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21. 发明专利

JP2000026878A WATER-SOLUBLE COLD ROLLING OIL FOR STAINLESS STEEL SHEET AND ROLLING METHOD 失效
公开(公告)号：JP2000026878A
公开(公告)日：2000-01-25
申请号：JP19127598
申请日：1998-07-07
申请人： KYODO YUSHI , SUMITOMO METAL IND
发明人： SAKAKIBARA MASAYOSHI , KAMIYASHIKI HIROSHI , YAMAMOTO HIDEO , MATSUSHITA SATORU
IPC分类号： B21B27/10 , C10M129/16 , C10M129/76 , C10M135/10 , C10M169/04 , C10N20/00 , C10N20/02 , C10N40/24 , C10N50/02
摘要： PROBLEM TO BE SOLVED: To provide a water-soluble cold rolling oil for stainless steel sheet which is excellent not only in lubricity and gloss but also in eliminating abrasion powder and a rolling method for stainless steel sheet using the same. SOLUTION: This water-soluble cold rolling oil for stainless steel sheet, which contains a base oil, a nonionic surfactant, and an anionic surfactant, is characterized in that the base oil contains at least one oil selected from among mineral oils, synthetic ester oils, and synthetic hydrocarbon oils and has a kinemaic viscosity at 40 deg.C of 15 mm2/s or lower; that the amt. of a nonionic surfactant having an HLB of 14 or higher accounts for 10 wt.% or lower of the total amt. of the nonionic surfactant; and that the cold rolling oil has a knematic viscosity at 40 deg.C of 20 mm2/s or lower.

22. 发明专利

JPH10277604A METHOD FOR COLD-ROLLING STAINLESS STEEL SHEET 失效
公开(公告)号：JPH10277604A
公开(公告)日：1998-10-20
申请号：JP8673297
申请日：1997-04-04
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO HIDEO , MATSUSHITA SATORU
IPC分类号： B21B3/02 , B21B1/22 , B21B27/10 , B21B45/02
摘要： PROBLEM TO BE SOLVED: To provide a cold-rolling method for obtaining a steel sheet having high glossiness by executing high-speed rolling using the same emulsion of rolling oil for either of ferritic and austenitic stainless steel sheets. SOLUTION: The diameter of a work roll is taken as 50-120 mm, the viscosity of the original liquid of the emulsion of rolling oil as 6 to =60 mpm while supplying the emulsion of rolling oil to rolls and the steel sheet. In the case of the ferritic stainless steel sheet, at the time of rolling in at least one pass before finish rolling pass, the supply of the emulsion of rolling oil to the steel sheet is stopped, the original liquid of the rolling oil is supplied. In the case of the austenitic stainless steel, the original liquid of the rolling oil is supplied to the steel sheet on the inlet side of the 1st pass and the emulsion of the rolling oil whose average particle size is

23. 发明专利

JPH10273688A WATER-SOLUBLE COLD ROLLING OIL AGENT FOR STAINLESS STEEL PLATE AND ROLLING 失效
公开(公告)号：JPH10273688A
公开(公告)日：1998-10-13
申请号：JP7763597
申请日：1997-03-28
申请人： KYODO YUSHI , SUMITOMO METAL IND
发明人： SAKAKIBARA MASAYOSHI , OIKAWA ISAO , YAMAMOTO HIDEO , MATSUSHITA SATORU
IPC分类号： C10M169/04 , C10N20/02 , C10N30/02 , C10N30/04 , C10N30/06 , C10N30/08 , C10N40/24
摘要： PROBLEM TO BE SOLVED: To obtain the subject oiling agent exhibiting a low viscosity and an excellent lubricating property, capable of reducing an adhesion amount and the generation of seizing, and useful for producing highly lustrous stainless steel plates by a high speed rolling method by compounding a specific base oil, a surfactant and an extreme-pressure agent. SOLUTION: This water-soluble cold rolling oil agent comprises (A) a base oil comprising a mineral oil, a synthetic water (e.g. having 15-30 carbon atoms) or a synthetic hydrocarbon oil and having a viscosity of /s, preferably 4-6 mm /s, at 40 deg.C, (B) a surfactant such as a nonionic surfactant (e.g. a sorbitan surfactant having an HLB of >=13) or an anionic surfactant, and (C) an extreme- pressure agent such as a sulfur-based extreme-pressure agent having a sulfur content of >=10 wt.% and a phosphorus-based extreme-pressure agent having a phosphorus content of >=5 wt.%. The oiling agent preferably contains the components B and C in amounts of 5-30 wt.% and 1-10 wt.%, respectively, based on the whole amount of the oiling agent.

