17 results about "Rolling mill" patented technology

The invention relates to a cold rolling mill with a feeding device and a discharging device. The cold rolling mill includes a cold rolling mill body, a feeding frame and a discharging frame are arranged at the front end and the rear end of the cold-rolling mill correspondingly. The feeding frame is provided with a discharging platform, a side plate A is arranged on one side of the discharging platform, an obliquely-arranged slide carriage is arranged on the other side of the discharging platform, a fixing plate is arranged at the lower end of the slide carriage, a plurality of supports are arranged on the side, close to the fixing plate, of the discharging platform side by side, and a roller is connected between each support and the fixing plate. The discharging frame is provided with a material receiving platform, the material receiving platform is obliquely arranged in the mode that one side is high and the other side is low, a side plate B is arranged on the high side, and a material receiving frame is arranged on the low side; the cold rolling mill is simple in structure and convenient to manufacture, materials can be rapidly and conveniently placed in the cold rolling mill tobe rolled, the rolled materials automatically enter the material receiving frame to be stacked, the labor cost is reduced, the labor intensity is relieved, and the production efficiency is improved.

The invention provides a short-process preparation method of a Ti-Al-V-Fe alloy seamless tube. The method is characterized by comprising the following steps: 1) preparing materials; 2) mixing the materials and briquetting; 3) putting the materials into an electron beam gun EB furnace; 4) performing vacuum melting to obtain a Ti-Al-V-Fe alloy round ingot; 5) drilling centering holes in two ends of the ingot, and feeding the ingot into a two-roller skew rolling mill for skew rolling and perforating; 6), feeding the ingot to a three-roller continuous rolling machine for continuous rolling; 7) carrying out heating and sizing to obtain a seamless tube; 8) carrying out annealing treatment to obtain the Ti-Al-V-Fe alloy seamless tube. The Ti-Al-V-Fe alloy seamless tube has a uniform metallographic structure and are few in high-density and low-density inclusions and high in purity, the technological process is short, the mechanical property is superior to that of the prior art, the comprehensive yield is increased to 85% or above, the production cost is reduced by 20%-30%, and obvious market application prospects are achieved.

The invention relates to a steel rail production process with limited participation of a universal mill and belongs to the technical field of steel rail rolling in metallurgical industry. The steel rail production process comprises the following steps of forming a universal UR2 hole pattern between a product UF hole pattern and an edge rolling EF hole pattern; carrying out tandem rolling on a rolled piece among universal UR, edge rolling EF and universal UR2; arranging product UF independently; and carrying out head-tripping rolling. By adopting a production scheme of limited participation ofrolling under soft reduction when the hole pattern of UR2 is designed, the steel rail rolled piece subjected to product UF is controlled precisely in a rail head height direction, so that the dimensional fluctuation of a steel rail product in the height direction is solved effectively and the operating smoothness of a high speed rail is improved.

The invention discloses a four-row cylindrical roller bearing special for a steel rolling mill. The four-row cylindrical roller bearing is characterized by consisting of an outer ring, two holders, four rows of cylindrical rollers, an inner ring and an oil inlet hole, wherein the outer ring and the inner ring are provided with a raceway respectively; the cylindrical rollers are positioned between the two raceways, and roll between tracks of the outer ring and the inner ring; the holders are arranged between the inner ring and the outer ring; the oil inlet hole is formed in the end face of the outer ring; and two rows of cylindrical rollers are arranged in each holder.

The invention relates to a rolling process of a 2 mm corrosion-resistant hot-rolled coiled plate. The rolling process comprises the following steps: detecting the flatness of a first position, a second position, a third position and a fourth position of a metal plate by utilizing a flatness detector to generate a real-time flatness matrix P (P1, P2, P3, P4), wherein the first position is arrangedbetween a first finishing mill and a second finishing mill, the second position is arranged between the second finishing mill and a third finishing mill, the third position is arranged between the third finishing mill and a fourth finishing mill, and the fourth position is arranged between the fourth finishing mill and a fifth finishing mill; and according to changes of the first real-time flatness and the second real-time flatness, adjusting the roller rotating speed and the rotating speed difference of the fourth finishing mill and the fifth finishing mill. The follow-up rotating speed and rotating speed difference of the fourth finishing mill and the fifth finishing mill are adjusted according to the changes of the flatness of the first position and the second position, the metal plateswith the flatness not meeting the requirement are corrected in time, real-time feedback is conducted, and accurate adjustment of the flatness of the metal plates is achieved.

The invention discloses a load-bias free four row roller bearing for a rolling mill, which is provided with double outer rings (1) and an inner ring (2); and two groups of retainers (6) are arranged between the outer rings (1) and the inner ring (2), and each retainer (6) is evenly distributed with two rows of cylindrical rollers along the circumferential direction. The four row roller bearing is characterized in that two end faces of the outer rings (1) are provided with side retainer rings (11). The two end faces of the outer rings are provided with the side retainer rings, so that the radial load and axial load of the bearing are separately borne, and load-bias does not exist; and the length of two rows of cylindrical rollers is increased, so that the contact area of a raceway is increased, the radial load bearing capacity is increased correspondingly, and the service life is prolonged.

