113 results about "Aluminum composites" patented technology

The application discloses a high-hardness high-strength low-temperature sintering composite ceramic material and a preparation method thereof, and comprises the following raw materials in parts by weight: active silicon-aluminum composite material 35-45 parts, modified manganese-silicon slag 20-25 parts, alpha-alumina micro powder 10-15 parts, sodium feldspar 12-18 parts, wollastonite 8-12 parts, low-temperature composite flux 10-15 parts and water 80-100 parts. The high-hardness high-strength low-temperature sintering composite ceramic material takes the active silicon-aluminum composite material as the raw material, introduces multiple solid waste derived components such as the modified manganese-silicon slag and the low-temperature composite flux in the formula, the components complement each other and have a synergistic effect in the sintering process, so that the ceramic material has high hardness and high bending strength, and the unification of solid waste reduction, resource utilization and ceramic performance improvement is realized.

The application relates to the technical field of metal material processing, in particular to a rolling forming process of an aluminum composite plate, which comprises the following steps: S1, surface pretreatment of the aluminum composite plate; S2, accurate clamping and positioning; S3, applying directional pressure and material flow guiding to the aluminum composite plate through a multi-station continuous rolling forming device; S4, multi-pass progressive rolling and local thickening; S5, cooling, shaping, surface finishing and nondestructive testing. The application has the following effects: the multi-station continuous rolling device applies radial and axial pressure, drives directional flow of the material, realizes local accumulation and thickening through multi-pass progressive rolling, realizes the local strengthening effect of on-demand material distribution according to the principle of invariable volume, reduces the waste of the material in the aluminum composite plate processing process, improves the material utilization rate, and reduces the production cost.

The present application relates to radiator technical field, specifically to a kind of multi-channel partition temperature control intelligent radiator, including two main pipes and plug at the end of main pipe, multiple copper-aluminum composite radiating fins, copper pipe is inserted in the copper-aluminum composite radiating fin, further comprising: the top of the copper-aluminum composite radiating fin is equipped with air outlet top cover, air outlet top cover has a certain opening angle door, forms air outlet that exhausts outward;The bottom of the copper-aluminum composite radiating fin is equipped with air inlet bottom cover, air inlet bottom cover has a certain opening angle door, by up and down openable and closable movable door one and movable door two, can let copper-aluminum composite radiating fin inside form air flow channel, when temperature rises, utilize the characteristics of high-temperature air to flow upwards, drive copper-aluminum composite radiating fin inside air flow, utilize top inclined plane and bottom inclined plane, guarantee top air outlet flow smoothly, increase bottom air inlet area, cooperate gasket and side plate reduce external weak air flow interference, enhance chimney effect.

The application discloses a kind of FPC temperature acquisition structures, including the temperature acquisition component of connecting aluminum-based FPC, temperature acquisition component includes integrally injection-molded temperature acquisition shell and conductor structure, temperature acquisition shell includes temperature acquisition part with temperature sensor and positioning part with connecting window, conductor structure is formed by copper material connecting piece and aluminum material connecting piece composite Copper material connecting piece is extended to temperature acquisition part and connected with temperature sensor, and aluminum material connecting piece is welded with aluminum-based FPC at connecting window position, the combination of same metal is better, welding strength is high and contact area is large, improve electrical contact performance, so that temperature information collected by temperature sensor can be reliably transmitted to FPC product, this conductor structure is designed using copper-aluminum composite structure, with high bonding strength, excellent conductivity and thermal conductivity, easy to weld, low contact resistance characteristics, can meet the welding requirements of conductor structure and aluminum-based FPC, also can reduce production cost, improve product performance.

The application provides a mixed powder for foamed aluminum, a foamed aluminum composite material and a preparation method thereof, the mixed powder comprising a base material, a foaming agent and a brazing agent; the base material comprises aluminum elements, silicon elements and copper elements; the copper elements exist in the form of copper powder; the difference between the solidus temperature of the brazing agent and the hot rolling temperature is-30 DEG C to 30 DEG C, and the mass percentage of the brazing agent is greater than or equal to 0.2wt% based on the mixed powder. For the foamed aluminum alloy system with Cu as a secondary main alloy element, the application can directly foam without diffusion annealing, and uniform and small pores are obtained, so the application prospect is wide.

