37results about How to "Improve sintering performance" patented technology

The invention belongs to the technical field of powder metallurgy, and particularly relates to superfine tungsten carbide and a preparation method thereof. A preparation method of superfine tungsten carbide comprises the following steps that blue tungsten is reduced through a reverse hydrogen reduction method, and tungsten powder is obtained; the tungsten powder is subjected to carbon blending and uniform mixing, high-temperature carbonization is conducted, and tungsten carbide is obtained; and carrying out crushing airflow classification on the tungsten carbide to obtain the superfine tungsten carbide. According to the preparation method of the superfine tungsten carbide, the particle size range of the prepared tungsten carbide powder is that D10 ranges from 0.361 [mu] m to D90 ranges from 0.929 [mu] m, D50 is 0.585 [mu] m, the ratio of (D90-D10) to D50 is 0.971, particle size distribution is narrow, particle uniformity is good, the phenomenon that crystal grains grow up abnormally is avoided, and the quality of the powder is greatly improved.

The utility model discloses a high-performance low-cost sintering device for grain boundary diffusion neodymium iron boron permanent magnet processing, and relates to the technical field of sintering equipment, the sintering device comprises a furnace body, a processing mechanism is arranged in the furnace body and used for feeding, discharging and rolling over materials, and the processing mechanism comprises a feeding assembly, a discharging assembly and a sintering assembly. And the feeding assembly comprises a connecting base and a supporting table, a plurality of material grooves are fixedly formed in the rear surface of the connecting base, and supporting blocks are symmetrically and fixedly connected to the positions, close to the left sides, of the tops of the material grooves. According to the high-performance and low-cost sintering device for machining the grain boundary diffusion neodymium iron boron permanent magnet, a motor is started to drive a crank to rotate, and a rack is made to do transverse reciprocating motion through a connecting rod, so that a gear is driven to intermittently rotate forwards or backwards, and then a turning roller is driven to synchronously rotate; therefore, materials on the surface of the trough can roll back and forth, the materials are prevented from being blocked, and the sintering effect of the materials is improved.

The invention belongs to the technical field of ceramics, and particularly relates to a light glazed ceramic large brick and a preparation method thereof. The light glazed ceramic large brick is composed of a blank body layer, a ground coat layer and a surface glazed layer, wherein the blank body layer is prepared from the following components in parts by weight: 35-42 parts of kaolin, 25-30 parts of argil, 8-12 parts of cordierite, 10-15 parts of quartz, 5-9 parts of aluminum oxide, 4-9 parts of potassium feldspar and 1-3 parts of a binder; the ground glaze layer is prepared from the following components in parts by weight: 25-37 parts of potassium feldspar, 15-20 parts of calcined talc, 15-20 parts of frit, 10-25 parts of quartz, 8-10 parts of calcite, 5-10 parts of zirconium silicate and 5-8 parts of calcined zinc oxide; and the surface polishing glaze is prepared from the following components in parts by weight: 30-40 parts of frit, 20-30 parts of clay, 15-22 parts of albite, 10-15 parts of zinc oxide, 10-15 parts of stone powder and 8-13 parts of kaolin. Meanwhile, according to the preparation method of the large ceramic brick, a low-temperature fast firing technology is adopted, the sintering performance of the large ceramic brick is improved, the strength and hardness of the large ceramic brick are improved, and the large ceramic brick is safe, firm and not prone to breakage when bearing certain pressure or impact force.

The application belongs to the technical field of copper-based diamond composite materials, and particularly relates to a diamond copper-based composite material and a preparation method thereof. The preparation method comprises the following steps: mixing modified diamond powder and copper powder by ball milling, and obtaining a diamond copper core material after hot-pressing sintering; activating the diamond copper core material, then magnetron sputtering a Ni / Pr alloy target material onto the upper and lower surfaces of the activated diamond copper core material to form a Ni / Pr composite intermediate layer; vacuum welding copper sheets on the upper and lower surfaces of the Ni / Pr composite intermediate layer to obtain the diamond copper-based composite material. The diamond copper-based composite material prepared by the application has high density, excellent thermal conductivity, low thermal expansion coefficient and is convenient to process.

