633results about "Rolls" patented technology

The invention provides rolling equipment, a current collector, a preparation method of the current collector, a pole piece, a battery and a device. A rolling device comprises a roller mechanism, a flow control mechanism and a power mechanism. The roller mechanism comprises at least two opposite rollers arranged at intervals and a flow control mechanism. The flow control mechanism is used for independently controlling the flow of the cooling medium in each cooling channel; the power mechanism is used for driving at least one roller to rotate. According to the rolling equipment, the roller diameter of the roller can be simply, effectively and flexibly adjusted by controlling the flow, so that the thickness of a rolled membrane material is adjusted, for example, a current collector with a large thickness in a tab area is prepared, the current collector is used for preparing an electrode pole piece, the problem of belt breakage in mass production of the electrode pole piece can be solved, and the production efficiency of the electrode pole piece is improved. And the yield of electrode plate production is improved.

Generally described, one or more aspects of the present disclosure relate to methods, systems, and devices related to pre-straining bare lanes of a multilane electrode with a system for calendering a multilane electrode including a pre-strain roll device including a plurality of pre-strain rollers and a pressure roller forming a pre-strain nib and a calender roll device comprising a pair of calendering rollers forming a calendering nip positioned downstream from the pre-strain roll device.

The invention relates to the technical field of high-speed cable shielding materials, and discloses a manufacturing method of rolled copper foil for high-speed cable shielding. The method comprises the following steps: preparing a copper plate; performing multi-pass cold rolling on the copper plate to form an elongated grain structure oriented along the rolling direction; performing controlled annealing on the cold-rolled copper foil to recover plasticity and inhibit complete recrystallization; the target thickness is obtained through finish rolling; carrying out finishing rolling on at least one surface of the copper foil by adopting a mirror surface working roller so as to reduce the surface roughness; and performing surface smoothing or passivating treatment to inhibit oxidation and performance degradation. Therefore, the obtained rolled copper foil has good ductility, structural stability and high-frequency performance.

The utility model relates to a smooth copper shell cold roll, which comprises an inner core component and a copper shell component coaxially connected outside the inner core component, a liquid inlet channel and a liquid outlet channel are respectively arranged at two ends of the inner core component, and an annular cavity is arranged in the copper shell component. The liquid inlet channel, the annular cavity and the liquid outlet channel are sequentially communicated and form a one-way cooling flow channel; an impeller rotating along with the liquid inlet channel is installed in the liquid inlet channel and used for driving cooling liquid to flow in the one-way cooling flow channel. Through the design of linkage of the impeller and the roller body, the cooling liquid is driven to flow by using the rotation power of the roller, an external pumping device is not needed, active cooling with zero extra energy consumption is realized, and the energy-saving benefit is remarkable; a spiral flow guide path is matched, so that the heat conduction efficiency and the cooling liquid contact area are greatly improved, and thermal deformation is effectively prevented.

The utility model relates to a sizing horizontal roller frame which comprises a machine frame and two rollers. The two horizontally-arranged rollers are connected with lifting pieces used for driving the rollers to move in the height direction of the rack, the two lifting pieces work to adjust the distance between the rollers, and steel pipes of different specifications penetrate through the circular channels of different diameters to be pressed. Steel pipes of different specifications are arranged in the circular channels of different diameters in a penetrating mode to be pressed, and each circular channel is designed for the steel pipe of the specific specification, so that it is guaranteed that the steel pipe can obtain the accurate size and shape in the pressing process. In addition, the semicircular grooves of the two rollers form a plurality of circular channels which have different diameters and are used for the steel pipes to pass through along the axial direction of the semicircular grooves, so that the structure can flexibly meet the production requirements of the steel pipes with different specifications.

Support system for storing rolling mill rolls, comprising: - a support frame (Cha) comprising a first support (Cha1) and a second support (Cha2), the first and second supports being fastened to the ground in parallel, - a pair of independent non-movable roll stands (Bc), each pair comprising a first roll stand and a second roll stand, the first and second roll stands being spaced apart by a certain distance, rigidly connected to the first support (Cha1) and the second support (Cha2) respectively, in order to support the rolls transversely on the support frame in different support positions, - a handling system configured to release and lift a roll located in one of the support positions of the pair of non-movable roll stands by lifting one or more movable roll stands using lifting means, to displace the movable frame (SMCH) and to place the roll in another support position of a non-movable roll stand displaced along the length of the support frame (Cha) by lowering of the lifting means.

