TH43890B - Methods and equipment for measurement And adjusting the flattening and / or casing tension of the stainless steel casing Or stainless steel film during cold roll in a frame of 4 rollers, especially in a 20-roller SENDZIMIR roller mill. - Google Patents

Abstract

DC60 (25/08/57) Methods and devices for measurement. And control of the flattening and / or casing tension of the stainless steel casing (1) during the cold roll in a 4-roller frame (2) with at least one control circuit (4) which has a correction section (3). Many allow precise measurements and controls where the flattening disadvantage (10) is determined by comparing the tension vector (8) with the predetermined reference curve (9). Later, where the distribution of the flattening disadvantage (10) over the casing width (7) was analyzed in the analytical module (11) in the mathematically estimated proportioned tension vector (8). And the disadvantage of the flatness (C1 .... Cx) is determined by the real number. They were supplied to the joint control module respectively (12a; 12b) for the actuation of the solving section respectively (3). Methods and measuring devices. And control of flattening and / or edge tension of stainless steel casing (1) during cold roll in multi-roller frame (2), which has at least one control circuit (4), which has a correction segment (3). Many allow precise measurements and controls where the flattening disadvantage (10) is determined by comparing the tension vector (8) with the predetermined reference curve (9). Later, where the distribution of the flattening disadvantage (10) over the casing width (7) was analyzed in the analytical module (11) in the mathematically estimated proportioned tension vector (8). And the disadvantage of flattening (C1..Cx) is defined by the real number. Are supplied to the common control module respectively (12a; 12b) for the actuation of the solving section (3).

Claims (3)

A method for measuring and controlling the flatness and/or sleeve tension of a stainless steel sleeve (1) or stainless steel film (1a) during cold rolling in a multi-roller frame (2), in particular, in a Sendzimir rolling mill (2a), having at least one control circuit (4) having several correction sections (3), wherein the actual sleeve flatness (6) is measured based on a distribution of sleeve tension over the sleeve width (7), characterized wherein the flatness disadvantage (10) is determined by a comparison of the tension vector (8) with a predetermined reference curve (9), after which the distribution of the flatness disadvantage (10) over the sleeve width (7) is analyzed in the analysis module in which mathematically appropriate proportional tension vectors (8/C1...Cx) and the flatness disadvantages (C1...C4) are respectively supplied to the control modules (12a; 12b) for triggering the respective correction sections (3). 2. The method of claim 1 is characterized wherein The distribution of flatness defects (10) over the sleeve width (7) is estimated by the Gauss approximation of the eighth order (LSQ method) and subsequently analyzed in orthogonal sections (C1...Cx). 3. The method of claim one of claim 1 or 2 is characterized wherein the residual damage vector (13) is analyzed and the residual damage vector (13) of the directly selected correction section (3) is controlled. 4. The method of claim 3 is characterized wherein the combination of the residual damage vectors (13) is achieved by means of a loading function, which is performed from the correlation force of the deformity correction section (14) and which incorporates the flatness defects (10) at the end of the specific deformity (14a). 5. The method of claim one of claim 3 or 4 is characterized wherein By summing up the residual damage vector (13) together with the anomaly (14a), the damage quantity is determined by the formed real number value. 6. The method of claims 1 to 5 is characterized wherein the edge tension control (15) is performed separately within the thickness adjustment. 7. The method of claim 6 is characterized wherein, according to the modification section (3), for edge tension control (16), a horizontal displacement of the inner intermediate roller (19) is used. 8. The method of claim 7 is characterized wherein, by means of edge tension control (16) separately for each edge of the sleeve (15), a predetermined sleeve tension in the boundary of a region with the outermost overlap region of the region of the flatness measuring roller (6a) is used. 9. The method of one of claims 6 to 8 is characterized wherein the edge tension control (16) is performed separately and not simultaneously. or simultaneously for both sleeve edges (15) 1 0. The method of claim 7 is characterized wherein the adjustment magnitude for the adjustment of the sleeve tension (15) is determined separately for each sleeve edge (15) by forming a difference between the two adjustment differences, the two outermost measuring values of the flatness measuring rollers (6a) 1 1. A device for measuring and adjusting the flatness and/or sleeve tension of stainless steel sleeves (1) or stainless steel film (1a) for cold rolling in a multi-roller frame (2), in particular, in a Sendzimir 20 roll mill (2a), having at least one control circuit (4) for the correction section (3), comprising a hydraulic adjustment means (17), the irregularities (14a) of the outer support rollers (18), the inner conical intermediate rollers displaced along the axes (19) and/or their correlation functions, is characterized wherein The comparison signal (20) between the reference curve (9) and the actual sheath flatness (22) of the flatness measurement section (6) is connected at the entrance (23) of the control circuit (4) at the first analysis device (11a) and the first control module. and a second independent (12a; 12b) for the formation of the tension vector (8/C1...Cx) and an outlet (24) at the correction section (3) for the rotating hydraulic adjustment method (17) of the roller assembly (2b), and wherein the compensation signal (20) is connected to a second analysis device (11b) and a further third separate control circuit (12c), of which the calculation result (f) is performed by connecting (25) to the correction section (3) of the fault (14a). 1 2. The device of claim 11, wherein the compensation signal (20) is connected between the reference curve (9) and the actual sleeve flatness (22) via the independent analysis device (11b) to the third independent control module (12c) for the fault. The residual flatness (26), wherein the outlet (27) is directed to the connection (25) for the correction portion (3) from the anomaly (14a) 1 3. The apparatus of claims 11 and 12 illustrates wherein the compensation signal (20) between the reference curve (9) and the true sleeve flatness (22) is connected via a third independent analysis device (11c) to a fourth independent control module (12d) for the control of the edge pull control (16), and wherein the outlet (28) is connected to the correction portion (3) of the inner conical intermediate roller (19) 1 4. The apparatus of claims 11 to 13 illustrates wherein the flatness measuring portion (6), disposed in the outlet (5b), is connected to the true sleeve flatness signal line (22) 1 5. The apparatus of claims 11 to 14 illustrates wherein For each flatness defect (10), a motion-specific roller (30) is prepared, which is prepared as a PI controller (31) with a dead sleeve in the entrance (32) 1 6. The device of claim 15 illustrates wherein each motion-specific controller (30), which limits a first analysis device (11a), is provided with a means of modifying parameters (33) and a control display (34) in parallel 1 7. The devices of claims 15 and 16 illustrates wherein, for each motion-specific controller (30), a connector (35) for the control parameters (Ki, Kp) is provided 1 8. The devices of claims 15 to 17 illustrates wherein the motion-specific controller (30) is connected to an operating console (36) 1 9. The devices of claims 11 to 18 illustrate wherein, for the elimination of the motion-specific defect, The residual damage vector (13) is operated in conjunction with the residual damage control devices (37, 38, 39) respectively, with the correction portion (3) of the fault (14a) 2 0. The device of claim 19 is characterized wherein the adjustment regarding the edge tension (16) provides an analysis device (40) for different sleeve edge regions of the flatness measuring roller (6a) with wherein two sleeve edge control devices (41, 42) respectively are connected 2 . 1. The device of claim 20 is characterized wherein two sleeve control devices (41, 42) are connected to the correction portion (3) of the roller, between the conical centers (19) 2. 2. The apparatus of claims 20 and 21 is characterized wherein the two sleeve control devices (41, 42) are interchangeable independently of each other. 2. 3. The apparatus of claims 20 to 22 is characterized wherein, at the two sleeve control devices (41, 42), respectively, the speed control means, the adjustment modifier (43) and the control display (44) are connected.