106results about How to "Unlimited thickness" patented technology

The present invention discloses a hot-pressing carbonization strengthening method of timbers, which includes drying, planing, hot-pressing carbonization, cooling and other steps. The present invention applies a hot press as a timber-carbonizing device, and the timbers under the state of compression are processed by hot-pressing carbonization. The present invention is characterized in that the investment on carbonization devices is less, the carbonization process is simple, the production is safe, the production efficiency is high, the consumption of heat energy is little, and the production cost is low; moreover, the thickness of the carbonized timbers is not limited, the defects of the timbers, such as deformation, cracking, stiker stain, color difference, knot fall-off, etc., do not occur in the process of production, so the quality of products is high; not only is the size stability and noncorrodibility of the carbonized timbers improved, but also the density and mechanical property of the timbers is increased.

The invention discloses a machine-vision-based raster stereo image flat printer for realizing stereo printing on a raster plate matrix. The printer comprises a printing system, a visual sense measuring system and an error correction processing system, wherein the visual sense measuring system is used for obtaining the image of a raster plate on the printing system and detecting a position and an angle; the error correction processing system calculates the position deviation of the raster plate and the printed image according to the position and the angle and controls the printing system to perform corresponding position error correction according to the deviation so that a stereo image can be obtained by printing at an accurate position. By using the printer and the method provided by the invention, the problems of low printing precision, complicated operation, difficult automation realization and the like in a conventional raster stereo image printing process can be overcome, a method of machine visual sense measuring positioning and mechanical and visual sense auxiliary error correction is adopted so that the stereo image printing based on the raster plate can be realized, the material adaptability can be improved, the operation is convenient, and the printing precision is high.

Disclosed is a preparing method for casting an inlaid ceramic/metal wear-resisting compound liner. A chemical vapor deposition method is adopted to prepare uniform, continuous and high-purity metal activation coatings on ceramic monomers in various shapes, the kind and the structure of the coatings are changed, wettability between ceramic and metal in the compound process is improved, and the compound quality is improved; finally, through the lost foam casting technology, that is, ceramic reinforcements with the metal activation coatings deposited are fixed into a polystyrene foam model, and casting molding of molten metal is carried out; solid ceramic serves the reinforcements, the ceramic reinforcements are subject to reasonable structural design, and volume fractions and distribution of the reinforcements are controlled; and through forming of the activation coatings on the surfaces of the ceramic reinforcements, the interface combination condition between the ceramic and the metal is improved, operation is simple, easy to implement and low in cost, and the inlaid ceramic/metal wear-resisting compound liner which is good in comprehensive performance and capable of meeting various complex working conditions can be prepared.

The invention relates to a device and a method for dynamically preparing heterocavity bacterium cellulose materials. The device comprises a thermometer hole, an acid liquor and alkali liquor adding hole, a handle, a venting hole, a pH meter hole, a nutrition supplement hole, a rotating shaft, a fermentation tank, a motor, a water bath device and a mould. The preparation method comprises the following steps of: inoculating bacterium cellulose strains into a fluid nutrient medium to be propagated and then transferring to a fermentation device provided with specific shape moulds for later dynamic disturbance cultivation, and then obtaining the heterocavity cellulose materials after the cultivation step. The size and the shape of the heterocavity BC (Bacterium Cellulose) materials prepared by utilizing the invention are controllable, and the moulds of the fermentation device can be detached to be reused. The preparation method has the advantages of simple and convenient implementation, low cost and high production efficiency, and is suitable for industrialization production. The heterocavity BC materials can be widely applied to cavity organ succedaneums of artificial vessels, nerve fiber conduits and the like, and can be used as food packing materials, such as meat sausage wrappers, jelly wrappers and the like.

The invention discloses a rolling forming method of a metal plate component. The rolling forming method comprises the steps that (1) a wall plate part of a machine body is unfolded into a flat plate structure, and one side of the part is provided with a step; (2) a metal plate blank is prepared according to the unfolded flat plate structure; (3) a padding structure is designed, and the padding structure and the metal plate blank are complementary structures; (4) an elastic padding plate is prepared according to the designed padding structure; (5) the metal plate blank and the elastic padding plate are assembled, and a combined plate blank is formed; (6) rolling parameters of the combined plate blank are determined; (7) the combined plate blank is subjected to numerical control rolling forming; and (8) the metal plate component is extracted. The rolling forming method has the advantages that the precise forming of the component in the great-step-ratio and variable thickness structure can be realized, in addition, the limitation of the thickness and the intensity of processed parts is avoided, meanwhile, the rolling forming method can be utilized for replacing the traditional manufacture method of carrying out chemical milling after forming on the wall plate part of the machine body, the manufacture precision of products is improved, and the environment pollution caused by the chemical milling is also avoided.

