46 results about "Hot pressing" patented technology

The invention relates to a magnesium calcium fire-proof plant fibre board and the preparation method thereof, and consists of 1 to 2.4 parts of abio-glue gelled material, 1.5 to 2.5 parts of plant fibres, 0.025 to 0.03 parts of cymene sodium silicate and 1.4 to 1.8 parts of stirring liquor. The invention adopting the method of heat pressing the half dry feed comprises the steps of preparation of material, stirring of the mixture feed, paving and pre-pressing, heat pressing and moulding and incising with fixed size. The products not contain formaldehyde and has the advantages of environmental protection, no poison, harm and crack, light weight and heat preservation, shrinking and small swelling modulus. The invention has good fire-proofing, water-proofing, antisepsis, moth-proofing, and weathering resistance, thereby thoroughly eliminating abuse reversing salting of the magnesium products. Moreover, the invention has the characteristic of the abio-material and combines the characteristics of wood including fine texture, strong natural tactile sensation, easily planning, cutting, fixing and sticking. The invention which has simple production technique and fast shaping speed needs not to be preserved and aired and has high intensity of breaking resisting and even density and not distort. The invention is applicable to the industries such as constructional material, package, transportation, decorating, etc.

The invention relates to a thermal storage type vacuum tube which comprises a tubular glass outer shell, an open end of the glass outer shell is connected with a glass flange, the glass flange is connected with a metal end cover through the hot-pressing sealing technology, a protective cap of an exhaust nozzle is arranged at the other end of the glass outer shell, an exhaust nozzle which is integrally molded with the glass outer shell is arranged in the protective cap of the exhaust nozzle, a metal material box body is arranged in the glass outer shell, a solar energy selective coating is arranged on the outer surface of the box body, space between the glass outer shell and the box body is pumped into vacuum state through the exhaust nozzle, a water inlet and a water outlet are respectively formed on the metal end cover, the water inlet and the water outlet are communicated through a heat exchange tube arranged in the box body, and a working medium in the box body adopts solid-liquid phase change materials with phase change temperature of 60DEG C-80DEG C. The working medium in the box body adopts the solid-liquid phase change materials, when the solid-liquid phase change materialsachieve the phase change point, the materials are converted to liquid state from solid state, and a large amount of heat is absorbed, and the temperature of the phase change materials can be basicallymaintained constant. The thermal storage type vacuum tube can be widely applied in a variety of solar water heaters.

The invention relates to a high-temperature resistant heat insulating material using vermiculite as a main raw material and a method for manufacturing the same, which belong to the field of heat insulating materials. The method is characterized by comprising the following steps: firstly, quickly heating and swelling commercially available primary minerals of the vermiculite with large, medium and small diameters at a temperature of between 500 and 900 DEG C; secondly, mixing the swelled vermiculite with an aluminum dihydrogen phosphate bonding agent, aluminum hydroxide or rho-alumina, and nano-silica according to the requirement of weight percentage; stirring the mixture evenly in an airtight stirring machine and then filling the mixture into a die; after prepressing, performing hot pressing and shaping on the mixture; and after discharging, finishing the product properly to obtain the high-temperature resistant heat insulating material using the vermiculite as the main raw material. Through grain composition, density control, addition of the nano-silica and application of the high-temperature resistant bonding agent, and using small grained primary minerals of the vermiculite with large yield and low cost, the high-temperature resistant heat insulating material and the method solve the bottleneck problems of insufficient supply of large grained primary minerals of the vermiculite, and the improvements on the strength and the service temperature of the vermiculite heat insulating material at the same time, thus the material can keep a low coefficient of thermal conductivity under a high temperature condition.

Th invention relates to a preparation method of an environment-friendly ecological board, and belongs to the technical field of decorative materials. The method comprises the following steps that 1, a hindered amine light stabilizer is dispersed into melamine modified resin, and then first-time dipping treatment, first-time drying, second-time dipping treatment and second-time drying are sequentially conducted on woodgrained paper in an obtained mixture to prepare a high color fastness facing layer, wherein a light stabilizer dispersion technology comprises the steps that 100 parts by mass of the melamine modified resin and 5-20 parts by mass of the light stabilizer are weighed, and the light stabilizer is added to the melamine modified resin during stirring; 2, veneer compounding is conducted on the high color fastness facing layer and a buffer balance layer for hot pressing; 3, the upper surface and the lower surface of a substrate layer are coated with an environment-friendly adhesive, and boards prepared in the second step are compounded on the upper surface and the lower surface, coated with the environment-friendly adhesive, of the substrate layer for prepressing; 4, the environment-friendly ecological board is prepared through hot pressing. The decorative board has the advantages of being low in formaldehyde emission amount and high in grade of color fastness grade to light.

