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33results about How to "Flexible production" patented technology

Mine filling cementing material and preparation method thereof

The invention discloses a mine filling cementing material and a preparation method thereof. The mine filling cementing material comprises the following components in percentage by mass: 3-8 wt% of high belite sulphoaluminate cement clinker; 1-3 wt% of high free calcium silicate cement clinker; 74 to 85 wt% of granulated blast furnace slag powder or granulated blast furnace slag; and 10 to 18 wt% of gypsum. Compared with other paste filling materials with the same strength, the cementing material solves the problems that in the prior art, a mine filling cementing material is poor in excitation effect and poor in mechanical property, so that the mine filling effect is affected, and the cost is high due to the fact that the using amount of the cementing material is large, and meanwhile the using proportion is reduced; and the use of mine backfill engineering is fully met.
Owner:JIAHUA SPECIAL CEMENT

Non-ironing garment with wrinkle effect and manufacturing method of non-ironing garment

The invention relates to the technical field of garment making, and particularly discloses a non-ironing garment with a wrinkle effect and a making method thereof.The garment is made of machine-washable non-ironing pure cotton fabric or linen fabric through non-ironing treatment and wrinkle treatment, the pure cotton fabric is made of 100% cotton, the linen fabric is made of 100% linen, and the wrinkle effect is achieved. The tearing strength of the pure cotton fabric or the flax fabric is more than 20N, and the stitch slipping degree is controlled within 0.4 cm; the tearing strength of the garment fabric obtained after non-ironing treatment and wrinkling treatment is 10 N or above, and the stitch slipping degree is controlled within 0.6 cm. The machine-washable non-ironing pure cotton fabric or linen fabric is adopted to be matched with non-ironing treatment and wrinkle treatment, and by controlling process parameters, the prepared garment has the advantages of having a wrinkle effect, being non-ironing and easy to tidy, being soft and comfortable in fabric and being not prone to deformation after being washed with water.
Owner:GOLDLION (CHINA) LTD +1

Detachable intelligent driving synchronous motor

The utility model relates to the technical field of motors, and discloses a detachable intelligent driving synchronous motor, comprising a first casing, the outer wall of which is provided with a plurality of first thread grooves; a plurality of first connecting holes corresponding to the first threaded grooves are formed in the edge of the first end cover, and one end of the first end cover is detachably connected with one end of the first machine shell; the bottom end of the second machine shell is detachably connected with the other end of the first end cover; the second end cover is detachably connected with the other end of the second machine shell; according to the utility model, the motor is designed into a plurality of detachable parts, so that when the motor breaks down, maintenance personnel can find and replace the faulty parts more easily, and the whole motor does not need to be disassembled; therefore, the maintenance efficiency is greatly improved, and the maintenance cost is reduced.
Owner:SHAOXING MOTAI ELECTROMECHANICAL TECH CO LTD

Quality control method for trazodone hydrochloride intermediate

InactiveCN119479863Aavoid quality deviationimprove accuracyChemical processes analysis/designNeural architecturesPtru catalystTrazodone Hydrochloride
The invention relates to a trazodone hydrochloride intermediate quality control method. The method comprises the following steps: constructing a real-time characteristic tracking system based on a reaction path through dynamic change of key chemical substance concentrations of reactants, an intermediate and a reaction product in a reaction process; the progress condition of the synthesis reaction is captured in real time by monitoring the concentration change of key substances on line; predicting the potential deviation of the intermediate quality according to the relationship between the reaction time and the key substance concentration; based on dynamic tracking of a reaction process, real-time reaction parameters including temperature, pressure and reactant concentration are combined, and an intelligent adjusting system is introduced; when it is monitored that the concentration of a certain reactant is too high, the reaction rate is changed by adjusting the temperature or the reaction time; the influence of each variable on quality fluctuation is traced by analyzing the relationship between key parameters and final quality in the reaction including catalyst dosage, solvent selection and reaction time and utilizing data analysis and a regression model.
Owner:SHENYANG YINGXIN CHEM CO LTD

Large-scale tea lesser leafhopper cultivation and preservation method suitable for cicada tea production