This invention discloses a paint remover for steel-aluminum composite materials, belonging to the field of metal material surface treatment technology. It comprises the following components in weight percentages: 5%-8% alkaline substance; 5%-10% lipase component; 10%-16% solvent; 5%-10% surfactant; 6%-13% co-solvent; 5%-8% corrosion inhibitor; and water as the balance. The paint remover is prepared from alkaline substance, lipase component, solvent, surfactant, co-solvent, corrosion inhibitor, and water. It is used for removing paint from steel-aluminum composite materials. On one hand, the alkaline substance saponifies some groups in the paint, dissolving them in the solvent and water. On the other hand, heating and steaming the paint film reduces its strength and adhesion to the metal. Then, utilizing the wetting, penetration, and affinity effects of the surfactant, the catalytic effect of the lipase component, and the protective effect of the corrosion inhibitor on the steel-aluminum substrate, the goal of removing paint quickly without corroding the substrate is achieved.

This invention discloses an A2-grade flame-retardant aluminum composite panel core material and its preparation method. The flame-retardant aluminum composite panel core material comprises the following raw materials in parts by weight: 10-12 parts of matrix resin, 85-90 parts of flame retardant, 0.5-1.5 parts of flame retardant synergist, 0.01-0.03 parts of benzoyl peroxide, 1-2 parts of anionic surfactant, 2-4 parts of compatibilizer, 1-2 parts of antioxidant, and 0.5-1.5 parts of antibacterial agent. The aluminum composite panel core material contains a flame retardant, which decomposes upon heating during combustion, releasing water vapor, absorbing a large amount of heat, reducing the surface temperature of the material, and diluting the concentration of oxygen and combustible gases. At the same time, it forms a "worm-like" fluffy char layer that effectively insulates against heat and oxygen and prevents combustibles from escaping. The addition of the flame retardant synergist promotes further densification of the formed char layer, preventing the char layer from burning through or falling off, further improving the flame-retardant effect of the aluminum composite panel core material, achieving a flame-retardant grade of A2.

This invention discloses a lightweight robotic arm with a foamed aluminum composite skeleton. The invention relates to the field of robotic arm technology. The lightweight robotic arm with a foamed aluminum composite skeleton includes a cast aluminum robot rotating base, a gradient foamed aluminum composite upper arm, a gradient foamed aluminum composite lower arm, and an end effector mounting base connected in sequence. The main bodies of the gradient foamed aluminum composite upper arm and the gradient foamed aluminum composite lower arm are both integrally formed foamed aluminum composite skeletons. Axial main truss rods and damping nodes are arranged axially inside the foamed aluminum composite skeleton. By setting the gradient foamed aluminum composite upper arm and the gradient foamed aluminum composite lower arm, and utilizing the porous characteristics of foamed aluminum, passive heat dissipation, vibration reduction, noise reduction, and health monitoring functions are integrated into the skeleton. Energy-free passive temperature control is achieved by filling the embedded axial cooling channels with phase change material, eliminating the need for an active cooling system.

This invention relates to a method for synthesizing piperazine by amination of ethylene glycol. The method involves the amination of ethylene glycol in a system of ethylene glycol, ammonia, hydrogen, and a solvent, under the action of a nickel-copper-cerium-aluminum composite catalyst. According to the method of this invention, the conversion rate of ethylene glycol can reach over 86%, the selectivity of piperazine can reach over 80%, and the overall selectivity of piperazine + ethylenediamine can reach over 90%. The production of piperazine using this invention has advantages such as a simple process flow, mild reaction conditions, environmental friendliness, and low production cost, making it a novel method easily achievable for industrial production.

