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38results about "Counter-pressure devices" patented technology
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Roll press machine
A roll press rolls each including an upper roll and a lower roll that are supported by a main bearing at both ends and rotate at a predetermined speed, upper and lower bending bearings that are disposed outside each of the main bearings and correct deflection of the press rolls by receiving a bending load, an upper reverse operation bending mechanism provided in the upper roll that operates with hydraulic oil, a lower reverse operation bending mechanism provided in the lower roll, and two upper reverse operation bending mechanisms and two lower reverse operation bending mechanisms being installed in the upper and lower bending bearings, respectively. Deflection occurring in the upper roll and the lower roll is corrected by causing the upper reverse operation bending mechanism or the lower reverse operation bending mechanism to generate downward power or upward power, respectively.
Owner:HIATACHI POWER SOLUTIONS CO LTD
A method of producing a backup roll steel
This invention relates to a method for producing support roll steel, belonging to the field of metallurgical industry, and solves the problems of high cost and severe shrinkage porosity in existing support roll steel. The method for producing support roll steel includes: smelting, deoxidizing, desulfurizing, and refining the support roll steel ingot raw material, adjusting the alloy composition to obtain a first portion of support roll steel molten steel, tapping the steel, vacuum casting, and solidifying to obtain a solidified billet shell and liquid steel inside the billet shell; smelting, deoxidizing, desulfurizing, and refining the support roll steel ingot raw material, adjusting the alloy composition to obtain a second portion of support roll steel molten steel, tapping the steel, mixing the second portion of support roll steel molten steel with the liquid steel inside the billet shell within the solidified billet shell of the first portion of support roll steel, vacuum casting, solidifying to obtain a complete support roll steel ingot, demolding, removing the sprue, forging, removing the riser, heat treating, and machining to obtain the support roll steel; the composition of the first portion of support roll steel and the second portion of support roll steel molten steel differs.
Owner:TIANJIN HEAVY EQUIP ENG RES +1
Sectional type structure for flexibly regulating and controlling mechanical property of supporting roller
The utility model relates to the technical field of supporting rollers, and discloses a sectional flexible supporting roller mechanical property regulating structure which comprises an independent supporting roller, the inner side of the independent supporting roller is slidably connected with a shaft center, the inner side of the shaft center is provided with a pressure regulating mechanism, and the outer side of the independent supporting roller is provided with a limiting mechanism. Flexible sheets are arranged on the inner sides of the independent supporting rollers, the outer sides of the flexible sheets are attached to the inner sides of the independent supporting rollers, the limiting mechanisms comprise limiting plates, the limiting plates are fixedly connected to the outer sides of the independent supporting rollers, bidirectional threaded rods are rotationally connected to the inner sides of the limiting plates, and anti-skid wheels are fixedly connected to the middles of the peripheries of the bidirectional threaded rods. The anti-skid wheels drive the bidirectional threaded rods to rotate, so that the bidirectional threaded rods drive the movable plates to move through the threaded plates, the movable plates can drive the insertion rods to be inserted into the inner sides of the axes, the positions of the axes are limited, and when external equipment drives the axes, the axes can drive the independent supporting rollers to rotate through the insertion rods.
Owner:CHANGZHOU ECCO ROLLER
Ultra-thin aluminum alloy profile rolling device capable of achieving flat rolling
The invention relates to the technical field of profile rolling, and particularly discloses a flat-rolling ultrathin aluminum alloy profile rolling device which comprises rolling racks, and a profile pretreatment unit is fixedly arranged between the front faces of the two rolling racks through bolts; sectional material rolling units are symmetrically arranged on the upper portion and the lower portion between the two rolling racks, and auxiliary supporting assemblies are arranged on the two sectional material rolling units. Through the composite structure design of the working roller, the rolling quality is improved from three aspects: the flat roller and the convexity roller are adapted to the thickness control requirements of profiles with different widths; the nano ceramic coating strengthens the wear resistance of the roller surface; by means of the micro-nano rib and pit structure, on one hand, the contact area of the roller and the profile is reduced, the friction coefficient is reduced, drawing marks or wrinkles of the profile are avoided, and on the other hand, the pits are used for storing lubricating oil and containing aluminum skimmings to protect the surface of the profile. And meanwhile, the servo electric cylinder is matched with the adjusting frame, so that the distance between the rollers can be accurately adjusted to adapt to rolling of profiles with different thicknesses, and the rolling precision is guaranteed.