The invention discloses a large-scale tea lesser leafhopper cultivation and preservation method suitable for cicada tea production. The method comprises the following steps: step 1, preferably selecting Jinxuan, jade or Fuding white tea as a host plant variety, and determining the specification of the host plant; step 2, establishing a tea lesser leafhopper adult maintenance area, a nymph maintenance area and an egg incubation area, performing partition maintenance, and preferably selecting optimal maintenance conditions and culture density of different maintenance areas; step 3, preferably selecting a collection mode of tea lesser leafhopper eggs: preferably selecting an adult male-female ratio, and preferably selecting egg laying population density, egg collection duration and the like; 4, a tea lesser leafhopper egg storage chamber is established, and storage conditions are optimized; and step 5, preferably selecting incubation conditions and incubation time of the tea lesser leafhopper eggs after low-temperature storage. According to the large-scale production method, the tea branches to be trimmed in the tea garden are utilized, and the cost is low. The tea branches are used for culture, and the death rate caused by the fact that the leafhoppers need to adapt to host plants again during release is reduced.
Owner:INST OF ZOOLOGY GUANGDONG ACAD OF SCI

Production line shared by concrete electric pole and pipe pile

The invention discloses a common production line for concrete electric poles and tubular piles. The common production line comprises a material distribution room, a production room, a mold removal room, a universal mold treatment room, an independent mold treatment room, a universal material preparation room, an independent material preparation room and a mold closing room. The production room is located on the side face of the material distribution room, and the universal mold processing room and the universal material preparation room are sequentially arranged on the side face of the material distribution room and used for cleaning and assembling electric pole molds or pipe pile molds. The universal mold processing room and the universal material preparation room are adjacent to the production room in the longitudinal direction; the independent mold treatment room and the independent material preparation room are sequentially arranged in the transverse direction and are adjacent to the universal mold treatment room; the mold removal room is located in the universal mold treatment room and extends into the production room and between the independent mold treatment room and the independent material preparation room in the longitudinal direction; the mold closing room is located on the side face, close to the material distribution room, of the universal mold processing room and extends into the production room; and a plurality of hoisting devices for hoisting the molds are also arranged above the production line.
Owner:QUZHOU XINYANG MASCH MFG CO LTD

An adjustable hardware stamping die

ActiveCN224559799UControl liftingflexible productionWorkbenchStamping press
The utility model discloses a kind of adjustable hardware's punch die, including workbench, lower die holder, adjusting mechanism and stamping mechanism;Lower die holder is set in the top of workbench;The top of lower die holder is provided with forming groove;Adjusting mechanism includes adjusting cylinder, oblique guide block and forming template;Adjusting cylinder is set on workbench;Oblique guide block is slidably set in the top of workbench;One end of oblique guide block is connected with the driving end of adjusting cylinder, and the other end of oblique guide block is movably passed through lower die holder;Forming template is vertically movably set in forming groove;The bottom of forming template is slidably set in the top of oblique guide block;Stamping mechanism includes support frame, stamping cylinder and upper die holder;Support frame is set in the top of workbench;Stamping cylinder is set in the top of support frame;Upper die holder is set in the bottom of the driving end of stamping cylinder;The bottom of upper die holder is provided with stamping part.The utility model production mode is flexible, and production efficiency is high.
Owner:DONGGUAN YASHUN PRECISION HARDWARE MOULD CO LTD

Automobile CDU split charging clamp

The utility model relates to the technical field of automobile production equipment, in particular to an automobile CDU split charging clamp which comprises an AGV positioning trolley, positioning mechanisms, a manual regulator and a synchronous rod, supporting frames are arranged at the positions, close to the tops of two short edges, of the AGV positioning trolley, the top of each supporting frame is connected with a bearing seat, the outer wall of one side of each positioning mechanism is connected with a shaft rod, and the outer wall of the other side of each positioning mechanism is connected with a manual regulator. The outer circumferential wall of each shaft rod is connected with the corresponding bearing seat through a bearing, the manual regulator is located on the supporting frame outside one bearing seat, the synchronous rod is of a U-shaped structure, and the two ends of the synchronous rod are fixed to the tops of the sides, close to the bearing seats, of the two positioning mechanisms. The CDU cross beam is arranged on the split charging clamp, then the buckles, the headlamp supports, the electric appliance elements and other components are split charged on the split charging clamp, and then the CDU cross beam is assembled with the vehicle body on the main line, so that the labor amount of the main line can be saved, dependence on the main line can be reduced, the production cost can be reduced, meanwhile, the risk of wrong assembly can be reduced, and the production efficiency is improved. And the qualified rate of products is improved.
Owner:WUHU JINGMAI AUTO PARTS CO LTD

