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34results about How to "Long manufacturing cycle" patented technology

Graphene nanowall flexible electrocardio-electrode and preparation method thereof

The invention discloses a graphene nanowall flexible electrocardio-electrode and a preparation method thereof. The flexible electrocardio-electrode comprises a flexible substrate layer and a graphene nanowall layer, wherein a layer of conductive silver adhesives coats the side edge of the graphene nanowall layer and connected with a metal conductor. The graphene nanowall flexible electrocardio-electrode is high in flexibility, and can be closely clung to a body surface; the acquired potential difference is accurate; in addition, the electrode is small in impedance, outstanding in conductive performance, difficult to be polarized, resistant to interference and resistant to noise; in addition, the service life of the electrode can be greatly prolonged due to the corrosion resistance of graphene. The graphene nanowall flexible electrocardio-electrode is simple and convenient to operate, short in manufacturing cycle and easily produced by mass.
Owner:CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI

Dynamic micro-positioner and aligner

A self-contained means to move a media or component, such as fiber (12) or other miniature object, such as a lens, into a desired position is given. The fiber (12) or component is moved in various dimensions to achieve the desired location and is locked into position after the move. An input electrical signal, such as a voltage or current controls movement. A thermal actuator comprises the micro-positioner (80) using semiconductor technology in one embodiment. In another embodiment, of the present invention, a thermal or electrostatic actuator uses mechanical gears to move the fiber. Another embodiment of the present invention is implemented using mechanical technology such as microelectromechanical system (MEMS) technology. Another embodiment of the present invention, utilizes piezoelectric materials to facilitate fiber movement.
Owner:NANOLIGN

Demolding mechanism of a plastic bottle cap mold and a method therefor

InactiveUS20150183148A1Long manufacturing cycleLow manufacturing efficiencyFood shapingDomestic articlesEngineeringBottle cap
A demolding mechanism of a plastic bottle cap mold provided on a movable portion of the plastic bottle cap mold; the demolding mechanism comprises a supporting and place-giving device; the supporting and place-giving device is disposed corresponding to cores in the movable portion which are used for demolding; each of the cores is fixed at a molding position during injection of a bottle cap and retreats during demolding of the plastic bottle cap mold in order to free the molded bottle cap. A demolding method achieved by the above demolding mechanism is also provided.
Owner:LAU KWONG FAT

Manufacturing equipment and manufacturing method for electrode of power type lithium ion battery

InactiveCN102694149ANot easy to fall offSuppress and correct deformationCell electrodesSolventCurrent collector
The invention discloses manufacturing equipment and a manufacturing method for an electrode of a power type lithium ion battery. The manufacturing equipment comprises a vibration disk, a foam metal die, an electrode solid-state filler powder box and foam metal, wherein the foam metal die is arranged on the vibrating disk; the electrode solid-state filler powder box is arranged above the foam metal die; and the foam metal is arranged in the foam metal die. The foam metal with the characteristics of high electric conductivity, high thermal conductivity, large specific surface area, uniform and small through holes and the like is adopted as a current collector, and a skeleton structure of the foam metal is inserted into powdery active substances for pressurization to obtain an electrode plate with strong binding force, so that the active substances difficultly fall, the electric conductivity of the active substances of the electrode is effectively improved, internal resistance is lowered, heat produced by the battery is reduced, radiation is facilitated, and the service life of the battery is prolonged; and in addition, a solid-state active substance is used for directly filling the foam metal without an aqueous solution or a non-aqueous solvent, so that the obtained electrode plate is not required to be baked to remove the solvent, the manufacture period of the battery is shortened, energy consumption is reduced, and production cost is saved.
Owner:广州贝特缪斯能源科技有限公司

Three-dimensional model data processing method for steel structure assembling members based on BIM technology