The utility model provides a continuous rolling hole pattern system for rolling square billets into round bars, which comprises six hole patterns, namely four square hole patterns, one elliptical hole pattern and one round hole pattern in sequence, the groove bottom of the third square hole pattern is an arc, and the groove bottom of the fourth square hole pattern is an arc. According to the pass system, flat-bottom grooves of the third frame of square pass and the fourth frame of square pass are changed into protruding arc-shaped groove bottoms, the rolling reduction of the center area of a square billet is increased, the phenomenon that a rolled piece is twisted in the rolling process due to factors such as incoming material size fluctuation and rolling mill stand jumping is avoided, and the rolling stability is improved.

Disclosed is an electrode sheet calender roll including a hard layer formed by physical vapor deposition and a manufacturing method thereof. The manufacturing method of the electrode sheet calender roll according to one embodiment of the present invention is characterized by including: a hard layer forming step of forming a hard layer on a roll core composed of a steel material containing carbon by a PVD method; and a hard layer forming step of polishing the hard layer so that the thickness of the hard layer is different between a center portion and end portions of the calender roll.

The present invention provides a hot-rolling roll outer layer material that suppresses variations in the amount of crystallized carbides along the length direction and exhibits excellent wear resistance over its entire length, a centrifugal casting die for casting the hot-rolling roll outer layer material, a method for manufacturing the hot-rolling roll outer layer material, and a hot-rolling composite roll. [Solution] Contains C: 1.2~2.6%, Si: 0.1~2.2%, Mn: 0.1~2.2%, Ni: 0.4~5.5%, Cr: 2.0~10.5%, Mo: 2.0~12.0%, V: 2.0~9.5%, W: 0.5~8.5%, P: 0.01~0.06%, S: 0.001~0.060%, with the content of Mo, W, V, and Cr satisfying formula (1), the total crystallized carbide area ratio being 8.5% or more and 19.0% or less, each coefficient of variation being 16.0 or less, the maximum difference in the total crystallized carbide area ratio being 6.0% or less, the maximum difference between each coefficient of variation being 10.0 or less, and the crystallized M2C type carbide area ratio being 1.5% or more and 8.0% or less.

The utility model relates to the technical field of rolling mills, and discloses four-roller rolling mill equipment with a roller surface lubricating device, which comprises a transverse plate, two vertical plates are symmetrically and fixedly connected to the upper surface of the transverse plate, and two supporting rollers are rotatably connected between the two vertical plates in a penetrating manner from top to bottom. Two working rollers are rotatably connected between the two vertical plates and the two supporting rollers in a penetrating mode from top to bottom, and a damping mechanism is arranged outside the transverse plate. A lubricating mechanism is arranged in front of the two vertical plates on the upper surface of the transverse plate; by arranging the damping mechanism, looseness and fatigue damage of parts caused by vibration are remarkably reduced, so that the service life of equipment is prolonged, the lubricating mechanism realizes efficient and uniform coating on the surface of the working roller, rolling friction force is reduced, roller surface abrasion and workpiece surface scratches are reduced, and the service life of the equipment is prolonged. And the roller surface temperature is effectively controlled through the cooling effect of the lubricating oil, and roller surface damage caused by local overheating is avoided.

The application discloses a roll shape determination method, determines a roll surface initial curve; adopts a high-order reverse curve to perform edge processing on the initial curve to obtain a smooth superimposed curve; determines a slope curve on an operation side, connects the slope curve with the smooth superimposed curve to form a slope body combined curve; and performs fitting smoothing on the slope body combined curve to obtain a roll shape curve. The roll shape determination method provided by the application adopts high-order edge superimposed smoothing, conical design, curve intercepting combination, final smoothing and control rack use on the basis of the initial curve, guarantees the conical roll to reduce the edge drop effect, considers the body crown control at the same time, controls the middle wave problem, improves the profile quality and rolling stability, and provides strong support for super flat material rolling. The cost is not increased, and the existing process is not changed.

