67results about How to "Suitable for large quantities" patented technology

A method for electrophoretic deposition preparation of the carbon nanotube film belongs to the field of the nano materials technology. The preparing method comprises the following steps: purification treatment and face finish for the carbon nanotube, the formation of the carbon nanotube stable suspension, electrophoretic deposition for the carbon nanotube film, film drying, and second electrophoretic deposition. The invention has the advantages of simple production equipment, rapid film forming speed, controllable film thickness, and unlimited substrate shape.

The invention discloses an ultraviolet-heat dual-curing adhesive composition and a preparation method thereof. The ultraviolet dual-curing adhesive composition comprises the following components in percentage by mass: 20-50% of polyurethane modified epoxy monoacrylate, 10-25% of reactive diluent, 5-40% of conductive filler, 1-5% of silane coupling agent, 1-5% of photoinitiator and 1-5% of heat curing agent. The ultraviolet-heat dual-curing adhesive is high in curing speed; after a few seconds of ultraviolet irradiation, the acrylate double-bond group in the system can be quickly cured, so that the adhesive has preliminary bonding strength; and then by means of heating, the epoxy group is further subjected to crosslinking and curing according to a heat curing mechanism, thus further improving the bonding strength of the adhesive. The adhesive has high bonding strength and favorable conductivity, and can meet the bonding requirements of devices in electronic industry and the like. Besides, the adhesive disclosed by the invention is solventless, simple to operate, high in curing speed, high in bonding strength and suitable for batch production on a production line.

The invention discloses a calibration method of a fluorescence detection instrument. The method is used for calibration of fluorescence detection instrument before leaving the factory. The light intensity detection of the fluorescence detection instrument and calibration of signal detection module parameters are carried out into two steps independently. The light intensity detection uses a light intensity measurement instrument; and the calibration of the signal detection module parameters uses a standard light source as a detection light source. The invention adopts the existing standard equipment after measurement determination for the calibration, has standard traceability and uncertainty, and is suitable for mass and accurate measurement. At the same time, the method of the invention can also be used in quality control of instruments to detect light source attenuation after long time operation; if attenuation exists, the light source can be replaced. The invention improves the consistency of fluorescence detection instrument in mass production.

The invention discloses a chirality coupling core diameter optical fiber and a manufacturing method thereof and relates to the field of optical fiber laser transmission and amplification. The manufacturing method comprises the following steps of: processing a guide fiber core preform semifinished product and a satellite fiber core preform semifinished product to form a satellite fiber core preform and a guide fiber core preform; embedding the satellite fiber core preform into a fiber core slot; carrying out fused biconical taper at the top of the guide fiber core preform to form a chirality coupling core diameter optical fiber preform; and carrying out melting and wire drawing on the chirality coupling core diameter optical fiber preform to form a chirality coupling core diameter optical fiber. Output optical beam quality of the chirality coupling core diameter optical fiber is less than 1.1, fundamental mode loss is less than 0.5dB / m, and high-order mode loss is more than 100dB / m. The chirality coupling core diameter optical fiber manufactured by the invention is good in optical property and reliability, low in manufacturing difficulty and applicable to mass production.

The invention discloses a screw cylinder type pressure filter capable of continuously working, comprising a body, a support saddle for supporting the body, and a driving device. The body is provided with a feeding hole and a discharge hole. The invention is characterized in that the body is a horizontal cylinder body, wherein a screw rod is installed at the shaft line, the screw rod penetrates through the whole cylinder body, the outer diameter of the screw rod is matched with the inner diameter of the cylinder body, the feeding hole and the discharge hole are respectively positioned at both ends of the cylinder body, and simultaneously a drainage mechanism is further provided on the cylinder body; the screw rod is connected with the driving device, the rotation of the screw rod is driven by the driving device, materials in the cylinder body are transported and dehydrated, and the squeezed water is discharged out of the cylinder body by the drainage mechanism. The pressure filter in the invention not only can realize continuous work of pressure filter for materials, but also can greatly improve the dewatering efficiency of the materials by using higher pressure to press the materials, thereby achieving the purposes of adapting to increasingly-developed industrial production development requirements for large mass and high strength.