The invention discloses a three-dimensional model data processing method for steel structure assembling members based on a BIM technology. The method comprises the steps that A, a virtual three-dimensional model of all pre-assembled members of a steel structure is constructed according to a design drawing of all the pre-assembled members of the steel structure and design parameter members; B, the virtual three-dimensional model and corresponding steel member entity structure information are subjected to comparison and review; and C, three-dimensional space operation is performed on the reviewed virtual three-dimensional model of all the pre-assembled members of the steel structure through the BIM technology to realize pre-assembling. According to the method, the virtual three-dimensional model of all the pre-assembled components of the steel structure is constructed to perform simulated steel structure assembling operation, pre-assembling investment cost can be reduced beneficially, the manufacturing cycle can be shortened, simulated assembling precision is high, and actual assembling quality in a later period is ensured beneficially.
Owner:四川云图瑞科技有限公司

Catalyst for ethylene polymerization or copolymerization and its prepn and application

ActiveCN1706872AHigh polymerization activityStreamline processEpoxyElectron donor
The present invention provides catalyst component for ethylene polymerization or copolymerization and its preparation process. The catalyst is homogeneous solution prepared through dissolving magnesium halide in organic epoxy compound or organic phosphorus compound and adding electron donor compound. The present invention has separation assistant of non-toxic inorganic carbon containing solid to result in high catalytic performance, and the separation assistant is not soluble and swollen, needs no dissolving step, and may be used as the nucleartor for catalyst microcrystal growth to control the shape of catalyst. The present invention is superior to available technology, which has long temperature raising time, long catalyst preparing period, hard production operation and other demerits.
Owner:CHINA PETROLEUM & CHEM CORP +1

Method for dispersing nano combustion catalyst in composite propellant

The invention discloses a method for dispersing a nano combustion catalyst in a composite propellant, solving the problems of difficulty in dispersion, multiple steps and complicated process in the prior art. The dispersing method comprises the following steps: ultrasonically dispersing the nano combustion catalyst by utilizing a surfactant and a dispersion medium; adding the uniformly pre-mixed composite propellant into slurry of other components, and mixing, heating in low vacuum degree to remove the solvent in the dispersion medium, and dispersing the nano combustion catalyst in the composite propellant. According to the method disclosed by the invention, and the conventional ultrasonic dispersion and mixed dispersion by a kneading machine are adopted, so that uniform and stable dispersion between the nano combustion catalyst and the composite propellant is realized.
Owner:XIAN MODERN CHEM RES INST

Method for preparing cathode material lithium nickel cobalt aluminate for lithium ion battery by spray drying

The invention relates to a method for preparing a cathode material lithium nickel cobalt aluminate for lithium ion battery by spray drying. A chemical general formula of the material is LiNi1-x-yCoxAlyO2, wherein x is more than 0.1 and less than 0.3, y is more than 0.01 and less than 0.15 and 1-x-y is more than 0 and less than 1. The preparation method comprises the following steps: mixing and sanding an insoluble nickel compound, an insoluble cobalt compound, an insoluble aluminum compound and a lithium compound for 2 to 8h, performing spray drying to obtain a lithium nickel cobalt aluminate precursor, and performing roasting to prepare the cathode material lithium nickel cobalt aluminate under an oxygen airflow by adopting a two-stage method. According to the method, spray drying is performed to rapidly evaporate water to obtain the uniform and dense spherical lithium nickel cobalt aluminate precursor after nickel, cobalt and aluminum are mixed on a nanometer scale by adopting an efficient sander, and the cathode material lithium nickel cobalt aluminate with stable electrochemical performance is finally obtained by stagewise roasting. The method is easy to operate and short in preparation cycle, and the product is high in quality and consistency, and can be continuously and industrially produced.
Owner:HUNAN SOUNDDON NEW ENERGY

Low-salt tank type fermentation preparation method of Pixian horsebean chili paste

