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81results about How to "Reduce quality impact" patented technology

A kind of environmental protection treatment device for recycling waste tire rubber

The present invention relates to the field of tire processing technology, in particular to an environmentally friendly processing device for recycling and utilizing waste tire rubber, comprising a crushing box, a first material guide block is provided at the lower left end of the crushing box, a first belt conveyor is provided on the first material guide block, a crushing assembly is provided inside the crushing box, a screening box is provided at the left end of the first belt conveyor, a disc screen assembly is provided inside the screening box, two support blocks are fixedly provided on the outer wall of the screening box in a symmetrical structure, a reflux block is installed at the lower end of the screening box, the reflux block is in an inclined structure, the lower right end of the reflux block is connected to the upper end of the crushing box, a second material guide block is provided at the lower end of the screening box, and a steel wire processing box is provided at one end of the second material guide block. It is convenient to crush and separate steel wire and rubber in waste tires, ensure the efficient separation of steel wire and rubber, improve the processing efficiency and crushing effect of waste rubber tires, improve the quality of recycled rubber, and provide strong technical support for the recycling and utilization of waste tires.
Owner:LINYI CHEERTAI RUBBER CO LTD

Watermark adding method and system

The invention relates to the technical field of watermark generation, and discloses a watermark adding method and system, and the method comprises the steps: obtaining an original video stream, and carrying out the preprocessing and decoding of the original video stream, and obtaining an uncompressed video frame; generating a to-be-embedded watermark content according to a specific scene and a demand; distributing the generated watermark content to be embedded and the obtained uncompressed video frame to a plurality of CPU threads for parallel processing; judging whether the system is in a high-load state or not according to the utilization rates of the CPU and the GPU, if the system is in the high-load state, embedding the watermark content into the uncompressed video frame by using an LSB-based watermark algorithm to obtain a to-be-compressed video frame, and if the system is not in the high-load state, embedding the watermark content into the uncompressed video frame by using a DCT-based watermark algorithm to obtain a to-be-compressed video frame; obtaining a to-be-compressed video frame; and compressing and outputting the to-be-compressed video frame. The watermark processing efficiency can be effectively improved, and meanwhile the video quality is guaranteed.
Owner:DALIAN HAITIAN IND TECH CO LTD

Guide feeding equipment for fastener production and machining

The invention discloses guide feeding equipment for fastener production and machining, and relates to the technical field of machine manufacturing. The tops of the supporting legs are fixedly connected with the bottom of the shell, and the supporting legs are annularly arrayed along the central axis of the shell; the top of the guide block is fixedly connected with the inner wall of the bottom of the shell; the outer wall of the clearing assembly is fixedly connected with the outer wall of the shell; the outer wall of the air inlet pipe is fixedly connected with the inner wall of the bottom of the shell; according to the device, the cleaning assembly is arranged, gas entering a cleaning pipe is sprayed out of the cleaning pipe along an inclined groove, the blown gas can be blown to a fastener, and therefore dust on the fastener is cleaned, gas exhausted by a sliding shell is used for secondary utilization, the gas is blown out through the inclined groove in the cleaning pipe, and impurities such as dust on the fastener can be cleaned; and the cleanliness of the fastener is improved.
Owner:XUZHOU HENGQI INTELLIGENT MFG CO LTD

