93results about How to "Microstructural stability" patented technology

The invention provides a Martensite stainless-steel composite steel plate and a production method thereof, belonging to the technical field of production of stainless steel composite plates. The method is realized through the following process routes: steel billet combination, heating, rolling control and heat treatment, wherein pack rolling of double billets is adopted, i.e., the upper and lower layers adopt A516Gr70 carbon steel, and two middle layers adopt 410S Martensite stainless steel; an isolation agent is added between two layers of the Martensite stainless steel; four edges of the combined billet is welded and sealed; and a vacuum pump is utilized for vacuum pumping. The invention has the following advantages: the Martensite stainless-steel composite steel plate has excellent strength-toughness and mechanical property, improves comprehensive utilization rate of materials, and further reduces cost at the same time.

The invention discloses a wollastonite enhanced polycarbonate material and a preparation method thereof. The wollastonite enhanced polycarbonate material comprises the following formula components in percentage by weight: 70-90% of polycarbonate resin, 5-20% of wollastonite, 3-6% of flexibilizer and 1-3% of wollastonite surface activator. The wollastonite enhanced polycarbonate material has good notch resistance performance and wear-resisting property, stable size, smooth and flat surface and comprehensive physical properties because all components within a proper range mutually act in the extrusion process. The preparation method of the wollastonite enhanced polycarbonate material is characterized in that extrusion and granulation are finished in one step by mixing reaction. The preparation method has the advantages of simple technology, high benefit and low cost, is convenient to operate and is suitable for industrial production.

The invention discloses orange full-fruit juice and a processing method thereof. The processing method mainly comprises the following steps: carrying out ozone composite high-pressure pulse electric field treatment on pre-treated oranges to remove pesticide residues of orange peel; carrying out coarse pulverizing, wet-process superfine pulverizing and colloid mill treatment on the oranges after the pesticide residues are removed to obtain full-fruit juice; carrying out compound enzyme moderate enzymatic hydrolysis treatment on the full-fruit juice; and carrying out homogenization, degassing and sterilizing on the juice after enzymolysis. The entire oranges can be totally utilized, and the nutrient substances of the oranges are retained to a great extent; stability of a juice system is realized by pectin of materials, and chemical additives are reduced; and by functional ingredients such as essential oil and flavone and ultra-high-pressure synergistic interaction, effective bacteria inhibition of the juice is realized, the qualities such as the original nutrient ingredients, color and taste in the materials are retained well, and the obtained orange full-fruit juice is rich in fragrance, bright in color, rich in functional ingredients and good in stability.

The present technology relates to a Ni—Mn—Ga magnetic shape memory (MSM) alloy including twin boundaries type 2, which are deviated approximately +/−2-4 degrees from (101) or equivalent crystallographic plane by rotation about [−101] or equivalent crystallographic direction. This technology relates also to an actuator, sensor and harvester including MSM element of this technology.

The invention provides a porous polyimide oil storage and retention structure and a preparation method and application thereof, and relates to the technical field of polyimide materials. The porous polyimide oil storage and retention structure comprises an oil storage layer and an oil control layer; the oil storage layer is made of monoether type polyimide, the porosity of the monoether type polyimide is 18-26%, and the aperture of the monoether type polyimide is 1.0-3.0 [mu] m; the oil control layer is made of pyromellitic polyimide, the porosity of the pyromellitic polyimide is 12-18%, and the pore diameter of the pyromellitic polyimide is 0.6-1.0 [mu] m. The pyromellitic polyimide is low in porosity and small in aperture so that the oil release rate of the composite material can be slowed down, and the oil retention rate can be increased; the monoether polyimide is high in porosity and large in aperture, so that the porosity and the oil storage rate of the composite material can be improved; the composite material provided by the invention has high oil storage rate and oil retention rate and good strength and wear resistance, and can meet the requirement of a high-speed and high-precision bearing on the service life.