This invention relates to the field of plate heat exchanger technology, and provides a corrosion-resistant copper-aluminum composite plate heat exchanger, comprising a heat exchanger body. A feed pipe is fixedly connected to the lower front part of the left end and the upper rear part of the left end of the heat exchanger body. A cavity frame is fixedly connected to the left end of the heat exchanger body on the side opposite to the feed pipe. An extension pipe is fixedly connected to the left end of each feed pipe. A support groove is formed in the middle of the top of each extension pipe. A cleaning component is provided on the inner wall of each support groove. A filter component is provided on the inner wall of each extension pipe. Through grooves are formed on the right sides of both ends of the cavity frame above the extension pipe. Two transmission rods are connected to the inner wall of the cavity frame via a synchronous transmission component. Fluid agitation in the diagonal orifice flow channel region helps to propel the fluid into each plate flow channel, preventing fluid stagnation within the flow channels and thus improving the utilization rate of the effective heat exchange area of ​​the heat exchanger.

This invention belongs to the field of metal matrix composite technology, specifically relating to a method for preparing a horizontally continuously cast copper-aluminum composite material. The preparation method includes the following steps: continuously forming a copper plate; controlling the temperature of the copper plate to be no lower than 900°C between the output copper plate and the aluminum melt inlet; using an inert gas, cold-spraying nano-aluminum nitride and micron-sized copper composite particles onto the copper plate strip; then cold-spraying nano-titanium and micron-sized aluminum composite particles to form a composite coating on the copper plate; the aluminum melt flows out onto the composite coating, and after cooling, the aluminum melt solidifies on the copper plate and forms a metallurgical bond with the copper plate; rolling is then performed to obtain the copper-aluminum composite material. The preparation method of this invention can suppress the formation of brittle phases at the copper-aluminum composite interface and improve the interface stability during processing.

This invention discloses a method for preparing phosphorus-silicon-aluminum composite coated titanium dioxide for papermaking, belonging to the field of papermaking technology. The method involves mixing and dispersing titanium dioxide, deionized water, and a dispersant, and adjusting the pH to obtain slurry A. Slurry A is then reacted by simultaneously adding phosphate and silicon salt solutions under stirring to obtain coated slurry B. Slurry B is then reacted by adding aluminum salt solution under stirring to obtain coated slurry C. Coated slurry C is then filtered, washed, and dried to obtain coated titanium dioxide. The coated titanium dioxide is then surface-modified and post-treated to obtain phosphorus-silicon-aluminum composite coated titanium dioxide for papermaking. This invention produces a high-performance, low-cost, and environmentally friendly titanium dioxide for papermaking, comprehensively solving the bottleneck problems of poor dispersibility, complex processes, high costs, and excessive wastewater in existing technologies.

This utility model discloses a steel-aluminum composite spline shaft forging die. An electric heating wire is embedded in the lower die to heat the steel spline shaft. Combined with the spring action on the punch, when the punch acts on the aluminum sleeve, the spring reduces the impact of the buffer head on the aluminum tube, achieving relative positioning between the punch end and the steel spline shaft. When the spring is further compressed, the sleeves on both sides of the punch act on the aluminum tube, pressing the aluminum tube to bond with the steel spline shaft. This utility model's steel-aluminum composite spline shaft forging die features a simple structure, making the stamping process more convenient and faster. It uses a preheated steel spline shaft, combined with a spring to achieve two-stage pressure, maintaining pressure until the aluminum material completely fills the annular groove and between the spline teeth, resulting in a 10% increase in connection strength, a production cycle of 120 seconds per piece, and a scrap rate of <0.5%.

