55results about How to "Guaranteed chemical properties" patented technology

The invention relates to a magnetic graphene oxide composite nanomaterial and a preparation method thereof. The material is prepared from graphene oxide, magnetic nano particles and a polydopamine shell layer; graphene oxide is connected with the magnetic nano particles wrapped by polydopamine, polydopamine serves as a connecting arm between the magnetic nano particles and graphene oxide, and the magnetic nano particles are immobilized on the surface of graphene oxide. When the material is prepared, the magnetic nano particles with stable citric acid are firstly prepared according to a solvothermal method, and then the surfaces of the magnetic nano particles are wrapped by the polydopamine shell layer in an alkaline buffer solution; finally, hydrogen bonds between polydopamine and graphene oxide and pi-pi interact, and the magnetic graphene oxide composite nanomaterial is prepared. The material has the common properties of graphene oxide and the magnetic nano particles, the hydrophilic performance of the material is improved through introduction of polydopamine, and the method is mild in condition and high in expansibility, and preparation is easy and convenient.

The invention provides a high-accuracy TA18 titanium alloy pipe preparation method comprising the steps of preparing material, melting, putting a titanium alloy ingot into a resistance furnace to heat until temperature reaches up to 850 DEG C to 900 DEG C, forming a titanium alloy sheared billet after preserving heat for one to three hours and mounding and drawing for several times, rolling a titanium alloy pipe blank, rolling roughly, rolling precisely, and annealing. A titanium alloy pipe produced by utilizing the high-accuracy TA18 titanium alloy pipe preparation method is high in finished product rate, low in production cost, good in fineness which can reach h6, reasonable in crystal structure, and pretty high in practical value.

The invention discloses an intelligent sample collecting device which comprises a machine frame. The machine frame is provided with a feed inlet. A rotatable rotating disc mechanism and multiple sample storage barrels used for collecting samples are arranged in a collecting cavity formed by the machine frame. The sample storage barrels are hung on the rotating disc mechanism. Each sample storage barrel is provided with a hinged barrel cover and an induction locking mechanism used for locking the barrel cover. The hinged position of the barrel cover is provided with an elastic part so that the barrel cover can bounce upwards to be opened when not locked. The feed inlet is provided with a liftable weighing mechanism. The weighing mechanism is provided with an induction unlocking assembly matched with the induction locking mechanism. When the rotating disc mechanism drives the sample storage barrels to rotate to the position below the feed inlet, the weighing mechanism raises to lift up the sample storage barrels, so that the induction locking mechanism induces an unlocking signal of the induction unlocking assembly to open the barrel covers for sample connection and weighing operation. The intelligent sample collecting device has the advantages that the structure is simple and compact, the intelligence degree is high, sample collection and transfer safety is high, sample collection quality precision is high, working efficiency is high, and the production cost is low.

The invention provides a process for fabricating high precision titanium and titanium alloy plates, employs the processes of material selection, smelting, forging, plate milling, mechanical grinding, composite electropolishing and the like, and solves the difficult problems of titanium and titanium alloy plates of which the surface can not be a mirror surface in precision and roughness, so that the average roughness of the titanium and titanium alloy plates can reach about 0.03 mu m, an oxide film can be formed on the surface during the polishing process, and the corrosion resistance of the plates can be improved effectively.

The invention discloses an open type metal-air fuel cell system capable of uninterruptedly supplying power, which relates to the field of metal-air fuel cell packs and comprises a sensing subsystem, acontroller, a circulating filtration subsystem, an electrolyte tank and a plurality of open type metal-air fuel cell monomers, wherein the open type metal air fuel cell monomers are sequentially arranged in the electrolyte tank, and the open type metal air fuel cell monomers are connected in parallel; the air electrode of the open type metal air fuel cell monomer is of a groove body structure, and the concave surface of the groove body structure is upward; the sensing subsystem is placed in the electrolyte tank; the electrolyte tank is communicated with the circulating filtration subsystem; and the controller is used for controlling the circulating flow of the circulating filtration subsystem according to the electrolyte temperature information acquired by the sensing subsystem. Accordingto the open type metal-air fuel cell system, a sealing structure is omitted, the metal electrode of the cell can be replaced during uninterrupted power supply, and maintenance of the metal-air fuel cell is greatly simplified.