The invention relates to an ionic conductor elastomer and preparation and application thereof. The ionic conductor elastomer is prepared by taking a high molecular monomer, a water-soluble polymer andan ionic liquid as raw materials, carrying out one-step water phase free radical polymerization under the action of an initiator, and processing. The ionic conductor elastomer prepared by the invention has high strength, self-repair, ultra-long stretching and other high performance, and is easy to be processed into various shapes. The ionic conductor elastomer has simple steps and easy operation,is convenient to realize large-scale production and preparation, and is expected to be used in the fields of Internet of Things sensing equipment, medical bionic electronic instruments, intelligent robots and the like.

The invention discloses a heat barrier composite cladding layer which consists of a MCrAlY alloy adhesive layer, a NiAl alloy barrier layer, a ZrO2-CeO2 ceramic layer and an Al2O3 protective layer; the NiAl alloy barrier layer is arranged between the MCrAlY alloy adhesive layer and the ZrO2-CeO2 ceramic layer, and the Al2O3 protective layer is arranged on the surface of the ZrO2-CeO2 ceramic layer. The invention adopts a preparation process integrated with electrophoretic deposition, high-speed electrical spray-plating and plasma arc plating layer scanning, and has the advantages of simple operation method, quite low preparation cost, capability of realizing industrialized production and the like, and the prepared heat barrier composite cladding layer also has the advantages of low heat conductivity, low roughness of the cladding layer surface, high integration strength of the cladding layer and the matrix, good hot corrosion resistance performance, good hot oxidation resistance performance and the like, solves the difficulties of poor high-temperature oxidation resistance and high-temperature corrosion resistance of high temperature resistant parts, and prolongs the service life of the high temperature resistant parts.

The invention discloses a preparation method of a solid corrosion-inhibition scale-inhibition bar used for an oil field, which relates to a production method of a chemical medicament used for the oil field. The preparation method comprises the following steps of: (1) mixing 30 to 40 percent of 2-phosphonobutane-1,2,4-tricarboxylic acid, 10 to 15 percent of polyethylene glycol, 10 to 15 percent of sodium hexametaphosphate, 15 to 25 percent of Span-60 and 20 to 30 percent of stearic acid evenly, wherein the percent is the mass percent of the sum of each component occupying all the components; and (2) putting all the evenly mixed components into a bar type mold, pressing into a bar type by using a press machine and forming a finished product, wherein the pressure applied by the press machine is 15 to 20 tons. The method has the advantages of simple preparation process, even mixing of the components, trouble saving and labor saving, so that the method is suitable for mass and industrialized production and large-scale popularization and application.

The invention discloses a quantitative feeding device for lotus seed processing equipment. The quantitative feeding device for the lotus seed processing equipment comprises a feeding hopper and a rotation feeding mechanism. The rotation feeding mechanism is arranged on the bottom in the front of the feeding hopper and comprises a main shaft, the two ends of the main shaft are supported by bearing seats, a belt wheel is arranged at one end of the main shaft, at least one material grabbing disc is arranged on the main shaft in the feeding hopper, openings corresponding to the material grabbing disc are formed in a vertical plate of lining plates and the front side wall of the feeding hopper, the material grabbing disc penetrates through the two openings, a discharging chute is formed in the bottom of the outer side of the front side wall of the feeding hopper, and the opening in the front side wall of the feeding hopper is communicated with the discharging chute. At least one groove is formed in the contour of the material grabbing disc, side plates are arranged on the two sides of the groove, and an auxiliary feeding plate is arranged at the inlet end of the groove in the circumferential direction. Circular-arc grooves are formed in the circumferential face of the material grabbing disc. The quantitative feeding device for the lotus seed processing equipment can feed materials evenly and quantitatively to the lotus seed processing equipment, the phenomenon that multiple lotus seeds are fed at one time can be avoided effectively, and the feeding quality and the feeding efficiency of the quantitative feeding device for the lotus seed processing equipment and the quality of the processed lotus seeds are improved.

