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1. 发明专利

JPS5461057A BROADSIDE ROLLING METHOD IN HOT ROLLING 失效
公开(公告)号：JPS5461057A
公开(公告)日：1979-05-17
申请号：JP12673677
申请日：1977-10-24
申请人： NIPPON KOKAN KK
发明人： OKADO TSUYOSHI , NAKAUCHI ICHIROU , ARIIZUMI TAKASHI , NOMA YOSHINOSUKE
IPC分类号： B21B1/02 , B21B1/22 , B21B1/26 , B21B1/38 , B21B13/06 , B21B27/02
摘要： PURPOSE:To increase the spread, by giving overall reduction using the horizontal or vertical roll, before giving a partial reduction using the partially reducing type horizontal roll. CONSTITUTION:The partially reducing type horizontal roll has two ring type protuberances whose diameter is D, breadth is W, height from the drum surface is H, and interval between midst of both ring type protuberances is (l); this partially reducing type horizontal roll is used together with another horizontal roll with flat drum. For the purpose of comparison, the rolling is carried out by above partially reducing type horizontal roll independently, without using the horizontal roll of the same size installed nearby the upper stream of the partially reducing type horizontal roll. The result of this comparison is shown in the correlation graph for the rolling reduction and the spread in the partially reducing type horizontal roll. In the graph, the black round mark shows the case of independent partially reducing type horizontal roll, and the white round mark shows the case of the roll by this invention. The graph indicates that the spread of the slab obtained by the roll of this invention is extremely larger than that obtained by an independent partially reducing type horizontal roll.

2. 发明专利

JPS55106604A HOT ROLLING METHOD 失效
公开(公告)号：JPS55106604A
公开(公告)日：1980-08-15
申请号：JP289979
申请日：1979-01-17
申请人： NIPPON KOKAN KK
发明人： NOMA YOSHINOSUKE , OKADO TSUYOSHI , TOMITA SHIYOUGO , ARIIZUMI TAKASHI
IPC分类号： B21B1/26 , B21B13/02 , B21B13/14 , B21B27/02
摘要： PURPOSE:To plan to diminish the edge drop of the rolled material, by giving the rolling reduction to both breadthwise ends of the rolled material with a couple of work rolls in which the diameter of one drum end on mutually opposite side is respectively gradually lessened, at the specified position other than the final stand. CONSTITUTION:At a specified stand in front of the final stand of the finishing mill, the drums of work rolls 4, 5, are formed as follows; the diameter of one drum end of each roll on mutually opposite side is respectively gradually lessened. These small diameter portions of work rolls 4, 5, are placed on both breadthwise ends of the rolled material 6 which is then given the rolling reduction; hereby, the thick- headed part 6a, in which the thickness gradually grows larger toward both ends from other part, is formed on both breadthwise ends of the rolled material 6. As a result, at following finishing mills, the rolling work can be carried out under the condition generating diminished edge drop.

3. 发明专利

JPH0367762B2 失效
公开(公告)号：JPH0367762B2
公开(公告)日：1991-10-24
申请号：JP14344581
申请日：1981-09-11
申请人： NIPPON KOKAN KK
发明人： NOMA YOSHINOSUKE , YABUCHI TOSHIFUMI , SAITO MORIO , TANIMOTO SUNAO , IWAMASA NOBUO , SHIMONO MITSUHIRO
IPC分类号： B21B37/50 , B21B37/00 , B21B37/48

4. 发明专利

JPS603881B2 失效
公开(公告)号：JPS603881B2
公开(公告)日：1985-01-31
申请号：JP289979
申请日：1979-01-17
申请人： NIPPON KOKAN KK
发明人： NOMA YOSHINOSUKE , OKADO KATSU , TOMITA SHOGO , ARIIZUMI TAKASHI
IPC分类号： B21B1/26 , B21B13/02 , B21B13/14 , B21B27/02

