44results about "Work heating devices" patented technology

The application provides a billet raw material heating device for steel bar processing, and belongs to the technical field of billet processing equipment. The device solves the technical problem that the existing heating device cannot timely remove the iron oxide skin. The billet raw material heating device for steel bar processing comprises a heating frame, a heating channel formed in the heating frame, a pair of stabilizing frames fixed on the heating frame and located at the two ends of the heating channel, a pair of annular track frames fixed on the two stabilizing frames, a conveying frame arranged on each annular track frame, a pair of stabilizing arms fixed on each conveying frame, one end of each stabilizing arm being slidably connected with the corresponding annular track frame, a pair of clamping frames slidably arranged in each conveying frame, a conveying wheel rotatably connected to each clamping frame, and a servo motor fixed in each clamping frame. The device has the advantage of cleaning the iron oxide skin on the surface of the billet by using the high-pressure and high-temperature gas generated during heating.

The embodiment of the application provides a method for controlling the bending degree of screw thread steel, comprising the following steps in sequence: smelting, smelting raw materials to obtain molten steel; continuous casting, pouring the molten steel into a continuous casting machine to obtain a continuous casting billet; heating, transferring the continuous casting billet to a heating furnace for heating to obtain a rolling piece; rolling, rolling the rolling piece to obtain screw thread steel; cooling, cooling the screw thread steel by using a water penetrating box; and shearing, shearing the cooled screw thread steel by using a double-length shearing machine. In the application, the temperature difference between the upper surface and the lower surface of the rolling piece is controlled to be within 10 DEG C, so that the uniformity of the temperature distribution from the upper surface to the lower surface of the rolling piece is ensured, and the possibility of screw thread steel bending is reduced; a back-blowing air pipe is arranged in the water penetrating box, water on the surface of the screw thread steel can be blown dry, water drops are prevented from being concentrated on the lower surface of the screw thread steel, and the temperature difference between the upper surface and the lower surface of the screw thread steel is effectively reduced.

The present application relates to a method for manufacturing a cold-rolled steel sheet using a transverse full-width heating device and a cold-rolling mill, the transverse full-width heating device heating a steel sheet over the entire width of the steel sheet, the cold-rolling mill being disposed on the downstream side in the rolling direction relative to the transverse full-width heating device and rolling the steel sheet, wherein the method includes a step of heating the steel sheet using the transverse full-width heating device in such a manner that the temperature at the widthwise end of the steel sheet on the entry side of the cold-rolling mill is higher than the temperature at the widthwise center of the steel sheet.

This invention relates to the field of steel production technology, specifically to a production line and method for shortening the non-cooled section of high-speed wire rod under the TMCP process. The production line includes a loading platform connected to the furnace inlet via an inlet roller conveyor. The furnace outlet is connected to the roughing mill, No. 1 flying shear, intermediate mill, No. 2 flying shear, pre-finishing mill, and modular mill via an outlet roller conveyor. The modular mill outlet is sequentially connected to No. 1 pinch roll, No. 3 flying shear, and finishing mill. The finishing mill outlet is sequentially connected to No. 2 pinch roll, No. 4 flying shear, mini mill, No. 3 pinch roll, No. 4 pinch roll, front pinch roll of the wire rod feeder, and the wire rod feeder. This invention enables minimal shearing of the non-cooled section at the head of high-speed wire rod produced using the TMCP process, reducing the length of the non-cooled section from 50-60 meters to 3-10 meters.

A forge and method of forging is provided. The forge converts an asymmetric railroad rail to a symmetric railroad rail through a combination of vertical and horizontal forging operations. The rail is linearly translated to heating and forging stations on a roller table. The asymmetric to symmetric conversion can be completed without the need for reorienting the rail except along a single translational axis.

The present application belongs to the technical field of bearing steel hot rolling, and particularly relates to a hot-rolled bearing steel bar reticular carbide control model. The control model sets the roughing temperature range, the finishing temperature range, the temperature range entering the reducing and sizing unit, and the temperature range after the second water cooling in the control model, and combines the preset rolling specification and the performance of the cooling equipment. Since the parameters of the rolling system corresponding to the preset rolling specification are uniquely determined, the rolling speed of the rolling system and the fixed parameter data of the cooling equipment are determined during rolling, forming a fixed combination model of the rolling speed and the rolling cooling data suitable for the preset rolling specification bar. During production, only the respective data based on the rolling specification needs to be input in the computer control module or the corresponding rolling model needs to be directly called, so that the rolling quality is stably controllable.

