301results about How to "Improve performance uniformity" patented technology

The object of the present invention is to provide a method and apparatus for manufacturing an EL layer of uniform thickness, causing effective light emission of pixel openings and manufacturing an organic EL display showing sufficient brightness and excellent in practicability, by an ink jet method. Further object is to provide a method and apparatus for manufacturing a color filter excellent in practicability by an ink jet method, in which a dye layer with uniform thickness is formed and optical coloring of uniform tone is conducted at pixel openings. In order to achieve the above object, the present invention is a method for manufacturing an organic EL display by an ink jet method, wherein an uniform organic EL layer is formed by sequentially continuously carrying out: a process of discharge-placing at least an organic EL material in the form of solution on a substrate; and a process of drying the organic EL material in the form of ink placed on the substrate by heating, and the organic EL material is dried by heating over thereof. Further, the placing of the organic EL material on the substrate and drying by heating are sequentially continuously carried out by relatively moving the substrate to a nozzle which discharges the organic EL material and to a device which heats the organic EL material over thereof.

The invention relates to bar material forging machining method of titanium alloy, particularly to a forging machining method of large-sized bar materials of TC4 (Ti-6Al-4V) titanium alloy. The forging machining method is characterized by comprising the following steps of step 1, performing cogging forging, step 2, performing intermediate forging above a phase transformation point, step 3, performing intermediate forging below the phase transformation point, step 4 and step 5, performing finished product forging and obtaining the phi 200 to 300 mm and 2000 to 3000 mm length of large-sized bar materials of the TC4 titanium alloy finally. Compared with the prior art, a large-sized ingot casting and a large-tonnage forging device are not required and the industrialized production can be achieved through an ordinary industrial 3 ton ingot and a small-tonnage forging press and the equipment investment is small, only a 3 tons of electric arc furnace and a 3000 tons of forming oil press which is matched with the electric arc furnace need to be invested in the phi 600 of 3 ton ingot, the small-tonnage forging press such as a 1600 tons of forging press needs to be invested in the forging process, and accordingly the equipment investment is significantly reduced.

The present invention provides a three-section cooling process by laminar flow for hot-rolled steel strip. Said process adopts the computer laminar flow cooling control, and is characterized by that the steel strip can be divided into three sections for cooling, first section is head portion section whose length is 30 m, second section is intermediate section of the steel strip, and third section is the tail portion section whose length is 20 m, and the cooling temperatures of said three sections are respectively controlled in that its intermediate section temp. is equal to the objective coiling temp., its head portion section temp. is 20-50 deg.C higher than that of objective coiling section, and its tail portion section temp. is 20-40 deg.C higher than objective coiling temp. Said invention can improve the performance uniformity of steel strip.

The invention relates to steel for bottle caps and a preparation method thereof, especially to steel for hard tinplate bottle caps and a production method thereof. The invention mainly solves the technical problems of unstable rolling, high hole ratio for pickling-rolling and poor surface quality of each process during pickling-rolling production of present steel for bottle caps. The technical scheme provided by the invention is as follows: the steel for hard tinplate bottle caps comprises the following chemical components of: by weight, 0.045-0.088% of C, Si being less than or equal to 0.1%, 0.30-0.50% of Mn, P being less than or equal to 0.020%, S being less than or equal to 0.020%, 0.010-0.060% of Alt, N being less than or equal to 0.0060%, and the balance Fe and some unavoidable impurity elements. The production method comprises four steps of steeling-making, hot rolling, pickling-rolling and continuous annealing, and is characterized in that hot rolling is controlled in the way: tapping temperature is 1200+ / -30 DEG C, finishing temperature is 880+ / -30 DEG C and coiling temperature is 580+ / -30 DEG C; cooling mode is forepart cooling; pickling-rolling and continuous annealing are controlled in the way: RTF section temperature is 610+ / -15 DEG C and SF section temperature is 610+ / -15 DEG C. Hardness of the obtained tinplate finished product is HR30T63+ / -3. The production method provided by the invention is mainly used for production of steel for bottle caps.

