62results about How to "Shrinkage volume" patented technology

An imaging lens module includes an imaging lens assembly and a first optical component. The imaging lens assembly has an optical axis and includes a lens element. The lens element includes an effective optical portion, which is non-circular and disposed on a center of the lens element. The first optical component has a non-circular opening hole. The effective optical portion of the lens element of the imaging lens assembly is corresponded to the non-circular opening hole of the first optical component.

Disclosed is a manufacturing method of a molybdenum target. The method comprises providing molybdenum powder; performing a first densification process on the molybdenum powder through isostatic pressing to obtain a first molybdenum target blank; putting the first molybdenum target blank into a sheath and vacuumizing the sheath; performing a second densification process on the first molybdenum target blank inside the sheath through cold isostatic pressing to form a second molybdenum target blank; after the second densification process, removing the sheath and performing a third densification process on the second molybdenum target blank through induction sintering to form a third molybdenum target blank; after the third densification process, rolling the third molybdenum target blank through hot rolling to form a fourth molybdenum target blank; after the hot rolling process, performing annealing on the fourth molybdenum target blank to obtain the molybdenum target. The manufacturing method of the molybdenum target can help produce full-density molybdenum targets, the uniformity of the internal organizational structure and the size, the purity and the surface dimension of grains of the molybdenum targets can well meet the ever-increasing requirements of the sputtering technology.

A tungsten target manufacturing method comprises the steps of providing tungsten powder; placing the tungsten powder in a package sleeve and performing vacuum pumping; adopting a cold isostatic pressing to enable the tungsten powder in the package sleeve to undergo primary densifying processing, and forming primary tungsten target blank; after the primary densifying processing, removing the package sleeve, adopting an induction sintering process to enable the primary tungsten target blank to undergo secondary densifying processing, and forming secondary tungsten target blank; after the secondary densifying processing, adopting a hot isostatic pressing process to enable the secondary tungsten target blank to undergo third-time densifying processing, and forming a tungsten target. The tungsten target with the full density of over 99.4% can be manufactured through the tungsten target manufacturing method; and the uniformity of the internal organizational structure and the grain size of the tungsten target meet a sputtering process with the requirement higher and higher.

The invention discloses a portable clothes drying device, and solves the problems of large volume and inconvenience in carry of the clothes drying device in the prior art. The portable clothes drying device comprises a clothes drying device skeleton and a clothes drying cover (8) covering the outer side of the clothes drying device skeleton, and is characterized in that the clothes drying device skeleton comprises a supporting mechanism and a clothes hanger (1), wherein the top end of the supporting mechanism is provided with a hook (2), and the bottom end of the supporting mechanism is provided with a heating device (3); and the clothes hanger (1) is arranged at the upper end of the supporting mechanism, is movably connected with the upper end of the supporting mechanism and is umbrella-rib-shaped. The portable clothes drying device disclosed by the invention has the advantages that the structure is simple, the cost is low, the implementation is convenient, and the foldable design is adopted, so that the carry of people is facilitated. Therefore, the portable clothes drying device is suitable for being promoted and applied.

The invention discloses a bridging particle for a shallow casing blind hole. The bridging particle is suitable for the leakage stoppage of a shallow casing blind hole in an oil field, and comprises 1 to 3% of nano-zirconia, 10 to 20% of silica micropowder, 10 to 15% of light calcium carbonate, 25 to 40% of superfine cement, 0.2 to 2% of glass fiber, 1 to 2% of drag reducer, 0.5 to 2% of early strength agent and 30 to 45% of water. The slurry of the bridging particle has good thixotropy; the multiviscosity time is adjustable; the strength is high and the volume does not shrink after solidification; and no micro-cracks are generated. The invention can effectively solve technical problems of oil field leakage stoppage, such as severe casing leakage after a casing of an oil-water well is corroded and holed, while improving construction safety.

The invention discloses a molybdenum-based rare earth oxide powder metallurgical alloy wafer and a preparing method thereof. The method adopts material blending technology of directly mixing three types of rare earth oxide powder in a high proportion into pure molybdenum powder, and employs characteristics of rare earth elements such as long big linkage grains, anti-sag performance and good creep performance and the characteristic that the rare earth element can exert strong dispersion strengthening effects and wrapping effects after adding and compounding to effectively improve the recrystallization temperature of molybdenum and improve the mechanical physical properties of the molybdenum-based alloy material. The method adopts preparing process procedures such as ultrasonic solid phase homogenizing and blending, low-temperature flexible isostatic pressing forming, step-by-step continuous sintering shaping, stagewise multi-pass rolling, and fine processing and grinding, and mating special technical equipment and execution process technical parameters. The method has the characteristics of advanced technology, complete configuration, reliable operation and low cost, and can prepare a molybdenum-based rare earth oxide powder metallurgical alloy wafer with excellent technical performance and high and fine surface quality.