The invention provides a low-pollution energy conservation slag system used for manufacturing a hollow ingot by remelting electroslag in an ingot drawing way. The low-pollution energy conservation slag system comprises the following components in percentage by weight: 15 to 25% of Al2O3, 30 to 40% of CaO3, 8 to 14% of SiO2, 1 to 3% of MgO, 0 to 3% of Na2O, and the balance of CaF2 and inevitable impurities; and the binary basicity of CaO / SiO is 2.5 to 5.0. According to the slag system, components of the slag system are optimized, therefore, relevant performances of the slag system can be further improved, the requirement of a process for producing the hollow ingot by remelting the electroslag is met, and the stability of chemical components of a steel element in the remelting process, high capability of removing inclusion, low environmental pollution and low electricity consumption can be ensured, and as a result, the energy conservation and emission reduction effects are realized.

The invention discloses a rare-earth noctilucent plastic injection molded part. The rare-earth noctilucent plastic injection molded part comprises 60-90wt% of an injection-moldable plastic, 6-10wt% of a flexibilizer, 3-35wt% of rare-earth noctilucent powder, 0.1-0.5wt% of an anti-ultraviolet agent, 0.1-0.5wt% of an antioxidant, 0.1-2wt% of other assistants, and 0.02-2wt% of a paint. A novel rare-earth noctilucent plastic section bar is a sheet, and comprises the injection molded part and a paint film, and the paint film is obtained through spray-coating the paint on the unidirectional side of the inner concave surface of the injection molded part, and has a uniform thickness. The prepared plastic section bar has a good luminescent characteristic because of the adoption of the environmentally-friendly, safe and nontoxic rare-earth alkaline-earth aluminate type long-acting noctilucent powder long-afterglow luminescent material. The novel rare-earth noctilucent plastic section bar has the characteristics of long continuous luminescence time, high luminescence brightness, stable luminescence and the like. The possessing of the color-adjustable paint film makes the paint film be seen from all the surfaces except the oil paint film spray-coating surface of the novel rare-earth noctilucent plastic section bar. The original specific physical and chemical performances of the injection-moldable plastic are guaranteed.

The invention discloses a formula of cell factor and compound and action to regenerate nerve and diagnose the nerve system, which is fit for insuline, bovine serum albumin, putrescine, hydrocortisone, luteohormone, transferrin, sodium selenite, alkaline cellulose cell growing factor and epiderm growing factor.

The invention discloses a sterile packaging method for small-volume injection. The sterile packaging method includes steps of (1) weighing injection raw and auxiliary materials under a negative-pressure weighing cover according to the technical proportion, sequentially adding the weighed injection raw and auxiliary materials into a dosing pot which is sterilized in advance, adding injection-used water to dilute and uniformly mix; (2) replenishing injection-used water to the total dosing amount according to the technical proportion by the aid of a weighing system of the dosing pot, adjusting the pH (potential of hydrogen) value of a drug liquor, and filtering and sterilizing the drug liquor through a 0.22-micrometer sterilizing level filter of a redundant filter system; and (3) injecting the filtered sterile drug liquor into an integrated plastic bottle blowing and filling and sealing machine through a sterile pipeline system, and obtaining a finished product after completing bottle blowing, filling and sealing under protection of an A-level laminar flow cover. The sterile packaging method has the advantages that terminal sterilization is omitted, original chemical characteristics of the injection are guaranteed, and further plastic ampoules are used for package, so that no craps are generated during use, embolism of blood vessels is avoided as well, and strong guarantee is provided for safety in clinical use.

The invention discloses a hot melt laminating device and hot melt laminating method of a membrane filter material. A high-temperature hot roller, a composite glue roller and a cooling roller are sequentially arranged in the vertical direction from top to bottom; a gap adjusting device is arranged between the high-temperature hot roller and the composite glue roller; and a stripping roller is tightly abutted against the cloth outlet side of the composite glue roller. A polytetrafluoroethylene membrane and a base material are synchronously input between the high-temperature hot roller and the composite glue roller in a hot melt laminating process, and are stripped by the stripping roller and rolled after a hot press forming process. The roller diameters of the high-temperature hot roller and the cooling roller are the same, and the diameters of the high-temperature hot roller and the cooling roller are phi 360-600mm; the roller diameters of the composite glue roller and the stripping roller are the same, the diameters of the composite glue roller and the stripping roller are phi 150-300mm, and a diameter ratio of the composite glue roller and the stripping roller is in a range of 1.8-2.4. The hot melt laminating device is reasonable in structure; the composite glue roller has good cooling effect and long service life; the service life is up to 8-12 months; and the composite glue roller has convenience in replacement and maintenance. The polytetrafluoroethylene membrane filter material produced by the invention ensures the physical properties and the chemical properties of the polytetrafluoroethylene membrane, and has small damage on the polytetrafluoroethylene membrane; the prepared membrane filter material and the used polytetrafluoroethylene membrane have the same pore size; and the filter efficiency of the membrane filter material is improved.