The invention relates to an atom gas cavity device based on an MEMS technology and a manufacturing method thereof. The atom gas cavity device has a typical sandwich structure and is of a cavity structure formed by defining a silicon wafer with through holes and two glass sheets in a bonding mode. The cross section of each through hole is a parallelogram and is formed by a monocrystalline silicon slice of an N(100) type through silicon anisotropism wet etching, and the side walls of each through hole are crystal faces{111} of the silicon wafer. The two glass sheets and the silicon wafer with the through holes form an atom gas cavity after silicon-glass anodic bonding. The atom gas cavity device can be used for systems of atomic clocks, magnetometers and the like, the distance between two reflectors in the cavity can be increased easily through changing of size design of the atom gas cavity, accordingly, the interaction space lengths between lasers and atom gas are increased, the signal to noise ratio of coherent layout imprisoned effect signals is enhanced, and improvement of stability of a system is facilitated.

The invention provides a method for physically dyeing wood, which belongs to the technical field of wood processing. The method for physically dyeing the wood is to heat the wood and control temperature and time for heating to dye the wood. The method for physically dyeing the wood has the characteristics of small equipment investment, small production field, simple process and short treatment period; moreover, no pollution is generated during dyeing treatment, with safe production and high production efficiency; besides, the dyeing process does not require water vapor, so that the method has the advantages of no water consumption, small heat energy consumption, energy conservation, low production cost and the like during the process of dyeing treatment. Furthermore, the thickness of dyed wood is not restricted, and the method overcomes the defects of deformation, cracking, color difference and the like for the wood during production process, and has high product quality; and dyed wood has dimension stability, improved noncorrosibility and wide application range.

The invention belongs to the field of the preparation of an MOF membrane on a novel membrane growth substrate, and concretely relates to a method for preparing the MOF membrane on an acidified polymethyl methacrylate membrane substrate. The method has the advantages of membrane formation on surfaces of various carriers, expandable application range of the MOF material and the like.

The invention relates to a method for producing a bimetal composite material by adopting a cold core continuous casting and rolling process. The method is characterized by comprising the following steps of: using an inlet pinch and guide device to feed a cold core base material into a groove of a casting and rolling roller, continuously pouring a molten-state covering material in a ladle into an annular crystallizer constituted by the base material and the groove of the casting and rolling roller, driving the casting and rolling roller, continuously and uniformly coating the molten-state covering material on the surface of the cold core base material, and arranging a secondary cooling device and an outlet pinch and guide device on the outlet side so as to realize cold core continuous casting and rolling composite molding of a bimetal composite pipe or rod. The method has the advantages that the bimetal composite pipe or rod produced by the technological method has the advantages of low requirements on size and shape precision of a stock, no need of pre-assembly, high finished product rate, high metal utilization rate, no limitations on length and thickness of a covering layer of a product, a wide range of specifications of the product and the like, and the method is of a high-efficient production technological method. The product can be directly used as a finished product or be used as the stock for pipe rolling, cold drawing and other process steps.

The invention discloses a deep processing production technology of a sintered metal matrix friction sheet and a sintered metal matrix friction sheet prepared by the production technology. The sintered metal matrix friction sheet comprises a steel backing layer and one or two friction layers. The production technology includes the steps of powder spread, primary sintering, primary rolling, secondary sintering, secondary rolling, annealing treatment, and stamping to obtain the sintered metal matrix friction sheet. The defects that prior sintered metal matrix friction materials are large in production technology investment, complicated in processing, low in production efficiency, unstable in product quality, uncontrollable and the like are overcome, the method can be applicable to the production of iron-based and copper-based friction materials, the thicknesses of the steel layer and the friction layers can be controlled respectively, the control accuracy is high, the finished product qualities of the friction sheets are stable, the device investment is small, the operation is simple, and the production efficiency is high.

The invention belongs to the inorganic non-metallic material field, disclosing a radiation proof composite paint formulation. The radiation proof composite paint of the invention is formed by the following compositions, 15-25wt% ferric oxide whose grain size is 0.1mm-1.3mm, 2.7-8wt% tungsten ore powder whose grain size is 0.1mm-0.3mm, 4-10wt% rectorite ore whose grain size is 100-200 mesh, 40-50wt% barium sulfate whose grain size is 0.1mm-2.0mm, 0.7-1.3wt% ferric sulfate whose grain size is 1.0mm-1.5mm, 20-50wt% cement and 0.5-0.9wt% borax. The radiation proof composite paint of the invention has the advantages of environmental protection, convenient construction and firm bonding.

The invention relates to an atom gas cavity device with double reflectors and a groove-shaped structure and a manufacturing method of the atom gas cavity device. The atom gas cavity device is composed of a cavity body structure defined by a silicon wafer and a glass sheet in a bonding mode, wherein the bottom of the silicon wafer is provided with one reflector, the silicon wafer is provided with a groove, and the other reflector is arranged inside the glass sheet. The cross section of the groove is of an inversed trapezoidal shape structure, and is formed by a 100-type monocrystalline silicon wafer in a silicon anisotropic wet etching mode. The side walls of the groove are 111-type crystal faces of the silicon wafer. The interior of the glass sheet and the bottom of the groove of the silicon wafer are respectively provided with one reflector, and the reflectors are used for reflecting laser many times. The atom gas cavity device can be used for atomic clocks, magnetometers and other systems, laser is reflected many times between the double reflectors, the space length of interaction between laser and atom gas is increased, the signal-to-noise ratio of coherent population trapping signals is increased, and system stability can be improved.

