152 results about "Black lead" patented technology

The invention discloses a large-capacity high-power polymer lithium iron phosphate power battery. The weight ratio of anode slurry is as follows: 81 to 85 percent of lithium iron phosphate, 1 to 5.5 percent of superconduction carbon, 0 to 2.5 percent of conductive carbon soot, 0 to 4 percent of conductive black lead, 0 to 2.5 percent of crystalline flake graphite, 0 to 2 percent of carbon nanometer tube as well as 6 to 7.5 percent of polyvinylidene fluoride; the weight ratio of cathode slurry is as follows: 89 to 91 percent of cathode material, 1 to 3.5 percent of superconduction carbon, 0 to 2 percent of conductive carbon soot, 0 to 4 percent of conductive black lead, 2.5 to 3.5 percent of styrene-butadiene rubber as well as 1.5 to 2 percent of sodium carboxymethyl cellulose; the steps for preparing the battery are as follows: preparing slurry, coating the anode and the cathode, rolling and pressing a polar plate, transversely and separately cutting the polar plate, baking the polar plate, welding the polar ears of the anode and the cathode, preparing a battery cell, putting the electric core into a shell and sealing, baking the electric core, injecting liquid into the battery as well as forming the battery and dividing the volume of the battery. The invention relates to a lithium-ion secondary battery which can provide drive energies for electric tools, electric bicycles, motor cars and electric vehicles.

Ultra high molecular weight polyethylene composite with low molar mass and high friction resistance, preparation and application thereof. Raw materials of 100 parts by weight of ultra high molecular weight polyethylene, 0.1-10 parts by weight of wear-resisting agent, 0.1-5.0 parts by weight of processing aid is prepared into highly friction resistant composite by mixing, chill-pressing, heating to melt, compression molding, cooling for shaping and cutting. The mentioned utra high molecular weight polyethylene has a matrix molecular weight of greater than 6 millionl. The mentioned wear-resisting agent is MoS2 surface treated by coupling agent, black lead, lubricating grease of molybdenum, copper powder, or mixture of more than two of them. The mentioned processing agent is organic silicon oil with high boiling point, polytetrafluroethylene, oxidized polyethylene wax, olefin or polyethylene wax with high boiling point, or mixture of more than two of them.

A QTi3.5-10 black lead half-solid slurry mechanical whisk and preparation method belong to the QTi3.5-10 black lead half-solid research field. It uses peripheral and downward movements, which formed by the rotating of continuous up and down locomotive double arc straight blades, to break up the juvenile solid state formed during QTi3.5 melt solidification process and keep adding black lead grain to QTi3.5 melt. Change rotating way of the double arc straight blades to keep the disperse effect of the black lead grain, when QTi3.5 melt peripheral movement estate approaches the same estate of double arc straight blades. Use high viscosity of QTi3.5 melt and juvenile solid state grain to stop float of the black lead grain and get QTi3.5-10 black lead half-solid slurry, and also solve the problem that it couldn't get QTi3.5-10 black lead half-solid slurry directly form liquid state with conventionality engine.

To improve the stability of the graphite base body and the protecting film, the technical method is applied. The graphite negative material of the lithium ion battery is composed of the graphite and the shell covering the graphite. The shell is the carbon coverage with low crystallization disorderly layer structure. The producing procedure is as below: (1) Cover the bitumen onto the surface of the black lead particle. (2) Process the covered bitumen with heating processing. Compared with existed technology, the processed bitumen possesses the property of strong strong ability for combination and cycling stability with low cost.

The invention discloses a high-temperature brazing filler metal, relating to a brazing filler metal. The invention solves the problem that joints obtained by using the prior brazing filler composite material have low shearing strength. The brazing filler metal comprises Ti or TiH2, Ni and Nb. When the high-temperature brazing filler material is used to braze C/SiC composite material and the brazing joint of the C/SiC composite material, room temperature three-point bending strength reaches 50MPa-71MPa, and the room temperature shearing strength of the brazing joint of the C/SiC composite material and metal reaches 90MPa-180MPa, moreover, the retention rate of the 800 DEG C high-temperature shearing strength of the brazing joint is more than 69% and the retention rate of the 800 DEG C high-temperature shearing strength is more than 42%. When the high-temperature brazing filler material is used to braze black lead and the joint of Nb, the room temperature shearing strength reaches 30MPa-60MPa.

