469results about "Work lubrication devices" patented technology

These additives are represented by the following general formula:L-Y-Sin which L designates a hydrocarbon radical which serves as lubricating segment; S designates an oligomer segment which serves as solvating segment of metallic salts and Y designates a chemical bond which joins the hydrocarbon radical and the oligomer segment. With these additives there is no more need to subsequently wash the surface of laminated lithium.

An apparatus for and method of manufacturing lithium or lithium alloy anodes for electrochemical cells by a lamination process wherein a lithium or lithium alloy sheet is reduced into a thin lithium or lithium alloy film. The method and apparatus provide adjustments of the profile defined by the meeting surfaces of a pair of working rollers to compensate for thermal dilation of the working rollers or to compensate for irregular thickness of the lithium or lithium alloy sheet to control the shape and profile of the lithium or lithium alloy film being laminated.

The invention discloses a method for setting concentration of emulsion in rolling of a five-rack cold continuous rolling unit extremely thin band. The method includes the following steps: (1) collecting characteristic parameters of main devices of a unit and to-be-rolled bands, main rolling process parameters and process lubricating system parameters, (2) defining related process parameters, (3) computing roll bending force and the roll channeling amount, (4) assigning related search process parameters, (6) computing concentration process parameters, (6) computing the search process speed of the highest rolling speed, (7) computing friction coefficients of various racks under the current condition, (8) computing rolling force, rolling power, slip factors, heat slip damage indexes and vibration coefficients of the various racks under the current condition, (9) computing heat convexity degrees of working rollers of the various racks, (10) computing an exit plate shape and the pressing width, and (11) obtaining and outputting the optimum proportion concentration. The steps are executed by a computer. According to the method, the rolling speed can be quickened, the rolling efficiency can be guaranteed, slip, heat slip damage and vibration are avoided, and it is guaranteed that the exit plate shape of the final rack and the pressing width of the roller ends of the working rollers are the smallest.

The present invention provides a metal sheet rolling method of rolling a metal sheet with a pair of rolls, as well as a rolled sheet manufactured by the metal sheet rolling method. In the metal sheet rolling method, respective interfaces between the pair of rolls and the metal sheet have mutually different frictions. Additionally at least one of the interfaces may be lubricated by a procedure other than lubrication by coating of a liquid lubricant agent. Alternatively at least one of the interfaces may be subjected to surface treatment by a procedure other than lubrication, or otherwise the pair of rolls may be made of mutually different materials.

The invention discloses a cold rolling method for preventing high-silicon strip steel from being broken. The Si content of the high-silicon strip steel is more than or equal to 2.3 percent by weight; when cold rolling is started, the temperature of strip steel at an inlet is higher than 45 DEG C; and in a cold rolling process, an emulsion is sprayed onto the strip steel, the emulsion flow at the inlet along a rolling direction is smaller than or equal to 3,500 liters per minute, and the emulsion flow at an outlet along the rolling direction is 1,500-4,000 liters percent minute, so that the temperature of the strip steel is over 45 DEG C on the premise of ensuring process lubricating. The cold rolling method disclosed by the invention has remarkable effects of reducing strip breakage on a head and a tail, increasing rolled piece yield, increasing production efficiency, and the like, and has a remarkable economic benefit.

A method of removing iron oxide scale and galvanizing sheet metal bonds galvanizing zinc to a wustite layer of the sheet metal. The iron oxide scale on the sheet metal generally comprises three layers prior to surface conditioning: a wustite layer, a magnetite layer, and a hematite layer. The wustite layer is bonded to a base metal substrate of the sheet metal. The magnetite layer is bonded to the wustite layer, and the hematite layer is bonded to the magnetite layer. Conditioning the surface of the sheet metal includes bringing a surface conditioning member into engagement with the surface of the sheet metal in a manner to remove substantially all of the hematite and magnetite layers from the surface, and in a manner to remove some but not all of the wustite layer from the surface. The portion of the wustite layer that remains bonded to the base metal substrate of the sheet metal protects the surface from oxidation until the surface is galvanized.