Owner:ANHUI JINYING ALUMINUM
Integrated multi-mode roller system switchable ultra-thin strip precision rolling mill system
The invention relates to the technical field of metal rolling machining, and discloses an integrated multi-mode roller system switchable ultra-thin strip precision rolling mill system which comprises a closed type common rack and a screw-down system fixedly connected to the closed type common rack. The multi-mode detachable roller system mechanism is matched with the assembly space in the closed type common rack, the multi-mode detachable roller system mechanism comprises a six-roller roller system mechanism, a twelve-roller roller system mechanism and a twenty-roller roller system mechanism, and the screw-down system is used for adjusting the rolling thickness of the roller system mechanisms; the shared transmission mechanism comprises a motor, a gear seat and a transmission shaft, one end of the transmission shaft is in transmission connection with the motor through the gear seat, and the other end of the transmission shaft can be in transmission connection with any one of the six-roller system mechanism, the twelve-roller system mechanism and the twenty-roller system mechanism. Covering type rolling from thick strips to ultra-thin strips is achieved, the modular production requirement for small-batch customization of the ultra-thin strips is met, and the rack utilization rate and the equipment utilization rate are remarkably increased.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY
A steel strip rolling mill and a steel strip rolling method
The application provides a steel strip rolling mill and a steel strip rolling method. The steel strip rolling mill comprises a rack, a work roller assembly and a pressure regulating roller assembly arranged on the rack. The work roller assembly comprises an upper work roller and a lower work roller which can rotate relative to the rack, and a rolling channel is formed between the upper work roller and the lower work roller. The pressure regulating roller assembly comprises a first pressure regulating roller arranged above the upper work roller, and the first pressure regulating roller is provided with a first roller surface at one end close to an operation side, and the first roller surface is arranged tangentially with a work roller surface of the upper work roller. By arranging the pressure regulating roller assembly, the first roller surface of the first pressure regulating roller close to the operation side is arranged to press the upper work roller, and the rolling pressure of the upper work roller away from the driving side can overcome the reaction force generated in the process of rolling the steel strip, so that the rolling channel of the work roller assembly can be kept stable in the process of rolling the steel strip, and the deviation of the transverse thickness of the steel strip can be avoided, so that the quality of the steel strip can be ensured and the rolling efficiency can be improved.
Owner:FOSHAN JIANCHUANGYE PRECISION STEEL STRIP CO LTD
A lamination lubricant distribution unit for lubricating the work rolls of a rolling mill used to laminate sheets of alkali metals or alkali metal alloys into films.
A lamination lubricant dispensing unit is disclosed for lubricating the work rolls of a rolling mill used to laminate sheets of alkali metals or alkali metal alloys into films. The lubricant dispensing unit comprises: a dispensing unit body defining a laterally extending wall; a first sidewall and a second sidewall extending forward from the laterally extending wall; and a protrusion connected to a lower end of the wall. The protrusion extends forward from the laterally extending wall and extends between the sidewalls. The protrusion and the wall define a recess having an open side. The protrusion has a leading edge for abutting against the lamination surface of the work roll. At least a portion of the protrusion is an angled portion extending upward and backward from the leading edge toward the laterally extending wall. The dispensing unit body defines at least one lubricant channel having an outlet defined in the laterally extending wall.
Owner:BLUE SOLUTIONS CANADA INC
Roller system structure and rolling method for rolling magnesium alloy thin strip
The application discloses a rolling mill roller system structure and a rolling method for rolling magnesium alloy thin strips, which comprises upper supporting working rollers, lower supporting working rollers, upper working rollers, lower working rollers, front machine following steering rollers, rear machine following steering rollers, an uncoiler and a coiler, and magnesium alloy thin strips on the uncoiler pass through the upper supporting working rollers and the upper working rollers, the rear machine following steering rollers, the space between the upper working rollers and the lower working rollers, the front machine following steering rollers, the space between the lower supporting working rollers and the lower working rollers and are wound on the coiler in sequence in a rolling direction. The rolling mill roller system structure realizes one-time unwinding and winding of the magnesium alloy thin strips on a single-stand production line, three-pass rolling can be carried out in the unwinding and winding process, the number of heating and temperature compensation can be reduced, the four-drive asymmetric roller system body structure is adopted, the special requirements of the special lattice structure of the magnesium alloy thin strips on rolling deformation can be met, the anisotropy of the product can be reduced, and the product performance can be further improved.