The invention relates to the technical field of all-ceramic tooth processing, in particular to energy-saving sintering equipment for zirconium dioxide all-ceramic tooth production, which comprises a sintering furnace body, and an adjusting assembly is movably arranged in the sintering furnace body. The adjusting assembly is slidably driven in the sintering furnace body through the driving assembly, zirconium dioxide all-ceramic teeth are placed in the adjusting assembly, the adjusting assembly is controlled to enter the low-temperature preheating cavity, the medium-temperature heating cavity and the high-temperature sintering cavity in sequence, and the zirconium dioxide all-ceramic teeth are heated in a sectional mode, so that the zirconium dioxide all-ceramic teeth are heated in the low-temperature preheating cavity, the medium-temperature heating cavity and the high-temperature sintering cavity. Precise control over the all-ceramic tooth sintering process can be achieved, the product quality and the production efficiency are improved, energy consumption and the production cost are reduced, after all-ceramic teeth are sintered, heat energy recycling is conducted on sintering waste heat of zirconium dioxide all-ceramic teeth through the heat exchange structure, waste of redundant heat energy is avoided, and energy conservation and emission reduction are achieved. Therefore, the energy utilization rate of the sintering equipment is improved to a great extent, and the energy-saving and efficient effects are achieved for the sintering equipment.

The invention discloses an Al2O3-SiC-MgAl2O4-C castable prepared from waste magnesia carbon materials and a preparation method of the Al2O3-SiC-MgAl2O4-C castable, and belongs to the technical field of unshaped refractory materials, the Al2O3-SiC-MgAl2O4-C castable is prepared from white corundum aggregate, silicon carbide, waste magnesia carbon bricks, spherical asphalt, alpha-Al2O3 fine powder, silicon oxide fine powder, monatomic silicon powder and calcium aluminate cement as raw materials, and a water reducing agent and water are added; the preparation method comprises the following steps: mixing the materials in a stirrer, stirring, pouring and molding, curing at room temperature, demolding, drying for 36-50 hours, carrying out heat treatment at 1550-1650 DEG C in a carbon-buried atmosphere, and keeping the temperature for 3-5 hours to obtain the refractory castable for the iron runner by using the waste magnesia carbon bricks. The prepared refractory castable is excellent in high-temperature performance and high in oxidation resistance, the service life is obviously prolonged, and meanwhile resource recycling is enhanced.

The present application relates to the field of composite ceramics, and aims to provide a new B4C-cBN composite ceramic with good mechanical properties and thermal conductivity, and a preparation method thereof, which comprises the following steps: S100, mixing boron carbide 5-9 parts, cubic boron nitride 1-5 parts and sintering additives to obtain a mixture; S200, obtaining the B4C-cBN composite ceramic through a sintering process; the sintering temperature is 1400-1550 DEG C; the sintering pressure is 4.9-5.5 GPa; and the sintering time is 1-3 h. The reason why aluminum and cobalt are selected as sintering additives is that the melting point of aluminum is low, and a liquid phase formed in the sintering process can effectively fill the pores through capillary action, thereby promoting the sintering process. Aluminum reacts with cubic boron nitride to form aluminum nitride, which can inhibit the conversion of cubic boron nitride into hexagonal boron nitride. Cobalt has oxygen affinity and can play a purifying role of "deoxidation and degassing", thereby reducing pores, improving density and improving the sintering performance of the composite ceramic. The optimal raw material ratio and sintering parameters are determined, so that the mechanical properties and thermal conductivity of the composite ceramic are both excellent.

The invention discloses a high-precision ceramic material for semiconductors and a preparation method thereof, and relates to the technical field of ceramic materials for semiconductors. The material is made of the following raw materials by weight: 55-75 parts of a matrix component, 3-5 parts of a sintering aid, 8-12 parts of a subcomponent, 10-20 parts of a reinforcing component, and 1-3 parts of a bonding component; the matrix component is Ba-Ti-Bi-rare earth element-Zr-A-M-O, wherein A is a mixture of B and Te in a mass ratio of 1:(0.1-0.3); M is at least one of In, Fe, Co, Mo, and Ta; the subcomponent is a mixture of nano-niobium silicide, nano-tantalum carbide, and nano-gallium nitride in a mass ratio of 1:(0.8-1.2):(0.3-0.5). The material has high strength, sufficient fracture toughness, and low dielectric loss and apparent porosity.

The invention discloses a composite refractory material blast furnace skimmer and a preparation method thereof. The blast furnace skimmer is prepared from sintered corundum, brown corundum, white corundum, chromic oxide or activated aluminum oxide, zirconium oxide or boron carbide, metal chromium powder or metal aluminum powder, squamous graphite, silicon carbide, silicon carbide, aluminum oxide fibers, polypropylene explosion-proof fibers, high-temperature asphalt powder and a polyphosphate dispersing agent in different specifications. The preparation method comprises the following steps: respectively preparing a powdery raw material and a liquid raw material according to the raw material ratio; and mixing the powdery raw material and the liquid raw material, pouring and molding, and then air-drying, drying and sintering to obtain the product. The blast furnace skimmer provided by the invention has relatively high strength, slag corrosion resistance, scouring resistance, oxidation resistance and thermal shock resistance, and the service life of the blast furnace skimmer is greatly prolonged.

