164results about How to "Reduce rolling force" patented technology

The rotatable wheel assembly includes an axle and wheels. Mounting arms with mounting pins or L-shaped rods are coupled to the axle and may include end caps covering portions of the mounting pin or rod. The mounting pin or end cap is inserted into a receptacle on opposing sides of a cooler. Alternatively, the mounting arms may have an eyelet that may be rotatably coupled to a mounting stud on each side of the cooler. The assembly may be placed in a resting or rolling position along the cooler body. In the resting position, the assembly rests or snaps into a groove along the side of the cooler and out of contact with the surface. The assembly can be rotated from the resting position to a rolling position with the axle positioned under the cooler and the wheels in contact with the surface to assist in transporting the cooler.

The invention relates to high-strength steel and a production process thereof, which are high-strength multiplied by 100 pipeline steel produced by a steckel mill and the production process thereof. The main control ranges of parameters of the hot rolling process are as follows: the heating temperature of flat blanks is 1100 to 1250 DEG C; the final temperature of rolling controlling of a recrystallization zone is 1000 to 1080 DEG C; the beginning temperature of rolling controlling of a non-recrystallization zone is 900 to 980 DEG C; the final rolling temperature is 720 to 880 DEG C; and the final cooling temperature is 200 to 500 DEG C and the cooling temperature is 3 to 40 DEG C per second. The production process is suitable for the production line of the steckel mill and also for the production line of medium heavy plates with weaker rolling power, solves the technical problem that the existing production line of the steckel mill or the production line of thick heavy plates with insufficient production capacity can not produce the high-strength pipeline steel smoothly.

Production of non-orientated cold-rolling silicon steel sheet is carried out hot milling, conventionally treating, acid washing, primary cold rolling, intermediate annealing, secondary cold rolling and product annealing. It costs low and has better quality, and it can decrease rolling force and has less harmful elements. It can be used to produce medium and small electric motor.

The invention relates to a method for preparing oriented silicon steel with an asymmetrical rolling technique for a roughing mill or a finishing mill. The method is characterized in that an asymmetrical rolling mode is comprehensively introduced in the rough rolling and finish rolling process of hot rolling: 1, all passes or the first two passes of the rough rolling stage adopt asymmetrical rolling and all passes or the last pass of asymmetrical rolling of the finish rolling; and 2, all passes or the first two passes of the rough rolling stage adopt asymmetrical rolling and all passes or the first pass and the last pass of asymmetrical rolling of the finish rolling. The method is as follows: 1) when the rotation speeds of working rolls are same, the asymmetry is realized through the difference of the diameters of a top working roll and a bottom working roll; 2) when the diameters of the top working roll and the bottom working roll are same, the asymmetry is realized through the difference of the rotation speeds of the working rolls; 3) when the diameters of the top working roll and the bottom working roll are same and the rotation speeds are same, the asymmetry is realized by changing the friction coefficient of the top and bottom working roll surfaces and a rolling piece; the circumferential speed ratio of the top working roll and the bottom working roll of an asymmetrical mill is 1:1.01-1:1.30, the total reduction rate of the rough rolling is at least 85 percent, and the pass reduction rate is 20-40 percent; and the total reduction rate of the finish rolling is at least 90 percent, and the pass reduction rate is 20-40 percent. The oriented silicon steel comprises the following ingredients by weight percent: 0.03-0.08 percent of C, 2.8-6.5 percent of Si, 0.05-0.2 percent of Mn, 0.013-0.035 percent of S, 0.01-0.05 percent of Al, 0.045-0.01 percent of N, at most 0.03 percent of P, 0.05-0.5 percent of Cu and the balance of Fe and other impurity elements.

The invention discloses a hot-rolled composition with organic silicon anti-friction antilubricant, which comprises the following parts: (I) lubricant basic oil with viscosity at 5-300mm2 / s at 40 deg.c, (II) 0.1-20wt% sulphur extreme pressure agent with one or more material from alkyl polysulfide, sulfur ore oil and sulfur polyol ester, (III) 0.05-15wt% phosphorus antiwear agent with one or more material from phosphate, phosphonate, phosphite ester, acid phosphate ester, phosphite ester amine salt, phosphamide ester, dialkyl dithiophosphate, dimercaptothiodiazole dithiophosphate ester and acid phosphate imidazoline salt, (IV)1-40% nanometer abrasion resistance antilubricant with acid solution of soluble zircon salt, aluminium salt or boracic acid, alkaline solution and lubricant disperser and emulsifier.