A device of an improvement on the structure of linear actuator primarily includes a motor body and an output shaft, and at one end of the motor body fixed a gear case in which two sets of planetary gear trains fitted, by which a sun gear of one of the planetary gear trains is disposed at the top of output shaft; according to the above mentioned structure, the mesh teeth number between planetary gear is more to enhance the efficiency of resisting shocks and absorbing vibrates for attaining the intention of reducing cost, decreasing weight, diminishing volume, and promoting better outlook.

The invention relates to a plastic seal pressing-in material for eliminating blast furnace gas blowby, which is characterized by being formed by combining plastic seal pressing-in material, long-term plastic sealant and high-strength fast hardening self-flow castable. The plastic seal pressing-in material can be pressed in larger furnace gaps at different blast furnace gas blowby positions, and the material can keep certain plasticity at low temperature, effectively fill in the gaps to play a role in plugging a gas blowby channel, and automatically harden and keep the volume stable and unshrinking; a furnace foundation part is manufactured into a labyrinth seal structure, and a gas exposed channel is plugged by using the long-term plastic sealant; the high-strength fast hardening self-flow castable is cast outside a long-term plastic seal material to level so that a seal solidifying role is played; and the three materials are combined for application so that multi-plugging for the gasblowby channel is formed, the gas blowby channel is effectively plugged, a new blowby channel is not easy to form, and therefore, the aim of fundamentally solving the problem of the blast furnace gasblowby is achieved.

The present invention provides a low-price liquid container, in the liquid container, the capacity of the liquid detection chamber may not vary repeatedly such that it is unnecessary to improve durability of flexible film. The liquid container (1) supplying ink from a supplying port (9) of an open of the container body (5) to inkjet recording device, comprises: a liquid containing chamber (7) that discharges a liquid stored therein from a liquid discharge port (7b) by pressurization of a pressure unit; a sensor chamber (21) that is disposed in a region where a pressure is applied by the pressure unit and is connected to the liquid containing chamber (7), a volume of the liquid detection chamber (7) being increased according to an inflow of the liquid from the liquid containing chamber (7) and being reduced when the inflow of the liquid from the liquid containing chamber stops; a ink detection unit (11) for detecting a change of the volume of the sensor chamber( 21); and a valve mechanism (12) that is disposed between the liquid containing chamber (7) and the sensor chamber (21) and can block an inflow of the liquid from the liquid containing chamber (7) to the sensor chamber (21).

The invention discloses a high strength thermal shock resistance push plate, which comprises components with parts by weight: 3-0.5mm mullite particles 20-30 parts, 1-0.5mm alundum particles 15-20 parts, 0.5-0.1mm quartz particles 10-15 parts, 320 meshes andalusite fine powder 15-20 parts, 220 meshes mullite fine powder 25-30 parts, 2Mumalumina micro powder 8-12 parts, 320 meshes alundum fine powder 5-10 parts, silica powder 5-15 parts, zirconite 5-10 parts, cerium oxide 0.5-2 parts, cerium oxide 2-10 parts, aluminum 5-10 parts, silicon 10-15 parts, white mud 10-15 parts and external binders 1-3 parts. The invention further discloses a method for preparing the high strength thermal shock resistance push plate. The high strength thermal shock resistance push plate is excellent in thermal shock resistance, high in mechanical strength, simple in preparation method and convenient for actual operation.

The invention provides a thermosensitive polymer-modified bivalent platinum nanocluster and a preparation method and application thereof. The bivalent platinum nanocluster has a core-shell structure,the inner core comprises zero-valent platinum with divalent platinum on the surface and the shell is a temperature-sensitive polymer. The preparation method utilizes a thermosensitive polymer ligand as a template to synthesize bivalent platinum nanoclusters with different relative contents of divalent platinum and zero-valent platinum. Through adjustment and control of the relative content of divalent platinum and zero-valent platinum, the relative interaction intensity of the photothermal effect and the chemotherapy effect is precisely adjusted and controlled so that photothermal chemotherapy-combined anti-tumor effects are optimized.

