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36results about How to "Production control is less difficult" patented technology

Method for preparing warm composite woven fabric

InactiveCN102181986AElasticIncreased warmth and bulkinessMulti-ply fabricsSwivel-woven fabricsYarnSurface layer
The invention relates to a method for preparing warm composite woven fabric. The warm composite woven fabric is prepared by interweaving a group of warp yarns (1) and three groups of filling yarns in an overlapped way, wherein the three groups of filling yarns are respectively face weft (2), intermediate weft (2') and back weft (2''), the face weft (2), the intermediate weft (2') and the back weft (2'') are arranged according to the proportion of 1:1:1, the warp yarn (1) and the face weft (2) are woven into satin weave which has 8 lines and 5 step weft faces and serves as a surface layer according to a mode of an upper needle and seven lower needles and 5 weft step numbers, the warp yarn (1) and the back weft (2'') are woven into satin weave which has 8 lines and 5 step weft faces and serves as a lining according to a mode of an upper needle and seven lower needles and 5 weft step numbers, the warp yarn (1) and the intermediate weft (2') take honeycomb weave as an intermediate layer in terms of Rj equal to Rw and equal to 8, and the Rj and the Rw are respectively the circulated yarn numbers of warp weave and weft weave. The warm composite woven fabric prepared by the method integrates the characteristics of light weight, super warm property, softness, comfortableness, moisture absorption, air permeability, bacterial resistance and bacterial restraint, and the production is simple and easy to implement.
Owner:江苏保丹服饰有限公司

Corrosion-resistant soft cold-rolling tin plate and production method thereof

The invention discloses a corrosion-resistant soft cold-rolling tin plate and a production method thereof. The corrosion-resistant soft cold-rolling tin plate comprises the following chemical components by weight percent: 0.01%-0.04% of C, less than or equal to 0.02% of Si, 0.10%-0.40% of Mn, less than or equal to 0.01% of P, less than or equal to 0.012% of S, less than or equal to 0.011% of Sn, less than or equal to 0.01% of As, 0.005%-0.050% of solAl, less than or equal to 0.004% of N and the balancing of Fe and unavoidable impurities. The production method comprises the steps of hot-metal desulphurization, dephosphorization, converter melting, RH (Ruhrstahl-Heraes) vacuum treatment, continuous casting, continuous hot-rolling, pickling, cold-rolling, electrolytic degreasing, full-hydrogen furnace bell-type annealing (BA), leveling and electrotinning and the like. According to the practice, the uncoated tin plate base of the invention has the advantages of low hardness value and high corrosion resistance at the same time; since the production method thereof is based on the bell-type annealing manner, the production method of the invention has the advantages of low difficulty level of production control, low cost and easy implementation in large-scale production and helps users reduce the cost.
Owner:武钢集团有限公司

Method for producing high-hole-expansion-rate steel 420L for automotive frame

InactiveCN104988386AMeet the development needs of high formabilityProduction control is less difficultChemical compositionLaminar cooling
The invention discloses a method for producing high-hole-expansion-rate steel 420L for an automotive frame. The method includes the steel-making step and the hot rolling step; the steel-making step is characterized in that produced molten steel comprises, by weight, 0.06%-0.08% of C, 1.10%-1.20% of Mn, not larger than 0.008% of S, not larger than 0.020% of P, not larger than 0.10% of Si, 0.015%-0.035% of Als, not larger than 0.0050% of N and the balanced iron and inevitable impurities; and the hot rolling step includes the heating working procedure, the rolling working procedure and the cooling working procedure. The cooling working procedure includes the steps that strip steel enters a first set laminar cooling area at the temperature of 835+ / -15 DEG C, and the strip steel is rapidly cooled at the speed ranging from 50 DEG C / s to 80 DEG C / s to the temperature of 690+ / -20 DEG C; then air cooling within the temperature range is carried out for 2.3 s to 2.8 s; and finally the strip steel enters a second set laminar cooling area, and is cooled at the speed ranging from 20 DEG C / s to 40 DEG C / s to the coiling temperature of 460+ / -20 DEG C. By means of the method, ingredient elements such as the C, the Mn and the Si are adopted, the steel 420L for the automotive frame in needed thickness and specification is produced through the subsection cooling process, and the metallographic structure of the 420L is shown in an attached map; and the development requirement for high-molding performance is met, a small alloy adding amount is added, and a huge economic benefit can be generated.
Owner:TANGSHAN IRON & STEEL GROUP

