34results about How to "Meet raw material demand" patented technology

The invention discloses a high-strength and high-conductivity CuCrZrMg series copper alloy wire. The high-strength and high-conductivity CuCrZrMg series copper alloy wire comprises the following components in percentage by mass: 1.5-15.0% of Cr, 0.1-2.5% of Zr, 0.05-1.0% of Mg and the balance being copper and inevitable impurities. In addition, the invention also discloses a preparation method ofthe high-strength and high-conductivity CuCrZrMg series copper alloy wire. The preparation method comprises the following steps: step one. carrying out fusion casting to obtain an ingot casting; steptwo. carrying out surface treatment and homogenization treatment on the ingot casting; step three. carrying out cold forging to obtain a bar, and then carrying out cold rotary forging to obtain a wire bar; and step four. drawing the wire bar to obtain the wire, and carrying out ageing treatment on the wire. The high-strength and high-conductivity CuCrZrMg series copper alloy wire has the beneficial effects that the wire is reasonable in design of the alloy components, high in alloying degree, appropriate in production cost, controllable in technology and environmentally-friendly and has highalloy strength and high electrical conductivity; and the high tensile strength and the high electrical conductivity can meet the requirements of high current connectors, electric power, machinery andelectronics and the like on high-strength and high-conductivity materials.

The invention discloses a method for preparing boron carbide aluminum composite ceramic powder by adding alumina powder. The steps are as follows: (1) first crush the carbonaceous reducing agent into powder; (2) crush the carbonaceous reducing agent powder, boric acid powder and Al 2 o 3 The powder is batched, mixed, and pressed into pellets according to a certain proportion, and then the pellets are dried; (3) the pellets are put into a heating furnace for high-temperature smelting to prepare boron carbide composite ceramic coarse powder; (4 ) breaking the obtained coarse powder and classifying and removing impurities; (5) reclaiming and reusing the obtained slag powder, and using the boron carbide composite ceramic fine powder to make boron carbide composite ceramic sintering raw materials. Compared with traditional electric arc furnace smelting, the present invention improves the utilization rate of raw materials, significantly reduces production cost and energy consumption; directly adds Al to the configured raw materials 2 o 3 Compared to the in situ generation of Al in the reaction 2 o 3 There are obvious advantages; the fracture toughness of the boron carbide composite ceramics is obviously improved; the process can reduce environmental pollution and reduce high-temperature gas emissions.

The invention discloses a preparation method of titanium powder or titanium alloy powder special for porous titanium film. The method comprises: 1. placing the pressed titanium block or titanium alloy block in a furnace; 2. vacuumizing the furnace and keeping it warm ; 3. Fill hydrogen into the furnace to carry out self-propagating hydrogenation reaction; 4. Titanium block or titanium alloy block absorb hydrogen and saturate to obtain titanium hydride block or titanium hydride block; 5. Crushing and sieving; 6. Coarse powder crushing; 7. Titanium powder or titanium alloy dehydrogenation powder obtained by heat preservation and dehydrogenation; 8. Titanium powder and titanium alloy powder obtained by crushing, sieving, magnetic separation and flotation. The present invention utilizes the heat released by the hydrogenation reaction to meet the heat energy supply required for the continuation of the hydrogenation reaction to carry out a self-propagating hydrogenation reaction, reducing the increase in heat generated by the reaction, avoiding incomplete hydrogenation of the titanium block or titanium alloy block, and improving the efficiency of the titanium block or titanium alloy block. The degree of hydrogenation embrittlement of titanium alloy block can finally obtain finer and uniform titanium powder or titanium alloy powder, which improves the quality of titanium powder or titanium alloy powder.

The invention relates to a 15-ton inverted-U-shaped combination device and a production process for producing sponge titanium. The 15-ton inverted-U-shaped combination device is composed of a reaction furnace, a reactor 28, a reactor cover 11 and a cooling water jacket 25, wherein the reactor 28 comprises a cold-end reactor and a hot-end reactor which are arrayed in parallel; the two reactors are communicated via the reactor cover 11 above; the cold-end reactor is located in the cooling water jacket 25; and the hot-end reactor is located in the reaction furnace. A large furnace has the advantages of being low in energy consumption, high in capacity, stable in quality, and high in labour productivity; and with the progress of a production technology for sponge titanium, the furnace profile is developed towards a large-size direction. The invention provides a 15-ton inverted-U-shaped combination device and a production process for sponge titanium.