The invention discloses a high-strength high-toughness pressure vessel steel plate which comprises the following chemical components in percentage by mass: 0.160-0.210% of C, less than or equal to 0.55% of Si, 1.58-1.80% of Mn, less than or equal to 0.012% of P, less than or equal to 0.0025% of S, less than or equal to 0.45% of Ni, less than or equal to 0.020% of Al, 0.13-0.18% of V, 0.0080-0.0180% of N, less than or equal to 0.0005% of Mg and the balance of Fe and inevitable impurities. The V-Ni-N alloy system is adopted, a heterogeneous core fine dispersion effect formed by introducing Mg and the means of controlling the components Al, N and V are combined, and the medium / low-temperature heating system and the crystallization controlled rolling technology are adopted, so that the steel can achieve excellent low-temperature high strength and high toughness, can effectively solve the technical problem that the conventional pressure vessel steel plate difficultly meets the low-temperature service requirement, and has important popularization and application value.

The invention discloses a non-groove rolling method for high speed wire rod roughing mill group and mainly solves rolling technical problem of the high speed wire rod roughing mill group. The non-groove rolling method comprises two pass non-groove rolling, four pass non-groove rolling or six pass non-groove rolling; the ratio of height and width of the rolling component is 0.90 to 1.58, reduction rate of pass is 15 percent to 45 percent, rolling temperature is 1000 celsius degree to 1100 celsius degree, the adaptation range of blank is 120*120mm to 180*180mm, and the absolute spread coefficient range is 0.25 to 0.45. The invention adopts a pass-free flat roller to replace a rough rolling pass roller of the prior art and realizes non-groove rolling of the high speed wire rod roughing mill group. The invention aims to provide the non-groove rolling method for the high speed wire rod roughing mill group adopting the flat roller to replace the rough pass roller, meanwhile, decreasing production cost, improving product quality and productivity of the mill and expanding the adaptation range of blank.

The invention relates to a continuous asynchronous rolling device of a magnesium alloy sheet strip coil and belongs to the field of magnesium alloy materials. The continuous asynchronous rolling device conducts decoiling on the magnesium alloy strip coil through a decoiling device, the magnesium alloy strip coil enters a flattening machine to be flattened through a tension pinch roller and enters a strip coil preheating device through the tension pinch roller after being corrected to be heated to preset temperature, feeding material thickness is measured through a thickness gauge, then the strip coil enters a continuous asynchronous rolling machine for rolling, the rolled strip coil passes through the thickness gauge to measure thickness of a finished product and enters a rolling machine to be rolled through the tension pinch roller, and the whole coiling rolling is achieved after stable rolling tension is finished. The continuous asynchronous rolling device has the advantages of reducing rolling pressure and rolling torque, reducing energy consumption, increasing gate transformation quantity, improving rolling efficiency and the like, thereby being favorable for rolling production of strip coils of magnesium alloy which is hard to deform.

The invention discloses a method for preparing large-size molybdenum plates for sputtering targets of liquid crystal display (LCD) flat-panel displays, which comprises: 1), uniformly brushing an antioxidation coating on the surface of a molybdenum plate blank by pressing and sintering by the conventional process; 2), covering the molybdenum plate blank with the antioxidation coating with a steel capsule; 3), rolling the molybdenum plate blank covered with the steel capsule by one time of heating, and cooling the rolled molybdenum plate blank on a cold bed; 4), rolling the cooled molybdenum plate blank till the thickness (including the steel capsule) of the molybdenum plate blank is between 19 and 24 millimeters; 5), leveling the rolled molybdenum plate blank, removing the steel capsule, cutting the molybdenum plate blank and obtaining semi-finished molybdenum plates; and VI, performing the vacuum heat treatment of the semi-finished molybdenum plates, and obtaining the large-size molybdenum plates for the sputtering targets of the LCD flat-panel display. The large-size molybdenum plates for the sputtering targets of the LCD flat-panel display, which are prepared by the method of the invention, have flat surfaces, the density of the plates is more than or equal to 10.15g / cm<3>, the microscopic structure of the plates is uniform equiaxial structure, and the average grain size of the plates is not more than 200 mu m.

