330 results about "Deep drawing" patented technology

The invention relates to the technical field of plate drawing forming control, and discloses an automatic lubrication control method and system for plate drawing forming and a storage medium. The method comprises the steps that the surface of a deep drawing die is subjected to zoning treatment through a lubricating area dividing module, and parameters of all areas are initialized; carrying out real-time acquisition and pretreatment on process parameters; lubrication demand parameters are obtained through fuzzy control calculation; a proportional servo valve is used for pressure regulation; the lubrication pressure curve is corrected on line; and the lubrication parameters are analyzed and stored in a database. According to the method, the lubricating state of each area is intelligently adjusted by monitoring and analyzing the technological parameters in real time, so that the stability of the drawing forming quality is guaranteed.

The invention discloses steel for a battery shell and a preparation method of the steel, and relates to the technical field of steel preparation. The preparation method of the steel for the battery shell comprises the steps of converter treatment, LF refining, RH refining and continuous casting. Starting from the whole preparation process, free oxygen and the production rhythm are controlled through LF refining, time production of RH refining and continuous casting is achieved, converter end point free oxygen control is coordinated, and generation of molten steel inclusions is reduced; rH refining is momentalized and standardized, continuous casting and casting are implemented in a steady state, and the amount of residual steel is controlled, so that secondary generation of inclusions and pollution to tundish molten steel are reduced. The steel for the battery case has the good characteristics of being good in ultra-deep drawing high-plasticity strain ratio, small in anisotropy, high in surface quality and internal purity, fine and uniform in microscopic grain structure and free of the sand hole defect, and is applied to the field of smelting of high-purity steel. The device is expected to be applied to continuous unmanned large-scale production of the highest-speed shell punching machine tool in the world, import substitution is achieved, and the product quality reaches the international advanced level.

The invention relates to an integrated machining method for a niobium-tungsten alloy composite surface variable-wall-thickness thin-wall part, and belongs to the field of metal plate forming. Determining the size of a niobium-tungsten alloy plate according to the size of the composite surface; groove milling is conducted on the spinning clamping position of the niobium-tungsten alloy plate; the machined plate is arranged on a spinning tire, and a tail top is used for clamping and fixing; the variable wall thickness forming of the curved generatrix part is realized by adopting strong shearing spinning and common spinning deep drawing spinning; the equal-wall-thickness forming of the cylindrical part is realized by adopting multi-pass deep drawing and spinning; the tiny allowance of the outer wall is removed through precise turning cutting, and it is guaranteed that the wall thickness meets the product use requirement; polishing the inner and outer surfaces to reduce the surface roughness; the niobium-tungsten alloy plate is used for forming, the material utilization rate is increased, split connection weld joints are reduced through a highly-integrated forming method, and the structural reliability is improved.

The invention belongs to the field of steel production, and relates to a method for producing high-elongation ultrathin hot-rolled low-carbon steel based on double-roller cast rolling. According to the method, molten steel is subjected to double-roller continuous casting and sub-rapid solidification to form a cast strip, is subjected to one-pass hot rolling to form a thin strip, is subjected to aerial fog cooling to 550-750 DEG C and is coiled, the coiled thin strip is placed in a cover type annealing furnace to be heated and subjected to heat preservation for 1-2 days, and then the hot-rolled thin strip is obtained after straightening and flattening. According to the method, a low-carbon, low-manganese, low-silicon and microalloy-element-free component system is adopted, a hot-rolled thin strip with the high elongation rate is produced through a short-process double-roller cast rolling production line, uniform polygonal ferrite is obtained through online waste heat annealing process design, the strength uniformity and the elongation rate are obviously improved, and production energy consumption is obviously reduced. The finished product is thin in thickness, good in low-temperature toughness, obviously superior to a traditional cold-hot-rolled low-carbon steel product in isotropy, and suitable for producing thin-specification components with complex shapes through cold bending and deep stamping forming.

