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63results about How to "High product strength" patented technology

Display device

A structure holds a display panel arranged inside a cabinet from the both sides by means of a holding member and a frame portion, which are supported by the circumferential surface section, so as to reduce thickness and frame width without using a bezel and to ensure rigidity. The cabinet is provided with a frame portion positioned on the display surface side of the display panel, a circumferential surface portion positioned at the periphery of the display panel, and a rear surface portion covering the other surface side of the display panel. A protruding section is arranged on the outer circumference side of the periphery of the display panel and the holding member to extend from the display surface side of the display panel toward the side opposite to the display surface, on an inner surface of the frame portion. A reinforcing section is arranged for connecting the inner circumference section of the protruding section with the inner surface section of a frame portion. The protruding section is provided with connecting sections, which are integrally formed with the inner surface of the frame portion, annularly arranged on the outer circumference of the display panel, and integrally formed at a plurality of positions on the protruding section in the circumference direction. The holding member has a section to be connected with the connecting section.
Owner:SHARP KK

Method for surface modification and high strength connection of magnesium alloy and aluminum alloy

The invention provides a method for surface modification and high strength connection of magnesium alloy and aluminum alloy. The method is as follows: carrying out surface modification on magnesium alloy and aluminum alloy by using the technology of magnetron sputtering and depositing a silver thin layer with micron thickness as a barrier layer and an active layer; and realizing high strength connection of the magnesium alloy and the aluminum alloy at a low temperature by using the technique of vacuum diffusion welding. The invention has the following advantages: coating modification enables surface oxidation resistance of the easily-oxidizable aluminum alloy and magnesium alloy to be improved; diffusion connection of the magnesium alloy and the aluminum alloy at a low temperature is realized for the first time by using the highly active silver thin layer; the silver thin layer changes the phase composition and microstructure of a magnesium/aluminum connection interface and prevents formation of a high-hardness brittle magnesium-aluminum intermetallic compound on the interface, and high strength Mg-Ag and Ag-Al intermetallic transition layers are formed and have a shear strength of 20 to 30 MPa, increased by nearly 4 times compared with a shear strength obtained through direct welding of magnesium aluminum. The method provided in the invention has the advantages of a simple process and high control precision; an obtained connecting piece has small deformation and residual stress.
Owner:WUHAN UNIV OF TECH

Hard alloy large pipe drawing mold and preparation method

InactiveCN101892408AHigh product strengthGuaranteed hardness and wear resistanceDrawing profiling toolsWaxCemented carbide
The invention provides a hard alloy large pipe drawing mold and a preparation method. The hard alloy large pipe drawing mold comprises the following raw material ingredients in percentage by weight: 14 to 20 percent of cobalt with a particle size of 1.0 to 3.0mu m, and the balance of tungsten carbide with a particle size of 4 to 5mu m. The preparation method comprises: raw material preparation, wet milling, drying, pressing, forming agent removal and sintering, wherein in the drying step, wax or butadiene rubber is used as the forming agent; the drying with the wax as the forming agent is spray drying; the forming agent remove is performed in a dewaxing and sintering integrated furnace or bell-type furnace; and the sintering is pressure sintering, and during the sintering, the temperature is raised within 11 to 13 hours till a liquid phase of the product appears, then about 40 mbars of high-purity argon is introduced into the furnace till the final sintering temperature of 1,390 to 1,400 DEG C, the temperature is kept for 50 to 60 minutes, then about 50 to 60 bars of high-purity argon is introduced, the temperature is kept continuously for 50 to 60 minutes, and the product is cooled to room temperature. The Rockwell hardness of the hard alloy large pipe drawing mold of the invention is more than or equal to 83HRA, the bending strength of the hard alloy large pipe drawing mold is more than or equal to 2,200MPa, and the density of the hard alloy large pipe drawing mold is 13.40 to 14.20g/cm<3>. And the hard alloy large pipe drawing mold has the advantages of high hardness, high wear resistance, uniform product performance, fragmentation resistance and long service life.
Owner:ZHUZHOU HARD ALLOY GRP CO LTD

Efficient and energy-saving type high temperature mortar for cement rotary kilns, and preparation method thereof