The invention discloses a low-salt tank type fermentation preparation method of Pixian horsebean chili paste. The method comprises the following steps: adding horsebean paste petals prepared by tank type fermentation and fermented dried chili embryos into a mixing tank according to a mass ratio of 4 to 6, premixing, then adding the material into a chili embryo fermentation tank, uniformly mixing, enabling the concentration of salt in the material to be 9.0-10.5% and enabling the content of water in the material to be 60-65%, then controlling the temperature to be 15-20 DEG C, introducing sterile air for fermenting, adding saccharomycete powder after fermenting for 3-5 days, uniformly mixing, obtaining Pixian horsebean chili paste after fermenting for 75-90 days, then carrying out vacuum dewatering treatment of the Pixian horsebean chili paste to obtain Pixian horsebean chili paste products with water content being less than or equal to 50.00% and salt content being 12.00-15.00%. Through the low-salt tank type fermentation preparation method of Pixian horsebean chili paste, the requirements on the quality can be met; the fragrance and the delicate flavor of the products can be further improved; the problem of pollution in the preparation process is avoided; meanwhile, the special flavor of the conventional Pixian horsebean chili paste is also retained; the method is small in occupation area and is suitable for large-scale industrial production; and the market demand of the Pixian horsebean chili paste is met.
Owner:SICHUAN GAOFUJI FOOD

Dark Pixian County thick broad-bean sauce fermentation preparation method

The invention discloses a dark Pixian County thick broad-bean sauce fermentation preparation method, which comprises: placing thick broad bean sauce prepared through tank type fermentation and fermented dried hot pepper billet into a material mixing tank according to a mass ratio of 4:6, pre-mixing, feeding the obtained pre-mixing material into a hot pepper billet fermentation tank, uniformly mixing to achieve the salt content of the material of 9.0-10.5% and the moisture content of 60-65%, controlling the temperature at 15-20 DEG C, introducing sterile air, fermenting, adding yeast powder at the 3th-5th day after the fermenting, uniformly mixing, increasing the fermentation temperature to 35-50 DEG C at the 30th day before completing the fermentation, adding glucose, and continuously fermenting to complete the process so as to obtain the dark Pixian County thick broad-bean sauce, wherein the total fermentation period is 75-90 days. According to the present invention, the requirement on the quality can be met while the aroma and the delicious taste of the product can be further improved, the pollution problem during the production process can be avoided, the coloring is unit, the types of the product is enriched, the unique flavor of the traditional Pixian County thick broad-bean sauce is retained, the occupation area is small, the method is suitable for large-scale industrial production, and different uses and different market requirements of the Pixian County thick broad-bean sauce can be met.
Owner:SICHUAN GAOFUJI FOOD

Tank type fermentation process for preparing low-salt chili oil thick broad-bean sauce by premixing and feeding

The invention provides a tank type fermentation process for preparing low-salt chili oil thick broad-bean sauce by premixing and feeding. The tank type fermentation process comprises the following steps: putting a fermented dried chili base material and broad-bean sauce, which are obtained by tank type fermentation, into a premixing groove according to the mass ratio of (7 to 7.5) to (2.5 to 3), and feeding a mixture into a chili base material fermentation tank by adopting an underflow pump; uniformly mixing to enable the salt concentration of the material to be 10 percent to 12 percent and the moisture content to be 70 percent to 75 percent; adding saccharomycete bacterial powder into the tank; keeping constant temperature of 25 DEG C to 40 DEG C and introducing sterile air and fermenting for 4 to 5 days; then adding cooled cooked rapeseed oil into the material subjected to fermentation and dehydration treatment; heating and sterilizing to obtain a chili oil thick broad-bean sauce product. According to the method provided by the invention, the flavor and umami of a product are further improved when the requirements on quality are met; a pollution problem in a production process is avoided; meanwhile, a unique flavor of traditional Pixian thick broad-bean sauce is also kept; an occupied land is small, so that the tank type fermentation process is suitable for large-scale industrial production and the market demand of the Pixian thick broad-bean sauce is satisfied.
Owner:SICHUAN GAOFUJI BIOLOGICAL TECH

Radiator fan wind scooper

The invention discloses a radiator fan wind scooper, and relates to the technical field of engineering machinery manufacturing. For the radiator fan wind scooper, a diversion block is arranged on each of at least two of four inner corner parts of the original wind scooper, so the straight ribs of the inner corner parts of the original radiator fan wind scooper is turned into rounding-off angles; and the hot air generated by the radiator is smoothly discharged out of the radiator without generation of turbulent flow blocking the flow while passing through the smooth curves of the diversion blocks on the inner corner parts of the radiator fan wind scooper, so the cooling efficiency of the radiator is improved. The radiator fan wind scooper disclosed by the invention has characteristics of being low in manufacturing cost and strong in university.
Owner:LIUZHOU LIUGONG EXCAVATORS +2