GH5605 cobalt-based high-temperature alloy and manufacturing method thereof

PendingCN119553142Areduce vacuumSolve uneven compositionIncreasing energy efficiencyChemical compositionIngot
The invention relates to a GH5605 cobalt-based high-temperature alloy and a manufacturing method thereof, and belongs to the technical field of metal smelting. The GH5605 alloy comprises the following chemical components: 0.05%-0.15% of C, less than or equal to 1.0% of Si, 1.0%-2.0% of Mn, less than or equal to 0.03% of S, less than or equal to 0.03% of P, 19.0%-21.0% of Cr, 9.0%-11.0% of Ni, 14.0%-16.0% of W, less than or equal to 3.0% of Fe and the balance of Co and other inevitable impurities. According to the manufacturing method, the GH5605 electrode bar is smelted through a vacuum induction furnace, refining and argon protection processes are adopted, and it is ensured that the Mn element content of the electrode bar is qualified. And in the vacuum consumable remelting process, argon with the pressure of 2000-3000 Pa is filled, so that the vacuum degree is reduced, Mn element volatilization is effectively inhibited, and section component uniformity is achieved. Detection shows that the Mn content at the edge, the 1 / 2 radius and the central part of the steel ingot meets the technical standard. The process is simple and efficient, the quality of molten steel is not affected, the performance consistency and production stability of the GH5605 steel ingot are remarkably improved, and the process is suitable for the high-end application field.
Owner:JIANGXI BAOSHUNCHANG SPECIAL ALLOY CO LTD

Box girder mold structure

The utility model relates to a box girder mould structure which comprises an outer mould and an inner mould, the outer mould comprises an outer mould bottom plate, two outer mould side plates and two outer mould end plates, the outer mould bottom plate is supported on a mould base, the two box girder side plates are connected with two mould opening and closing mechanisms in a one-to-one correspondence mode, each mould opening and closing mechanism comprises a fixing frame and a telescopic rod, one end of each telescopic rod is hinged to the fixing frame, and the other end of each telescopic rod is hinged to the mould base. The other end of the telescopic rod is connected with the outer mold side plate, the outer mold bottom plate is provided with an expansion groove, the diffusion cavity is provided with a feeding gap, the feeding gap is communicated with the box girder cavity, and the lower end of the expansion groove is provided with a sealing structure for sealing the expansion groove. And a cutter strip for sealing the feeding gap and a cutter driving cylinder for driving the cutter strip to open and close are arranged on the outer mold bottom plate. According to the box girder forming method, the compactness of the two lower corners of the formed box girder can be high, and the problem that the compactness of the two lower corners of an existing manufactured box girder is poor is solved.
Owner:ZHEJIANG COMM CONSTR GRP CO LTD +1

Steam curing type production line of concrete box girder

The utility model relates to a steam curing type production line of a concrete box girder, which comprises a track, a trolley, a curing chamber arranged at one end of the track and a box girder mould arranged at the other end of the track, the trolley comprises a trolley bottom plate, and a front-side elastic sealing piece, a left-side elastic sealing piece, a right-side elastic sealing piece and a sealing curtain are arranged in the curing chamber. The upper end of the sealing curtain is connected with a top plate of the curing chamber in a sealed mode, the lower end of the sealing curtain is connected to the rear end of the left elastic sealing piece and the rear end of the right elastic sealing piece in a sealed and lapped mode, a steam spraying nozzle for spraying steam into the sealing chamber is arranged in the curing chamber and located above the front elastic sealing piece, and a trolley access door opening is formed in the rear end of the curing chamber. The rail extends in the front-back direction. The steam curing device has the advantages that steam can be saved, watering curing is replaced, the curing efficiency is high, and the quality is good.
Owner:ZHEJIANG COMM CONSTR GRP CO LTD +1

Cooling device for polycarbonate plate production

The invention provides a polycarbonate sheet production cooling device, and relates to the technical field, the polycarbonate sheet production cooling device comprises an air cooling box, an air cooling channel is arranged on the air cooling box in a penetrating manner, a plurality of linearly arranged temperature sensing rollers are rotatably mounted in the air cooling channel, the temperature sensing rollers are used for conveying polycarbonate sheets, a fan is further mounted in the air cooling channel, and the temperature sensing rollers are used for conveying the polycarbonate sheets. And a cold air inlet communicated with the air cooling channel is formed in the air cooling box. According to the cooling device for polycarbonate sheet production, through the arrangement of the air cooling box, the air cooling channel, the temperature sensing roller, the fan, the plugging piece and the transfer structure, the amount of cold air entering the air cooling channel can be controlled according to the temperature condition of a polycarbonate sheet; accordingly, corresponding gradual cooling can be conducted according to the temperature of the polycarbonate plate, no power source is used in the whole structure for controlling the cold air amount, the vibration influence on the device is reduced, and the influence of vibration of the device on the quality of the polycarbonate plate is reduced.
Owner:HANHAI NEW MATERIALS (NANTONG) CO LTD

