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    • 1. 发明专利
    • OPERATING METHOD OF TENSION LEVELLER
    • JPS61150719A
    • 1986-07-09
    • JP27344884
    • 1984-12-26
    • NIPPON STEEL CORP
    • OOTA HITOSHIONO MASAOMIURA MASASHI
    • B21D1/05
    • PURPOSE:To obtain good steel strip products with eliminating the unstabilized straightening part generated on a strip steel at the operation starting and finishing times by giving to a leveller roll the specified state of rolling reduction at the operation starting and finishing times. CONSTITUTION:The operation is executed by arranging a deflector roll 3 on the outlet side of leveller roll group 2, speed detector 4, the intermesh setters 9, 10, 11, 12 to perform position setting and the arithmetic unit 13 to set up the intermesh of each leveller roll 5, 6, 7, 8 according to the movement of the strip steel with operating the strip steels position by speed detecting signal. At the operation starting time of the tension leveller, the rolling reduction is applied by bringing into contact with the strip steel the rolls in order from the leveller roll 5 of the inlet side by setting to the passing through the prescribed position of the strip steel and at the completion time the rolls are released in order from the strip steel from the leveller roller of the inlet side by setting to the passing through the prescribed position of the strip steel. The camber and shape change at the starting and finishing times of tension levelling are thus prevented.
    • 2. 发明专利
    • Controlling method of tension leveler
    • 张力调节器的控制方法
    • JPS59185524A
    • 1984-10-22
    • JP6148383
    • 1983-04-07
    • Nippon Steel Corp
    • DOI MASAAKITAKEMOTO MASAKANEOOTA HITOSHI
    • B21D1/05
    • B21D1/05
    • PURPOSE:To control a tension leveler so as to maintain an L camber within a permissible range and to improve yield by adjusting automatically an intermesh, deflector roll gap and elongation percentage during passing of a strip. CONSTITUTION:The plate thickness signal 9 detecting 8 the plate thickness of a strip 8, the speed signal 10 detected with a speed detector 10 and the tension signal 18 detected with a tension detector 4 are inputted to an arithmetic device 11. The device 11 calculates the adequate values of the respective intermeshes A-A' of correcting rolls 3-3', the gap B of respective deflector rolls 19 facing the rolls 3-3' and further set elongation percentage C from the plate thickness, speed and tension in a leveler roll group 2 obtd. by tracking calculation from the signal 9 and the signal 10 so as to obtain an adequate L camber value and an adequate actual elongation percentage. An intermesh setter 15, a deflector roll gap setter 16, etc. are operated by the intermesh setting signal 12, deflector roll gap setting signal 13 and elongation percentage setting signal 14 corrected by the calculation, by which the intermesh, deflector roll gap and elongation percentage are corrected.
    • 目的:控制张力矫直机,以保持L倾角在允许的范围内,并通过在通过条带期间自动调整相互间的间隙,偏转辊间隙和伸长百分比来提高产量。 构成:板厚信号9检测条8的板厚度,用速度检测器10检测的速度信号10和用张力检测器4检测的张力信号18输入到运算装置11.装置11计算 校正辊3-3'的各个相互间的AA',各偏转辊19的面向辊3-3'的间隙B的适当值,并且从平板厚度进一步设定伸长率C,在矫直辊中的速度和张力 第2组 通过跟踪来自信号9和信号10的计算,以获得足够的L外倾角值和足够的实际伸长率。 通过间歇设定信号12,偏转辊间隙设定信号13和通过计算校正的伸长百分比设定信号14来操作相互啮合设定器15,偏转辊间隙设定器16等,通过该间隙设定信号12, 百分比已更正。
    • 4. 发明专利
    • METHOD AND APPARATUS FOR MEASURING ADHESION QUANTITY OF RUST PREVENTING OIL
    • JPS6361146A
    • 1988-03-17
    • JP20532386
    • 1986-09-01
    • NIPPON STEEL CORP
    • ONO MASAOYAMADA TAMEYOSHISATO YOSHIHIROOOTA HITOSHI
    • G01N21/64
    • PURPOSE:To instantaneously measure the adhesion quantity of rust preventing oil to a steel plate in-line, by measuring the quantity of fluorescence emitted from the rust preventing oil by exciting light allowed to irradiate the steel strip coated with the anticorrosion oil. CONSTITUTION:When the exciting light emitted from a light source device 4 is allowed to irradiate a steel strip 8 through a glass fiber 6 and the exciting light projector 2 of a measuring head 1, fluorescence is generated from the rust preventing oil adhered to the steel strip 8 corresponding to the adhesion quantity of the rust preventing oil. The intensity of the quantity of fluorescence is detected by a fluorescence quantity counter 5 through the fluorescence quantity receiver 3 of the measuring head 1 and the glass fiber 6 and a count number is digitally displayed. Further, by connecting the adhesion quantity operation apparatus 7 incorporated in a microcomputer to the fluorescene quantity counter 5, the adhesion quantity of the rust preventing oil is operated from the output value of the count number of the quantity of fluorescence on the basis of the characteristic data of a calibration curve by the adhesion quantity operation apparatus and digitally displayed, for example, is a gram number per square meter.