Disclosed is a simple method for manufacturing pure copper plates which does not involve cold forging or cold pressing after hot forging or hot pressing, or heat processing thereafter; also disclosed is the finely uniform pure copper plate which is obtained by said method, has low residual stress and excellent processability, and is especially suitable as a copper sputtering target material. Pure copper ingots of purity no less than 99.96 wt% are heated to 550-800 DEG C, and after hot pressing with a total press rates of 85% or more and a temperature at press completion of 500-700 DEG C, are quenched at a cooling rate of 200-1000 DEG C/min until the temperature reaches 200 DEG C or less from the aforementioned temperature at press completion.

The basic purpose of the present invention, being a method of manufacturing a hot press member with excellent corrosion resistance, is to provide such a method of manufacturing a hot press member with excellent liquid metal brittleness resistance in which liquid metal brittleness cracking due to zinc in a plating layer entering the steel sheet does not occur. This method of manufacturing hot press member is characterized in that a plated steel sheet is provided with a substrate steel sheet and a plating layer, the latter of which is formed on said substrate steel sheet, contains 10-25 mass% of Ni, the remainder being of Zn and unavoidable impurities, and has an adhesion amount per side of 10-90g/m2, and in that said plated steel sheet is heated to 850-950DEG C, and hot press forming is initiated when the temperature of the plated steel sheet after heating is 650-800DEG C.

The invention discloses a siphon circulation, contraflow heat regeneration and vapor compression distillation device, which utilizes siphon circulation to replace a circulation pump so as to drive feed liquid, and condensation latent heat can be cyclically recovered, so that the investment and the power consumption of the circulation pump are saved; contraflow heat regeneration and climbing-film evaporation of the feed liquid are commonly driven by the siphon circulation and outer pressure of a pipeline, so that evaporation latent heat is provided for generating secondary steam; large-temperature rise and small-temperature difference contraflow heat regeneration is adopted, so that not only is shell-pass evaporation pressure increased to a large extent, but also tube-pass condensation pressure is reduced to a large extent, the pressure difference, the emission and the power consumption of a water vapor compressor are reduced to a large extent, and the power consumption per ton water is reduced to 5 to 8 kW*h/t to a large extent; the falling head of the siphon circulation, contraflow heat regeneration and vapor compression distillation device is fully utilized, so that a condensed water discharging pump and a feed liquid discharging pump are omitted.

The invention provides a SiC whisker synergistic silicon nitride particle toughened alumina-based ceramic cutter material and a preparation process thereof. The preparation method comprises the following steps: preparing SiC whiskers and a sintering aid into slurry, uniformly mixing the slurry with Al2O3 and Si3N4, drying to obtain composite ceramic powder, pre-pressing the composite ceramic powder into a green body, and carrying out vacuum hot-pressing sintering on the green body to obtain the alumina-based ceramic cutter material, wherein the heating process of the vacuum hot pressing sintering comprises the following steps: heating to 190-210 DEG C at a first heating rate, keeping the temperature, heating to 1350-1450 DEG C at a second heating rate, keeping the temperature, heating to 1500-1650 DEG C at a third heating rate, and keeping the temperature; in the heating process of vacuum hot-pressing sintering, the green body is firstly kept pre-pressed, when the temperature rises to1050-1150 DEG C, the pressure of the green body is started to be increased and kept, and when the temperature continues to rise from 1350-1450 DEG C, the pressure of the green body continues to be increased until the temperature rising is ended, and the pressure is kept.

The invention discloses a manufacturing method of a bamboo-based heterochromous laminated decorative plate. The manufacturing method comprises the following steps of (1) changing color of a bamboo bundle; (2) drying the dyed bamboo bundle; (3) processing a single plate of the bamboo bundle; (4) gumming and drying the single plate of the bamboo bundle; (5) assembling: laminating and assembling the single plate of the bamboo bundle which is gummed and dried, and obtaining a plate blank by adopting hot pressing or cold pressing after assembly, wherein the plate blank at least contains two different colors of the single plate of the bamboo bundle; and (6) processing the decorative plate. Compared with a traditional bamboo-based decorative material, the bamboo-based heterochromous laminated decorative plate obtained by adopting the manufacturing method is laminated and hot-pressed into a square by adopting the dyed bamboo bundle which is woven, so that continuous production of materials is conveniently realized, and compared with existing reconstituted bamboo materials, the material density uniformity is obviously increased. In addition, through color change, bamboo is colorful, the decorative effect of bamboo products can be increased, and the added value of the products is increased.