Mould for automatically cutting off large gate of multi-cavity mould

ActiveCN222290795UReduce quality impactReduce the probability of driftPhysicsNozzle
The utility model relates to a multi-cavity die edge gate automatic cut-off die which comprises a lower die and an upper die detachably arranged on the lower die, a plurality of upper die cavities are formed in the side, facing the lower die, of the upper die, a plurality of lower die cavities corresponding to the upper die cavities are formed in the side, facing the upper die, of the lower die, and runners for connecting all the lower die cavities are arranged between the lower die cavities. A runner is arranged in the upper die, a sprue gate penetrating through the upper die is formed in the upper die and communicated with the runner, a cutter is arranged at the joint of the runner and the lower die cavity in the lower die in a sliding mode, and the cutter slides into the runner to separate the runner from the lower die cavity. The device has the effect of reducing the influence of material head separation on the water gap quality.
Owner:ZHEJIANG VICPIC PLASTIC IND CO LTD

Automatic radix puerariae powder production process

The invention discloses an automatic kudzu vine root powder production technology, and relates to the technical field of kudzu vine root powder production, and the technology comprises the following steps: S1, cleaning; s2, performing draining; s3, performing peeling treatment; s4, obtaining radix puerariae slices; s5, obtaining dried radix puerariae slices; s6, obtaining radix puerariae powder; the kudzuvine root powder is processed and prepared through the automatic kudzuvine root powder production technology, the production efficiency of the kudzuvine root powder is greatly improved, and meanwhile the stability of the quality of the kudzuvine root powder is ensured. Compared with a traditional manual production mode, the automatic production process has the advantages that the manual labor can be greatly reduced, the influence of inaccuracy of manual operation on the quality of the radix puerariae powder can be effectively reduced, and the quality stability of the radix puerariae powder produced in each batch is greatly ensured.
Owner:JING COUNTY TAOHUATAN HONGE MANOR CO LTD

Video coding method and device, equipment, storage medium and program product

The embodiment of the invention provides a video coding method and device, equipment, a storage medium and a program product, and the method comprises the steps: obtaining a to-be-coded video frame sequence and a corresponding video frame rate, and enabling the video frame sequence to comprise video frames; in the process of encoding the video frames, under the condition that it is detected that the currently encoded video frame does not contain a face region and the video frame rate is greater than a set frame rate threshold, determining whether a to-be-evaluated video frame within a preset duration after the currently encoded video frame is a static frame, and calculating the proportion of a skin region in the to-be-evaluated video frame; and when the to-be-evaluated video frame is a static frame and the proportion of the skin area is in a preset threshold interval, coding the video frame detected as the static frame after the to-be-evaluated video frame based on the gradually increasing minimum quantization parameter value. According to the scheme, the video coding rate is saved under the condition that the subjective video quality is hardly lost, the coding efficiency is improved, and the video watching experience of a user is optimized.
Owner:BIGO TECH PTE LTD

Drying device for embedded bathroom cabinet washing machine all-in-one machine

The utility model relates to the technical field of washing machines, and discloses a drying device for an embedded bathroom cabinet washing machine all-in-one machine, the drying device comprises an exhaust pipe and a collection box, the exhaust pipe is arranged between a cabinet and an outer cylinder; the air inlet end of the exhaust pipe is communicated with an outer barrel of the washing machine; the air outlet end part of the exhaust pipe is arranged outside the cabinet body; the position, close to the air outlet end, of the exhaust pipe is lower than the position, close to the air inlet end, of the exhaust pipe. The collecting box is communicated with the exhaust pipe. The drying device has the effect of reducing the possibility that the interior of the cabinet body is moistened by damp and hot gas exhausted by the drying device.
Owner:LUXURY JIA (WUXI) ELECTRICAL APPLIANCES CO LTD +1

