31results about How to "Small quality error" patented technology

The invention relates to the improvement on the ceramic beehive catalyst carrier, especially providing a ceramic beehive catalyst carrier with high mechanical strength and lower expansion parameter and preparing method. The invention is characterized in that: said beehive catalyst carrier is the alumina micro powder in 12-15%WT whose average particle diameter is less than 2 micron; the sheet kaolin and / or clay micro powder in 43-47% whose average particle diameter is less than 2 micron, the sheet steatite micro powder in 33-37% whose average particle diameter is 5-15 micron, and the fuse quartz in 6-12% whose average particle diameter is less than 2 micron to be mixed, molded and baked to attain the cordierite whose total amount is 92-96%, wherein, the Al203, MgO and SiO2 are each in 36-37%, 13.0-14.0% and 50-52%. The invention adds surface active agent in the mixture when in preparation. The prepared beehive cordierite total amount with 600 hole / square inch can reach 92-96%, the expansion parameter can reach 0.8X10-6 / Deg. C (800Deg. C to room temperature), and the factor of porosity can reach 39-40%. The invention can reduce the ignition temperature 25-40Deg. C, and reduce the tail gas discharge of nitrogen oxygen compound and carbon monoxide of vehicle 5-10% to meet the demand of Europe III standard.

The invention relates to a method for detecting a flavonoids component in peony petals. The method comprises the following steps: preparing a flavonoids extracting solution; setting a chromatographiccondition, a mass spectrum condition and a detection wavelength of a diode array detector; detecting the flavonoids extracting solution by adopting an ultra performance liquid chromatograph-diode array detector-triple quadrupole flight time tandem mass spectrometry and obtaining a detection result; carrying out structure identification on a flavonoids substance through analyzing the detection result; reckoning the structure of the flavonoids component. The method provided by the invention has the advantages of simple operation steps, rapid detection speed and high accuracy and sensitivity andcan be used for detecting the flavonoids component with the extremely less content; identification species are comprehensive and 67 types of main flavone, flavonol, flavanone and flavanol compounds and 5 types of main anthocyanin compounds are totally identified from the peony petals; the blank of identifying the flavonoids component in the peony petals is filled up and the method has important meanings on in analysis of nutrient components of the peony petals with different varieties.

The invention relates to a pu'er tea cake forming process, in particular relates to a flow line and an automatic weighting device which are important parts for pu'er tea cake forming and processing and belongs to the field of foods. Tea leaves are fed by a feed device and are weighted, automatic weighting of bottom scattering tea, core tea, edge tea, surface tea and top scattering tea is finished, after the feeding is finished, an inner marker is placed, and automatic steaming, forming and compression molding are carried out, so that the pu'er tea can be molded by compression. The pu'er tea cake forming technology can be used for realizing local mechanization of the processing process, reducing the error caused by manual weighting, improving the integral quality of tea cakes, reducing theamount of labor used, reducing the labor intensity of workers, and providing a foundation for further mechanical improvement of tea cake formation processing.

The invention discloses a medium-large-density battery piece wrapping machine. The machine comprises a main frame mechanism, partition paper uncoiling mechanisms, a conveying mechanism, a feeding mechanism, a transmission mechanism, a paper feeding piece wrapping mechanism, a piece stacking mechanism, a collecting mechanism, an output mechanism and a negative pressure mechanism. The conveying mechanism is composed of a first conveying mechanism body and a second conveying mechanism body. The partition paper uncoiling mechanisms are installed on the left side of the main frame mechanism. Each partition paper uncoiling mechanism is connected with a motor. The first conveying mechanism body, the second conveying mechanism body, the piece stacking mechanism and the collecting mechanism are sequentially installed in the main frame mechanism from left to right. The paper feeding piece wrapping mechanism is located over the joint of the first conveying mechanism body and the second conveying mechanism body. The output mechanism is installed at the right end of the main frame mechanism. The medium-large-density battery piece wrapping machine is reasonable in structure. The medium-large-density battery piece wrapping machine is wholly arranged linearly, so that the space occupying coefficient is high. A mechanical linkage mode is adopted, so that piece wrapping efficiency is high. The piece wrapping efficiency and quality of batteries are improved while labor cost is reduced.