The invention relates to Chinese toon leaf decocting pieces assisting in blood glucose reduction and a preparation method of the decocting pieces, and belongs to the field of a medical health-care product. The decocting pieces comprise the following components, by mass, 6-9% of a toon leaf extract, 12-14% of maltodextrin, and 0.5-0.75% of a lubricant, with the balance being a filling agent. The decocting pieces are prepared by performing room-temperature soaking, low-temperature soaking, room-temperature standing, ultrasonic extraction, and purification to old Chinese toon leaves to obtain the toon leaf extract; uniformly mixing the toon leaf extract, maltodextrin, and the filling agent, and carrying out sieving, soft material preparation, granulation, drying, addition of the lubrication and tabletting. Through the method, the general flavones extraction ratio is high, and active components of the extract can be effectively kept. Meanwhile, old Chinese toon leaves are subjected to reasonable exploitation and utilization, thereby increasing the use ratio and additional value of Chinese toon resources. The provided decocting pieces are convenient to eat, have an obvious effect on assisting blood glucose reduction, and can effectively prevent diabetic complications.

This invention relates to a second battery with different electrolytes, which solves the problems of the solid storage battery with low capacity when entering the activity subject holes and capillary. The invention relates adopts abio-compound fiber material package electrode board as isolation board and filling the hydraulic electrolytes between the electrode and the isolation board. The invention overcomes the above shortcomings and has a battery with good quality and solid electrode board.

The invention discloses a rapid granulator for fertilizer production. The rapid granulator comprises a main body, wherein the upper end surface of the main body is provided with a material inlet, a stirring device is arranged in the upper end surface of the main body, and is used for adding a binder into a powder-like fertilizer entering from the material inlet, and stirring so as to completely mix the binder and the fertilizer, a power device is connected to the right side of the stirring device in a power manner, and is used for carrying out linkage on various devices and providing power, and the lower side of the stirring device is communicated to a spiral compression device. According to the present invention, the granulation method comprises: adding the powder-like fertilizer to the binder, and carrying out extrusion molding, such that the problems of moisture absorption, caking and the like during the transportation and sales of powder-like fertilizers can be effectively improved; and the rapid granulator has high automation degree, does not require operation by other personnel after fertilizer adding, can effectively ensure the chemical properties of the fertilizer without hard extrusion, and can ensure the fertility of the fertilizer.

To increase cooling efficiency in an electronic cooling device for cooling equipment having an electrical heating element, and to simplify installation to a substrate having an object to be cooled. The electronic cooling device comprises: a thermoelectric module 10 having a endothermic surface 10a and a heat radiation surface 10b; a heat radiation member 20 thermally connected to the heat radiation surface 10b; a heat-conducting member 30 whose one surface is thermally connected to the endothermic surface 10a and the other is thermally connected to the object 40 to be cooled; and an engagement member 50 that fixes the object 40 to be cooled and the heat-conducting member 30 and is mounted to the heat-conducting member 30. In this manner, penetration by heat transfer from the heat radiation member 20 is prevented to fix the engagement member 50 and the substrate 45 for retaining the object 40 to be cooled, thus increasing the cooling efficiency. Additionally, the object 40 to be cooled can be adhered to the heat-conducting member 30 even for the object 40 to be cooled, where the through hole cannot be opened from the rear.

