41results about How to "Less affected by heat" patented technology

The invention discloses a nickel chromium alloy for a sealing face of a nuclear power valve. The nickel chromium alloy comprises the following components in percentage by weight: 26.0-28.0 percent of chrome, 2.0-2.5 percent of silicon, 1.1-1.3 percent of boron, 4.5-5.5 percent of molybdenum, 3.0-4.0 percent of tungsten, 0.9-1.1 percent of carbon and the balance of nickel. Meanwhile, a coating layer is prepared by a laser cladding technology so as to obtain a sealing face coating layer of a nickel-based alloy nuclear power valve, which has the following relevant parameters: the rigidity is HRC 42-46 which is slightly higher than HRC39-43 of a Stellite-6 cobalt-based alloy coating layer; the tissue grain fineness number of the coating layer is 11-12 grades which is superior to 9-10 grades of a general plasma jet welding layer and 8-9 grades of a flame resurfacing welding layer; and the width of a combination band of the coating layer and a basal body is 10-30 micrometers which is superior to 80-120 micrometers of a plasma jet welding combination band and 200-300 micrometers of a flame resurfacing welding combination band.

The invention discloses a nickel-base alloy coating for a sealing surface of a nuclear power valve, and is characterized in that the nickel-base alloy coating is prepared according to a method of conducting laser-cladding on nickel-base alloy powder. The nickel-base alloy powder comprises the following constituents by weight percent: 20.0 to 24.0 percent of Cr, 4.0 to 4.2 percent of Si, 3.0 to 3.5 percent of P, 3.0 to 3.2 percent of Mo, 8.0 to 8.5 percent of Fe, 1.0 to 1.2 percent of C, 0.8 to 1.0 percent of yttrium oxide, and Ni in balancing amount. The laser-cladding process adopts a synchronous powder feeding method and a pre-coating method. The nickel-base alloy powder mixture contains no noble metal Co, thereby particularly meeting requirements on valves under nuclear environments; and due to the formulation design of the mixture, and the advantage of the laser-cladding technology in coating preparing, the coating on the sealing surface has a favorable high-temperature property.

The invention discloses a thermochromic polypropylene composition. The thermochromic polypropylene composition comprises, by weight, 95-99 parts of polypropylene resin and 0.5-3 parts of thermochromicmicrocapsules. The core of the thermochromic microcapsule is prepared from a triphenylmethane-metal complex and the wall of the thermochromic microcapsule is synthesized from formaldehyde and melamine through polymerization according to a mole ratio of 2.5/1 to 3/1. The preparation method of the thermochromic microcapsule comprises that formaldehyde and melamine undergo an addition reaction at pHof 7.5-8.5 to produce a methylol melamine prepolymer, a triphenylmethane-metal complex is dispersed in a sodium dodecyl sulfate aqueous solution with a concentration of 0.2-1.0 wt%, the methylol melamine prepolymer is added into the solution, the pH is adjusted to 5.5-6.5 so that a microcapsule emulsion is obtained, the microcapsule emulsion undergoes a reaction at 80-90 DEG C for 3h, and the reaction product is washed, is subjected to suction filtration and is dried so that the thermochromic microcapsule is obtained. The thermochromic polypropylene composition can resist heat in a long termand can be widely used in automobile dashboards, accessory dashboards, seats, door plates, bumpers or stand columns.

A rechargeable battery including an electrode assembly, a case housing the electrode assembly, a cap plate coupled to the case, a first electrode terminal on the cap plate, and a first lead tab electrically connecting the electrode assembly and the first electrode terminal, wherein the first lead tab has a cell fuse and a heat dissipating member coupled to the first lead tab and spaced from the cell fuse.

The invention discloses a laser continuous cutting device used for cutting a saw belt and a cutting method. The laser continuous cutting device aims to solve the problems that continuous cutting and forming of sawteeth can not be achieved, tool auxiliary time accounts for a high percentage, and cutting efficiency is low in the prior art. The laser continuous cutting device comprises a base which is sequentially provided with a driving friction roller used for regulating feeding speed of the saw belt, a pressing wheel set used for pressing the saw belt, a work platform and a driving wheel set driven by a driving device; a laser head which is arranged on a Z shaft for cutting the saw belt is arranged above the work platform; the work platform is provided with a feeler block and a transverse locating mechanism used for locating the saw belt; during cutting work, the speed of a sliding platform X1 is the same as the feeding speed of the saw belt. The laser cutting sawtooth continuous forming technique does not need a milling cutter, and the sawteeth in any two-dimensional shapes can be correspondingly manufactured very rapidly.