The invention discloses a water-based chromium-free self-lubricating fingerprint-resistant coating as well as a preparation method and application thereof. The coating comprises the following components in percentage by weight: 15%-32% of compound polyurethane resin, 10%-23% of polyacrylic resin, 1%-5% of a silane coupling agent, 1%-5% of filler, 1%-5% of a compound of molybdenum, vanadium, titanium or zirconium, 0.1%-0.5% of a flatting agent, 1%-5% of a scratch-resistant aid and 24.5%-70.9% of water, wherein the compound polyurethane resin is formed by compounding polyurethane resins with different elongation at break. The coating is used for passivating the metal surface, such as the surface of a galvanized steel sheet, the wear resistance and corrosion resistance of the galvanized steel sheet can be remarkably enhanced, the coating is suitable for a deep drawing process, and a workpiece subjected to deep drawing can still maintain good appearance and excellent wear resistance and corrosion resistance.

A laminate (110) of polypropylene films (100), a luggage shell (120) constructed of the laminate (110), a method (200) of making the laminate (110), and a method (280) of making the luggage shell (120) are provided. The films (100) include a core (102) and at least one outer layer (104). The laminate (110) includes a plurality of films (100). The laminate (110) may be formed by laminating a plurality of films 100 under predetermined pressure, temperature, and time conditions. The shell (120) may be formed by deep drawing a sheet of laminate (110) while applying heat and tension to the laminate (110).

The invention relates to the technical field of metal plate stamping forming, and provides a new energy power battery shell deep drawing forming process parameter optimization method which comprises the steps that orthogonal test design is carried out based on a plurality of sets of parameters, and multiple times of shell deep drawing forming tests are carried out under different process parameters; the method comprises the following steps: analyzing a shell drawing forming test by adopting a response surface method, and establishing a maximum forming reduction rate mathematical model and a minimum forming reduction rate mathematical model based on test data; taking the established mathematical model as a target function, solving an optimal solution of the process parameters by adopting a particle swarm optimization algorithm, and adjusting the process parameters in real time by adopting a PID control algorithm; and combining the optimal solution of the process parameters with left and right double-shaft load monitoring to realize deviation verification analysis of multi-objective optimization numerical values of the process parameters. According to the method, dynamic adjustment of shell deep drawing forming process parameters is achieved, the stability and consistency of the machining process are ensured, and the quality of the formed shell is improved.

The invention relates to the technical field of die forming, in particular to a variable-temperature deep drawing-rapid air expansion composite forming method for a thick titanium alloy plate. The method comprises the steps that a model of a stamping die of the end socket is established, and the thickness of a to-be-stamped plate is set; limiting conditions in the stamping process are set, and a variable-temperature deep drawing model is obtained; establishing a Backoften constitutive equation, and determining strain rate sensitive indexes and strength coefficients at different temperatures according to the material strength at different temperatures; performing a finite element simulation process according to the strain rate sensitive index and the strength coefficient to obtain a superplastic inflatable model; according to the variable-temperature drawing model and the superplastic air expansion model, a variable-temperature drawing-rapid air expansion model is established; representing the simulation performance of the variable-temperature drawing-rapid air expansion model, and analyzing a drawing result and an air expansion result; and determining a test reference according to an analysis result, and carrying out a variable-temperature drawing-rapid inflation composite forming test. According to the scheme, excessive attempts of experiments can be reduced.

The invention discloses a deep drawing part rigid-flexible composite forming die and a forming method, and relates to the technical field of part drawing forming. The forming die comprises a first cavity, a second cavity, a polyurethane pad, a polyurethane block, a first punch, a second punch and a solid particle medium. A solid particle medium is filled between the polyurethane pad and the first punch part in the first cavity; the polyurethane block is positioned in the second cavity; the first punch moves towards the direction close to the second punch, so that the polyurethane pad can deform through the solid particle medium, and the polyurethane pad and the polyurethane block can tightly press a to-be-drawn part; the second punch moves in the direction close to the first punch so that the polyurethane pad, the to-be-drawn part and the polyurethane block can deform, and at least one part of the second punch part can stretch out of the polyurethane block to be used for abutting against and drawing the to-be-drawn part. The forming quality of parts can be improved, blanks can be saved, the production cost is reduced, and the production efficiency is improved.