The invention relates to a method for lubricating and cooling rollers (3,4,5,6) and metal strips (2) on rolling in particular, on cold rolling of metal strips (2), wherein, on the inlet side (7a) a minimal amount of pure lubricant (9) without a high water content is continuously supplied in an online controlled manner with a controlled viscosity and lubricity depending on a number of process data measurements (23) by means of a physical computer model (22) and the equivalent process data measurements (23) from the outlet side (8a) are also used online by the physical computer model (22).

The invention relates to a method and a device for cooling and / or lubricating rollers, in particular the working rollers (2, 3) on a rolling stand and a rolled strip (1), rolled between the above rollers and transported onwards, using water in the form of spray jets (4, 5) as cooling medium and oil, oil / air mix, oil / water mix, oil / air / water mix or grease mixtures as lubricant. In order to improve the lubricating and cooling effects, a combined application of super-cooling the strip and roller surfaces and roller lubrication on the input side of the stand is disclosed, in which both media, water and lubricant, are separately fed to the rollers (2, 3) and the rolled strip and applied to the roller surface at different application points. Separate reservoirs for water and lubricant and separate lines to the spraying bar (11) for water and the spraying bar (12) for the lubricant are provided.

These additives are represented by the following general formula:in which L designates a hydrocarbon radical which serves as lubricating segment; S designates an oligomer segment which serves as solvating segment of metallic salts and Y designates a chemical bond which joins the hydrocarbon radical and the oligomer segment. With these additives there is no more need to subsequently wash the surface of laminated lithium.

The invention relates to a method for lubricating rolls, in particular for lubricating a rolling nip in rolling stands for rolled strips. According to the invention, said lubrication takes place using an oil-in-water dispersion whilst maintaining both a predetermined blend characteristic and a volumetric flow of the dispersion. The dispersion is prepared in the form of a homogeneous blend in a mixer (1) using adjustable quantities of water and oil. The dispersion is supplied to various spray zones (Zi) for a distribution (Bi) that is variable in width. Said method for roll lubrication can be improved by the allocation of at least one row of nozzles (Di) to each spray zone (Zi), which has a corresponding spray range width (Bi), each nozzle being controlled by at least one relay valve (Si).

The invention relates to an emulsified liquid process optimization method taking oil consumption control as a target by a secondary cold rolling unit. The method comprises the following steps executed by a computer; (A) collecting a primary equipment process parameter, a lubricating characteristic parameter and a frictional characteristic parameter of the secondary cold rolling unit; (B) collecting a preset process parameter of to-be-produced strip steel of the secondary cold rolling unit; (C) calculating a frictional coefficient target value [mu]t needed to reach a rolling pressure target value Pt; (D) calculating a deformation region oil film thickness target value xit needed to reach the frictional coefficient target value [mu]t; (E) calculating a separated out oil film thickness target value xipt needed to reach the deformation region oil film thickness target value xit; and (F) calculating the optimum combination (Qy and Cy) of flow and concentration f an emulsified liquid, wherein the secondary cold rolling unit meets the demand on the lubricating performance and the oil consumption is the minimum. By comprehensively optimizing concentration and flow of the emulsified liquid, the minimum consumption of rolling oil is achieved, and the field production cost of the secondary cold rolling unit and the sewage treatment cost of the emulsified liquid are lowered.

The present invention provides a method of supplying lubrication oil in cold rolling for stable rolling without heat scratches or slip and realizing high productivity and improvement of the specific consumption of lubrication oil, that is, a method of supplying lubrication oil in cold rolling for lubricating rolling in cold tandem rolling of metal sheet by supplying a predetermined kind of emulsion lubrication oil comprised of a mixture of rolling oil and water at the rolling stand inlet side from nozzles, the method of supplying lubrication oil in cold rolling characterized by measuring or estimating the pressure in the lubrication nozzle pipe (lubrication nozzle pressure), controlling the lubrication nozzle pressure of any rolling stand where lubrication is liable to become excessive with the predetermined emulsion lubrication oil to 0.5 MPa or more, and, while doing so, supplying the lubrication oil to the roll bite inlet of the stand by direct injection.