The invention relates to a low-manganese aluminum alloy for a cathode foil and a preparation method thereof. The low-manganese aluminum alloy is characterized by comprising the following chemical components in percentage by weight: 0.30-0.60% of Mn, 0.20-0.40% of Fe, 0.10-0.20% of Cu, Si not higher than 0.15%, Mg not higher than 0.08%, Zn not higher than 0.05%, Ti not higher than 0.15%, other impurity elements with single content not higher than 0.05%, other impurity elements with total content not higher than 0.15%, and the balance of Al. According to the low-manganese aluminum alloy of the present invention, the content of alloy elements is reduced, so that the alloy strength is reduced, the rolling force during rolling is reduced, the processing difficulty is reduced, and the energy is saved; and the cathode foil produced by the low-manganese aluminum alloy has the advantages of good surface quality, no dust, uniform structure and high specific capacitance.

The invention discloses a rolling method for preventing hot-rolled strip steel with the thickness of 4mm or less from deviating. The convexity of the strip steel is controlled to be 40-60 microns, the wedge is controlled to be smaller than or equal to 20 microns, the precision rolling temperature is 1,060-1,100 DEG C, and the finishing rolling temperature is controlled to be 890-910 DEG C; three front precision rolling machine frames F1, F2 and F3 are subjected to great rolling reduction, the rolling reduction rate is 33-56 percent, the tension of the strip steel is adjusted from conventional 5-9MPa to 8-16MPa, the rolling reduction rate of four rear machine frames F4, F5, F6 and F7 is 11-35 percent, and the tension of the strip steel is adjusted from conventional 8-13MPa to 14-23MPa. Technical parameters of a rolling process are optimized, the rolling method in which rolling force plays a leading role is changed, and the rolling method in which tension plays a leading role is innovated; the influences of non-uniform horizontal temperature, wedging and cambering in the rolling process of the strip steel are overcome by increasing the tension, the rolling method is easy to operate and has a convenient adjusting function, and the phenomenon of small specification deviation is greatly reduced, so that the success rate of small specification rolling is improved from 73 percent to 99 percent.

The invention relates to a rolling mill roll cooling device which comprises a cooler (2) used for jetting emulsion, and a compression roller device, wherein the cooler is fixedly connected at the side of the upper part of a roll bearing seat (8) by connecting plates (11) arranged at the two ends; the outer side of a box body of the cooler is provided with a water inlet (9), and the inner side thereof is provided with a water outlet (10); the compression roller device comprises a compression roller (1) and a support arm (5), wherein the compression roller is fixedly connected on the roll bearing seat by a bolt b (4) through the support arm, and the compression roller is evenly contacted with a roll (6) along the axial direction under the action of self weight; one cooler and one compression roller device are arranged in one group, and two groups of the coolers and compression roller devices are symmetrically arranged at the two sides of a vertical centre line of the roll; the emulsion firstly enters into the cooler through the water inlet and then evenly flows onto the surface of the roll through the water outlet; and a semi-closed space is formed by the compression rollers arranged at the two sides of the roll and a baffle (7) arranged on the support arm, so that a certain quantity of emulsified liquid is effectively maintained at the upper part of the roll, the roll is well cooled and lubricated, and the emulsified liquid flows away through a nick of the semi-closed space.

The invention discloses a vibrating twin-roll thin strip casting machine, which is characterized in that: a pressing mechanism (1) is connected with a non-vibrating side bearing seat (3) equipped with a non-vibrating side casting roll (4), and the non-vibrating side bearing The seat (3) is installed on the slide rail (7) of the frame (2), the bearing (10) of the casting roll (9) on the vibration side is installed in the bearing seat (10) on the vibration side, and the bearing seat (3) on the non-vibration side ) and the vibration side bearing seat (10) are placed horizontally on the frame (2), and the vibration device is installed on the lower part of the vibration side bearing seat (10); the fixed plate (17) connects the left Backing plate (12) is fixedly connected with vibrating side bearing block (10), fixed plate (18) is fixedly connected right backing plate (14) and frame (2) with bolt (19), left backing plate (12) and right Linear motion roller bearings (13) are installed between the backing plates (14). The invention can change the solidification mechanism, so that the position of the solidification end point can be raised to form the solidification end surface, so that the casting and rolling speed can be increased. At the same time, the invention also has the functions of homogenizing components, eliminating internal cracking and segregation, and can greatly improve product quality. This machine can be used for forming processing of ferrous metal, non-ferrous metal and composite material strip or plate.