A method of installing a slurry pump

ActiveCN116181698BImprove test run pass rateImproved one-time installation success rateSpecific fluid pumpsPump componentsSlurry pumpPhysics
The present application belongs to the field of centrifugal pump, and particularly relates to a mounting method of a slurry pump, which comprises seven steps, i.e. firstly fixing a bearing body assembly to a bracket body and installing an adjusting screw, then fixing a pump body to the bracket body, then measuring the round run-out of an inner hole and an end face of the pump body and requiring to meet the requirements, then opening two positioning pin holes at a connecting part, then installing a sealing assembly, a secondary impeller and a rear backplate, then installing a primary impeller, then installing a sheath and a front backplate, then installing an inlet cone pipe outside a pump cover and connecting and fixing by fastening bolts, and finally adjusting the gap between the primary impeller and the front backplate, fastening the sealing assembly, fastening the primary impeller, and performing disc checking without friction; the present application correctly installs the slurry pump, improves the qualified rate of one-time trial, and thus improves the service life of the pump.
Owner:SHANDONG ZHANGQIU BLOWER

Lead zinc ore flotation method for strengthening recovery of micro-fine particle galena

The lead-zinc ore flotation method comprises the following steps that raw ore is ground to be fine, after a sulfur inhibitor, a zinc inhibitor, a lead collecting agent, a lead flocculating agent and a foaming agent are sequentially added, lead concentrate is obtained through flotation, after the sulfur inhibitor, a zinc activating agent, the zinc collecting agent and the foaming agent are sequentially added into lead flotation tailings, the lead concentrate is obtained through flotation; and zinc concentrate is obtained through flotation. According to the method, the technological process is simple and convenient, industrial production is easy, the adaptability to ore grinding products containing the micro-fine-particle galena is high, the flotation recovery rate of the micro-fine-particle galena can be increased, the quality of zinc concentrate is guaranteed, and better lead-zinc flotation indexes are obtained.
Owner:CENT SOUTH UNIV

Quick response X-ray scanning device based on micro-electro-mechanical chip

The invention relates to the technical field of scanning devices, in particular to a quick response X-ray scanning device based on a micro-electro-mechanical chip, which comprises a detection table, a photoelectric sensor is arranged in the detection table, a plurality of positioning blocks are arranged on the detection table, and a table top of the detection table is used for bearing an object to be imaged; the X-ray source is arranged above the detection table and can emit X-rays to the direction of the detection table, and the X-ray source is connected with a movable support capable of driving the X-ray source to move; the detector is connected with the detection table and can receive the X-rays penetrating through the object to be imaged and convert the X-rays into digital signals; the detection table fixes the position of an object to be imaged through the positioning block, the image acquisition module acquires an image of the detection table, and the control module adjusts the position of the X-ray source according to the position of the object to be imaged on the image so as to completely scan the object to be imaged. By accurately positioning the position of the object to be imaged and standardizing the image of the object to be imaged, the accuracy and reliability of the whole scanning process are improved, and the scanning efficiency and the imaging quality are improved.
Owner:THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL

Tunnel type drying room

The utility model discloses a tunnel type drying room, and relates to the technical field of material processing. A tunnel type drying room comprises a drying room body, a feeding port is formed in one end of the drying room body, a discharging port is formed in one side of the drying room body, cover plates are hinged to the interiors of the feeding port and the discharging port, two symmetrical electric sliding rails are installed in the drying room body, a first fan is fixed to the upper end of the drying room body, and an exhaust pipe is fixed to the lower end of the first fan. The exhaust pipe extends into the drying room body, a heating pipe is arranged in the drying room body, the exhaust pipe corresponds to the heating pipe, a partition plate is fixed in the drying room body, a fixed pipe is fixed on one side of the drying room body, and an adjusting mechanism is arranged between the fixed pipe and the drying room body. And through the adjusting mechanism, the distance between the heating pipe and the medicinal materials can be conveniently adjusted, the size of the fixing pipe can be conveniently adjusted, adjustment can be conveniently carried out according to the material types and heated requirements, and the medicinal materials and the materials can be conveniently and evenly heated.
Owner:SHANGHAI YANGHETANG CHINESE HERBAL PIECES CO LTD

