110results about How to "Easy shape control" patented technology

The invention relates to the technical field of self repair materials and provides an epoxy microcapsule with polyurea as a wall material. The core material of the microcapsule comprises liquid epoxy resin, the wall material of the microcapsule is crosslinked polyurea prepared by carrying out an interface reaction on polyisocyanate and water, and the polyisocyanate comprises polyisocyanate containing three elements or more than three elements. The invention also provides a preparation method of the epoxy microcapsule with polyurea as the wall material. The preparation method of the epoxy microcapsule with polyurea as the wall material comprises the following steps of: dispersing polyisocyanate and liquid epoxy resin into water containing a surface active agent to obtain a mixed solution, stirring the mixed solution for 0.5-5 hours at the temperature of 25-90 DEG C, filtering, washing, and drying, so that the epoxy microcapsule with polyurea as the wall material is obtained. The preparation method of the epoxy microcapsule with polyurea as the wall material is simple and practicable and is applicable to industrial production.

The invention relates to a complete roll forming configuring method for a wide flat steel hot rolling finish mill set. According to the characteristics that an upstream machine frame controls the convexity and a downstream machine frame controls the flatness in the seven-machine frame and four-roll hot rolling wide flat steel finish mill, a finish rolling inlet machine frame F1 adopts negative convexity working roll forming, a machine frame F2, a machine frame F3 and a machine frame F4 adopt cubic CVC working roll forming, and a machine frame F5, a machine frame F6, and a machine frame F7 adopt negative convexity working roll forming of sine curves and are matched with periodic roll shifting of the working roll with long stroke. The supporting rolls of all the machine frames of the finish mill set adopt positive convexity roll forming of sextic polynomes. The method improves the transverse rigidity of the machine frames of the finish mill, improves regulation and control efficiency of roll bending force of the working roll, and reduces flexibility deformation of the roll. The roll forming configuring method for the finish mill set improves stability of the wide flat steel rolling, reduces the deflection amount of the wide flat steel, prolongs the planned length for rolling and greatly improves profile shape control precision of the wide flat steel.

A method for producing an optical member from a nanocomposite material which includes a thermoplastic resin containing inorganic fine particles is provided. The method includes:

• • a first step of preparing in a solution the thermoplastic resin containing the inorganic fine particles;
  • a second step of drying and solidifying the solution containing the prepared thermoplastic resin to produce the nanocomposite material having a specific surface area (surface area/volume) of 15 mm⁻¹ or more; and
  • a third step of heat-compressing the produced nanocomposite material to form the optical member in a desired shape.

The invention discloses a preparation method of a surface covered nickel lithium manganate positive electrode material. The preparation method comprises the following steps: a, preparing a reaction kettle bottom solution; b, preparing a coprecipitate; c, preparing a precursor; and d, performing a microwave reaction. The preparation method of the surface covered nickel lithium manganate positive electrode material provided by the invention has the advantages that as a microwave sensitized material, zirconia, is added in a precursor preparation process, a reaction material is urged to effectively absorb microwave to rapidly warm to the reaction temperature 700-950 DEG C, and the microwave firing time of the product is remarkably shortened to 1-10 minutes; when the nickel lithium manganate material is burnt at high temperature, the zirconia and a Li source can react at a nickel lithium manganate surface to generate a lithium ion conductor Li2ZrO3 coating layer, and thus the cycle property and the rate property of the product are remarkably improved.

The invention relates to a heat treatment method for high-strength wear-resistant steel plates, which comprises the following steps in turn: I, controlling an original plate shape, wherein a hot-rolled steel plate is subjected to a hot rolling process and is subjected to 5-7-pass straightening by a straightener, so that the plate shape waviness of the steel plate is 2-4mm/2m; II, performing surface treatment, namely performing shot blasting on the upper and lower surfaces of the steel plate by using a shot blasting machine; II, quenching, namely heating the steel plate in a roller hearth normalizing furnace together with the furnace to a critical point Ac3, namely 10-50DEG C, keeping the temperature at a rate of 1.5-2.0min/mm according to the thickness of the steel plate, discharging the steel plate at a rate of 0.10-0.50m/s into a quenching machine, and quenching to room temperature; and IV, tempering, namely performing low temperature tempering treatment on the roller hearth normalizing furnace at the temperature of between 350 and 380DEG C, and controlling the temperature keeping time at a rate of 3min/mm according to the thickness. In the heat treatment method for the high-strength wear-resistant steel plates, the roller hearth normalizing furnace and a common quenching machine are adopted, and the waviness of finished products is 3-6mm/2m.