System device and method for adsorbing, desorbing and recycling carbon dioxide in high-temperature flue gas and performing one-step hydrogenation resource utilization on carbon dioxide

The invention discloses a system device for adsorbing, desorbing and recycling carbon dioxide in high-temperature flue gas and performing one-step hydrogenation resource utilization. The system device comprises a waste heat recycling unit, a pretreatment unit, a carbon dioxide recycling unit, a hydrogenation reaction unit and a separation and purification unit, the waste heat recovery unit comprises a first heat exchanger, a rectification reboiler and a second heat exchanger; the pretreatment unit comprises a denitration reactor, a dust remover, supergravity desulfurization equipment and the like; the carbon dioxide recovery unit comprises a carbon dioxide adsorption bed and a regeneration device; the hydrogenation reaction unit comprises a gas mixer, a third heat exchanger and a hydrogenation reactor; the separation and purification unit comprises a fourth heat exchanger, a gas-liquid separator, a feeding pump, a fifth heat exchanger and a rectification separation device. Through carbon dioxide adsorption and hot hydrogen gas stripping desorption, effective recovery of flue gas carbon dioxide is achieved, and the device has the advantages of being simple and high in energy efficiency; as the high-temperature flue gas waste heat recovery process and the carbon dioxide resource utilization process are coupled, heat integration in the system is achieved, and energy conservation and consumption reduction are achieved.
Owner:QUZHOU INNOVATION INSTITUTION FOR CHEMICAL ENGINEERING & MATERIALS +1

Cloth pattern printing device based on inkjet transfer printing

PendingCN121777566ACompletely retains soft feelKeep the feel intactTransfer printing
The invention provides a cloth pattern printing device based on inkjet transfer printing. The invention discloses a cloth pattern printing device based on inkjet transfer printing. The cloth pattern printing device comprises two machine frame inner plates which are vertically arranged and mutually symmetrical. According to the cloth pattern printing device based on jet drawing transfer printing, by arranging the transfer printing cylinder, when the device is used, cloth raw materials and thermal dye sublimation transfer printing paper printed with patterns are fed into the device together, and the cloth and the thermal dye sublimation transfer printing paper are heated and extruded through the transfer printing cylinder; patterns on the transfer paper are transferred to the surface of the cloth in a thermal sublimation mode, the patterns transferred in the mode are high in definition, fine, extremely high in color rendition degree and saturation degree and capable of perfectly presenting fine effects such as gradual change and complex images, dye and fibers are integrated, a surface glue layer does not exist, and the fabric is not prone to falling off. The original soft hand feeling and good air permeability of the cloth can be completely reserved, and meanwhile the finished product is resistant to washing, friction and solarization, not prone to fading, cracking or peeling and outstanding in durability.
Owner:SHIJIAZHUANG JIYI ARTS & CRAFTS CO LTD

Preparation method of hard alloy numerical control blade sintering boat coating

The invention discloses a preparation method of a hard alloy numerical control blade sintering boat coating, which comprises the following steps: S1, preparing raw materials: weighing required amounts of purified water, methyl cellulose and titanium nitride powder according to a weight ratio of (90-110): (0.5-1.5): (10-20); s2, adding purified water and methyl cellulose into a stainless steel barrel, setting the rotating speed of a digital display speed measurement electric stirrer to be 400-800 revolutions per minute, and stirring for 3-5 hours at room temperature; s3, titanium nitride powder is added, stirring continues to be conducted for 10-15 minutes at the room temperature, and coating preparation is completed. The method has the following advantages that the components are simple, raw materials are convenient to prepare, the preparation process is simple, the labor intensity is low, the sintered titanium nitride powder can be recycled and reused, the cost is saved, production is flexible, and small-scale, medium-scale and large-scale production can be achieved.
Owner:ZHEJIANG HENGCHENG CEMENTED CARBIDE CO LTD

