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1. 发明专利

JPH04285113A HEARTH ROLL FOR THICK STEEL PLATE HEAT TREATMENT FURNACE 失效
公开(公告)号：JPH04285113A
公开(公告)日：1992-10-09
申请号：JP4641591
申请日：1991-03-12
申请人： NIPPON STEEL CORP
发明人： ONO KEIICHIRO , MURAI YOSHIO
IPC分类号： C21D1/00 , C22C1/05 , F27B9/24
摘要： PURPOSE:To prevent the occurrence of pickup in a hearth roll for thick steel plate heat treatment furnace. CONSTITUTION:A sprayed deposit which is composed of cermet containing alumina and chromina and in which surface Shore hardness Hs at ordinary temp. is regulated to a value between 45 and 70 and not lower than 70-(5/2)XRa(surface roughness) and also Ra is regulated to >=4 microns is formed on the surface of a hearth roll.

2. 发明专利

JPH0326376A PAINTING METHOD FOR STEEL SHEET PAINTED WITH ULTRA-THICK FILM 失效
公开(公告)号：JPH0326376A
公开(公告)日：1991-02-04
申请号：JP16166189
申请日：1989-06-23
申请人： NIPPON STEEL CORP
发明人： MURAI YOSHIO , KUTOGI KOUJI , OOTSUBO TOSHINORI
IPC分类号： B05D7/14 , B05D1/02 , B05D1/40
摘要： PURPOSE:To uniformly obtain coated films of a relatively large number of coating by arraying plural pieces of painting means at a prescribed pitch in a direction (y) and supplying paints by the relations expressed by specific equation in the painting method for scanning and driving the painting means back and forth in the direction (x) orthogonal with the direction (y) while transferring the painting means relatively in the direction (y). CONSTITUTION:Plural pieces of the painting means for executing the painting at a prescribed width d respectively in the direction (y) are arrayed at a prescribed pitch pin a direction (y) in the painting method for scanning and driving back and forth the painting means for executing the painting at the prescribed width d in the direction (y) on the surface of a material to be painted, in the direction (x) orthogonal therewith while transferring the painting means relatively in the direction (y). The painting is executed by supplying the paints to N-pieces of the painting means in the relations Vs=N.d.Vn/(M.L) and N.d a.P, wherein Vs is the transfer speed in the direction (y): N is the number of the painting means to actually execute the painting; Vn is the scanning speed in the direction (x); M is an even number; L is the painting width in the direction (x); a is integer (1, 2, 3...)).

3. 发明专利

JPS6249122B2 失效
公开(公告)号：JPS6249122B2
公开(公告)日：1987-10-17
申请号：JP22112482
申请日：1982-12-18
申请人： NIPPON STEEL CORP
发明人： YOSHIMOTO YUKIO , TSURU SHIGENORI , MURAI YOSHIO , USUI YOSHIFUMI
IPC分类号： B21B1/38

4. 发明专利

JPS59113905A Production of steel plate of different thicknesses having one flat surface 失效
标题翻译：生产具有一个平面表面的不同厚度的钢板
公开(公告)号：JPS59113905A
公开(公告)日：1984-06-30
申请号：JP22112482
申请日：1982-12-18
申请人： Nippon Steel Corp
发明人： YOSHIMOTO YUKIO , TSURU SHIGENORI , MURAI YOSHIO , USUI YOSHIFUMI
IPC分类号： B21B1/38
CPC分类号： B21B1/38
摘要： PURPOSE:To improve the strength in a tapered part and the strain in the stage of welding by forming a steel plate of different thicknesses having steps on both sides by a rolling mill and pressing the stepped part of the steel plate by a press straightener so that the one side in the stepped part is formed flat. CONSTITUTION:A steel plate of different thicknesses consisting of a thick part 2 and a thin part 3 and having stepped parts 4 on both surfaces is produced by, for example, a quadruple reversible rolling mill. Such plate 1 is placed on the bedding 6 on a table 7 of a press straightener. A die 5 is placed on the top side of the part 4 and said part is pressed and compressed by a press cylinder 8 of the press straightener from above. The one side of the part 4 is thus formed flat and the steel plate of different thicknesses having one flat surface is produced.
摘要翻译：目的：为了提高锥形部分的强度和焊接阶段的应变，通过轧制机形成具有两面台阶的不同厚度的钢板，并通过压力矫直机对钢板的阶梯部分进行压制，使得台阶部分的一侧平整。构成：通过例如四重可逆式轧机制造由厚的部分2和薄的部分3组成并且在两个表面上具有阶梯部分4的不同厚度的钢板。这样的板1被放置在压床矫直机的工作台7上的床垫6上。模具5被放置在部件4的顶侧上，并且所述部件由压机矫直机的压缸8从上方被压制和压缩。因此，部分4的一侧形成为平坦的，并且制造具有一个平坦表面的不同厚度的钢板。