Air source absorption heat pump system

An air source absorption heat pump system comprises a refrigerant circulation pipeline and an absorbent circulation pipeline, a generator, a condenser, an evaporator and an absorber are sequentially installed and connected on the refrigerant circulation pipeline, and a first throttling device is arranged between the condenser and the evaporator; the absorbent circulating pipeline is arranged between the generator and the absorber; a solution pipeline is arranged between the absorber and the generator, and a solution pump is arranged on the solution pipeline. By the adoption of the technical scheme, driving energy of the gas heat pump is natural gas environment-friendly energy, low-level heat energy (such as heat contained in air) is converted into available high-level heat energy, the energy utilization rate is increased, and the influence of system work on air quality is reduced.
Owner:CECEP GUIZHOU BUILDING ENERGY CO LTD

Preparation method of silicon nitride powder

The invention relates to the technical field of inorganic non-metallic materials, provides a preparation method of silicon nitride powder, and solves the problems that the content of alpha-Si3N4 in the silicon nitride powder prepared in the prior art is low, the quality is relatively poor and the nitriding time is long. Comprising the following preparation steps: 1) preparing raw materials; 2) ball-milling the raw materials; 3) primary sintering; 4) secondary sintering; and 5) grinding to obtain the silicon nitride powder.
Owner:FUJIAN HUAQING ELECTRONICS MATERIAL TECH

Vibration parameter testing device

The utility model provides a vibration parameter testing device which comprises the components of a supporting seat which comprises a vibration isolation substrate and a fixing member which is arranged on the vibration isolation substrate; the fixed end of the cantilever beam is detachably connected to the fixed part, the cantilever beam is horizontally suspended, the cantilever beam extends above the vibration isolation substrate and is located in the projection of the vibration isolation substrate, and a detection point is arranged on the surface of the cantilever beam; the light sensing measuring piece is connected to the detection point; and the acquisition assembly is electrically connected with the light sensing measurement part and is used for acquiring measurement parameters. The vibration parameter testing device is used for testing the vibration parameters of the cantilever beam. The vibration parameter testing device can be used for carrying out experiments of various working conditions and comparing measurement results with theoretical values to analyze errors.
Owner:JIANGNAN SHIPYARD (GRP) CO LTD

Synchronous regulating valve

The invention relates to a synchronous regulating valve, and relates to the technical field of regulating valves. Comprising a valve body, an adjusting piece and a valve element, the adjusting part comprises a valve seat sliding in the length direction of an inner cavity of the valve body and a piston disc arranged on the valve seat, the valve seat is arranged in the inner cavity of the valve body in a sliding mode in the length direction of the valve body, the piston disc is arranged in a valve cylinder of the valve body in a sliding mode, limiting claws are arranged in the valve body, and a valve element is jointly installed on the limiting claws. The invention can solve the following problems in the prior art: according to the stroke characteristics, the existing regulating valve only has a straight-through type and an angular-direction type, the straight-through type flow channel is Z-shaped, the angular-direction type flow channel is L-shaped, and the two channels have the same characteristic, that is, a medium passes through at least one curve when passing through. Under long-term flowing and scouring of media, a bend is extremely prone to being scoured by the media, the phenomenon of inner leakage or even outer leakage of the valve is caused, and therefore the service life of the whole regulating valve is affected.
Owner:NINGBO TIANJILONG INTELLIGENT CONTROL TECH

