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1. 发明专利

JPS5381464A STEEL SHEET PILE AND SIMILAR STEEL SHAPE TERMINAL FORM PREPARATING AT ROLLING LINE 失效
公开(公告)号：JPS5381464A
公开(公告)日：1978-07-18
申请号：JP15747176
申请日：1976-12-28
申请人： NIPPON STEEL CORP
发明人： OGAWA YOSHIHIRO , NOGUCHI YOSHIYA , MINATO SUSUMU , HAMANAKA MITSUO
IPC分类号： B21B1/08 , B21B1/082 , B21B45/02 , C21D9/00

2. 发明专利

JPS5270971A COLDDCORRECTING METHOD FOR END OF STEEL SHEET PILE AND APPARATUS FOR EXECUTING SAME 失效
公开(公告)号：JPS5270971A
公开(公告)日：1977-06-13
申请号：JP14371275
申请日：1975-12-02
申请人： NIPPON STEEL CORP
发明人： NOGUCHI YOSHIYA , MINATO SUSUMU , SATOU RIYUUTA , HAMANAKA MITSUO , TANAKA KENICHI
IPC分类号： B21D3/00 , B21D3/05 , B21D7/16

3. 发明专利

JPS5581001A ROLLING METHOD OF STRAIGHT TYPE STEEL SHEET PILE 失效
公开(公告)号：JPS5581001A
公开(公告)日：1980-06-18
申请号：JP15401478
申请日：1978-12-13
申请人： NIPPON STEEL CORP
发明人： MIZUSAWA MUTSUO , NOGUCHI YOSHIYA , HAMANAKA MITSUO , ABE MAKOTO , NOGUCHI YUKIO
IPC分类号： B21B1/08 , B21B1/082
摘要： PURPOSE:To roll the captioned products of good quality efficiently from rectangular slabs by using the roll set which specifies the taper of the upper flange portion of the material to be rolled in an edge shear rolling mill and rolling the material within the specific difference range of the mean drafts of the flange and web in universal rolling. CONSTITUTION:The rough-shape slab obtained through rolling of a rectangular slab in a break-down rolling mill 1 is subjected to two-way rolling of plural passes in the (u) rolling mill set 2 consisting of a universal (U) rolling mill 3 and an edge shear rolling mill 4, whereby it is made to an intermediate product. In the rolling mills 3, 4, the hole die widths for molding and the angles that the taper of the inner side portion of the upper flange and the perpendicular upper line in the web perpendicular line assume are made respectively equal. The roll set having the upper roll shape wherein the perpendicular upward forming angle of the upper flange portion of the upper roll making contact with the upper flange of the material to be rolled is made 40 to 105 deg. and the angle that the taper on the upper flange inner side and the perpendicular line in the web perpendicular upper direction assume is made 15-35 deg. is used for the rolling mill 4. Further, in the rolling mill 3, the rolling is done in a 1-6% range of the mean drafts difference of the flange and web.

4. 发明专利

JPS52145889A METHOD AND APPARATUS FOR ADJUSTING AND CUTTING THE WIDTH AT END OF SHAPE STEEL 失效
公开(公告)号：JPS52145889A
公开(公告)日：1977-12-05
申请号：JP6223376
申请日：1976-05-31
申请人： NIPPON STEEL CORP
发明人： OGAWA YOSHIHIRO , NOGUCHI YOSHIYA , MINATO SUSUMU , SATOU RIYUUTA , KAWADA ISAMU
IPC分类号： B23D45/00 , B23D47/08
摘要： PURPOSE:To saw and cut the shape steel after having so controlled the temperature that the difference between the width at the end of the shape steel before the roller is corrected and the central width is within an adjustable ranged.

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