The present invention discloses an efficient and energy-saving type high temperature mortar for cement rotary kilns, wherein the components in the formula comprise, by weight, 40-55 parts of fused mullite, 6-15 parts of corundum fine powder, 2-10 parts of active alumina micro-powder, 2-10 parts of andalusite fine powder, 3-6 parts of kyanite fine powder, 0.5-3 parts of Y2O3, 0.5-2 parts of carboxymethyl cellulose, 0.1-1 part of sodium tripolyphosphate, 0.1-1 part of sodium hexametaphosphate, and 20-35 parts of a silicon-aluminum sol. The present invention further relates to a preparation method of the high temperature mortar. According to the present invention, the efficient compounding of the silicon-aluminum sol is used, and the mullite is easily generated during the high temperature sintering process, such that the structure is compact, the performance is stable, the adhesion strength is continuously improved along with the temperature increase, and the high temperature resistance and the thermal shock resistance are good; and the high adhesion strength is provided at the low temperature, and the adhesion strength is greater than the brick strength, such that the sufficient adhesion strength is provide so as to ensure no generation of bricking lining distortion, brick falling and other phenomena during the drying on the cement rotary kiln.
Owner:PINGXIANG KEXING FURNACE MATERIAL

Production device and production method of continuous fiber reinforced thermoplastic composite

The invention discloses a production device and production method of a continuous fiber reinforced thermoplastic composite. The production device of the continuous fiber reinforced thermoplastic composite comprises a yarn frame, a tension filament spreading device, a screw extruder, a supercritical carbon dioxide generation device, a fiber impregnation structure, a cooling pressure roller device and a traction device; the screw extruder communicates with the fiber impregnation structure, the supercritical carbon dioxide generation device communicates into a screw machine cylinder of the screwextruder, and supercritical carbon dioxide is injected into molten thermoplastic resin in the screw machine cylinder. The production device has the advantages that due to the fact that the supercritical carbon dioxide generation device is arranged, the supercritical carbon dioxide is injected to the molten thermoplastic resin in the screw machine cylinder, the viscosity of the molten thermoplasticresin is reduced, the molten thermoplastic resin can completely impregnate a continuous fiber bundle, after impregnation, the supercritical carbon dioxide reaches the normal pressure, the carbon dioxide is released into the air, the whole product property is not affected, and product quality is ensured.
Owner:江苏苏能新材料科技有限公司

Preparation process of high-performance precoated sand for complex casting and compression molding system thereof

The invention discloses a high-performance precoated sand for complex castings and a compression molding system thereof. According to the high-performance precoated sand for the complex castings and the compression molding system thereof, a binder is bisphenol A epoxy resin modified phenolic resin, meanwhile, nitrile rubber is added, the mechanical property, the bonding strength and the thermal stability of the obtained modified phenolic resin are greatly improved, and the dimensional stability of a cured product is excellent; the precoated sand prepared from the phenolic resin is high in strength and excellent in thermal stability, and when the sand is used for casting a high-precision casting with a complex structure, due to the high strength, the thermal stability and the dimensional stability, thermal stress generated by sand core expansion can be resisted, and casting cracks are prevented from being generated; montmorillonite, calcium stearate and alkali-free glass fibers are usedas a composite collapsing agent, so that the collapsibility, gas evolution, strength and thermal toughness of the precoated sand are remarkably improved, the compactness of the sand core is improved,the strength of a mold core is improved, and the casting is prevented from deforming and cracking; and in addition, the compression molding system utilizes sand mold preheating to preheat the precoated sand, so that the precoated sand is easier to press.
Owner:济南市平阴县玛钢厂

Rotational molding manufacturing method for double-layer all-plastic ship

InactiveCN105599195AHull stabilizationNot easily deformedCoatingsRotational moldingRaw material
The invention provides a rotational molding manufacturing method for a double-layer all-plastic ship. The method includes the process that after an inner mold body and an outer mold body are combined, plastic and other raw materials are added through a feed port, the mold bodies are heated and rolled, the plastic and other raw materials are melted, mixed and arranged on the inner walls of the mold bodies in a coating mode, and finally cooling and demolding are conducted; before the inner mold body and the outer mold body are combined, a supporting frame is fixed between the inner mold body and the outer mold body through a supporting frame fixing device, and the distance between the surface of the supporting frame and the inner walls of the inner mold body and the outer mold body is within the design thickness of a hull shell. Compared with the prior art, the supporting frame is arranged between the inner layer and the outer layer of the hull shell, the defects that no keel is arranged, and a rib hull is insufficient in strength are overcome, the hull is firm and stable and is not prone to deformation, re-modification worries are avoided, and the defects that labor and materials are wasted due to the fact that reinforcing ribs are additionally welded or a hollow interlayer is filled with foam materials are overcome.
Owner:王海平