PVC pipe traction machine

The utility model provides a PVC pipe tractor which comprises a support, a shell arranged above the support and a traction assembly installed on the shell, the shell is of a cylindrical structure with the two ends open, and the traction assembly comprises an installation frame, a plurality of traction idler wheels arranged in the installation frame and a driving motor arranged on the installation frame. The installation frame is of an annular frame structure and is arranged on the inner edge of the shell, all the traction rollers are connected end to end in a chain mode and are sequentially and mutually in driving connection to form a whole, and the traction roller located at the head end is in driving connection with a motor. According to the utility model, the plurality of traction rollers are arranged to be of an annular structure, so that the pressure intensity of a single contact point is reduced by uniformly distributing the pressure, and the probability of deformation of the PVC pipe caused by the pressure on the PVC pipe is reduced; besides, the more the traction rollers are, the smaller the area where the PVC pipe deforms under pressure is, the deformation of the PVC pipe is not obvious, and the influence on the quality of the PVC pipe is smaller.
Owner:HUBEI JIXIANG PLASTIC CO LTD

Image interpolation method based on high dimension

The invention relates to the technical field of computer vision and image processing, and discloses an image interpolation method based on high dimensionality. The method comprises the following steps: establishing a video decoder module, a timestamp analysis module, a feature extraction module, a time sequence correlation modeling module, a time sequence correlation modeling module, a convolutional neural network module, an edge smoothing module, an edge detection module, an edge enhancement module, an image output module and a quality evaluation module; the time stamp analysis module records time points and positions; the feature extraction module extracts image edge feature data; the time sequence correlation modeling module captures time and spatial correlation data; the convolutional neural network module performs pixel-level interpolation on image frames; the edge enhancement module is used for enhancing edge pixel points, the image output module is used for generating high-quality interpolation image frames, and the quality evaluation module is used for carrying out quality inspection on the generated image.
Owner:BEIJING INFORMATION TECH BOTE INTELLIGENT TECH CO LTD

Viscosity pump heating protection device

The utility model provides a viscosity pump heating protection device which comprises a base, a viscosity pump body is arranged on the upper end face of the base, a moving assembly is arranged on the base, two supporting blocks which are symmetrically arranged are arranged on the upper end face of the base, one ends of the two supporting blocks are jointly and fixedly connected with a heating cavity, and the other ends of the two supporting blocks are fixedly connected with the base. A dustproof assembly is arranged on the heating cavity; a heating assembly; the heating assembly comprises an air inlet pipe arranged on a heating cavity, a disc is arranged in the heating cavity, a plurality of heating rods are arranged on the side wall of the disc, an air outlet pipe is arranged on the heating cavity, and an air guide pipe is arranged on the air outlet pipe. According to the viscosity pump, air can be absorbed and heated and then is fed into the viscosity pump body, so that preheating work of the viscosity pump body before work is completed, dust removal can be carried out on the absorbed air, and the working quality of the viscosity pump body is improved.
Owner:DONGYING BOWEN ENVIRONMENTAL PROTECTION TECH CO LTD

Clothing template machine

The utility model discloses a clothing template machine, which relates to the technical field of clothing templates and comprises an operating platform and a scraper, a support plate is fixedly arranged on one side of the operating platform, a pair of support columns are fixedly arranged on the support plate, a first support frame is fixedly arranged on the operating platform, and a pair of first electric push rods are fixedly arranged on the first support frame. A pressing plate is fixedly arranged on the pair of first electric push rods, a pair of sliding grooves are formed in the operation table, and threaded rods are rotationally arranged in the sliding grooves. Through cooperative use of the first supporting frame, the first electric push rod, the pressing plate, the second supporting frame, the second electric push rod, the connecting plate, the round rod, the spring and the scraping plate, when a drawing is flatly laid on the operation table, the drawing can be flatly laid to be prevented from being bent, and through cooperative use of the supporting rod, the round cross rod and the rocker, the drawing can be conveniently and rapidly laid. And after cutting is completed, waste drawings can be collected, and the drawings can be flattened again.
Owner:LIXIN COUNTY XIANGLIYUN CLOTHING CO LTD