The invention discloses a rapid punch forming process for a thermoplastic carbon fiber composite board. The rapid punch forming process for the thermoplastic carbon fiber composite board comprises thefollowing steps that the thermoplastic carbon fiber composite board is put into a punching die at first, then the thermoplastic carbon fiber composite board is heated to reach and be kept at the temperature 10-20 DEG C lower than the viscous state temperature of the thermoplastic carbon fiber composite board, then the punching die is started to punch the thermoplastic carbon fiber composite board, then heating is stopped, and the thermoplastic carbon fiber composite board is cooled to be at the room temperature, demolded and taken out. The rapid punch forming process for the thermoplastic carbon fiber composite board is convenient to operate, simple in process and good in effect, the machined and formed thermoplastic carbon fiber composite board is high in quality, and punch forming of the thermoplastic carbon fiber composite board can be finished easily, conveniently and rapidly.

The invention relates to the forming process of folic acid after the synthesizing procedure, which consists of charging deionized water, preparing paste with 28-45% of solid content, loading into screw pump, using a pressure type spray and granulation drier to squeeze the paste out of the screw pump at the air intake temperature of 210-320 deg. C and air-out temperature of 90-150 deg. C, simultaneously carrying out atomizing and granulating, drying and compacting, and finally obtaining 20-120 mesh of granular folic acid product through sieving.

The invention discloses a telescopic anti-freezing full-physical crosslinked hydrogel material for a multi-mode flexible sensor and a preparation method thereof. The hydrogel material is an ionic conductor with a full-physical crosslinked structure and comprises a poly-N-hydroxyethyl acrylamide hydrogen bond network and a chitosan ion crosslinked network. N-hydroxyethyl acrylamide, chitosan and aphotoinitiator are taken as raw materials, and ultraviolet radiation curing and saline solution soaking crosslinking are carried out to obtain the poly-N-hydroxyethyl acrylamide hydrogen bond networkand the chitosan ion crosslinking network. The material has super-compressibility, high tensile strength, high toughness, self-restorability, self-healing property, fatigue resistance and mechanical stability, can maintain good mechanical properties and electrical conductivity in a low-temperature environment, and is expected to be applied to the fields of flexible electronics, wearable electronicequipment, tissue engineering, super capacitors, intelligent robots and the like.

The invention provides a SERS (Surface enhanced Raman Scattering) substrate based on boehmite nanometer film and a preparation method thereof. According to the method, a layer of a boehmite nanometer film is grown on an aluminium substrate by employing a water bath process, and a layer of a metal film is plated on the boehmite nanometer film. According to the method, the SERS active substrate, which is controllable in morphology, high in repeatability, uniform in hot spots, stable in properties, capable of growing in a large area, and extremely high in sensitivity, can be obtained on the high-aluminium substrate through the simple water bath process. The preparation technology for the SERS substrate is simple, high in efficiency, low in cost and suitable for large-scale production, and provides an effective batch preparation new approach for scientific research on preparation and application of the SERS substrate.

The gas detecting sensor includes substrate, one layer of diamond film / nano diamond film on one side of the substrate, two metal electrodes connected to the diamond film / nano diamond film and leads; heating resistor on the other side with measuring leads connected to ends. The making process includes making heating resistor, pressure welding measuring leads to ends of the heating resistor; hot wire chemical vapor deposition to prepare diamond, forming nano diamond film via grinding or bias nucleating on the substrate via high temperature reaction of methane or hydrogen; and leading out the metal electrodes. The sensor has high selectivity, high sensitivity, fast response, excellent restore homogeneity, high temperature resistance, high radiation resistance and simple production process.

This invention relates to a reaction kettle colored chitose fiber production, which has following steps: during the dissolving of the colored chitose fiber spinning material, adding the dyestuff into the reaction kettle according to a certain proportion, then stirring the solution to make it into colored spinning slurries, and then through filtering, spinning, drawing-off, washing and drying the material becomes colored fiber. This invention is applied in large-scale production, and the operation method is simple.

This invention relates to a liquid crystal display with improved contrast ratio, switching performance, reflectivity at the Dmin state and structural integrity, and methods for its manufacture.