A high performance cold plate cooling device including multiple, relatively thin plates, each having patterns formed thereon that, as arranged within the device, cause turbulence in a fluid passing within the cooling device. Adjacent plates within the cooling device are arranged such that fluid channels within their patterns are arranged crosswise. One or more barriers extending at least a portion of the length of the device separate the crosswise channels into two or more flow sections and increase uniformity of thermal performance over the active plate area. Manufacturing of the device includes stacking the plates in an alternating fashion such that the channels within the pattern of each plate are crosswise with respect to the channels in the pattern of an adjacent plate and adjacent barrier walls abut.

The invention discloses a production method for improving strip coil through-reel mechanical property uniformity. The invention belongs to the technical field of steel rolling. The method comprises the steps of slab reheating, rough cooling, fine rolling, laminar flow cooling, and reeling, such that hot-rolled coil is obtained. The hot-rolled coil is subjected to acid pickling, cold rolling, annealing, and flattening, and a finished product is reeled. According to the reeling process, a U-shape reeling process is used for controlling the reeling temperature. The reeling temperature is that: a temperature of 710-750 DEG C is applied at 30m at the head of the steel coil and 40m at the rear of the steel coil, and a temperature of 660-700 DEG C is applied at the middle part of the steel coil. According to the invention, steel strip hot rolling process parameters are optimized, such that high-quality steel strip with uniform size and performance can be obtained, and user application requirement is satisfied. Also, accidents such as drawing breakage and stamping cracking in subsequent production processes are prevented.

The invention discloses a production method of a 150-400mm thick steel plate for plastic moulds and belongs to the field of metal materials. Continuous cast slab is used as raw material to produce the 150-400mm thick steel plate by the production method and comprises, by weight percent, 0.20-0.40% of C, 0.20-0.50% of Si, 1.00-1.60% of Mn, not more than 0.008% of S and P, 0.10-0.50% of Mo, 1.40-2.0% of Cr, 0.01-0.04% of V, and not more than 0.20% of other alloy elements (Nb, Ti and Ni). The high thickness slab can be produced by full-vacuum electron beam welding or by combined process of gas shielded welding, submerged-arc welding and vacuum electron beam welding and is then subjected to heating, rolling, slow cooling and heat treatment procedures, ultrasonic testing qualified rate of the produced steel plate for plastic moulds reaches more than 98%, the hardness is even, and the steel plate has excellent machinability, wear resistance and polishability and is suitable for production of various plastic moulds.

The invention discloses an age hardenable aluminum alloy integral panel one-step forming method based on an autoclave. The method includes the steps: firstly, fixing an aluminum alloy plate blank on a forming die, and placing the aluminum alloy plate blank into the autoclave after the aluminum alloy plate blank and the forming die are sealed in a vacuum manner; secondly, providing temperature needed by aluminum alloy aging and pressure needed by component laminating inside the autoclave, and enabling heavy-curvature portion materials to reach yield limit and enter a creep aging stage by keeping a laminating state after plastic deformation. Internal stress distribution is adjusted by local plastic deformation, so that the problem of non-uniform performance caused by internal stress difference in the creep aging process can be eliminated, production cycle and rebound are decreased by combining plastic deformation with creep deformation, and the height of the die can be decreased. The process method can be implemented in the autoclave with enough capacity, the highest working pressure is not lower than 10Bar, and the using temperature can range from 100 DEG C to 200 DEG C. The method is simple and convenient to operate, can be implemented only by one set of female die and has an actual industrial production application value, a tool is simple, and cost is saved.

The invention discloses a 5182 aluminum alloy. The aluminum alloy is composed of Si, Fe, Cu, Mn, Mg, Cr, Zn, Ti, and remaining Al and some inevitable impurities. A preparing technology of a tank cover material strip through the 5182 aluminum alloy comprises the steps of firstly, taking of the 5182 aluminum alloy; secondly, hot rolling, cooling and obtaining a blank for cold rolling; thirdly, primary cold rolling, and obtaining a cold-rolled intermediate product, wherein the total deformation amount ranges from 66% to 78%; fourthly, air cushion furnace annealing; fifthly, secondary cold rolling, wherein the total deformation amount ranges from 71% to 76%; sixthly, stretch bending and correcting. According to the 5182 aluminum alloy and the preparing technology of the tank cover material strip through the 5182 aluminum alloy, through high alloying, the alloy strength is improved, meanwhile, the content of Fe and Si is reasonably controlled, and bank mark generation is restrained; continuous air cushion furnace annealing is adopted, through high-temperature short-time annealing, the grains are adjusted and controlled, uniformity of the strip performance is improved, and meanwhile the strip surface quality is ensured.