Preparation method of carbinoxamine maleate sustained-release suspension

The invention relates to a preparation method of a carbinoxamine maleate sustained-release suspension, and belongs to the technical field of drug preparation; two techniques of ion exchange and reaction kettle emulsion solvent volatilization drying coating are creatively simultaneously used for controlling drug release, and the carbinoxamine maleate sustained-release suspension which can be sustained-released is obtained, so that the carbinoxamine maleate in-vivo blood drug concentration is more smooth and steady, and the drug effect is more lasting; compared with conventional suspension preparation technologies, the technology greatly reduces the production cost while ensuring the production capacity, moreover, the whole operation process can be operated in a reaction kettle, the utilization rate of equipment is effectively improved, and at the same time, the reaction kettle parameters are convenient to control and are not influenced by external conditions basically.
Owner:JIANGSU UNIV

Cup system with removable insulated liner

InactiveUS20120223076A1Surface cleaningTight process parameterCapsLarge containersEngineeringMechanical engineering
A cup system including a lid, a liner, an outer cup, and an optional valve. The liner includes first and second mating surfaces. The liner first mating surface is selectively attachable to a corresponding mating surface associated with the outer cup and the liner second mating surface is selectively attachable to a corresponding mating surface associated with the lid. The mating surface of the lid is also selectively attachable to the mating surface of the outer cup such that present cup can be utilized as either an insulated or a non-insulated cup. The optional valve assembles to the lid by pressing the boss of the valve into a valve receiver associated with the lid.
Owner:NUK USA

Method for producing crystal bars

The invention discloses a method for producing crystal bars. The method is characterized in that before online cutting, crystal bars which are treated by a bar picking technology are placed in a high temperature annealing furnace for carrying out annealing; the annealing process mainly comprises the following step: a heating process, a constant temperature process, and a cooling process. The annealing process method of sapphire crystal bars is provided, unified annealing processing is carried out for crystal bars produced by different crystal growths and bar picking technology, residual stress in the crystal bars is eliminated, consistency of the quality of sapphire crystal bars is improved, and posterior wafer processing, and epitaxial yield rate and uniformity are improved.
Owner:FUJIAN JING AN OPTOELECTRONICS CO LTD

Low-salt-content tank fermentation method of Pixian thick broad-bean chili sauce by using premixed materials

InactiveCN107252054AGood controllability of fermentation conditionsSmall footprintFood scienceWater contentChemistry
The invention discloses a low-salt-content tank fermentation method of Pixian thick broad-bean chili sauce by using premixed materials. The low-salt-content tank fermentation method of the Pixian thick broad-bean chili sauce by using the premixed materials comprises the following steps of putting broad-bean-half paste prepared by carrying out tank fermentation and fermented dried chili pepper bases into a material mixing tank at a mass ratio of 4 to 6, and carrying out premixing; introducing the premixed materials into a chili pepper base fermentation tank by adopting a slurry pump, and carrying out uniform mixing; making salinity of the mixture at 10-12%, and water content of the mixture at 60-65%; controlling the temperature at 15-20 DEG C, and introducing sterile air so as to carry out fermentation; adding yeast powder after 3-5 days of fermentation, and carrying out uniform mixing; carrying out fermentation for 75-90 days so as to obtain the Pixian thick broad-bean chili sauce; and then, performing vacuum dehydration treatment on the Pixian thick broad-bean chili sauce so as to obtain a Pixian thick broad-bean chili sauce product of which the water content is 50.00% or lower, and the salt content is 12.00-15.00%. The low-salt-content tank fermentation method of the Pixian thick broad-bean chili sauce by using the premixed materials meets quality requirements, and further improves aroma and delicious taste of the Pixian thick broad-bean chili sauce; moreover, pollution problems during preparation processes of the Pixian thick broad-bean chili sauce are also avoided. The method also retains unique flavor of traditional Pixian thick broad-bean chili sauce, and is small in floor area and suitable for large-scale industrial production; and thus, market demands for the Pixian thick broad-bean chili sauce is satisfied.
Owner:SICHUAN GAOFUJI FOOD