This utility model relates to the field of battery cell technology and discloses a novel soft-pack PACK structure, including a housing. A cover is fixedly connected to the outer wall of the housing, and a sealing ring is fixedly connected to the inner wall of the cover. A support is installed inside the housing, and an epoxy board is fixedly connected to the outer wall of the support. Copper-aluminum composite busbars are installed on the left and right outer walls of the epoxy board, with threaded rods threaded into the interior of the copper-aluminum composite busbars. An aluminum busbar is fixedly connected inside the epoxy board, and a pressure strip is provided on the outer wall of the aluminum busbar. In this utility model, the housing and cover house the battery cells to protect them from external impact damage. An epoxy board is placed on the side of the support, and then an aluminum busbar is installed inside the epoxy board. A pressure strip is then fixed to one side of the aluminum busbar, and a data acquisition line is placed between the pressure strip and the aluminum busbar. This achieves the effects of ensuring battery cell overcurrent, welding strength, and stable data acquisition.

The application discloses a multi-layer composite power battery box with intelligent solar static constant temperature and an upper cover structure, and belongs to the technical field of new energy automobile power batteries. The box body adopts a four-layer structure of outer aluminum alloy micro-arc oxidation + hydrophobic coating, PEEK pyramid dot array + aluminum foil aerogel hollow layer, high-temperature-resistant aluminum-carbon-aluminum composite layer and GF-PTFE integrated anti-seepage lining. The upper cover is matched with a composite structure and a flow channel anodization + ceramic coating double-layer protection. An intelligent solar static heat exchange heat management system is matched, automatic switching of a power supply mode in an illumination environment or a non-illumination environment is realized, through a serpentine static heat exchange flow channel and precise temperature control, the battery area is precisely kept at 25 DEG C plus or minus 2 DEG C in an environment of -40 DEG C to 60 DEG C. A spinning locking type sealing joint is matched, and long-term leakage prevention is realized. The application integrates eight core functions of constant temperature, heat insulation, heat equalization, heating, insulation, flame retardation and explosion prevention, solves the problems of easy rusting, interlayer peeling, poor anti-seepage and low constant temperature precision of the existing battery box, has the advantages of long-term corrosion resistance, anti-seismic and anti-aging, precise constant temperature and high reliable sealing, greatly prolongs the service life of the battery and the box body, and is suitable for various new energy automobile power battery systems.

The application discloses a copper-aluminum composite pipe blank preparation device and method based on bidirectional cooling control, and belongs to the technical field of metal composite solid-liquid casting. The device comprises coaxially arranged inner and outer crystallizers, a positioning base, an aluminum pipe outer mold and a split runner. The aluminum pipe and the inner crystallizer form an annular casting cavity, and the inner and outer crystallizers are provided with bidirectional cooling channels. The method comprises coaxial assembly, copper melt smelting in a protective atmosphere, split uniform casting and inner-outer cooperative forced cooling. The application precisely regulates the temperature field through bidirectional cooling, shortens the high-temperature contact time of copper and aluminum, suppresses the growth of brittle intermetallic compounds, reduces interface oxidation, pores and inclusions and improves the metallurgical bonding strength. The device structure is simple, the specification is adjustable, the production efficiency is high, the problems of poor interface bonding and many defects in traditional composite pipe preparation are effectively solved, and the device is suitable for the industrialized production of copper-aluminum composite pipe blanks in the fields of electric power and automobiles.

This invention provides a method for preparing copper-plated aluminum-based CCS, comprising the following steps: S1, aluminum substrate pretreatment: sequentially degreasing, pickling, activation, and transition layer preparation of the aluminum substrate; S2, copper layer deposition: depositing a copper layer on the surface of the pretreated aluminum substrate; S3, post-plating treatment: sequentially passivating and annealing the aluminum substrate after copper layer deposition to obtain a copper-aluminum composite plate; S4, integrated CCS molding: laser cutting, bending, insulating film coating, busbar welding, and terminal crimping of the post-plating copper-aluminum composite plate to obtain the finished copper-plated aluminum-based CCS. This invention achieves lightweight, low-cost, and high-reliability production of copper-plated aluminum-based CCS, adapting to the application requirements of high-voltage scenarios such as new energy vehicle power batteries and energy storage equipment.

