58results about How to "Sufficient liquidity" patented technology

A preparing method of a soft carbon graphite composite anode material is provided. The method includes S1) a step of mixing natural spherical graphite and asphalt, heating and dipping under a preset pressure after fully mixing to allow the asphalt to be softened and to flow into and fill inner pores of the natural spherical graphite, and cooling to obtain an intermediate, and S2) a step of carbonizing the intermediate, crushing and grading to obtain the composite anode material. According to the method, the asphalt is softened at a high temperature, flows into and fills the inner pores of the graphite particles and then carbonization is performed to obtain the composite anode material with excellent cyclic performance. The method is simple in process, low in cost and high in practicality. The soft carbon graphite composite anode material prepared by the method and a lithium ion battery applying the soft carbon graphite composite anode material are also provided.

The invention provides a preparation method of a graphite negative electrode material. The method comprises the following steps: S1: after natural spherical graphite and asphalt are mixed evenly, carrying out heating dipping under preset pressure intensity, carrying out asphalt softening, and causing the asphalt to flow and fill the internal pore of the natural spherical graphite, and cooling to obtain an intermediate product; and S2: carrying out graphitization on the intermediate product, and carrying out smashing and grading to obtain the graphite negative electrode material. By use of the preparation method of the graphite negative electrode material, the asphalt is softened at a high temperature, the softened asphalt flows and fills the internal pore of a graphite particle, and the graphite negative electrode material with excellent circulation performance is obtained through the graphitization. The preparation method has the advantages of being simple in technology, low in cost and high in practicality. The invention also provides the graphite negative electrode material prepared from the preparation method, and a lithium ion battery which applies the graphite negative electrode material.

The invention relates to an in-situ particle reinforced aluminum matrix composite material, in particular to a cross-scale in-situ particle reinforced aluminum matrix composite material and a preparation method thereof. The method comprises the following steps of: melting Al-Si alloy; adding 10-25 percent by weight of SiO2 for melting according to proportioning requirement of volume fraction of reinforcing particles of different scales in the composite material; heating to 800-850 DEG C, preserving the heat for 5-10 minutes and then refining; subsequently performing ultrasonic treatment; adding 1-2 percent by weight of titanium powder and 0.3-0.5 percent by weight of rare earth during ultrasonic treatment; standing for 5-10 minutes; slagging off; adjusting temperature for pouring; and finally forming (Si+Al3Ti) microparticle and Al2O3 nanoparticle reinforced aluminum matrix composite material. The method has the advantages of simple preparation process, low cost, low overall reaction temperature and less aluminum burnt loss.

The invention provides feed for metal injection molding and belongs to the field of metal molding. The feed is prepared by mixing 9.2-10.5 wt% of binder with 89.5-90.8 wt% of metal powder. The metal powder laser grain size distribution D90 ranges from 18 micrometers to 30 micrometers. The binder comprises polyformaldehyde, a high-molecular polymer, a plasticizer, a surfactant, a compatilizer and lubricant. A preparation method of the feed includes the steps that the binder is obtained after polyformaldehyde, the high-molecular polymer, the compatilizer, the plasticizer, the surfactant and the lubricant are mixed to be uniform at the temperature of 150-200 DEG C; the feed is prepared after the binder and the metal powder are mixed. The feed is high in fluidity, the binder is easy to remove, and the obtained product is high in dimensional precision and small in impurity content. The preparation method of the feed is easy and convenient to operate, the uniform feed can be efficiently obtained, various ingredients in the feed are not damaged, and the use effect of the feed is well guaranteed.