Spraying device for surface treatment of automobile parts

The utility model relates to a spraying device for automobile part surface treatment, which relates to the technical field of automobile part processing devices and comprises a base, a support frame and a fixing frame are arranged on the base, a driving motor is arranged on the support frame, an output end of the driving motor is connected with a rotating shaft, and a rotating frame is arranged on the rotating shaft. A plurality of containing grooves used for containing automobile parts are formed in the rotating frame, a support is arranged at the top of the fixing frame, a central axis is arranged on the support, the central axis inclines downwards by 45 degrees and penetrates through the central line of the rotating shaft, two protective covers which slide relatively and synchronously are symmetrically arranged on the support relative to the central axis, and a driving assembly used for driving the protective covers is arranged on the support. A spraying pipe is arranged on the protective cover, the output end of the spraying pipe is connected with a plurality of spray heads, and the spray heads are evenly distributed on the inner surface of the protective cover. The spraying device for automobile part surface treatment has the effect of reducing the influence on the air quality in the spraying process.
Owner:NORTHEAST FORESTRY UNIV

Green leaf vegetable fresh-keeping composite film containing nicotinamide and preparation method of green leaf vegetable fresh-keeping composite film

ActiveCN119529456AGood fresh-keeping effectImprove gas transmissionFlexible coversWrappersAcetic acidComposite film
The invention relates to the field of new packaging materials, and provides a composite film for fresh-keeping of green leaf vegetables and a preparation method thereof, the main raw materials of the composite film comprise a base material, citric acid, glacial acetic acid and nicotinamide; wherein the base material is a mixture of chitosan and polyvinyl alcohol; the preparation method comprises the following steps: dissolving and mixing the chitosan and the polyvinyl alcohol, adding a nicotinamide solution, stirring and carrying out ultrasonic treatment to uniformly distribute the components, and finally forming the film by adopting a tape casting process. The composite film can effectively delay oxidation and decay of the green vegetables and remarkably prolong the shelf life of the green vegetables. The composite film has good mechanical properties and flexibility, and is suitable for various fresh-keeping applications. The preparation process is simple, large-scale production is easy, and the material is environment-friendly and biodegradable and has a wide application prospect.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

A method for optimizing the transformation of the original prefabricated pipe pile tower crane foundation on a deep soft foundation

The invention discloses a transformation and optimization method for an original prefabricated pipe pile tower crane foundation on a deep soft foundation. The method determines the pipe pile positions that can enter the rock in the original prefabricated pipe piles of the floor on the tower crane foundation construction area according to the geological conditions of the tower crane foundation construction area and the stress load of the tower crane foundation, and then drives the pipe piles at the corresponding positions into the rock layer by using the method of leading holes into the rock, and the driving depths of the original prefabricated pipe piles of the floor at other positions remain unchanged. After the pipe pile driving is completed and a rest period is performed according to the interval of the stratum soil quality, the rock-entering pipe piles are subjected to high strain detection, and the pipe pile core pouring construction is performed after the qualified ones are qualified, and finally the tower crane foundation is arranged on the pipe piles, and the tower crane is installed on the tower crane foundation. The existing pipe piles in the tower crane construction area are transformed to make them suitable for the deep soft geology, so as to avoid adding new piles, reduce the manufacturing and construction costs of the new piles, and also reduce the interference to the environment and the consumption of resources, thereby meeting the requirements of green construction and sustainable development.
Owner:SHANGHAI CONSTRUCTION FOURTH CONSTRUCTION GROUP CO LTD

A post-plating roller surface wet cleaning device and method for a hot galvanizing unit

