12results about How to "Improve sintering quality" patented technology

The invention belongs to the field of steel smelting, and particularly discloses a scalable umbrella rib type supported fuel gas injection device and a control method thereof. The device comprises a gas pipe, a blowing pipe, a blowing cover and a push-pull device. The blowing cover comprises a plurality of parallel supporting frames, telescopic rods connected with the adjacent supporting frames and foldable cover bodies connected with the adjacent supporting frames, and end plates are arranged at the two ends of the blowing cover. The injection pipe fixedly penetrates through the top of the cover body and is communicated with the gas pipe, and gas enters the material layer through the injection pipe. The injection cover sliding rails are arranged on the two sides of the sintering trolley correspondingly, the push-pull device drives the two ends of the injection cover to slide along the injection cover sliding rails correspondingly, space can be vacated for maintenance, and the fuel gas injection starting point position and the fuel gas injection covering length can be adjusted. According to the method, by controlling the fuel gas injection starting point position, the fuel gas injection coverage length and the fuel gas injection amount, the optimal production working condition can be guaranteed, and the production quality is improved.

The invention relates to a device and a method for improving air permeability of a thick bed by utilizing biomass fuel. The device comprises a T-shaped frame and a cross rod, the T-shaped frames are arranged in a bilateral symmetry mode, and the horizontal ends of the T-shaped frames face downwards. The cross rod is correspondingly and fixedly connected between the upper portions of the vertical ends of the T-shaped frames on the two sides. The method comprises the following steps: S1, preparing hydrogen-rich biomass; s2, forming the biomass combustion rod; and S3, sintering application. According to the invention, biomass which is a renewable clean resource is reinforced and applied to the field of sintering production, so that carbon emission is effectively reduced, and dependence on carbon-containing fuel in the sintering process is reduced; and meanwhile, the matching device can effectively improve the material layer air permeability in the thick material layer sintering process, and the effects of increasing yield and reducing consumption are achieved.

The utility model relates to the technical field of sintering equipment, in particular to high-temperature sintering equipment for a porous wear-resistant membrane, which comprises a bottom plate, the device further comprises a first pump body, a first gas pipe, a second gas pipe, a gas analysis box, a conveying pump and a conveying pipe, the sintering box is installed on the upper end surface of the bottom plate, the first pump body is installed on the upper end surface of the sintering box, and the front end of the first pump body is connected with one end of the first gas pipe; after the first pump body is started, air in the center of the sintering box is extracted through the first air pipe and then injected into the sintering box through the second air pipe, so that a rotary flowing air mode is formed in the sintering box, air originally far away from the sampling mechanism can be sampled when the air is sampled, more representative air samples can be contacted, and the sampling efficiency is improved. The gas analysis is more accurate, the sintering quality and consistency are improved, the capability of monitoring the gas generated in the sintering process is enhanced, meanwhile, the atmosphere distribution can be uniform, and the product quality difference caused by non-uniform temperature and atmosphere is reduced.

The utility model relates to sintering processing technical field especially relates to a kind of sintering frock of silicon carbide ceramic crystal boat, including base, intermediate support plate, first backing plate and backing plate etc., the upper side of base middle part is connected with left and right two intermediate support plates, the first backing plate is placed in the front and rear two parts of intermediate support plate, the first backing plate is placed with backing plate uniformly.This utility model is fixed with the contact and fixation of first limiting plate and first limiting base and base, then install first backing plate and second backing plate etc., then the crystal boat body is placed on backing plate, and is fixed after contact with backrest, then install adjusting limiting plate, and then push adjusting compression plate and move to the crystal boat body limiting, to be able to quickly position, clamping and support to crystal boat body, it is convenient for crystal boat body quick fixation, prevent crystal boat body displacement or wobble in sintering process, reduce deformation and crack, improve sintering quality.

The present application relates to the technical field of metallurgy, and discloses a kind of iron ore powder sintering reaction performance evaluation method and system, to solve the problems of fragmentation, strong experimental dependence, unable to measure key parameters and poor dynamic adaptability of existing method, scheme mainly includes: obtaining the chemical composition of the iron ore powder to be evaluated, and normalizing processing;Using the Equilib module of FactSage, the results under different temperature conditions are calculated when the reaction equilibrium is obtained;Extract liquid phase production, liquid phase chemical composition and reaction enthalpy data;And using the Viscosity module of FactSage, the liquid phase viscosity under different temperature conditions is calculated;Select the liquid phase production, reaction enthalpy and liquid phase viscosity under a certain temperature as evaluation parameters, carry out vector normalization processing and set weight, use TOPSIS multi-criteria decision method, respectively calculate the relative closeness of each group of evaluation parameters;Relative closeness is used as the evaluation index of iron ore powder sintering reaction performance.The present application improves the accuracy and efficiency of sintering reaction performance evaluation.

The utility model relates to the technical field of soft magnetism, and discloses sintering equipment for producing soft magnetic ferrite particles, which comprises a cooling assembly, a sintering assembly is arranged in the cooling assembly, and the top of the sintering assembly is connected with a stirring assembly. Splashing and dissipation in the feeding and running process of materials can be effectively prevented, a cooling medium is introduced into the closed cavity in the sleeve through the water inlet pipe, the heat dissipation efficiency is effectively improved, the sintering uniformity is remarkably improved through the heating pipes which are combined in the sintering cylinder and distributed in the circumferential direction, and the service life of the sintering cylinder is prolonged. The materials fed from the feeding hopper are flattened through mechanical rotation and then fed into the sintering cylinder, so that the materials are prevented from being stacked into blocks or unevenly distributed in the sintering cylinder, impurities carried in the fed materials can be prevented from influencing the sintering quality, and the materials are continuously stirred through cooperation with a triangular stirring rod at the bottom of a rotating rod; the heat can be uniformly transferred to different heating surfaces of the material, so that the sintering quality is further improved.