Provided are an oxide sintered body mainly containing a molybdenum oxide, a sputtering target containing the sintered body, and an oxide thin film formed by the sintered body. In the present invention, by adding a specific (pseudo) metal oxide in a prescribed range to a molybdenum oxide and a niobium oxide which are difficult to sinter, the sinterability can be improved and high-density characteristics can be ensured even if pressureless sintering is performed.

The application provides a ceramic sintering device with a protection structure, and belongs to the technical field of ceramic production machinery, which comprises a sintering device, a closing door is rotationally connected to the front part of the sintering device, a protection seat is arranged on the bottom side of the inside of the sintering device, a detachable ceramic sintering table is nested and connected to the upper part of the protection seat, and a sintering chamber is arranged in the sintering device. Three water collecting devices are arranged at three space positions of the upper, middle and lower parts of the ceramic sintering device, a water scraping plate is connected to the upper part of the water collecting device, water is conveniently collected into a water collecting box or a water receiving chute, meanwhile, the water collecting device is used in cooperation with a water blocking cover, water droplets are effectively prevented from falling on the ceramic and affecting the sintering operation, a minimized ceramic sintering space is formed through the sintering chamber and a sintering closing seat, there is almost no temperature gradient in the inside, the sintering effect is improved, and the detachable ceramic sintering table is convenient to separate from the sintering device, cleaning and maintenance are facilitated, and the operation efficiency is improved.

The utility model discloses a quick-connection preheating type graphite box air intake and exhaust structure for a high-temperature sintering furnace, which comprises an empty hearth, a sintering graphite box is arranged in the vacuum hearth, air intake cylinders are arranged on the left side and the right side of the lower surface of the sintering graphite box, and the output ends of the air intake cylinders are fixedly connected with common air pipes. A second graphite gas pipe is fixedly connected to the upper surface of the common gas pipe, a plurality of distribution discs are arranged in the second graphite gas pipe, a quick-release connector is fixedly connected to the upper surface of the second graphite gas pipe, and the upper surface of the quick-release connector is fixedly connected with the sintering graphite box. The gas can be uniformly dispersed in the second graphite gas pipe through the uniform distribution holes of the distribution disc, and each part of the gas can be in full contact with the high-temperature graphite pipe wall in the preheating process, so that the temperature of the gas entering the sintering graphite box is more uniform, and the sintering effect is further improved.

The invention discloses a TiB2-FeCoCrNiZr aluminum liquid corrosion resistant material, wherein the FeCoCrNiZr is prepared by mechanical alloying of five metal element powders of Fe, Co, Cr, Ni and Zr. 0.5 The high entropy alloy powder is mixed with TiB2 powder, ball milled, dried and sintered to prepare the material. The aluminum liquid corrosion resistant material prepared by the invention is easy to prepare and has good corrosion resistance.

The invention relates to the technical field of investment casting, in particular to a ceramic core material, a ceramic core and a preparation method and application thereof. The ceramic core material comprises a core material and a plasticizer, the core material comprises the following components in parts by weight: 65-85 parts of fused white corundum powder, 5-25 parts of metal silicon powder and 1-15 parts of silicon nitride powder. In the ceramic core material disclosed by the invention, the core material is compounded by a certain amount of fused corundum powder, metal silicon powder and silicon nitride powder, and silicon nitride is used as a second phase and is matched with other components, so that the ceramic core is endowed with more excellent high-temperature strength, deformation resistance, thermal shock resistance and the like; moreover, silicon nitride is used as a binding phase of the ceramic core, and has high solubility in a high-concentration aqueous alkali, so that the removal efficiency of the ceramic core is greatly improved.

The invention relates to silver powder, and particularly discloses a preparation method of the silver powder, the silver powder and application. The silver powder prepared through the preparation method has the advantage of being high in specific surface area, meanwhile, the sinterability in the low-temperature environment is good, the technological process is simple, and therefore the silver powder has good application prospects in the field of photovoltaic cells.