The invention relates to a magnesium alloy wide plate casting-rolling machine, which is used for directly casting and rolling liquid magnesium alloy into a wide cast-rolled plate blank with the width of 800 to 1,800 millimeters. The casting-rolling machine is characterized in that the casting-rolling machine is a three-roll casting-rolling machine, has a pair of equal diameter double-drive rolls with the diameter of 800 to 1,200 millimeters and the same turning directions, namely an upper driving roll 1 and a lower driving roll 3, and has a driven roll 2 with the diameter of 200 to 600 millimeters, wherein the lower driving roll 3 and the driven roll 2 form a casting-rolling roll pair which has an internal water-cooled structure, the upper driving roll 1 is a supporting roll for the driven roll 2, and the plane of the axes of the three rolls is inclined towards one side of a casting nozzle; and the inclination angle is 0 to 15 degrees. The unequal diameter casting-rolling working rolls of the inclined three-roll casting-rolling machine have the advantages of a two-roll casting-rolling machine and a four-roll casting-rolling machine, can overcome the defects of the two-roll casting-rolling machine and the four-roll casting-rolling machine, and have the characteristics of high solidifying and cooling speed, high rolling pressure and good plate shape control. The three-roll casting-rolling machine casts and rolls the liquid magnesium alloy into a cast-rolled plate belt with the width of 800 to 1,800 millimeters and with large width, small deformation amount and good plate shape.

The invention relates to a preparation method for synchronously cold-rolling iron foil by using a laminated method. The method belongs to the technical field of rolling. The method comprises the following steps of: selecting a plurality of thick iron pieces and a plurality of thin iron pieces, wherein the thin iron pieces are clamped by the thick iron pieces to form a laminated structure; respectively carrying out heat treatment on each laminated layer of materials before rolling, and coating a lubricating material among laminations; and delivering the combination laminated structure to a common two-roller or four-roller rolling machine for cold-rolling and thinning, and thinning the thin iron pieces to iron foil with required thicknesses by selecting an appropriate reduction ratio and rolling passes. With the adoption of the preparation method for synchronously cold-rolling the iron foil by using the laminated method, the defects of low efficiency, large environment pollution, complex equipment, high cost, and the like of other preparation method are overcome, and the preparation method is suitable for preparing an extremely thin material of materials of pure iron, iron alloy and the like. The preparation method has the characteristics of being simple in process and convenient for operation. The prepared iron foil has high dimensional precision, good shape, and good flatness and surface quality. The preparation method has the characteristics of being high in efficiency, convenient, energy-saving, low in cost and the like and is suitable for industrial application.

The invention discloses a closed roller gap threading and rolling method for a double-rack cold-rolling mill. The control sequence of the threading process of the double-rack cold-rolling mill and the pressing-down sequence of a hydraulic pressing-down cylinder are adjusted, rolling and threading can be achieved under the closed roller gap predetermined value and belt pressure, strip steel deflection can be avoided by dynamically adjusting a pressing-down system, different roller bending force and tension are used for adjusting strip steel, and accordingly smooth closed roller gap threading and rolling of various specifications of products can be guaranteed; the lubricating and cooling effect of emulsified liquid is used for improving the rolling condition so as to lower rolling force. The method comprises the following steps that first, strip steel information is called-in or input, the production plan is made and then is sent to a computer, rolling parameters needed by rolling are obtained through a model in the computer, and the computer sends the rolling parameters to a process control VME system to be used as control parameters; second, strip steel threading is conducted, when a threading and rolling strip steel head reaches a coiling machine jaw, the length is preset, production begins according to the normal rolling sequence, and it is guaranteed that double-rack rolling stability can be achieved and the yield of the double-rack cold-rolling mill can be improved at the same time.