The invention discloses a degreasant composition for a hot-dip galvanized wire. The degreasant composition is used for surface treatment in steel rolling. The high-efficiency degreasant composition for the hot-dip galvanized wire comprises the following chemical components by mass: 20 to 35% of an alkali metal hydroxide, 1 to 5% of a second alkali source, 1 to 10% of an inorganic degreasing auxiliary agent, 1 to 10% of an organic degreasing auxiliary agent, 1 to 5% of a surfactant and 0.5 to 5% of an de-foaming agent, with the balance being water. The degreasant composition provided by the invention does not contain silicate, allows a hot dip galvanizing coating to have good adhesion and is applicable to degreasing of the hot-dip galvanized wire; the GPES de-foaming agent used in the degreasant composition can more effectively improve a degreasing effect under the condition of no inclusion of silicate and does not generate foam in use. The degreasant composition has the advantages of simple composition, usage of cheap and easily available raw materials, good stability, no corrosion to a metal material, high degreasing efficiency, friendliness to the environment, applicability to a low temperature environment, capacity of guaranteeing subsequent galvanizing quality in steel rolling, etc.

The invention provides an improved residue soil regeneration backfill material and a preparation method thereof, wherein residue soil is used as a main component and is doped with a proper amount of cement, water, fly ash and an early strength agent, and mixing stirring is performed to prepare the improved residue soil regeneration backfill material. The preparation method comprises: removing foreign matters and contaminated and deteriorated parts, respectively weighing various components according to the formula, and mixing and stirring the weighed components until the texture is uniform so as to obtain the finished product. According to the invention, with the method, the reutilization of residue soil is achieved, the environment pollution caused by pipeline excavation operation is reduced, the engineering cost of backfill operation is reduced, and the later strength of the backfill material is improved while the backfill material has enough fluidity.

The invention discloses high-temperature-resistant flame-retardant powder paint and a production method thereof. The powder paint is produced from the following raw materials in parts by weight: 30-60parts of organic silicon resin, 30-60 parts of epoxy resin, 3.4-6.8 parts of modified dicyandiamide, 0.2-0.4 part of dimethylimidazole, 10-20 parts of silica powder, 10-20 parts of mica powder, 0.3-0.6 part of a sand textured agent, 30-60 parts of a flame retardant and 1.2-2.4 parts of carbon black. A film, which is formed after the produced powder paint is subjected to spraying and curing, has excellent high-temperature-resistant performance, fireproof performance and flame-retardant performance in the premise that the mechanical performance, including the levelling performance and the anti-impact performance, of the film is not affected; and according to the powder paint, the production method is simple, and industrial production can be conducted.

The invention discloses a die-casting forming method free from shrinkage cavity and shrinkage porosity defects for a thick wall die-casting fitting. By the adoption of the method, the problems of shrinkage cavity, shrinkage porosity and air hole defects which are likely to happen to a thick wall aluminum alloy die-casting fitting frequently can be solved effectively. The die-casting forming method includes the main contents that a specific pouring method with the low superheat degree is adopted, large fullness pouring with the pressure chamber fullness being 60%-70% is used, the high-pressure mold filling die-casting technique is utilized, and the internal compactness zero-defect performance of the die-casting fitting is achieved. The local pressurization structure is added in mold design, and pressurization feeding at the thick wall position far away from the position of an inner casting gate is realized. By the adoption of the method, the casting defects of the thick wall die-casting fitting can be reduced, the rejection rate of products is lowered, material wasting is avoided, cost is reduced and benefits are increased.

The invention discloses a low-odor spray-coating-free PC/ABS (polycarbonate/acrylonitrile butadiene styrene) material and a preparation method thereof. The material is prepared from the following ingredients including 40 to 80phr of PC, 20 to 60phr of ABS, 5 to 10phr of AS, 0 to 1phr of lubricating agents, 1 to 1.5phr of deodorants, 0.5 to 1phr of heat stabilizers, 0.5 to 1phr of color masterbatch, 0 to 10phr of compatibilizers, 0 to 5phr of processing auxiliary agents, 0.1 to 0.5phr of antioxidants and 0 to 5phr of ultraviolet light absorbers. The material has the low odor and spray-coating-free appearance requirements; the odor grade is lower than or equal to 3.0; the appearance luster is good; the blackness is high; the thermal stability is high; the defects of flowing marks, melting and connecting wires, silver silks and the like cannot be easily generated; the spraying work procedure is omitted; the good spray-coating-free effect is achieved; through the creative selection on raw materials and auxiliary agents and the process innovation, a low-odor spray-coating-free PC/ABS material is produced, and is obviously superior to similar products in the market.