The utility model discloses a nitrogenized silicon substrate sintering double -deck backing plate isolation jig in the backing plate technical field, including the first backing plate, both sides of first backing plate top all are fixedly installed with the square, the number of square is four, four the top of square all are fixedly connected with the vertical pole, the outer surface between four vertical pole is movably connected with the second backing plate, the surface of second backing plate is equipped with the through -hole, still be connected through the limiting assembly between second backing plate and first backing plate. The utility model discloses through setting second backing plate, through -hole and adjusting assembly, when using, the staff can place the nitrogenized silicon substrate on second backing plate, then through adjusting assembly to nitrogenized silicon substrate is surrounded and is blocked, avoids to access to the nitrogenized silicon substrate falling in sintering furnace, according to the size of nitrogenized silicon substrate and is surrounded, also can avoid the collision, and the hot air in sintering furnace can be blown to the nitrogenized silicon substrate bottom through the through -hole, thereby can improve the sintering effect.

The invention provides polyamide 12 / modified boron nitride composite powder as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. Boron nitride is stripped into boron nitride nanosheets by utilizing high-pressure homogeneous impact force, shearing force and hole effect, a dispersing agent rich in hydroxyl groups is introduced into the boron nitride to modify the boron nitride into hydroxylated boron nitride, and the dispersity and compatibility among the modified boron nitride, polyamide 12 liquid drops and a solvent are obviously improved; the prepared composite powder has good sphericity, narrow particle size distribution and excellent mechanical properties, and can be well applied to powder materials for selective laser sintering.

The application discloses a doped modified lead metaniobate-based high-temperature piezoelectric ceramic and a preparation method thereof. The doped modified lead metaniobate-based high-temperature piezoelectric ceramic has a general formula of PbNb2O6+x mol% Nb2O5+y wt% Sc2O3+z wt% SrCO3+delta mol% Ta2O5; wherein x=0-8, y=0-0.8, z=0-1, and delta=0-12. The application solves the problems of sintering difficulty, low density and low piezoelectric coefficient of pure PbNb2O6 by adding excess Nb2O5; on the basis, Sc 3+ , Sr 2+ , and Ta 5+ ions are doped in sequence, so that the piezoelectric performance of the PbNb2O6-based piezoelectric ceramic is continuously improved while the high Curie temperature is ensured.

The invention discloses tantalum capacitor production equipment, and relates to the technical field of capacitor preparation. The device comprises a sintering furnace and two cover plates, the two cover plates are symmetrically distributed on the two sides of the sintering furnace, the two sides of the interior of the sintering furnace are divided into two different temperature zones which are used for dewaxing and sintering correspondingly, limiting columns are evenly and fixedly installed at the adjacent ends of the cover plates, and the limiting columns are slidably connected to the interiors of the two sides of the sintering furnace in a limited mode. Lock catches are connected between the cover plates and the two sides of the sintering furnace in a clamped mode, sleeves are fixedly installed in the centers of the adjacent ends of the cover plates, and a sliding column is connected between the sleeves on the two sides in a sleeved mode. The tantalum block can be driven to rotate, swing and turn over in the sintering furnace, it is guaranteed that all faces of the tantalum block in the sintering furnace are evenly heated, the tantalum block dewaxing and sintering effects are improved, the production quality of tantalum capacitors is guaranteed, the tantalum block can be dewaxed and sintered in the sintering furnace, and the tantalum block dewaxing and sintering efficiency is improved.

This invention discloses a method for preparing magnesium aluminum spinel using calcium aluminate filter residue from water treatment agents, belonging to the field of magnesium aluminum spinel synthesis technology. The method involves drying the calcium aluminate filter residue from water treatment agents and then calcining it at a low temperature of 400-800℃ to obtain an intermediate material. This intermediate material is then mixed with a magnesium source and rare earth oxides and ball-milled to obtain a mixed powder. The mixed powder is then pressed into pellets and sintered at a high temperature of 1400-1700℃ to obtain magnesium aluminum spinel. This method uses calcium aluminate filter residue from industrial solid waste water treatment agents as the main raw material, fully utilizing its raw material characteristics to prepare a high-purity, high-density magnesium aluminum spinel product, achieving high-value utilization of waste. Furthermore, this method is simple to operate, low-cost, and easy for industrial production.

