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157results about How to "Extend the production cycle" patented technology

Environment-friendly deformation-resistant reed wood composite shaving board and preparation method thereof

The invention discloses an environment-friendly deformation-resistant reed wood composite shaving board and a preparation method thereof, and belongs to the technical field of boards. The reed wood composite shaving board is prepared from wood chips, reed fibers, basalt fibers, lignin fibers, plant extracts, nano silicon dioxide, acetylated distarch phosphate, a C30-45 alkyl cetearyl polydimethylsiloxane cross-linked polymer and a PEG-10 polydimethylsiloxane-vinyl polydimethylsiloxane cross-linked polymer according to a specific proportion. The adhesive is prepared from a methyl methacrylate cross-linked polymer, an MDI adhesive and an organic silicon waterproof agent. All the components are matched for use, the shaving board is prepared in a directional mode, the shaving board has excellent mechanical performance, crack resistance and deformation resistance, the environment-friendly performance is improved, and the use amount of glue is reduced. The novel formaldehyde-free adhesive and the plant extract are adopted to replace traditional formaldehyde-containing glue and a mildew-proof and insect-resistant agent, formaldehyde release is effectively avoided, and a healthier home decoration plate choice is provided for consumers.
Owner:NIELKODA (TIELING) HIGH-TECH MATERIALS CO LTD

Bio-functional stent system driven by dual-mode printing

The invention discloses a biological functional scaffold system driven by dual-mode printing, relates to the technical field of biomedicine, and is used for providing more accurate control on the aspects of porosity, cell attachment and surface modification. By integrating two advanced manufacturing technologies of 3D printing and aerosol spraying, the porosity and surface characteristics of the stent can be accurately controlled in the same printing process, and the cell attachment and proliferation environment is optimized. The cooperative working mechanism greatly improves the biocompatibility and mechanical strength of the biological scaffold, and further effectively promotes the tissue regeneration and repair efficiency. The whole manufacturing process is more efficient and accurate due to introduction of the control unit. The control unit automatically adjusts the printing speed and the spraying pressure based on real-time monitoring feedback, the uniformity and stability of the support are ensured, the error rate in the production process is reduced, and therefore the consistency and reliability of products are improved.
Owner:SHANDONG UNIV

Use method of mold stripping ejection structure for plastic forming mold

The invention relates to the technical field of mold ejection, and discloses a using method of a mold stripping ejection structure for a plastic forming mold, the mold stripping ejection structure comprises a fixed base, the two sides of the top of the fixed base are fixedly connected with fixed baffles correspondingly, the tops of the fixed baffles are fixedly connected with a first connecting frame, and the top of the first connecting frame is movably connected with a second connecting frame; the top of the second connecting frame is movably connected with a third connecting frame, when a mold is manufactured, an inverted buckle structure opposite to the mold opening direction is avoided as much as possible, and if the inverted buckle structure cannot be avoided, other design modes such as changing an inverted buckle into a slope structure can be considered, so that demolding can be smoothly performed during mold opening, and a simple product shape is designed; according to the invention, complex curved surfaces and corners are reduced, so that the mold manufacturing difficulty can be reduced, zero-degree mold stripping can be realized, a proper parting surface position can be selected, products can be smoothly separated during mold opening, the parting surface is selected at the maximum outline of the products as much as possible, and complex parting surface shapes are avoided.
Owner:DONGGUAN CHANGRUN PLASTIC MOULD TECH CO LTD

Semiconductor chip production and processing equipment

The invention relates to the technical field of semiconductor chip production, and particularly discloses semiconductor chip production and processing equipment which comprises a machine body, a workbench and a supporting plate, the workbench and the supporting plate are fixedly installed on the inner wall of the machine body, a placing table used for placing a wafer is fixedly installed at the top of the workbench, the supporting plate is located above the workbench, and an air cylinder is fixedly installed at the top of the workbench. The output end of the air cylinder penetrates through the supporting plate in a sliding mode and is fixedly provided with a driving plate, the bottom of the driving plate is provided with a rotary dispatching mechanism, a rail stripping mechanism and an annular cutting mechanism, and a follow-up ejection mechanism is arranged between the placing table and the driving plate. The whole process is completed in a full-automatic manner and is realized by utilizing the intermittent period of scheduling movement of the laser head, and the cutting time is not occupied, so that the stripping efficiency and the stripping quality are greatly improved, and the wafer production period does not need to be prolonged at the same time.
Owner:JINGYAO SEMICON TECH (SHANDONG) CO LTD