The invention provides a uniform adjustable powder feeding device which comprises an speed-adjusting motor, an speed-adjusting motor transmission shaft, a feed tank cover, a feed tank, a feeding shaft and an air inlet pipe, wherein the feed tank cover is arranged on the feed tank, a vacuum sealing washer is arranged between the feed tank and the feed tank cover, a vacuum dynamic seal device is arranged in the middle of the feed tank cover, a loading port is formed at an edge of the feed tank cover, the upper end of a rotating shaft of the vacuum dynamic seal device is connected with the speed-adjusting motor transmission shaft, the lower end of the rotating shaft of the vacuum dynamic seal device is connected with the upper end of the feeding shaft, the feeding shaft is perpendicularly mounted, a spiral shaft is arranged at the lower part of the feeding shaft, the spiral shaft is inserted into a feed pipe at the bottom of the feed tank, the feeing shaft is a hollow shaft, a gap is formed at the junction of the upper end of the feeding shaft and the rotating shaft of the vacuum dynamic seal device, the lower part of the feed pipe is communicated with an air / powder discharge pipe, the air inlet pipe is connected with the middle part of the feed pipe and the middle part of the air / powder discharge pipe, and a valve is arranged on the air inlet pipe. The uniform adjustable powder feeding device solves the problem that the spiral shaft is choked by using the cooperative action of gravity force and spiral force, and improves the powder feeding accuracy in case of no pressure fluctuation by adopting the hollow spiral shaft.

The invention discloses a tuned mass damper with variable stiffness, variable mass and variable damping and a design method thereof. The damper comprises a mass system, a support and a damping system; the mass system comprises a mass block; the damper is characterized in that a plurality of guide rods are arranged on the support; the mass system can slide along the guide rods; the damping system is arranged on the support; the guide rods are sleeved with first springs; one end of each first spring is connected with the mass system; the other end of each first spring is connected with the support; a plurality of second springs are further arranged on the support; the second springs are connected with sliding blocks; locking structures are connected between the mass system and the sliding blocks; and the sliding blocks and the mass system can be connected or disconnected by locking or disconnecting the locking structures. By the adoption of the tuned mass damper with the variable stiffness, the variable mass and the variable damping, multi-order vibration of a structure can be controlled, the damper can adapt to natural vibration frequency in a wide range, and corresponding optimal damping can be set according to vibration of a main structure in different states, so that the adaptability and the restraining effect are greatly improved, and the device has wide application prospects.

The invention belongs to the technical field of detection methods, and particularly relates to a method for rapidly testing the moisture content of sized and dried carbon fibers. According to the method, the final moisture content of the fiber is comprehensively judged by adopting solvent digestion in combination with a trace moisture testing method and a thermal weight loss step. The method is high in testing speed, and overcomes the difficulties of long testing time and high testing environment requirements of a drying method for testing the moisture content of the fiber; by adopting the method, the total mass of the original fiber sample only needs to be tested once, and the subsequent mass test is not involved, so that the mass error caused by the fact that the fiber is light, crisp and easy to drift out of an experimental container in the experimental process can be avoided.

The present invention provides a thermal analysis device with extremely fast temperature rise-variable atmosphere-real-time weight and its application, including a furnace reaction device, a fixed protection device, a sample weighing device and an electric control device; wherein the sample weighing device uses pressure The sensor replaces the traditional thermobalance, combined with the moving furnace body, to realize the measurement of the macroscopic sample amount (g-kg level), and avoids the quality error caused by the vibration of the moving measurement object, and at the same time uses corrosion-resistant materials to break through the thermobalance. Limitations caused by corrosion; can realize any combination of various combustion atmospheres and extremely rapid temperature rise, greatly improving the scope of application; can accurately measure the amount of thermal cracking of samples, providing an effective way for the study of thermal cracking behavior in the later stage.