The application discloses a high-performance aluminum nitride ceramic rapid sintering method and belongs to the technical field of ceramic materials, and comprises the following steps: preparing ceramic raw materials according to a formula: uniformly mixing high-purity aluminum nitride powder, a sintering aid, a hydrolysis-resistant agent and a solvent, and drying under a nitrogen atmosphere; the ratio of the high-purity aluminum nitride powder, the sintering aid and the hydrolysis-resistant agent is 1:1%-3%:0.5%-1.5%; primary sintering of the ceramic: heat-press sintering the uniformly mixed aluminum nitride powder under a neutral or reducing atmosphere at 1650-1850 DEG C and a pressure of 20-30 MPa for 10-60 min, so that the density of the aluminum nitride powder reaches more than 99%; secondary sintering of the ceramic: sintering the primary-sintered aluminum nitride ceramic under a reducing atmosphere at 1850-2000 DEG C under normal pressure for 1-6 h. The prepared aluminum nitride ceramic not only has high heat conduction performance, but also has high sintering efficiency; meanwhile, the problem of waste gas generated in the degreasing process is avoided, and the environment is protected.

This invention discloses a Zisha mineral water filter, made from 60% Zisha clay, 20% tourmaline powder, 15% maifanite powder, and 5% clinoptilolite powder. The process involves vacuum refining, aging, molding, air-drying, and high-temperature sintering at 850℃ to produce mineralized ceramic blocks. The product can be directly placed in water cups or teapots, transforming tap water into weakly alkaline, small-molecule cluster active water (pH 7.4–8.2) within 10 minutes, dissolving beneficial minerals without heavy metal leaching. It is resistant to boiling water, does not pulverize, and does not cloud the water, with a service life of 6–12 months. This invention features a stable, safe, and convenient process suitable for daily drinking water, solving the problems of traditional filter media's single function, poor stability, and insufficient safety. It is suitable for healthy drinking water in homes and offices.

This invention relates to the field of conductive pastes, specifically a low-temperature conductive paste suitable for 3D printing, its preparation method, and its applications. The low-temperature conductive paste comprises silver nanoparticles, a diluent, and a binder; wherein the surface of the silver nanoparticles is coated with ligands; the diluent is an organic alcohol; and the binder is an alcohol-soluble resin. This invention aims to overcome the problems of easy agglomeration of silver nanoparticles and poor dispersibility during long-term storage in existing conductive pastes, leading to easy clogging of the 3D printing nozzle, poor conductivity after sintering, and poor adhesion. The low-temperature conductive paste prepared by this invention not only has good dispersibility and stability but also exhibits good density and conductivity after sintering, enabling high-precision direct-write 3D printing of 10 μm and below.

The application discloses a structural ceramic material, a preparation method and application and a nozzle, and belongs to the technical field of the nozzle for the Yellow River water sprinkling irrigation. The structural ceramic material comprises a base and an added phase, wherein the base is (Ti, W)C, and the added phase is Ti3SiC2, and the structural ceramic material is prepared by adopting discharge plasma coupling high-frequency induction sintering. Ti3SiC2 uniformly dispersed in the (Ti, W)C base is used as a sintering aid, the good electric conductivity and high thermal conductivity of the Ti3SiC2 are utilized, the discharge sintering effect is strengthened and the heat conduction is accelerated, the sintering performance of the (Ti, W)C ceramic material is improved, sintering is completed at a lower sintering temperature, and the defect of poor high-temperature mechanical property caused by the traditional addition of a metal bonding phase as a sintering aid is overcome; the addition of the Ti3SiC2 can also improve the tribological property of the (Ti, W)C ceramic material, and the obtained structural ceramic material has excellent friction-reducing and wear-resistant properties, and is an excellent nozzle material for the Yellow River water sprinkling irrigation.

The invention relates to the technical field of magnetic core sintering, in particular to a magnetic core glue discharging sintering system and a sintering method.The magnetic core glue discharging sintering system comprises a sintering kiln body, a furnace door, a furnace bed, a material returning groove and a base, the furnace door is installed on the front face of the sintering kiln body, the furnace bed is installed in an inner cavity of the sintering kiln body, the material returning groove is formed in the upper surface of the furnace bed, and the base is located in the material returning groove; a hot air circulation assembly is arranged on the sintering kiln body and comprises a circulation pipe, and the circulation pipe is arranged on the peripheral side, except the bottom, of the sintering kiln body. According to the magnetic core glue discharging sintering system and the sintering method, through mutual cooperation of the temperature equalizing assembly and the vibration assembly, the bottom of a magnetic core can be evenly heated; and the vibration ball is made to touch the material returning groove, so that slight vibration is generated at the connecting position of the base and the material returning groove, and the problem that the base and the material returning groove are bonded through condensed solid residues after glue discharging, and material returning is difficult is avoided.