Organosilicon monomer synthesis aggregate and return device and process

The invention discloses an organic silicon monomer synthesis material collecting and returning device and process. A gas phase outlet in the top of a fluidized bed is connected with an inlet of a secondary cyclone separator; a gas phase outlet of the second-stage cyclone separator is connected with an inlet of the third-stage cyclone separator, and a solid phase outlet of the second-stage cyclone separator is connected with a receiving hopper of the second-stage cyclone separator; a receiving hopper of the secondary cyclone separator is connected with inlets of the fine powder tank A and the fine powder tank B; silicon powder and chloromethane react in the fluidized bed, most of silicon powder is separated through a built-in cyclone separator and directly returns to the bed through a dipleg, other gas-solid mixtures enter a secondary cyclone to collect fine powder, the fine powder is alternately and continuously returned to the bed, and the efficiency of the secondary cyclone is adjustable. The reaction of the fluidized bed is stabilized, the automation level and intrinsic safety of the device are improved, and the labor intensity is greatly reduced.
Owner:HUBEI XINGRUI SILICON MATERIAL CO LTD

Integral slot concentrated full-pitch flat wire winding structure and flat wire motor

The invention discloses an integer slot concentrated full-pitch flat wire winding structure and a flat wire motor, and relates to the technical field of motors. Each branch of each phase of the integral-slot concentrated whole-pitch flat wire winding structure comprises one or more coil units, each coil unit is composed of four coil groups, each of the first coil group and the third coil group comprises a same-layer hairpin, the second coil group comprises N / 2-1 cross-layer hairpins, and each cross-layer hairpin comprises N / 2-1 cross-layer hairpins. The two effective conductors of the cross-layer hairpin are located on the adjacent layers of flat wires in different grooves, the fourth coil assembly is obtained by rotating the second coil assembly by m stator grooves in the circumferential direction, and m is the phase number of the winding motor. According to the invention, the stator adopts an integral pitch winding and is matched with a concentrated winding scheme that the number of slots per pole per phase is 1, so that the motor can obtain the maximum winding coefficient; only N / 2 + 1 types of hairpins are needed, and the types of the hairpins are reduced, so that the purposes of reducing the processing difficulty, the assembly complexity, the manufacturing cost and the maintenance difficulty of the flat wire winding are achieved.
Owner:ENERGY STORAGE RES INST OF CHINA SOUTHERN POWER GRID PEAK-FREQUENCY MODULATION POWER GENERATION CO LTD

High-yield pump

An efficient pump, a motor set, a suction and discharge set, an output set and a smashing cutter are assembled in a pipe, the specification of the suction and discharge set adapts to scenes required by life and production, fluid enters the pipe from a lower inlet, a gas-liquid-electric motor is installed in the pipe, the smashing cutter is installed on a motor shaft, the smashing cutter is installed on the motor shaft, and the pipe is provided with a gas-liquid-electric motor connector in a matched mode. A middle hole of a fluid connector is communicated with a variable-diameter small flow channel, a feeding cylinder is provided with a hole, the wheel shaft is provided with the wheel blades, fluid enters from a lower inlet and flows upwards to an upper outlet to flow out of the variable-diameter small flow channel, and a gas-liquid electric motor is a pneumatic motor, a hydraulic motor and an electric motor for short. The specifications of the parts are set according to actual needs. The output of the sucked, discharged and conveyed fluid is extremely high, the size is from small to large, manufacturing and application can be set, durability, high yield and environmental protection are achieved, cost is reduced, benefit is increased, and innovative and good life, production and ecology are benefited.
Owner:叶欣