5. 发明专利

JPS5741802A Hot rolling method 失效
标题翻译：热轧方法
公开(公告)号：JPS5741802A
公开(公告)日：1982-03-09
申请号：JP11773180
申请日：1980-08-28
申请人： Nippon Kokan Kk
发明人： NOMA YOSHINOSUKE , KUSAKA TAKEO , FUKUDA MAKOTO , SHIMONO MITSUHIRO
IPC分类号： B21B1/02 , B21B1/26 , B21B37/00 , B21B37/46
摘要： PURPOSE: To forcibly feed the tip of a material into an edging roll, to prevent generation of an edge drop, and to improve the yield of the edging pass, by slowing down the circumferential speed of the edging roll on the run-out side of a horizontal mill when the material is bitten by the edging roll, and by making the circumferential speed of the edging roll after biting the material synchronize with the speed of the material.
CONSTITUTION: The circumferential speed VE of an edging roll 1 is set by equation I. In which, VH is the circumferential speed of a horizontal mill roll 2, (f) is the forward slip of the horizontal mill roll 2, and α is a control factor. The smaller the value of α is, the smaller the value of VE is; and this makes the edge drop effect large, and worsens the threadability of the material. At a stage of biting a material by the edging roll 1, α=0.5 is set; according to the detected variation of the electric current caused by feeding the material into the edging roll 1, the value of α is increased to a final value α=1.0 by which the circumferential speed VE of the edging roll 1 synchronizes with the material speed (1+f)VH on the run-out side of the horizontal mill roll 2; then, only the tip of the material is forcibly fed to the edging roll 1 by the horizontal roll, so that the edge drop in the tip of the material is prevented.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了将材料的尖端强制送入边缘辊中，以防止边缘掉落的产生，并且通过将边缘辊的圆周速度通过减慢磨边的圆周速度减慢，水平磨机，当材料被边缘辊咬住时，并且通过使咬合材料之后的边缘辊的圆周速度与材料的速度同步。构成：边缘辊1的圆周速度VE由等式I设定。其中VH是水平轧辊2的圆周速度，（f）是水平轧辊2的向前滑移，α是控制因素。 α的值越小，VE的值越小; 这使得边缘下落效应变大，并且使得材料的线性变差。在边缘辊1咬住材料的阶段，设定α= 0.5; 根据检测到的通过将材料进给到边缘辊1中导致的电流的变化，α的值增加到最终值α= 1.0，边缘辊1的圆周速度VE与材料速度同步（ 1 + f）VH在水平轧辊2的漏气侧; 那么仅通过水平辊将材料的尖端强制地供给到边缘辊1中，从而防止材料尖端的边缘下降。

6. 发明专利

JPS54134057A YARD FOR STEEL MATERIALS 失效
公开(公告)号：JPS54134057A
公开(公告)日：1979-10-18
申请号：JP4172978
申请日：1978-04-11
申请人： NIPPON KOKAN KK
发明人： NOMA YOSHINOSUKE , TSUKUI TAKASHI
IPC分类号： B21B1/00 , B21B39/00 , B21C49/00 , B65G1/00 , B65G1/04
摘要： PURPOSE:To permit the unmanned operation of ceiling crane for the carrying-in and-out operation of steel materials by providing one carry-in and out truck movable across each yard ridge and one crane movable toward the direction of ridge for yard ridges for steel materials, arranged in parallel by putting the direction of ridges into order. CONSTITUTION:One crane 3 is movably provided for each of the yard ridges 1 for steel materials in the direction of the ridge. The carry-in truck 4 is provided at the one end of each of the yard ridges 1 in such a way that it can run across linearly at right angle to the direction of ridge, and the carry-out truck 5 is also provided at the opposite position of the carry-in truck 4. When making the unmanned operation of carrying-in and out for steel materials, where subject slab is transferred to the yard ridge by trucks, information from the slab arranging CPU is detected by the slab yard CPU to determine the yard ridge for keeping. When the slab is transferred until the entrance of yard ridge, it is stopped and then an indication for receiving slab is given to the crane. Thus, the slab is transferred to predetermined position by the crane and stored.

7. 发明专利

JPS5468709A COOLING METHOD FOR HOTTROLLED COIL 失效
公开(公告)号：JPS5468709A
公开(公告)日：1979-06-02
申请号：JP13566077
申请日：1977-11-14
申请人： NIPPON KOKAN KK
发明人： NOMA YOSHINOSUKE , OKAMOTO YASUO , SUGIYAMA SHIYUNICHI , KUSAKA TAKEO
IPC分类号： C21D9/52 , C21D1/00
摘要： PURPOSE:To cool efficiently the wound hot-rolled coil without causing the occurrence of rust and the hardening of steel strip, by placing the above coil in a state of down end and cooling this coil under a specified condition for cooling with water. CONSTITUTION:The hot-rolled coil 1 which has been wound at 500-700 deg.C, is placed in a state of down end (horizontal hole) and both of the ends 11 and 11 in the width direction are cooled with water. At this case, the amount of water to be used for cooling is made 5-200l/min. m per each end and the cooling is continued at least until the temperature of the coil becomes nearly 100 deg.C. With this process, the cooling time can be shortened remarkably and, further, the area of cooling yard can be reduced.