Special memory alloy for tunnel smoke exhaust fire damper and preparation method thereof

The invention belongs to the technical field of memory alloy processing, and discloses a special memory alloy for a tunnel smoke exhaust fire damper and a preparation method thereof. The special memory alloy is prepared from the following components in percentages by weight: 14.5% of nickel, 35.2% of palladium, 49.6% of titanium and the balance of copper. The preparation process of the special memory alloy comprises material mixing, compaction and SHS synthesis. The preparation cycle of the method disclosed by the invention is just several minutes to dozens of minutes, the phase-transition temperature of the prepared alloy is 230 to 250 DEG C, the completed restorability strain can reach about 4%, and the method is applicable to tunnel fire hazard and fire control fields.
Owner:NANJING UNIV OF TECH

A method of making crystal rods

The invention discloses a method for making crystal ingots, which is characterized in that before online cutting, the crystal ingots that have completed the rod removal process are placed in a high-temperature annealing furnace for annealing, and the annealing process mainly includes: heating process, constant temperature process, Cooling process, an annealing process method for sapphire crystal rods provided by the present invention, through uniform annealing treatment of crystal rods produced under different crystal growth and rod removal processes, the internal residual stress of the crystal rods is eliminated, and the material of the sapphire crystal rods is improved. Consistency, improve the yield and uniformity of back-end wafer processing and epitaxy.
Owner:FUJIAN JING AN OPTOELECTRONICS CO LTD

Solid wood original ecological weathering preparation method

InactiveCN111591082AGood weathering effectReduced weathering effectNatural patternsWood treatment detailsSolid woodSand blasting
The invention discloses a solid wood original ecological weathering preparation method. The method comprises the steps that firstly, a solid wood raw material and a stainless steel sand blasting steelshot are jointly placed into a shot blasting machine to machine the solid wood raw material so as to obtain a solid wood semi-finished product with exposed solid wood annual ring texture pattern andno water; and then, after the surface of the solid wood semi-finished product is polished, the surface of the solid wood semi-finished product is coated with a layer of environment-friendly wax oil for solid wood surface treatment, after the environment-friendly wax oil is solidified, the solid wood semi-finished product coated with the environment-friendly wax oil is subjected to surface polishing treatment and then coated with a layer of silicone oil again, and a solid wood product is obtained. According to the solid wood original ecological weathering preparation method, the improved shot blasting machine and the stainless steel sand blasting steel shot are combined for use, so that a soft wood layer in the solid wood can be well digested, a unique pattern of an exposed annual ring of the solid wood after original ecological weathering is obtained, and a solid wood product with an extremely good weathering effect is obtained. In addition, the solid wood semi-finished product is subjected to surface treatment by adopting the environment-friendly wax oil and the silicone oil, so that residues of toxic substances such as formaldehyde in the solid wood product are avoided.
Owner:何天富

A self-assembled flower spherical lithium-ion battery positive electrode material v 2 o 5 preparation method

The invention relates to a preparation method of a self-assembled ball-flower type cathode material for a lithium ion battery. The preparation method comprises the following steps: dissolving ammonium metavanadate in ethylene glycol; then adding deionized water and uniformly stirring to obtain a NH4VO3 solution with the concentration of NH4<+> of 0.10-0.30mol / L; after adjusting the pH value and heating at 60-90 DEG C or carrying out ultrasonic treatment at 1000-1500W to obtain a suspension; and then after centrifugal separation, heating for 1-3 hours. The prepared material V2O5 is microcrystalline and is uniform in chemical composition, relatively high in purity and uniform in shape. Moreover, the prepared V2O5 is a loose structure which is formed by self-assembling nanorods, wherein the diameter of the nanorods is about 50nm and the length of the nanorods is about 1 micron. The cathode material has a relatively large specific surface area, so that not only can the contact area with an electrolyte be effectively increased, but also the diffusing path of lithium ions can be shortened due to the structures of the short nanorods, thereby promoting transmission of the lithium ions and improving the electrochemical performance of the material.
Owner:SHAANXI UNIV OF SCI & TECH

