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1. 发明专利

JPH06246329A INCLINED ROLLING MILL 失效
公开(公告)号：JPH06246329A
公开(公告)日：1994-09-06
申请号：JP3772193
申请日：1993-02-26
申请人： NIPPON STEEL CORP
发明人： TENTOU KIYOUTAROU , SATANO YUTAKA , SHIYOUMOTO IKUO , ITO KENICHI , TERAMAE AKIRA
IPC分类号： B21B19/02 , B21B39/14 , B21B45/00
摘要： PURPOSE:To decrease temp. difference between the surface and the center of a rolled stock by making at least the inner peripheral surface of a cylindrical guide with which the rolled stock is guided of a thermal insulating material. CONSTITUTION:The bar-like or cylindrical rolled stock 1 which is heated to a desired temp. in a heating furnace is passed through the center of the cylindrical guide 2 (2a+2b+2c) and rolled with inclined rolls 3. The cylindrical guide 2 is made by fixing an introducing guide 2b on a cylinder 2a lined with ceramic fiber wool 2c. The cylinder 2a may be coated with the thermal insulating material, or the cylinder itself may be formed from the thermal insulating material of a ceramic or the like. At least the inner peripheral surface of the cylindrical guide 2 is the thermal insulating material 2c, so radiation of heat from the surface of the rolled stock 1 to the inclined rolling mill is suppressed with the thermal insulating material 2c and the amount of radiation of heat of the rolled stock 1 is decreased. The rolling defect of the rolled stock 1 is reduced.

2. 发明专利

JPH04157011A GUIDING DEVICE FOR ROLLING SHAPES 失效
公开(公告)号：JPH04157011A
公开(公告)日：1992-05-29
申请号：JP27339190
申请日：1990-10-15
申请人： NIPPON STEEL CORP
发明人： MIURA YOSUKE , TERAMAE AKIRA , MIZUTANI HIDEO , NISHINO TANEHARU
IPC分类号： B21B39/14 , B21B1/08 , B21B39/16
摘要： PURPOSE:To enable guiding shapes tightly by providing two or more lower guide rollers and one or plural upper guide rollers which are respectively arranged one by one between these lower guide rollers in a guiding device which a rolled stock is guided with the upper and lower guide rollers. CONSTITUTION:The upper guide roller 16 and lower guide rollers 17 (17-1, 17-2) with which the web 13 of the rolled stock 1-1 is guided into the roll gap between horizontal rolls 3, 3' are provided and the rolled stock 1-1 is guided with the upper and lower guide rollers. The lower guide rollers 17 consist of plural lower guide rollers 17-1, 17-2 and the upper guide roller 16 is arranged between the lower guide rollers 17-1, 17-2. The upper and lower guide rollers are alternately arranged and not arranged vertically symmetrically. It may be decided in accordance with the bend tendency of material to be rolled in the vertical direction in that rolling process to relatively increase the number of roller on which upper or lower side. In this way, the shapes can be tightly guided without possibility of erroneous rolling, damage of the guiding device or the like.

3. 发明专利

JPS63260602A METHOD FOR ROLLING SHAPE STEEL 失效
公开(公告)号：JPS63260602A
公开(公告)日：1988-10-27
申请号：JP9506287
申请日：1987-04-20
申请人： NIPPON STEEL CORP
发明人： INAGAKI AKIRA , TERAMAE AKIRA
IPC分类号： B21B1/088 , B21B1/08 , B21B1/095
摘要： PURPOSE:To increase the web inside dimension of shape steels such as H-shape steels having a web and flanges by on-line working by constructing horizontal rolls of a universal mill so that a roll body width is freely changeable in the axial direction and rolling a rolled stock with a width of the body sequentially expanded during reverse rolling. CONSTITUTION:An upper horizontal roll 41a and a lower horizontal roll 41b are freely movable in the axial direction; a stock 5 to be rolled having a web inside dimension WF shows a section of an intermediate rolled stock; the thickness of a web and flanges of the stock 5 is made to be nearly equal to that of a prescribed product and the web is formed a little thicker web in accordance with a web width expansion amount. In a 1st pass in finish rolling, the stock 5 is spread rolled with a body width WF1 of the upper and lower horizontal rolls 41a, 41b expanded a little larger than the web inside dimension WF. Right and left vertical rolls 6a, 6b retract by an optional distance (t) not to draft a flange faces 5a. In a 2nd pass, the stock 5 is rolled with the body width of the rolls 41a, 41b expanded to the position of imaginary lines WF2. In a 3rd pass, the vertical rolls 6a, 6b are pressed onto the flange faces 5a to eliminate a flange taper theta, to make the angle between the web and flanges rectangular, to correct the shape of the stock 5, and to roll the flanges.