Bag storage bin and bag taking mechanism

The invention provides a bag storage bin and a bag taking mechanism, and relates to the technical field of prefabricated bag storage mechanisms of packaging machines. The bag storage bin and bag taking mechanism comprises a bag storage bin mechanism body, the bag taking mechanism body and a belt conveying mechanism, the bag storage bin mechanism body comprises a bag bin support, driving shafts are fixedly arranged at the positions, close to the lower ends, of the two sides of the bag bin support through plummer blocks, the driving shafts are connected with driving synchronizing wheels through keys, and driven shafts are fixedly arranged at the positions, close to the upper ends, of the two sides of the bag bin support. A horizontal bag bin is changed into a vertical bag bin through a mechanical transmission mode of combining a servo motor with a synchronous belt, a connecting rod and negative pressure belt conveying, the space is greatly saved, the workshop layout is optimized, meanwhile, the bag bin is arranged at a sealing position, a connecting rod mechanism is used for taking bags, the bag taking speed is increased, the negative pressure belt conveying mechanism is used, and the bag taking efficiency is improved. The position of the bag can be accurately controlled, the mechanical position does not need to be changed during model changing, convenience is achieved, and production efficiency and equipment stability are greatly improved.
Owner:SHANGHAI XUANHENG MASCH CO LTD

Hemispherical dynamic pressure bearing part grinding tool

The utility model relates to the technical field of bearing parts, in particular to a hemispherical dynamic pressure bearing part grinding tool which comprises a device body, a motor is fixedly connected to the lower end of the device body, a rotating disc is connected to the outer surface of the motor in a sleeved mode, a connecting rod is fixedly connected to the upper end of the rotating disc, and sliding grooves are formed in two first gears. The two rotating rods are rotationally connected into rotating discs, the outer surfaces of the two rotating discs are both sleeved with second gears, two sliding bases are slidably connected into the device body, the upper ends of the two sliding bases are both fixedly connected with arc-shaped blocks, and the outer surfaces of the two arc-shaped blocks are both sleeved with grinding blocks. The motor drives the connecting rod to rotate through the rotating disc, the rotating disc drives the arc-shaped blocks to rotate through the sliding base in the rotating process, the grinding blocks connected with the arc-shaped blocks in a sleeving mode rotate to grind the ferrule, the machining time is shortened, the operation steps are reduced, and the production efficiency is improved.
Owner:SHANGHAI QIYINCHENG PRECISE MOLD CO LTD

Spiral bionic stand column cultivation frame

The utility model discloses a spiral bionic stand column cultivation frame which comprises pipe columns, assembling units, a liquid feeding pipe network and a backflow pipe network, the multiple pipe columns are oppositely arranged, the assembling units are provided with pipe rings and cultivation bowls, each cultivation bowl comprises a bowl body, a liquid discharging pipe, a hose and an overflow pipe, the pipe rings of the multiple assembling units are sequentially arranged outside the pipe columns in a sleeved mode in the length direction of the pipe columns, and the pipe rings of the multiple assembling units are provided with liquid discharging pipes. The hose of the upper assembly is communicated with the bowl body of the lower assembly in every two adjacent assemblies, every two adjacent assemblies are staggered in the circumferential direction of the pipe column, the liquid feeding pipe network is installed underground and provided with a first main pipe, a plurality of first branch pipes and a plurality of second branch pipes, the first main pipe is used for being connected with a nutrient solution storage tank, and the second main pipe is used for being connected with a second branch pipe. The first main pipe is communicated with a plurality of first branch pipes, each first branch pipe is communicated with a plurality of second branch pipes, the second branch pipes are arranged in the pipe column in a penetrating mode, the second branch pipes are communicated with the bowl body of the assembly at the highest position of the pipe column, and the backflow pipe network is communicated with the hose of the assembly at the lowest position of the pipe column. According to the invention, flexible production can be realized.
Owner:SOMAI AGRICULTURAL TECHNOLOGY (GANSU) CO LTD +2