The invention relates to a manufacturing method of a rare earth metal PrNd rotary target. The manufacturing method comprises the following steps: preparing rare earth metal PrNd powder, the average grain size D50 of which is 40-70[mu]m, by means of a hydrogenation dehydrogenization method-crushing method; in a protective atmosphere, filling a graphite mold of a vacuum hot pressing sintering furnace with the powder; in the protective atmosphere, carrying out hot press molding to obtain a rare earth metal PrNd target blank, wherein the hot pressing temperature is 760-900 DEG C and the molding pressure is 19-30MPa, and maintaining the temperature and pressure for 1-2 h; and machining the molded target and welding a copper or stainless steel back target. The target provided by the invention isused for improving the magnetic performance of a NdFeB magnet by grain boundary diffusion PrNd, the use level of rare earth elements can be reduced greatly, and the manufacturing cost of the high performance NdFeB magnet is saved.

The invention belongs to the technical field of electrochemical materials, and particularly relates to a preparation method of an electromagnetic shielding heat dissipation film. The method comprisesthe following steps of obtaining carbon nanotube films and graphene films; after at least one layer of the carbon nanotube films and at least one layer of the graphene films are alternately laminated,performing hot pressing treatment in a protective gas atmosphere of 2,800-3,000 DEG C for 8-10 hours to obtain a laminated function layer of carbon nanotubes and graphene; obtaining a base layer, andattaching the laminated function layer to one side surface of the base layer by using an adhesive; and obtaining a heat conduction adhesive, and applying the heat conduction adhesive to the other side surface, away from the base layer, of the laminated function layer to form a heat conduction adhesive layer, and obtaining the electromagnetic shielding heat dissipation film. The preparation methodof the electromagnetic shielding heat dissipation film is simple in process, easy to operate and convenient for industrial production and application.

The invention discloses a hot pressing edge banding machine and an edging banding method thereof. The hot pressing edge banding machine comprises a workbench (1); supporting legs (2) are respectively arranged at two sides of the workbench (1); a transverse beam (3) is arranged above the workbench (1); two ends of the transverse beam (3) are respectively connected with the two supporting legs (2); pressing-down cylinders (4) are arranged on the transverse beam (3); a lower platen (5) is arranged between the transverse beam (3) and the workbench (1); the pressing-down cylinders (4) pass through the transverse beam (3) and are connected with the lower platen (5); and a hot pressing device (23) is arranged at a right side of the workbench (1) and is connected with the supporting legs (2) through a rotating device (24). Compared with the prior art, the technology employed in the invention enables integral recombination to be carried out; besides, the processing speed is fast. Moreover, the edge banding machine provided in the invention has advantages of high product qualification rate, small equipment volume, convenient process control, subtle structure, and high security coefficient and the like.

The invention belongs to the technical field of metal wire drawing die manufacturing, and relates to a self-lubricating hard alloy wire drawing die and a preparation method thereof. According to the self-lubricating hard alloy wire drawing die, a base body material is prepared from the components: a tungsten-cobalt hard alloy phase and a lubricating phase, and the self-lubricating effect of drawing processing can be achieved. The self-lubricating hard alloy wire drawing die is prepared through processes of carrying out hot pressing sintering to form a blank, carrying out perforating by adopting high-energy beams, carrying out precise and fine grinding and finishing and the like. The wire drawing die can be widely applied to dry-drawing processing of nonferrous metal wires, rapid abrasion of a drawing working surface of the die caused by the low hardness of a hard alloy bonding phase can be effectively ameliorated, and therefore the service life of the wire drawing die is remarkably prolonged, the wire drawing processing production efficiency is remarkably improved, the processes are simple and convenient to use, and the wire drawing die is green and environmentally friendly.

The invention relates to metallurgical materials, in particular to a preparation method of a high strength, high modulus and high plasticity ceramic particle aluminum-based composite material. Siliconcarbide particles with different particle sizes are uniformly mixed due to ball milling, and then are filled into a mold; the mold is put into a heating furnace, and the mold is uniformly heated according to a corresponding temperature rising speed; an aluminum alloy is placed into an aluminum smelting furnace to be melted and cast, and vacuumizing and stirring are performed; the heated mold is moved to a hot press platform, and an aluminum solution in the aluminum smelting furnace is injected into the mold; a hot press is adjusted to a certain pressure and pressure maintaining time, hot pressing is performed, and then demolding is performed; and casts after demolding are forged so that the high strength, high modulus and high plasticity ceramic particle aluminum-based composite materialis obtained. The strength, the elastic modulus, the plasticity and the like of a produce prepared through the method are improved.