The invention provides rustproof water-based grinding fluid with high settleability. The rustproof water-based grinding fluid is characterized by comprising the following components in percentage by mass: 5-15 percent of a settling agent, 5-10 percent of flocculating agents, 15-30 percent of lubricants, 25-30 percent of rustproof agents, 1-2 percent of sterilizing agents, 1-5 percent of coupling agents, 1-2 percent of anti-foaming agents and the balance of water; the settling agent is a mixture of organic sulfur, ethylene glycol monobutyl ether and poly-dichloro ethyl ether tetramethyl ethylenediamine. According to the rustproof water-based grinding fluid with high settleability, the problem that fine dust such as iron powder, oil stone powder and the like cannot be effectively settled in a quilted grinding process is solved, the grinding fluid can keep long-term and stable lubrication performance and cleaning performance during processing, and is long in service life, high in rustproof performance and high in comprehensive performance.

The invention relates to a method for fixing a tissue block by a formaldehyde fixative. The method comprises the following steps: (1) soaking the tissue block into the neutral or subalkaline formaldehyde fixative in a reaction vessel and stirring the tissue block; (2) using an on-line pH detector to continuously detect the pH value of the fixative, recording the processing time when the pH value of the fixative reaches a subalkaline alarm pH value, and then replacing the fixative; and (3) repeating step (2) until the pH value of the fixative is still more than or equal to 7.0 when the fixative is treated for the time as the last processing time, namely reaching the reaction end point of the tissue block processing. The method is a method for fixing the tissue block by the formaldehyde fixative, which meets the scientific and technological principle and has source basis. The method can be used for commodity type automatic pathologic tissue processing equipment and realize the intelligent and full automatic working mode in the process of fixing the tissue block by the neutral (or subalkaline) formaldehyde fixative .

A shoe upper fabric, a shoe upper and a shoe upper manufacturing method are provided. The fabric is characterized in that the fabric includes an insulating cloth layer and an aqueous slurry coating; and the aqueous slurry coating includes 1-3% by weight of starch, 1-2% by weight of calcinated silica and 95-98% by weight of water, or includes 3-8% by weight of a modified acrylic acid polymer, 1-2% by weight of calcinated silica and 90-96% by weight of water. The shoe upper comprises the fabric and a pattern spraying layer. The method includes S1) coating the insulating cloth layer with the aqueous slurry coating through a coating machine, S2) drying the insulating cloth layer coated with the aqueous slurry coating, S3) spraying the dried fabric with the pattern spraying layer on a digital printer and S4) subjecting the fabric after the pattern spraying layer is sprayed to infrared ray heating. The fabric and the shoe upper which have good upper pattern effects and good softness and are prone to batch production, and the shoe upper manufacturing method are provided.

The invention discloses a control system for stone raw material supply. The control system comprises a data storage module for storing process formula, corresponding product information, raw material information and historical data, a central processing module for receiving information of raw materials to-be-put into production, comparing the raw material information with the data of the data storage module to obtain an optimum process formula, and a man-machine interaction module for providing and / or displaying the data information processed by the central processing module and inputting the raw material information to the central processing module. The control system has relatively high data processing capacity and storage function, and has high reliability. With the control system, investment of manpower and material resources can be reduced; work efficiency can be increased; the quality of products can be guaranteed stable; and the product cost can be kept in the lowest level.

The invention relates to a method for preparing a tetramethyl bisphenol F type cyanate resin prepolymer and relates to a method for preparing a cyanate resin prepolymer. Different from the prior art, in the method, other byproduct isomers are not generated. The method comprises the following steps of: heating solid tetramethyl bisphenol F type cyanate resin serving as a major material for dissolving in a nitrogen atmosphere; adding a polymerization accelerant serving as an auxiliary material into the liquid etramethyl bisphenol F type cyanate resin, and stirring uniformly; continuing to raisethe temperature, and maintaining the temperature in an environment at 150 to 170 DEG C under the protection of nitrogen; when the refractive index is between 1.5750 and 1.5650 / 84 DEG C / 84 DEG C, cooling to obtain a liquid reactant; allowing the liquid reactant to break away from the nitrogen atmosphere; and adding butanone into the liquid reactant, stirring uniformly and cooling to obtain the tetramethyl bisphenol F type cyanate resin prepolymer, wherein the yield is 99.85 percent. By the method, the original chemical property and excellent electrical performance of the product are maintained, and the product is stable under the condition that curing time is shortened within one hour.