Manufacturing equipment and manufacturing method for electrode of power type lithium ion battery

The invention discloses manufacturing equipment and a manufacturing method for an electrode of a power type lithium ion battery. The manufacturing equipment comprises a vibration disk, a foam metal die, an electrode solid-state filler powder box and foam metal, wherein the foam metal die is arranged on the vibrating disk; the electrode solid-state filler powder box is arranged above the foam metal die; and the foam metal is arranged in the foam metal die. The foam metal with the characteristics of high electric conductivity, high thermal conductivity, large specific surface area, uniform and small through holes and the like is adopted as a current collector, and a skeleton structure of the foam metal is inserted into powdery active substances for pressurization to obtain an electrode plate with strong binding force, so that the active substances difficultly fall, the electric conductivity of the active substances of the electrode is effectively improved, internal resistance is lowered, heat produced by the battery is reduced, radiation is facilitated, and the service life of the battery is prolonged; and in addition, a solid-state active substance is used for directly filling the foam metal without an aqueous solution or a non-aqueous solvent, so that the obtained electrode plate is not required to be baked to remove the solvent, the manufacture period of the battery is shortened, energy consumption is reduced, and production cost is saved.
Owner:广州贝特缪斯能源科技有限公司

Single-cutting-edge disk slitting blade

The invention relates to the tool manufacturing field, in particular to a single-cutting-edge disk slitting blade. The single-cutting-edge disk slitting blade comprises a disk-shaped blade body made from a tungsten steel alloy material; a round hole concentric with the blade body is arranged on the middle portion of the blade body; a square notch is formed in the edge position of the round hole; the two sides of the edge of the blade body are provided with knife edge parts; the diameter of the blade body is 130 mm; the diameter of the round hole is 88 mm; the thickness of the blade body ranges from 0.995 mm to 1.005 mm; an included angle a of the knife edge parts is 30 degrees; and the density of the tungsten steel alloy material used for manufacturing the blade body is 14.6 g / cm<3>, hardness is HRC74.5-75, the bending strength is 2900-3200 N / MM<2>, cobalt magnetization is 11.7%, and the particle diameter is 0.6-0.8 microns.
Owner:马鞍山市欧林机械设备有限公司

Mask manufacturing method based on fused deposition in-situ 3D printing technology

The invention relates to a mask manufacturing method based on a fused deposition in-situ 3D printing technology, in particular to a replaceable filter element mask manufactured based on the fused deposition modeling in-situ 3D printing technology, and the mask comprises a main body general part of the mask and is manufactured on a large scale through an injection mold. The mask further comprises a face fitting customization part, firstly, the face three-dimensional features of a wearer are extracted through reverse engineering, a personalized customization part three-dimensional model is established according to the size of an injection mold part and the face features of the user, fused deposition modeling 3D printing is carried out, and finally the integrated mask is formed. The mask with the replaceable filter element is attached to the face of the user, more comfortable to wear, good in sealing performance, better in protection effect and capable of being recycled. According to the method, mold manufacturing and 3D printing manufacturing are combined, the actual use requirement can be well met, the machining period can be shortened, the cost can be reduced, and the method is suitable for batch production.
Owner:BEIJING UNIV OF TECH

An Optimal Control Method for Compatible Workpiece Family Considering Look-ahead Distance

