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1. 发明专利

JPH0211202A MANUFACTURE OF STEEL SHEET WHOSE THICKNESS HAVING SLOPE IN WIDTH DIRECTION 失效
公开(公告)号：JPH0211202A
公开(公告)日：1990-01-16
申请号：JP16073088
申请日：1988-06-30
申请人： NIPPON STEEL CORP
发明人： HORI YUJI , USUI YOSHIFUMI , SAITO HIROSHI , ONO HIROTO , FUJITA YOSHIAKI , KUTOGI YUKIHARU
IPC分类号： B21B1/38
摘要： PURPOSE:To improve the quality and accuracy of product steel sheets by measuring thicknesses of edges and the central parts of a rolled stock, calculating a wedge and a crown ratios, then performing plural passes rolling with their ratios kept constant, respectively. CONSTITUTION:A business computer 8, process computer 9, and plant controller 10 are installed for roll chocks 6, 7 at driving and operating sides and a thickness gage 12 is installed near to a rolling mill, a finish rolling stage is performed after diagonal hot rolling in the rolling direction by a reversible rolling mill. In that time, thicknesses in edges and the central parts of a rolled steel sheet 1 are measured by the gage 12, a wedge and a crown ratios are calculated by a prescribed equation, and a gap between rolls 2, 3 is adjusted to keep those ratio constant. Thus, the quality and the shape and dimensional accuracy of product steel sheets are improved because a draft setting accuracy per pass is improved.

2. 发明专利

JPH11344335A POSITION DETECTOR FOR MOVING BODY 失效
公开(公告)号：JPH11344335A
公开(公告)日：1999-12-14
申请号：JP15157998
申请日：1998-06-01
申请人： NIPPON STEEL CORP
发明人： NAKAO KENGO , SATO YUKIO , SUGANO MASATAKA , USUI YOSHIFUMI
IPC分类号： G01C15/00 , G01B11/00
摘要： PROBLEM TO BE SOLVED: To reduce the equipment and maintenance costs and to improve a detecting accuracy by reflecting a laser beam emitted from a laser oscillator toward a photoreceiver, and calculating a present position of a moving body based on a beam receiving position of the photoreceiver. SOLUTION: A laser beam 6 emitted from a laser oscillator 3 is reflected on a reflecting plate 7 and received by a laser photoreceiver 4. A distance between a crane body 1 and the plate 7 is obtained by an arithmetic unit 5 based on a beam receiving position of the photoreceiver 4, and a present position of the body 1 is detected. Here, as the photoreceiver 4, the oscillator 4 and the unit 5, those adopted in a conventional laser range finder are used. The plate 7 may be made of a material having a high reflectivity of the beam 6 and a surface roughness of small irregular reflection.

3. 发明专利

JPH0513721B2 失效
公开(公告)号：JPH0513721B2
公开(公告)日：1993-02-23
申请号：JP20386888
申请日：1988-08-18
申请人： NIPPON STEEL CORP
发明人： KUTOGI YUKIHARU , USUI YOSHIFUMI , KURASHIGE YUTAKA , KAKO TAKUZO , YAMADA MAMORU , TANAKA KAZUAKI
IPC分类号： B21B1/26 , B21B1/38 , B21B1/46 , B22D11/20

4. 发明专利

JPH0610299B2 失效
公开(公告)号：JPH0610299B2
公开(公告)日：1994-02-09
申请号：JP33616287
申请日：1987-12-29
申请人： NIPPON STEEL CORP
发明人： USUI YOSHIFUMI , KAWASAKI HIROSHI
IPC分类号： C21D1/00

5. 发明专利

JPH0469209B2 失效
公开(公告)号：JPH0469209B2
公开(公告)日：1992-11-05
申请号：JP18290086
申请日：1986-08-04
申请人： NIPPON STEEL CORP
发明人： SHIMOI TATSUICHIRO , UEDA TOYOHIKO , USUI YOSHIFUMI
IPC分类号： C21D9/00

6. 发明专利

JPH0516922B2 失效
公开(公告)号：JPH0516922B2
公开(公告)日：1993-03-05
申请号：JP16073088
申请日：1988-06-30
申请人： NIPPON STEEL CORP
发明人： HORI JUJI , USUI YOSHIFUMI , SAITO HIROSHI , ONO HIROTO , FUJITA YOSHIAKI , KUTOGI YUKIHARU
IPC分类号： B21B1/38

