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4065results about How to "Meet production needs" patented technology

Hot galvanizing steel plate for car and production method thereof

InactiveCN102839322AHigh work hardening indexHigh work hardening index n90 valueMetal rolling arrangementsSheet steelTrace element
The invention discloses a hot galvanizing steel plate for a car. The hot galvanizing steel plate comprises the following chemical components by weight: C is more than or equal to 0.001% and is less than or equal to 0.003%, Mn is more than or equal to 0.05% and is less than or equal to 0. 15%, Si is less than or equal to 0.03%, P is less than or equal to 0.02%, S is more than or equal to 0.008% and is less than or equal to 0.015%, Alt is more than or equal to 0.02% and is less than or equal to 0.07%, Ti is more than or equal to 0.05% and is less than or equal to 0.09%, B is more than or equal to 0.0002% and is less than or equal to 0.010%, N is less than or equal to 0.004% and the balance of Fe and trace element. The invention also discloses a method for producing the hot galvanizing steel plate for the car; according to the hot galvanizing steel plate for the car and the production method of the hot galvanizing steel plate, the sulfur content in steel making can be adjusted based on the mixture ratio of components, and the technology of hot rolling, continuous annealing, hot galvanizing steel and finishing are optimized, thus producing the continuous annealing hot galvanizing steel, so that the steel plate has the characteristics of high processing hardening index of n90 value, and the requirements on demand of expanding-formed car plate are satisfied.
Owner:SHOUGANG CORPORATION

High-cleanliness pipeline steel smelting process

ActiveCN104630418ASolve the difficulty of cleanliness controlQuality improvementManufacturing convertersSulfurNon-metallic inclusions
The invention discloses a high-cleanliness pipeline steel smelting process. The process route comprises molten iron pouring, molten iron pretreatment, converter smelting, tapping, deoxidizing, alloying, LF refining furnace, treating with calcium, RH vacuum furnace and continuous casting and is characterized by comprising the following specific steps: firstly, converter smelting process; secondly, refining furnace smelting process; and thirdly, continuous casting process. The invention belongs to a steel-making process in the field of metallurgy and relates to a method for smelting and controlling a high-cleanliness pipeline steel. By molten iron desulphurization pretreatment, optimizing a converter tapping and deoxidizing system and a slagging system, LF refining furnace deep deoxygenation and reducing slag manufacturing processes, RH high-vacuum-degree degassing and inclusion removal process, the pouring is protected by the continuous casting in the whole process so that the composition of a casting billet is uniform, the contents of harmful elements such as S, P, O, N and H are low, the non-metallic inclusions are effectively controlled, the casting billet is good in internal quality and the production of high value-added ultra-low sulfur steel is ensured.
Owner:NANJING IRON & STEEL CO LTD

Method for preparing titanium white

The invention provides a method for preparing titanium white. The method comprises the following steps of: preparing titanium solution from high titanium hydrochloric acid leaching residue, which is prepared from a titanium iron material through a hydrochloric acid leaching method, serving as a raw material or one of raw materials through acidolysis by using sulfuric acid; oxidizing the titanium solution, performing organic extraction and purification, and hydrolyzing to obtain metatitanic acid; and performing washing, salt treatment, calcination and surface treatment on the metatitanic acid to prepare the titanium white. According to the method, hydrochloric acid composite system solution containing chlorate is subjected to diffluent disposal and is recycled after the titanium iron material is leached, and is organically matched with a cyclic process of an organic extraction and purification and sulfuric acid system of the titanium solution, so that the titanium solution treatment process and the cost are reduced; and since the used hydrochloric acid, sulfuric acid and organic extraction agent can be recycled, ferrous sulfate (green vitriol) is not produced; and thus, the discharge of dilute sulfuric acid and acidic wastewater is effectively reduced, and the quality of the titanium white is obviously improved. According to the method provided by the invention, high efficiency, cleanness, low cost, low energy consumption and low waste discharge effects of an entire flow are realized; a novel process technology is provided for producing the titanium white by a sulfuric acid method; and fine grained rock type ilmenite with high calcium and magnesium content at the Panxi area can be effectively utilized.
Owner:攀枝花新中钛科技有限公司