The application discloses a preparation method of PMMA microsphere-pored cellulose fiber aerogel / porous aluminum composite sound-absorbing material, and belongs to the technical field of porous sound-absorbing materials. The application takes porous aluminum as a matrix, takes polymethyl methacrylate (PMMA) microspheres as a pore-forming agent for cellulose fiber aerogel, adds the porous aluminum filled with the microspheres into a deacetylated cellulose fiber suspension, performs vacuum suction, performs freeze drying, immerses into an ethyl acetate solution, and removes the PMMA microspheres after heating, so that finally the PMMA microsphere-pored cellulose fiber aerogel is obtained in the pores of the porous aluminum. The porous structure formed in the aerogel of the obtained composite sound-absorbing material significantly increases the interface contact area in the sound wave propagation path, promotes the dissipation and reflection of sound wave energy, and thus improves the overall sound-absorbing efficiency. In addition, the porous aluminum itself serves as a rigid skeleton and provides necessary mechanical support for the composite structure, so that the composite structure can meet the comprehensive application requirements of high strength and high efficient sound absorption.

This invention relates to the field of materials surface engineering technology, and in particular to a method for preparing a titanium-aluminum composite lamination layer for use in semiconductor device cavities. The method includes sandblasting a substrate, followed by arc lamination of an 80–120 μm titanium underlayer under a locally inert atmosphere, and then lamination of a 200–300 μm aluminum overlayer in an atmospheric environment. This method achieves high bonding strength (30–32 N / mm²) while avoiding titanium oxidation through a gradient structure of "titanium underlayer and aluminum surface," interfacial micro-diffusion, and a synergistic mechanism of mechanical interlocking. The processing cost is reduced by 40%–50% compared to pure titanium lamination, meeting the dual requirements of high coating reliability and economical mass production for semiconductor devices.

This invention discloses an aluminum extrusion die assembly, belonging to the field of aluminum composite processing technology. It includes a fixed die and a guiding part, as well as a composite processing part. The composite processing part includes a moving die, an execution part, a punching part, and a transmission part. The moving die is equipped with a locking part for automatic positioning when the forming is complete. The aluminum material is processed by the composite processing part. During the stamping stage, the pressure from the execution part is transmitted to the moving die through the punching part and the transmission part for forming. When the forming is complete, the locking part automatically positions the moving die and drives the transmission part to switch states, causing the pressure from the execution part to directly act on the punching part, punching and polishing the formed aluminum material. This invention integrates stamping, punching, and polishing into a single die assembly, requiring only one drive component to automatically complete multiple continuous processing steps, reducing equipment costs and failure rates, and improving processing efficiency and accuracy.

The present application belongs to the technical field of surface treatment, and in particular to a surface treatment process for diamond / aluminum composite material. The present application comprises the following steps: degreasing, drying, sand blasting, degreasing, pickling, sensitization, activation, electroless nickel plating, low-temperature annealing, degreasing, pickling, impact nickel plating, electroplating nickel, pre-plating gold, electroplating gold, and low-temperature annealing. The present application reduces the stress between the surface of the composite material and the plating layer through a stepwise heating mode, thereby improving the bonding force and meeting the welding technical requirements of the diamond / aluminum composite material.

The application discloses a kind of copper-aluminum composite strip continuous casting and rolling preparation methods of ultrasonic vibration assisted reinforcement, it is related to metal laminated composite material preparation technical field, including preheating treatment to copper strip and control liquidus temperature;The copper strip after preheating is introduced with liquidus into the casting and rolling crystallization area formed by casting and rolling roll and carries out solid-liquid casting and rolling composite;The composite strip obtained after casting and rolling is carried out hierarchical cooling;The composite strip after cooling is sequentially carried out cold rolling finishing and low-temperature stress relief annealing.The application fundamentally eliminates interface pore inclusion and oxide residue, solves the technical problem of large dispersion of bonding strength in conventional casting and rolling process;Grain refinement strengthening and interface structure optimization synergistically improve the interface mechanical properties;Effectively release the interface thermal stress generated by the difference of copper-aluminum thermal expansion coefficient, avoid interface cracking during cooling process;Bonding strength consistency is high, can meet the stringent requirements of new energy automobile battery connecting piece and other high reliability application fields.