The invention relates to a single-layer ferromagnetic material with magnetic moment flipping driven by current and application thereof. The single-layer ferromagnetic material is a thin film with thickness of 1-100nm, has strong spin-orbit coupling action, generates spin moment after current is introduced, and flips self-magnetic moment of the single-layer ferromagnetic material by spin moment. The invention utilizes current to generate spin moment in monolayer ferromagnetism, and inverting the magnetic moment of the single-layer ferromagnetism by using the spin moment, The device can be applied to magnetic random access memory and spin logic device, and the device based on the technology of the invention can have unlimited thickness so as to have higher thermal stability, that is, nonvolatility, and simplify the structure and preparation process of the device in application, and has great cost advantage.

A production method of a totally-coated metal composite pipe is technically characterized by including the steps of hermetically nesting a titanium tube, a steel tube and another titanium tube, connecting titanium heads to two ends of the steel tube in a threaded manner, and welding the inner titanium tube and the outer titanium tube on the titanium heads to ensure the steel tube is completely coated with titanium integrally; performing rolling, combining, rounding, straightening, deheading and sizing to obtain a finished product. According to the method, the totally-coated metal composite pipe is manufactured by a cold-rolling method. In terms of oil exploitation, chemical industry, fine chemicals, heat exchangers and marine pipelining, the composite pipe is completely coated with the titanium to keep properties of the titanium, product strength is guaranteed by using a low-cost base steel tube as a structural portion, the titanium heads at two ends can be connected by welding, and a screw thread can also be made for mechanical connection. The totally-coated metal composite pipe has the advantages such that the performance is high, the cost is low, the service life is long, and applicable range is wide. The production method is insusceptible to seasons and free of environmental pollution, and production scale and product specification are controllable.

The invention belongs to the technical field of filter devices and discloses a high-strength high-performance filter element. The high-strength high-performance filter element comprises upper end covers, lower end covers, a central pipe and a filter cartridge arranged at the periphery of the central pipe; the upper end covers and the lower end covers are arranged on the upper and lower ends of the filter cartridge and the center pipe respectively; the filter cartridge comprises a waved filter layer and waved metal nets which are arranged on the inner and outer sides of the waved filter layer; the filter layer is formed by orderly stacking a glass fiber felt layer, a glass fiber filter paper layer and a non-woven cloth layer; the non-woven cloth layer is close to the central pipe; the body of the central pipe is formed by narrow steel strips which are spirally coiled in a staggered manner, wherein the narrow steel strip of the upper layer is fixedly connected with the narrow steel strip of the lower layer, and a squeezing hole is formed in the length direction of the narrow strips. The high-strength high-performance filter element is reasonable in design and simple in structure; the filter element has high strength and safety, and therefore, the filtering fineness of a filter is guaranteed, and moreover, the filtering efficiency of the filter is well improved and the service life of the filter is prolonged.

The invention relates to a method for preparing a waved stripe bamboo board stuck by side bamboo strips, comprising the following steps of: pretreating fresh bamboo, blanching, vulcanizing or dyeing, fixing width and thickness, drying after dipping gum or airing after coating gum, hot pressing, cooling, storing at constant temperature and cutting into finished products. The hot-pressing process comprises the following steps of: standing and stacking the bamboo strips with the fixed width and thickness into a bamboo board blank with needed width, feeding the bamboo board blank into a hot-press which pressurizes from above and supports the bamboo board blank by a waved curved-surface steel press strip from two side surfaces, and pressing the bamboo board blank stuck by side waved bamboo strips. The thickness of raw materials of the waved stripe bamboo board is not limited, various bamboo raw materials can be sufficiently used without beingcut into thin bamboo sheets. The method can save electricity of 20 percent and manpower of 20 percent; and the waved stripe bamboo board has high strength, resists abrasion and environment protection, can be applied to technical products of floors, furniture, outer shells of household appliances, vases, and the like, and can achieve the effect of using bamboo to replace wood, plastic and steel.

The invention discloses a heap sprayed concrete rapid wall constructing method for coal mine underground, and belongs to the technical field of constructing a concrete wall and concrete spraying in the coal mine underground. The heap sprayed concrete rapid wall constructing method for the coal mine underground can solve the problems that an existing method for constructing the concrete wall in thecoal mine underground is low in speed, the final strength cannot meet the design requirements, no effective support is formed for a roof and the application range is small. A novel method for rapidlyconstructing a concrete wall for the coal mine underground comprises the steps that sand-gravel materials, cement, a JCT-1 shotcrete admixture and an accelerating agent are mixed uniformly in a certain proportion in a wet state and then loaded into an injection machine, and compressed air is used for transporting the wet mixture to a spray nozzle along a pipeline to be mixed with water and sprayed at a high speed to construct the wall. According to the heap sprayed concrete rapid wall constructing method for the coal mine underground, the wall is easy to form, initial setting time is short, initial strength of heap spraying forming is high, no slip and falling deformation is caused, and the thickness of the wall is not limited.