Method for producing high-strength thin strip steel in short process

The invention relates to a method for producing high-strength thin strip steel in a short process. Twin roll strip casting is adopted for producing an atmospheric-corrosion-resistant steel casting belt containing a rare earth element Re, hot rolling, cooling and anti-oxidation intensive cooling scale removing are performed on the steel casting belt, and then the steel casting belt is reeled up after being straightened, wherein in the hot rolling process of the strip steel, rolling reduction is not smaller than 20%, and finishing rolling temperature is 850-1000 DEG C; then, a staged cooling mode of atomization cooling plus anti-oxidation intensive cooling ( spraying dry ice) is adopted, and intensive cooling is carried out on the high-temperature strip steel, wherein the cooling rate in the atomization cooling process is 50-100 DEG C / s, and the cooling rate in the anti-oxidation intensive cooling process is 100-200 DEG C / s. In this way, through the combined type staged cooling, the uniform steel of a bainite microscopic structure can be obtained, and the bainite structure can remarkably improve the toughness of the steel. The method is especially applicable to atmospheric-corrosion-resistant high-strength thin strip steel with the surface roughness Ra smaller than 2 microns, the thickness of typical strip steel is 0.8-1.6mm, and the strip steel can be supplied in a hot mode instead of a cool mode.
Owner:BAOSHAN IRON & STEEL CO LTD

O-shaped sealing ring automatic assembly device and method

The invention discloses an O-shaped sealing ring automatic assembly device and method. The device comprises a sleeve automatic loading module, an O-shaped sealing ring automatic loading module, an automatic detecting module, a finished product sorting module, all of which are arranged on the outer side of a revolving worktable module in the peripheral direction in sequence; the sleeve automatic loading module and the O-shaped sealing ring automatic loading module are in supply connection with the revolving worktable module; the automatic detecting module detects the assembly effect of O-shapedrings on the revolving worktable module in real time; and the finished product sorting module is used for realizing sorting of qualified and unqualified products through chutes according to the detecting result of the automatic detecting module. The device is simple in structure and convenient to use; and through motions of three arc plates on clamping jaws of a three-jaw cylinder and pressing plates with the same apertures as the diameters of sleeves, the clamping and assembly of the O-shaped sealing rings are achieved, the automatic assembly task of the O-shaped sealing rings can be finished with high quality, a lot of manpower and costs are saved, the assembly efficiency is quickly accelerated, and the production demands are met.
Owner:NANJING KANGNI NEW ENERGY AUTO PARTS CO LTD +1

Multifunctional rotary displacement conveying mechanical arm capable of taking materials in branched mode

The invention discloses a multifunctional rotary displacement conveying mechanical arm capable of taking materials in a branched mode. The multifunctional rotary displacement conveying mechanical armcomprises a base, a lifting stand column, a transverse moving mechanism, a mechanical arm body, a connecting piece and a mechanical claw; the lifting stand column is fixed on the base through a rotarydisc, the transverse moving mechanism is arranged on the lifting stand column, the lifting stand column comprises a lifting air cylinder and a supporting stand column, and the bottom of the lifting air cylinder is arranged on the rotary disc; a plurality of spherical ring holes are formed in the mechanical arm body, spherical fixing rings are installed in the spherical ring holes, a branch mechanical arm body penetrates through the spherical annular holes of the mechanical arm body and is fixed on the mechanical arm body, two symmetric arc-shaped notches are formed in each spherical ring hole, the width of the arc-shaped notches is smaller than the width of the spherical fixing rings, and a hook or a vacuum sucking disc is arranged on the branch mechanical arm body. According to the mechanical arm, the branch mechanical arm body is fixed on the mechanical arm body through spherical positioning rings, multi-direction and multi-angle position adjustment of the branch mechanical arm bodyis realized along with the rotation of the spherical positioning rings, and the production requirements of multi-variety small-batch production are met.
Owner:薛敏强