The invention discloses a method for producing an ultra-thin metal lithium strip. The method includes the following steps that (1) the surface of a base material is coated with a lubricating agent; (2) rolling is conducted; (3) edge cutting is performed; (4) oil stains on the surface of the lithium strip are cleaned; and (5) the lithium strip is subjected to air drying, and surface impurities are removed. By the adoption of the method, the rolling technology is adopted, the base material is subjected to surface treatment before rolling, cleaning and air drying are carried out after rolling, the thickness of the obtained ultra-thin metal lithium battery strip can reach 0.02mm or below, and the lithium strip is mainly applied to high-capacity secondary batteries like a lithium-sulfur battery, a lithium air battery, a lithium negative electrode full-solid-state battery, a lithium polymer battery and other secondary batteries using lithium as the negative electrode; and automatic coiling production can be achieved, small-batch slicing production can also be conducted, production efficiency can be greatly improved, product quality is well guaranteed, and a foundation is laid for research, development and follow-up production of the high-capacity lithium ion secondary batteries.

The invention provides ultrathin uncoated tinplate base high elongation percentage wet leveling technological equipment and a method. By arranging a leveling liquid system taking a low-concentration emulsion as a medium in a two-stand leveling unit, the wet leveling elongation percentage of strip steel is raised substantially; by reasonably arranging a splashing prevention device, the splashing of leveling liquid is effectively prevented; equipped with an alkali liquor washing system and a strip steel cleaning system, the surface of the strip steel is subjected to alkali liquor washing and soft water cleaning, so that the leveling liquid remained on the surface of the strip steel is cleaned, and spots of the leveling liquid are effectively controlled; by adopting a curtain wall air knife type air knife blowing system, high-output and low-noise efficient blowing is realized; and equipped with a hot air drying system, surface cleanness and dryness of the strip steel are guaranteed. By adopting the leveling liquid system taking the low-concentration emulsion with the concentration being 0.5-1.5% as the medium, the elongation percentage and the antirust capability of the strip steel are raised and improved significantly, steel plate deformation is improved substantially and the elongation percentage can reach 5-10%, the high elongation percentage wet leveling can repair and cover a part of surface defects, and thus the plate surface quality and the product overall quality are improved.

The invention discloses an aluminum alloy deep cooling variable-thickness rolling process. An aluminum alloy plate strip serves as a raw material, and is machined into a piece-shaped material with a certain size, the material is placed into liquid nitrogen to be cooled, after cooling, deep cooling variable-thickness rolling is carried out, and high-performance aluminum alloy variable-thickness strip is produced. According to the process, ultra-low temperature plastic deformation is used, the strength and the toughness of the aluminum alloy are synchronously improved, at the same time, variable-thickness rolling is used, and a high-strength toughness aluminum alloy thickness difference plate capable of being directly used for car parts can be prepared.

The invention discloses a copper belt production technology for a new energy automobile connector, and belongs to the technical field of the copper plate belt production technology. The technology comprises the first step of cast ingot smelting, the second step of face milling, the third step of hot rolling, the fourth step of rough rolling, the fifth step of one-time annealing, the sixth step of one-time cleaning, the seventh step of intermediate rolling, the eighth step of two-time annealing, the ninth step of two-time cleaning, the tenth step of intermediate rolling, the eleventh step of three-time annealing, the twelfth step of three-time cleaning, the thirteenth step of finish rolling, the fourteenth step of four-time cleaning and the fifteenth step of leveling, wherein in the fourth step of rough rolling, after rough rolling, the regulated thickness of a belt roll is 2.5 mm. By means of the technical scheme, the copper belt annealing technology quality and the copper belt surface quality can be improved, and therefore the workshop cost can be reduced, and the productive profit can be increased.

The present invention provides a method for supplying lubricant to various kinds of steel sheets with different qualities in cold rolling without any restrictions, such as lubricant supplying apparatus or lubrication conditions. This method comprises storing two or more kinds of lubricant such as A and B, having different compositions, selecting one lubricant or a mixture lubricant of the above A and B in accordance with the friction coefficient between the steel sheet to be cold rolled and a work-rolls, and supplying an emulsion comprising a mixture of the lubricant A and / or B and heated water.