4. 发明专利

JP2002371394A Method for pickling stainless steel 审中-公开
标题翻译：不锈钢取材方法
公开(公告)号：JP2002371394A
公开(公告)日：2002-12-26
申请号：JP2001181068
申请日：2001-06-15
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MUTO IZUMI , MIZUTA YOSHIO , TERAMAE AKIRA
IPC分类号： C23G1/08
摘要： PROBLEM TO BE SOLVED: To provide a method for effectively removing a scale, without conducting mechanical preliminary descaling such as shot blasting or brush grinding before pickling, when removing an oxidized scale generating in a hot rolling or heat treating process of a stainless steel.
SOLUTION: The pickling method for removing the oxidized scale generating on the surface of the stainless steel, comprises sequentially dipping the stainless steel into a hydrochloric acid solution of 100 g/L or higher in the first pickling tank, an acid solution including fluoric acid of 10 g/L or higher in the second pickling tank, a hydrochloric acid solution of 100 g/L or higher in the third pickling tank, and an acid solution including fluoric acid of 10 g/L or higher in the fourth pickling tank. As required, a compound containing a sulfhydryl group of 0.001 mol/L or more, or amine of 0.001 mol/L or more, can be added into the hydrochloric acid bath; concentration of the fluoric acid bath can be 15-100 g /L for fluoric acid and 50-250 g/L for nitric acid; and chloride ions of 0.1 g/L or more with hydrochloric acid and/or thiocyanate ions of 0.17 g/L or more can be added.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供一种在去除在不锈钢的热轧或热处理过程中产生的氧化鳞片的情况下，不进行酸洗前的喷丸或刷磨等机械预除垢的方法来有效地除去氧化皮。解决方案：除去在不锈钢表面产生的氧化垢的酸洗方法，包括在第一酸洗槽中依次将不锈钢浸入100g / L以上的盐酸溶液中，将酸性溶液包括氟酸在第二酸洗槽中为10g / L以上，在第三酸洗槽中为100g / L以上的盐酸溶液，在第四酸洗槽中为含有10g / L以上的氟酸的酸溶液。根据需要，可以向盐酸浴中加入0.001mol / L以上的巯基或0.001mol / L以上的胺的化合物，对于氟酸，氟酸浴的浓度可以为15-100g / L，硝酸为50-250g / L; 并且可以添加0.1g / L以上的氯离子，盐酸和/或硫氰酸根离子为0.17g / L以上。

5. 发明专利

JPH09296220A HEAT HOLDING FURNACE FOR ROLLING OF BAR AND WIRE, PIPE AND SHAPE STEEL 失效
公开(公告)号：JPH09296220A
公开(公告)日：1997-11-18
申请号：JP11383596
申请日：1996-05-08
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： TERAMAE AKIRA , NAKAMURA YOSHITAKA , MURATA YOSHIHIKO , TSUKAGOSHI KAZUMOTO , SHIYOUMOTO IKUO
IPC分类号： B21B45/00 , C21D1/00 , C21D9/00
摘要： PROBLEM TO BE SOLVED: To provide a heat holding furnace for rolling of a bar and wire, pipe and shape steel which can quickly and safely deal with a work in the heat holding furnace developed occurred due to working trouble after following process. SOLUTION: In the heat holding furnace 3 arranged between a heating furnace 1 and a rolling mill 5 in a rolling equipment for the bar steel, steel wire, steel pipe or the shape steel, a burner combustion type heating means as a temp. compensating means having a furnace length longer than the length of roll base stock so as to be possible to oscillate the roll base stock, a carrying table (roller) 4 in the furnace, a detecting means for detecting the front and the rear end parts of the roll base stock, and a control means for controlling reversal revolution switchings of the carrying table, are provided.

6. 发明专利

JPH04210811A GUIDING DEVICE FOR ROLLING SHAPES 失效
公开(公告)号：JPH04210811A
公开(公告)日：1992-07-31
申请号：JP40138490
申请日：1990-12-11
申请人： NIPPON STEEL CORP
发明人： MIURA YOSUKE , NISHINO TANEHARU , TERAMAE AKIRA , MIZUTANI HIDEO
IPC分类号： B21B1/088 , B21B1/08 , B21B39/14 , B21B39/16
摘要： PURPOSE:To guide a rolled stock with high accuracy between horizontal rolls by providing a guiding device with plural lower guide rollers and upper guide roller which is arranged between respective lower guide rollers and vertically moving/controlling the position of lower or upper guide rollers which are close to rolling rolls during rolling. CONSTITUTION:The upper guide roller 16-1 and lower guide roller 17 (17-1, 17-2) with which the web 13 of the rolled stock 1-1 is guided into the roll gap between the horizontal rolls 3, 3' are provided and the rolled stock 1-1 is guided with the upper and lower guide rollers. The lower guide roller 17 consists of plural lower guide rollers 17-1, 17-2 and the upper guide roller 16-1 is arranged between the lower guide rollers 17-1, 17-2. And the upper guide roller 16-1 which is closest to the rolling rolls 3, 3' is supported with a variable supporting device 18-1 which is separate from a supporting device 19-2 for lower guide roller and the upper guide roller 16-1 is vertically moved to a desired position with this variable supporting device 18-1 based on command from position detecting terminal or the like. In this way, the rolled stock is guided to the horizontal rolls with high accuracy and the generation of deviation of web center can be prevented.