The invention provides an online calculating method for a wrap angle of a cold-rolled strip steel plate shape roll. The method comprises the following steps: 1) after beginning winding, measuring real-time linear velocity of an outlet strip steel online by using a laser velocimeter, and calculating a real-time passing length of the strip steel; 2) after the plate shape roll is put into online detection, figuring out an initial diameter of a steel coil by using an equal-area method; 3) periodically reading measured values of the laser velocimeter and a pulse generator, and figuring out a real-time steel coil diameter; 4) checking validity of the real-time steel coil diameter so as to obtain a steel coil diameter output value; and 5) calculating a real-time wrap angle value according to an actual steel coil winding method and the steel coil diameter output value. According to the invention, extended functions of the exiting hardware equipment of a cold rolled plate shape control system are sufficiently performed; a high-accuracy and real-time continuous strip steel winding diameter is indirectly figured out by effectively utilizing a direct physical relation between the linear velocity of the strip steel and rotation speed of a winder; moreover, an online checking link of a strip steel winding diameter calculated value is provided, so that the reasonability of the calculated value is guaranteed.

A method for cleaning a substrate which is or comprises a textile, the method comprising agitating the substrate in the presence of a cleaning composition comprising: i. cleaning particles comprising a thermoplastic polyamide and a particulate inorganic filler having a density of at least 2.5 g/cm³, said cleaning particles having an average particle size of from 1 to 100 mm, wherein the cleaning particles have an average density of at least 1.65 g/cm³ and/or the particulate inorganic filler has a D₅₀ particle size of at least 10 microns and/or a D₉₀ particle size of at least 40 microns; and ii. a liquid medium.

The invention discloses an air leakage detecting method for a reaction cavity and a control method for a vacuum reactor, which can realize accurate air leakage condition detection of the reaction cavity of the vacuum reactor in real time while the capacity is unaffected by detection steps. The air leakage detecting method includes steps of processing a substrate to be processed in the reaction cavity, removing the substrate to be processed and proceeding to a cleaning procedure, igniting plasmas by feeding oxygen in the cleaning procedure, and analyzing whether a spectrum generated by the oxygen plasmas contains a frequency spectrum representing nitrogen or not by the aid of an optical observation device. The reaction cavity leaks if the intensity of the spectrum representing nitrogen is larger than the set value, and the vacuum reactor needs to be stopped operating. A next processing procedure can be performed if the detection shows that the spectrum representing nitrogen is not larger than the set value. Air leakage can be detected in real time by the air leakage detecting method by the aid of existing processing procedures and equipment, and thereby capacity is guaranteed.

The invention provides a wet etching method in the multilayer metal patterning process. According to the method, etching is performed on Ag and Ni by utilizing the mixed liquor of glacial acetic acid (CH3COOH), nitric acid (HNO3) and water, etching is performed on Ti by utilizing diluted hydrofluoric acid, etching is performed on Al by utilizing an Al etching solution, and finally, etching is performed on TiN and Ti by utilizing an APM solution. According to the invention, the photoetching process needs only once, so the cost is greatly reduced, and the advantage of good etching window morphology control can be realized in all wet etching steps, so the quality of the patterning process can be improved, and Ag, Ni, Al as well as TiN and Ti are etched in one step separately, so the flow of the wet etching process can be simplified, and the efficiency of the process can be improved.