Disclosed is an alloyed hot-dip galvanized steel sheet in which a substrate of the alloyed hot-dip galvanized steel sheet contains 0-1.0% by mass of Si, the average Fe content in an alloyed hot-dip galvanized layer of the alloyed hot-dip galvanized steel sheet is 10-12% by mass, and the surface phase structural composition of the alloyed hot-dip galvanized layer contains a polygonal zinc-iron alloy phase, the ratio R of the length to the width of the polygonal zinc-iron alloy phase is not less than 1 and not more than Rlt; 2. The alloyed hot-dip galvanized steel plate is good in deep drawability. The invention further discloses a manufacturing method of the alloyed hot-dip galvanized steel plate, the manufacturing method is suitable for the low-silicon steel plate, the alloy phase structure of a steel plate coating is controlled by controlling the air-fuel ratio in the preheating stage and the dew point DP in the soaking stage in the continuous annealing step and the alloying temperature in the alloying step, and therefore the deep drawing performance of the steel plate is improved.

A laminate (110) of polypropylene films (100), a luggage shell (120) constructed of the laminate (110), a method (200) of making the laminate (110), and a method (280) of making the luggage shell (120) are provided. The films (100) include a core (102) and at least one outer layer (104). The laminate (110) includes a plurality of films (100). The laminate (110) may be formed by laminating a plurality of films 100 under predetermined pressure, temperature, and time conditions. The shell (120) may be formed by deep drawing a sheet of laminate (110) while applying heat and tension to the laminate (110).

The invention relates to the technical field of enamel steel manufacturing, in particular to ultralow-carbon high-sulfur high-nitrogen enamel steel and a manufacturing method thereof. On one hand, carbon and phosphorus in the steel are reduced, the purity of molten steel is improved, and the ultra-deep drawing performance of the steel is met; on the other hand, the contents of nitrogen and sulfur in the steel are increased, enough second-phase particles are generated to store hydrogen generated during enameling of the enameling steel, so that the fish scaling resistance of the enameling steel is improved, the comprehensive influence of elements in the steel is comprehensively considered, a fish scaling resistance index and a titanium strengthening index are set, and through appropriate component and process control, the content of the elements in the steel is increased; the technical problem that the enamel steel cannot have good ultra-deep drawability and excellent fish scaling resistance at the same time is solved.

The invention discloses a method and a device for stamping and forming a flat motor shell, the method comprises 14 stations which are sequentially arranged from material sheet entering to finished product outputting, and sheet materials are sequentially conveyed to each station for deep drawing, forming, shaping, trimming and punching operation. According to the method, the complex deep drawing process is divided into seven scientific and progressive working steps, a mold in a specific shape is matched for each step, stable flowing of materials is effectively guided, and the industrial problems that in the deep drawing process, a high-depth motor shell in an irregular shape is prone to being cracked and wrinkled, and the wall thickness is uneven are fundamentally solved.

A twin-sheet wall for a plastic container with an inner plastic shell and an outer plastic shell, wherein the two plastic shells are welded together by deep drawing to form closed cavities between the two plastic shells, is known. According to the invention, both the inner and the outer plastic shell are each provided with a plurality of grooves which are curved alternately in opposite directions and extend at least largely continuously over a height and / or a width and are each open towards a surface. Use for transport containers for general cargo, especially for the automotive industry

The present invention provides a tantalum alloy drawing die and a tantalum alloy sticking die production method, which are used for drawing tantalum alloy, and include an upper insert, a fixed retaining ring and a positioning push rod, wherein the upper insert includes a first surface and a second surface opposite to each other, and the upper insert is provided with a cavity, and the cavity passes through the first surface and the second surface, and the fixed retaining ring is arranged on the first surface, and the fixed retaining ring is provided with a receiving groove, and the receiving groove is connected with the cavity, and the receiving groove is used to receive a blank, and the side wall of the receiving groove is provided with an adjustment hole, and the axis of the adjustment hole is perpendicular to the axis of the cavity, and the positioning push rod is passed through the adjustment hole, and the positioning push rod moves in the adjustment hole and abuts against the blank to fix the blank at a position facing the cavity. The present invention can center blanks of different diameters by arranging a fixed retaining ring and a positioning push rod in the drawing die, and by adjusting the length of the positioning push rod in the fixed retaining ring, so that the drawing die can match blanks of various sizes, and better realize the drawing of formed parts of different heights.