The invention relates to a 1000MPa grade high-tenacity high-property-uniformity super-thick steel plate easy to weld. With Fe as the basic element, the steel plate comprises the chemical components of, by mass, 0.12-0.15% of C, 0.15-0.35% of Si, 0.95-1.20% of Mn, no more than 0.010% of P, no more than 0.002% of S, 0.5-0.8% of Cr, 0.4-0.6% of Mo, 2.4-3.0% of Ni, 0.2-0.4% of Cu, 0.06-0.09% of Al, 0.03-0.06% of V, no more than 0.04% of Nb, no more than 0.006% of N, 0.001-0.002% of B and impurity elements. When the carbon equivalent is no more than 0.75%, the thickness of the steel plate reaches 180 mm. According to the 1000MPa grade high-tenacity high-property-uniformity super-thick steel plate easy to weld, in order to meet requirements of large engineering equipment, a high-quality and high-purity continuous casting sheet billet produced by means of the optimized chemical components, high-purity molten steel and an optimized continuous casting process is adopted as a billet material, and the super-thick steel plate meeting the requirements is manufactured through a method of controlling rolling, quenching and low-temperature tempering.

The invention relates to a polyolefin microporous membrane and a preparation method thereof. The polyolefin microporous membrane is composed of a modified superhigh molecular weight polyolefin master grain and high-density polyolefin, wherein the modified superhigh molecular weight polyolefin master grain is composed of the following components by weight percent: 40-70% of superhigh molecular weight polyethylene resins, 10-25% of modified resins, 15-25% of additives and 5-10% of lubricants. The quantity of crystal points of the polyolefin microporous membrane provided by the invention is reduced; the tensile strength is high; the homogeneity of product property is excellent; the method is simple in process; and the prepared polyolefin microporous membrane product has a suitable pore size,excellent ventilating property, a low-temperature disconnecting function and excellent mechanical property.

The invention relates to a high manganese hot-dip galvanized steel sheet containing rare earth and a manufacture method thereof. The high manganese hot-dip galvanized steel sheet comprises the following chemical components by chemical component: 0.4-0.8% of C, 14-20% of Mn, 0.05-0.15% of RE, less than or equal to 0.020% of P, less than or equal to 0.012% of S, 1.0-2.0% of Al, 0.01-0.03% of N, and the balance of Fe and unavoidable impurity, and Mn+20*C are greater than or equal to 30%, and Al+5*Re are greater than or equal to 1.8%. The method employs a cold rolling-continuous annealing for pickling-galvanizing technology, the steel plate yield strength is 450-650 MPa, the tensile strength is 980-1100 MPa, the elongation percentage is more than 50%, structure under room temperature is 100% of austenite, the recrystallization fraction is 80-95%, the delayed cracking performance is good, and the steel sheet has superhigh strength and high mouldability. The steel sheet is especially suitable for vehicle structural members and safety members with high shaping performance and corrosion resistance as well as complex shapes, such as side door beam, bumpers, floor tunnels, various beams and b columns.

The invention relates to a production method of extra-deep drawing hot-dip galvanized steel for automobile roofs. The method includes the following steps: performing converter smelting and RH refiningto molten iron in a blast furnace to achieve an ultra-low carbon pure (titanium alloy added) ingredient; continuously casting to form a slab of 230 mm in thickness and off line; performing scaling tothe upper surface and the lower surface and then heating, rolling austenite zone; performing laminar cooling to the front section, reeling and obtaining a hot rolling reel with uniform microstructures and two-phase particles in sparse distribution; slowly cooling to 60 DEG C below and then uncoiling; efficiently pickling, rolling into a chill reel under high pressure; preforming powerful cleaningand continuous annealing, and then performing hot galvanizing; then adopting a polishing machine for polishing and then performing finishing. The yield strength of the steel plate is 150-170 MPa, andthe fluctuation of the yield strength of the full-length reel is equal to and smaller than 7 MPa; the surface appearance is fine and smooth, and the color and lustre are uniform; the steel has the performances of excellent punch forming, dent resistance, welding performance, corrosion resistance and coating performance, fully meets the requirements on materials for high-grade automobile roofs; the technology is simple and easy to control, the production process is stable, and the production cost is remarkably reduced.