Building concrete prefabricated part and machining method thereof

The invention discloses a building concrete prefabricated part and a machining method thereof. The building concrete prefabricated part comprises a base, a sliding cavity, a sliding plate, a limitinggroove, a sliding rod, a spring, a connecting plate, a connecting shell, an embedded shell, a sliding groove, a sliding block, a connecting rod, a fixed block, a first reinforcing rib, a second reinforcing rib, a filling cavity, a fixed bolt, a top plate and a limiting column. According to the building concrete prefabricated part and the machining method thereof, the structure is simple, the design is novel, under the action of an arranged damping mechanism, the overall damping effect of the device is improved, stable use of the prefabricated part is guaranteed, the use requirements of workersare met, and the operation is convenient; in use, under the action of an arranged concrete prefabricated mechanism, concrete can be conveniently filled, the overall manufacturing strength of the prefabricated part is improved, the overall practicability of the prefabricated part is improved, the prefabricated part is convenient for the workers to use, two prefabricated parts can be conveniently and stably placed under the action of an arranged placing mechanism, the mounting efficiency of the prefabricated part is improved, the mounting convenience is improved, and the practical value is high.
Owner:张家港市永茂住宅工业有限公司

A highly water-resistant waterborne polyurethane modified montmorillonite nanocomposite emulsion

ActiveCN108727554BOpen spacingGood compatibilityPolymer scienceEmulsion
The invention discloses waterborne polyurethane modified montmorillonite nanometer composite emulsion with high water resistance, and belongs to the field of organic-inorganic nanometer composite emulsion. Intercalation modification is carried out on montmorillonite by the aid of acid dissociation polyether amine. Interlayer sodium ions in the montmorillonite are substituted by ammonium ions, andaccordingly the interlayer spacing of the montmorillonite can be increased; groups with isocyanate reaction activity are led into the montmorillonite, then reaction is carried out on formed intercalation-modified organic montmorillonite solution and polyurethane to prepare the waterborne polyurethane modified montmorillonite nanometer composite emulsion which is waterborne polyurethane and montmorillonite nanometer composite emulsion. The waterborne polyurethane modified montmorillonite nanometer composite emulsion has the advantages that the waterborne polyurethane modified montmorillonite nanometer composite emulsion prepared by the aid of methods is good in dispersion stability, inorganic nanometer particles are led into the waterborne polyurethane modified montmorillonite nanometer composite emulsion, accordingly, the thermal and mechanical properties of waterborne polyurethane coatings can be obviously improved, and the barrier properties can be enhanced by montmorillonite lamellar structures; dispersion can be widely applied to the field of high-temperature-resistant food and medicine packages with excellent barrier properties.
Owner:JIANGNAN UNIV

Forming die of light weight and small size magnesium alloy cooling fan and processing method of inserts therefor

The invention discloses a forming die of light weight and small size magnesium alloy cooling fan and a processing method of inserts therefor. A male die of a die is internally provided with a core insert, a female die is internally provided with a cavity insert, and a die-casting cavity is formed between the male die and the female die; a circular thickened inner race forming space is formed in the male die, a plurality of insert grooves corresponding to the positions of fan blades of the fan are uniformly distributed outside the circumference of the thickened inner race forming space, the inserts are respectively embedded in all insert grooves, and blade forming structures are respectively formed at the two sides of each insert; an insert processing method comprises the following steps: cutting all the inserts into inserts of straight structures; processing an auxiliary template; installing the inserts of the straight structures on the auxiliary template to trim the inserts; discharging the processed inserts to be of arc-shaped structures which are consistent with the shapes of the fan blades; taking out the inserts after the completion of the processing. The forming die provided by the invention is beneficial for product forming and de-moulding, is high in fan forming precision and product intensity.
Owner:KUSN GUANGHE ELECTRONICS TECH

Polystyrene/polyethylene blended high-flame-resistance extruded sheet and production method thereof