The invention belongs to the technical field of aluminum processing, and particularly relates to a 5xxx aluminum alloy plate production process which is used for solving the problems that a traditional 5xxx aluminum alloy plate is low in strength and poor in plasticity and improving deep drawing formability. Comprising the process steps of smelting, double-roller cast rolling, cold rolling, straightening, box annealing and the like, and indexes such as the strength and the grain size of the aluminum alloy plate are comprehensively improved by optimizing alloy components and adopting the means such as asymmetrical rolling.

The invention relates to a manufacturing method of a power battery aluminum shell, the power battery aluminum shell and a power battery. The manufacturing method comprises the following steps: deeply drawing an aluminum material to form a cuboid-shaped shell blank with an opening at one end; punching the bottom of the shell blank to form a cylindrical structure with two opposite rectangular or circular open surfaces; roughly machining the edges of the two rectangular or circular open surfaces in sequence; a stamping mechanism driven by a servo motor is used for stamping the side wall from the inside to the outside of the cylindrical structure to form a step structure; and sequentially carrying out finish machining on the edges after the step structures are formed. According to the invention, the specific processing sequence is combined with the pioneering step stamping process in the industry, so that the problem that only one end of the shell is provided with the step and the step cannot be processed at the other end is firstly solved, and the problem that the R angle is easy to deform in the processing process is secondly solved, and therefore, the aluminum shell product with high precision, high strength and good adaptability is obtained.

Provided are a high-strength carbon steel suitable as a material of a can for a secondary battery, a metal can manufactured by processing same, and a secondary battery manufactured by accommodating an electrode assembly in the can. A material for manufacturing the metal can is provided in the form of a metal plate. The metal can is manufactured by deep drawing the metal plate. The metal can is made of a material in which a precipitation strengthening element including Nb is added to a carbon steel in a ratio of more than 0.05 wt.% and 0.100 wt% or less. C is contained in the carbon steel in an amount of 0.01 wt.% or more and 0.100 wt.% or less. Mn is contained in the carbon steel in an amount of 0.1 wt.% or more and 0.5 wt.% or less. Si is contained in the carbon steel in an amount of more than 0.001 wt.% and 0.5 wt.% or less.

The invention discloses a horizontal deep drawing forming system and a deep drawing forming method thereof. The horizontal deep drawing forming system comprises a deep drawing base, a deep drawing deformation thinning female die, a deep drawing guide ring and a deep drawing male die. The drawing male die, the drawing guide ring, the drawing deformation thinning female die and the drawing base are coaxially distributed. The deep drawing forming method comprises the steps that a blank is clamped by a mechanical arm and placed at the front end of the deep drawing guide ring, the deep drawing male die moves forwards to be pressed into the blank, the mechanical arm loosens and retreats, the deep drawing male die drives the blank to be sequentially pressed into the deep drawing guide ring and the deep drawing deformation thinning female die, a workpiece is shaped, a discharger is started to be clamped on the shaped workpiece, and the finished product is obtained. And the drawing male die moves backwards to detach the shaped workpiece. The drawing deformation thinning female die is integrally designed, synchronous hole shrinkage deformation and thinning are achieved, the problems of wall thickness deviation and serious external scratches are solved, the die investment is reduced, and the die cost is reduced. And the drawing guide ring is arranged to avoid unbalance loading in the die entering process caused by gravity falling of the male die and the blank.

The invention relates to a deep-drawing tool designed as a die or blank holder. It has at least one contact surface (1) for receiving a workpiece and at least one macrostructure (2). The macrostructure (2) is formed on or at the contact surface (1), and the macrostructure (2) is designed to control the material flow of the workpiece in such a way that at least one of the following parameters—locally occurring stresses, locally occurring thickness variations, locally occurring differences in material properties, or locally occurring springback—is minimized.The macrostructure (2) is formed from at least one elevation (3) of the contact surface (1) with a defined distance of the elevation tip from a form-ideal reference of the contact surface (1) as height and a defined path on the contact surface (1), wherein the height of the at least one elevation (3) of the contact surface (1) over the path is not constant and is at least 5% of the thickness of the workpiece.