The application relates to a method for preparing a beryllium-aluminum composite material by adopting electric arc additive manufacturing, and relates to a method for preparing a beryllium-aluminum composite material. In order to solve the problem that solidification cracks are caused by the difference between the thermal physical properties of two phases in the electric arc additive manufacturing process of the beryllium-aluminum composite material. In the process of preparing the beryllium-aluminum composite material by layer-by-layer deposition of the electric arc additive manufacturing, the environmental temperature of the beryllium-aluminum composite material is controlled, and the beryllium-aluminum composite material is controlled to be cooled between adjacent layer deposition, the thermal gradient and the cooling rate in the solidification and cooling process are reduced, the instantaneous stress peak value caused by the rapid shrinkage and the uneven thermal strain is reduced, the crack driving force is reduced, and the problem that the thermal physical properties of the beryllium and aluminum two phases are greatly different is overcome. The preparation period of the method is short, the forming efficiency is high, the cost is low, and the method can meet the manufacturing of large metal components. The near-net forming of the beryllium-aluminum composite material component can also be realized, and the material utilization rate is greatly improved.

An ultra-thin aluminum composite television back panel comprises an aluminum composite matrix consisting of a surface aluminum plate, a corrugated aluminum alloy core layer, and a bottom aluminum plate. The surface and bottom aluminum plates are made of high-purity aluminum alloy with a thickness of 0.2-0.5 mm, accounting for 40-60% of the weight; the core layer has a corrugation height of 0.5-1.0 mm and accounts for 30-50% of the weight. Nanoscale carbon fibers with a mass fraction of 5-10% and an aspect ratio of 20-60 are distributed within the matrix as a reinforcing phase. The back panel exhibits a gradient thickness structure, thicker at the edges and thinner at the center, with an edge thickness of 1.2-1.5 mm and a center thickness of 0.8-1.2 mm. Due to its unique composite structure and reinforcing phase distribution, the back panel exhibits excellent comprehensive performance, with a flexural strength greater than 200 MPa, a thermal conductivity greater than 150 W / m·K, and a surface flatness of less than 0.1 mm / m, achieving ultra-thinness while simultaneously meeting the requirements for high-strength support and efficient heat dissipation.

The application discloses a silicon-manganese-aluminum composite oxide carrier and a preparation and application thereof. The silicon-manganese-aluminum composite oxide carrier is modified by Si and Mn to Al2O3, and a microwave-assisted homogeneous precipitation method is adopted to load a first active additive Si on a carrier Al2O3, the Si precursor grows slowly in the Al2O3 channel with the Al2O3 particles as crystal nuclei, and then an impregnation method is adopted to load a second active additive Mn on the SiO2 / Al2O3 composite carrier. The silicon-manganese-aluminum composite oxide carrier is loaded with an active metal Pt, and the obtained catalyst can improve the CO catalytic oxidation activity of the Pt-based catalyst, has high sulfur resistance, can still maintain high activity for the catalytic oxidation of CO in a 300ppm SO2 environment, is particularly suitable for the catalytic combustion of CO in steel tail gas, and has great industrial application potential and value.

This utility model belongs to the field of paper-aluminum composite rewinding technology, and provides a paper-aluminum composite rewinding machine device, including: a frame with a feeding end and a discharging end; a feeding mechanism movably mounted on the frame, including a paper tube and an aluminum tube, which can rotate relative to the frame so that the paper tube and aluminum tube are at the feeding end; a receiving mechanism movably mounted on the frame, including a composite tube, which can rotate relative to the frame so that the composite tube is at the discharging end; a guiding mechanism and several sets of driving mechanisms, which drive the paper tube, aluminum tube, and composite tube to rotate, and guide the paper roll of the paper tube and the aluminum foil roll of the aluminum tube to the composite tube simultaneously through the guiding mechanism. Compared with the prior art, the advantage of this utility model is that it can rewind paper rolls and aluminum foil rolls simultaneously, breaking through the limitation of traditional equipment that can only rewind a single material.