The invention discloses a pneumatic forceps holder, relates to the forceps holder for motor braking, and belongs to the novel pneumatic forceps holder both economic and practical. The pneumatic forceps holder is characterized by comprising two symmetrical shells same in size and two symmetrical spring bellows same in size; the spring bellow are oppositely combined and arranged in the shells and fixed through bolts; an inner cavity is formed between the spring bellows, and an outer cavity is formed between the shells and the spring bellows; one outer side face of the shells serves as a level surface to be processed. The pneumatic forceps holder has the advantages that the pneumatic forceps holder is novel in structure, convenient to process, small in size, convenient to mount and use, less n processing difficulty and precision, long in service life, convenient to maintain and replace and the like.

The invention relates to a reusable liquid metal battery device, comprising: a battery casing, a top cover, a metal sleeve, an insulating sealing material, a negative electrode conductive tube and a valve, wherein a negative electrode current collector, an electrolyte, a positive electrode material and a positive electrode current collector are successively placed in the battery casing; the positive electrode material is placed in the positive electrode current collector; the negative electrode material is placed in the negative electrode current collector; the negative electrode current collector is connected to the negative electrode conductive tube through a negative electrode lead wire; the negative electrode conductive tube passes through the metal sleeve at the center of the top cover to be connected with the valve; and the battery casing and the top cover are in detachable connection. The liquid metal battery device provided by the invention can be disassembled to be reused, isadapted to the optimal adjustment of an active material inside the battery, can simplify the configuration process of the battery, reduces the research and development cost of the liquid metal battery, and detects the air impermeability of the battery casing through the valve.

The invention discloses film coated tablets of tripterygium hypoglaucum tablets and a preparation method thereof. The film coated tablets are characterized in that: oblate or elliptic tripterygium hypoglaucum tablets with the diameter of 0.8 to 1.2 centimeters are used as tablet bases, and a film coating with the thickness of 0.1 to 0.3 millimeter is sprayed and coated on the tablet surface; and the tripterygium hypoglaucum tablet cores comprise the following components in part by weight: 40 to 80 parts of tripterygium hypoglaucum, 10 to 40 parts of starch, 0 to 30 parts of microcrystalline cellulose, 10 to 30 parts of 1 to 10 percent hydroxypropyl methyl cellulose methanol solution, 0.5 to 5 parts of magnesium stearate and 1 to 5 parts of carboxymethyl starch sodium. The preparation method for the tripterygium hypoglaucum film coated tablets has the advantages of simple preparation, easy operation, easy mastery, low equipment investment and short production period; and the prepared tablets have stable main medicinal property, are favorable for improving the medicinal quality, and ensure the effect of the tablets.

The invention discloses a preparation method of a moisture-proof traditional Chinese medicine coated film, which relates to a coating technology of the traditional Chinese medicine and belongs to the medicinal preparation field. The moisture-proof traditional Chinese medicine coated film comprises the following components: 30-40 parts of hydroxypropyl methyl cellulose, 5-8 parts of triethyl citrate, 6-10 parts of xylitol, 4-8 parts of castor oil, 4-8 parts of tween-80, 14-18 parts of dextrin, 6-10 parts of aerosol, 6-10 parts of zein, 5-10 parts of 1% of artificial food coloring solution, 350-420 parts of distilled water (40-50 DEG C) and balance of ethanol with 95% of concentration; wherein weight unit of solid is gram, and volume unit of liquid is milliliter. The moisture-proof traditional Chinese medicine coated film has the beneficial effect of stable chemical property of a film forming substance, inertia to an enzyme system, no physiological toxicity and no usage of cane sugar; the coated film has the advantages of moisture resistance, heat resistance, cold resistance and abrasion resistance which are better than that of the sugar coated tablets, so that the stability of the coated film is increased, and storage period is prolonged.