Production method of anti-aging tinning black plate

The invention relates to a production method of an anti-aging tinning black plate with hardness HR30Tm of 55+ / -4 and discloses a production method of an anti-aging tinning black plate. The method comprises the following steps: smelting: adopting KR desulfurization, smelting in a converter, RH vacuum treatment and continuous casting; hot rolling: carrying out the hot rolling of a continuous casting blank comprising the following chemical components in percentage by weight: C: 0.02-0.06, Si: smaller than or equal to 0.025, Mn: smaller than or equal to 0.50, P: smaller than or equal to 0.020, S:smaller than or equal to 0.030, Als: 0.005-0.040, Ti: 0.005-0.020, N: smaller than or equal to 0.005, the balance of Fe and inevitable impurities; and carrying out pickling, cold rolling, electrolytic degreasing, full-hydrogen bell furnace annealing and leveling of a tinning black plate with hardness HR30Tm of 51-59. The invention has the advantages of small production control difficulty and low cost and hardness value, is beneficial for users to use the anti-aging tinning black plate to manufacture deep drawing cans and can lids with complicated deformation, lessens the canning defects of cracks, crazing slip lines or corded bent surfaces, and the like and improves the canning yield rate and the canning qualified rate.
Owner:武钢集团有限公司

Production method for cold rolling dual-phase steel base plate

ActiveCN105714176AControl the precipitation ratioUniform tissueMetal rolling arrangementsCurie temperatureStrip steel
The invention discloses a production method for a cold rolling dual-phase steel base plate. The production method includes the steel-making and casting step, the heating step, the hot rolling step and the cooling step. The cooling step is in a three-section cooling manner, wherein strip steel is firstly subject to first-time forced cooling and is cooled to 700 DEG C to 740 DEG C; then air cooling is carried out for 1.5 s to 3 s within the temperature range; and the strip steel obtained after air cooling is subject to second-time forced cooling to 620 DEG C to 690 DEG C for reeling, U-shaped control is adopted for reeling, in other words, the temperature used when 20 m to 30 m of the strip steel from the head is reeled is 10 DEG C to 30 DEG C higher than the temperature used when the middle portion of the strip steel is reeled, and the temperature used when 40 m to 80 m of the strip steel to the tail is reeled is 20 DEG C to 40 DEG C higher than the temperature used when the middle portion of the strip steel is reeled. According to the method, at the temperature close to the austenite transformation Curie temperature, the slow cooling process is adopted, ferritic structures are homogenized, and the precipitation proportion of pearlites is controlled; compared with a conventional production process, the uniformity of the structures and the performance is facilitated; and through mechanics property analysis in the hot rolling pass length direction, the strength property fluctuation is smaller than 20 MPa, and the products meet the using requirements of a next working procedure.
Owner:TANGSHAN IRON & STEEL GROUP

High-strength high-conductivity copper chromium zirconium alloy and low-temperature deforming preparing method thereof

ActiveCN110066939AHigh conductivity at room temperatureMany low temperature methods are availableNanoscopic scaleNanostructure
The invention relates to the field of copper alloy and application thereof, in particular to a high-strength high-conductivity copper chromium zirconium alloy and a low-temperature deforming preparingmethod thereof. The alloy comprises chemical components including, by mass percent, 0.2 to 1.5% of chromium, 0.05 to 0.2% of zirconium and the balance copper and inevitable impurities. The typical structure of the alloy comprises a copper matrix of a nanoscale deformation structure and dispersed distribution chromium particles, the typical nanostructure is a deformation twin crystal bundle, the twin crystal layer piece thickness ranges from 20 to 100 nanometers, the twin crystal bundle size ranges from several microns to several hundred microns, and the diameter of the dispersed distributionchromium particles ranges from 10 to 100 nanometers. The alloy has the 700 MPa stage strength, and meanwhile, the conductivity is within the 78 to 82% IACS range. The manufacturing method of the alloycomprises the steps of alloy blank casting heat machining and low-temperature deforming. The alloy has the advantages of being high in strength, high in conductivity, high in softening temperature, excellent in wear resisting and welding property and the like and can be suitable for the field of use of existing copper chromium zirconium alloy and the field with the higher requirement for strength-conductivity.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Corrosion-resistant soft cold-rolling tin plate and production method thereof