The invention relates to a high-heat-conductivity crosslinkable resin composition as well as a prepreg and a thermosetting copper-clad plate prepared thereby. The high-heat-conductivity crosslinkableresin composition is prepared by mixing crosslinkable matrix resin, modified resin, high-heat-conductivity filler, auxiliary filler, a flame retardant and an initiator through a ball-milling method. Anon-cured piece with uniform thickness and flat surface is prepared by extruding, mold-pressing or scrape-coating modes under the low-temperature environment, and the prepreg with proper toughness and viscosity is prepared through the steps of baking and the like. The thermosetting copper-clad plate is prepared by superposing the prepreg, a film and a copper foil through a laminating process. Thethermosetting copper-clad plate has an excellent dielectric property, mechanical strength, heat resistance, high heat-conducting coefficient, low thermal expansion coefficient and excellent propertyuniformity, and can meet various property requirements on the thermosetting copper-clad plate material by the current high-frequency and high-speed communication field. Good industrialized productionbasis and wide application prospect are achieved.

The invention discloses a manufacturing technique of a heavy piece-weight thick steel plate used for an offshore wind turbine tower tube. The chemical components of the used continuous casting slabs are as follows: 0.08-0.16% of C, 0.20-0.50% of Si, 1.10-1.60% of Mn, less than or equal to 0.010% of S, less than or equal to 0.010% of P and less than or equal to 0.50% of micro-alloyed elements; and at least two continuous casting slabs are provided with grooves, overlapped and welded into a big-thickness continuous casting blank by using a combined welding technique of gas shielded welding, submerged-arc welding and electron-bombardment welding, and then, the blank is arranged in a bogie-type furnace or a soaking pit furnace for heating, rolled by a thick plate rolling machine after being discharged from the furnace, cooled under control and subjected to heat treatment so as to obtain the heavy piece-weight thick steel plate used for the offshore wind turbine tower tube. The technique has the following characteristics that the maximum piece weight of the steel plate used for the offshore wind turbine tower tube is 40t, the requirement of reducing welding lines in the tower tube manufacturing process is satisfied, the manufacturing technique is simple in production process, high in yield, high in ultrasonic flaw detection rate of more than 98% and excellent in each factor such as low-temperature roughness, Z-direction performance and the like.

The invention relates to a cold-rolling strip steel used for an automobile flywheel processed by precision stamping and a manufacture method thereof, which solves the technical problems that the manufacture cost of the cold-rolling strip steel used for precision stamping is high, the high strength and toughness of the cold-rolling strip steel are not matched, and the precision stamping moulding cannot be satisfied. The cold-rolling strip steel comprises the following chemical components by mass percentage: 0.49-0.54% of C, 0.15-0.30% of Si, 0.70-0.90% of Mn, less than or equal to 0.015% of P, less than or equal to 0.003% of S, 0.10-0.20% of Cr, 0.015-0.040% of Alt, and the balance of iron and unavoidable impurity. The structure is composed of block ferrite, granular pearlite and a few of sheet-shaped pearlite, the yield strength of the cold-rolling strip steel is 410-460 MPa, and the percentage elongation after fracture A50 is 25-33%. The cold-rolling strip steel is used for fine blanking of the automobile flywheels.

The invention relates to a super-thick pipeline steel plate with excellent low-temperature toughness and a production method. The technical scheme is as follows: P is less than or equal to 0.006%, S is less than or equal to 0.002%, N is less than or equal to 0.0040%, H is less than or equal to 0.00015%, O is less than or equal to 0.0020%, the sum of N,O,H,S and P is less than or equal to 100 ppm, the trace element Sn is less than or equal to 0.015%, the trace element Pb is less than or equal to 0.005%, the trace element Sb is less than or equal to 0.010%, the trace element Bi is less than or equal to 0.005%, the radioactive element intensity is lower than 100 Bq / gram, fineness of various non-metallic inclusions is smaller than or equal to 1.5 grade, and the sum is smaller than or equal to 4.0. Crystal grains are refined, the inherent structure texture of the steel plate is eliminated, the performance uniformity of the super-thick steel plate is guaranteed, technological difficulties that toughness is difficult to match and the thickness direction performance is non-uniform during production of super-thick pipeline steel are broken through, the tiny and uniform acicular ferrite structure is obtained, and the steel plate is good in strength, excellent in series low-temperature toughness and high in uniformity.