At present, an ultra-fast cooling technology is mainly applied to cooling of steel after two-stage controlled rolling. The invention discloses an optimal controlled rolling method adopting ultra-fast cooling to control an Austenite structure and belongs to the technical field of metallurgy. According to the method, the steel can be completely rolled in a steel billet Austenite recrystallization zone, rolling temperature and pass reduction rate can be simultaneously precisely controlled, an ultra-fast cooling system is immediately adopted to cool the rolled steel to a phase transition point after rolling, and then different cooling paths are adopted according to needs to control the phase transition of the steel. According to the method disclosed by the invention, the ultra-fast cooling is adopted, so that coarsening of the small re-crystallized Austenite structure can be effectively inhibited, and the refining effects of dynamic recrystallization and sub-dynamic recrystallization against the Austenite structure in a high-temperature rolling process can be retained. The product manufactured by the method disclosed by the invention and the steel manufactured by the two-stage controlled rolling process have equivalent mechanical properties, so that the rolling time is simultaneously reduced by 2-4min in comparison with the two-stage controlled rolling process at a waiting temperature and low-temperature atmosphere in the rolling process.

A hot-pressed oil composition from water dispersible clay consists of lubricant base with viscosity 5-300mm2 / s at 40 degree, 0.1-20wt% sulfur-contained extreme pressure agent from alkyl polysulfide, mineral oil sulfide and thiopoly alcohol ester, 0.1-15wt% phosphor-contained anti-scuff agent from organic phosphate, phosphonate ester, phosphate ester, acid amine salt organic phosphate, amine salt phosphate ester, phosphoamidster, dialkyl phosphateodithioate, dimercaptothioliazole phosphorodithioate and acid phosphate imidazoline salt and 0.001-0.5wt% clay wear-resistant anti-slip agent emulsified by clay suspensoid. It has excellent dispersibility, abrasion resistance, lubricity and degradability and has no environmental pollution.

The invention discloses a rolling method for reducing edge cracking of a continuous rolling mill. When a weld joint of a strip steel reaches the preset distance of all the racks of the continuous rolling unit, the lifting amount of a roller gap of each machine frame is controlled and enables the roller gap of the strip steel to enter into each machine frame, so the way of increasing the thicknessof the welding seam and reducing the rolling force of the welding seam area is achieved, edge split and strip breakage accidents caused by ultra-thin strip heads and excessively large rolling force can be avoided, and the smooth rolling is guaranteed. The additional tension value of each machine frame is increased, then the set tension value of each machine frame is obtained, the strip steel is rolled according to the set tension value, so that the tensile stress of the welding seam area is reduced, edge split can be avoided or reduced, so that the phenomenon of strip breakage caused by edge split of the front region and the rear region of the weld joint is avoided, and free rolling of the rolling mill is facilitated.

The invention relates to a high-strength low-crack sensitive slab and a manufacture method thereof. The slab is prepared from the following chemical components in percentage by weight: 0.06-0.09 percent of C, 0.1-0.3 percent of Si, 1.35-1.55 percent of Mn, 0.02-0.04 percent of Nb, 0.02-0.04 percent of V, 0.01-0.02 percent of Ti, 0.15-0.25 percent of Ni, 0.1-0.2 percent of Cr, 0.15-0.25 percent of Cu, 0.02-0.04 percent of Al, not more than 0.006 percent of N, not more than 0.016 percent of P, less than 0.004 percent of S and the balance of Fe and impurities. The manufacture method of the high-strength low-crack sensitive slab comprises the following sequential steps of: heating a casting blank; descaling; controlling rolling; controlling cooling, straightening, and the like. The slab of the invention can reach the thickness of 80 mm, and the yield strength over 420 MPa and has excellent comprehensive mechanical performance, simple and convenient production process and low cost.