The utility model provides a distance-adjustable roller cooling device, which relates to the technical field of roller cooling and comprises an arc-shaped cooling mounting seat, an adjustable connecting piece and a fixed clamping groove seat, an arc-shaped plate is arranged on the inner side of the arc-shaped cooling mounting seat, and the adjustable connecting piece comprises a first connecting plate and a second connecting plate. The first connecting plate is fixed with the mounting base through the fixed clamping groove seat, the second connecting plate is arranged on the outer wall of the arc-shaped cooling mounting seat, a first adjusting groove is formed in the first connecting plate, a second adjusting groove is formed in the second connecting plate, a fastening bolt is arranged in the first adjusting groove, and one end of the fastening bolt penetrates through the second adjusting groove and then is connected with a nut; the fastening bolts are matched with the nuts to connect the first connecting plate and the second connecting plate, and when the roller diameter of the roller is reduced due to abrasion, the arc-shaped cooling mounting seat is adjusted to be close to the roller by moving the mounting position of the second connecting plate on the first connecting plate; and the distance between the cooling nozzle on the arc-shaped cooling mounting seat and the outer wall of the roller is kept constant.

A tempering-free wear-resistant hot rolled strip, includes components in percentage by weight: 0.08-0.22% of C, 0.1-0.55% of Si, 0.8-1.5% of Mn, less than or equal to 0.012% of P, less than or equal to 0.005% of S, 0.01-0.055% of Als, 0.005-0.019% of Ti, and less than or equal to 0.007% of N. A method for producing the same includes: desulfurizing molten iron, smelting desulfurized molten iron, and casting into a blank; heating the casting blank; performing rough rolling; performing finish rolling; performing rapid cooling; performing coiling; and performing conventional temper rolling. According to the present disclosure, on the premise that the tensile strength of a steel plate is greater than or equal to 1100 MPa and the elongation is greater than or equal to 12%, the steel plate has a surface Brinell hardness of 330-390 and a core hardness that is 95% or above of the surface hardness.

The invention discloses a cold rolling device capable of controlling the thickness of a steel pipe, and relates to the technical field of steel pipe machining, the cold rolling device is used for cold rolling of the steel pipe, the cold rolling device comprises a cold rolling mechanism, a feeding mechanism, a receiving mechanism and a core rod, the feeding mechanism, the cold rolling mechanism and the receiving mechanism are sequentially arranged in the feeding direction of the steel pipe, and the steel pipe penetrates through the cold rolling mechanism; the feeding mechanism is movably connected with the steel pipe, the steel pipe is movably connected with the receiving mechanism, the core rod is movably connected with the steel pipe, and the core rod is arranged in the steel pipe and penetrates through the feeding mechanism. When steel pipes with different thicknesses are cold-rolled, the rolling wheels are rotated to enable the steel pipes to be located in the other screw pitch section, so that the thickness of the cold-rolled steel pipes is changed, the cold-rolling working efficiency is improved by controlling the thickness of the cold-rolled steel pipes, and the cold-rolling strokes of the steel pipes in the rolling wheels are consistent through the multiple rolling wheels with different screw pitches; therefore, the cold rolling efficiency is improved.

The invention discloses a temper mill and finishing mill system for a pickling galvanizing unit, and relates to the technical field of strip steel leveling in steel production equipment, the temper mill and finishing mill system comprises an uncoiler, a pickling section, a temper mill, a galvanizing section, a finishing mill and a coiler which are arranged along the direction of a production line, the temper mill is a four-roller temper mill, the temper mill adopts a dry-type leveling mode, and the recoiling machine is a four-roller temper mill. A working roller wiper and a supporting roller wiper are arranged, and a suction device is arranged to suck away dust generated in the leveling process; and the finishing machine is provided with a wet finishing spraying beam and a high-pressure water cleaning trolley, so that the real-time lubrication and cleaning of strip steel and rollers can be realized, and the quality of a galvanized sheet finished product is effectively ensured.