The invention discloses D6A hot-rolled wide strip steel for a thermometal saw blade backing material and a production method thereof. The strip steel comprises, by mass percentage, 0.45-0.55% of C, 0.05-0.30% of Si, 0.6-1.0% of Mn, less than or equal to 0.025% of P, less than or equal to 0.010% of S, 0.9-1.20% of Cr, 0.08-0.15% of V, 0.50-0.70% of Ni, 0.90-1.20% of Mo, 0.05-0.15% of Al, 0.007-0.015% of N, and the balance Fe; and the specification of the hot-rolled wide strip steel is (3.0-8.0) * (960-1500) mm. The production method includes the steps of 210t converter smelting, refining in a ladle furnace and a vacuum furnace, slab continuous casting machine pouring and slab hot-charging and hot-feeding, wherein the charging temperature of a slab entering a heating furnace is greater than 400 DEG C, the heating temperature of the slab is greater than or equal to 1200 DEG C, and the hot rolling finishing temperature is 860-920 DEG C; the rolled strip steel adopts a laminar flow sparse cooling mode, and the coiling temperature is 650-720 DEG C; and a hot-rolled steel coil is put into a slow cooling pit or a slow cooling cover to be slowly cooled. The hot-rolled wide strip steel product produced by the method is wide in width specification range, high in size precision, small in performance difference and high in yield.

Provided is an activated carbon lead energy storage / battery containing an improved negative activated electrode packet exhibiting substantially reduced resistance with ported paraffin impregnated expanded graphite foil shielding overlying a cutaway notch in the underlying current collector to permit sulfuric acid electrolyte infiltration.

The invention discloses finishing oil for the manufacturing of continuous silicone carbide fiber and an application process thereof. The finishing oil for the manufacturing of the continuous silicone carbide fiber is a modified organic silicone oil water solution or emulsion prepared by adding water into modified organic silicone oil, and the modified organic silicone oil is polysiloxane containing different active groups. The finishing oil has a simple preparation method. The finishing oil is applied to the manufacturing of the continuous silicone carbide fiber, has the characteristics of simple process, convenient operation, easy implementation on production lines of SiC fiber and the like, can effectively reduce the mechanical damage to PCS fiber when the PCS fiber passes through guide rolls, reduce broken filaments and broken ends of the fiber, improve the convergence and filament bundling strength of the fiber, and improve the mechanical properties and the uniformity of the prepared SiC fiber.

The invention relates to a cold-rolled steel sheet for an automobile-seat-adjusting toothed plate produced through precision stamping and a manufacturing method of the cold-rolled steel sheet, and solves the technical problem that a cold-rolled steel sheet for an automobile-seat-adjusting toothed plate prepared through precision stamping in the prior art is low in size precision and relatively low in spheroidization rate, and is not suitable for high-speed precision stamping. The cold-rolled steel sheet comprises chemical components, by weight: 0.38-0.45% of C, 0.20-0.30% of Si, 0.70-0.90% of Mn, no more than 0.015% of P, no more than 0.005% of S, 0.80-1.10% of Cr, 0.05-0.30% of Mo, 0.015-0.050% of Alt, and no more than 0.0080% of N, with the balance being iron and inevitable impurities. The cold-rolled steel sheet is used for high-speed precision stamping to produce components, such as an automobile-seat-adjusting toothed plate.