5. 发明专利

JPH03291105A ON-LINE SAMPLING METHOD IN HOT ROLLING 失效
公开(公告)号：JPH03291105A
公开(公告)日：1991-12-20
申请号：JP8960190
申请日：1990-04-04
申请人： NIPPON STEEL CORP
发明人： WATABE YOSHIYUKI , NISHIOKA KIYOSHI , TAMEHIRO HIROSHI , MURAI YOSHIO , SHIMOMURA SHINICHI , SUZUKI SANAE
IPC分类号： B23K10/00 , B21B15/00
摘要： PURPOSE:To easily make possible the structure freeze over the whole of thickness and structure observation by rolling by cutting out a part of steel sheet at high speed on an actual line in the process of rolling or just after rolling. CONSTITUTION:It is necessary to rapidly cool the steel sheet immediately after rolling for structure freeze and a part of steel sheet is subjected so as to be cut out from the viewpoint of the securance of cooling speed and yield. The structure just after rolling is changed by recovery, recrystallization and transformation with the lapse of time and it is necessary to cut and cool the steel sheet as rapidly as possible after rolling to find structure variation by rolling. For the purpose, the cut part of the steel sheet is cooled also from the cut face as well as the surface and rear at the time of rapid cooling and the structure freeze is made easy in principle over the whole of sheet as well as in the vicinity of the surface and rear. Therefore, the structure freeze is easily performed by rapid cooling after cutting and the structure observation just after rolling can be easily done.

6. 发明专利

JPS6125428B2 JPS6125428B2 - 失效
公开(公告)号：JPS6125428B2
公开(公告)日：1986-06-16
申请号：JP20089981
申请日：1981-12-15
申请人： Nippon Steel Corp
发明人： KAWANO TAKATOSHI , MURAI YOSHIO
IPC分类号： B05D7/14 , B05D1/02

7. 发明专利

JPH0326380A PRODUCTION OF COATED STEEL WITH ULTRA-THICK FILM 失效
公开(公告)号：JPH0326380A
公开(公告)日：1991-02-04
申请号：JP16166089
申请日：1989-06-23
申请人： NIPPON STEEL CORP
发明人： MURAI YOSHIO , KUTOGI KOUJI , OOTSUBO TOSHINORI
IPC分类号： B05D7/14 , B05D1/02 , B05D1/40 , B05D3/02
摘要： PURPOSE:To improve the peeling resistance and the strength of the coating film and to execute a relatively thick coating at a high speed by roughening a preheated material to be coated by shot blasting and scanning plural pieces of coating means along a direction (y) back and forth >=4 times while transferring the material in the direction (y) to coat the 1st surface and then executing the coating of the 2nd surface in the same manner after drying. CONSTITUTION:After the front and rear surfaces of the material which is to be coated and is preheated in a 1st preheating furnace 50 are roughened by the shot blasting 60, the 1st surface is coated by a 1st coater 70 and is sent to a 1st drying furnace 80. The material to be coated is turned over by a front and rear turning over machine 90 upon drying of the coating film and the 2nd surface is coated by a 2nd coater 100. While the material to be coated is transferred in the direction (y) in the 1st coater 70 and the 2nd coater 100, plural pieces of the coating means disposed at prescribed intervals along the direction (y) are scanned back and forth >=4 times in the direction (x) orthogonal with the direction (y) and the coating surfaces thereof are subjected to a spray coating.

8. 发明专利

JPS58101760A SPRAY PAINTING METHOD OF THICK AND MIDDLE THICKNESS STEEL PLATE 失效
公开(公告)号：JPS58101760A
公开(公告)日：1983-06-17
申请号：JP20089981
申请日：1981-12-15
申请人： NIPPON STEEL CORP
发明人： KAWANO TAKATOSHI , MURAI YOSHIO
IPC分类号： B05D7/14 , B05D1/02
摘要： PURPOSE:To make the entire painted surface uniform in film thickness by painting both end parts of a traveling thick or middle thickness steel plate to be painted with a pair of spray guns for edge painting and painting the central part with traversing spray guns. CONSTITUTION:In the stage of subjecting a hot rolled middle thickness steel plate 1 traveling on roll tables 4 to spray painting except its unpainting parts 2, both right and left end parts A, B of the plate 1 are painted with spray guns 6, 6 for edge painting and the central part C is painted with traversing spray guns 8, 8a, 9, 9a, 10. The guns 5, 6 are properly positioned on guiding rails 5, and the angles of inclination of the nozzles are set at about 10-30 deg. toward the central part of the plate 1. The guns 8, 8a, 9, 9a, 10 are moved at proper speeds on guiding rails 11, 12, 13, and are employed successively increasing speed in order of 10, 9a, 9, 8a, 8 from the front stage according to the progression of the plate 1. Thus, the film thickness is finished roughly uniformly without decreasing the passing through speed of the plate 1.

9. 发明专利

JPH0611430B2 失效
公开(公告)号：JPH0611430B2
公开(公告)日：1994-02-16
申请号：JP16166189
申请日：1989-06-23
申请人： NIPPON STEEL CORP
发明人： MURAI YOSHIO , KUTOGI YUKIHARU , OOTSUBO TOSHINORI
IPC分类号： B05D7/14 , B05D1/02 , B05D1/40

10. 发明专利

JPH0611429B2 失效
公开(公告)号：JPH0611429B2
公开(公告)日：1994-02-16
申请号：JP16166089
申请日：1989-06-23
申请人： NIPPON STEEL CORP
发明人： MURAI YOSHIO , KUTOGI YUKIHARU , OOTSUBO TOSHINORI
IPC分类号： B05D7/14 , B05D1/02 , B05D1/40 , B05D3/02

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