The invention provides a method for treating industrial waste water by means of chemical oxidation or chemical deoxidation in photoelectrocatalysis, belonging to the field of environmental protection. The method comprises the following steps of: taking a titanium positive electrode oxidation method-prepared high-ordered titanium-based TiO2 nanotube array thin film as an optical positive electrode or an optical negative electrode; taking high-purity black lead as an electrode; and degrading organic matter or heavy metal ion of the industrial waste water into H2O and CO2, low valent metal ion or metal simple substance under the conditions of the connection of an external circuit and the optical radiation. The invention has the advantages that: the adopted catalytic agent optical positive electrode is the high-ordered array thin film which is self assembled by anodic oxidation and is perpendicular to the bottom of the titanium base, thereby not only overcoming the defects of the existing powder body loading thin film optical positive electrode such as bad bond, easy falling and gradually-attenuated catalysis efficiency, but also being capable of directly using the sunlight by doping the modifying property to the array thin film, and being an advanced technology for treating single waste water (dye such as paper mill organic waste water, printing and dyeing mill organic waste water, or heavy metal ion such as electroplate factory chromium-containing waste water) or complex waste water with energy saving, high efficiency, high selectivity, cleaning and low cost.

The invention relates to the method of making steel directly using the inducing stove, the method of directly making steel using the iron ore, ferric oxide sheet, the steel dregs in the inducing stove is disclosed. It belongs to the metallurgy technical domain. The producing process includes the blow steps: 1. puddling: the iron ore, the ferric oxide sheet, the one or the three sorts of the scruff by the magnetism choosing or the steel dregs or the iron and the steel dregs, the black lead mine block and the limestone block are put in the inducing stove, the temperature is promoted to the 1350-1400 to melting to the molten iron and pushing aside the dregs, 2. steel-making: the limestone powder and the oxygen are added in the said molten iron to promote the temperature to 1650-1680, the molten steel is gained, thereinto, the quantity put of the limestone is the 2-5 percentage of the iron ore powder, the ferric oxide sheet, the one sort or the three sorts of the magnetism choosing scruff or the steel dregs or the iron and the steel dreg, 3. casting the steel ingot, the steel embryo or the cast steel piece. The energy consume of the invention is low.

The invention deals with the method of using the combination of the iron ore powder and the blind mine powder to produce directly the iron and the steel by the converter, the steps are showed below: the step one, firstly, the blind mine block or the black lead mine block are added in the converter, secondly, the combination of the iron ore powder and the blind mine powder is added, the stream, the air or the oxygen are added from the roof, the stream, the oxygen or the azote and the combination of the air and the powder of the blind mine powder are added from the bottom of the stove, the process of blowing and smelting is keep 25-35 minutes, the temperature is promoted to the 1650-1680 to produce the molten iron, the molten iron is added in the ladle, the percentage of the outcome quantity of the molten iron accounts for the 70-90 compared with the overall molten iron; the step two, the blind coal block or the pot lead block, the limestone are added in the converter, then the combination of the iron ore powder and the blind mine powder is added, the step one is executed repeatedly. The invention has many merits such as the low invest and the low energy consuming.

The invention provides a composite porous ceramic of silicon carbide-cordierite, its preparing method and application; during the production of said composite porous ceramic, we take silicon carbide particles as the first phase, and cordierite as the second phase. The cordierite phase is made by clay, talcum and aluminum oxide, etc, through burning at the temperature of about 1400 Deg C; during the formation of cordierite phase, silicon carbide particles are connected together through cordierite phase and form porous ceramic with certain strength; in order to enhance the factor of porosity of said porous ceramic, we need to add some black lead particles as pore-creating agent; the porous ceramic produced in this way is made up of 10-90wt% cordierite and 90-10wt% silicon carbide, whose factor of porosity is 24~65%, pore size distribution is double quotidian mode, and bending strength is 4~55MPa, coefficient of thermal expansion is 1.71~6.26*10-6K-1 (20~800 Deg C), thermal-shock resista nce at the temperature of 1000 Deg C could reach more than 5 times; The porous ceramic provided in said invention could be used to produce wall-flowing mode honeycomb ceramic and enhance the purification capacity to end gas and waste gas.