Carbon dioxide gas energizing fracturing method

The invention provides a carbon dioxide gas energized fracturing method, which relates to the technical field of oil-gas field development, and comprises the following steps: S1, injecting carbon dioxide gas in a supercritical state into a compact sandstone reservoir; s2, the pressure intensity of the injected carbon dioxide is adjusted, the pressure of the stratum is increased, primary fractures are promoted to expand, and new fractures are formed; s3, the pressure intensity of the injected carbon dioxide is adjusted, pressure recovery is carried out after a new crack is formed, and tight sandstone gas in the expanded primary crack and the new crack is replaced by carbon dioxide gas; and S4, stopping injecting the carbon dioxide gas into the tight sandstone reservoir after the tight sandstone gas energized fracturing and recovery, so that the carbon dioxide gas is partially sealed and stored in pores and cracks of the tight sandstone gas reservoir. The method has the advantages that release and flowing of tight sandstone gas are promoted, the natural gas production period can be prolonged, the production capacity of a natural gas reservoir is maintained, and therefore the recovery rate of the sandstone gas is increased.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Double-gun symmetrical back-gouging-free welding method for marine engine base part

The invention discloses a double-gun symmetrical back-gouging-free welding method for engine base parts of a marine engine. The double-gun symmetrical back-gouging-free welding method comprises the following steps that firstly, the engine base parts are assembled; secondly, rivet welding fixing is conducted; thirdly, backing welding is conducted; 4, filling and cover surface welding are carried out; and after bottoming welding is completed, the engine base part is hoisted to a welding station, and corresponding filling and cosmetic welding are carried out at the flat welding position. The back-gouging-free welding method is reasonable in overall design and easy and convenient to operate, back-gouging-free welding can be achieved for welding of the bearing seat and the transverse web part, the welding process is simplified, the welding efficiency is improved, the production period is shortened, meanwhile, the machine seat part is not prone to deformation in the welding process, the welding quality is guaranteed, and the production cost is reduced. And great convenience is brought to the welding work of the engine base part.
Owner:SHANGHAI HULIN HEAVY IND

Monodisperse vaterite-shaped calcium carbonate with uniform particle size and preparation method thereof

The invention discloses a preparation method of monodisperse vaterite-shaped calcium carbonate with uniform particle size, which comprises the following steps: 1, mixing lime with an ethanol solution, carrying out digestion reaction, and standing and settling lime slurry after the digestion reaction is finished; 2, carbon dioxide gas is introduced into the lime slurry for a carbonization reaction, vaterite-shaped calcium carbonate is generated, and different composite crystal growth inhibitors are added during carbonization to regulate and control the crystal form of calcium carbonate; and 3, after the carbonization reaction is finished, carrying out suction filtration, drying and crushing to finally obtain the monodisperse vaterite-shaped calcium carbonate with uniform particle size. The raw materials are low in obtaining cost, the preparation process is simple and easy to adjust, the calcium carbonate particles are regular in morphology and uniform in particle size distribution and are monodisperse products, the method for preparing the calcium carbonate with the special morphology is widened, and the prepared vaterite-shaped calcium carbonate is expected to be applied to the special fields such as the food industry and the pharmaceutical industry.
Owner:GUANGXI HUANA NEW MATERIALS TECH CO LTD

Spirulina alpha-glucan containing soluble dietary fibers and having immunomodulatory activity and preparation method thereof