Owner:CHINA NON-FERROUS METALS PROCESSING TECH CO LTD
Intermediate roll shifting device for six-roll mill
The utility model discloses an intermediate roll shifting device for a six-roll mill, which is characterized in that two ends of an upper intermediate roll and a lower intermediate roll are respectively and fixedly arranged in an intermediate roll bearing seat assembly on a rack, the intermediate roll shifting device further comprises two intermediate roll shifting mechanisms, and the upper intermediate roll and the lower intermediate roll are respectively driven by the intermediate roll shifting mechanisms; each middle roller shifting mechanism comprises a roller shifting driving device, the two ends of each roller shifting driving device are connected with locking pin blocks respectively, and the two locking pin blocks are detachably connected with the corresponding middle roller bearing seat assemblies respectively. According to the intermediate roll shifting device for the six-roll mill, the intermediate roll shifting action can be completed only by driving the intermediate roll assembly through the intermediate roll shifting mechanism, the rolled plate shape control is guaranteed, and the problems that an existing structure is complex, the operation requirement precision is high, and the leakage point risk exists are solved.
Owner:MCC SFRE HEAVY IND EQUIP
Supporting steel roller with multiple layers of fastening mounting mechanisms
ActiveCN223642479UCounter-pressure devicesMetal rolling arrangementsStructural engineeringMechanical engineering
Owner:TIHUI ROLLER (SUZHOU) CO LTD
Guiding device for chocks of work rolls in roll stands
Owner:SMS GROUP GMBH
Roller frame device with supporting roller shaft easy to replace
ActiveCN223946483UMetal rolling stand detailsCounter-pressure devicesStructural engineeringMechanical engineering
The utility model discloses a roll frame device with a supporting roll shaft easy to replace, which relates to the technical field of cold-roll steel plate online production equipment and comprises a movable bottom plate, a lifting mechanism is arranged on one side of the upper end face of the movable bottom plate, a distance adjusting component and a limiting component are mounted on the lifting mechanism, and a lifting structure is connected onto the distance adjusting component. The other side of the upper end face of the movable bottom plate is provided with a balance weight structure, the lifting structure comprises a circular end plate, the top of the circular end plate is provided with an inserting groove, the edge side of the bottom of one side of the circular end plate is provided with an arc-shaped supporting ring, the lifting mechanism comprises two fixing cylinders, lifting plates are slidably inserted into the two fixing cylinders, and the upper ends of the two lifting plates are connected with lifting rods. According to the roll shaft replacing device, through the arrangement of the lifting mechanism, the distance adjusting assembly, the limiting assembly, the lifting structure and the balance weight structure, different roll shafts can be replaced, the roll shafts cannot fall off from the roll shaft replacing device in the whole process, and accident risks and potential safety hazards are effectively reduced.
Owner:ANGANG COLD ROLLED STEEL PLATE (PUTIAN) CO LTD
Rolling machine
PendingUS20260108928A1Metal rolling stand detailsCounter-pressure devicesWork rollStructural engineering
Rolling machine (1) includes work roll (10) that comes into contact with rolled material (K), backup roll (20) that supports work roll (10), housing (30) that accommodates work roll (10) and backup roll (20), first bearing (40) that supports work roll (10) with respect to housing (30), and second bearing (50) that supports backup roll (20) with respect to housing (30).
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Hydraulic balance mechanism for roller
ActiveCN224157517UMetal rolling stand detailsRolling equipment maintainenceBalancing machineElectric machine
The utility model relates to the technical field of metallurgical machinery, and discloses a roller hydraulic balance mechanism which comprises a mounting frame and a plurality of rotating motors, the output ends of the rotating motors are fixedly connected with rolling rollers, and the left ends of the rolling rollers are rotationally connected to the left side of the interior of the mounting frame. A lifting mechanism is arranged at the top of the inner side of the mounting frame and used for conducting lifting adjustment on the upper rolling roller and the lower rolling roller, and a double-balance mechanism is arranged at the top of the mounting frame and used for reducing thread damage generated in the adjustment process of the lifting mechanism. The driving motor drives the double worm shafts to be in transmission with the worm gear groove of the threaded barrel, so that the threaded barrel rotates to push the screw to ascend and descend in the limiting disc, the rolling roller is driven to adjust the height through the rotating sleeve, the effect of accurate ascending and descending adjustment of the rolling roller is achieved, shaking and deflection during adjustment are reduced, screw thread damage is reduced, and the rolling precision is improved; the service life of the screw is prolonged.