Serially connected heat exchange segments of a heat exchanger are stacked with ends of adjacent segments oriented oppositely. The segments have fixed pipes for heat exchange, pipe-riding shaftless auger flights for conveying feed material, and flanges for low-cost adjustment, removal and replacement of pipes and flights. Flights when arranged in arrays are arranged in pairs of counterrotating oppositely handed mutually cleaning flights. Rotary unions are unnecessary in this exchanger.

The invention discloses a preparation method of dense sintering type composite aluminum nitride ceramics, and belongs to the technical field of inorganic ceramic materials. The preparation method comprises the following steps: firstly uniformly mixing alcohol aluminum salt, silicate ester, fatty acid, an alcohols solvent-nano-iron powder and sodium fluoride, then adding carbon fiber / graphene oxideaerogel, and carrying out ultrasonic immersing, thus obtaining a mixed immersing solution; after heating and carrying out ultrasonic reaction on the mixed immersing solution, filtering, washing, anddrying, thus obtaining loaded filling aerogel; then reducing the loaded filling aerogel by hydrazine hydrate, thus obtaining reduced loaded filling aerogel; then carrying out temperature rising reaction on the reduced loaded filling aerogel step by step under a nitrogen protection state, thus preparing composite aluminum nitride powder; then mixing the composite aluminum nitride powder with calcium oxide, magnesium oxide, polyvinyl butyral and a solvent, molding through injection molding, then carrying out high-temperature sintering, and cooling, thus obtaining the dense sintering type composite aluminum nitride ceramics. The dense sintering type composite aluminum nitride ceramics obtained by the invention has excellent mechanical performance and excellent heat conduction efficiency.

The invention discloses cement mortar dry powder as well as a preparation method and application thereof. The cement mortar dry powder comprises fine sand, Portland cement, aluminate cement, coal ash, an expanding agent, fibers, amphoteric oxides, lignin amine and active calcium oxide. When being used, the cement mortar dry powder disclosed by the invention is uniformly mixed with water, and then cement mortar is made. The cement mortar dry powder disclosed by the invention has the characteristics of high early strength, controllability, no cracking, no whiskering and the like, in addition is low in preparation cost, and can not only meet management of sewer wells of city streets and rapid repairing of airfield runways, cement pavements, tunnels and the like, but also meet rapid construction requirements of back grouting of equipment foundation and reinforcement of foundation bolts.

Provided are a silicon carbide-based porous article comprising silicon carbide particles as an aggregate, metallic silicon and an aggregate derived from organometallic compound particles to form pores through volume shrinkage due to decomposition / conversion by heat treatment; and a method for producing the silicon carbide-based porous article, comprising, adding organometallic compound particles to form pores through volume shrinkage due to decomposition / conversion by heat treatment to a raw-material mixture containing silicon carbide particles and metallic silicon, then forming into an intended shape, calcinating and / or firing the resultant green body, forming pores through volume shrinkage due to decomposition / conversion of the organometallic compound particles, and the decomposed / converted substance of the organometallic compound particles being present as an aggregate in the porous article.

The invention provides a method and a device for producing vanadium-nitrogen alloy, and belongs to the technical field of iron alloy production. The method comprises the following steps: evenly mixing and pressing vanadium pentoxide powder, carbon powder, ferric oxide powder and binder to a sphere according to a certain proportion; filling the pressed sphere into an intermediate frequency induction shaft furnace to react for 2 to 3 hours at a temperature of between 1,000 and 1,700 DEG C under a nitrogen atmosphere, and discharging the sphere; and cooling the sphere under the nitrogen atmosphere to obtain the vanadium-nitrogen alloy product which contains 76 to 81 percent of V, 10 to 21 percent of N, 1 to 9 percent of C, and 1 to 2 percent of Fe by weight and has apparent density no less than 3.5g / cm<3>. The device can realize continuous production of the vanadium-nitrogen alloy by a one-step method. The method and the device have the advantages of continuous production, high production efficiency, small investment of production devices and equipment, simple and compact process flow, high heat efficiency of the induction shaft furnace, online temperature control, sufficient utilization of reaction heat and energy-saving and environment-friendly process.