The invention discloses spirulina alpha-glucan containing soluble dietary fibers and having immunomodulatory activity and a preparation method thereof, spirulina is subjected to continuous illumination culture under nutrient salt deficiency or low temperature or combined regulation and control of low temperature and nutrient salt deficiency; a large amount of alpha-glucan which contains more soluble dietary fibers and has immunoregulatory activity is accumulated in the spirulina, and the spirulina alpha-glucan is prepared by adopting a method of hot water extraction, trichloroacetic acid deproteinization and ethanol precipitation. The prepared spirulina alpha-glucan contains 10%-26% of dietary fibers, the content of the dietary fibers is 9-27 times higher than the content of the dietary fibers of maltodextrin, the spirulina alpha-glucan can induce secretion of NO, TNF-alpha and IL-6 of macrophages RAW264.7, the activation index of the NO reaches 1.5-3.6, the activation index of the TNF-alpha reaches 2.0-4.1, the activation index of the IL-6 reaches 1.6-3.0, and the spirulina alpha-glucan has a remarkable immunoregulation effect. Technical support and product cases are provided for development of spirulina glucan type high-added-value functional products.
Owner:SICHUAN UNIV

Insulating material, preparation method, application and cable

The invention provides an insulating material, a preparation method, application and a cable. The insulating material comprises first resin, second resin, an antioxidant, a cross-linking agent and a cross-linking auxiliary agent, the first resin comprises low-density polyethylene, the weight-average molecular weight of the low-density polyethylene is 120000 Da to 180000 Da, and the molecular weight distribution index of the low-density polyethylene is 4.5 to 5.5; the second resin comprises one or two of high-molecular-weight high-density polyethylene and ultrahigh-molecular-weight polyethylene, the weight-average molecular weight of the high-molecular-weight high-density polyethylene is 250000Da-350000Da, and the molecular weight distribution index is 1.5-5.5; the weight-average molecular weight of the ultra-high molecular weight polyethylene is 2000000 Da to 2400000 Da, and the molecular weight distribution index of the ultra-high molecular weight polyethylene is 6.0 to 8.0. The insulating material has excellent temperature resistance and electrical performance.
Owner:北京怀柔实验室

Bending forming method for wide-side-edge aluminum alloy profile component

ActiveCN119114710AImprove profile accuracyEliminate side bend defectsShaping safety devicesAluminium alloy
The invention discloses a bending forming method for a wide-side aluminum alloy profile component, which relates to the technical field of bending forming and comprises the following steps of: determining the elongation and the wall thickness reduction of an elongation part of a component main body, modifying the distance between the die surfaces of a side bending male die and a bending female die according to the wall thickness reduction, and forming the wide-side aluminum alloy profile component according to the distance between the die surfaces of the bending male die and the bending female die. And a component blank is put into the mold cavity and bent, after the component is bent and formed, the main body bending male mold and the bending female mold are kept immovable, the side edge bending male mold is continuously pressed till the extension amount of the side edge of the component is the same as the extension amount of the main body of the component, the mold is opened, and the component is taken out. By increasing the elongation of the side edge of the component, the elongation of the side edge of the component is consistent with the elongation of the component main body, so that the sidewise bending defect of the component is eliminated, the section distortion of the component main body generated during sidewise bending of the component is reduced, the contour precision of the formed component is greatly improved, external force does not need to be applied, and the production procedures of the component are reduced; and the production period of the component is accelerated.
Owner:JILIN UNIVERSITY

Light-emitting lamp box with multi-aluminum-profile combined structure

The light-emitting lamp box of the multi-aluminum-profile combined structure comprises an outer frame, a support is fixed to the back of the outer frame, the bottom of the support is connected with a base, and a detachable picture box body is arranged in the outer frame; the picture box body comprises a box door and a box body shell, the box door comprises a box cover door and a canvas door, one side of the box cover door is rotationally connected with one side of the box body shell through a stainless steel row chain, and one side of the canvas door is rotationally connected with one side of the box cover door through another stainless steel row chain; the rotating directions of the box cover door and the canvas door are opposite; the box body shell comprises a plurality of LED lamps irradiating forwards, a cam lock is arranged on the other side of the box body shell, a lock catch groove matched with the cam lock is arranged on the other side of the box cover door, and opening and closing of the box cover door are achieved by rotating the cam lock. A replaceable picture is arranged in the canvas door, and the middle position of the box cover door is of a transparent structure through which the replaceable picture can be seen. According to the invention, the convenience of picture replacement, the high efficiency of repair and maintenance and the flexibility of assembly type production are integrated.
Owner:SHANGHAI KONGBO IND