Plastic pipeline cooling device

The utility model relates to the technical field of plastic pipeline cooling, and discloses a plastic pipeline cooling device which comprises a cooling table, a water storage tank fixedly connected to the center of the upper end face of the cooling table, an installation frame fixedly connected to the upper end face of the cooling table, a water pipe fixedly connected to the side wall of the water storage tank, and a flow dividing pipe fixedly connected to the end, away from the water storage tank, of the water pipe. The flow dividing pipes are fixedly connected to the mounting frame, the ends, away from the water pipes, of the flow dividing pipes are fixedly connected with sprayers, auxiliary rollers are symmetrically arranged in the cooling table, and the pipeline body is driven to rotate in the cooling process of the pipeline body, so that it can be guaranteed that all parts of the pipeline body are evenly sprayed with cooling liquid; the problem of local overheating or insufficient cooling is avoided, the situation that the pipeline body cracks due to stress concentration caused by temperature difference is reduced, and therefore the service life of the pipeline body is prolonged, cooling liquid can be more evenly distributed on the surface of the pipeline body, and the performance and quality of the pipeline body after cooling are improved.
Owner:SICHUAN HUIDA PIPE IND SCI & TECH CO LTD

Front bumper split charging clamp

The utility model relates to the technical field of automobile part production, in particular to a front bumper split charging clamp which comprises an AGV positioning trolley, a fixed supporting piece, a sliding switching piece and a supporting switching assembly, the fixed supporting piece comprises a first supporting block and a second supporting block, and the first supporting block and the second supporting block are used for supporting front bumpers of different automobile types. The first supporting blocks are symmetrically located on the top, close to one long side, of the AGV positioning trolley, and the second supporting blocks are symmetrically located on the top of the AGV positioning trolley. The front bumper is placed on the split charging clamp, then the buckles, the headlamp supports, the electric appliance elements and other components are split charged on the split charging clamp, and then the front bumper and the automobile body are assembled on the main line, so that the labor amount of the main line can be saved, dependence on the main line can be reduced, the production cost can be reduced, meanwhile, the risk of wrong assembly can be reduced, and the production efficiency is improved. In addition, by means of the method, the whole production process can be more flexible, and the production plan and the production line can be rapidly adjusted according to the requirements of orders.
Owner:WUHU JINGMAI AUTO PARTS CO LTD

Self-adaptive distribution device for box girder reinforcing steel bars

The invention discloses a box girder reinforcing steel bar self-adaptive distribution device which is used for distributing longitudinal reinforcing steel bars in box girder manufacturing and comprises a positioning module and a base, the positioning module comprises a plurality of supports, a plurality of positioning grooves and a locking assembly, the supports are arranged on the base and can move relative to the base, the positioning grooves correspond to the supports one to one, and the locking assembly is arranged on the positioning grooves. The positioning groove and the base are respectively positioned at two ends of the bracket; the locking assembly locks or unlocks the support on the base. The problem that traditional box girder steel bar arrangement depends on module customization is solved, the self-adaptive distribution device can automatically adjust the distance and the number of the supports according to the characteristics of different box girder products, so that diversified production requirements are met, the time cost of positioning module customization is not needed any more, the production efficiency is greatly improved, and the production cost is reduced. And meanwhile, the precision is ensured, and the mechanical property and durability of the box girder are improved.
Owner:上海道简机电科技有限公司

Granular ball, preparation method thereof and product containing granular ball

The invention discloses a granular ball, a preparation method thereof and a product containing the granular ball, and belongs to the technical field of health care. The granules are prepared from the following raw materials in parts by weight: 500-650 parts of vegetation matrix material powder, 80-140 parts of an excipient and 250-350 parts of a traditional Chinese medicine concentrated solution, the grass and tree matrix material powder is selected from bamboo, wood, straw or grass powder, and the excipient is selected from clayey soil, loam, sandy soil, red loam, yellow loam, black soil, desert soil, wet soil, lithologic soil or high mountain soil; the particle size of the grass and tree matrix material powder is 80-200 meshes; the traditional Chinese medicine concentrated solution is a concentrated solution containing traditional Chinese medicine components; the granular ball is obtained by mixing, granulating and polishing raw materials, and the size of the granular ball is 5-8mm. The pillow containing the particles is good in overall performance, so that the pillow has good use experience. The particles have high hardness and fluidity and low hygroscopicity and powder falling rate, and volatile components can be released for a long time.
Owner:HUBEI FENGCI KANGJIAN BIOTECHNOLOGY CO LTD

Organic fertilizer production process and equipment based on three-source fermentation