Boron-containing weather-proof thin strip steel and manufacturing method thereof

Provided are boron-containing weather-proof thin strip steel and a manufacturing method thereof. The manufacturing method comprises performing double roller thin strip continuous casting to produce boron-containing weather-proof steel; after a cast strip is processed through a crystallizing roller, adopting a mode of spraying dry ice to perform uniform strengthened cooling on the cast strip, rapidly cooling the cast strip to below 1,280 DEG C, and enabling the cooling speed to be 200-300 DEG C / s, so that precipitation of thick and large BN in the cooling mode is promoted, emergency of low-melting-point-phase B203 and precipitation of tiny AlN are avoided, and the aims of homogenizing austenite grains and reducing yield ratio are achieved; then performing austenite on-line recrystallization rolling; then performing anti-oxidizing rapid cooling to cool the strip steel undergoing hot rolling, and enabling the cooling temperature to be 80-200 DEG C / s; and enabling coiling temperature to be 500-600 DEG C. Steel with low yield ratio can be obtained through the manufacturing method, and the problems that steel produced by thin strip continuous casting are universally uneven in structure, high in yield ratio and difficult to form and cannot meet the requirements for cold rolling materials are effectively solved.
Owner:BAOSHAN IRON & STEEL CO LTD

Truss supporting technology for ingredient top slope deformation control

InactiveCN1594834AReduce distortionSolve the problem of shear slip and cavingMine roof capsAnchoring boltsPull forceWhole body
A truss supporting technology for controlling ingredient top slope deformation is adapted for controlling the sinkage of wide span alley way top board separation layer, the top board and alley slope shear-slip breakaway or controlling the deformation of alley slope part. When using an anchor rod anchorage cable support for ingredient top board or alley slope part, plural trusses composed of two steel twist lines and double hole steel bushing coupler is set on the ingredient top board or alley slope part with spaces for support, each truss is shielded under the anchor solid, two steel twist lines are connected and locked by the coupler to form expansion and pull force to generate extrusion and protection function for the ally way top board or slope part. Not only the problem that the sinkage of the wide span alley way top board separation layer and the top board and alley slope shear-slip breakaway is solved, the top board is supported effectively, but also the displacement of the alley slope towards to alley inside is controlled, thereby the deformation of the alley slope is reduced, so the alley way can satisfy production requirement. In addition, the connection of the support whole body between the steel twist lines is adopted to change the limit of single anchorage cable support. The structure is simple, convenient in use and has broad practicability.
Owner:CHINA UNIV OF MINING & TECH

Method for preparing functional fluorine-bearing monomer by vertical-tube type catalytic reaction

The invention discloses a preparation method of a functional fluorine-containing monomer. The method comprises the following steps of: uniformly mixing a perfluoro-linear chain or branched chain acyl fluoride compound, trifluoroethylene sulfuric ester and anhydrous hydrogen fluoride liquid in the mole ratio of 1:1:(1-20); passing from bottom to top through a vertical-tube type reactor which is filled with a catalyst; finishing addition reaction in a short time under the action of the high specific surface area catalyst inside the reactor; and setting apart a reaction liquid product from the upper part of the vertical-tube type reactor to form a product with a general formula in formula (I). In the invention, the functional fluorine-containing monomer can be prepared continuously and efficiently with easily operated reaction equipment, conveniently controlled reaction temperature and no use of any organic solvent, and a high-purity monomer can be obtained through simple rectification. The catalyst filling in the tubular reactor is one or a mixture of active carbon, macro-porousmolecular sieve and porous aluminum oxide. The reaction can be carried out continuously inside the reactor and satisfies industrialization requirements. CF2=CF-O-Rf(I).
Owner:SHANDONG DONGYUE WEILAI HYDROGEN ENERGY MATERIAL CO LTD

