Patent classifications
B21B37/46
METHOD FOR PRODUCING A METAL WORKPIECE
The invention relates to a method for producing a desired metal workpiece (134), the method comprising: producing an elongate finished material (116; 222) by hot rolling, wherein a first data record (112) is assigned to the finished material (116; 222), wherein the finished material (116; 222) is logically divided in the longitudinal direction thereof into a plurality of first segments (118), wherein the first data record, for each of the first segments (118), includes first physical data (228) characterizing the segment; and working the finished material (116; 222) using a processing process to obtain the desired metal workpiece (134), wherein the processing process is at least partially controlled based on the first physical data (228) characterizing the first segments (118) that are logically assigned to the finished material (116; 222).
METHOD FOR PRODUCING A METAL WORKPIECE
The invention relates to a method for producing a desired metal workpiece (134), the method comprising: producing an elongate finished material (116; 222) by hot rolling, wherein a first data record (112) is assigned to the finished material (116; 222), wherein the finished material (116; 222) is logically divided in the longitudinal direction thereof into a plurality of first segments (118), wherein the first data record, for each of the first segments (118), includes first physical data (228) characterizing the segment; and working the finished material (116; 222) using a processing process to obtain the desired metal workpiece (134), wherein the processing process is at least partially controlled based on the first physical data (228) characterizing the first segments (118) that are logically assigned to the finished material (116; 222).
CONTROL SYSTEM, CONTROL METHOD, CONTROL DEVICE, AND PROGRAM
A control system is a control system of casting and rolling equipment having a twin roll-type continuous casting machine, a rolling mill, and a conveyor. The control system includes a rolling mill control unit that controls the rolling mill by any one of controls including a rolling control and an open control, a conveyor control unit that controls the conveyor by any one of controls including a tension control and a speed control, a first control unit that controls to perform the rolling control and the tension control, a second control unit that controls to perform the open control and the speed control, and a third control unit that controls to resume the tension control and the rolling control.
CONTROL SYSTEM, CONTROL METHOD, CONTROL DEVICE, AND PROGRAM
A control system is a control system of casting and rolling equipment having a twin roll-type continuous casting machine, a rolling mill, and a conveyor. The control system includes a rolling mill control unit that controls the rolling mill by any one of controls including a rolling control and an open control, a conveyor control unit that controls the conveyor by any one of controls including a tension control and a speed control, a first control unit that controls to perform the rolling control and the tension control, a second control unit that controls to perform the open control and the speed control, and a third control unit that controls to resume the tension control and the rolling control.
Method for setting roll gap of sinusoidal corrugated rolling for metal composite plate
A method for setting a roll gap of sinusoidal corrugated rolling for a metal composite plate includes steps of: determining entrance thicknesses, exit thicknesses, a width, and a rolling temperature of a difficult-to-deform metal slab and an easy-to-deform metal slab; detecting a roll speed and an entrance speed of a metal composite slab, obtaining a roll radius and friction factors; determining parameters of a sinusoidal corrugating roll and a quantity of complete sinusoidal corrugations on the sinusoidal corrugating roll; then calculating a time required for a complete corrugated rolling; calculating a rolling force at any time during the sinusoidal corrugated rolling of the metal composite plate; and calculating the roll gap S of the corrugated rolling at any time according to the rolling force F, and configuring a rolling mill to have the roll gap S according to an actual rolling schedule before normal production.
Method for setting roll gap of sinusoidal corrugated rolling for metal composite plate
A method for setting a roll gap of sinusoidal corrugated rolling for a metal composite plate includes steps of: determining entrance thicknesses, exit thicknesses, a width, and a rolling temperature of a difficult-to-deform metal slab and an easy-to-deform metal slab; detecting a roll speed and an entrance speed of a metal composite slab, obtaining a roll radius and friction factors; determining parameters of a sinusoidal corrugating roll and a quantity of complete sinusoidal corrugations on the sinusoidal corrugating roll; then calculating a time required for a complete corrugated rolling; calculating a rolling force at any time during the sinusoidal corrugated rolling of the metal composite plate; and calculating the roll gap S of the corrugated rolling at any time according to the rolling force F, and configuring a rolling mill to have the roll gap S according to an actual rolling schedule before normal production.
ROLLING TAKING FREQUENCY BEHAVIOR INTO ACCOUNT
A roll stand of a rolling mill is supplied with a metal strip by an upstream supply device at an in-feed speed (v), with said metal strip being rolled in the roll stand. A measuring device between the supply device and the roll stand detects a respective thickness value (d) of the metal strip for consecutive sections of the metal strip and supplies said value to a control device of the rolling mill. The control device determines final thickness deviations based on the preliminary thickness deviations. The control device determines a respective control value (A2, A3) for the roll stand and/or the supply device for the sections of the metal strip based on the final thickness deviation of the respective section of the metal strip and the final thickness deviations of multiple preceding and/or subsequent sections of the metal strip.
ROLLING TAKING FREQUENCY BEHAVIOR INTO ACCOUNT
A roll stand of a rolling mill is supplied with a metal strip by an upstream supply device at an in-feed speed (v), with said metal strip being rolled in the roll stand. A measuring device between the supply device and the roll stand detects a respective thickness value (d) of the metal strip for consecutive sections of the metal strip and supplies said value to a control device of the rolling mill. The control device determines final thickness deviations based on the preliminary thickness deviations. The control device determines a respective control value (A2, A3) for the roll stand and/or the supply device for the sections of the metal strip based on the final thickness deviation of the respective section of the metal strip and the final thickness deviations of multiple preceding and/or subsequent sections of the metal strip.
Method and computer program product for calculating a pass schedule for a stable rolling process
A method and a corresponding computer program product calculate a pass schedule for a stable rolling process when rolling metal strip in a rolling mill. The offset here is varied until the calculated target horizontal force satisfies a predefined limit criterion. The satisfaction of the limit criterion means that the set of rolls and the rolling process are stable. For cases in which a sole iteration of the offset of the working roll does not result in the limit criterion being satisfied, the present invention provides that the draws on the material to be rolled are then changed on the feed side and/or on the outlet side of the rolling stand with constant offset until the calculated target horizontal force satisfies the limit criterion.
Method and computer program product for calculating a pass schedule for a stable rolling process
A method and a corresponding computer program product calculate a pass schedule for a stable rolling process when rolling metal strip in a rolling mill. The offset here is varied until the calculated target horizontal force satisfies a predefined limit criterion. The satisfaction of the limit criterion means that the set of rolls and the rolling process are stable. For cases in which a sole iteration of the offset of the working roll does not result in the limit criterion being satisfied, the present invention provides that the draws on the material to be rolled are then changed on the feed side and/or on the outlet side of the rolling stand with constant offset until the calculated target horizontal force satisfies the limit criterion.