The utility model provides a working roll capable of reducing transverse thickness difference of cold-rolled strip steel, which relates to the technical field of cold rolling process, a roll convexity is arranged in the middle of a roll body of the working roll, symmetrical strip steel edge thinning areas are arranged at positions of the roll body corresponding to two side parts of the strip steel, and small-diameter areas are formed. The diameter of the roller body corresponding to the strip steel edge thinning area is smaller than the diameter of the roller convexity in the middle of the roller body; wherein the strip steel edge thinning area is an extension area of the part of the strip steel width and the edge of the strip steel in the width direction and is used for counteracting the thickness difference caused by too high rolling pressure of the edge of the strip steel in the rolling process. Rolling mill equipment and rollers do not need to be modified, and roller consumption of the rollers is not increased. And the transverse thickness difference of the strip steel is less than 0.0068 mm.

Provided are a high-strength thin-gauge checkered steel plate / strip comprising the following chemical elements in weight percentages: C: ≤0.06%, Si: ≤0.5%, Mn: 0.4-1.7%, P≤0.04%, S≤0.007%, N: 0.004-0.010%, Als: <0.001%, B: 0.001-0.006%, Mn / S≥250, total oxygen [O]T: 0.007-0.020%; Cu: 0.1-0.6% and / or Sn: 0.005-0.04%; and a balance of Fe and other unavoidable impurities, and a manufacturing method thereof. The resultant steel roll can be used directly as hot-rolled checkered plate / strip, or as a finished checkered plate / strip after being cut and finished, and is widely applicable to the fields of architecture, mechanical production, automobile, bridges, transportation, ship building, etc.

The hard alloy roller structure comprises a shaft body, a screw sleeve, a hard alloy ring, a left-handed nut and a right-handed nut, the shaft body sequentially penetrates through the screw sleeve, the hard alloy ring, the left-handed nut and the right-handed nut from left to right, the screw sleeve is fixed to the shaft body, one end of the hard alloy ring abuts against the screw sleeve, and the other end of the hard alloy ring abuts against the right-handed nut. The other end of the hard alloy ring abuts against one end of the left-handed nut, the other end of the left-handed nut abuts against the right-handed nut, a first step, a second step and a third step are sequentially arranged on the right side shaft body of the shaft body screw sleeve from high to low, the first step is matched with the hard alloy ring, a left-handed external thread is arranged on the second step, and a right-handed external thread is arranged on the third step. The third step is provided with a right-hand thread which is matched with the left-hand nut, and the third step is provided with a right-hand thread which is matched with the right-hand nut. The left-handed nut and the right-handed nut are used for pressing and fixing, so that the nuts are firmer, and the hard alloy ring is prevented from loosening.

The application discloses a preparation method of a 1.5mm hot-rolled 800MPa-grade weather-resistant photovoltaic support steel in the field of hot-rolling steel production, and the method comprises the following steps: adopting a steel grade component with 800MPa-grade weather resistance, controlling the thickness and length of the steel casting blank; adopting a hot feeding and hot charging mode for heating; rough rolling and finish rolling are carried out; laminar cooling is carried out on the steel strip after finish rolling; and finally, coiling is carried out. The application adopts a plate blank with a proper length, which is beneficial to reducing the temperature difference of the intermediate blank and the head and tail of the steel coil, the hot feeding and hot charging mode is adopted for heating, the core temperature of the plate blank can be improved, the rolling is stable, the rough rolling is carried out for four passes, the temperature drop at the entrance of the finish rolling is further reduced, and through reasonable control of the rolling speed, the plate crown, the loop amount, the bending force and the roll shifting amount and other processes in the finish rolling process, the 1.5mm thick hot-rolled steel plate has the advantages of good rolling stability, good weather resistance and excellent comprehensive performance, and the production efficiency and the yield of the extremely thin gauge hot-rolled high-strength weather-resistant steel plate can be improved.

The roll condition monitoring device is provided with: a rolling load detecting mechanism configured to detect a rolling load signal of a monitoring object roll selected from among an upper roll set including at least one roll and a lower roll set including at least one roll, in a case where a roll material is rolled between the upper roll set and the lower roll set; a signal extracting mechanism configured to extract a rolling load high frequency signal having a frequency of a predetermined prescribed frequency or more from the rolling load signal; and a roll condition determining mechanism configured to determine a condition of the monitoring object roll based on a test result of a statistical test method for a plurality of rolling load values included in the rolling load high frequency signal.