The invention relates to a device (1) for the thermal treatment of a metallic workpiece (2) conveyed in a conveying direction (R1) of a production line (100) comprising a rolling device (51, 61), comprising a first temperature change module (10) and a second temperature change module (20), wherein the first temperature change module (10) has a higher nominal power density than the second temperature change module (20) and is configured to reduce the temperature (T) of the metallic workpiece (2) to a first outlet temperature (T A1 ) to change; and wherein the second temperature change module (20) is configured to reduce a temperature difference between a surface temperature of the metallic workpiece and a core temperature of the metallic workpiece to ≤ 50 °C. The invention further relates to a production line (100), a method and the use of such a device (1) and such a production line (100).

The application relates to the technical field of preparation of dissimilar metal composite plate strips, and proposes a device and a method for cooperatively preparing dissimilar metal plate strips through laser and pulse current, which comprises a laser-pulse current composite rolling mechanism, a rolling mill feeding mechanism, a laser, a pulse current applying mechanism and the like.Two dissimilar metal plate strips are transported to the laser-pulse current composite rolling mechanism through the rolling mill feeding mechanism, and the rolling mill feeding mechanism can adjust the transport angle of the two dissimilar metal plate strips, the plate tension and the misalignment degree of the two dissimilar metal plate strips according to actual needs through two tensioning devices.The composite effect of laser pulses and electric current makes the two different metal materials well combined at the micro level.The production of double-layer composite dissimilar metal plates with high precision and high efficiency is realized, and the application prospect is important.The composite metal plate strips which are lighter, stronger and more durable can be produced, and the demand for high-strength and high-performance materials can be met.

The application relates to the technical field of metallurgy, and particularly discloses a 5-6mm normalized rolled steel plate for low-temperature pressure containers and a production method, which is produced by adopting a coiling-rolling controlled rolling and controlled cooling normalized rolling process to replace a hot rolling and heat treatment normalized process; according to the heating, rolling and cooling process characteristics of the 5-6mm thin specification coiling rolling, the chemical composition of the steel plate is as follows in percentage by weight: C: 0.05-0.10%, Si: 0.10-0.30%, Mn: 1.40-1.60%, P<=0.015%, S<=0.006%, Nb: 0.020-0.040%, Cr: 0.10-0.20%, Als: 0.015-0.040%, Ti: 0.015-0.020%, and the rest is Fe and residual elements; the mechanical properties of the 5-6mm thickness specification low-temperature pressure container steel plate produced by the application meet the strict requirements of low-temperature impact toughness at-40 DEG C.

The present application belongs to the technical field of oriented silicon steel production, and discloses a kind of medium-thickness slab oriented silicon steel hot continuous rolling production manufacturing method.The flow of the production manufacturing method includes: steelmaking→continuous casting→soaking→hot rolling→normalizing→cold rolling→annealing, wherein the soaking temperature and soaking time need to meet a specific formula, and it also relates to the control of continuous casting and hot rolling process.The present application starts from slab thickness, heating process and organization control, by adopting the hot rolling heating process suitable for slab thickness, reduces the inhibitor segregation in the hot rolling process, obtains suitable inhibitor state, effectively improves the performance of finished product, reduces the iron loss P 1.7 / 50 of oriented silicon steel finished product by about 5% compared with the thicker slab method, and the whole roll fluctuation is reduced to ±0.01 W / kg.

The application provides a rolling method of TA19 titanium alloy sheet material, comprising the following steps: S1, slab heating; S2, first fire breakdown rolling; S3, cutting into multiple one-fire rolling slabs; S4, heating the obtained multiple one-fire rolling slabs; S5, water cooling the slabs after S4; S6, heating the cooled slabs; S7, second fire rolling of the slabs after S6 to obtain two-fire rolling slabs; S8, heating the slabs after S7; S9, third fire rolling of the slabs after S8 to obtain three-fire rolling slabs; S10, cutting the three-fire rolling slabs of S9; S11, stacking and combining the obtained multiple three-fire rolling slabs in groups of 2-4, coating isolation paint between the two slabs, and wrapping and welding with wrapping plates every four groups; S12, heating the slabs after S11 wrapping and combining; S13, wrapping rolling of the slabs after S12 heating; and S14, obtaining the finished product TA19 slab by sequentially unwrapping the slabs after S13 wrapping rolling, primary heat treatment, hot straightening, secondary heat treatment and surface treatment.