The invention discloses a 690MPa-grade low-yield-ratio thin-gauge weather-proof bridge steel and a manufacturing method of the 690MPa-grade low-yield-ratio thin-gauge weather-proof bridge steel. The bridge steel is composed of, by mass, 0.05%-0.09% of C, 0.21%-0.50% of Si, 1.30%-1.70% of Mn, smaller than or equal to 0.010% of P, smaller than or equal to 0.002% of S, 0.041%-0.070% of Nb, 0.010%-0.020% of Ti, 0.15%-0.40% of Cu, 0.40%-0.80% of Ni, 0.40%-0.70% of Cr, 0.15%-0.35% of Mo, 0.02%-0.04% of Alt and the balance Fe and inevitable impurities. Through economical component design and a matched manufacturing method of controlled rolling and controlled cooling, off-line quenching and off-line tempering, the thin weather-proof bridge steel with the thickness of 6mm to 32mm and the yield strength of 690 MPa is produced, so that the bridge steel has the characteristics of low yield ratio, high low-temperature toughness, high ductility and good plate shape.

The invention discloses a preparation and application method for a polyurethane modified acrylate water repellent, and belongs to the technical field of macromolecules. According to the preparation and application method, an emulsion polymerization technology is adopted, diisocyanate, polymer dihydric alcohol and a hydrophilic chain extender are subjected to pre-polymerization and chain extension,an end-capping reagent is added for end-capping, then neutralization is carried out, water is added for emulsification, in the absence of an emulsifier, a product and an aliphatic acrylate monomer are subjected to copolymerization so as to prepare an anionic polyurethane modified acrylate composite emulsion, and the anionic polyurethane modified acrylate composite emulsion is used for textile finishing. The preparation and application method has the advantages that a long alkane chain endows fabric with the water repellent property, after the fabric is treated, a layer of water repellent filmis formed on the surface of the fabric, so that the water repellent capacity of the fabric is greatly improved, and polyurethane is added, the fabric can be endowed with the soft and full hand feeling; and in addition, the VOC emission amount is extremely low, and the method is suitable for environmental protection requirements.

The invention discloses a blended yarn of an air-conditioning fiber and a cotton fiber / a cotton-type chemical fiber. The blended yarn is composed of, by mass, 30-60% of the air-conditioning fiber, and 40-70% of the cotton fiber / the cotton-type chemical fiber. The invention further discloses a preparation method of the blended yarn. The method comprises the steps that the opening and picking process and carding process are conducted on the weighed air-conditioning fiber and the weighed cotton fiber / the cotton-type chemical fiber, then carding sliver of the air-conditioning fiber is obtained and carding silver of the cotton fiber / the cotton-type chemical fiber is obtained; a drawing frame is used for conducting drawing on all the carding silver, then drawn silver of the air-conditioning fiber is obtained, and drawn silver of the cotton fiber / the cotton-type chemical fiber is obtained; the drawn silver of the air-conditioning fiber and the drawn silver of the cotton fiber / the cotton-type chemical fiber are mixed to obtain a strip-shaped air-conditioning fiber and cotton fiber mixture or an air-conditioning fiber and cotton-type chemical fiber mixture; a coarse spinner and a spinning frame are used for processing the mixture to obtain the blended yarn. The blended yarn not only has the good temperature regulation effect, but also has a good mechanical property and yarn evenness.

The invention discloses a technique for manufacturing a 150-400mm thick carbon constructional steel plate by using continuous casting slabs, belonging to the field of metal materials. The continuous casting slabs subjected to converter steelmaking and secondary refining are used in the technique; and the chemical components of the slabs include 0.14-0.20wt% of C, 0.20-0.50wt% of Si, 0.08-1.40wt% of Mn and less than or equal to 0.010wt% of S; at least two continuous casting slabs subjected to surface machining and cleaning are overlapped, four sides of the continuous casting slabs are combined and welded to form a big-thickness blank, the blank is arranged in a bogie-type furnace or a soaking pit furnace for heating, and then is rolled, water-cooled and subjected to heat treatment after being discharged from the furnace so as to produce the 120-400mm thick carbon constructional steel plate. The technique has the following characteristics of simple production process, high yield, high ultrasonic flaw detection rate of more than 98% and excellent performance.