A method of self-calibrating a mass spectrometer or mass spectral data is disclosed. At least some first observed mass to charge ratios are matched with or against a comprehensive reference set of possible or predicted elemental compositions having known precise mass to charge ratios. One or more calibration parameters of a calibration routine are then adjusted so as to optimize the match between one or more of the first observed mass to charge ratios and the corresponding known precise mass to charge ratios of one or more possible or predicted elemental compositions contained within the reference set.

The invention relates to a rotary medicine packaging machine, which sequentially includes a bottle feeding mechanism, a continuous infusion mechanism, a transition mechanism, a stopper mechanism and a bottle discharging mechanism along the bottle conveying direction, the continuous infusion mechanism is fixed on the frame, and the continuous infusion mechanism One end of the mechanism is connected to the bottle feeding mechanism, and the other end is connected to the transition mechanism. The continuous infusion mechanism includes a main shaft, on which there are distributing parts, infusion parts and lifting parts, and an infusion pump is arranged on the top of the frame. The distribution part and the infusion part are connected through the infusion pipeline. There is a pump body control valve at the bottom of the frame. The pump body control valve is electrically connected to the infusion pump. The lower end of the infusion part conflicts with the lifting part. The frame is provided with a control cam, and the infusion part is provided with an infusion cut-off mechanism. The invention can realize the effect of continuous and high-efficiency packaging of bottle bodies.

The invention relates to a method for detecting a flavonoids component in peony petals. The method comprises the following steps: preparing a flavonoids extracting solution; setting a chromatographiccondition, a mass spectrum condition and a detection wavelength of a diode array detector; detecting the flavonoids extracting solution by adopting an ultra performance liquid chromatograph-diode array detector-triple quadrupole flight time tandem mass spectrometry and obtaining a detection result; carrying out structure identification on a flavonoids substance through analyzing the detection result; reckoning the structure of the flavonoids component. The method provided by the invention has the advantages of simple operation steps, rapid detection speed and high accuracy and sensitivity andcan be used for detecting the flavonoids component with the extremely less content; identification species are comprehensive and 67 types of main flavone, flavonol, flavanone and flavanol compounds and 5 types of main anthocyanin compounds are totally identified from the peony petals; the blank of identifying the flavonoids component in the peony petals is filled up and the method has important meanings on in analysis of nutrient components of the peony petals with different varieties.

The invention relates to a method for detecting the flavonoid components in peony leaves. The method comprises the following steps of preparing a flavonoid extracting solution; setting chromatographicconditions, mass spectrum conditions and the detection wavelength of a diode array detector; adopting the super-efficient liquid chromatogram-diode array detector-triple quadrupole rod flight time tandem mass spectrum linkage technology for detecting the flavonoid extracting solution, and obtaining a detecting result; performing structure identification on flavonoid substances by analyzing the detecting result, and speculating the structure of the flavonoid compound. The method is simplified in operation steps, rapid in detection and high in accuracy and sensitivity, the micro content of theflavonoid components can be detected, the identification variety is comprehensive, 45 main flavone, flavonol, flavanone and flavanol compounds are identified in the peony leaves, a gap for flavonoid component identification in the peony leaves is filled up, and the method is of great significance in analysis of different varieties of peony leaf nutrient contents.

The invention discloses a substation power grid comprehensive grounding lead-out wire construction method. The method comprises the steps of firstly, manufacturing a sleeve and a water stop ring, welding the water stop ring to the outer ring of the sleeve, brushing two layers of zinc-rich paint at a weld joint, and brushing a layer of antirust paint; penetrating a grounding lead-out wire into thesleeve, arranging an insulating fixing ring between the grounding lead-out wire and the sleeve, respectively pouring epoxy resin fillers from two ends of the sleeve; after the epoxy resin fillers arecompletely solidified, arranging the bottom end of the sleeve on a civil engineering cushion layer; welding the grounding lead-out wire at the bottom end of the sleeve to a grounding grid; locating the water stop ring at the position of a civil engineering bottom plate; and enabling the top end of the sleeve extends out of a concrete backfill layer located above the civil engineering bottom plateto complete construction of the grounding lead-out wire. According to the method, the defects of traditional grounding lead-out wire construction are overcome; the construction period is effectively shortened; quality errors possibly occurring in construction operation are reduced; and the reliability of grounding lead-out wire arrangement and a traction substation grounding system is ensured.