The process of forming artificial joint of nanometer bioceramic relates to nanometer ceramic material forming technology, and aims at solving the problem of forming complicated shape ceramic product. The process includes the following steps: 1. hot pressing and sintering composite Al2O3/ZrO2 powder or ZrO2/HAP powder to prepare nanometer ceramic block; and 2. closed die forging to form ceramic product at high temperature. By means of the twice forming process, the present invention can form ceramic part of complicated shape. The present invention has the advantages of simple forming process, easy manufacture of mold, low cost, etc.

An adhesive used for moisture-proof fiberboards is disclosed. The adhesive comprises following raw materials by weight: formaldehyde, urea, resorcinol, oxidized starch, flour, polyvinyl acetate, an acid solution and an alkali solution. Beneficial effects of the adhesive are that comprehensive modification is performed through adding a small amount of the oxidized starch, the polyvinyl acetate and the resorcinol, curing time of the adhesive in fiberboard hot pressing is shortened, adhesive strength is increased, obvious characteristics including enhanced waterproofness, high mechanical strength, good dimension stability, and the like of the fiberboards are achieved, and problems that fiberboards under high-moisture environments are liable to expand and deform and strength is poor, and the like are overcome.

The invention discloses a manufacturing method of a titanium-steel composite board and a titanium-steel inner container cup. The method comprises the following steps: purifying the surfaces of a stainless steel plate and a titanium plate, oppositely stacking the composite surfaces of the steel plate and the titanium plate together, carrying out explosive cladding or hot-pressing cladding to obtain the composite board, and rolling the composite board to be thinner through multiple times of cold rolling and annealing. The titanium-steel composite board has the advantages that explosive cladding of the titanium layer and the steel layer is conducted, the whole structure is firm, the titanium-steel composite board not only has the corrosion resistance of titanium, but also has the excellent weldability, formability and thermal conductivity of steel, the usage amount of titanium is greatly reduced, the thickness of the composite board is reduced through multiple times of cold rolling and annealing processes, the thickness of the titanium-steel composite board is greatly reduced, and the titanium-steel composite board can be used for machining cups, bowls and other utensils.

The invention provides an automobile air conditioner filter (11) used for an automobile air conditioner (1), wherein the automobile air conditioner filter comprises at least three filter layers including a first filter layer (111), a second filter layer (1112) and a third filter layer (113). The second filter layer is arranged between the first filter layer and the third filter layer, the first filter layer, the second filter layer and the third filter layer are connected with one another in a hot-pressing connection manner, and the second filter layer comprises an adsorbing material at leastpartially made of active carbon fiber. The invention also provides a method (2) for manufacturing the automobile air conditioner filter (11). The method comprises the following steps: carrying out hot-pressing connection treatment (201) on the first filter layer (111), the second filter layer (112) and the third filter layer (113) so as to form a filter base material; carrying out pleating treatment (202) on the filter base material which is hot-pressed and connected together; and carrying out cutting treatment (203) on the filter base material through pleating treatment.

The invention provides a method for manufacturing a light-weight fiberboard. The method for manufacturing the light-weight fiberboard comprises the steps of debarking wood, chipping and screening to obtain wood chip; grinding the wood chip to respectively obtain coarse fibers and fine fibers; sequentially overlapping and laying fine fibers, coarse fibers and fine fibers to obtain a semi-finished fiberboard; sequentially performing prepressing, hot-press forming, cooling and conditioning to the semi-finished fiberboard to obtain the light-weight fiberboard. By using the method provided by the invention, the problem that the mechanical property of the fiberboard is caused to be decreased because the amount of used raw materials per unit volume is reduced in the prior art is solved and the obtained light-weight fiberboard is a three-layer light-weight fiberboard, wherein an upper surface layer and a lower surface layer are formed by the fine fibers and a core layer is formed by the coarse fibers. Therefore, under the situation that the total unit volume of the fiberboard is unchanged, by properly reducing the density of the core layer, the physical and mechanical properties of the fiberboards can be guaranteed and thereby a light-weight board which has a wider application range is produced.

The invention discloses a method for preparing a Cu2Se thermoelectric material. According to the method, the technological process of wet ball milling, microwave synthesis, wet ball milling and rapidhot pressing is utilized to rapidly prepare the Cu2Se block material. According to the method, the raw materials are uniformly mixed, the heating rate is high, the synthesis time is short, the processoperation is simple, the energy consumption is low, the production cost is low, the production period is short, the equipment requirement is simple, the high-purity impurity-phase-free Cu2Se block material can be obtained, the preparation efficiency of the thermoelectric material is greatly improved, and the method is suitable for large-scale production and preparation.