The invention discloses a material loosening device, a sintering cup and a sintering test method, the material loosening device comprises: a frame, which is circumferentially provided with a plurality of mounting parts at intervals, and the outer diameter of the frame is smaller than the inner diameter of the sintering cup; the plurality of material loosening rods are movably connected to the mounting part, each material loosening rod comprises a plurality of material loosening sections, and the plurality of material loosening sections are movably connected in the length direction of the material loosening rods. According to the device, the height and density of the material loosening rods are adjustable, so that a tester can construct a gradient or differentiated ventilation structure in the sintering cup, the air permeability change caused by factors such as non-uniform material distribution and different compaction degrees in industrial production is simulated, the controllable adjustment of the air permeability of a mixture in the sintering process is realized, and the test efficiency is improved. A direct and accurate experiment basis is provided for structural optimization and operation parameter adjustment of the industrial field loosening device, the sintering ore quality is improved in an assisted mode, solid fuel consumption is reduced, and the energy utilization efficiency is improved.

The utility model belongs to the technical field of semiconductor packaging, and particularly relates to a detachable power module sintering pressure head. The detachable power module sintering pressure head comprises a pressure base used for being connected with a pressure driving mechanism; the pressing blocks are detachably connected with the pressure base; wherein the pressing block is provided with a plurality of bosses used for being in contact with a chip. The part for providing pressure and the part for contacting the chip of the sintering pressure head are detachably connected, so that the application universality is greatly improved, and the cost is reduced. And for different chip layouts and DBC sizes, only the design of the detachable pressing block needs to be changed, and the pressure base does not need to be changed, so that the cost and the flexibility of a production line are reduced. The boss of the contact chip or the DTS copper sheet can be designed according to the layout of the chip, on one hand, the application is more flexible compared with an independent pressure head, on the other hand, the stress on the chip is more uniform compared with an integrated pressure head, and the sintering quality is better.

The invention relates to the technical field of aluminum-based composite material preparation, in particular to a ceramic reinforced aluminum-based workpiece and a preparation method. The ceramic reinforced aluminum-based workpiece is prepared by the method. The method comprises the steps that a forming die is assembled and filled with aluminum-based composite powder; sintering the forming die filled with the aluminum-based composite powder in an inert atmosphere to obtain a sintered green body; performing die forging treatment on the sintered green body to obtain a prefabricated green body; and after the prefabricated blank is machined to the size of a finished product, the prefabricated blank is sequentially subjected to solution treatment and aging treatment, and the ceramic reinforced aluminum-based workpiece is obtained. By means of the method, the ceramic reinforced aluminum-based workpiece with the large length-diameter ratio can be prepared, and the problems that cracks are generated when a formed blank is not separated from the female die, and layering and fragmentation are generated in the demolding process are solved.

The utility model discloses a quick lime proportioning control device, which is applied to the technical field of lime proportioning control, and is characterized in that a stepping motor is started to enable a driving wheel to drive a driven wheel to rotate, so that a connecting shaft can drive a first crushing roller and a second crushing roller to rotate, quick lime is extruded into small blocks through the occlusion between crushing blocks, and the quick lime proportioning control is realized. The discharge pipe is prevented from being blocked; the driving motor is started to drive the two-way screw rod to rotate, the two connecting blocks can be close to or separated from each other when the two-way screw rod rotates, so that the two baffles can be rotated to be in a pointed cone shape or a flat plate shape, the lime proportioning amount is controlled according to the angle of the pointed cone-shaped baffles, accurate control over proportioning is achieved, the sinter quality is improved, manual intervention is reduced, and the production efficiency is improved. The production period is shortened and the production efficiency is improved.

The utility model relates to metal processing equipment technical field discloses a kind of metal powder vacuum sintering furnace of temperature control is convenient, including vacuum furnace body, workpiece loading platform and bottom plate, workpiece loading platform lower end surface and the vacuum furnace body inner bottom surface are fixed, and the vacuum furnace body lower end surface and the bottom plate upper end surface fixed connection bottom plate upper end surface fixed connection have electric heater and pulse current generator;Vacuum furnace body inner wall surface fixed connection has three groups of heating coil pipes, and three groups of the heating coil pipe are evenly distributed along the circumferential direction of vacuum furnace body;The input end and output end of three groups of the heating coil pipe are connected with the electric heater to form independent loop by high-temperature resistant wire. The device can rapidly and uniformly heat metal powder, and optimize its sintering effect and microstructure by electric pulse treatment, improve density and mechanical properties;At the same time, real-time monitoring temperature and air pressure ensure the accurate control of sintering process, improve quality and efficiency.

The utility model relates to the green body sintering support technical field, specifically disclose green body anti -deformation support's vertical sintering support, including the protection frame, it includes protection frame body and sets up a plurality of placing groove in protection frame body, sets up the closed structure at protection frame body opening, lock catch structure is used for fixing closed structure at protection frame body opening, placing frame sets up in protection frame body, and it includes placing frame body and sets up a plurality of limit rods at placing frame body top, limit rod both sides are equipped with limit slot, limit rod both ends are connected extension block, the whole in the utility model adopts vertical design, and placing frame is easy to place into protection frame body, and can choose the placing frame of different layers according to green body height, and the cooperation of placing mould and placing frame can support and hang in the air to green body, improve sintering stability, the distance between limit rod on placing frame is adjustable, and can adapt different placing mould according to sintering green body.