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1. 发明授权

EP2977124B1 MATERIAL FOR RING ROLLING 有权转让
公开(公告)号：EP2977124B1
公开(公告)日：2019-05-08
申请号：EP14770320.1
申请日：2014-03-18
申请人： Hitachi Metals, Ltd.
发明人： YAGAMI, Tetsuya , TERAMAE, Toshiya , FUJITA, Etsuo , NAGAO, Shinya , MUKOUSE, Remi , IWASA, Naoyuki , FUKUI, Tsuyoshi , AOKI, Chuya
IPC分类号： B21H1/06 , C22C19/05

2. 发明授权

EP2977123B8 MANUFACTURING METHOD FOR MATERIAL FOR RING ROLLING 有权转让
公开(公告)号：EP2977123B8
公开(公告)日：2019-07-17
申请号：EP14769789.0
申请日：2014-03-18
申请人： Hitachi Metals, Ltd.
发明人： YAGAMI, Tetsuya , TERAMAE, Toshiya , FUJITA, Etsuo , NAGAO, Shinya , MUKOUSE, Remi , IWASA, Naoyuki , FUKUI, Tsuyoshi , AOKI, Chuya
IPC分类号： B21H1/06 , C22C19/05

3. 发明授权

EP2977123B1 MANUFACTURING METHOD FOR MATERIAL FOR RING ROLLING 有权转让
公开(公告)号：EP2977123B1
公开(公告)日：2019-05-22
申请号：EP14769789.0
申请日：2014-03-18
申请人： Hitachi Metals, Ltd.
发明人： YAGAMI, Tetsuya , TERAMAE, Toshiya , FUJITA, Etsuo , NAGAO, Shinya , MUKOUSE, Remi , IWASA, Naoyuki , FUKUI, Tsuyoshi , AOKI, Chuya
IPC分类号： B21H1/06 , C22C19/05
CPC分类号： F01D25/005 , B21B45/004 , B21D19/04 , B21H1/06 , B21J1/02 , B21J1/025 , B21J5/02 , B21J5/022 , B21K1/761 , C22C19/05 , C22C19/055 , C22C19/056 , C22F1/10 , F01D5/02 , F01D5/06 , F05D2220/32
摘要： The present invention provides a high quality material for ring rolling. The material includes radially outer and inner peripheral surfaces. In the material, a center of gravity on a half section is located so as to be closer to the outer peripheral surface in contact with a main roll than a center of the half section in a thickness direction, a shape of the half section includes a height reducing portion having a height from a center line dividing the half section into halves in a height direction, this height is gradually reduced toward the inner peripheral surface in contact with a mandrel roll, and the shape is formed in a substantially linear symmetry such that the center line is a symmetric axis. A height of the inner peripheral surface is from 20 % to 50 % of a maximum height of the material.

4. 发明公开

EP2977124A1 RING-ROLLING BLANK 有权转让
标题翻译： RINGING滚动空白
公开(公告)号：EP2977124A1
公开(公告)日：2016-01-27
申请号：EP14770320.1
申请日：2014-03-18
申请人： Hitachi Metals, Ltd.
发明人： YAGAMI, Tetsuya , TERAMAE, Toshiya , FUJITA, Etsuo , NAGAO, Shinya , MUKOUSE, Remi , IWASA, Naoyuki , FUKUI, Tsuyoshi , AOKI, Chuya
IPC分类号： B21H1/06 , C22C19/05
CPC分类号： F01D25/005 , B21B45/004 , B21D19/04 , B21H1/06 , B21J1/02 , B21J1/025 , B21J5/02 , B21J5/022 , B21K1/761 , C22C19/05 , C22C19/055 , C22C19/056 , C22F1/10 , F01D5/02 , F01D5/06 , F05D2220/32
摘要： The present invention provides a high quality material for ring rolling. The material includes radially outer and inner peripheral surfaces. In the material, a center of gravity on a half section is located so as to be closer to the outer peripheral surface in contact with a main roll than a center of the half section in a thickness direction, a shape of the half section includes a height reducing portion having a height from a center line dividing the half section into halves in a height direction, this height is gradually reduced toward the inner peripheral surface in contact with a mandrel roll, and the shape is formed in a substantially linear symmetry such that the center line is a symmetric axis. A height of the inner peripheral surface is from 20 % to 50 % of a maximum height of the material.
摘要翻译：本发明提供了用于环轧的高质量材料。该材料包括径向外部和内部周边表面。在该材料中，半部的重心位于比厚度方向的半部的中心靠近与主辊接触的外周面的位置，半部的形状包括所述高度减小部分具有从沿着高度方向将所述半部分分成半部分的中心线的高度，该高度朝向与心轴辊接触的内周表面逐渐减小，并且所述形状基本上线性对称地形成，使得中心线是一个对称轴。内周表面的高度是材料最大高度的20％至50％。

5. 发明公开

EP2977123A1 METHOD OF PRODUCING RING-ROLLING BLANK 有权转让
标题翻译：生产环形滚筒坯的方法
公开(公告)号：EP2977123A1
公开(公告)日：2016-01-27
申请号：EP14769789.0
申请日：2014-03-18
申请人： Hitachi Metals, Ltd.
发明人： YAGAMI, Tetsuya , TERAMAE, Toshiya , FUJITA, Etsuo , NAGAO, Shinya , MUKOUSE, Remi , IWASA, Naoyuki , FUKUI, Tsuyoshi , AOKI, Chuya
IPC分类号： B21H1/06 , C22C19/05
CPC分类号： F01D25/005 , B21B45/004 , B21D19/04 , B21H1/06 , B21J1/02 , B21J1/025 , B21J5/02 , B21J5/022 , B21K1/761 , C22C19/05 , C22C19/055 , C22C19/056 , C22F1/10 , F01D5/02 , F01D5/06 , F05D2220/32
摘要： A manufacturing method provides a high-quality material for ring rolling. The manufacturing method of the material for ring rolling includes a step of heating a disk-shaped material for hot forging to a hot working temperature, a step of arranging the material for hot forging onto a lower die having a convex portion with a truncated conical shape, a step of forming a thin portion by pressing a center portion of the material for hot forging by using an upper die having a convex portion with a truncated conical shape, and a step of manufacturing a material for ring rolling by removing the thin portion, and in this method, a center of gravity on a half section of the material for ring rolling is located so as to be closer to an outer peripheral surface of the half section than a center of the half section in a thickness direction of the half section, a shape of the half section includes a height reduction portion having a height from a center line which divides the half section into halves in a height direction of the half section is gradually reduced toward the inner peripheral surface, and the shape thereof is formed in a substantially linearly symmetry so as to define the center line as a symmetrical axis of the half section, and the height of the inner peripheral surface is from 20% to 50% of a maximum height of the material for ring rolling.
摘要翻译：一种制造方法提供了用于环轧的高质量材料。环轧用材料的制造方法包括：将热锻用圆板状材料加热至热加工温度的工序;将热锻用材料配置于具有截头圆锥形状的凸部的下模具上的工序通过使用具有圆锥台形状的凸部的上模来挤压热锻用坯材的中央部来形成薄壁部的工序和通过去除该薄壁部来制造环轧用材料的工序，并且在该方法中，用于环轧的材料的一半部分的重心位于比半部分的厚度方向上的半部分的中心更靠近半部分的外周表面的位置所述半部的形状包括高度减小部分，所述高度减小部分具有距所述半部沿着所述半部的高度方向分成半部分的中心线的高度朝向所述半部所述内周面的形状形成为大致线对称以将所述中心线限定为所述半部的对称轴，并且所述内周面的高度为最大值的20％至50％环轧材料的高度。

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