The invention relates to foam concrete for wet-spraying support of a coal mine and a preparation method. The foam concrete comprises a cementing material, water, an admixture and a foaming agent, wherein the cementing material is prepared from cement and fly ash, and the admixture comprises glue, a water reducing agent, an accelerating agent, fiber and cellulose. The invention can produce the foam concrete which not only has light weight and the functions of fire resistance, crack resistance, dynamic pressure resistance and the like, but also has great viscosity, and is particularly suitable for concrete spraying support operation of the coal mines and underground works. The formula can overcome the shortcomings of high rebound degree, large dust, incapability of ensuring spraying strength and the like during construction of a dry spraying method; and the problems of too fast solidification, pipe blockage and the like of an existing wet spraying method are also solved.

The invention discloses 420 stainless steel powder for MIM and a water-gas combined atomization pulverizing method thereof, and belongs to the field of alloy materials. The 420 stainless steel powdercomprises the following elements in percentage by weight: 0.5-0.6% of C, less than or equal to 1.0% of Si, 0.7-1.5% of Mn, 0.1-0.7% of N, 12.0-14.0% of Cr, 1.0-3.0% of Ni, 0.5-1.5% of Mo, 0.1-0.5% ofCo, 0.5-1.5% of Nb and the allowance Fe and impurities. The method comprises the steps of adopting a medium-frequency induction furnace for smelting, dumping the medium-frequency induction furnace, and enabling molten steel to flow into a tundish and flow out of a leakage hole; enabling high-pressure water to be sprayed out from a nozzle of the spraying disc and focused on the molten steel flow tocrush the molten steel into fine particles, and cooling the fine particles into metal particles in the flying process; and conducting filtering, vacuum drying and screening, and thus obtaining fine powder of which the particle size is less than 400 meshes. The method has the beneficial effect that the alloy powder prepared by the process has good degree of sphericity. Due to the good degree of sphericity, the powder can obtain enough flowability in the process of being injected into a mold cavity in the MIM process, the mold cavity can be fully filled with the powder, an injection blank withhigh density is obtained, and size fluctuation is small.

The invention relates to the technical field of production of lithium battery membranes and discloses production equipment for a three-layer co-extrusion membrane of a lithium battery. The equipment comprises an extrusion platform, a first power motor, a second power motor, a first screw extruder, a second screw extruder, a curtain coating platform, a melt pump, a curtain coating machine, a swingdevice, a pulling device, a rolling device, a metal separator and a three-cavity mold. The bottoms of the first power motor, the second power motor, the first screw extruder and the second screw extruder are fixedly connected to the top of the extrusion platform separately, and the output ends of the first power motor and the second power motor are in transmission connection with the input ends ofthe first screw extruder and the second screw extruder respectively. According to the production equipment, the problem is solved that after being extruded, the raw materials are easily moved in different layers. The raw materials are evenly distributed after being extruded by the extruders, the overall raw materials are homogenized, the fluidity of the extruded raw materials can be improved, andthe effect of plastifying the raw materials is improved.

The invention discloses an underground coal mine fire preventing and extinguishing material and method. The underground coal mine fire preventing and extinguishing material comprises, by weight, 2 parts to 3.5 parts of water glass, 1.5 parts to 2.5 parts of sodium metaaluminate and 95 parts to 96 parts of water. Under the condition that it is ensured that the fire preventing and extinguishing material has the enough fluidity, the water-retaining property of the material can be effectively improved, the underground coal mine fire preventing and extinguishing work effect can be greatly improved, and the coal mine production safety can be forcefully ensured.

The invention relates to a tire sidewall rubber without a mold release agent and a processing technology thereof. According to a design scheme provided by the invention, the formula mainly comprises the following components: natural rubber with a grade of SMR20, butadiene rubber BR9000, stearic acid, active zinc oxide, an anti-aging agent 4020, an anti-aging agent 3100, an anti-aging agent TMQ, rubber protective wax, carbon black N339, an internal releasing agent with a grade of AT-16, environment-friendly aromatic hydrocarbon oil with a grade of Vivatec 500, an accelerant CBS, insoluble sulfur IS-6005, and an anti-scorching agent CTP. The formula employs a natural rubber and butadiene rubber coexistent raw rubber system, uses the new materials, i.e. the internal releasing agent with a grade of AT-16, the active zinc oxide and environment-friendly aromatic hydrocarbon oil with a grade of Vivatec 500. By applying the formula to rubber production, the operation is simple and convenient, the production cost is low, and the rubber processing properties are good. The invention provides a tire sidewall rubber without a mold release agent for tire production.