Fish belly side wall construction technology for controlling flatness through welding

The invention provides a fish belly side wall construction process for controlling flatness through welding. The fish belly side wall construction process comprises the steps that the assembling and welding sequence of a fish belly side wall framework is set according to the welding form between a lower edge beam and a cross beam of the fish belly framework; prefabricating reversible deformation on a welding clamp and a tool table top according to deformation generated during welding of the fish-belly skeleton; the positions of a supporting point and a pressing point during adjustment and repair are determined through tests so as to determine the workpiece interference magnitude needed during adjustment and repair and pressing, and the flatness adjustment and repair range is determined according to flatness tests of all stages; and a fish belly side wall welding process is designed according to the determined flatness adjusting and repairing range, and the fish belly side wall is trial-manufactured. The construction process is mature and simple, and process design and implementation of the fish belly side wall can be completed without long-term professional experience; in addition, the tool is low in cost, simple to use and maintain, easy to control cost, simple, convenient and rapid to operate and short in production cycle.
Owner:TIANJIN CNR RAILWAY EQUIP CO LTD

Automatic closestool assembling and stacking line

The invention relates to the technical field of non-standard automation, in particular to an automatic closestool assembling and stacking line which comprises a base assembling and conveying line, a base assembling mechanism, a transfer conveying line, a ribbon fixing mechanism, a packaging and positioning mechanism, a material taking mechanical arm, a material taking mechanism, a stacking and supporting mechanism and a stacking and film wrapping mechanism which are sequentially arranged. A manual assembling position is arranged on one side of the base assembling conveying line and used for manually assembling toilet bases. The seat body assembling mechanism is used for assembling a toilet seat and a toilet base; the transfer conveying line is used for loading an assembled toilet body into a packaging upper cover box packaging base; through seamless butt joint of continuous operation units such as the base assembly conveying line, the base body assembly mechanism and the transfer conveying line, high automation of the whole production process is achieved, manual intervention is greatly reduced, and therefore the production efficiency is remarkably improved.
Owner:DONGGUAN TONGYI MACHINE

A method for preparing bismuth organic acid with moderate reaction conditions

The invention relates to the technical field of fine chemical additives, and discloses a method for preparing an organic acid bismuth with moderate reaction conditions. An organic acid ligand has multiple coordination sites, including O atoms on a polycarboxylic acid group, N atoms on an imidazole, and two N atoms provided by two Schiff bases. A benzene ring and an imidazole ring are connected by a C-N single bond, and the two can rotate arbitrarily, so that the organic acid ligand can be suitable for the coordination of various structures, thereby obtaining a stable structure; an ultrasonic-hydrothermal method can be used to quickly heat up and provide a continuous impact force, thereby significantly improving the yield of the organic acid bismuth; an organic acid ligand with multiple coordination sites is synthesized, and screening test conditions are optimized to obtain an organic acid bismuth with high yield and good stability, thereby improving the problem of poor coordination between conventional organic acids and bismuth, and the method has moderate reaction conditions, a short production cycle, and a high utilization rate of a bismuth source, and is suitable for mass production.
Owner:KITO CHEM CO LTD

Composite film hot-pressing edge sealing process

The invention provides a hot-pressing edge sealing process for a composite film, and belongs to the technical field of composite films, the influence of different GF addition amounts on the mechanical property of the composite film is systematically explored through tests, so that the optimal GF addition proportion is determined, and a solid foundation is laid for optimization of subsequent processes. Thirdly, further starting from the three key parameters of the hot-pressing temperature, the hot-pressing pressure and the hot-pressing time, aiming at the straight-strip-shaped edge sealing shape and the sawtooth-shaped edge sealing shape, the optimal edge sealing process conditions of the straight-strip-shaped edge sealing shape and the sawtooth-shaped edge sealing shape are deeply explored and determined; the structure stability of the composite film is remarkably improved, the edge sealing quality of the composite film is greatly improved, then the rejection rate is effectively reduced, the production period is greatly shortened, and the production efficiency is remarkably improved. Diversified requirements of the market on composite film products are met, and powerful technical support and guarantee are provided for continuous development of new markets and new fields for enterprises.
Owner:JIANGSU HUACHI MASCH CO LTD