The invention provides a plasma processing chamber and a base manufacturing method therefor, and the chamber comprises a cavity. A base is disposed below the cavity and used for carrying a substrate. Reaction gas enters into the cavity from the top of the cavity, and is activated into plasma under the action of radio frequency heat, thereby achieving the processing of the substrate on the base. The method comprises the following steps: providing a base body and setting a cooling liquid channel on the base body; employing hot pressing to enable a first insulating layer to be pasted at the upper part of the base body, wherein the interior of the first insulating layer is provided with a heating apparatus; and employing hot spraying to make anticorrosion coating layer at the periphery of the base body. The chamber and method can prevent arc pollution and metal pollution, and cannot cause the melting of a material layer because of the pressure and temperature difference in a manufacturing process.

The invention discloses an in-situ synthesized Cr3C2 reinforced Ni-based composite material and a hot-press preparation method thereof. Cr2AlC (10-40 vol%) ceramic powder and Ni powder are used as rawmaterials. Under high temperature environment, Cr2AlC dissociates, Al atoms diffuse with part of Cr atoms, in-situ synthesized Cr3C2 ceramic particles are evenly distributed in a matrix, meanwhile, Cr atoms and Al atoms are dissolved in a Ni matrix to form gamma-Ni, and when Cr, Al reaches a certain amount, a precipitated phase Ni3(Al,Cr), that is, a gamma'phase is precipitated out. The masses ofthe Cr2AlC powder and the Ni powder are calculated and weighed, after ball milling and mixing, the Cr2AlC powder and the Ni powder are poured into a hot-press mold for hot-pressing sintering, the sintering temperature is 1,200-1,400 DEG C, 25MPa pressure is applied when the temperature is 1,100-1,200 DEG C, the insulation and pressure maintaining is performed for 30min, pressure relief is performed after the temperature is lowered to 500-600 DEG C due to furnace cooling, a sample is taken up when the temperature is lowered to below 80 DEG C, and the in-situ synthesized Cr3C2 reinforced Ni-based composite material is obtained. The material has comprehensive properties such as high strength, high hardness, wear resistance, corrosion resistance and good high temperature performance, and canbe applied to aerospace, military industry, transportation and other fields.

The invention provides a chitin@MXene@Ni chain thin film material and a preparation method and application thereof. According to the chitin@MXene@Ni chain thin film material, chitin, few layers of MXene and Ni chains serve as raw materials. The thin film material is prepared from chitin, MXene and Ni chains with the mass percentage of 50 to 20-30 to 30-50, and a chitin@MXene@Ni chain thin film is finally obtained through suction filtration and hot pressing. The preparation method of the composite material has the characteristics of stability, controllability, simplicity and easiness in operation, and the material has the characteristics of thin thickness and strong electromagnetic wave shielding capability. Therefore, the invention provides a novel thought for design and synthesis of industrial production of electromagnetic wave shielding materials.

The invention discloses an electrochemical device and a diaphragm thereof. The diaphragm of the electrochemical device includes a base film and coatings formed on both side surfaces of the base film,wherein the coatings comprise a ceramic coating and a thermal bonding coating, the ceramic coating and the thermal bonding coating which are formed on same sides of the base film do not coincide, andthe thermal bonding coating formed on one side of the base film does not coincide with projection of the thermal bonding coating formed on the other side of the base film on the base film. The diaphragm is advantaged in that after the diaphragm and an electrode plate are subjected to hot pressing, the electrode can be effectively fixed, so production efficiency of a laminated battery core preparation process is improved, moreover, the diaphragm further has advantages of low air permeability value, high conductivity, simple production process and the like.

The invention provides curved surface fitting equipment and a fitting method of the curved surface fitting equipment. The equipment comprises a rack, a control cabinet arranged at the bottom of the rack and a worktable arranged at the top of the control cabinet, wherein the worktable is provided with a rotary table and a vacuum hot pressing device; the rotary table is provided with a plurality of containing grooves for storing hot pressing dies; the control cabinet is internally provided with an electric control device; a driving assembly is arranged at the bottom of the rotary table; the vacuum hot pressing device and the driving assembly are connected to the electric control device; the hot pressing dies are rotated to the lower side of the vacuum hot pressing device through the rotation of the rotary table; vacuum hot pressing fitting is carried out on the hot pressing dies through the vacuum hot pressing device. According to the curved surface fitting equipment and the fitting method of the curved surface fitting equipment, provided by the invention, the fitting precision is high; defects including fitting folds, indentation, pressing damages and water ripples, air bubbles and the like are avoided; a whole hot pressing process is automatically controlled; the operation time is greatly shortened and the production yield and the production efficiency are improved.