A shape heating and cooling mold, comprising a die, a cavity is formed on the die, the bottom of the die is provided with an additional block insertion groove, and the top of the additional block insertion groove is processed with an upper groove, the upper groove The arrangement is consistent with the outline of the bottom of the cavity; the additional block inserts an additional water channel block into the groove, the shape of the additional water channel block is consistent with the insertion groove at the bottom of the die, and the heat-resistant Spray sealing material to fill; the top of the waterway additional block is formed with a lower groove, and the lower groove cooperates with the upper groove to form a waterway; the waterway runs through the die, and the two ends of the waterway respectively form a water inlet and an outlet on the side wall of the die Nozzle; the mating surfaces of the additional block of the water channel and the insertion groove of the additional block are all inclined inward, and the inclination angle is 85 to 88 degrees. There is a pressing block under the die, which is fixed on the die by bolts, The tight block is against the additional block of the water channel, so that the additional block of the water channel is fixed.

The invention discloses a one-time formed inflatable hollow tire and a manufacturing method thereof and belongs to the field of tire manufacturing. The tire comprises a cavity structure, an opening structure, an air impervious liner and an inflating valve installing hole, wherein the cavity structure is formed in a tire body in the periphery direction, a hollow cavity is formed in the tire body, the opening structure is arranged in a groove in an inner ring face of the tire body in the periphery direction, the opening structure enables the cavity structure and the outside to communicate, the air impervious liner is formed by a first air impervious liner body formed on the surface of the cavity structure and a second air impervious liner body for opening and closing the opening structure, and the inflating valve installing hole is formed in one side of the tire body and enables the cavity structure and the tire body to communicate. According to the tire, by means of cooperation of the opening structure and the cavity structure, the hollow tire body can be formed at a time, the air impervious liner can also be coated conveniently, the manufacturing technology of the tire is simplified, an inflating valve is installed through the inflating valve installing hole to inflate the hollow structure, by means of cooperation with the air impervious liner, a vibration reducing cavity for stabilizing air pressure is formed, and the vibration reducing performance is improved greatly.

A two-phase separating unit and the two-phase separator, the fixed-bed reactor for catalytic reaction and the gas adsorbing apparatus, all of which contains said two-phase separating, are disclosed. Said two-phase separating unit is composed of two or more perforated barrels to form one or more annular cavities, in which the solid particles are filled to form the inrregular gap channels.

The invention discloses a coal gangue active activator and high-fluidity high-solid-content cemented filling slurry, and the coal gangue active activator is composed of the following components: 2.5-15 parts by weight of calcined dolomite or calcined limestone, 3-9 parts by weight of silicate, 35-80 parts by weight of caustic soda, 3-22 parts by weight of gypsum and 0.025-1.4 parts by weight of a water reducing agent. The high-fluidity and high-solid-content cemented filling slurry is composed of water and a cemented filling material. The cemented filling material is composed of 65-95 parts by weight of coal gangue and 5-35 parts by weight of a coal gangue activity exciting agent; the mass fraction of water in the high-fluidity and high-solid-content cemented filling slurry is 7.2-9.8 wt%. The coal gangue can be hydrated and hardened to generate enough strength without using cementitious materials such as cement, and the cemented filling slurry is low in water content and good in fluidity, does not shrink after being hardened, and can be well topped due to micro-expansion.

A coating film 2 of an uncured resin composition which is curable in response to irradiation with an energy beam is formed on the surface of a molding. A desirable portion of the coating film 2 is irradiated with the energy beam. Thus, the portion of the coating film 2 irradiated with the energy beam is cured to form a surface decorative layer 3.