Disclosed is a lubricant composition for plastic working which is excellent in workability, degreasing property and working conditions. The lubricant composition is suitably used in fields of plastic working, particularly in fields of warm press forming, of various metal materials, especially of magnesium-base or aluminum-base nonferrous metal materials. Also disclosed are a warm forming process using such a lubricant composition and a method for producing a warm press-formed metal material. The lubricant composition for plastic working contains a solid lubricant and (B) at least one selected from (i) calcium sulfonates and (ii) non-volatile compounds, and the mass ratio between the component (A) and the component (B) in the composition is from 90:10 to 10:90.

The invention discloses a production technology for preventing 'core collapse' defect of ultrathin steel coil. The production technology comprises: uncoiling a raw material steel coil by an uncoiling machine, clamping the head portion of the band steel by a clamping jaw of a recoiling machine, and coiling 1.5 circles of the band steel, then rolling the band steel for 5 to 7 times, rolling the band steel of 2.5 to 3.0 mm thick into a thin band steel whose thickness is less than 0.3 mm, and then coiling the finished steel coil by the recoiling machine, putting the finished steel coil into a warehouse after coil discharging, weighing, and bundling. A high tension start technology is used for coiling the finished coils, the core portion start tension is increased to 1.6 to 2 times of the set coiling tension stress, then the core portion start tension is gradually reduced and returned to the set tension stress of 70 N / mm2 when the outer diameter of the steel coil is 800 mm; the clamping jaw is reversed after the coiling block is shrank for 2 degrees during the coil discharging. The production technology for preventing 'core collapse' defect of ultrathin steel coil employing a hard core tension cold rolling method without increasing the number of coiling circles is able to saved the cost of manufacturing sleeves and the cost of transportation, thereby effectively removing the 'core collapse' defect of ultrathin steel coil, and increasing the production rhythm and efficiency.

The present invention provides a system for supplying a lubricant necessary for efficiently manufacturing high-quality seamless pipes or tubes in a piercing mill, an apparatus for manufacturing seamless pipes or tubes having the supply system, and seamless pipes or tubes manufacturing method. The system for supplying a lubricant has a storage tank of the lubricant, a plumbing extending from the storage tank to a position near disk rolls, a nozzle provided at the tip of the plumbing, a device for switching flow direction provided in some midpoint of the plumbing, a plumbing extending from the device for switching flow direction to the storage tank, and a device for releasing pressure in a plumbing, provided between the switching device and the nozzle.

The invention provides a production method of aluminum and aluminum alloy plates and strips for a new energy power battery case. The method comprises the following steps of aluminum melt preparing, continuous casting and rolling, homogenizing annealing, cold rolling, intermediate annealing or final annealing. The method can be used for producing 3003 alloy plate and strip products in the states of"O", "H12" and "H14" for the new energy power battery case, and the strength and the yield ratio of material of the obtained products can be effectively enhanced.

The invention disclose a rolling method for single-face periodically variable thickness plate strip materials, and belongs to the technical field of metal rolling. According to the method, double-strip synchronous variable-thickness ply rolling is conducted through two uncoilers and two coilers, that is, the two uncoilers and the two coilers are arranged on two sides of a rolling mill correspondingly. The rolling method includes the specific steps that (1) feeding is carried out, specifically, upper-layer raw plate strip materials and lower-layer raw plate strip materials are installed on the corresponding uncoilers; (2) strip penetrating is conducted, specifically, the upper-layer raw plate strip materials and the lower-layer raw plate strip materials are welded to guide strips of the corresponding coilers separately through guide strip movement and welding, so that strip penetrating is completed; (3) variable-thickness rolling is conducted, specifically, setting of rolling parameters and control over alignment, speed, thickness, tension and the like in the rolling process are included; and (4) the single-face periodically variable thickness plate strip materials are obtained and moved out. By the adoption of the method, rolling of the single-face periodically variable thickness plate strip materials and double-face periodically variable thickness plate strip materials can be realized, different production requirements are met, the rolling efficiency is greatly improved, and the production cost is lowered.