The invention discloses an arc blade type foldable tidal current energy generation device for a water turbine. The device comprises a stretchable support pillar, wherein the support pillar has a hexagonal cylinder structure; a fixed base plate is arranged at the bottom of the support pillar; at least three foldable arc blades are connected with the fixed base plate through bolts; a movable base plate movably sleeved on the support pillar is arranged on the upper part of the fixed base plate; the movable base plate is connected with the lower parts of the blades through connecting rods; the control on the opening of the blades is realized by controlling the vertical movement of the movable base plate along the support pillar; a generating cabin is arranged at the top of the support pillar; a generator and an accelerating gearbox are arranged in the generating cabin; the support pillar, served as an input shaft, is connected with the accelerating gearbox; an output shaft of the accelerating gearbox is connected with the generator. The device provided by the invention is used for middle / small-scale generation; the volume of the whole device is reduced through the folding and closing of the arc blades and the contracting of the support pillar; the device can be conveniently transported and used; the arc foldable blades can extremely utilize the current energy.

The invention discloses a preparation method and a structure of an aluminum foil material specially used for packaging hair dyes. The structure sequentially comprises a polyester film A, an aluminum foil, a polyester film B and a polypropylene film from top to bottom, sectional bonding work is adopted to make the aluminum foil be bonded the lower layer of the polyester film A, to make the other layer of the aluminum foil be bonded to the polyester film B and to make the polypropylene film be bonded to the other layer of the polyester film B, all layers are bonded through matching an adhesive with pressing and heating of a hot press, standing is carried out at a certain temperature to realize drying and solidification, and a whole body obtained after sectional completion of adhesion of all layer materials is instantly heated to a predetermined temperature to realize outside-to-inside compounding molding in order to prepare the aluminum foil material specially used for packaging hair dyes. The material is used for double-agent one-piece left and right isolated packaging or single-agent independent packaging of the dyes, can effectively isolate unfavorable influences of light and oxygen and water in air on the content, gives good preservation environment, and highly guarantees the quality and the use safety of the dyes.

One or more embodiments of the present specification provide a gait-adaptive porous bio-mechanical regulation insole and shoe, the insole comprises a body and an inflation and deflation mechanism, the body is a mesh porous structure formed by connecting a plurality of small beams, and the porous structure has a plurality of air-permeable pores in all directions, so that the insole has air permeability, and the mutually connected small beams are hollow to form mutually communicated air passages. In the human body gait cycle process, the inflation and deflation mechanism is used for inflating the air channel, the rigidity of the insole can be improved, the air permeability can be reduced, the inflation and deflation mechanism is used for deflating the air channel, the rigidity of the insole can be reduced, the air permeability can be improved, therefore the function of dynamically adjusting the rigidity and the air permeability of the insole is achieved, and assistance is provided for prevention, treatment and rehabilitation of diabetic feet.

The invention discloses a method for improving adsorption capacity of an adsorbent prepared from printing waste liquid extract. The method includes steps: (1) adding chemical substances capable of releasing hydrogen ions into printing waste liquid, and performing stirring reaction; (2) feeding an appropriate quantity of a chemical agent for generating tiny bubbles through reaction with the waste liquid; (3) continuing ultrasonic-assisted stirring and heating until the temperature is 0-20 DEG C higher than a softening point of a connection material; (4) stopping stirring, only keeping ultrasonic treatment, and keeping the temperature for a period of time; (5) after a block extract is completely contracted in volume, performing solid-liquid separation, and removing water; (6) adding saturated potassium hydroxide solution, and stopping ultrasonic treatment after the block extract completely absorbs potassium hydroxide; (7) taking out the block extract, cooling, crushing, and drying at a low temperature; (8) performing further carbonizing and activating for 1-4h under nitrogen protection, and crushing to obtain the adsorbent. By adoption of the method, adsorption capacity of the adsorbent prepared from the extract is improved, and the cationic dye adsorption capacity reaches 460mg / g or above.

The invention relates to the field of Stirling engines, in particular to a double-acting passive energy storage type piston. The double-acting passive energy storage type piston structurally comprises a flexible piston, wherein the flexible piston is hermetically connected with a sealing flange, the sealing flange is connected with a cold cylinder, the cold cylinder is hermetically connected with a hot cylinder, the sealing flange and the cold cylinder are connected with an elastic sealing head through V-shaped piston supports and a connecting piece, the elastic sealing head is fixedly connected with a piston cylinder through an anti-skid device, a pressure balance hole is formed in the piston cylinder, a spring fixing device is arranged in the hot cylinder, and a spring is arranged between the bottom of the piston cylinder and the spring fixing device. The double-acting passive energy storage type piston has the beneficial effects that when an engine is shut down, the spring plays a role in supporting, the piston cylinder is prevented from being deformed by dragging and hanging caused by the gravity of the piston cylinder, so that the service life is prolonged; and when the engine runs, when the piston cylinder moves downwards, the spring is compressed to store potential energy, when the piston cylinder moves upwards, the elastic potential energy is released, so that larger power is provided for the piston cylinder to move upwards, and the efficiency of the engine is improved.