The invention relates to a double-zero aluminum foil for an alloying high-performance aseptic packaging material. The double-zero aluminum foil is characterized by comprising chemical compositions including, by mass, 0.48%-0.55% of Si, 0.58%-0.66% of Fe, 0.005%-0.01% of Cu, 0.0015%-0.005% of Mn, 0.0015%-0.005% of Ni, less than 0.001% of Zn, 0.02%-0.05% of Ti, less than 0.0003% of Zr and the balance aluminum. The double-zero aluminum foil for the alloying high-performance aseptic packaging material and the production process of the double-zero aluminum foil are high in production efficiency, high in finished product rate, low in cost, good in plate shape and stable in quality.

The invention belongs to the technical field of double metal composite material rolling, and in particular to a method for improving the bonding strength of double metal composite boards through applying pulse current to upper and lower rollers in the rolling process. The method comprises the main steps of treatment of coating layer metal and base layer metal before rolling, communication of the pulse current to the upper roller or the lower roller and startup of a rolling mill for rolling. The rolling method for applying the pulse current to the rollers is to add a pulse power supply in the rolling process; and the pulse current output by positive and negative poles of the pulse power supply flows through the rollers and the boards through different modes to form a closed loop. The rolling method has the beneficial effects of acceleration of the element dispersion of the coating layer metal and the base layer metal, improvement of the dispersion efficiency, reduction of the rolling force, improvement of the bonding strength and improvement of the rolling production efficiency.

The invention provides a unilateral roll system rolling mill and a plate rolling method, and belongs to the field of plate machining equipment. The rolling mill mainly comprises a rack, an upper rollsystem and a lower plate rolling device. The rack is used for allowing other parts of the whole rolling mill to be fixedly mounted. The upper roll system is horizontally mounted on the rack and comprises an upper roll capable of rotating around the horizontal axis. The lower rolling plate device is arranged below the upper roll, and comprises a lower rolling plate horizontally arranged below the upper roll. A roll gap is arranged between the upper roll and the lower rolling plate, and a rolled piece passes the roll gap to be rolled. According to the rolling mill and the method, the function ofasymmetrical rolling is achieved, the horizontal component of positive pressure is increased, and the stress state of the rolled piece is changed; and rolling force can be reduced, the shearing effect can be enhanced, and the plastic deformation capacity can be improved.

The invention discloses a hot-rolled composition with organic silicon anti-friction antilubricant, which comprises the following parts: (I) lubricant basic oil with viscosity at 5-300mm2 / s at 40 deg.c, (II) 0.1-20wt% sulphur extreme pressure agent with one or more material from alkyl polysulfide, sulfur ore oil and sulfur polyol ester, (III) 0.05-15wt% phosphorus antiwear agent with one or more material from phosphate, phosphonate, phosphite ester, acid phosphate ester, phosphite ester amine salt, phosphamide ester, dialkyl dithiophosphate, dimercaptothiodiazole dithiophosphate ester and acid phosphate imidazoline salt, (IV) 0.1-25% organosilicon abrasion resistance antilubricant with organic modified clay, plastic and alkyl benzene, insaturated ester oil, animal and plant oil.

The invention relates to steel for a superhigh-strength hot rolling automobile structure and a preparation method thereof, belonging to the field of alloy steel production processes. The steel comprises the following components: 0.08 percent to 0.12 percent of carbon, 0.10 percent to 0.50 percent of silicon, 1.5 percent to 2.50 percent of manganese, less than 0.02 percent of phosphorus, less than 0.01 percent of sulfur, 0.02 percent to 0.05 percent of aluminum, 0.08 to 0.25 percent of vanadium, 0.03 percent to 0.06 percent of nitrogen and the balance of Fe and other inevitable impurities. The production process comprises the following steps of: converter smelting; external refining; continuous casting; hot rolling and reeling. The main process parameters are as follows: the heating temperature of continuous casting slabs is between 1,150 and 1,220 DEG C, the reeling temperature is between 500 and 650 DEG C, and the hot rolling total reduction ratio is more than 85 percent. According to the steel, vanadium-nitride micro alloying is adopted, vanadium precipitation is promoted by enhancing nitrogen, grains are refined, and precipitation strengthening and fine-grain strengthening are used as main strengthening measures, so that the yield strength is more than 700 MPa, the tensile strength is more than 800 MPa, the total elongation rate after fracture is more than percent, and the steel is used for high-strength automobile structures with high plasticity and good cold bending properties.