The invention relates to the technical field of organic fertilizer production, in particular to an organic fertilizer production process and equipment based on three-source fermentation, and the process comprises the following steps: crushing, screening and mixing fermentation raw materials to obtain a fermentation base material; stirring and mixing the fermentation base material, water and the fermentation culture medium additive to obtain a fermentation mixed matrix; stirring the fermentation mixed matrix for fermentation, obtaining the mixed gas production speed of mixed gas generated in the stirring process in the detection period to adjust the fermentation temperature in the fermentation tank, and detecting the microbial concentration to obtain the actual microbial concentration; the fermentation stirring speed is adjusted to meet the fermentation requirement under the condition that the microbial concentration cannot meet the fermentation requirement; whether fermentation is stopped or not is judged by detecting oxygen consumption and fermentation temperature changes, and the fermented mixed substrate is guided into an organic fertilizer separation device to obtain the organic fertilizer. By accurately controlling the particle size of the fermentation base material and adjusting the fermentation temperature, the microbial activity is improved, and the quality of the organic fertilizer is improved.
Owner:SHANDONG LUMING BIOTECHNOLOGY CO LTD

A multifunctional double-reel take-up and belting machine

ActiveCN110921417Bflexible productionIncrease productivityFilament handling
The present invention discloses a multifunctional double-reel take-up and tape-joining machine, comprising a pay-off frame, a bracket and a plurality of pay-off assemblies, wherein the plurality of pay-off assemblies are arranged on the bracket; a coating and curing system is arranged at a subsequent station of the pay-off frame, comprising a coating mold and a curing mechanism connected to the coating mold, and the optical fiber ribbon coated with resin by the coating mold enters the curing mechanism for curing; the take-up mechanism comprises a traction assembly, a wire storage assembly and a take-up assembly, which are arranged at a subsequent station of the coating and curing system, and are used to complete the take-up operation of the optical fiber ribbon. The present invention can configure relevant equipment according to production needs, realize flexible production, double the double-reel production efficiency, and nearly double the production efficiency of the optical fiber ribbon without changing the existing tape-joining production process as much as possible, so that the production efficiency and resource (personnel, energy consumption, equipment) utilization rate are significantly improved.
Owner:JIANGSU ETERN

Split multi-needle injection device

The present invention relates to the technical field of medical cosmetic equipment, and in particular to a split-type multi-needle injection device, in which a base and a needle table are of split design, a receiving groove is provided at one end of the base, the needle table is inserted into the receiving groove and fixed to the receiving groove by glue packaging, a plurality of parallel needle grooves are provided on the side of the needle table, a needle tube is fixed in the needle groove by glue dot, and the other end of the base is connected to a syringe, and the syringe is connected to the needle tube. Compared with the prior art, the split-type multi-needle injection device of the present invention changes the traditional process of directly vertically inserting the needle tube for assembly through the split design of the base and the needle table, which can greatly improve the assembly efficiency of the needle tube and improve the assembly accuracy; and the gap between the needle tubes can be more refined, the distance between the needle tubes can be reduced, and the injection pain can be reduced; the number of needle tubes can be adjusted according to the number of needle grooves, and injection devices with different requirements for the number of needle tubes in different usage scenarios can be produced on demand, which is flexible in production and easy to adapt, and improves the applicability of the product.
Owner:SHENZHEN ZHONGKE BORUISI MEDICAL TECH CO LTD

Corrugated paper forming device, adsorption force enhancing device and air suction width adjusting method

PendingCN121989505AImprove adsorption capacitySolve the core technical problem of difficult adaptation of adsorption forceMechanical working/deformationAir volumePaper production
The invention relates to the technical field of corrugated paper production, and particularly discloses a corrugated paper forming device, an adsorption force enhancing device and an air suction width adjusting method, the corrugated paper forming device comprises a corrugated roller, a bottom roller and the adsorption force enhancing device, the adsorption force enhancing device comprises an air suction cover, and at least one rotatable adjusting baffle is arranged in an air inlet channel of the air suction cover. By driving the adjusting baffle to be switched between the blocking state and the conducting state, the effective width for adsorption in the air inlet duct can be dynamically changed. When narrow corrugated paper is produced, the adjusting baffle is in a blocking state, air volume can be concentrated, local adsorption force can be enhanced, and the problem of edge collapse in the narrow production process is solved. When wide corrugated paper is produced, the adjusting baffle is in a conducting state, and full-width uniform adsorption is guaranteed. The single air suction cover can be compatible with various paper web specifications and does not need to be replaced, rapid and automatic wide-narrow production switching is achieved, the production flexibility and the product quality stability are improved, and the equipment cost and the maintenance complexity are reduced.
Owner:GUANGDONG FOSBER INTELLIGENT EQUIP CO LTD