The invention belongs to the technical field of functional materials, and particularly relates to intelligent microgel achieving linear temperature response and a preparation method thereof. According to the intelligent microgel achieving the linear temperature responses and the preparation method thereof, by means of precipitation polymerization of two kinds of oligomeric ethylene glycol acrylate monomers and an aqueous solution of a cross-linking agent, microgel which shows linear temperature response behaviors within a wider range is obtained. When acrylic monomer is introduced in the precipitation polymerization process, microgel achieving pH response and linear temperature response simultaneously can be obtained; the response behaviors can be customized and adjusted by changing the proportion. The raw material is ethylene glycol-based monomer which is good in biocompatibility, the solvent is water, the preparation process is green and free of pollution, operation is convenient, large-scale industrial production can be achieved, and the prepared microgel has the linear temperature response behaviors, makes up the gap of traditional dramatic temperature response behaviors and has the large-scale preparation potential and wide commercial application prospect.

The invention discloses a method for forming a gas generator gland of an air bag, which comprises the steps of pre-heating an aluminum alloy blank to 160 DEG C-190 DEG C, dipping in sticky lubricant, drying and heating the aluminum alloy blank to 440DEG C-460DEG C, keeping the temperature, and putting in a forging die for press forming. In the forming process, the outer ring of the workpiece bears additional external force in a direction opposite to the plastic flow direction of the workpiece. The additional external force is applied by a hydraulic or pneumatic or spring mechanism through controlling a gliding block on the bottom of a die cavity. The method is applied to processing the gas generator gland of the air bag, improves product precision and production efficiency, prolongs the service life of dies, reduces production cost, and is particularly suitable for automatic production on a large scale.

The invention relates to a graphene heating film and a preparation method thereof. The adhesive comprise an upper insulating cloth, positive conductive tape, negative conductive tape, An intermediatecomposite film and a lower insulating cloth, the positive electrode conductive adhesive tape, The negative electrode conductive adhesive tape is respectively adhered on both sides of the upper surfaceof the intermediate composite film, and the intermediate composite film is formed by bonding the graphene conductive film and the PE film together vertically. The intermediate composite film is provided with circuitous electrified heating lines, and the upper insulating cloth and the upper insulating cloth are respectively laid on the upper surface and the lower surface of the intermediate composite film. The graphene fiber heating film of the invention has good flexibility and high thermal conversion efficiency, only 170W power per square meter, and can meet the requirements of 3-6 square area, and can radiate radiant heat. That graphene fiber heating film of the invention is an energy-saving, environment-friendly, healthy, safe and comfortable household heat product, and fills in the blank of safety and flexible heating film heating products at home and abroad.

The invention discloses a microwave device and an assembly method thereof, and relates to the technical field of electronic components. The microwave device comprises a box body, and is characterized in that the internal part of the box body is fixedly provided with a PCB, the surface, which is connected with the box body, of the PCB is provided with an insulating dielectric layer, the upper surface of the insulating dielectric layer is provided with a PCB pattern, the insulating dielectric layer is provided with a plurality of through holes penetrating the upper and lower surface of the insulating dielectric layer, the side wall of each through hole is provided with a metallized layer, the space enclosed by the metalized layer in each through hole is filled with resin, the metalized layer and the resin form a bonding pad structure, a chip is fixed at the upper surface of the bonding pad, the back surface of the chip is connected with the box body through the metalized layer, and a wiring terminal of the chip is connected with the PCB pattern through a gold bonding wire. The microwave device has the advantages of small spacing between strip lines, low cost, no stress transition, simple assembly and high efficiency.

The invention relates to Fe-based metal organic skeleton nanoparticles with a function of near-infrared absorption, and a preparation method of the Fe-based metal organic skeleton nanoparticles. The obtained Fe-based metal organic skeleton nanoparticles are characterized in that the nanoparticles belong to a porous structure material which is uniform in size and adjustable in scale and morphology and has larger specific surface area, remarkable near infrared absorption characteristic and good photothermal conversion effect. The preparation method comprises the steps of (1) sequentially adding a certain amount of a polyvinylpyrrolidone water solution and a certain amount of a hydrochloric acid solution into a potassium ferricyanide water solution under the stirring condition; (2) after 30min, placing a precursor solution obtained in the step (1) into a drying oven at the temperature of 40-100 DEG C for reacting for 24h; (3) carrying out high-speed centrifugal separation on a colloidal solution obtained in the step (2), and then carrying out ultrasonic cleaning to obtain the blue Fe-based metal organic skeleton nanoparticles. The obtained Fe-based metal organic skeleton nanoparticles have important potential application value in the aspects such as drug transport, diagnostic imaging, photothermal therapy and medicine controlled release.