7. 发明专利

JPS6338522A METHOD FOR CONTROLLING CONVEYANCE AND COMBUSTION IN CONTINUOUS HEATING FURNACE 失效
公开(公告)号：JPS6338522A
公开(公告)日：1988-02-19
申请号：JP18388686
申请日：1986-08-05
申请人： NIPPON STEEL CORP
发明人： USUI YOSHIFUMI , SHIMOI TATSUICHIRO
IPC分类号： C21D9/00
摘要： PURPOSE:To heat steel product groups of different heating conditions at min. spacings and to heat up the steel products under the assigned heating conditions by conveying the steel products for which the heating conditions vary with the time required for changing the temp. of respective zones in a furnace and the conveying speeds of the steel products at the spacings provided therebetween and changing the furnace temp. of the zones during this time. CONSTITUTION:The time required for changing the set furnace temp. of the steel product group 24 to the set furnace temp. of the steel product group 25 in respective zones (a), (b)...(f) is calculated from the in-furnace set temp. calculated by a furnace temp. and conveying pattern predicting device 18 from the respective heating conditions of the front and rear steel product groups 24, 25 for which the heating conditions vary and the calculated combustion rate to maintain the set temp. of the steel product group 24. The spacings between the in- furnace steel products of the steel product groups 24, 25 necessary for changing the furnace temp. in the above-mentioned zones are calculated by the change time and the conveying speed of the steel product groups 24, 25 and the charging timings of the steel product group 25 is so determined by a charging timing and charging rate setter 17 as to attain the above- mentioned spacings. The combustion rate of said zones is changed and controlled during the time of the above-mentioned spacings on progression of the transfer of the steel product groups 24, 25 by which the furnace temp. of the respective zones (a), (b)...(f) is controlled and the steel products are continuously heated up.

8. 发明专利

JPS59156502A Method of broadside rolling in thick plate rolling 失效
标题翻译：厚板滚动中的广泛滚动方法
公开(公告)号：JPS59156502A
公开(公告)日：1984-09-05
申请号：JP3053983
申请日：1983-02-25
申请人： Nippon Steel Corp
发明人： IMAI HARUO , USUI YOSHIFUMI , MATSUSHIMA HARUHIKO , MORI MASAHIDE
IPC分类号： B21B1/38 , B21B37/22
CPC分类号： B21B1/38
摘要： PURPOSE:To improve the dimensional accuracy of a thick plate after broadside rolling by performing a final broadside rolling basing on the target thickness of a slab after broadside rollings, in broadside rolling a thick plate by changing its directoon by 90 deg.. CONSTITUTION:In manufacturing a thick plate, by broadside rolling a slab through plural passes by changing its direction by 90 deg. after performing plural times of adjusting rollings, and rolling the slab again after changing its direction by 90 deg., the dimensions of the slab 1 is measured by a width-length meter 2 to calculate the min. width, min. length, max. width, max. length, and their mean values, etc. by a deta processor 5, and the results are inputted to a process computer 6 to prepare a pass schedule of adjusting rolling and broadside rolling by volume calculation basing on the target width and length of the slab after the final broadside rolling, and the adjusting rolling and the broadside rolling are performed by a mill 8 in accordance with the pass schedule inputted to a rolling reduction controlling device 9 to improve the accuracy of the rolled plate.
摘要翻译：目的：通过在宽边轧制后，通过对板坯的目标厚度进行最终的宽边轧制，在宽轧后提高厚板的尺寸精度，通过将其直径改为90度来宽敞地轧制厚板。构成：在制造厚板，通过将其方向改变90度通过多个道次将一块板坯横向轧制。在进行多次调整滚动之后，在将方向改变90度之后再次滚动板坯，通过宽度计2来测量板坯1的尺寸，以计算最小值。宽度，最小长度，最大宽度，最大长度及其平均值等，并将结果输入到处理计算机6，以根据板坯的目标宽度和长度根据体积计算制备调整滚动和宽边滚动的通过时间表根据输入到轧制压下控制装置9的轧制程序，通过轧机8进行最终的侧轧，轧制和轧制，以提高轧制板的精度。

9. 发明专利

JPH0478691B2 失效
公开(公告)号：JPH0478691B2
公开(公告)日：1992-12-11
申请号：JP18388686
申请日：1986-08-05
申请人： NIPPON STEEL CORP
发明人： USUI YOSHIFUMI , SHIMOI TATSUICHIRO
IPC分类号： C21D9/00

10. 发明专利

JPH0255606A MANUFACTURE OF VERY THICK STEEL PLATE OF EXCELLENT INTERNAL QUALITY 失效
公开(公告)号：JPH0255606A
公开(公告)日：1990-02-26
申请号：JP20386888
申请日：1988-08-18
申请人： NIPPON STEEL CORP
发明人： KUTOGI KOUJI , USUI YOSHIFUMI , KURASHIGE YUTAKA , KAKO TAKUZO , YAMADA MAMORU , TANAKA KAZUAKI
IPC分类号： B21B1/26 , B21B1/38 , B21B1/46 , B22D11/20
摘要： PURPOSE:To obtain a very thick steel plate of excellent internal quality by drafting a part between a liquid phase line crater top and a solid phase line crater top of a billet by a drafting amount in a specific amount range in constant drawing stages and performing plural rolling passes at speeds in a specific rolling speed range in finish rolling stages. CONSTITUTION:A billet is subjected to width spread rolling in rough rolling stages and then is rolled to have a product thickness in finish rolling stages. In constant drawing stages, a part between a liquid phase line crater top and a solid phase line crater top is continuously rolled by a drafting amount in the range of 0.5-2.0mm/min. In finish rolling stages, plural rolling passes are performed at a speed in the range of 200-350mm/sec. Further, the stock is drafted by a rolling shape ratio of >=0.5 in the billet thickness direction. An equivalent diameter of a center porosity d0 and a billet thickness h0 before rolling are changed to a diameter dk and a billet thickness hk after K passes to show a pressure welding degree by plastic deformation of the stock. Hence, UST defects in the steel plate are effectively reduced and even a very thick steel plate is easily manufactured from a continuously cast billet.

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