Post-tensioned precast concrete support member, internal support system and construction method

The present invention belongs to the field of underground foundation pit engineering, and specifically relates to a post-tensioned precast concrete support member and construction method, including a concrete structure and two end steel structures; the concrete structure includes concrete with a hollow portion running through the support direction, a steel skeleton and a plurality of corrugated pipes are arranged in the concrete, and the two ends of the steel skeleton are respectively connected to the two end steel structures; each corrugated pipe is tensioned with prestressed longitudinal bars and poured with cement slurry, and both ends of the prestressed longitudinal bars extend out of the corrugated pipe and are anchored in the end steel structure through anchors; the present invention also provides an internal support system and construction method, the assembled internal support adopted by the system is spliced ​​by the above-mentioned post-tensioned precast concrete support members, and the two ends of the assembled support are respectively supported on the vertical adjustment and positioning devices on both sides and connected to the embedded parts on both sides. The present invention can improve the bearing capacity, deformation resistance, integrity and node stiffness of the assembled support, and can also achieve vertical precision construction.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD

Device and method for preparing refractory metal or low-valence oxide powder

The invention provides a device and method for preparing refractory metal or low-valence oxide powder, and relates to the technical field of metallurgical processes. The device comprises a feeding transition area, a heating reaction area and a water-cooling passivation area which are sequentially arranged in a furnace tube, gates are arranged between the feeding transition area and the heating reaction area, between the heating reaction area and the water-cooling passivation area, at one end, far away from the heating reaction area, of the feeding transition area and at one end, far away from the heating reaction area, of the water-cooling passivation area; the feeding transition area, the heating reaction area and the water-cooling passivation area are respectively provided with an independent argon supply system; the heating reaction area is also provided with a vacuum system, a condensation collector and a heating furnace body; and the water cooling passivation area is provided with a water cooling device. According to the device, multiple batches of materials can be intermittently reduced, the defect that a pit furnace can only reduce one batch of materials at a time is overcome, large-scale production of refractory metal or low-valence oxide powder is achieved, the reduction efficiency is improved, and the requirement of industrial production can be met.
Owner:ZHENGZHOU UNIV

A cementitious material for mine backfilling and its preparation method

This invention discloses a mine backfill cementitious material and its preparation method. The mine backfill cementitious material of this invention comprises the following components in the following mass ratios: high belite sulfoaluminate cement clinker: 3-8 wt%; high free calcium silicate cement clinker: 1-3 wt%; granulated blast furnace slag powder or granulated blast furnace slag: 74-85 wt%; gypsum: 10-18 wt%. Compared with other paste-like backfill materials of the same strength, the cementitious material of this invention solves the problems of poor activation effect, poor mechanical properties affecting the mine backfilling effect, and high cost due to large amount of cementitious material used in existing mine backfill cementitious materials. At the same time, it not only reduces the proportion of cementitious material used, but also fully meets the requirements of mine backfilling projects.
Owner:JIAHUA SPECIAL CEMENT

Production and processing technology and processing equipment for five-star foot

The invention discloses a five-star foot production processing technology and processing equipment, which are used for processing a workpiece into a five-star foot, and the processing technology comprises the following steps: taking an insert, placing the insert, taking the workpiece, punching, cooling, reaming and blanking. Wherein the grabbing device grabs the workpiece, when the workpiece is placed on the punching station, the five-claw appearance of the workpiece is adopted for positioning, and when the workpiece is placed on the reaming station, the five-claw appearance and the center hole are adopted for positioning. According to the five-star foot production and machining technology and machining equipment, the machining cost can be reduced, and the machining efficiency can be improved.
Owner:JINHUA JUNHONG INTELLIGENT TECH CO LTD