8. 发明专利

JPS5432156A ROLL HANDLING APPARATUS 失效
公开(公告)号：JPS5432156A
公开(公告)日：1979-03-09
申请号：JP9782677
申请日：1977-08-17
申请人： NIPPON KOKAN KK
发明人： SHIMIZU RIYOUJI , NOMA YOSHINOSUKE
IPC分类号： B21B28/02 , B21B28/00 , B24B5/04 , B24B5/37
摘要： PURPOSE:The roll handling apparatus, for use of repolishing of the rolls, which can easily handle the roll, by handing the roll carrying truck, being carried from the rolling mill side into the polishing side, using two cranes, so as to carry out cooling and repolishing of these rolls.

9. 发明专利

JPS5844907A CONTROLLING METHOD FOR TENSION OF FINISHING MILL IN HOT STRIP MILL 失效
公开(公告)号：JPS5844907A
公开(公告)日：1983-03-16
申请号：JP14344581
申请日：1981-09-11
申请人： NIPPON KOKAN KK
发明人： NOMA YOSHINOSUKE , YABUUCHI TOSHIFUMI , SAITOU MORIO , TANIMOTO SUNAO , IWAMASA NOBUO , SHIMONO MITSUHIRO
IPC分类号： B21B37/50 , B21B37/00 , B21B37/48
摘要： PURPOSE:To perform a highly accurate tension-controlling, by controlling a tension produced between stands by means of rolling torque and rolling load when the cross-sectional area of a material is larger than the prescribed cross-sectional area, and controlling the tension by a looper device when said area is smaller than the prescribed one. CONSTITUTION:In rolling a material having the cross-sectional area larger than the prescribed one, rolling load of each stand 1, 2,- (i),-(n) is measured by providing a load meter 5 each, and rolling torque is measured by a torque-meter or a main motor 6. The speed of each main motor 6 located at the opposite side of a pivot is operated so as to make each tension produced between the stands coincide with the desired tension by estimating a tension between the stands from said measured value. When the cross-sectional area of the material is small, a small inertial looper-device 4 is provided to perform a PID control against looper angle theta so as to obtain the desired tension without being affected by the inertial force by considering the looper angle theta, thereby operating the speed of the motor 6 located at the opposite side of the pivot.

10. 发明专利

JPS57187101A ROLLING METHOD FOR REDUCING EDGE DROP IN HOT ROLLING 失效
公开(公告)号：JPS57187101A
公开(公告)日：1982-11-17
申请号：JP7064381
申请日：1981-05-13
申请人： NIPPON KOKAN KK
发明人： OKADO TSUYOSHI , TOMITA SHIYOUGO , YABUUCHI TOSHIFUMI , SHIBAYAMA YUTAKA , NOMA YOSHINOSUKE
IPC分类号： B21B1/26 , B21B1/22
摘要： PURPOSE:To reduce edge drops and center crowns by increasing the plate thicknesses in both broadside end parts of a material to be rolled in accordance with specific conditions on the upper stream than the final stand of hot finishing stages then screwing down both end parts gradually. CONSTITUTION:Plate thickness increasing parts are so formed as to increase the thicknesses in the broadside thickness parts of a material to be rolled in the plate end parts on the upper stream than the final stand of hot finishing stages, and this material is flat rolled in the subsequent passes. Here, the thickness increasing in the plate end parts is so limited as to satisfy the equationI(H: the thickness in the central part of the material to be rolled, B: the width of the material to be rolled, the difference between the thickness in the end parts and the thickness in the central parts, that is, the height of the thickness increased part alpha, W: the width of the thickness increased part alpha, S: WXh, that is, the sectional area of the thickness increased part alpha). According to this method, not only edge drops are reduced effectively, but also center crowns are reduced.

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