The invention provides a method of designing shaping tools for metal containers (such as metal bottles) to minimize the formation of visible transition lines or ripples conventionally produced in such procedures as die necking and outward flaring. The method involves carefully measuring differences between an actual shape produced and a design shape resulting from an original set of shaping tools. The tools are then refined in design to take into account metal spring back and the effect of one shaping stage on the results of previous stages. The redesign goes through several iterations to ensure that each change produces an improvement of the formed container. In this way, the formation of transition lines can be minimized because the actual shape of the container more closely resembles the smooth design shape. Dies designed in this way are then used for commercial shaping operations.

The invention belongs to the technical field of material molding, and discloses a preparation method of a porous silicon nitride part with a complicated shape. The method combines a metal selective laser melting process with a silicon nitride reaction sintering process, and provides a novel idea for preparing the porous silicon nitride part with a large size and complicated shape; and the method specifically comprises the following steps: (1) providing metal silicon powder and an oxide sintering auxiliary agent according to predetermined mass parts to be used as raw materials; (2) performing micro-area partial sintering on the raw materials by adopting the selective laser melting process to preform a porous silicon green body; and (3) performing reaction sintering on the porous silicon green body, and performing nitriding to obtain the porous silicon nitride part with the complicated shape. According to the preparation method provided by the invention, shape and performance control tothe porous silicon nitride part is easy to realize, the production efficiency can be improved, the flexibility is higher, and a polymer binder is not needed.

The invention discloses a method for producing an urchin-like nano TixSn1-xO2/graphene three-dimensional composite material and an application of the composite material on a negative electrode of a lithium ion battery. The urchin-like nano TixSn1-xO2/graphene three-dimensional composite material is produced by a one-step hydro-thermal synthesis technology through self-assembly by using a coordination principle and a molecule self-assembly method. The method comprises the following steps: 1) preparing oxidized graphene, 2) preparing a graphite oxide sol with surface having negative electricity; and 3) producing the urchin-like nano TixSn1-xO2/graphene three-dimensional composite material through reduction. The reaction process is carried out in an aqueous solution, other reagents are not required, and the method has the advantages of simple process, low cost, energy saving, environmental protection, and easy industrial batch production. As the negative electrode material of lithium ion battery, the three-dimensional composite structure of the material is in favor of diffusion of an electrolyte in the composite material as well as transmission of electron and ion in the material, and performances such as charge and discharge capacity, cycle life and multiplying power of the composite material can be effectively increased.

A composition for forming a photosensitive resist underlayer film and a method for forming a resist pattern. The composition for forming a photosensitive resist underlayer film includes a polymer having a structural unit of Formula (1), a compound having at least two vinyl ether groups, a photo-acid generator; and a solvent:

where R¹ is a hydrogen atom or a methyl group, R² is a C_1-4 alkyl group, and i is an integer of 0 to 4.

A hair styling device or curler used to shape hair by capturing a tress of hair inside a continuous channel of the curler created by a wrapping element spirally wrapped around a central core element. The continuous channel captures the hair so it is self-holding and does not require additional clips or fixation elements to hold the curler in place. The curler may contain two elements or one element. The curler may be wrapped in either direction to accommodate styling both sides of the head and may be modularly connected to another curler to customize the length of the curler. The curler may be heated by a variety of means or may be left at room temperature for air drying. The curler may contain a blow dryer element, sensors or other smart technology to start or stop any function of the styling system.

The invention discloses a manufacturing method for high-magnetic induction low-cost 250 MPa cold-rolled magnetic pole steel. The manufacturing method comprises the steps as follows: heating a plate blank to be 1200-1260 DEG C and insulating; hotly rolling, wherein the final rolling temperature is 850-900 DEG C, the coiling temperature is 550-630 DEG C and a jet water cooling way is adopted as a cooling way; cooling to be 60-80 DEG C for acid washing, wherein an air cooling way is adopted as the cooling way; coldly rolling, wherein the cold rolling reduction rate is 50-75%; continuously annealing, wherein the temperature of an uniform heating section is 720-780 DEG C and the uniform heating time is 60-200 s; and flattening by a flattening elongation rate of 0.8-1.4% to prepare the 250 MPa cold-rolled magnetic pole steel. The produced magnetic pole steel has lower yield strength ReL of more than 250 MPa and magnetic induction strength B50 of more than 1.70 T, and is suitable for manufacturing a magnetic pole iron core of a rotor body of a large water-wheel generator.