24. 发明专利

JPH09155404A STAINLESS STEEL SHEET EXCELLENT IN GRINDING PROPERTY AND ITS MANUFACTURE 失效
公开(公告)号：JPH09155404A
公开(公告)日：1997-06-17
申请号：JP31313695
申请日：1995-11-30
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO HIDEO , MATSUSHITA SATORU
IPC分类号： B21B3/02 , B21B1/22 , B21B27/00 , B21B27/02
摘要： PROBLEM TO BE SOLVED: To improve grinding efficiency by reducing the number of times of grinding for finishing the surface of a steel sheet to the target surface property by grinding with a buff or the like. SOLUTION: The stainless steel sheet has the center-line mean roughness (Ra) of the surface of

25. 发明专利

JPH0857755A ROLLING ROLLER SURFACE POLISHING METHOD 失效
公开(公告)号：JPH0857755A
公开(公告)日：1996-03-05
申请号：JP19831694
申请日：1994-08-23
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO HIDEO
IPC分类号： B24B47/20 , B21B28/02 , B21B28/04 , B24B5/37 , B24D5/14
摘要： PURPOSE: To provide a roller polishing method that can obtain excellent gloss and plane shape. CONSTITUTION: In a roller surface polishing method, the rotary shaft of a cylindrical grinding wheel with the circumferential face recessed in drum shape, and the rotary shaft of a roller are crossed within the plane parallel with the grinding face, an angle θformed by the circumferential speed vector VR of the roller and a polishing speed vector V0 is to be 80 deg.-100 deg., and the feed quantity of the grinding wheel is to be 1/2 or less of the roll axial projection width of the grinding wheels. Two grinding wheels with different grain sizes made rough on the front face side in relation to the feed direction are attached with the width thereof allocated at the integer ratio of 10 or less, and the grinding wheel with the circumferential face formed in drum shape is used with θ to be 80 deg.-100 deg. and the feed quantity to be not more than the roller axial projection width of the narrower side grinding wheel to polish the surface of a roller for rolling.

26. 发明专利

JPH079008A PRODUCTION OF TITANIUM PLATE AND TITANIUM ALLOY PLATE EXCELLENT IN SURFACE GLOSS 失效
公开(公告)号：JPH079008A
公开(公告)日：1995-01-13
申请号：JP15641693
申请日：1993-06-28
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO HIDEO , OYAGI RYOTARO
IPC分类号： B21B1/22 , B21B3/00 , B21B27/00 , C22F1/00 , C22F1/02 , C22F1/18
摘要： PURPOSE:To produce a titanium plate and titanium alloy plate excellent in mirror gloss by cold rolling. CONSTITUTION:In cold rolling consisting of intermediate rolling and finish rolling, with using a work roll of >=22mm diameter and a rolling oil of 30-200cSt viscosity at 50 deg.C, the stock is subjected to intermediate rolling with the rolling reduction of 70% at least out of the total rolling reduction applied to a stock to be rolled in both intermediate and finish rolling. Subsequently, the stock is subjected to finish rolling at 20% draft at least with using a work roll having 20-150mm diameter, =Hv850 surface hardness and a rolling oil of 5-20cSt viscosity at 50 deg.C. Sucessively, after the stock to be rolled is washed as a post process of cold rolling, annealed in inert gas atmosphere or vacuum.

27. 发明专利

JPH06234002A TEMPER-ROLLING METHOD FOR METALLIC PLATE 失效
公开(公告)号：JPH06234002A
公开(公告)日：1994-08-23
申请号：JP2045393
申请日：1993-02-09
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO HIDEO
IPC分类号： B21B1/22 , B21B27/00 , B21B27/02
摘要： PURPOSE:To provide a temper-rolling technology by which a metallic plate excellent in glossiness is manufactured. CONSTITUTION:A roll equipped with grinding traces on its surface, which are essentially in parallel with the axial direction of the roll whose average roughness of the center line in the peripheral direction of the roll is 0.02 to 0.1mum, and whose diameter >=500mm, is used as a work roll, and the temper-rolling method for a metallic plate with high glossiness, by which a temper-rolling is performed by using temper-rolling liquid whose viscosity id 1.5 to 5cST at 40 deg.C except an emulsion type, is attained. As to even a metallic plate with low glossiness, which is rolled at a high speed by a rolling mill with a large diameter work roll such as a tandem mill and a reversing mill, if it is rolled in this method, the quantities of oil pit, seizure flaws, and the attachment of wear powder are few. A metallic plate excellent in glossiness comparable a surface condition obtained when it is rolled at a low speed with a small diameter roll such as Sendzimir mill, etc., and a temper-rolling is performed with no lubrication, can be manufactured.