The invention discloses a light high-heat conducive nano composite material and a preparation method thereof; wherein, the composite material is formed by mixing 50 to 99 wt (weight percent) percent of black lead powder basic body material and 1 to 50 wt percent of nano materials with high-heat conducive performance. The preparation method comprises: a. selecting the black lead powder with a granularity between 0.1 and 100 microns and the nano carborundum powder and nano silicon powder with a granularity between 10 and 500 nanometers; b. mixing the black lead powder, the carborundum powder and the silicon powder materials under a stirring condition; simultaneously adding a macromolecular caking agent and obtaining the precursor powder of the composite material by carrying out drying and dispersing to the mixed materials; and c. thermosetting and shaping the precursor powder under an oxygen-free atmosphere. The composite material of the invention has the characteristics of easily-obtained and cheap materials, low production cost, light weight, and good heat radiation effect, and can partially or completely replace a metal heat radiating material.

A mixed adsorbent for the absorption bed of air conditioner is prepared from calcium chloride and expanded graphite in the weight ratio of (60-80%):(20-40%) for the bulk one or (55.1-67.7%):(17.2-32.7%) for the solid one. Its advantages are high gas osmosis, high heat conductivity and high refrigerating efficiency.

The invention is a type of composite material with properties as aldary palosome, resistance to high temperature and self lubricating capability. It has following characters: its palosome is aldary while component element of self-lubricating is black lead and the percentages by weight of its composition is respectively: Ni 5-15+C 5-15+Sn 4-8+Zn 4-8+Pb 2-5+Mn 0.5-3+Fe 1-3+Cu. This type of composite material has inoxidizability, resistance to corrosion, resistance to high temperature and wearability etc. It mainly used to axletrees and leading cover with the temperature between 200-500Deg.C.

The invention is a manufacturing method for a kind of micron tiny crystal titanium nickel-niobium shape memorizing alloy block materials, 45%-50% titanium, 40%-45% nickel, 5%-10% niobium are melted and produced into titanium nickel-niobium alloy cast ingot, and cuts the titanium nickel-niobium alloy block material into blank, and carries on surface finish process, and paints with glass lubricate, uses isometric curved squeezing mould with 90-120 degrees channel angle, the mould cavity surface is painted with black lead lubricate, the blank and mould are heated and carries on temperature reservation, and takes them out to be squeezed at the same time, finally gets the product. The invention solves the problem that the bad plastic property of titanium nickel-niobium shape memorizing alloy in room temperature, enhances the alloy mechanical performance, and lowers the cost.

The invention discloses a process to purify diamond, which comprises the following steps: grinding diamond synthesized block into particles; putting into autoclave; adding into the water solution of sulfuric acid or azotic acid or alcaine with density at 10-20%; reacting at normal temperature for 36-48 h; stripping metal; balling; sluicing; clearing black lead; drying; getting the purified diamond. This method does not use concentrated nitric sulfuric mixed acid and can eliminate a good deal of yellow acid mist, which can improve the safety in industrial process.

The invention discloses a kind of kernel shell type carbon negative material of a kind of lithium ion secondary cell and the manufacturing method. The materials are manmade black lead or natural black lead powder with particle size of 5-50ª–m, the shell is carbonized material which uses asphalt thermal fasculation reaction resultants and whose thickness is 0.01-0.2ª–m. The manufacturing method includes: crushing the black lead, the thermal fasculation reaction, rinsing and eliminating the asphalt component and the carbonization process to the covered black lead micro powder. The merits of the invention lie in: the efficiency is high and the circular performance is excellent. The method is simple and the energy consumption is low, and the cost is low.

Silver -black lead electrical contact composite plating and manufacture method thereof, which belongs to metallic material technology field. The steps are: confecting compound plating solution, black lead granule dispersing, and substrate preprocess, compound plating solution ingredient: methane sulfonic acid silver 0.05M/L, succinimide 0.15M/L-1.5M/L, composite plating. boracic acid 0.5M/L-0.5M/L, black lead content in solution 2g/L-50g/L. The composite plating is made up of silver and black lead, wherein the black lead volume percent is: 1-15%, silver volume fraction 85%-99%, contact resistance 1.2-2m Omega, hardness 70-100Hv, density more than 99.9%. The present invention plating solution is protection environment and non-toxic; the ultrasonic energy promoting adequate distribution of black lead granule, the produced composite plating has smooth surface and high density.