Owner:江苏富民鑫科重型机械有限公司
Roll press apparatus and method for manufacturing processed products
This technology reduces the amount of workpieces that have uneven thickness in the width direction. [Solution] The roll press apparatus includes a sensor unit that measures the shapes of the first roll and the second roll and detects the deflection of the first roll and the second roll, and a control unit that operates at least one of the first bend unit and the second bend unit so as to impart reverse deflection to the first roll and the second roll in response to the deflection detected by the sensor unit.
Owner:SINTOKOGIO LTD
Supporting base and supporting equipment
ActiveCN224058359UGood fit and supportImprove stabilityCounter-pressure devicesMetal rolling arrangementsSupport pointIndustrial engineering
The utility model relates to the technical field of mechanical maintenance equipment, in particular to a supporting base and supporting equipment. The supporting base comprises a bottom plate; the multiple supporting blocks are arranged on the surface of the bottom plate in an array mode, every two adjacent supporting blocks are symmetrically arranged relative to the center line of the bottom plate, every two adjacent supporting blocks incline inwards to form an inclined face, and the multiple inclined faces are symmetrically arranged to form a groove-shaped fixing space; a vertical distance is formed between every two adjacent supporting blocks, and the vertical distance is smaller than or equal to 100 mm. According to the supporting base, through the unique design and layout of the supporting blocks, the symmetrically-arranged supporting blocks and the evenly-distributed supporting points, stable, attached and efficient supporting of the rolling mill supporting roller is achieved. By means of the design, the stability of the rolling mill back-up roll in the checking process is improved, the safety of the rolling mill back-up roll is guaranteed through the self-locking effect, and powerful guarantee is provided for efficient operation of a rolling mill.
Owner:SHOUGANG JINGTANG IRON & STEEL CO LTD
Rolling mill and rolling method
PendingUS20260061468A1Metal rolling stand detailsCounter-pressure devicesHydraulic cylinderWork roll
Provided are a plurality of hydraulic cylinders including drive side shift cylinders and work side shift cylinders all configured so as to apply force in an axial direction to a top work roll. The position of the top work roll in the axial direction is held by the drive side shift cylinders and the work side shift cylinders being moved in respective axial directions. The hydraulic circuit is configured such that, after the hydraulic circuit holds the position of the top work roll in the axial direction, in a case where the hydraulic cylinders from between the drive side shift cylinders or between the work side shift cylinders are put, by external force acting upon the top work roll, into a state in which the one hydraulic cylinder applies force in the axial direction to the top work roll, the other hydraulic cylinders are moved in the opposite direction.
Owner:PRIMETALS TECHNOLOGIES JAPAN LTD
Hot rolling mill for small lithium battery pole piece
The invention relates to the technical field of lithium battery pole piece processing, and discloses a hot mill for a small lithium battery pole piece, the hot mill comprises a concave mounting rack and two symmetrically arranged hot rolling mechanisms, and the pole piece passes through the concave mounting rack and the two hot rolling mechanisms. Each hot rolling mechanism comprises a mounting block, a rotating frame and three uniformly distributed rollers, and the rollers can be quickly switched by driving the rotating frame through a motor I; two auxiliary compression rollers controlled by a reverse synchronous moving structure are arranged on the mounting block and can move in opposite directions to support the working rollers, so that rolling deformation is effectively resisted; the driving structure drives the roller to rotate through the transmission and rotation assembly, and a heating structure is arranged to achieve temperature control. The auxiliary compression roller also has the functions of smearing a separant and cleaning the surface of the roller; the problems that an existing hot mill roller is prone to deformation, tedious to replace and low in production efficiency are solved, the roller replacing device has the advantages of being rapid in roller replacing, stable in supporting, resistant to roller sticking, capable of achieving self-cleaning and the like, and the pole piece quality consistency and the equipment utilization rate are remarkably improved.