Nested partitioned vacuum insert for film-coated injection molds

ActiveCN121650179Bprevent local gapsAdequate adsorption capacityVacuum gapPumping vacuum
This invention provides a nested, zoned, controlled vacuum insert for film-coated injection molds. A first cavity is provided on the core-side main insert, and an external vacuum insert is disposed within the first cavity. A first vacuum gap, communicating with the cavity, is formed between the outer wall of the external vacuum insert and the inner wall of the first cavity. A first air passage is provided on the external vacuum insert, communicating with the first vacuum gap to form an outer air passage. A second cavity is provided on the external vacuum insert, and an internal vacuum insert is disposed within the second cavity. A second vacuum gap, communicating with the cavity, is formed between the outer wall of the internal vacuum insert and the inner wall of the second cavity. A second air passage is provided on the internal vacuum insert, communicating with the second vacuum gap to form an inner air passage. A main air passage, communicating with an external vacuum device, is provided on the insert body. The first and second air passages are connected to the main air passage. The overall design of this invention is simple, with a reasonable distribution of adsorption force, and also incorporates the characteristics of flexible production.
Owner:MARELLI CHINA +1

A low-warpage polyamide modified material, mining truck oil cylinder guide ring and preparation process thereof

ActiveCN116239885BSolve warping deformationImprove lateral strengthFiberPolymer science
The present invention relates to a low-warpage polyamide modified material, comprising the following components in parts by weight: 30 to 85 parts of base resin, 5 to 40 parts of a first reinforcing component, 10 to 30 parts of a second reinforcing component, 0.1 to 2 parts of a lubricant, 0.1 to 1 part of an antioxidant, and 1 to 10 parts of an anti-wear agent, wherein the first reinforcing component is an alkali-free flat glass fiber modified by a coupling agent; the second reinforcing component is one or more of wollastonite, calcium carbonate, mica powder, talcum powder, and glass microbeads. The present invention not only enhances the strength of the material by compounding inorganic mineral powder with flat glass fiber, but also solves the problem of warpage deformation of high-component glass fiber reinforced materials after injection molding; the flat glass fiber not only enhances the lateral strength, but also enhances the longitudinal strength, and has better low warpage and compressive strength. The guide ring of the oil cylinder of a mining truck produced with the material has no floating fibers, low gloss, and small deformation.
Owner:SHANXI TAIBAO SEALING TECH CO LTD

Electrolytic tank for electrolyzing manganese metal

ActiveCN222455256Uflexible production
The utility model discloses an electrolytic bath for electrolyzing manganese metal, which comprises a bath body and a diaphragm frame assembly, the diaphragm frame assembly comprises a plurality of cathode frames, anode frames and diaphragm bags, cathode plates are arranged in the cathode frames, anode plates are arranged in the anode frames, partition plates are arranged in the cathode frames, and the partition plates divide the cathode frames into cathode liquid areas and anode liquid areas. A plurality of first positioning through grooves are formed in a transverse plate at the top of the catholyte area at intervals, the anolyte area extends towards the side face to form a convex frame, one side of the convex frame extends to form a convex part, a plurality of first positioning notches are formed in the convex part at intervals, a plurality of second positioning through grooves are formed in the convex frame at intervals, and the anode frame is inserted into the cathode frame through the first positioning notches and the second positioning through grooves. A sealing plate is detachably arranged in the second positioning through groove, a third positioning through groove is formed in the top of the anode frame, and a plurality of first through holes are formed in the bottom of the anode frame. According to the utility model, the distance between the anode frame and the cathode plate can be adjusted on the cathode frame, so that the polar distance is flexibly adjusted, and energy conservation and consumption reduction are realized.
Owner:GUANGXI TIANYANG GUIHANG MANGANESE IND CO LTD

Continuous production line and production equipment of high flame-retardant glass steel plate

This utility model relates to the field of flame-retardant glass production technology, specifically to a continuous production line and equipment for high flame-retardant fiberglass sheets. The production line has a raw material processing unit, a curing unit, and a post-processing unit arranged sequentially in the conveying direction. The raw material processing unit includes a fiber weaving device, and the curing unit includes a curing furnace and a steam furnace. In the conveying direction, the steam furnace is located downstream of the curing furnace. This production line allows raw materials to be mixed in the raw material processing unit, cured in the curing unit, and post-processed in the post-processing unit to directly obtain high flame-retardant fiberglass sheets, achieving continuous production. The fiber weaving device can adjust the product width and density online, enabling personalized customization and flexible production. The steam furnace can cross-link and cure the inorganic resin in the raw materials, ensuring the stable quality of the high flame-retardant fiberglass sheets and improving production efficiency.
Owner:SHANDONG YUANSHI NEW MATERIALS CO LTD