A preparation method of pure natural ligustrum quihoui carr fruit's anthocyanin belongs to the technical field of deep-processing of food resources. The invention relates to a solvent extraction and column chromatography combination technique for purification and preparation of high-purity anthocyanin. The preparation method is characterized by low cost, simple preparation technology, short production cycle, safe and nontoxic reagent, high extraction purity, easy industrial production and the like, and is of great significance for developing high value-added ligustrum quihoui carr fruit products. The prepared ligustrum quihoui carr fruit's anthocyanin with anthocyanin purity being 30-35% is nutritious and safe, is stable, is easy to store, and has a wide application prospect in fields of food, medicine, biochemistry and the like. Through preparation of the anthocyanin product in ligustrum quihoui carr fruit, full utilization of ligustrum quihoui carr fruit is raised, and a ligustrum quihoui carr fruit's anthocyanin purification technology is given attention. Thus, waste ligustrum quihoui carr fruit is changed into valuable things, providing powerful guarantee for realizing economic value of the ligustrum quihoui carr fruit.

The invention relates to a method for preparing high-purity sodium fluorotitanate. The method comprises: adding NaOH solution to the fluorotitanic acid solution, controlling the molar ratio of NaOH to silicon in the solution to be (1.1-1.8):1, and stirring Reaction, solid-liquid separation after the reaction is completed, to obtain a fluotitanic acid purification solution; adding NaOH solution to the obtained fluotitanic acid purification solution, stirring the mixed solution to react, and solid-liquid separation after the reaction to obtain sodium fluotitanate. The present invention prepares high-purity sodium fluorotitanate products with silicon content <0.03%, iron content <0.01%, chromium, manganese and other main impurities content <0.002%, purity ≥ 99.5%, and good product index stability through the above method , which can meet the raw material demand of downstream metal titanium or titanium alloy production. The invention simultaneously simplifies the preparation process of the sodium fluorotitanate, reduces the difficulty of process implementation, improves industrial applicability, and has good application prospects.

The invention discloses a method for preparing a battery grade lithium phosphate composite material. The method comprises the following steps of: adding a lithium source and a phosphorus source into deionized water, and fully blending and grinding for 2 to 8 hours, wherein a molar ratio of the lithium source to the phosphorus source is (0.97-1.03):(0.97-1.03); performing spray drying to obtain a spherical lithium phosphate complex precursor; and sintering the spherical lithium phosphate complex precursor at high temperature of between 500 and 700 DEG C for 4 to 16 hours in air or oxygen to obtain the battery grade lithium phosphate composite material, wherein the lithium source is one or more of lithium carbonate, lithium hydroxide and lithium acetate, and the phosphorus source is one or more of phosphoric acid, ammonium dihydrogen phosphate, diammonium hydrogen phosphate and ammonium phosphate. The preparation method has the advantages of middle reaction conditions, high equipment reliability and no waste liquor pollution.

A brine impurity removal device, including a cylindrical shell, a guide tube, and a stirring device, the cylindrical shell is composed of an upper cylindrical shell and a lower conical shell, the conical The bottom of the section shell is provided with a salt mud outlet, and the opening and closing are controlled by a valve. The diameter of the guide tube is smaller than the inner diameter of the cylindrical section shell. There is a distance between the opening of the lower end of the cylinder and the shell of the conical section, and the stirring blades of the stirring device are arranged in the inner space of the guiding cylinder, which is used to mix the liquid in the hollow of the guiding cylinder and drive the liquid to flow downward , the upper part of the cylindrical shell is provided with a brine overflow port, the cylindrical shell is provided with a brine conveying pipe, and the discharge port of the brine conveying pipe is located at the upper part of the inner hollow of the guide cylinder, and the cylindrical shell The impurity removal agent conveying pipe is arranged on the top, and the outlets of the impurity remover conveying pipe are multiple, evenly distributed along the circumference of the guide cylinder, and located at the lower part of the inner cavity of the guide cylinder.