Owner:SHENZHEN HUIXINLI ELECTRONIC TECH CO LTD
Ultra-thin silicon steel cold rolling production system
The invention belongs to the field of plate and strip rolling, and relates to an ultra-thin silicon steel cold rolling production system. An ultra-thin silicon steel cold rolling production system comprises a memorial archway, a tower-shaped roller system and a servo oil cylinder. The tower-shaped roller system is composed of an upper roller system and a lower roller system, and the upper roller system and the lower roller system are both installed in the memorial archway. And the servo oil cylinder is arranged below the lower roll system and controls the overall lifting of the lower roll system so as to change the opening degree of the rolling mill, and the opening degree of the rolling mill is suitable for threading rolling, broken strip treatment and residue cleaning of ultra-thin silicon steel. The ultra-thin silicon steel cold rolling production system has the large opening degree and the high roll system rigidity, and through arrangement of the tower-shaped roll system, the requirement for the small roll diameter needed by rolling of ultra-thin silicon steel strips is met, and the overall roll system rigidity is guaranteed. The whole lifting of the lower roll system is driven by the servo oil cylinder, so that the requirements of conditions such as strip threading and maintenance on large opening degree are met, and great space arrangement in the machine provides convenience for handling accidents such as strip breakage.
Owner:CHINA NAT HEAVY MACHINERY RES INSTCO
Rolling mill for rolling metallic rolled material and method for automatically adjusting at least one roll position in a rolling mill
PendingDE102024133669A1Roll force/gap control deviceCounter-pressure devicesControl signalRolling mill
The invention relates to a rolling mill comprising: - at least two rollers which are rotatably mounted in a rolling stand about their respective longitudinal axes, wherein the rolling plant is designed to roll a material passing between the two rollers in a conveying direction by means of the two rollers; - a pivoting device by means of which at least one of the two rollers can be moved in such a way that an angle enclosed by the longitudinal axes of the two rollers can be changed; - at least one edge detection device arranged downstream of the rollers in relation to the conveying direction, by means of which a first distance of a first side edge of the rolled material to a center line of the two rollers extending parallel to the conveying direction and a second distance of a second side edge of the rolled material to the center line of the two rollers can be determined; - a control device that is data-coupled with the edge detection device for receiving measurement data and with the swivel device for transmitting control signals, The control device is configured to control the pivoting device based on a difference between the first distance and the second distance such that the first distance and the second distance equalize. The invention also relates to a method for automatically adjusting at least one roll position of at least one roll of a rolling mill.
Owner:SMS GROUP GMBH
Variable convexity back-up roll for metal rolling mill
ActiveCN223932273UCounter-pressure devicesMetal rolling arrangementsStructural engineeringBackup roll
The utility model discloses a variable convexity back-up roll for a metal rolling mill, which belongs to the technical field of metal rolling mills and comprises a roll body, roll arms symmetrically mounted on the surface of the roll body, a connecting rod fixedly connected to the tail ends of the roll arms and an assembly shaft seat fixedly connected to the tail end of the connecting rod, and a reinforcing component is mounted outside the assembly shaft seat. The reinforcing assembly comprises a reinforcing ring which is arranged outside the assembling shaft seat in a sleeving mode and is arranged in a sliding mode. After a driving part of the metal rolling mill is fixedly connected with the assembling shaft seat, a reinforcing ring is pulled towards the outer side along the assembling shaft seat, a guide seat slides along a guide groove, then a locking bolt is screwed relative to a positioning groove of the reinforcing ring, and the inserting end of the locking bolt extends into a limiting groove. At the moment, the reinforcing ring reinforces the joint of the assembly shaft seat and the driving part of the metal rolling mill, so that the structural strength and the torsion resistance are improved, and the service life is prolonged.
Owner:QINGDAO TAIXIN MASCH CO LTD
Rolling with minimal bending force reduction upon entry.
In the rolling mill stand (1), a flat workpiece (8) made of metal is rolled. The work roll inserts (5) are squeezed apart by the bending system (10). A basic setpoint (FBB*) is provided to the bending feedback controller (14), and the bending feedback controller (14) determines a composite setpoint (FB*) taking into account the basic setpoint. The actual value of the bending force (FB) is also provided to the bending feedback controller (14). The bending feedback controller (14) thereby determines the basic manipulated variable (SB) of the bending system (10) such that when the bending system (10) is driven with the basic manipulated variable (SB), the actual value (FB) is as close as possible to the basic setpoint (FBB*). From the stabilization time point (t3) after the entry time point (t2), the bending feedback controller (14) determines the composite setpoint (FB*) with additional consideration of the actual rolling force (F). During the entry period, which begins before the actual entry time (t2) and ends no later than the stabilization time, an additional setpoint (FBZ*) is provided to the bending feedback controller (14), which takes this into account when determining the composite setpoint (FB*). Thus, the actual value of the bending force (FB) is greater than the basic setpoint (FBB*). Alternatively or additionally, an additional manipulated variable (SZ) is added to the basic manipulated variable (SB), or the adjustment variable (SR) provided to the bending system (10) is downwardly limited by the minimum manipulated variable (SM).