The invention relates to a bearing roller of a 4200 mm or above wide and thick plate rolling mill and a manufacturing process of the bearing roller, and belongs to the technical field of forging. Thebearing roller comprises, by mass percent, 0.50 to 0.65% of C, 0.17 to 0.50% of Si, 0.80 to 2.0% of Mn, 0.30 to 0.70% of Ni, 1.60 to 2.5% of Cr, 0.30 to 1.00% of Mo, 0.10 to 0.35% of V, not larger than 0.020% of P, not larger than 0.010% of S, not larger than 0.15% of Cu, not large than 1.0 ppm of H, and the balance iron and inevitable impurities. The carton content of a new material of the super-huge type forged steel bearing roller is low, alloy elements of chromium, nickel and vanadium are added, the microstructure comprises bainite and pearlite, the strength and toughness of the material are improved, the solidification segregation of a large steel ingot is reduced, the comprehensive performance is good, and the service life is long.

A method for FinFET fabrication includes forming at least three semiconductor fins over a substrate, wherein first, second, and third of the semiconductor fins are lengthwise substantially parallel to each other, spacing between the first and second semiconductor fins is smaller than spacing between the second and third semiconductor fins; depositing a first dielectric layer over top and sidewalls of the semiconductor fins, resulting in a trench between the second and third semiconductor fins, bottom and two opposing sidewalls of the trench being the first dielectric layer; implanting ions into one of the two opposing sidewalls of the trench by a first tilted ion implantation process; implanting ions into another one of the two opposing sidewalls of the trench by a second tilted ion implantation process; depositing a second dielectric layer into the trench, the first and second dielectric layers having different materials; and etching the first dielectric layer.

The invention discloses a production method for improving the section hardness uniformity of NSM30 plastic mold steel. The production method comprises specific processes of converter steel refining-LFrefining-RH vacuum treatment-320 mm continuous cast blank-heating-rolling-tempering; in the heating process of steel blanks, through reduction of the temperature of a soaking section of a heating furnace, the time of the steel blanks in the soaking section is shortened; the steel blanks are cooled on a roller way after discharge from the heating furnace; the surface temperature of the steel blanks is reduced; and the core temperature is higher than the surface temperature, so that the core-surface temperature difference of the steel blanks after heating is increased. The principle of single-pass high pressure is maintained in the steel rolling process to achieve the maximum deformation of core parts of steel plates, so that the thickness direction performance uniformity of steel is improved, and the performances meet requirements after the tempering heat treatment. The section hardness difference of produced NSM30 steel plates is within 25 HBW.

The invention discloses a high-efficiency short-process heat treatment technology for marine titanium alloy, wherein a plurality of TA5 (Titanium Alloy5) plates are overlapped, a Q235 pressing plate is arranged on the TA5 plates, the thickness of the Q235 pressing plate ranges from 30 to 50 mm, the roughness degree of the pressing plate is less than or equals to 5 mm / m, the charging is performed at the temperature ranging from 400 to 500 DEG C, heat preservation is performed for 50 to 70 minutes at the temperature of 550 DEG C, and temperature rises at the speed of 4 to 5 DEG C / min until reaching 700 DEG C and then heat preservation is performed for 150 to 200 minutes; in addition, the TA5 plates move about in a roller hearth furnace in a reciprocating manner during the whole heat treatment process, the rotational frequency of a roller ranges from 5 to 6 Hz, and the rotational frequency of the roller ranges from 10 to 15 Hz in a wind cooling stage. The TA5 plates that are processed through the high-efficiency short-process heat treatment technology achieve good performance uniformity, the shear strength of all parts of the TA5 plates ranges from 680 to 700 Mpa, the tensile strength ranges from 700 to 725Mpa, the elongation percentage ranges from 19 to 23 percent, and the high-efficiency short-process heat treatment technology is a plurality of times the annealing efficiency of a continuous annealing furnace.

The invention discloses a method for improving performance uniformity of a steel roll of Ti microalloyed high strength machinery, which comprises the following steps: refining and heating molten steel with Ti addition amount of 0.07-0.14% and roughing the molten steel to obtain an intermediate billet; heating the edge of the intermediate billet and then finish rolling to obtain a hot rolled plate; cooling the hot rolled plate in a U-shape and rolling into a hot roll; and straightening the hot roll and obtaining the product. According to the method for improving performance uniformity of a steel roll of Ti microalloyed high strength machinery, the performance uniformity of the final product in the rolling direction is improved in the U-shaped cooling model in the cooling process, and the comprehensive yield is improved. With the adoption of edge inductive heating of the intermediate billet, the performance uniformity of the final product in the horizontal direction is improved, and the safety of the material in the using process is improved.