Submerged arc furnace with multiple furnace outlets based on novel furnace body rotation

The utility model discloses a submerged arc furnace with a plurality of furnace outlets based on novel furnace body rotation, belongs to the field of submerged arc furnaces, and particularly relates to the submerged arc furnace with the plurality of furnace outlets based on novel furnace body rotation, which comprises a furnace body and the furnace outlets, and further comprises a rotary supporting mechanism and a rotary driving mechanism, the multiple furnace outlets are formed in the furnace body at equal intervals in the circumferential direction. The rotary supporting mechanism is used for supporting the furnace body and is matched with the rotary driving mechanism to drive the furnace body to freely rotate in a horizontal plane; according to the submerged arc furnace with the multiple furnace outlets, the furnace body is supported by the rotary supporting mechanism, the furnace body is driven by the rotary driving mechanism to freely rotate in the horizontal plane, formation of a dead material area is reduced, the area of the crucible is enlarged, and therefore the purposes of increasing production and efficiency are achieved; and a plurality of furnace outlets are uniformly distributed around the furnace body and are used in turn, so that the burning loss and oxidation degree is reduced, the production period is prolonged, and the loss caused by forced stop of production is reduced.
Owner:HEIHE HOSHINE SILICON CO LTD

Device for improving vacuum degree of system

The utility model discloses a device for improving the vacuum degree of a system. The device comprises an air inlet, an air outlet, an air inlet baffle, a porous nozzle, a barrel, a water pool, a water cooling tower, a circulating pump, a temperature sensor and a liquid outlet pipe. The multi-hole nozzle is arranged at the central position in the cylinder body and is 1.5 m away from the gas outlet, and the separation holes with the same aperture are uniformly distributed on the multi-hole nozzle, so that water can be uniformly distributed in the cylinder body, and the effect of full contact with gas is achieved. The vacuum distillation device is simple in structure, convenient to operate and capable of improving the vacuum degree of the device, improving the product quality, reducing heat consumed by the distillation system and increasing economic benefits.
Owner:山东福富新材料科技有限公司

Semiconductor device, manufacturing method thereof and electronic equipment

The invention relates to a semiconductor device and a manufacturing method thereof, and electronic equipment, the semiconductor device comprises multiple layers of storage structures stacked along a first direction and at least one common source line structure, each layer of storage structure comprises multiple storage transistors arranged in multiple columns along a second direction, the first direction is vertical to the second direction, and the common source line structure is arranged between the multiple storage transistors. Each storage transistor comprises a channel layer perpendicular to the first direction and a gate layer arranged around the channel layer, the common source line structure penetrates through the multiple layers of storage structures in the first direction, and the storage transistors in the same column in the same layer of storage structures are correspondingly connected to the same common source line structure; the adjacent storage transistors in the first direction in different layers of storage structures are correspondingly connected to the same common source line structure, so that the number of stacked layers of storage units in the semiconductor device can be increased to improve the storage density, the preparation process of the semiconductor device is simplified, the production cycle of a product is shortened, and the production cost is reduced.
Owner:SWAYSURE TECHNOLOGY CO LTD

An automatic feeding and sewing device

ActiveCN224704811USolve the problem of manual adjustment of material postureGuaranteed stability
This utility model discloses an automatic feeding and sewing device, including a worktable, a moving component, a vision module, and a control module. The worktable has a working plane, and a three-axis moving device and a sewing machine are installed on the worktable. The moving component is rotatably mounted on the three-axis moving device. The vision module is located above the working plane. The control module is electrically connected to the vision module and the three-axis moving device. The vision module collects the position information of the material on the working plane, and the control module processes the information to precisely drive the three-axis moving device, so that the rotatable moving component can pick up the material according to the material's own rotation angle and straighten it. This design directly solves the problem of traditional equipment requiring manual adjustment of the material's posture. Moreover, the three-axis moving device can drive the outer periphery of the material to continuously pass through the overlock sewing machine to perform sewing operations on the outer periphery of the material, which significantly improves processing efficiency and is especially suitable for mass production of fabrics to shorten the production cycle.
Owner:DONGYANG XINDA AUTOMATION TECHNOLOGY CO LTD