7. 发明专利

JPS63299801A ROLLED H-SHAPE STEEL HAVING CURVED PART IN WEB 失效
公开(公告)号：JPS63299801A
公开(公告)日：1988-12-07
申请号：JP13327687
申请日：1987-05-30
申请人： NIPPON STEEL CORP
发明人： ITABASHI YOSHINORI , TERAMAE AKIRA
IPC分类号： E02D5/04 , B21B1/08 , B21B1/088
摘要： PURPOSE:To obtain an H-shape steel having a thin web section without generating web cooling waves by providing 1 or >=2 curved web parts formed by rolling in the transverse direction of the web section and disposing flat parts to allow passage of the material to straightener rolls to both sides of the curved parts. CONSTITUTION:The curved web parts 11b are provided to the position corresponding to the central axial line X of the H-shape steel 1. The curved parts are formed by hot rolling to the central part in the transverse direction of the web which is a material to be rolled to form the final product shape. The rigidity of the web parts is thereby increased to increase the yield strength of the web to buckling to the force larger than the internal compressive stress generated in the web in the cooling stage by which the generation of the web cooling waves is prevented. The peripheral face 51a of an upper horizontal roll 5a of a universal finishing mill 5 is formed to a face recessing at the transverse center of the roll barrel in order to shape the projecting face of the curved web part 11b and the peripheral face of the lower horizontal roll 5b is formed to a projecting face. The H-shape steel is thereby formed simply by changing the shape of the horizontal rolls of the universal finishing mill.

8. 发明专利

JPS56157460A EPOXY RESIN PAINT COMPOSITION 失效
公开(公告)号：JPS56157460A
公开(公告)日：1981-12-04
申请号：JP6151980
申请日：1980-05-09
申请人： NIPPON STEEL CORP , DAINIPPON TORYO KK
发明人： OZUKA YOSHIHIRO , MAEDA NARUAKI , TERAMAE AKIRA , MAEKAWA AKIZOU , ARAI HIROSHI
IPC分类号： C09D5/08 , C08G59/00 , C08G59/66 , C08L63/00 , C08L77/00 , C09D163/00
摘要： PURPOSE:A cold drying-type epoxy resin paint capable of giving a coat with excellent flexibility, corrosion proofness and adhesion, obtd. by the addition of a curing agent consisting of a specified proportion of a polysulfide resin and an amino compd. to an epoxy resin. CONSTITUTION:A composition comprising (A) 100pts.wt. epoxy resin having at least two epoxy groups in one molecule and (B) 20-400pts.wt. curing agent consisting of one equivalent, calculated on mercaptan, of a polysulfide resin and 3-30 equivalents, calculated on active hydrogen, of at least one amino compd. of active hydrogen equivalent 50-500, selected from an amineadduct resin, a polyamide resin and a polyamine. 1-400pts.wt. Asphaltic material may be added to said composition additionally. Undesirably, at an amt. of said amino compd. less than three active hydrogen equivalents, curing rate of the coat obtd. is reduced and its corrosion proofness is lowered, and at an amt. more than thirty equivalents, its flexibility is deteriorated.

9. 发明专利

JPS5156743A 失效
公开(公告)号：JPS5156743A
公开(公告)日：1976-05-18
申请号：JP13086974
申请日：1974-11-13
申请人： NIPPON STEEL CORP
发明人： TERAMAE AKIRA , TARUMI HIDEKAZU , WATANABE TAKASHI
IPC分类号： C25D11/34 , C25D11/36

10. 发明专利

JP2002088490A MOLTEN SALT COMPOSITION AND REPLENISHING METHOD FOR THE SAME 失效
公开(公告)号：JP2002088490A
公开(公告)日：2002-03-27
申请号：JP2000281536
申请日：2000-09-18
申请人： NIPPON STEEL CORP
发明人： MUTO IZUMI , MIZUTA YOSHIO , SHIMADA TAKAYUKI , OKIMORI MAYUMI , TERAMAE AKIRA , TENTOU KIYOUTAROU
IPC分类号： C11D7/06 , C11D7/10 , C11D7/60 , C23G1/32
摘要： PROBLEM TO BE SOLVED: To obtain a molten salt composition which is capable of achieving all of descaling and scale reforming characteristics, less carryover of a molten salt, a smaller amount of sludge to be produced and the assurance of the durability of a molten salt vessel made of ordinary steel, and to provide a method capable of continuously and automatically replenishing the molten salt without the need for long-term storage of a solid reagent having a deliquescent property. SOLUTION: The molten salt composition consists, by mass %, of >=0.2 to =0.2 to 7.5 to

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