Hot rolling equipment for hot rolling a steel material containing Cu, the hot rolling equipment including: a heating furnace that heats the steel material to a predetermined temperature after casting; a rough rolling apparatus including a plurality of rolling mills that rough roll on the steel material that has been heated in the heating furnace; a finish rolling apparatus that finish rolls on the steel material that has been rough rolled by the rough rolling apparatus; and a removal apparatus that removes a target region including cracks caused by a Cu-rich layer that is present at a surface side of the steel material that is being rough rolled or has been rough rolled and in which a concentration of Cu components is higher than a concentration of Cu components in a base material of the steel material, wherein the removal apparatus is provided downstream of a rolling mill located furthest upstream among the plurality of rolling mills in the rough rolling apparatus in a transport direction of the steel material and upstream of the finish rolling apparatus.

The present application relates to the field of forging forming, in particular to a ring rolling process heating constant temperature device and a heating method, wherein the device comprises a heating mechanism, a moving mechanism, a monitoring mechanism and a control mechanism; the moving mechanism is used to drive the heating mechanism to move to adapt to ring forgings under different diameters; the monitoring mechanism comprises an infrared thermometer and an infrared range finder, the infrared thermometer and the infrared range finder are both arranged on the extension line of the line connecting the main roller and the core roller, and are located on the side of the core roller away from the main roller; the control mechanism comprises a controller, the infrared thermometer, the infrared range finder and the power supply are electrically connected with the controller respectively. Through the cooperation of the controller, the infrared thermometer and the heating mechanism, the local temperature drop problem of the ring piece in the machining process is effectively overcome, the near isothermal ring rolling process can be realized, the uniformity and consistency of the ring piece organization are significantly improved, and defects such as coarse grains and cracking are avoided.

The application discloses a forming device for processing titanium alloy thin-wall pipe, and belongs to the technical field of metal processing forming equipment. A pre-pressing heating mechanism, a high-frequency heating rolling mechanism and a cold-drawing pipe forming mechanism are arranged on a first supporting base. After a titanium alloy plate passes through the cold-drawing pipe forming mechanism, a cold-drawing pipe is formed. After a pipe seam welding mechanism welds the pipe seam of the cold-drawing pipe, a pipe body is formed. After a stretching mechanism stretches the pipe body, a titanium alloy thin-wall pipe is formed. The titanium alloy plate is pre-pressed and heated and hot-rolled. The titanium alloy plate after being heated and rolled enters a space between a forming block and a forming tire mold to be pre-formed. The titanium alloy plate is continuously formed into a cold-drawing pipe through the outer circumference of a mold core. After a welding gun welds the pipe seam of the cold-drawing pipe, the pipe body is formed. After the stretching mechanism clamps and stretches the pipe body, the titanium alloy thin-wall pipe is formed. The application has the advantages of high working efficiency, low cost, simple operation and high product yield.

The application provides a hot-rolled spring flat steel end crack control method, and belongs to the field of steel rolling processing in the metallurgical industry. The control method comprises uniform heating of the billet before rolling, uniform cooling of the flat steel after rolling, and high-temperature baking of the flat steel end after cooling. The method is a combined special control method of "billet heating uniformity control + flat steel heat preservation and cooling control after rolling + high-temperature baking of the flat steel after cutting", and realizes the generation of no cracks at the end of the hot-rolled spring flat steel. Especially for the cooled flat steel, since the spring flat steel after cutting still has certain stress which cannot be released, high-temperature baking is carried out at the end of the flat steel respectively, so as to ensure that no cracks are generated at the end.

The application belongs to the technical field of rolling treatment, and particularly relates to a rolling method suitable for a Φ16mm three-split hot-rolled ribbed steel bar. The rolling raw material is heated through a 180t stepping beam type heating furnace; the rolling raw material is 165*165*12000mm ribbed steel bar; the heated rolling raw material is sequentially subjected to rough rolling, intermediate rolling and finish rolling; the rolling product after rolling is subjected to cold shearing and automatic bundling in real time through a stepping tooth type cooling bed and in combination with a three-split rolling process of the Φ16mm specification screw thread steel, so that the size of the rolling piece entering the finish rolling unit is accurately ensured.

The invention relates to a device (1) for thermally treating a metal workpiece (2) conveyed in a conveying direction (R1) of a production line comprising a roller arrangement, the device comprising a first temperature-modification module (10) and a second temperature-modification module (20), wherein the first temperature-modification module (10) has a higher nominal power density than the second temperature-modification module (20) and is designed to change a temperature (T) of the metal workpiece (2) to a first outlet temperature (TA1); and wherein the second temperature-modification module (20) is designed to reduce a temperature difference between a surface temperature of the metal workpiece and a core temperature of the metal workpiece to ≤ 50°C. The invention also relates to a production line, to a method, and to the use of such a device and such a production line.