The application discloses a post-plating roll surface wet cleaning device of a hot galvanizing unit, which comprises a cleaning liquid supply pipeline, a moving track and a cleaning liquid spraying unit; the cleaning liquid supply pipeline is communicated with the cleaning liquid spraying unit; a ball valve, a pressure reducing valve, a filtering unit and an adjusting valve are sequentially arranged on the cleaning liquid supply pipeline along a medium flow direction; the moving track is provided with a plurality of moving tracks corresponding to the upper surface and the lower surface of the strip steel respectively and is laid along the length of the strip steel; the cleaning liquid spraying unit is provided with a plurality of cleaning liquid spraying units arranged on the corresponding moving tracks and moving along the moving tracks. The application further discloses a post-plating roll surface wet cleaning method of the hot galvanizing unit. The application solves the problems of high occurrence rate, large fluctuation and high safety risk of manual roll cleaning of the existing foreign matter pressing-in defect.
Owner:BAOSTEEL NIPPON STEEL AUTO SHEET CO LTD

Metal powder pressing demolding device

The invention belongs to the technical field of compression molding, and particularly relates to a metal powder compression demolding device which comprises a device base. A pressing cavity is formed in the end part of the device base; a first electric cylinder is fixedly connected to the inner wall of the device base and located below the pressing cavity. The output end of the first electric cylinder is fixedly connected with a pushing block. The output end of a first electric cylinder drives a shovel block to slide in a reciprocating mode, annular shovel blades are arranged at the end and the bottom of the shovel block, residual metal powder on the inner wall of a pressing cavity can be reduced when a finished product is demolded, the situation that the edge of the demolded finished product is loose is reduced, and therefore the quality of the pressed finished product is improved; metal powder in the pressing cavity is pressed and formed, the effect of pressing and forming the metal powder is achieved, the multiple brushes are attached to the inner wall of the pressing cavity for cleaning, the cleaning effect on the inner wall of the pressing cavity is improved, and the influence of the residual metal powder on the quality of finished products is reduced.
Owner:NANJING ORIENTANK PRESS CO LTD

Bright chromium-manganese alloy steel quenching oil and its preparation method

The technical scheme of the present application discloses a bright chromium-manganese alloy steel quenching oil and a preparation method thereof, the bright chromium-manganese alloy steel quenching oil comprises the following components in percentage by mass: base oil 85-93%, rapid cooling agent 2.5-7.5%, antioxidant 0.7-2.8%, dispersant 2.8-5.0%, and brightener 0.1-0.8%. The brightness of the bright chromium-manganese alloy steel quenching oil reaches the first level, and the brightener in the bright chromium-manganese alloy steel quenching oil can effectively prevent non-oil-soluble substances and carbon black and other substances in the quenching oil at high temperature from adhering to the surface of the workpiece, so that the chromium-manganese alloy steel workpiece has a high gloss, thereby eliminating the need for post-processing of the quenched chromium-manganese alloy steel workpiece, and further improving the production efficiency and reducing the production cost.
Owner:JIHUA LAB

Anode tool for micro-arc oxidation

An anode fixture for micro-arc oxidation includes a rotating shaft and a workpiece fixing assembly. The rotating shaft comprises a first straight rod and a second straight rod. The rear end of the first straight rod is rotatably connected to the front end of the second straight rod via a pin. The front end of the first straight rod is connected to the positive terminal of the oxidation power source. The rear section of the second straight rod is an externally threaded section. The workpiece fixing assembly is mounted on the externally threaded section and includes a positioning nut, a ring spring support plate, and a fastening nut. The outer diameter of the ring spring support plate is smaller than the inner diameter of the workpiece fixing hole, while the outer diameters of the positioning nut and the fastening nut are larger than the inner diameter of the workpiece fixing hole. The positioning nut is sleeved on the upper part of the externally threaded section, and the ring spring support plate is sleeved on the externally threaded section and abuts against the positioning nut. The workpiece is sleeved outside the ring spring support plate and secured by tightening the fastening nut. This invention has a reasonable structure, is easy to operate, effectively improves the uniformity of the oxide film on the workpiece surface, protects the anode contact area of ​​the workpiece from ablation, and improves production efficiency.
Owner:CHINA WEAPON SCI ACADEMY NINGBO BRANCH