Demoulding device for electrolytic cell

The utility model relates to the technical field of electrolytic cells, and discloses an electrolytic cell demoulding device which comprises an installation cabinet, a workbench fixedly connected to the upper surface of the installation cabinet, an installation box fixedly connected to the middle of the upper surface of the workbench, and a control panel fixedly connected to one side of the upper surface of the workbench. The middle of the other side of the upper surface of the workbench is fixedly connected with a vibration demolding device. The motor is arranged to drive the positive and negative tooth screw rod to rotate, so that the positions of the electrolytic bath A and the electrolytic bath B can be accurately adjusted to adapt to products with different sizes and shapes, the multifunctionality and the application range of the equipment are increased, the vibration demolding device can quickly and effectively enable the processed products to fall off from the electrolytic bath, the demolding speed is increased, and the production efficiency is improved. And a plurality of functions are integrated in one mounting cabinet, so that the occupied space of the equipment is reduced, and the operation and the maintenance are convenient.
Owner:SHENZHEN JINGHENGYU ENVIRONMENTAL TECH CO LTD

Water-cooled powder metallurgy die

The utility model discloses a water-cooled powder metallurgy die. The water-cooled powder metallurgy mold comprises a section mold, the section mold comprises a water inlet pipeline and a water drainage pipeline, the water inlet pipeline and the water drainage pipeline are connected to a water cooling box in a penetrating mode, the water cooling box is installed in an inner cavity of the section mold, the water cooling box comprises a condensation groove, a cold water cavity is formed in the condensation groove, one port of the cold water cavity is connected with a cold energy pipe, and the other port of the cold water cavity is connected with a water pump. The condensation pipe is further sleeved with a heat absorption piece, and the heat absorption piece moves left and right in the condensation groove through a moving seat on the lead screw. Through the arrangement of the heat absorption pieces, the contact area between the condensation pipe and the heat dissipation cavity is increased, so that heat is absorbed and conducted more effectively, the cooling speed of the mold is increased, meanwhile, more accurate temperature control can be achieved according to the actual cooling requirement of the mold by adjusting the positions of the heat absorption pieces, and the cooling efficiency is improved. Therefore, the temperature distribution of the whole mold is more uniform.
Owner:HUZHOU JINDING PRECISION TECH CO LTD

Sand washing and sand prevention integrated hydraulic oil extraction pump

PendingCN122649717ASolve the problem of being unable to downloadExtend the production cycleOil pumpWellhead
The application belongs to the field of downhole oil production, and particularly relates to a sand washing and preventing integrated hydraulic oil production pump, which aims to solve the problem that the hydraulic jet pump cannot be lowered to the designed position in the prior art, and comprises a production pump cylinder, a sand washing working cylinder, a sand blocking device, a pressure testing device and a single flow mechanism, one end of the production pump cylinder is fixedly connected with the sand washing working cylinder, the other end of the sand washing working cylinder is fixedly connected with one end of the sand blocking device, the sand blocking device is coaxially arranged with the sand washing working cylinder and is embedded into the sand washing working cylinder, the pressure testing device is coaxially arranged with the sand blocking device, and the bottom of the sand blocking device is provided with the single flow mechanism, thus solving the problem that the hydraulic jet pump cannot be lowered to the designed position in the prior art, realizing the function of sand washing and lowering at the same time, solving the problem of lowering failure caused by fast sand production of the formation and wellhead pressure, and realizing the cleaning function to periodically remove the blockage in the later period and prolong the production cycle.
Owner:PETROCHINA CO LTD

