cooling assemblies and the fixing cylinders which are evenly distributed are arranged at the lower end of the second driving mechanism. According to the capacitor porcelain bushing insulator sintering mold, a blank body is heated in a centralized mode, the sintering efficiency is improved, and meanwhile cooling can be accelerated by switching the cooling assemblies.

The utility model relates to the technical field of sintering trolleys, in particular to a combined sintering trolley which comprises a trolley body and a grate strip plate, guide blocks are fixedly connected to the two sides of the grate strip plate, clamping grooves used for being matched with the guide blocks to slide are formed in the two sides of the inner wall of the trolley body, no less than five sets of positioning grooves are formed in the guide blocks, and the grate strip plate is arranged in the clamping grooves. A positioning groove is formed in the top of the inner wall of the clamping groove, a guide groove corresponding to the positioning groove is formed in the top of the inner wall of the clamping groove, the guide groove is communicated with the outside, and a positioning block is clamped in the positioning groove. And the grate strip plate can be mounted and dismounted, so that the use is convenient, the cleaning time on a vehicle body is shortened, and the sintering efficiency is improved.

The invention relates to the field of heat treatment equipment, in particular to a sintering furnace with a preheating function, which comprises a sintering furnace body, a sealing cover, a holding furnace and the like, the sintering furnace body is connected with a sealing cover; a heat preservation furnace is installed on the sintering furnace body. Two different furnace bodies including the sintering furnace body and the heat preservation furnace are arranged, two temperature areas are divided, the sintering furnace body is kept in high-temperature operation all the time, the heat preservation furnace is used for preheating materials, preliminarily cooling the sintered materials and transferring the materials in the different temperature areas, and therefore uninterrupted continuous sintering treatment is achieved; the problem that in the prior art, a large amount of time is consumed due to the fact that a single sintering furnace body is directly heated and cooled is solved, the sintering efficiency is effectively improved, waste heat of the sintering furnace body is used for preheating materials, additional heating equipment is not needed, and therefore the heat energy utilization rate is increased, and the heat transfer speed is increased.

The invention discloses a laser additive manufacturing method and system for a gradient refractive index glass material, and belongs to the field of additive manufacturing. According to the method, laser is used for bombarding a target glass material to generate micro powder, the micro powder is directionally drained and deposited to a glass substrate, a micro powder deposition layer is sintered through laser to form a glass thin layer, and the steps are repeated, so that the gradient glass material with specific refractive index distribution is finally obtained by switching the target glass material, adjusting the deposition thickness and changing the laser sintering path. According to the method, layer-by-layer deposition of micro powder generated by laser bombardment of the target material is innovatively adopted to replace powder laying of a powder laying roller in a traditional laser additive manufacturing method, so that the particle size is reduced, and meanwhile, the problems of powder agglomeration and powder grading are effectively solved. Compared with traditional homogeneous glass, the method has the advantages that various specific glass components can be macroscopically stored in the glass in a required distribution form, a gradient refractive index glass material is formed, and the method can also be used for manufacturing sandwich structure glass materials and other multi-element heterogeneous glass materials with specific distribution in two-dimensional or three-dimensional dimensions. The preparation method of the multi-element heterogeneous material endows the glass material with more application prospects in the fields of optical lenses, anti-counterfeiting, optical storage and the like.

The invention relates to the technical field of piezoelectric ceramic materials, and particularly discloses a composite high-temperature piezoelectric ceramic material and a preparation method thereof, the chemical general formula of the composite high-temperature piezoelectric ceramic material is Bi < 0.5-x > [Mn < 0.25 > Sn < 0.5 > Pr < 0.25 >] < x > Na < 0.5 > TiO < 3 + a >% WO < 3 + b >% ZnSO4, the components and proportion of the base material are adjusted and optimized, meanwhile, WO3 and ZnSO4 with specific content are adopted as additives, the piezoelectric activity and thermal stability of the piezoelectric ceramic can be improved, functional filler is added in the preparation process, sintering efficiency is improved, the ceramic material forms a more compact crystal structure, and the piezoelectric ceramic has a good application prospect. The strength and the toughness of the ceramic material are enhanced. The composite high-temperature piezoelectric ceramic material has high Curie temperature and high piezoelectric activity, and the application range of the piezoelectric ceramic material can be effectively widened.

The invention discloses a silver nano soldering paste low-temperature sintering device of a semiconductor chip, which belongs to the technical field of semiconductor chip processing and comprises a box body, a heating table, a sucking pump, a box door, a first gas transmission mechanism, a second gas transmission mechanism and a gas circulation mechanism. According to the silver nano soldering paste low-temperature sintering device of the semiconductor chip, the first gas transmission mechanism and the second gas transmission mechanism are arranged, in the sintering process, nitrogen serves as a protective atmosphere, silver nano particles can be prevented from being oxidized, poor compounds such as silver oxide are prevented from being formed on the surface of the soldering paste, and the conductivity and the bonding force of a welding contact surface can be reduced due to oxidation; therefore, the welding quality is influenced; the hydrogen has a reduction effect at high temperature, can reduce existing oxides on the surface of the silver nano soldering paste, helps welding and fusion of silver particles, and ensures better welding quality.

The utility model discloses a material sintering device which comprises a sintering furnace, a plurality of sets of heating rods are evenly installed on the upper side in the sintering furnace, a sintering furnace opening is formed in the bottoms of the heating rods, meanwhile, a crucible is installed at the bottom of the sintering furnace opening, sintering materials are placed in the crucible, and the bottom of the crucible is movably installed on the surface of a movable base. The bottom of the moving seat is movably mounted on the carrying furnace door, and meanwhile, the bottom of the carrying furnace door is connected with the electric lifting column; a material positioning and taking-out assembly is installed on the front portion of the carrying furnace door Sliding blocks are installed on the two sides of the bottom of the movable base. According to the material sintering device, the third air cylinder jacks the moving seat through the top plate, the moving seat moves upwards, the crucible penetrates through the operation opening, materials in the crucible are taken out, the materials in the crucible can be taken out rapidly, new kinds of materials are replaced, and the sintering efficiency of the device is improved.