Owner:PRIMETALS TECH GERMANY GMBH
Sectional structure of high-wear-resistance bushing supporting roller
ActiveCN224101479UCounter-pressure devicesMetal rolling arrangementsWear resistantStructural engineering
The utility model relates to the technical field of supporting roller structures, and discloses a sectional structure of a high-wear-resistance bushing supporting roller, which comprises two roller bodies, clamping mechanisms are arranged on the surfaces of the two roller bodies, and mounting mechanisms are arranged on the surfaces of the roller bodies; the clamping mechanism comprises an L-shaped arc seat, the L-shaped arc seat is arranged at one end of the surface of the roller body, a first spring is fixedly connected to the surface of the L-shaped arc seat, a T-shaped rod is fixedly connected to one end of the first spring, a second spring is arranged on the surface of the roller body, an arc-shaped strip is fixedly connected to one end of the second spring, and a long rod is fixedly connected to the interior of the arc-shaped strip. According to the sectional type structure of the high-wear-resistance bushing supporting roller, through the arrangement of the clamping mechanisms, the reinforcing effect can be achieved after the multiple sections of roller bodies are spliced and installed, scenes with different rolling requirements and the integral type structure can be flexibly adjusted conveniently, the conditions of loosening, displacement and the like are avoided, and the rolling precision and the product quality are guaranteed.
Owner:CHANGZHOU ECCO ROLLER
Rolling mill
ActiveJP2026006595AMetal rolling stand detailsCounter-pressure devicesReciprocating motionStructural engineering
To provide a rolling mill capable of efficiently rolling a hard material having high product quality.SOLUTION: The arm 15 is rockably and axially slidably connected to the intermediate roll bearings 4 on the operating side and the driving side of the intermediate rolls 3 through a connecting shaft 16, the pass direction position of the arm 15 is adjusted and supported by a side block 17 capable of adjusting the pass direction position, the intermediate rolls 3 are shifted in the roll axial direction together with the intermediate roll bearings 4 and the connecting shaft 16 at the time of shift in the roll axial direction of each intermediate roll 3, and the arm 15 stays without shifting in the axial direction by sliding on the connecting shaft 16.SELECTED DRAWING: Figure 1
Owner:NIPPON SENJIMIA
A D-shaped steel pipe rolling device
The application provides a D-shaped steel pipe rolling device, which comprises a rolling frame, a plurality of driving assemblies and an auxiliary supporting assembly. The inside of the rolling frame is provided with a plurality of groups of rollers, and the rollers in the same group comprise an upper roller and a lower roller. The auxiliary supporting assembly can assist in supporting the supporting columns on the upper roller and the lower roller, and support the annular grooves on the surface of the supporting columns, that is, the supporting columns are radially supported and axially supported, so as to resist the top pressure of the steel pipe body on the upper roller and the lower roller, reduce the effect of the top pressure on the connecting point between the supporting columns and the rolling frame, and further reduce the loss of the connecting part between the rollers and the rolling frame, thereby slowing down the loss speed of the connecting part between the rollers and the rolling frame.
Owner:JIANGSU GUOQIANG SAFETY NEW MATERIAL CO LTD
Supporting roller and preparation method thereof
The invention discloses a supporting roll and a preparation method thereof, belongs to the technical field of preparation of supporting rolls, and solves the problems of long repair process time, low production efficiency and high cost when the hardness of the existing supporting roll is unqualified after hardening and tempering. The preparation method of the supporting roll comprises the following steps: carrying out thermal refining on a supporting roll forge piece, wherein the hardness of a roll neck after thermal refining is higher than the technical requirement; the supporting roller forge piece is put into a furnace at the temperature of 300-350 DEG C to be heated and subjected Rapidly raising the temperature to T3; preserving heat at T3; the furnace temperature is adjusted to 500-520 DEG C, and heat preservation continues; transferring the supporting roller into a differential temperature furnace, only heating a roller body, rapidly raising the temperature of the furnace to 970-1020 DEG C, and carrying out air cooling on a roller neck; keeping the temperature at 970-1020 DEG C until the temperature of the roller surface reaches a preset quenching temperature; the furnace temperature is adjusted to 950-970 DEG C for heat preservation; roller body spray cooling; and tempering after spray cooling. The surface hardness of the roller body and the hardness of the roller neck of the supporting roller prepared by the method meet the technical requirements, and the residual stress is small.