The application relates to an ultrathin device and a preparation method and application thereof. The ultrathin device is prepared by the following steps: a mixture containing raw material powder, a binder and a solvent is granulated by a spray drying method to obtain a first precursor, the raw material powder comprises metal material powder and / or ceramic material powder, the surface area average particle size of the raw material powder is 1-15 mu m, the mass ratio of the raw material powder to the binder is 100:(1-10), the surface area average particle size of the first precursor is 40-80 mu m, and the fluidity of the first precursor is lower than 30 s / 50 g; the first precursor is subjected to a forming treatment to obtain a second precursor, the second precursor has a preset shape; and the second precursor is subjected to a heat treatment to obtain the ultrathin device, and the thickness of the ultrathin device is less than or equal to 1 mm.

The application belongs to the field of powder metallurgy and cermet material, and discloses a preparation method of high-entropy binder phase Ti(C, N) based cermet material and a product thereof. The preparation method uses Fe, Mn, Co and Cr elemental metal powders as raw materials, mixes and performs ball milling to obtain high-entropy alloy powder, and then the high-entropy alloy powder is mixed with Ti(C, N) powder and secondary carbide powder to obtain a mixed powder, and then a forming agent and anhydrous ethanol are sequentially added to perform wet milling to obtain a mixed slurry, which is dried, ground, sieved, pressed, degreased and sintered to obtain the high-entropy alloy Ti(C, N) based cermet material. The obtained high-entropy alloy Ti(C, N) based cermet material has uniformly distributed core-ring structures, and the ring phase transition layer with moderate thickness effectively inhibits the growth of Ti(C, N) grains, achieves fine-grain strengthening and solid solution strengthening, has good bending strength, fracture toughness, high hardness and high density, and can be used for high-speed cutting, finishing and semi-finishing under complex conditions.

The invention provides a sintering dehumidification method, which relates to the technical field of sintering, and comprises the following steps: conveying a material to be sintered to a sintering trolley; the sintering trolley is used for conducting sintering operation on the materials, so that the materials gradually form a sinter layer, a combustion layer, a preheating layer, a drying layer and an over-wet layer from top to bottom; carrying out air draft operation on the sintered material, and carrying out step-by-step adjustment on the air draft height based on the height change of the over-wet layer, so that the air draft range covers at least part of the over-wet layer in the height direction; and after the combustion layer, the preheating layer, the drying layer and the over-wet layer disappear, obtaining a sintered ore finished product. Water vapor in the material can be efficiently removed through air draft operation, so that the condensation amount of the water vapor is reduced, the thickness of an over-wet layer is reduced, and the sintering effect is improved. And moreover, by controlling the air draft height step by step, the problem of waste of the air draft amount is obviously reduced under the condition that the dehumidification requirement of the over-wet layer is met.

The invention belongs to the technical field of ATO target material preparation, and discloses an ATO target material and a preparation method thereof.The ATO target material is obtained by mixing and sintering 90-95.5 wt% of SnO2 powder, 3-8.5 wt% of Sb2O3 powder and 1.5-2 wt% of ZnO powder; wherein the particle size D50 of the SnO2 powder is 0.5-2 [mu] m, the particle size D50 of the Sb2O3 powder is 3-15 [mu] m, and the particle size D50 of the ZnO powder is 3-15 [mu] m. Through particle size matching of the SnO2 powder, the Sb2O3 powder and the ZnO powder, the target material sintering promoting effect of ZnO is fully exerted, and the relative density of the target material is effectively improved.

The utility model relates to the technical field of metallurgical engineering, and discloses a sintering machine material distribution uniformity adjusting device which comprises a sintering furnace, a hollow column is fixedly connected to the outer side of the sintering furnace, an adjusting column is slidably connected to the interior of the hollow column, a scraper is fixedly connected to the bottom of the adjusting column, and a shell is fixedly connected to the outer side of the hollow column. An inner shell is fixedly connected into the outer shell, a plug pin is slidably connected into the inner shell, the plug pin is sleeved with a spring, a locking assembly is arranged on the outer side of the plug pin, and a conveying assembly is arranged in the middle of the sintering furnace. According to the utility model, the bolts are inserted into the different circular holes in the adjusting columns, so that the height of the scraping plate is adjusted, and the thickness of materials is accurately controlled. Compared with the scheme that only the position of the scraper blade is fixed in the prior art, the adjusting mode not only improves the uniformity of the materials, but also enables the thickness of the materials to be more controllable in the sintering process, and therefore the sintering effect is improved.