    • 6. 发明专利
    • Slip detecting method of bridle roll
    • 桥梁滑移检测方法
    • JPS5930425A
    • 1984-02-18
    • JP14122782
    • 1982-08-13
    • Nippon Steel Corp
    • DOI MASAAKIOOTA HITOSHI
    • B21D1/05
    • B21D1/05
    • PURPOSE:To detect slips on bridle rolls and to prevent a shape defect from occurring to a strip by detecting peripheral speeds of deflector rolls and bridle rolls of a tension leveler for the strip, and comparing and processing them. CONSTITUTION:The deflector rolls 8 and 2 and their speed detectors 11 and 5, speed detectors 12 and 6 for bridle rolls 10 and 4 in bridle roll groups 9 and 3, and speed comparison computing elements 13 and 7 are provided on the entrance and exit sides of the leveling roll group 1 for the strip 16. The bridle rolls 10 and 4 slip on the strip 16 owing to their wear and the peripheral speeds of the bridle rolls 10 and 4 become different from the speed of the strip 16. Those are detected by the detectors 11 and 12, and 5 and 6 and processed by the speed comparison computing elements 13 and 7, whose signals 14 are inputted to alarms 15 to generate alarms, preventing the strip 16 from having the shape defect due to slips of the bridle rolls.
    • 目的:通过检测带材的张力矫直机的偏转辊和卷绕辊的圆周速度,并对其进行比较和处理,来检测叉形辊上的滑移并防止形状缺陷发生在条带上。 构成:偏转辊8和2及其速度检测器11和5,用于绷带组9和3中的叉形辊10和4的速度检测器12和6以及速度比较计算元件13和7设置在入口和出口 平整辊组1的边缘用于带材16.由于它们的磨损,绷带辊10和4在条带16上滑动,并且绷带辊10和4的圆周速度变得与条带16的速度不同。 由检测器11和12和5和6检测并由速度比较运算元件13和7进行处理,速度比较运算元件13和7的信号14被输入到报警器15中以产生报警,防止条带16由于 le卷。
    • 7. 发明专利
    • FLASH WELDING DEVICE
    • JPS5645286A
    • 1981-04-24
    • JP12135979
    • 1979-09-20
    • NIPPON STEEL CORPMITSUBISHI ELECTRIC CORP
    • MORI KOUICHIOOTA HITOSHINAKAMURA MASAYUKI
    • B23K11/04
    • PURPOSE:To perform a flash welding without scattering the spatter outside, by giving the rotary drive to each sealing plate provided to the conductor or the member connected to the mobile and fixed upper and lower electrodes each in order to cover the welding part. CONSTITUTION:The cylinders 18 and 19 are actuated to rotate the sealing plates 1 and 3 which cover the upper parts of the upper electrode 8 of the mobile side and the upper electrode 8' of the fixed side respectively. And the plate 1 is set to ride on the insulated plate 5 on the plate 3 while performing the welding to prevent the outside scattering of the spatter at the upper part of the strip 25. On the other hand, the sealing plate 10 is rotated by the cylinder 20 to secure a contact to the insulated plate 12 of the lower electrode stand of the mobile side to prevent the outside scattering of the spatter at the lower part of the lower electrodes 9 and 9'. When no welding is given to the strip 25, the plates 1, 3 and 10 are set under the state as shown by the 1-dot chain lines. Thus the passing is made possible for the rotary shears which cuts the strip before welding or the trimmer which eliminates the fins.
    • 10. 发明专利
    • FLASH BUTT WELDER
    • JPS5650789A
    • 1981-05-08
    • JP12506179
    • 1979-09-28
    • NIPPON STEEL CORP
    • KAWANAMI TAKAOOOTA HITOSHI
    • B23K11/04
    • PURPOSE:To realize a flash butt welder that provides weldzone of superior quality by welding in an atmosphere of inert gas supplied into a chamber consisting of upper and lower shielding plates, traveling table and fixed table. CONSTITUTION::With gas tank 7 filled with inert gas, eletric opening-closing valve 8 is closed in a time other than a weld time and blower 9 is left off. For the start of welding, valve 8 is opened and blower 9 is actuated to supply inert gas from tank 7 into chamber 20, consisting of upper and lower shielding plates 2, 3, 4, and 5, traveling table 11, and fixed table 12, via duct 10. In chamber 20 supplied an atmosphere of inert gas, weldment to be welded, which is 1 clamped between upper electrodes 14 and 14' and lower electrodes 15 and 15', is welded. Further, exhaust duct 13 is linked to one side of said shielding plates, and to the rear terminal of duct 13, dumper 14 is fitted, so that a flow rate of inert gas can be controlled.