Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

96results about How to "No investment required" patented technology

Variable water ratio control method of secondary cooling of billet caster

The invention discloses a variable water ratio control method of the secondary cooling of a billet caster which can reduce the inner crack rate of casting blanks. The control method can realize that the water flow rate delta and the total amount of water Q increase by stages with the increasing of the casting speed V of casting blanks, namely when the casting speed V of casting blanks is 0-2m/min,the water flow rate delta is 1.35-1.39L/kg, the functional relationship between the secondary cooling total amount of water Q and the casting speed V of casting blanks is Q = 13.8-14.3V; when the casting speed V of casting blanks is 2-2.4m/min, the water flow rate delta is 1.58-1.64L/kg, the functional relationship between the secondary cooling total amount of water Q and the casting speed V of casting blanks is Q = 16.2-16.8V; when the casting speed V of casting blanks is 2.4-2.8m/min, the water flow rate delta is 1.67-1.71L/kg, the functional relationship between the secondary cooling totalamount of water Q and the casting speed V of casting blanks is Q = 17.1-17.5V; when the casting speed V of casting blanks is 2.8-3.0m/min, the water flow rate delta is 1.73-1.76L/kg, the functional relationship between the secondary cooling total amount of water Q and the casting speed V of casting blanks is Q = 17.7-18.1V; and when the casting speed V of casting blanks is 3.0-3.6m/min, the waterflow rate delta is 1.8-1.86L/kg, the functional relationship between the secondary cooling total amount of water Q and the casting speed V of casting blanks is Q = 18.5-19.1V.
Owner:XINJIANG BAYI IRON & STEEL

Flexible electromagnetic shielding composite material, preparation method thereof and application

InactiveCN107163333AGood electromagnetic shielding performanceReduce manufacturing costMagnetic/electric field screeningScrapMicrometer
The invention provides a flexible electromagnetic shielding composite material and a preparation method thereof. The method includes the steps: (1) preparing materials in weight percentage: 95-99.9% of scrap rubber powder and 0.1-5% of carbon nano-tubes; (2) drying the carbon nano-tubes, and enabling the moisture of the carbon nano-tubes to be lower than 0.01%; (3) mechanically mixing the dried carbon nano-tubes acquired in the step (2) and the scrap rubber powder at the high temperature at the speed of 24000rpm to obtain composite particles; (4) performing preheating for 5 minutes on the composite particles acquired in the step (3) at the temperature ranging from 150 DEG C to 180 DEG C, performing hot pressing for 10 minutes under the pressure ranging from 10MPa to 50MPa, performing cold pressing to the room temperature under the pressure of 10MPa to obtain flake-like target products. The average diameter of the carbon nano-tubes is 9.5 nanometers, and the average length of the carbon nano-tubes is 1.5 micrometers. The invention further provides an application of the flexible electromagnetic shielding composite material to the field of flexible electron devices. The preparation method is easy to implement, the obtained material has excellent EMI SE (electromagnetic interference shielding effect) and good market application prospect, and scrap rubber can be effectively utilized.
Owner:四川省成都市树德中学

Method for controlling deviation of intermediate billet of coil box

ActiveCN103056168AGuaranteed stable rolling effect in batchesSolve the failure of intermediate volume windingRoll mill control devicesMetal rolling arrangementsEngineeringContinuous rolling
The invention discloses a method for controlling deviation of an intermediate billet of a coil box, and belongs to the technical field of hot-rolled steel. The method includes sequentially feeding the intermediate billet into a bending roll unit via an inlet-side guide plate and an inlet roll unit; bending the intermediate billet to form a strip billet; coiling the strip billet by a forming roll and a first coil carrying roll of a coiling station sequentially to form a strip coil; uncoiling the strip coil by an uncoiling station, and then shifting the strip coil; and flattening the strip coil by a pinch straightening roll, and then feeding the strip coil into a finishing mill group via a front-side guide plate of a flying shear to be rolled. The method has the advantages that problems of coiling failure of an intermediate coil due to deviation of an intermediate billet and uncoiling failure due to a poor coil pattern are effectively solved; and investment is omitted, the method is simple, and is high in applicability and obvious in control effect, a stable batch rolling effect of industrial production is guaranteed, and an effect for obviously improving stable production of the hot continuous rolling coil box is realized.
Owner:BEIJING SHOUGANG CO LTD

A preparation method for an environmentally-friendly anti-yellowing curing agent with a good adhesive force

ActiveCN103232586AGood resistance to yellowing and weatheringStrong adhesionNon-macromolecular adhesive additivesCoatingsAlcoholPtru catalyst
The present invention relates to a preparation method for an environmentally-friendly anti-yellowing curing agent with a good adhesive force. The preparation method comprises the following steps of: step 1, adding TDI into a solvent for dissolving, and adding a low molecular weight alcohol containing 1-3 hydroxyl groups for a prepolymerization reaction, wherein the low molecular weight alcohol accounts for 20%-35% of the total amount of the alcohol; step 2, after the prepolymerization reaction, adding HDI and the remaining low molecular weight alcohol containing 1-3 hydroxyl groups, and simultaneously adding a silanol for the prepolymerization reaction, wherein the molar ratio of TDI : HDI = 0. 5-1:1, and the molar ratio of the salinol: HDI=0.05-0.2:1; and step 3, after the prepolymerization reaction, adding a trimerization catalyst, continuously detecting contents of NCO (NCO%) and free TDI (TDI%), and when the content of NCO (NCO%) reaches 8.5% and the content of a free monomer is less than 0.5%, adding a polymerization inhibitor to terminate the reaction, and cooling for material unloading. According to the method of the present invention, a trimerization method is used for reducing the content of the free monomer, the process flow is simple, no large investment in equipment is needed, the production cost is low, the product performance fully fulfills the application requirements in the paint field, and is conductive to environmental protection and health; and when the curing agent is used in coatings, the paint film has good adhesive force with the substrate, and the recoating adhesive force is more excellent, and anti-yellowing and anti-weathering performance of the paint film is better.
Owner:SKSHU PAINT

Utilization device for spiral internal air energy

The invention relates to a utilization device for spiral internal air energy, which belongs to the field of renewable energy source and machinery manufacture. The situation that internal air energy is divided into forbidden zones by thermodynamics is a blank by application. Multistage vortex superchargers are respectively connected in series between the compressor of the device and a high-pressure turbine as well as among a high-pressure turbine, a middle-pressure turbine and a low-pressure turbine; the air inlet channel and the air outlet pipeline of each vortex supercharger are respectively provided with a wedge-shaped body regulation device; a high-pressure turbine shaft is in driving connection with a compressor shaft by a ratchet type overrunning clutch; the middle-pressure turbine and the low-pressure turbine shaft are in differential connection by a sleeve type differential coupler and output power by one shaft; under the eddy current field effect, potential flow superposition and the Rafael spray pipe clinical effect action, the vortex supercharger and a vortex exhaust device utilize the internal energy of medium to dynamically compress to lift medium pressure; the conversion of the internal energy to dynamic energy, the dynamic energy to the potential energy and the potential energy to the mechanical energy of the internal medium parts including air is realized to simultaneously produce cold quantity and fresh water. The utilization device is especially suitable for the occasions with refrigeration and fresh water requirement while distributed power generation.
Owner:杜臣
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products