28. 发明专利

JPH05317910A MANUFACTURE OF METAL STRIP WITH HIGH GLOSSINESS 失效
公开(公告)号：JPH05317910A
公开(公告)日：1993-12-03
申请号：JP5316692
申请日：1992-03-12
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO HIDEO , MATSUDAIRA YUKIHIKO
IPC分类号： B21B1/22 , B21B3/02 , B21B27/00 , B21B45/02
摘要： PURPOSE:To provide a manufacturing method by which a metal strip having excellent surface characteristic matched with the one rolled at low speed with a Sendzimir mill, particularly the metal strip of a stainless steel strip, etc., attaching importance to the glossiness can be rolled at high efficiency by using a high speed rolling mill having high productivity. CONSTITUTION:In at least a final pass in the case of cold-rolling by a reverse- mill or in at least a final stand in the case of cold-rolling by a tandem-mill, the rolls having roll axial directions of the grinding stripes and 0.20-0.60mum the average roughness (Ratheta) at a center line in the circumferential direction of the roll are used as the working rolls to execute the cold-rolling. Thereafter, the skin pass rolling is executed by using the rolls having

29. 发明专利

JPH05212409A HOT ROLLING METHOD FOR HIGH-CR STEEL PRODUCT 失效
公开(公告)号：JPH05212409A
公开(公告)日：1993-08-24
申请号：JP2364392
申请日：1992-02-10
申请人： SUMITOMO METAL IND
发明人： GOTO KUNIO , YAMAMOTO HIDEO
IPC分类号： B21B1/22 , B21B1/26 , B21B3/02 , B21B45/02 , C23C8/60 , C23C22/00
摘要： PURPOSE:To prevent roughening of roll surfaces and the consequent deterioration in product quality by forming inorg. reaction films on the surfaces of high-Cr steel products, then hot rolling these steel products. CONSTITUTION:A chemical material contg. a sulfur element and phosphorus element, etc., is supplied as a surface treating agent in the fore stage of rolling to the high-Cr steel products contg. >=13wt.% Cr. As a result, the inorg. reaction films of sulfides, such as, for example, FeS and CrS, and phosphides, such as Fe2P and Cr2P, are formed on the surfaces of the steel products to substitute oxide scale films or to reinforce the surfaces; thereafter, the steel products are hot rolled. As a result, the intermetallic contact between the work rolls and a material to be rolled is prevented.

30. 发明专利

JPH05125556A METHOD FOR IMPROVING SURFACE ROUGHENING RESISTANCE OF TUNGSTEN-CONTAINING METALLIC PRODUCT AND METHOD FOR PREVENTING ROUGHENING OF SURFACE OF ROLL 失效
公开(公告)号：JPH05125556A
公开(公告)日：1993-05-21
申请号：JP29018091
申请日：1991-11-06
申请人： SUMITOMO METAL IND
发明人： AZUMA SHIGEKI , KUSABA YOSHIAKI , YUKI HIDEAKI , YAMAMOTO HIDEO
IPC分类号： C23C22/62 , B21B27/10 , B21B45/02 , C23C22/64 , C23C22/68
摘要： PURPOSE:To provide the method for prolonging the service life of a product or a roll and remarkably improving the working efficiency. CONSTITUTION:This cover is the method for improving the roughening of the surface of a tungstren-contg. metallic product in which a W-contg. metallic product constituted of a sintered hard alloy, high speed steel or the like is treated by an alkali aq. soln. of pH >8 contg. Ca ions to form the film of calcium tungstate. At the time of using the aq. soln. as a cooling water for hot rolling by a W-contg. roll, the roughening of using a the surface of the roll can be prevented. In the case of roll having low W content, tungstate. ions are moreover added to the aq. soln.

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