The invention discloses a medium and large-density battery wrapping machine, which comprises a main frame mechanism, a partition paper unwinding mechanism, a conveying mechanism, a material feeding mechanism, a transmission mechanism, a paper feeding and wrapping mechanism, a stacking mechanism, a material receiving mechanism, an output mechanism and negative pressure mechanism, the conveying mechanism is composed of a first conveying mechanism and a second conveying mechanism, a number of separator paper unwinding mechanisms are installed on the left side of the main frame mechanism, and each separator paper unwinding mechanism is connected with a motor Connected, the inside of the main frame mechanism is sequentially installed with a first conveying mechanism, a second conveying mechanism, a stacking mechanism and a receiving mechanism from left to right, and the paper feeding and wrapping mechanism is located between the first conveying mechanism and the second conveying mechanism. Directly above the mechanism junction, the output mechanism is installed on the right end of the main frame mechanism. The invention discloses a medium-to-large-density battery wrapping machine, which has a reasonable structure, an overall linear layout, a high space occupation factor, adopts a mechanical linkage method, has high wrapping accuracy, reduces labor costs, and improves battery wrapping efficiency and quality.

The invention discloses a tuned mass damper with variable stiffness, mass and variable damping and a design method thereof. The damper includes a mass system, a support and a damping system, and the mass system includes a mass block. It is characterized in that the support There are a number of guide rods on it, the mass system can slide along the guide rods, the first spring is sleeved on the guide rods, one end of the first spring is connected to the mass system, and the other end is connected to the support ; The support is also provided with several second springs, the second springs are connected with a slider, and a locking structure is connected between the mass system and the slider, by locking or disconnecting the locking structure The slider can be connected or disconnected from the mass system. Using this device can not only control the multi-order vibration of the structure, but also adapt to a wide range of natural vibration frequencies, and can also set the corresponding optimal damping according to the vibration of the main structure in different states, greatly improving the adaptability and suppression effect, and has a wide range of applications. Application prospects.

The invention provides a method for manufacturing a remolding soil test specimen in the technical field of geotechnical tests. A darby tray and a specimen making device are used. The darby tray is a rectangular tray, and an adjustable darby is attached to the upper part of the rectangular tray. The specimen making device consists of a concave press rod, a pad block and a transparent sleeve with scales. By using a one-step feeding mode, the characteristic of uniform loading of the existing servo hydraulic equipment in a laboratory is used; the problems of nonuniform and instable specimen making pressure, easy layering of the soil specimen and upper and lower density difference are solved; the visual scale characteristic of the specimen making device is used; the precise control on the test specimen volume is achieved; and further, the dry density is precisely controlled on the premise of precisely controlling the moisture content. The method is applicable to the preparation of cylindrical remolding soil test specimens, and has the characteristics that the system errors are small; the structure is simple; the laboratory equipment is integrally utilized; the multi-time repeated utilization can be realized, and the like.

The invention discloses a filling machine for heparin sodium cream. The machine comprises a conveying structure and a filling device. Through an air storage tank, an exhaust opening, a pipeline, a lifting rod and a nozzle, blowing dust removal is carried out on a medicine tube placed on a filling box inner cavity positioning structure, through a dust suction cover, a pipeline and a dust suction fan, sucking is carried out, the heparin sodium cream is prevented from being polluted in the filling process, an ultraviolet sterilization lamp arranged on the top of a filling box inner cavity carriesout sterilizing and disinfecting on the heparin sodium cream during filling, the quality of the heparin sodium cream is improved, the size of the shape of the lower end of the piston is matched withthe size of the shape of the lower end of the filling pipe head inner cavity, under the action of a driving air cylinder, cream in the filling pipe head is extruded, the pollution caused by deterioration of cream remaining in the filling head can be avoided, the quality of the heparin sodium cream is further improved, waste is avoided, resources are saved, production cost is reduced, due to a sliding structure, different heights and sizes of medicine tubes can be filled, and device practicability is improved.