The invention provides a method for calculating the elastic deformation of a roll system of a plate and strip rolling mill, which comprises the following steps of: 1, segmenting a working roll, a middle roll and a supporting roll, and discretizing corresponding variables; 2, uniformly mapping or superposing preset convexity to each discrete point, calculating initial inter-roller contact force distribution in the step 3, flattening the center, and inclining a flattening area; 4, performing inner-layer iteration; step 5, outputting flattening and inter-roller contact force if the pressing forceand the inter-roller contact force are balanced; 6, calculating deflection of each discrete point; calculating deflection of each discrete point based on a bending moment direct numerical value; 7, calculating an inter-roller flattening increment dKi; 8, judging whether the flattening increment is smaller than a threshold value or not; and 9, outputting flattening distribution between rollers, contact force between the rollers and roller gap shape data. By applying the embodiment of the invention, the convergence of calculation is improved, the calculation time consumption is reduced, and thecalculation amount is reduced.

The invention belongs to the technical field of wire mill accessories, and particularly relates to a quick-change type multi-lip sealing component. According to the technical scheme, the sealing component comprises a sealing mechanism, an upper sealing sliding ring and a lower sealing sliding ring, wherein the sealing mechanism is provided with an elastic sealing ring made of rubber and plastic materials arranged in an eccentric disc in a sleeving mode, and the upper sealing sliding ring and the lower sealing sliding ring are arranged on the two sides of the sealing mechanism in a sleeving mode. An inner buckling edge is arranged at the end of a ring cylinder forming the upper sealing sliding ring. A ring capable of throwing cooling water outwards is arranged on the outer circle of the inner buckling edge. According to the system, it can be basically guaranteed that the cooling water cannot enter a sealing structure formed by the upper sealing sliding ring and the sealing ring, and theisolation sealing effect between the cooling water and lubricating oil of a high-speed wire mill is improved.

The invention discloses a single-stand reversible rolling process for an ultrathin wide red copper belt, particularly relates to the technical field of reversible rolling of red copper belts. The technical scheme is that the single-stand reversible rolling process comprises the following specific steps that S1, a copper raw material is put into an intermediate frequency furnace for smelting until a liquid state is reached; S2, the obtained smelting liquid forms a casting blank with a certain section shape and a certain size specification through a continuous casting machine, and the casting blank is cooled through water till the temperature of the casting blank is reduced to 20-30 DEG C; S3, the casting blank is put into a forging press to be forged and pressed, and a red copper plate material is obtained; and S4, the red copper plate material is put into water, and the red copper plate material is cleaned. The single-stand reversible rolling process has the beneficial effects that the red copper plate material is rolled for four times through a rolling mill, then the red copper belt is reversibly rolled through a reversible rolling mill, therefore the thickness of the red copper belt can be reduced, the use range of the red copper belt can be widened, and the tensile strength and smoothness of the red copper belt can be improved.

The invention relates to a lithium battery pole piece rolling mill pump control roll bending hydraulic system and a roll bending device. Roll bending cylinders are arranged at the left and right endsof upper and lower bearing seats of the roll bending device, a set of pump control roll bending hydraulic system is arranged on the outer side of each roll bending cylinder, and a roll bending pressure instruction is given to a controller; and the controller outputs a rotating speed signal to control a servo motor to drive a two-way constant displacement pump to rotate to build up pressure, a first oil port of the two-way constant displacement pump sucks oil from rodless cavities of the roll bending cylinders through a low-pressure hole channel and a low-pressure pipeline, and a second oil port of the two-way constant displacement pump presses oil to rod cavities of the roll bending cylinders through a high-pressure hole channel and a high-pressure pipeline. Hydraulic roll bending force generated by the roll bending cylinders enables a roll to generate additional bending so as to compensate for roll gap transverse spacing deviation and improve the consistency of the pole piece rollingthickness. High-precision rolling of battery pole pieces can be achieved, the installation, operation and maintenance cost of the system is reduced, the power-to-weight ratio is increased, and the reliability is improved.

The invention discloses an online flushing device for a hot rolling mill and belongs to the technical field of smelting equipment. The online flushing device comprises spray units arranged at the flushing part of the hot rolling mill, wherein the spray units are connected with a water supply unit through booster pumps; each spray unit comprise two parallelly-arranged rails and spray beams; the spray beams travel on the rails through racks; nozzles are arranged on the spray beams; traveling air cylinders used for driving the racks to travel are mounted on the rails; and transmission gear groups used for driving the spray beams to rotate are arranged on the racks. By adoption of the online flushing device disclosed by the invention, the problem that in the prior art, the high positions of a hot rolling mill are hard to flush sufficiently, the flushing time is long, and the flushing efficiency is low can be solved.

The invention discloses a high-speed steel bar cold-rolling mill, and relates to the technical field of cold-rolling mill equipment. The high-speed steel bar cold-rolling mill comprises a feeding mechanism, conveying mechanisms, four cold rolling mechanisms and a cold rolling supporting frame; the feeding mechanism is horizontally arranged; the cold rolling supporting frame is vertically arranged at the side end of the feeding mechanism; the four cold rolling mechanisms are sequentially installed on the cold rolling supporting frame in a linear mode; the distances between the rollers in the four cold rolling mechanisms are gradually decreased from bottom to top, and the conveying mechanisms are distributed on the two sides of the cold rolling supporting frame. Steel bars are driven by the conveying mechanisms to pass through the multiple cold rolling mechanisms, the cold rolling mechanisms are arranged to be the up-down mechanisms, and therefore the occupied area of the steel bar cold rolling equipment is reduced.