The present invention uses a post-sinter-HIP anneal to increase the total transmittance of ceramic discharge vessels comprised of a submicron-grained alumina doped with MgO. After the anneal, the submicron-grained alumina discharge vessels have high values of both total and in-line transmittance, and are thus suitable for use in focused-beam, short-arc lamps. In particular, the total transmittance of the discharge vessel is increased to greater than 92% in the wavelength range from about 400 nm to about 700 nm.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a ternary lithium ion battery non-aqueous electrolyte and a lithium ion battery. The ternary lithiumion battery electrolyte comprises a non-aqueous organic solvent, an electrolyte lithium salt and an additive, the additive comprises an oxalic acid lithium phosphate additive with a structure shown ina formula (I), and can also comprise conventional additives such as vinylene carbonate (VC), 4-vinyl-1,3-dioxolan-2-one (VEC), 1, 3-propane sultone (PS), ethylene sulfate (DTD), tris (trimethylsilane) phosphate (TMSP) and the like. Under the combined action of the uniquely combined conventional additive and the oxalic acid lithium phosphate additive with the structure shown in the formula (I), the generation of cracks in positive electrode material particles in the circulation process can be inhibited, the dissolution of transition metal elements at high temperature can be reduced, the reduction reaction decomposition of a solvent on a negative electrode interface can be inhibited, the cycle performance, the high-temperature storage performance and the low-temperature performance of the ternary lithium ion battery are effectively improved.

The invention belongs to the fields of environment protection technologies and denitration catalysis, and specifically relates to a cerium oxide carrier based flat type high temperature sulfur-resistant SCR denitration catalyst and a preparation method thereof. Rod like nano cerium oxide is taken as the carrier, tungsten trioxide is taken as the active component, tin dioxide is taken as the catalyst additive, inorganic and organic structure additives are added to improve the mechanical properties and pore structure of the catalyst, and finally the flat type SCR denitration catalyst, which is suitable for a high temperature sulfur containing environment, is obtained by a rolling-coating technology. The provided catalyst has the advantages of excellent high temperature (450-700 DEG C) denitration activity, thermal activity, and sulfur resistant property, at the same time, the production technology is simple, the problem that a conventional SCR denitration catalyst is inactivated in hightemperature flue gas during the sintering process is solved, and the catalyst has a wide application prospect in industry.

The invention provides an aluminothermic welding post-weld heat treatment process for a bainite steel rail. The post-weld heat treatment process comprises the following steps of: step (1). cooling a joint obtained by aluminothermic welding to a room temperature, heating the joint for 5-10 minutes, and carrying out heat preservation for 5-10 minutes; then carrying out slow cooling treatment on the joint obtained through heat preservation treatment at a cooling speed of 0.2-0.8 DEG C/s until the temperature of the joint reaches 100 DEG C or below; and step (2). heating the joint treated in the step (1), then carrying out heat preservation, and naturally cooling to a room temperature.

The invention relates to the technical field of nano materials and electrochemistry and relates to an electrode material with ultrafine MoO2 nano-particles uniformly bridged inside a flaky carbon matrix and a preparation method of the electrode material. The material can be used as a lithium ion battery negative electrode active material with high capacity and long cycle life; a three-dimensionalflower-shaped structure formed by stacking and interweaving flaky carbon matrix substructures, the thickness of the sheet layer of the carbon matrix is 10-20 nm; the diameter of a single flower-shapedstructure formed by the carbon substrate is 2-6 microns; and the diameter of MoO2 nano-particles is 1-3 nm. The nanometer material can be used as a lithium ion battery negative electrode material. The material disclosed by the invention has the characteristics of simple process, mild reaction conditions and excellent electrochemical performance.

The invention discloses a magnetic nanorod demulsifier, a preparation method thereof and a method for treating nano-emulsion by using the magnetic nanorod demulsifier, and belongs to the technical field of demulsifiers. The preparation method of the demulsifier comprises the steps that FeCl3. 6H2O and FeSO4. 7H2O are dissolved in deionized water under the N2 introduction condition to obtain a ferric salt solution, the molar ratio of Fe < 3 + > to Fe < 2 + > is 2.15, polyethyleneimine is taken and dissolved in distilled water to obtain a polyethyleneimine solution, the molecular weight of polyethyleneimine is 10000, and the molar ratio of N to Fe is not lower than 1.47; the polyethyleneimine solution is added into the ferric salt solution dropwise while continuously introducing N2 and stirring, concentrated ammonia water is dropwise added at the water bath temperature of 50-80 DEG C, stirring is carried out to react for 1-4 hours, solid particles in the reaction solution are separated by using a magnet, the solid particles are cleaned with deionized water, re-dispersing the solid particles into the deionized water, a glutaraldehyde solution is added, and stirring, uniformly mixing and magnetic field separation are carried out to obtain the demulsifier. The demulsifier prepared by the preparation method disclosed by the invention can be used for efficiently demulsifying the nano-emulsion of which the mass ratio of the surfactant to the oil is 0-0.909.