The application provides a large-section differential pipe liquid filling composite forming method and device, relates to the technical field of metal pipe forming, and the large-section differential pipe liquid filling composite forming method comprises the following steps: step one, plate material blank is subjected to liquid filling deep drawing forming to form a conical shell; step two, the closed end of the conical shell is cut to obtain a conical pipe with open ends; and step three, the conical pipe is subjected to liquid filling pressure forming to obtain a target pipe. The application further provides a large-section differential pipe liquid filling composite forming device. The large-section differential pipe liquid filling composite forming method and device provided by the application can improve the size precision and quality of the pipe.

The present invention is intended to provide a can manufacturing method and a can manufacturing system that can supply cans at low cost and with a short delivery time. A can manufacturing method by deep drawing processing using a press machine, wherein a pre-step press machine, a post-step press machine, and a conveyor configured to convey a blank from the pre-step press machine to the post-step press machine are provided, the can manufacturing method including: first pressing for blank processing on a metal plate and coining processing to reduce a plate thickness of the blank by using the pre-step press machine; conveying the blank from the pre-step press machine to the post-step press machine; and second pressing for drawing processing and / or drawing and ironing processing to form a rectangular can by using the post-step press machine.

This invention discloses a water-soluble punching and shearing oil, comprising the following components in 100 parts by weight: 20.0-35.0 parts rust inhibitor; 10.0-20.0 parts lubricant; 3.0-10.0 parts surfactant; 0.5-3.5 parts bactericide and mildew inhibitor; 0.5-2.0 parts other additives; and the balance being deionized water. This punching and shearing oil can be used in various sheet metal deep drawing and punching processes. It can be diluted for use, effectively reducing users' oil costs. Simultaneously, it avoids oil mist and VOC problems caused by using oily products in the workshop, thus purifying the workshop operating environment. Parts punched and sheared using this invention have smooth surfaces, complete cuts, good gloss, and are burr-free. Processed parts are easy to clean or require no cleaning, significantly saving on overall costs such as materials, water resources, and labor.

The invention discloses an insulating multi-layer Clip applied to a power module and a preparation method of the insulating multi-layer Clip, aging and layering risks of a traditional adhesive are eliminated through an adhesive-free laminated structure of the insulating multi-layer Clip, heat resistance, chemical resistance and long-term reliability of a product are improved, and meanwhile, an adhesive layer is omitted, so that the overall thickness of the product is thinner and more flexible; through the connection of deep drawing forming and the surface silver / nickel plating process, the three-dimensional assembly requirement of the insulation multi-layer Clip is met, and the conductive performance and the contact reliability of the circuit are improved. Multiple alignment errors are avoided through a one-time pressing process, the interlayer alignment precision is extremely high, the thickness of the dielectric layer is uniform, and the electrical performance consistency is good; the size precision and the circuit integrity of the product are guaranteed through the working procedures of drilling, etching, laser cutting and the like in combination with the precise temperature control and positioning technology. The method can be applied to the technical field of chip packaging.

The invention provides a hydrodynamic deep drawing forming die and method for a step-shaped part, and relates to the technical field of plate forming. The forming die comprises a male die, an edge pressing part, a female die, a left supporting block capable of moving up and down and a right supporting block capable of moving up and down; the left supporting block is arranged at the left end of the lower surface of the upper step of the male die, the right supporting block is arranged at the right end of the lower surface of the upper step of the male die, a hollow part is defined by the left supporting block and the right supporting block, and the inner wall of the hollow part is attached to the side wall of the lower step of the male die; the outer wall contour of the hollow part coincides with the downward projection of the side wall contour of the upper step of the male die; an inner cavity of the female die is composed of an upper concave cavity and a lower concave cavity, and a fluid channel communicated with the outside is formed in the inner wall of the lower concave cavity. When the forming die provided by the invention is used for forming the stepped part, excessive thinning of a plate and a plate suspension area corresponding to the two layers of stepped fillets of the convex die can be avoided, and wrinkling of the plate suspension area is avoided.