This utility model discloses a self-locking splicing assembly for aluminum composite panel curtain walls, including a mating seat fixedly connected to the surfaces of two supporting square tubes by tapping. A connecting joint is provided on the front side of the mating seat, and two aluminum composite panels are provided on the front side of the two supporting square tubes. The four rear corners of each aluminum composite panel are fixedly connected to the connecting joint by tapping. A locking assembly is provided between the mating seat and the connecting joint. The locking assembly includes a pin fixedly connected to the front side of the inner cavity of the connecting joint, and an insertion tube fixedly connected to the front side of the mating seat. The pin is inserted into the inner cavity of the insertion tube. This utility model, through the setting of the locking assembly, enables the mating seat and the connecting joint to self-lock, allowing the aluminum composite panels to be locked and installed on the front side of the supporting square tubes. Subsequently, with the cooperation of the mating plate, connecting plate, and first screw, the connection strength between the aluminum composite panels and the supporting square tubes is further strengthened, thus achieving the purpose of self-locking and secure installation.

This invention discloses a low-temperature production process for aluminum composite panels, characterized by the following steps performed in sequence: Plastic granule mixing step: adding plastic raw materials into a mixing device for mixing; granule extrusion step: heating and melting the mixed material through an extruder and extruding it; plasticizing step: plasticizing the extruded molten material; sheeting step: pressing the plasticized material into a plastic substrate; polymer film bonding step: bonding a polymer film to at least one surface of the plastic substrate; high-low temperature aluminum sheet composite step: bonding the substrate treated with the polymer film with aluminum sheets treated with high and low temperatures to form a composite panel; cooling and forming step: cooling the composite panel to set its shape; inspection and coating step: inspecting the cooled and shaped panel for quality and covering its surface with a protective film; trimming and shearing step: trimming and shearing the edges of the inspected and coated panel to a fixed length; finished product unloading step: stacking or packaging the trimmed and sheared finished products to complete the unloading process.

The utility model discloses an aluminum composite board raw material anti -blocking conveying mechanism, it includes: hopper, screw conveyor, cam, ram and motor, be provided with feeding port on the screw conveyor, hopper sets up on the feeding port, motor sets up the rear of screw conveyor, the tail of screw conveyor is provided with the drive shaft who is connected with motor, the cam sets up on the drive shaft, hopper one side is provided with the first guide pillar who is located above the cam, the first guide pillar bottom is provided with the gyro wheel who contacts with the top of cam, the first guide pillar top is provided with the horizontal pole who is suspended above hopper, the ram verticality sets up on the horizontal pole, the ram bottom extends to the feeding port down, through the rotation of drive shaft that motor drives, realizes the conveying of powdery raw material, drives the rotation of cam simultaneously, drives the up and down movement of gyro wheel, utilizes the ram in the lift of hopper and feeding port and carries out the dredging of powdery raw material, avoids the problem of jam.

This invention discloses a catalyst support material with hierarchical pores and its preparation method. The preparation method first treats starch under extraction conditions, then mixes the supernatant obtained after treatment with an aluminum source, an alkali source, and water for further processing to obtain a first material. Next, a silicon source is introduced into the first material stream to initiate a crystallization reaction. The reaction product is then separated, washed, dried, and carbonized to obtain the catalyst support material. This invention also provides a catalyst support material with hierarchical pores obtained using the above preparation method. The catalyst support material with hierarchical pores provided by this invention is a carbon-silicon-aluminum composite porous material, possessing macropore volume, micropore-mesopore-macropore hierarchical channels, exhibiting molecular sieve characteristics, and is suitable for use as a catalyst support, particularly for use as a support for heavy oil hydrogenation catalysts.