The invention discloses a hydraulic jack with an automatic speed regulation function and belongs to the technical field of hoisting equipment. The hydraulic jack comprises base, a pump body, a pump core, an oil pump pedal assembly, an oil cylinder, a jacket, a top cap, a piston rod assembly and a piston. An oil storage cavity is formed between the oil cylinder and the jacket, and an oil cylinder cavity is formed between the lower end of the piston and the base in the oil cylinder. The hydraulic jack is characterized in that the base is also provided with a slow oil return line, a rapid oil return valve structure and a hydraulic control one-way valve structure. The hydraulic jack can go down at a normal speed when in no load or light load, and slowly goes down when bearing a higher load, and therefore, the safety of use can be ensured, and the work efficiency is ensured. When the piston rod assembly is pulled out, hydraulic oil in the oil storage cavity enters the oil cylinder cavity by oil suction lines and oil suction one-way valve steel balls, and negative pressure cannot be formed after the hydraulic oil is supplemented into the oil cylinder cavity. After an external force is removed, the oil suction one-way valve steel balls are closed, and the piston rod assembly cannot be retracted into the oil cylinder. The hydraulic jack with the automatic speed regulation function is simple in structure and stable and reliable in performance, and is suitable for low-cost mass production.

The invention relates to food processing equipment, and especially discloses a caterpillar-type lotus seed shellershelling machine. A bearing base support and a driving motor is installed under the front end of the machine frame, a driving shaft is installed on the bearing base support, one end of the driving shaft is connected to the driving motor, and a synchronous belt is installed on the driving shaft; and the caterpillar-type lotus seed shellershelling machine comprises at least one shelling mechanism. The caterpillar-type Lotus seed shellershelling machine has the following advantages: the shellershelling machine is capable of controlling cutting depths into the lotus seed shells as well as effectively fixing the lotus seeds according to different sizes of the lotus seeds; moreover, the shellershelling machine is capable of carrying out high-efficiency shelling operations on the lotus seeds of various sizes without encountering the phenomenons of failed peeling or broken lotus seeds, so that the qualities of the shelled lotus seeds are improved. In addition, the caterpillar-type lotus seed shellershelling machine is safe and reliable in operations, as well as not easy to leak; two sets of shelling mechanisms are combines, so that the production efficiency is greatly improved and the floor area is reduced. The caterpillar-type lotus seed shellershelling machine is suitable for large-scale, automatic and high-quality lotus seed shelling operations in lotus-seed processing enterprises.

The power tool (10) has a clamping device (42) that is arranged for tightening a hollow cylindrical carrier element (32) at machine housing (14) in the region of longitudinal slot (44). A rotatable adjusting shaft (64) of height adjustment device (62) is provided in the region of clamping device, in order to set a working height (70) of power tool by a displacement of power tool in hollow cylindrical carrier element along a longitudinal axis (16). The rotational axis (72) of adjusting shaft is extended in parallel to longitudinal axis or approaching vertically to longitudinal axis.

The invention provides an improved horizontal vessel rotating device which is characterized in that the improved horizontal vessel rotating device comprises rolling wheel stands (1), rolling wheels (2), rolling paths (3), a vessel cylinder body (4), a gear (5) and a transmission device (6), wherein the rolling wheel stands (1) are arranged on the bottom surface of the improved horizontal vessel rotating device; the rolling wheels (2) arranged on the outer edge of the vessel cylinder body (4) are arranged on the rolling wheel stands (1); and the gear (5) arranged on the vessel cylinder body (4) is connected with the transmission device (6) in a meshed manner. The transmission manner of the improved horizontal vessel rotating device provided by the invention adopts a gear transmission manner which has the characteristics of constant transmission ratio, compact structure, high transmission efficiency, and the like. The large gear of the improved horizontal vessel rotating device provided by the invention is arranged on the vessel cylinder body, and a large gear connecting seat and the surfaces of the rolling paths are integrally processed by utilizing a large machine tool, so that the excircles of the two rolling paths are guaranteed to be concentric with the large gear, the operation is stable and the consumed power is low.