The invention discloses a corrosion-resistant soft cold-rolling tin plate and a production method thereof. The corrosion-resistant soft cold-rolling tin plate comprises the following chemical components by weight percent: 0.01%-0.04% of C, less than or equal to 0.02% of Si, 0.10%-0.40% of Mn, less than or equal to 0.01% of P, less than or equal to 0.012% of S, less than or equal to 0.011% of Sn, less than or equal to 0.01% of As, 0.005%-0.050% of solAl, less than or equal to 0.004% of N and the balancing of Fe and unavoidable impurities. The production method comprises the steps of hot-metal desulphurization, dephosphorization, converter melting, RH (Ruhrstahl-Heraes) vacuum treatment, continuous casting, continuous hot-rolling, pickling, cold-rolling, electrolytic degreasing, full-hydrogen furnace bell-type annealing (BA), leveling and electrotinning and the like. According to the practice, the uncoated tin plate base of the invention has the advantages of low hardness value and highcorrosion resistance at the same time; since the production method thereof is based on the bell-type annealing manner, the production method of the invention has the advantages of low difficulty level of production control, low cost and easy implementation in large-scale production and helps users reduce the cost.
Owner:武钢集团有限公司

High-strength anti-aging single-component modified sealant for bonding rubber and plastic composite materials and preparation method of high-strength anti-aging single-component modified sealant

The invention discloses a high-strength anti-aging single-component modified sealant for bonding rubber and plastic composite materials and a preparation method thereof, and relates to the technical field of high-molecular bonding material sealants, the high-strength anti-aging single-component modified sealant is composed of the following raw materials: a silane-terminated polyether polyurethane polymer, a silane modified acrylate polymer, a first plasticizer, a water removal agent, a bonding accelerator, a filler and the like, the high-strength anti-aging single-component modified sealant for bonding the rubber and plastic composite materials has excellent bonding adaptability, and has good bonding property on low-surface-energy base materials such as the rubber and plastic composite materials; the product provided by the invention has very good strength performance, the shear strength can reach about 5 MPa, the tensile strength can reach about 7 MPa, the notch tear strength can reach more than 28 N / mm, and the elongation at break can reach more than 600%, which reach and even exceed the performance index of polyurethane automobile windshield glass glue.
Owner:SHANDONG NORTH MODERN CHEM IND

A high-strength and high-conductivity copper-chromium-zirconium alloy and its low-temperature deformation preparation method

ActiveCN110066939BHigh conductivity at room temperatureMany low temperature methods are availableHot workingNanostructure
The invention relates to the field of copper alloy and application thereof, in particular to a high-strength high-conductivity copper chromium zirconium alloy and a low-temperature deforming preparingmethod thereof. The alloy comprises chemical components including, by mass percent, 0.2 to 1.5% of chromium, 0.05 to 0.2% of zirconium and the balance copper and inevitable impurities. The typical structure of the alloy comprises a copper matrix of a nanoscale deformation structure and dispersed distribution chromium particles, the typical nanostructure is a deformation twin crystal bundle, the twin crystal layer piece thickness ranges from 20 to 100 nanometers, the twin crystal bundle size ranges from several microns to several hundred microns, and the diameter of the dispersed distributionchromium particles ranges from 10 to 100 nanometers. The alloy has the 700 MPa stage strength, and meanwhile, the conductivity is within the 78 to 82% IACS range. The manufacturing method of the alloycomprises the steps of alloy blank casting heat machining and low-temperature deforming. The alloy has the advantages of being high in strength, high in conductivity, high in softening temperature, excellent in wear resisting and welding property and the like and can be suitable for the field of use of existing copper chromium zirconium alloy and the field with the higher requirement for strength-conductivity.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Method for preparing warm composite woven fabric