Low-heat early-strength steel fiber mass concrete and preparation process thereof

The invention discloses low-heat early-strength steel fiber mass concrete and a preparation process thereof, and belongs to the technical field of building materials. The concrete is prepared from cement, a mineral admixture, water, fine aggregate, coarse aggregate and steel fiber according to the mass ratio of 413: 177: 147.5: 657.3: 1050: 27.5. By uniformly adding the steel fibers, the compressive strength and the flowability of the concrete can be improved; pouring is carried out through temperature control, so that concrete is rapidly hydrated at an early stage, and the temperature in a pouring structure can be reduced; various functional monomers are introduced into the prepared water reducing agent, so that the strength and durability of concrete can be greatly improved, the cracking condition of mass concrete is reduced, the early strength of the concrete can be improved, and the production cycle is accelerated; therefore, the prepared concrete is high in early strength, good in crack resistance, low in hydration heat and high in fluidity, and has important application value in the technical field of building materials.
Owner:CHINA MCC17 GRP CO LTD +1

Integral manufacturing and forming device and method for ship body

The invention discloses a ship body integral manufacturing forming device and method, and belongs to the field of ship body forming manufacturing. The device comprises a power module, an electrode module, a conductive metal strip, a liquid injection module, an edge pressing module and a mold; the blank pressing module is pressed above the ship edge of the prefabricated workpiece, so that the prefabricated workpiece is fixedly pressed in the mold, the prefabricated workpiece is fixed between the blank pressing module and the mold, a closed space is formed between the blank pressing module and the opening end of the prefabricated workpiece, and after liquid is injected into the closed space, the prefabricated workpiece is equivalent to a flexible container; when the device is used for forming the prefabricated workpiece, the conductive metal strip explodes under the action of pulse current generated by the electrode module, shock waves are formed in liquid, the shock waves drive the metal workpiece to deform, and therefore the shape correction of the prefabricated workpiece is achieved. According to the device, the equipment and production cost can be reduced, the proficiency of workers can be reduced, the production efficiency and the product quality can be improved, and the device is suitable for rapid, accurate and low-cost forming and manufacturing of various ship bodies.
Owner:HUAZHONG UNIV OF SCI & TECH

Marker lamp capable of controlling indication information

The utility model discloses a marker lamp capable of controlling indication information, which is characterized by comprising a shell provided with an information hole; the light source plate is arranged in the shell, the light source plate is provided with light source devices and indication information, the light source devices converge in an array lightening mode to form the indication information, and the indication information is displayed outwards through the information hole; and the control element is electrically connected to the light source plate so as to control the light source plate to generate the indication information and display the indication information to the outside through the information hole. The light source device capable of generating the indication information is arranged on the light source plate, then the needed indication information is generated through the control element, additional mold opening production is not needed, the stock pressure of a manufacturer is released, the production period is shortened, and the product cost is greatly saved.
Owner:LOSE INTERNATIONAL ELECTRIC CO LTD

Elastic handle for valve

The utility model discloses an elastic handle for a valve, which belongs to the technical field of valves and comprises a main handle, an auxiliary handle and an elastic component, the auxiliary handle is arranged below the main handle, the elastic component is mounted between the main handle and the auxiliary handle, and the elastic handle is characterized by further comprising an oval groove and a pin head. Supporting parts are formed on the two sides of the main handle, the oval grooves which are arranged in a bilateral symmetry mode are formed in the supporting parts of the main handle, the two pin heads which are arranged in a bilateral symmetry mode are arranged on the two sides of the auxiliary handle respectively and assembled in the oval grooves, and the main handle and the auxiliary handle form a shear-shaped structure. The elastic member applies an elastic force to the scissor-shaped configuration to open the rear portion of the scissor-shaped configuration. According to the main and auxiliary handle mounting structure, through the pin joint design, the assembling procedure is simplified, the efficiency is improved, the anti-falling effect is good, the structure is stable, and therefore the reliability of valve operation and the user experience are comprehensively optimized.
Owner:TIANJIN GALAXY VALVE