Plant (1) for producing a rolled metal strip (2) in continuous operation, preferably a coupled casting and rolling plant, wherein the plant (1) comprises: at least one casting machine (10) configured to produce a metal strand and transport it in a transport line; at least one rolling stand group (17) configured to transform the metal strand into a corresponding metal strip (2) by rolling during transport along the transport line; a cooling device (18) arranged downstream of the last rolling stand group (17) and configured to cool the metal strip (2); and a flatness measuring roller (31) for measuring the flatness of the metal strip (2), arranged downstream of the cooling device (18).

The present application relates to the field of high-performance threaded steel fine rolling processing, in particular to a high-performance threaded steel fine rolling processing device and its processing technology, which solves the problem that the rolling and embossing two different steps cannot be carried out simultaneously, which may lead to the efficiency of the process flow being low when producing threaded steel. A high-performance threaded steel fine rolling processing device and its processing technology, comprising a first heat insulation conveying belt, one side of the first heat insulation conveying belt is provided with a heating boiler, one side of the first heat insulation conveying belt is provided with a rolling mechanism, the lower end of the rolling mechanism is fixedly connected with a bottom plate, one side of the rolling mechanism is provided with an embossing mechanism, one side of the embossing mechanism is provided with a second heat insulation conveying belt, one side of the second heat insulation conveying belt is provided with a cooling pool, and the bottom plate is provided with a rotating disc. The rotation of the rotating disc drives the embossing block to extrude the two sides of the cylindrical steel blank, so as to form embossing on the surface of the cylindrical steel blank and press it into threaded steel.

Hot rolling equipment for hot rolling a steel material containing Cu, the hot rolling equipment including: a heating furnace that heats the steel material to a predetermined temperature after casting; a rolling apparatus that rolls the steel material that has been heated in the heating furnace; a removal apparatus that is provided downstream of the heating furnace and upstream of the rolling apparatus in a transport direction of the steel material and that removes, from the steel material that has been heated in the heating furnace, a target region including a Cu-rich layer that is present at a surface side of the steel material and in which a concentration of Cu components is higher than it is in a base material of the steel material; and a post-removal descaling apparatus that is provided downstream of the removal apparatus and upstream of the rolling apparatus in the transport direction of the steel material and that descales the steel material using cooling water.

The application discloses a kind of blank tube concentricity automatic correction hot expander, belong to the technical field of hot expander.It includes conveying unit for conveying blank tube, track, intermediate frequency furnace and offline unit, one end of the conveying unit is located on track, the intermediate frequency furnace is between track and offline unit;Pipe feeding unit, the pipe feeding unit is installed on track to continue to advance blank tube transported by conveying unit;Butt joint unit, the butt joint unit is fixedly connected with the end of track close to intermediate frequency furnace;Longitudinal correction unit, the longitudinal correction unit is fixedly connected above butt joint unit;Transverse correction unit, the transverse correction unit is fixedly connected with the end of track and located between butt joint unit and intermediate frequency furnace;A kind of blank tube concentricity automatic correction hot expander of the application avoids the situation that two blank tubes are prone to axial misplacement, radial deviation or extrusion deformation at joint when tail end of a blank tube and head end of next blank tube are butted during conveying.

The application relates to preparation of a dissimilar metal composite plate, in particular to a Mg-Al-Ta composite plate based on corrugated rolling and laser irradiation cooperation and a preparation method, which comprises the following steps: S1, providing an aluminum plate, a tantalum plate and an AZ31 magnesium alloy plate with a bimodal separated non-basal plane texture; S2, performing wave flat room temperature rolling on the AZ31 magnesium alloy plate, so that the surface of the AZ31 magnesium alloy plate combined with the aluminum plate is a concave-convex stripe surface; the aluminum plate and the AZ31 magnesium alloy plate are contacted and stacked and the edges of the two are fixedly connected, so that a Mg-Al composite plate blank is obtained; S3, placing the tantalum plate and the Mg-Al composite plate blank in an atmosphere protection box and filling the box with inert gas; S4, heating the surface of the tantalum plate combined with the aluminum plate in the atmosphere protection box by using a laser irradiation mode; then performing single-pass medium-temperature rolling and compounding; S5, sequentially performing deep cooling treatment and high-temperature diffusion annealing treatment, so that the Mg-Al-Ta composite plate based on corrugated rolling and laser irradiation cooperation is obtained. The Mg-Al-Ta composite plate can improve the interface bonding strength.