The invention makes public a kind of high temperature separating material which can prevent dregs from adhering the dregs pot. The material includes 30~50 units of dolomite, 30~45 units of bentonite, 18~28 units of clay, 1.0~2.5 units of trimer sodium phosphate, 0.5~3.0 units of carboxymethyl cellulose and 135~220 units of water in proportion of weight. All water-fast particles' size should not lesser than 180 eyes. And about 0.5~5 units of black lead can be joined in the material. The material has good property of high temperature, dregs proof, and anti-strip. It can prevent the pot from being dregs adhered effectively, so it can make sure turning dregs automatically and high velocity of the pot. Adhering degree of the material is moderate, and no deposition and delamination in 72 hours. The material has good working performance.

The invention is a extension growing device for metal organic chemical gas phase deposition kalium nitride base film, it includes reactor, whose character lies in: the reacting room is tube type double layer structure, and it is made up interior tube and exterior tube, the interior tube cavity is reacting cavity, the interior and exterior are inserted in the upper and subjacent fixing device, there is cooling water cavity between the interior and the exterior, the outer wall of exterior tube is winded with conduction heating coil, there sets a black lead base in the interior tube, the black lead is set on a ceramic tube, the ceramic tube connects with gearing part. The reactor has water cooling system, in order to maintain the low temperature within reactor, especially the part above crystal piece and gas mixing room; it can prevent the occurrence of pre-reaction.

The invention embodiment discloses a high speed train powder metallurgy brake pad. The material of the brake pad comprises the following powder raw material by weight percent: 60 to 70 copper powder, 4 to 10 tin powder, 4 to 6 ferrous powder, 4 to 9 black lead, 2 to 3 silicon dioxide, 2 to 6 zinc powder, 3 to 5 molybdenum disulfide and 2 to 6 zircon. The invention further discloses the preparation technology of the powder metallurgy brake pad. The invention has the advantages that the copper with high thermal conductivity and good plasticity is used to be matrix, tin and zinc are added and alloyed in the sintering process, the sintering temperature is reduced, the abrasion performance is improved, the silicon dioxide and the zircon are added to improve friction coefficient, the black lead and the molybdenum disulfide serve as a lubrication component to protect duality and stabilize the friction coefficient. The abrasion of the brake pad produced through the method on a dual disc is small. The invention has the advantages of stable friction coefficient, small abnormal wear and noise occurrence probability and environmental protection and the brake performance thereof can meet the requirement of the high speed train.

The invention relates to a preparation method for nano zirconium diboride ceramic powder, which is characterized by comprising the following steps: 1) selecting materials: selecting according to a mol ratio of 1 : 3 to 1 : 5 between Zr and amorphous boron powder in soluble zirconium salt; 2) selecting one of the two methods as follows: a) using a coprecipitation method for gel forming to obtain xerogel; b) using a sol-gel method for gel forming to form the xerogel; 3) preparing precursor powder; 4) synthesizing quickly: arranging the materials into a large current reaction synthesizer; the inside of a black lead reactor is protected by vacuum or insert gases; applying a large current directly on the black lead reactor, quickly heating to 800 and 1500 DEG C at the temperature rising speed of 50 to 500 DEG C/min, preserving the temperature for 0 to 60 minutes to obtain a powder sample; and 5) chemical processing for obtaining the nano zirconium diboride ceramic powder. The method has the characteristics of quick synthesizing speed and high efficiency; the purity of the obtained nano zirconium diboride ceramic powder is high (equal to or more than 95 percent); and the grain diameters of the obtained nano zirconium diboride ceramic powder are uniform and thin(the average grain diameter is equal to or less than 300nm).

The invention discloses an oil-free lubrication element material-low cost carbon fiber filling politef and preparing method on general purpose reciprocated compressor, which is characterized by the following: comprising with 60-80% politef, 10-35% sum of carbon fiber and carbon powder and not more than 15% filling agent; setting carbon fiber : carbon powder as 1 : 0. 5-1. 5; choosing the filling agent from one or more than one black lead, glass fiber, molybdenum disulfide and copper powder; mixing at normal temperature; getting the product. This invention possesses long lifespan, low cost and wide applicability.

Disclosed is a fiber-reinforced polyolefin resin composition containing (A) 1-20 mass % of carbon fibers having a fiber diameter of 3-20 μm, (B) 3-50 mass % of black lead (graphite) having an average particle diameter of 1-100 μm, and (C) 25-95 mass % of a polyolefin resin, wherein the mass ratio of the black lead (graphite) (B) (Wg) to the carbon fibers (A) (Wcf), namely mass ratio (Wg/Wcf), is 1-10. Also disclosed is a molded body of such a fiber-reinforced polyolefin resin composition.