The invention discloses a self-positioning hole-making device for a circumferential hole system of an arc-shaped surface. The self-positioning hole-making device comprises a supporting frame, a positioning block, a drilling template, a drill sleeve and a limiting device. The supporting frame comprises a bottom frame and a mounting frame, the mounting frame is arranged on the bottom frame, and a supporting bottom plate, a mounting plate and the limiting device are arranged on the mounting frame; and the mounting plate and the supporting bottom plate are connected with the drilling template, andthe drill sleeve and the positioning block are arranged on the drilling template. The limiting device comprises a first limiting rod adjusting plate, a second limiting rod adjusting plate and limiting rods. The first limiting rod adjusting plate and the second limiting rod adjusting plate are located on the mounting frame and detachably connected with the limiting rods. The device is high in efficiency, high in precision, low in intensity and suitable for large-scale production and application.

The invention belongs to the technical field of super hydrophobic material preparation, and relates to low-density polyethylene super hydrophobic sheets / containers with controllable rolling angle and a preparation method thereof. The preparation method comprises the steps: firstly, carrying out mold pressing of low-density polyethylene granules into 10 [mu]m-2 cm low-density polyethylene sheets by a plate vulcanizing machine; overlaying 2-4 low-density polyethylene sheets together in a mold with the plate vulcanizing machine; then cooling the together-overlaid low-density polyethylene sheets to room temperature, or transferring to a curved-surface mold to be laminated with the curved-surface mold and then cooling to room temperature, stripping the together-overlaid low-density polyethylene sheets better with hands, an iron tong or a universal testing machine, and thus obtaining the low-density polyethylene super hydrophobic sheets / containers. The method is simple and feasible, scientific in principle, simple to operate, low in preparation cost and friendly to environment; and the prepared super hydrophobic sheets / containers have quite high water contact angle and have controllable rolling angle.

The invention belongs to the technical field of super-hydrophobic material preparation and relates to a preparation method of a polypropylene super-hydrophobic surface with the rolling angle controllable. The preparation method comprises the steps that a polypropylene aggregate mold is pressed into polypropylene sheets with the thickness being 10 micrometers to 2 centimeters through a press vulcanizer; 2-4 layers of the polypropylene sheets are stacked and pressed together in a die through the press vulcanizer; then the stacked and pressed polypropylene sheets are cooled to indoor temperature or transferred onto a curved die and attached to the curved die and then cooled to the indoor temperature; and finally the stacked and pressed polypropylene sheets are stripped by hands, pincers or a universal testing machine, and the polypropylene super-hydrophobic surface with the rolling angle controllable is obtained. The method is simple and feasible, the principle is scientific, the operation is easy and convenient, the preparation cost is low, the environmental friendliness is achieved, the prepared super-hydrophobic sheets and a container are quite high in contact angle, and the rolling angle is controllable.

The invention belongs to the technical field of medical instruments, and particularly relates to a coating method of a woven artificial blood vessel and the woven artificial blood vessel. According to the method, a step-by-step coating mode is adopted, the braided tube blank is firstly coated, and the coating is performed under the flat state of the tube blank, so that the contact surface tension of the coating solution and the artificial blood vessel is consistent, the uniformity of the coating is solved, and meanwhile, the water permeation amount of the artificial blood vessel is also effectively reduced; according to the artificial blood vessel and the preparation method thereof, the artificial blood vessel prepared by the method is uniform in coating, small in overall water permeation amount and good in biocompatibility, good elasticity and compliance of the artificial blood vessel are maintained, and the artificial blood vessel has the advantages of being simple in process, convenient to operate, low in cost and good in application prospect. The prepared artificial blood vessel is stored after sterilization, does not need to be pre-coagulated before implantation, and can be directly used for clinical transplantation after being soaked in normal saline.