The invention discloses a kapok fiber/manganese dioxide structure multi-layer self-drive tubular micro-nano motor and a preparing method thereof. With manganese dioxide adopted as the raw material andkapok fiber adopted as the template, by soaking the kapok fiber in a manganese dioxide solution, the manganese dioxide and the kapok fiber are made to have a redox reaction to generate manganese dioxide nanoparticles to be loaded on the kapok fiber, and therefore the multi-layer self-drive tubular micro-nano motor is prepared, and the motor is good in biological degradability, has carrying, conveying and releasing functions and has wide application prospects in the fields of efficient medicine loading, target cancer cell conveying, medicine near infrared light responsiveness controllable releasing, environmental control and the like.

The invention discloses a recycling and re-preparation method of silicon-steel level magnesium oxide. The method comprises the following steps: by taking magnesium oxide, a residual waste coating material after silicon steel production, as a raw material, carrying out purification treatment operations of calcination, acidolysis, iron and silicon removal, acidolysis with hydrochloric acid, and the like to obtain a high-purity magnesium chloride solution; by taking the high-purity magnesium chloride solution as a reaction solution, adding ammonium hydrogen carbonate and ammonia water as two precipitants, introducing an organic surfactant at the same time, and carrying out preparation at 40-80 DEG C to obtain a precursor, namely basic magnesium carbonate Mg2(OH)2CO3; and finally, carrying out washing, suction filtration, drying, crushing, and air blowing method calcination to prepare silicon-steel level magnesium oxide. According to the method disclosed by the invention, the wastes which are generated during production of silicon steel and contain a large amount of magnesium oxide are recycled, and high-quality silicon-steel level magnesium oxide with a high specific area and uniform particle size distribution can be prepared by virtue of the processes of purification, two-phase precipitant method precursor preparation, air blowing method calcination and the like.

The invention provides a method for preparing flame retardant grade magnesium hydroxide. The method comprises the following steps: calcining the oriented silicon steel in a muffle furnace by use of magnesium oxide wastes, next, cooling, adding the calcined silicon steel magnesium oxide to a dissolving tank by use of the magnesium oxide wastes, dissolving by use of an acid, adding the dissolved magnesium oxide wastes to a settling tank for settling, removing the undissolved substances, guiding the solution into a reaction tank, adding ammonia water, and continuously introducing compressed air so that Fe<2+> can be transformed into Fe<3+>, controlling the pH so that the Fe<3+> is completely settled and Mg<2+> is not settled, removing Fe(OH)3 precipitate, next, adding ammonia water, ethanol and a surfactant to the solution obtained after settlement in the reaction tank, controlling the pH so that the Mg<2+> can be completely settled, and drying Mg(OH)2 to obtain the retardant grade magnesium hydroxide. The method is used for solving the problems of the technical flow of recycling the magnesium oxide waste for the silicon steel; and the waste of resources is avoided.

The invention provides a preparation method of a carbon-coated iron oxide nanotube and a product and application of the nanotube. The preparation method comprises the following steps: preparing a solution from a soluble iron salt, a sulfate, ammonium dihydrogen phosphate and sucrose according to a certain concentration, and magnetically stirring the solution for a certain time; and transferring the solution into a stainless steel reaction still, regulating temperature and pressure, and performing reacting for a certain time by a supercritical method to obtain the carbon-coated iron oxide nanotube. The preparation method is simple, the technological process of a carbon coating process is shortened effectively, meanwhile, the reaction time is short, the temperature is low, and the course ofthe reaction is easy to control. The carbon-coated iron oxide nanotube is prepared by the method efficiently and rapidly, has a unique core-shell structure and peculiar electrical, magnetic, optical and mechanical properties, and thus is expected to be widely applied to the fields of catalysts, battery materials, electric wave shielding materials and the like.