The invention relates to a device and method for welding a target through stirring friction. The device comprises an indium binding device and an encapsulating structure. The method for welding the target through stirring friction comprises the sequential steps that firstly, binding surfaces of ceramic target and a metal substrate are each coated with a welding layer through a thermal coating method; secondly, the ceramic target coated with the welding layer and the metal substrate coated with the welding layer in the first step are horizontally placed on a horizontal table; thirdly, a metal wire rotating at a high speed is adjusted so that the metal wire can exactly face a seam of the two welding layers of the binding surfaces of the ceramic target and the metal substrate; fourthly, binding bonding welding work is started, the rotating speed of a controllable motor is adjusted, the moving speed of the horizontal table is adjusted, and the horizontal table is horizontally moved in the radial direction of the metal wire. By means of the method, the defect that when ceramic target and a metal substrate are welded through a traditional resistance heating method, deformation and cracking occur after welding due to the large difference of the coefficients of thermal expansion can be effectively overcome.

The invention discloses a laser cutting method, which is applied to a cutting operation of a multilayer composite material. The laser cutting method comprises the following steps of fixedly placing acut piece on a cutting platform; controlling a laser to emit a laser beam, wherein the output power of the laser is 15-50 W, the output pulse frequency is 200-2000 kHz, and the wavelength of the laserbeam is 243-455 nm; and carrying out laser cutting along a preset cutting line of the cut piece by the laser beam, wherein the cutting speed is 100-500 mm/s. Meanwhile, the invention further discloses a laser cutting device capable of implementing the laser cutting method. According to the technical scheme, the laser cutting method is adopted, the process parameters of the laser cutting machiningare controlled, so that the temperature of the heat affected area of the cut piece along the two sides of the cutting line is not increased too much, the heat influence is small, the heat can be released in time, and the phenomenon of poor quality of the cut finished product caused by the fact that molten impurities infiltrate between the layers due to the reduced adhesion between the layers is avoided.

The invention relates to a conveying manipulator and a handling device used for carrying a large area baseplate. The conveying manipulator comprises a load-bearing arm and a heat protection shell positioned on the surface of the load-bearing arm, wherein the thickness range of the heat protection shell is 0.001mm-0.3mm; and preferably, the surface of the load-bearing arm or a surface at which the heat protection shell is contacted with the load-bearing arm is provided with one or more protruding parts. The invention also provides the handling device which comprises the conveying manipulator. The conveying manipulator provided by the invention adopts the heat protection shell, the conveying manipulator still can exactly operate under a hot environment, even if the conveying manipulator is positioned in the hot environment for a long time, and the conveying manipulator can not transform; and in addition, the thickness of the heat protection shell is 0.001mm-0.3mm, further the weight of the conveying manipulator is reduced, the volume of the conveying manipulator is reduced, and the conveying cost is reduced.

The present invention provides a method for manufacturing an assembly of a flexible display device and an assembly of a flexible display device manufactured therewith. The method includes: (1) providing a flexible base (22); (2) forming a graphene layer (24) on the flexible base (22); (3) forming a protective layer (26) on the graphene layer (24); (4) forming a low-temperature polysilicon layer (28) on the protective layer (26). The method for manufacturing an assembly of a flexible display device and the assembly of the flexible display device manufactured therewith according to the present invention are such that the graphene layer is formed on the flexible base to effectively conduct out heat generated in the process of forming the low-temperature polysilicon layer so as to protect the flexible base from being affected by the heat without increasing the thickness of the protective layer thereby reducing internal stress and facilitating the realization of thinning.

The invention discloses an LED support capable of emitting light from two sides. The LED support comprises a cup cover and metal pins. The cup cover comprises a reflection cup and a base. The number of the metal pins is more than two, all the metal pins are arranged at the same side of the cup cover; each metal pin comprises a chip placing section, a vertical welding section and a horizontal welding section, the chip placing section is arranged in the reflection cup, the vertical welding section is arranged at the outer side of the side surface of the base, and the horizontal welding section is arranged at the lower side of the bottom surface of the base. Meanwhile, the invention further provides an LED luminescent device and an LED display screen using the support. According to the invention, the metal pins of the original side light-emitting device are lengthened and bent and thus the tail ends of the metal pins can be arranged on the bottom surface of the base, so that the LED device is compatible with a side surface-mounted lamp and a back surface-mounted lamp; and the metal pins with good heat-conducting properties are arranged on the bottom surface of the base, so that the defects that the base is heated to become yellow and the stability of a product is influenced are overcome.