The present invention relates to the field of virtual reality, and more particularly to a retractable VR device, comprising: a display part and a cell phone housing body. The display part includes a retractable machine body and an optical lens. The cell phone housing body is connected with one side face of the retractable machine body; the optical lens is arranged on the other side face of the retractable machine body. The retractable machine body comprises a first support frame, a flexible and elastic support face and a second support frame wherein the first support frame and the second support frame are arranged on the two sides of the support face and surround the circumference of the support face to support. The retractable machine body is provided with at least two selectable states. The two selectable states are a storage state close to horizontal and a use state of extension. According to the invention, the device can be retracted to a size a little bit larger than the cell phone, therefore, perfectly solving the problem that the device cannot be portably carried around due to its large size.

The invention discloses an adjustable noon break pillow, and mainly aims to solve the problem that portability and comfort of a noon break pillow cannot be realized at the same time. The adjustable noon break pillow comprises a pillow interior, bracket, support rods and a base, wherein revolving shaft which is parallel to the longer edges of the base is arranged on one longer edge; the base is movably connected with the longer edges of the bracket through the revolving shaft; at least three pairs of corresponding grooves are formed in the top surfaces of shorter edges on both sides of the base; the pillow interior is arranged on the upper parts of the bracket; revolving shafts which are parallel to longer edges of the bracket is arranged at the cantilever ends of the shorter edges of the bracket; the short edges on both sides are connected with the support rods respectively through the corresponding revolving shafts; the cantilever ends of the support rods are clamped in the corresponding grooves at the same sides of the bracket. According to the adjustable noon break pillow, a structure in which the support rods are fixedly matched with a plurality of groups of grooves is adopted, and a series of use states of different heights are formed by the pillow interior and the base, so that a user can conveniently adjust a comfortable afternoon nap sleeping posture, and the whole size can be reduced conveniently during carrying of the pillow.

The invention provides a high-vibration-resistance kilohertz miniaturized laser, which comprises a pumping coupling module and a laser oscillation module arranged on the upper layer of the pumping coupling module, and is characterized in that the pumping coupling module comprises a laser diode stack, a waveguide shaping device, a cylindrical mirror, a second quarter-wave plate, a convex lens, a Dove prism and a second 45-degree dichroscope; the laser oscillation module comprises a Porro prism, a compensation wave plate, a laser crystal, a first 45-degree dichroscope, a 45-degree polarization plate beam splitter, a first quarter-wave plate, an electro-optical crystal and an output mirror. The laser oscillation module is arranged on the upper layer of the pumping coupling module, so that the size of the laser is reduced; the compressed pump light is changed into elliptically polarized light to inhibit the thermally induced birefringence depolarization effect of isotropic crystals; the laser oscillation module is a self-consistent laser oscillation cavity, has self-adaptation capacity in the x direction and the y direction at the same time, has large anti-vibration tolerance and meanwhile has a large angle compensation range. And a thermal control module is arranged for heat conduction temperature control.

The invention discloses a multifunctional operation platform for subway tunnel construction. The multifunctional operation platform comprises a plurality of supporting cylinder bases, connecting cross beams used for being fixedly connected with the supporting cylinder bases, advancing wheels arranged at the bottoms of the supporting cylinder bases, a top layer supporting table arranged on lifting rods and located above a lower layer supporting table, a folding operation table arranged on the lower layer supporting table and a telescopic operation table arranged on the top layer supporting table. According to the multifunctional operation platform, the tunnel operation platform is integrally designed to be liftable, so that the requirements of tunnels with different heights and construction at different positions and heights of the tunnels are met; meanwhile, the tunnel operation platform can be integrally shrunk, so that transportation is facilitated; in addition, the telescopic operation table is designed to be telescopic, so that different areas in the tunnels can be conveniently installed; and the folding operation table is installed on the lower layer supporting table, so that the overall size of the tunnel operation platform can be conveniently shrunk, and transferring is facilitated; and constructors can conveniently touch all areas of the tunnels.

The present invention is directed to methods and compositions for the diagnosis, prognosis and treatment of glioma in mammals.