The invention relates to a method for preparing warm composite woven fabric. The warm composite woven fabric is prepared by interweaving a group of warp yarns (1) and three groups of filling yarns in an overlapped way, wherein the three groups of filling yarns are respectively face weft (2), intermediate weft (2') and back weft (2''), the face weft (2), the intermediate weft (2') and the back weft (2'') are arranged according to the proportion of 1:1:1, the warp yarn (1) and the face weft (2) are woven into satin weave which has 8 lines and 5 step weft faces and serves as a surface layer according to a mode of an upper needle and seven lower needles and 5 weft step numbers, the warp yarn (1) and the back weft (2'') are woven into satin weave which has 8 lines and 5 step weft faces and serves as a lining according to a mode of an upper needle and seven lower needles and 5 weft step numbers, the warp yarn (1) and the intermediate weft (2') take honeycomb weave as an intermediate layer in terms of Rj equal to Rw and equal to 8, and the Rj and the Rw are respectively the circulated yarn numbers of warp weave and weft weave. The warm composite woven fabric prepared by the method integrates the characteristics of light weight, super warm property, softness, comfortableness, moisture absorption, air permeability, bacterial resistance and bacterial restraint, and the production is simple and easy to implement.
Owner:江苏保丹服饰有限公司

A processing method of an aluminum alloy strip that uses an end surface wrapped aluminum foil to suppress the color difference of the side surface

The invention relates to a processing method of an aluminum alloy strip which adopts the end face to wrap the aluminum foil to restrain the surface color difference of the side edge, and the invention relates to a processing method of the aluminum alloy strip. The invention aims to solve the problem of chromatic aberration on the side surface of the aluminum alloy strip obtained by the existing preparation process. Place the aluminum alloy billet in a cold rolling mill for rolling, and let it stand for 20 to 28 hours after rolling to obtain a semi-finished strip coil; wrap the two end faces of the semi-finished strip coil with aluminum foil respectively and bundle them, and then transfer to the return process. Annealing is carried out in the furnace; after annealing, the aluminum foils on the two end faces of the semi-finished strip coil are removed, and then the semi-finished strip coil is transferred to a cold rolling mill for secondary cold rolling to the thickness of the finished product to obtain the finished strip; the finished strip is drawn The bending straightener is straightened, and the final cut is completed. The invention can suppress the burning of the rolling oil and avoid the generation of chromatic aberration. The invention is suitable for the processing of aluminum alloy strips.
Owner:NORTHEAST LIGHT ALLOY CO LTD

A production method of cold-rolled dual-phase steel substrate

ActiveCN105714176BControl the precipitation ratioUniform tissueMetal rolling arrangementsCurie temperatureStrip steel
The invention discloses a production method for a cold rolling dual-phase steel base plate. The production method includes the steel-making and casting step, the heating step, the hot rolling step and the cooling step. The cooling step is in a three-section cooling manner, wherein strip steel is firstly subject to first-time forced cooling and is cooled to 700 DEG C to 740 DEG C; then air cooling is carried out for 1.5 s to 3 s within the temperature range; and the strip steel obtained after air cooling is subject to second-time forced cooling to 620 DEG C to 690 DEG C for reeling, U-shaped control is adopted for reeling, in other words, the temperature used when 20 m to 30 m of the strip steel from the head is reeled is 10 DEG C to 30 DEG C higher than the temperature used when the middle portion of the strip steel is reeled, and the temperature used when 40 m to 80 m of the strip steel to the tail is reeled is 20 DEG C to 40 DEG C higher than the temperature used when the middle portion of the strip steel is reeled. According to the method, at the temperature close to the austenite transformation Curie temperature, the slow cooling process is adopted, ferritic structures are homogenized, and the precipitation proportion of pearlites is controlled; compared with a conventional production process, the uniformity of the structures and the performance is facilitated; and through mechanics property analysis in the hot rolling pass length direction, the strength property fluctuation is smaller than 20 MPa, and the products meet the using requirements of a next working procedure.
Owner:TANGSHAN IRON & STEEL GROUP
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