Owner:TIANJIN HEAVY EQUIP ENG RES +1
Guide device for chocks of working rolls in a roll stand
Owner:SMS GROUP GMBH
Auxiliary tool for fastening wear-resisting plate of rolling mill housing
ActiveCN224058360UGuaranteed dimensional accuracyEffectively simulate force conditionsMetal rolling stand detailsCounter-pressure devicesStructural engineeringIndustrial engineering
The utility model relates to the technical field of fastening operation assistance, in particular to an auxiliary tool for fastening a wear-resisting plate of a rolling mill housing, which comprises two cylinders, a plurality of holes horizontally penetrate through the two cylinders, and two holes at the same height on the two cylinders form a movable hole unit. A supporting piece is horizontally inserted into at least one movable hole unit, a hydraulic jack is arranged on at least one column body, and the end of the hydraulic jack in the telescopic direction makes contact with the end of the supporting piece. Displacement of the supporting piece on the column body is controlled through the hydraulic jack, the bolt fastening operation of the wear-resisting plate can be assisted after the wear-resisting plate at an inlet and an outlet of the rolling mill is jacked, the stress condition of the wear-resisting plate at the rolling mill housing in the rolling process is effectively simulated, and the problem that the bolt is easy to loosen after the wear-resisting plate is impacted during production of the rolling mill is solved.
Owner:NANJING IRON & STEEL CO LTD
Novel high-load-resistant back-up roll
The utility model relates to the technical field of back-up rolls, and discloses a novel high-load-resistant back-up roll which comprises a roll core, a roll sleeve is sleeved on the outer side of the middle of the roll core, two water retaining rings are symmetrically arranged on two sides of the roll sleeve, the water retaining rings are sleeved on two sides of the roll core, two ball bearings are symmetrically arranged at two ends of the roll core, and the ball bearings are sleeved on the roll sleeve. The back-up roll comprises a back-up roll body, the back-up roll body is provided with a plurality of ball bearings, the ball bearings are provided with ball contact surfaces, the end portions of the outer sides of the ball bearings are provided with positioning bearings, the positioning bearings are provided with bearing contact surfaces, and the end portions of the bearing contact surfaces are provided with connecting end heads. And the composite roller core and the roller sleeve have an extremely high forging ratio, the grain structure is finer, and although the material purity of the whole roller is higher than that of the composite roller core in the heat treatment process, the whole roller is not easy to deform, namely fatigue cracks are not easy to produce, and the general service life is more than three times of that of the whole roller core.
Owner:SHANGHAI WUXING COPPER CO LTD
After-rolling rolling transformation method for hot-rolled narrow strip steel production line
PendingCN121198797AGuiding/positioning/aligning arrangementsCounter-pressure devicesProduction lineTorsional oscillations
The invention discloses an after-rolling rolling transformation method for a hot-rolled narrow strip steel production line, which comprises transformation of a torsional oscillation area (1), transformation of a flat plate chain area (2) and transformation of a coiling area (3) and a collecting area (4), and sequentially comprises the following steps of: additionally arranging a horizontal free roller (11) at a bottom plate (1b) of a finish rolling outlet (1a); a vertical free roller (12) is additionally arranged between the pinch rollers; two rows of vertical rolling guard plates (21) are mounted at the foremost end of the flat plate chain conveyor; a high-temperature-resistant and wear-resistant material is coated on the surfaces of a pusher dog of the coiling machine and the coiled conveying roller way; in the structure of the automatic bundling machine, the angle of a standing column roller is adjusted to a specific value. The device has the advantages that the steel belt is always kept in contact with the rotatable part, direct sliding contact is avoided, and therefore the scratch defect rate is remarkably reduced, the product percent of pass is increased, and the repair and scrap cost is reduced.
Owner:NANJING IRON & STEEL CO LTD