The invention relates to a double-rack six-roller UCM leveling and double cold reduction unit for production of a tinned substrate. The double-rack six-roller UCM (Tandem Cold Mill) leveling and double cold reduction unit comprises a No.1 rack and a No.2 rack; the No.1 rack or the No.2 rack comprises an upper supporting roll, a lower supporting roll, an upper middle roll, a lower middle roll, an upper working roll, a lower working roll, a lower middle roll bending cylinder, a lower working roll positive bending cylinder, a lower working roll side pushing cylinder, a lower working roll negative bending cylinder, an upper working roll negative bending cylinder, an upper working roll side pushing cylinder, an upper working roll positive bending cylinder, an upper middle roll positive bending cylinder, a roll shifting device; both an anti-winding guide plate and an outlet guide plate are provided with rubber scrapers. The double-rack six-roller UCM leveling and double cold reduction unit not only is suitable for leveling production of T1 to T5 materials of tinned substrates, but also can be used for production of DR7 to DR10 double cold-reduced tinned plates and also can be suitable for leveling production of a shadow mask band steel, an internal magnetic shielded band steel, a common cold plate and DDQ, EDDQ and IF dead-soft band steels; operation stability of a rolling mill, shape control accuracy and product quality are greatly improved.

The invention discloses a thin belt material single-rack continuous mill and an implementation method. The thin belt material single-rack continuous mill is provided with a plurality of work rollers which have the same or different diameters. The work rollers include drive rollers and driven rollers. Multi-pass asynchronous rolling or asynchronous and synchronous rolling is implemented by controlling the linear speeds of the drive rollers. Along with the increase of the rolling pass number, the linear speeds of the rollers are sequentially increased in the rolling direction, and the last pass can adopt either asynchronous rolling or synchronous rolling. When synchronous rolling is adopted, the roller diameters of the last two rollers are the same, and the linear speeds of the rollers are the same. The thin belt material single-rack continuous mill and the implementation method have the beneficial effects that multi-pass continuous rolling is realized in a single rack, larger rolling reduction can be realized in one rolling length, the rolling production efficiency of an ultra-thin belt is improved, equipment investment and occupied space are reduced, and meanwhile the production, operation and maintenance expenses are reduced accordingly; and the transverse rigidity of the rollers can be improved, the transverse thickness deviation of a rolled piece is small, and the plate shape quality of products can be improved.

The invention discloses a method for preparing a metal laminated composite material by rolling and compounding at approaching solidus curve temperature. The preheating temperature approaches a soliduscurve of at least one metal plate in a plate blank by controlling the preheating temperature of the plate blank before rolling, and the plate surface at one side or the plate surfaces at both sides of the interface position of the metal plate generate a liquid phase by rolling deformation heat by controlling the rolling speed, thereby the surface of the metal plate is in a liquid state or a semi-solid state; the compounding barrier of surface oxidation films is damaged by the liquid phase under the action of compound rolling pressure, and the metallurgical bonding of the surfaces at both sides is realized. The invention is suitable for compounding materials which are difficult to control the liquid phase and difficult to adopt liquid-liquid or solid-liquid compounding and materials whichare difficult to deform in the solid state and difficult to adopt conventional solid-solid compounding; the first press can be greatly reduced, the needed rolling force is less, and the bonding strength can be improved without subsequent heat treatment; and the invention can be used for the prior common rolling machine used at a large scale without special equipment and has less required energy consumption.

The invention discloses a magnesium alloy wide plate three-roll casting-rolling mill. The casting-rolling mill has the advantages of the two-roll casting-rolling mill and the four-roll casting-rolling mill, overcomes the defects thereof and is characterized by fast solidifying speed and cooling speed, high rolling pressure and good plate shape control. The three-roll casting-rolling mill can be used to cast and roll liquid magnesium alloy to casting-rolling strips with 800mm-1800mm of width, large deformation and good plate shape; and the main body of the casting-rolling mill is designed to be a reducing three-roll casting-rolling mill. By using the three-roll casting-rolling mill, the technological parameter indexes, such as stable liquid stream, uniform current distribution, stable temperature field, large unit rolling pressure and good plate shape, of the casting and rolling requirements of the magnesium alloy wide sheet are easy to realize.