The invention provides a ring rolling forming method and device for a continuous multi-step titanium alloy inner rib barrel, and the method comprises the following steps: step 1, machining a titanium alloy rod according to a design size to obtain a ring blank; 2, the surface of the ring blank is evenly coated with an anti-oxidation coating and aired, a resistance furnace is adopted for heating the ring blank, the heating temperature is controlled to be 30-50 DEG C below the phase transformation point of the titanium alloy, and heat preservation is conducted for 2-4 h; 3, a ring rolling mill is used for sequentially conducting pre-rolling forming, final rolling forming and final shaping on the ring blank; 4, after the surface of the ring blank is coated with an anti-oxidation coating, the ring blank is put into a non-vacuum heat treatment furnace, the heating temperature is set to be 600-650 DEG C, heat preservation is conducted for 60-120 min after the set temperature is reached, and the ring blank is discharged out of the furnace and subjected to air cooling; and 5, according to the design size of the titanium alloy barrel, the ring blank obtained after heat treatment is machined, a surface oxidation layer is removed, and the finished titanium alloy barrel is obtained. The material utilization rate is high, the production efficiency is high, the cost is low, and the overall mechanical property is good.

The utility model relates to a casting roller structure which comprises a roller core, the roller core is fixedly sleeved with a roller sleeve, roller core end covers are installed on the two sides of the roller core, a cooling water channel is formed in the roller core, a water outlet and a water inlet are formed in the cooling water channel, and a plurality of water tanks are machined in an inner hole of the roller sleeve; according to the casting roller, the outer circle of the roller core is not provided with a water tank, the inner hole of the roller sleeve is provided with a water tank, the inner hole of the roller sleeve is additionally provided with copper or aluminum materials with better thermal conductivity, and heat can be dissipated more quickly and uniformly after the casting roller is in contact with molten aluminum through structural optimization.

The present invention relates to a work roller for rolling metal articles, particularly for rolling metal strips, wherein the work roller has - a base body made of metal, and - an abrasion protection layer disposed at least partially on the base body, the abrasion protection layer being a thermal spray protection layer, and the abrasion protection layer having a thickness of 70 μm or less, preferably 40 μm or less, and particularly preferably 15 μm or less.

The utility model discloses an aluminum casting and rolling machine in the technical field of aluminum casting and rolling machines, which comprises an aluminum casting and rolling machine body, a water tank is arranged on the inner wall of the aluminum casting and rolling machine body, a cooling space is arranged inside the water tank, winding water flowing grooves are arranged on two sides of the cooling space, and the aluminum casting and rolling machine further comprises a water return unit. According to the stirring device disclosed by the utility model, the mounting plate is fixedly mounted at the top of the water tank, and one end of each of the two stirring rods is rotationally inserted into the surface of the mounting plate, so that during use, a user controls the output end of the driving motor fixedly mounted on the surface of the mounting plate to rotate through the controller, and then one transmission wheel can be driven to rotate; the other transmission wheel is driven by the transmission belt to rotate, and the two stirring rods are further driven, so that cooling water flowing into the cooling space from one winding water flowing groove is stirred by the two stirring rods, and the purpose of rapid cooling is achieved.

The utility model discloses a portable roller device for a rolling mill test run, which comprises a steel pipe, a web plate sleeved on the outer wall of the middle of the steel pipe, a roller body steel pipe sleeved on the outer wall of the web plate, flanges fixedly connected with two ends of the steel pipe, and two bearing seats fixedly connected with the two flanges in a one-to-one correspondence manner. The portable roller device for the test run of the rolling mill solves the problem that the efficiency of the rolling mill is low in the assembling test run process due to the fact that an existing roller is large in weight and inconvenient to transport.

This invention discloses a method for matching rolls in the cutting hole field, belonging to the technical field of section steel rolling. It solves the technical problem that the upper and lower rolls are damaged due to collisions between the cutting edges during high-speed rotation. The method involves setting a first roll matching gap smaller than the cutting edge gap at both ends of the upper and lower rolls, and determining the diameters of both ends of the upper and lower rolls based on the first roll matching gap. The first roll matching gap is 0.5-2mm smaller than the cutting edge gap. When the upper or lower roll shifts during high-speed rotation, because the first roll matching gap is smaller than the cutting edge gap, the first roll matching gap of the upper and lower rolls will contact each other first, preventing collisions between the cutting edges and avoiding abnormal damage to critical positions such as the cutting edges.