The invention discloses a preparing method for a large-size beta-gamma TiAl alloy plate and relates to a preparing method for the TiAl alloy plate. According to the purpose, the problems that due to the fact that a TiAl alloy hot working window is narrow, the plate is likely to be cracked and is hardly formed in the large-size TiAl alloy plate preparing process due to cooling in the non-isothermal rolling process, and secondary cracking of the plate is caused in the machining sheath removing process are solved. The method includes the steps that firstly, a TiAl alloy blank is prepared; secondly, a sheath is machined; thirdly, a glass lubricating agent is sprayed; fourthly, the TiAl alloy blank is subjected to sealing; fifthly; a high-temperature rolling stage is conducted; sixthly, residual stress is removed through homogenizing heat treatment; and seventhly, the sheath is removed through machining, and the large-size beta-gamma TiAl alloy plate is obtained. The preparing method is suitable for preparing of the large-size beta-gamma TiAl alloy plate.

The invention discloses a method for reducing the emulsification concentration of the rolling mill emulsion system of a five-stand continuous rolling mill. The method includes: transforming the existing five-stand continuous rolling mill mill emulsion system, between No. 1 emulsion tank, No. 2 emulsion tank and No. 3 emulsion tank of the five-stand continuous rolling mill emulsion system In the production process, the low-concentration emulsion in the No. 3 emulsion tank is realized by adding rolling oil, and the desalted water that meets the preset temperature requirements is prepared in the No. 2 emulsion tank; The concentration difference between the pump group of the system and the high-concentration and low-concentration emulsion directly realizes the channeling between the emulsion tanks and realizes the change of the emulsion concentration. The method can effectively save the amount of compressed air, and the operation is convenient, and the emulsion does not need to be discharged, which saves the cost.

The invention relates to a cold rolling method for high-silicon steel with the Si content equal to or higher than 2.5%. The cold rolling method includes uncoiling blank steel coils, then directly loading and rolling the blank steel coils by the aid of six-roller rolling mills and carrying out cold rolling by the aid of single-cold-rolling processes or double-cold-rolling processes; carrying out technological lubrication and cooling by means of emulsion spraying in rolling procedures; carrying out reeling after rolling is completed. The flow of emulsion on inlet sides of pass is 1000-6000 L / min, flow of emulsion on outlet sides of the pass is completely cut off, and the rolling deformation temperatures of the pass are 100-300 DEG C under the control. The cold rolling method has the advantages that cold rolling can be carried out on the high-silicon steel with the Si content equal to or higher than 2.5% by the aid of the conventional six-roller rolling mills and can be continuously rolled by the aid of the six-roller rolling mills without frequent roller change, and accordingly the production efficiency can be improved by 30%; rolling deformation zones of the six-roller rolling millsare long in cold rolling procedures, the six-roller rolling mills are low in deformation speed, dramatic plastic deformation can be prevented, rolled pieces are free of strip shape quality defect, and products are excellent in surface quality.

The invention discloses an improved automatic lubricant cleaning device for a hub forging die. The improved automatic lubricant cleaning device is composed of a hydraulic lifting cylinder, a limit block, a hinge A, a hydraulic piston rod, a fixed connection rod, a hinge shaft, a connection plate, a hydraulic cylinder, a hinge B and the like. The improved automatic lubricant cleaning device disclosed by the invention is capable of increasing labor efficiency and lowering production intensity, and high in universality; and corresponding cleaning scraping plates can be arranged according to surface shapes of different hub dies, and changed through a universal bolt connector, so that an equipment cost is saved.

The invention relates to a rolling process for a metal strip (1) having width (b), wherein the metal strip (1) is rolled in at least one rolling stand (2), wherein an amount of lubricant is applied and spread on the width (b) of the metal strip (1), wherein the lubrication process on the width (b) of the metal strip is detected behind the rolling stand (2) and used for regulating the amount and / or distribution of the lubricant (5) and / or at least one rolling parameter (v).

The invention relates to foil rolling preparation of 0.005 mm ultra-thin aluminum foil, in particular to a four-pass rolling method for aluminum foil with the thickness being 0.005 mm. As for a foil rolling preparation method, by adjusting process oils of a foil rolling mill and optimizing foil rolling pass distribution, original five-pass foil rolling is reduced to four-pass foil rolling, so as to obtain the aluminum foil with the thickness being 0.005 mm. According to the four-pass rolling method for the aluminum foil with the thickness being 0.005 mm, the number of foil rolling passes is decreased, and the overall efficiency of foil rolling is improved by 15% or above.