The invention discloses a polystyrene/polyethylene blended high-flame-resistance extruded sheet. The polystyrene/polyethylene blended high-flame-resistance extruded sheet comprises a fresh polystyrene material, a recycled polystyrene material, polyethylene, styrene-sodium acrylate, magnalium hydrotalcite, decabromodiphenyl ether, silicon-based fire retardant, color master batch, benzoyl peroxide butyl ester, benzoyl peroxide, polyethylene grafted zinc maleate and foaming agent. The invention provides a production method correspondingly to obtain the extruded sheet with good flame resistance performance. The polystyrene/polyethylene blended high-flame-resistance extruded sheet and the production method thereof have the advantages that the recycled polystyrene material and the fresh polystyrene material are used jointly for producing the high-strength extruded sheet, so that production cost is reduced greatly; by dealing with the chain scission problem of the recycled material, the recycled material has better performance than ordinary waste; through addition of the auxiliary material polyethylene, proper solubilizing agent and other additives, product tenacity is improved, and the problems of embrittlement and easiness in breakage are solved; through addition of the decabromodiphenyl ether and the silicon-based fire retardant according to a certain ratio and combination with other additives, good flame resistance is achieved, and the oxygen resistance index can reach 48.
Owner:南京欧格节能环保科技有限公司

Rubber floater for dredging projects

The invention provides a rubber floater for dredging projects. The rubber floater for dredging projects is provided with a barrel, an anti-channeling plate, an end flange, a buoyancy layer, a pressure-bearing layer, an aging resisting layer, a flange plate and a suspension lug sequentially from inside to outside. The buoyancy layer is formed by compounding buoyancy EVA foam and pressure-resisting PE foam. The pressure-bearing layer is composed of a shoulder reinforcing plate, a nylon or polyester cord and a nylon mesh, and the nylon or polyester cord and the nylon mesh are integrally wound around and cover the buoyancy layer. The aging resisting layer is made of ethylene-propylene-diene monomer (EPDM) rubber modified by adding rutile type titanium dioxide whiskers. The corrosion resistance, impact resistance and elasticity of the rubber floater for dredging projects are improved, the service life of the rubber floater for dredging projects is prolonged, and the rubber floater for dredging projects is convenient to use, reliable, simple in production process and low in cost. The rubber floater for dredging projects is particularly suitable for connection of quick couplings and a first pipe at the bow portion for dredging projects, the effective operation of dredging projects can be ensured, and the project cost is reduced.
Owner:T RUBBER

Liquid state extrusion forming apparatus and method

The present invention provides a liquid state extrusion forming apparatus and a method. The liquid state extrusion forming apparatus comprises an upper movable cross beam, a lower movable cross beam, a punching head, a concave mold and an edge pressing gas discharge material discharge ring, wherein one end of the punching head is matched with the mold cavity of the concave mold, the other end of the punching head is connected with the upper movable cross beam, the edge pressing gas discharge material discharge ring is sleeved on the punching head and is matched with the punching head gap, and the edge pressing gas discharge material discharge ring and the concave mold are subjected to mold closing connection when the edge pressing gas discharge material discharge ring moves downward to the concave mold. According to the present invention, the high temperature metal liquid is subjected to extrusion forming through punching head pressing, pressure increasing and pressure maintaining; the work-piece falls down during the return travel of the punching head and the edge pressing gas discharge material discharge ring; and with the technical scheme of the present invention, the easy gas discharge structure is adopted, such that the problems of foaming, low metal liquid utilization rate and high production cost of the cold type die-casting forming are completely solved, the work-piece bottom repair technology can be completed in one time without addition of other bottom repair equipment, and advantages of high yield, high product strength, high production efficiency and the like are provided.
Owner:NINGBO WEISUER IND TECH DEV CO LTD

Processing assembly line and processing method of clutch part for vehicle

The invention relates to a processing assembly line and a processing method for a clutch part for a vehicle, and belongs to the technical field of automobile parts. The processing assembly line of theclutch part for the vehicle comprises a heating device, a forging device, a moving device and an edge cutting device, wherein the moving device comprises a moving assembly, a clamping assembly and aspraying assembly, the clamping assembly can clamp a processed product, the processed product can be transferred through the moving assembly, and the spraying assembly can be used for spraying a release agent to the mold. According to the processing assembly line and the processing method for the clutch part for the vehicle, the moving device is designed to be of a T-shaped structure to replace acommon split structure in the prior art, a clamping jaw clamps a product in the middle, nozzles are arranged at the two ends of the clamping jaw respectively and used for spraying a mold, it is implemented that transferring from a pre-forging product to a finish-forging product and painting are carried out synchronously, and the production efficiency is greatly improved; the forging device is of astructure with one mold base and multiple mold cavities, a forge piece only needs to be heated once for repeated forging without being heated again midway, energy consumption is reduced, and meanwhile the working efficiency and the product strength are improved.
Owner:NINGBO XUSHENG AUTO TECH CO LTD
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