Reconfigurable automatic flexible welding production platform and operation method thereof

ActiveCN105252180ATo achieve high flexibility requirementsProduction task production capacity coordinationWelding/cutting auxillary devicesAuxillary welding devicesProduction lineRe design
The invention discloses a reconfigurable automatic flexible welding production platform and an operation method thereof. The reconfigurable automatic flexible welding production platform comprises a production line main body, an accompanying platform, an accompanying fixture, a lifting mechanism, welding robots, a welding robot control center, a fixture transfer trolley, a fixture base and a production platform control center, wherein the accompanying platform can move on a line body; the accompanying clamp is positioned on the accompanying platform; the lifting mechanism is positioned on two sections of the line body; the welding robots are positioned at the two sides of a line body welding station; the welding robot control center controls movement of the welding robots and welding action of a fixed welding gun; the transfer trolley is responsible for replacing a fixture; the fixture base stores fixtures for producing different kinds of assemblies; the production platform control center controls movement of the whole production platform, wherein the movement comprises operation of a welding production line main body and operation of the lifting mechanism, so that high-flexibility requirements of automatic welding production for various small assembly components are reached, and production capacity is re-designed for realizing coordination of production tasks and production capacity.
Owner:YANGZHOU XINLIAN AUTO PARTS +1

Ultralow sulfur steel quick smelting method

ActiveCN103898269AObvious slag desulfurization effectStable controlManufacturing convertersSmelting processMolten steel
The invention discloses an ultralow sulfur steel quick smelting method. The difficult points of slagging, deoxidizing and desulfurating in the smelting process of the ultralow sulfur steel ([S] is not more than 0.0010%) are successfully solved. The method comprises the following steps: pretreating molten steel to desulfurate and remove slag, deeply deoxidizing tapping aluminum block through a converter, modifying composite refined top slag, deoxidizing aluminum wire through a LF refining furnace, slagging through lime and feeding aluminum wire to trimming aluminum molten steel, combining the whole reasonable argon bottom blowing control in the smelting process of the LF furnace, fully playing the metallurgical thermodynamics and thermodynamics and kinetics of desulfuration, organically combining the diffusion deoxidization and sediment deoxidization, sufficiently evacuating deoxidization and desulfuration potential of the slag so that the sulfur content in the molten steel within 40min can be reduced to within 0.0010% through the LF refining furnace and the full oxygen content of casting blank is controlled within 0.0010%. The sulfur content control of the molten steel is stable, the casting blank is good in quality, the steel plate flaw detection yield can achieve above 99%, the ultralow sulfur steel production requirement is completely satisfied, and the smelting production rhythm and the continuous casting pouring furnace are guaranteed.
Owner:NANJING IRON & STEEL CO LTD

System and method for utilizing residual heat of electrolyzer low temperature flue gas

The invention discloses a system and a method for utilizing low-temperature flue gas afterheat of an electrolytic bath. The system mainly comprises a heating system, a cooling system, a dust collecting device and a fume extractor, and utilizes energy cascade utilization, low-temperature afterheat recovery and a heat exchanger to absorb heat by classification from low-grade flue gas for cooling, heating and heat using of technological process. The method includes the following steps: when the low-temperature flue gas afterheat of the electrolytic bath passes through the heat exchanger, the heat exchanger is used for absorbing the heat in the flue gas, and converting the absorbed heat into liquid or steam to utilize, the dust collecting device is used for collecting dust in the flue gas after heat release and temperature reduction, and then the flue gas after dust collection is exhausted by the fume extractor. The invention solves the problem of utilization of the low-temperature flue gas afterheat of the electrolytic bath, realizes continuous supply of cooling and heating, can improve the dust collecting system efficiency of the electrolytic bath, save energy, lower consumption, reduce pollutants discharge, expand utilization ways of afterheat and reduce the production cost of enterprises, and has remarkable economic, environmental and social benefits.
Owner:北京佰能电气技术有限公司
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