The invention discloses an aerosol can processing device, and belongs to the technical field of aerosol can processing, the aerosol can processing device comprises an elastic ejection mechanism, the elastic ejection mechanism is arranged on a lower pressing seat, and the ejection end of the elastic ejection mechanism extends upwards to eject out an upper top cover tightly attached to a female die. According to the aerosol can machining device, the male die and the female die jointly form the die assembly, in the process of curling an upper top cover, the upper top cover formed through deep stamping or an original metal plate needs to be precisely positioned into the female die of the lower pressing base, it is ensured that the center of a workpiece is completely aligned with a die cavity, and therefore the machining efficiency is improved. Then the upper pressing seat is driven by an equipment operating mechanism to vertically press downwards along the guide columns, so that the male die and the female die are accurately butted to form a die cavity for forming a hemming section, in the die opening stage, the male die and the female die are separated under the action of a separating mechanism, and an upper top cover tightly attached to the female die is ejected out through the ejection end of an elastic ejection mechanism under the action of the elastic ejection mechanism; according to the device, the product taking efficiency is remarkably improved.

To provide a deep drawing package that exhibits stable peel strength when sealed within a temperature range of 120 to 160°C, even if a thermal history is applied to a bottom material during deep drawing molding.SOLUTION: A deep drawing package includes a top material and a bottom material. The top material is a composite film in which a sealant layer, an adjacent layer, and an outer layer are laminated in this order. The sealant layer is made of a composition containing glycol-modified polyethylene terephthalate (PET-G). The adjacent layer is made of a modified polyolefin resin containing at least one of acid-modified polyethylene, ethylene-acrylic ester copolymer, and ethylene-acrylic ester copolymer-maleic anhydride copolymer. The bottom material has a recessed part formed by deep drawing and includes PET-G in a layer facing the top material. The deep drawing package is sealed such that the sealant layer faces the bottom material, and the package has easy-to-open properties.SELECTED DRAWING: None

To provide an Al-Fe-Mn-based aluminum alloy sheet that has excellent hardness and formability, and a predetermined earing ratio.SOLUTION: An aluminum alloy sheet for drawing process contains Fe by 1.05 to 1.50%, Mn by 0.40% or less, Ti by 0.002 to 0.150%, and B by less than 0.05% in mass%, and the remainder consists of Al and impurities. The alloy sheet has a component composition regulated to Si: less than 0.40%, Cu: less than 0.03%, Mg: less than 0.05%, and V: less than 0.03% as impurities, and has the tensile strength of 170 MPa or less, the earing ratio of -2% or more and 2% or less.SELECTED DRAWING: None

The invention discloses a preparation method for improving the plastic strain ratio of 210MPa-grade high-strength IF steel. The preparation method comprises the following steps: 1) converter production; 2) RH furnace production; 3) continuous casting production; 4) heating the casting blank; (5) finish rolling; 6) a continuous annealing process; the alloy comprises the following chemical components in percentage by weight: less than or equal to 0.0030% of C; s : 0.05 to 0.15%; 0.50% to 0.80% of Mn; 0.055 to 0.080 percent of P (phosphorus); s is less than or equal to 0.010%; the content of Al < t > is 0.015 to 0.060 percent; t is 0.020% to 0.050%; 0.020% to 0.050% of Nb; n is less than or equal to 0.0040%, and B is 0.0004-0.0015%; and the balance of iron and impurities. By reasonably optimizing the process, the r value of the 210Mpa-grade high-strength IF steel is increased while the strength performance of the 210Mpa-grade high-strength IF steel meets the standard requirement, so that the deep drawability of the steel grade is improved.

This invention provides a die device for trimming within the blanking surface using a precision blanking process. The die device includes: an upper die; a lower die; a backing plate connected to the upper die at its upper part; a punch placed on the lower die, with its upper surface facing the lower surface of the backing plate; a first buffer ring, with its upper surface facing the lower surface of the upper die; and a second buffer ring, with its upper surface facing the lower surface of the backing plate. The second buffer ring is in contact with the first buffer ring during the deep drawing process and is in contact with the lower die upon completion of the deep drawing process.