The invention relates to a preparation process of zinc oxide which is used on rubber, which uses indirect zinc oxide as raw material, and prepares zinc oxide for rubber through conducting surface process, filter-pressing, drying, calcination activation and disintegration for indirect zinc oxide raw material, wherein the surface process is that conducting slurry which is prepared through mixing indirect zinc oxide with water-based auxiliary agent and surface activator with activating processing for 7-9 hours under the condition of 60-100 Celsius temperature and 0.05-0.8 MPa pressure. Zinc oxide for rubber whose specific surface area is 8-30m2 / g can be prepared through the process which is simple.

A molecular generation method based on a subgraph variation self-encoding structure comprises the steps: mining frequent subgraph sets of all molecules in a training set, and then screening frequent subgraphs through counting thresholds and pharmaceutical properties based on statistics to obtain a molecular subgraph total set S* meeting conditions; performing graph decomposition on each molecule Gin the training set to obtain a corresponding molecule sub-graph set S; inputting the molecular set S into an encoder for encoding to obtain a corresponding hidden space vector Z; and finally, inputting Z into a decoder for decoding to obtain a reconstructed molecule G. The method overcomes the defects of chemical property loss, difficulty in synthesis and the like caused by the traditional atom-by-atom generation method, ensures certain chemical properties of the molecule through the application of the substructure, and further generates a molecular structure with stable chemical propertiesand easiness in synthesis; the method brings great convenience to the discovery and design of novel drug small molecules, reduces the dependence of related workers on domain knowledge, improves the design and development efficiency of novel drugs, and shortens the research and development cycle.

A multiple-effect hot air seed drying device comprises a machine body. A rack is arranged at the lower end of the machine body. Foot wheels are arranged at the bottom end of the rack. A drying box is arranged at the upper end of the rack. A dehumidification device is arranged at the left side of the top end of the drying box. A first hot air device is arranged in the middle of the top end of the drying box. A second hot air device is arranged at the middle end of the left side of the drying box. A controller is arranged at the upper end of the right side of the drying box. A third hot air device is arranged at the middle end of the right side of the drying box. A temperature sensor is arranged at the upper end of the left side in the drying box. A humidity sensor is arranged at the upper end of the right side in the drying box. Each of the left side and the right side of the bottom end in the drying box is provided with a circulating fan. A rotary screen is arranged at the middle end in the drying box. According to the multi-effect hot air seed drying device, the multi-effect hot air design is adopted, multi-side hot air drying is achieved, the seed drying efficiency is improved greatly, and the seed drying uniformity is improved greatly.

The invention discloses a preparation method of a high-temperature-resistant reinforced PC composite material. The method comprises the following steps of step 1, weighing the following raw materialsin percentage by weight: 51%-66% of a PC base material, 10%-15% of polyetherimide, 4%-6% of a compatilizer, 1%-2% of a flexibilizer, 3%-7% of chopped glass fibers, 13%-17% of long glass fibers, 0.3%-0.5% of an antioxidant, 0.3%-0.5% of a lubricant, 0.4%-0.8% of a flame retardant, 0.2%-0.4% of an anti-dripping agent and 0.01-0.03% of diffusion oil. Compared with the prior art, the high-temperature-resistance PC modified material developed by the invention has higher cost performance while ensuring the original physical and chemical properties, and therefore, the material is very popular with terminal customers.

The invention discloses a method for artificially forming a thelephora ganbajun fungal colony (shiro). The method includes the following steps: selecting an appropriate forest land and young pines, artificially excavating a fungal colony (shiro), adding highly-dispersing resin particles and amines and amides extracted from rotten thelephora ganbajun into the soil of the fungal colony (shiro), artificially monitoring and maintaining, promoting adaptability of thelephora ganbajun propagules to the soil, rapidly promoting the growth of a symbiosis system for fungi and plants, and forming the fungal colony (shiro) that enables thelephora ganbajun trophozoites to grow normally and hyphae to be active. The method has the advantages of simple operation, high survival probability of inoculation, rapid symbiosis system formation, and short period of forming the fungal colony (shiro). Resin sol is utilized to act with soil and form an area distributed with organic matter and minerals and inorganic salt; information transferring rate between pines and thelephora ganbajun is improved; the adsorption of the soil expedites the generation of microorganism under trees; the water-retaining capability of the soil is improved; circulating speed of substances in forest land and energy are actually quickened.