The invention discloses a preparation method and application of a bifunctional electrocatalyst, and belongs to the technical field of electrocatalytic materials. According to the technical scheme, the preparation method is characterized in that an MOF precursor is introduced into a high-conductivity one-dimensional carrier shell layer in situ and then is stably compounded with a metal current collector, then electrochemical in-situ activation is carried out, and finally the OER/HER bifunctional electrocatalyst is prepared. The nano bifunctional electrocatalyst prepared by the invention has a multi-stage assembly structure and a multi-dimensional material composite structure characteristic, is beneficial to improving the electrocatalytic activity of the bifunctional electrocatalyst OER/HER and prolonging the service life of the bifunctional electrocatalyst OER/HER, and has a relatively good application prospect in catalysis of water splitting.

The invention discloses a method and device for electromagnetically assisted laser printing of NiCrAlY-Al2O3 ceramic. The device comprises a working cylinder, two first excitation coils, a laser headand a galvanometer, wherein the two first excitation coils are fixedly installed at two sides of a forming area of the working cylinder separately; a magnetic induction line formed between the two first excitation coils covers the whole forming area of the working cylinder; the laser head and the galvanometer are both installed above the working cylinder; and laser emitted by the laser head is reflected by the galvanometer and then emitted into the forming area of the working cylinder. Additive printing is carried out in a layer-by-layer powder laying and laser printing manner, and convectionof a metal solution in a molten pool is suppressed through the excitation coils, so that the mechanical performance of the functionally graded material is improved.

The invention discloses a non-fullerene receptor with synergistic assembly performance as well as a preparation method and application thereof. The non-fullerene receptor comprises oligomeric ethylene glycol side chains which are substituted at different positions and have different lengths. The non-fullerene receptor is used as a guest component, so that the active layer (main body) component is dissolved in various non-halogen solvents, the compatibility and phase separating size and morphology among the active layer components are regulated and controlled, and the dependence of the active layer on low-boiling-point and high-toxicity halogen-containing solvents is reduced. In addition, the object non-fullerene receptor can regulate and control the crystallization kinetics of the subject in a high-boiling-point solvent through a self-assembled side chain, the crystallization time of receptor molecules is prolonged, the overall crystallinity of the active layer is improved, and the dependence of active layer processing on a post-treatment process is reduced. The three advantages are combined, the photoelectric conversion efficiency of the organic solar cell processed by the high-boiling-point and green solvent is greatly improved, an annealing process is not needed, the device preparation process is simplified, and the device preparation energy consumption is reduced.

The invention relates to a preparation method of a high-temperature-resistant and wear-resistant brake pad, belonging to the technical field of brake pad preparation. In accordance with that invention, titanium pow, Carbon powder, aluminum powder and iron powder are mixed, A metal composite product is prepare by adding urea and absolute ethanol, oxidizing graphite powder, A modified mixture is prepared by reduction and modification, A metal composite product of that mix slurry, A high-temperature-resistant and wear-resistant brake pad is obtain by mixing that modify mixture and pressing the mixture into a mold, Volatilization of urea particles, A metal mixture is microscopically porou, in the pores of the metal mixture filled with the modified nano-graphene, making the microstructure of the metal mixture stronger, The impact resistance and mechanical strength of the brake pads are effectively improved, and the high temperature resistance and strength of the metal mixture can be greatlyimproved by the introduction of titanium, and the high temperature resistance of the metal mixture can be further improved by the modified graphene, and the carboxyl and ester groups in tung oil canimprove the mechanical strength and wear resistance of the brake pads, so that the brake pads have a broad application prospect.