The invention discloses an optimization control method of compatible work piece family considering visibility distance. The method includes the following steps: 1. obtaining an optimal Q value table through the algorithm of reinforcement learning; 2. at the (k+g)th decision-making moment, based on the observed combination state of a system, checking up the optimal Q value table, obtaining a corresponding visibility distance and a selection processing work piece family action; 3. determining whether the decision-making moment has a work piece, if the decision-making moment has a work piece, waiting for a corresponding work piece to arrive and saving the corresponding work piece to a corresponding pool of buffer, and if the decision-making moment does not have a work piece, based on the selection processing work piece family action, selecting a work piece from the corresponding work piece family, delivering the work piece to a batch machine for performing processing, and waiting until the processing is completed; then imparting k+g+1 to k+g, and returning to step 3. According to the invention, the method herein can take into consideration arrival information of future work piece when conducts optimization control of the compatible work piece family so as to ensure balanced production, increase production efficiency and reduce wastage rate of work pieces.
Owner:HEFEI UNIV OF TECH

Preparation method of improved animal cough and asthma mixture

The invention discloses a preparation method of an improved animal cough and asthma mixture, and relates to the technical field of preparation of cough and asthma mixts.The preparation method of the improved animal cough and asthma mixture comprises the following steps that 1, raw materials are added, ground and sieved; 2, adding the raw materials in proportion, heating and sterilizing; and 3, mixing and stirring the raw materials to extract a liquid medicine. Through cooperation of the motor and the grinding shell, raw materials are conveyed into the stirring kettle through the feeding pipe, the stability of the grinding block is improved, the grinding block extrudes the grinding piece, the grinding piece extrudes and crushes the raw materials, the grinding ball is driven to rotate, the conveyed raw materials are ground and evenly conveyed to the bottom of the stirring kettle along the filtering holes, and the stirring effect is improved. The problems that in the preparation and screening process of an existing cough and asthma mixture, large-particle raw materials can easily block filter holes, and even the drug property of the medicine is reduced are solved, and the effects of facilitating grinding and screening and improving the drug property of the medicine are achieved.
Owner:山东德聚仁合生物工程有限公司

Catalyst for ethylene polymerization or copolymerization and its preparation and application

ActiveCN1282673CHigh polymerization activityStreamline processEpoxyElectron donor
The invention provides a catalyst component for ethylene polymerization or copolymerization and a preparation method thereof. Wherein the catalyst is formed by dissolving magnesium halide in organic epoxy compound, organic phosphorus compound and adding electron donor compound to form a homogeneous solution. The present invention uses a non-toxic inorganic carbon-containing solid precipitation aid to make the catalyst suitable for ethylene polymerization or co-precipitation. Polymerization has comparable or better catalytic performance than the above-mentioned catalytic system. Since it is neither dissolved nor swelled, the dissolution reaction step of the precipitation aid is omitted. At the same time, this type of solid substance can also be used as a catalyst for microcrystal growth in the system. Therefore, the particle shape of the final catalyst can also be adjusted by selecting and controlling the particles of this type of solid material, which increases the means of regulating the particle shape of the catalyst and overcomes the long heating time and long catalyst preparation cycle of the existing technology , production operations are more difficult and other disadvantages, and to a certain extent reduce pollution.
Owner:CHINA PETROLEUM & CHEM CORP +1

Test device and test method for absorption ratio of absorption chamber of optical pump magnetometer

The invention relates to a testing device and a testing method for an absorption ratio of an absorption chamber of an optical pumping magnetometer. The testing device consists of an optical pumping probe, a photosensitive voltage collecting circuit and vacuumizing-inflation equipment, wherein the absorption chamber is fixed on a station of the vacuumizing-inflation equipment; output voltage of a photosensitive element and the absorption ratio of the absorption chamber are measured in real time; pressure of the absorption chamber is regulated on line directly; and the best optical pumping effect is achieved. The testing device changes the fact that the finished absorption chamber is loaded into an optical pumping magnetometer probe, the absorption ratio of the absorption chamber is judged according to a whole effect of the testing probe; and when the whole effect of the probe is not good, a problem of the absorption chamber cannot be determined. Materials and time are wasted, and a manufacturing period of the magnetometer is prolonged. The testing device saves the materials, increases a qualification rate of the absorption chamber, shortens the manufacturing period of the magnetometer, improves the quality of the absorption chamber of the optical pumping magnetometer, and is simple to operate and low in cost.
Owner:JILIN UNIV
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