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21. 发明专利

JPH02413B2 失效
公开(公告)号：JPH02413B2
公开(公告)日：1990-01-08
申请号：JP8842985
申请日：1985-04-24
申请人： NIPPON STEEL CORP
发明人： HARASE JIRO , TAKESHITA TETSUO , OOTA KUNITERU , YOSHIMURA HIROBUMI , UEDA MASANORI , HASHIMOTO HIROAKI
IPC分类号： C21D9/46 , C21D8/02 , C21D8/04 , C23G1/08

22. 发明专利

JPH01259143A CR-NI STAINLESS STEEL HARD TO CRACK IN CASTING STAGE OR HOT ROLLING STAGE THEREAFTER 失效
公开(公告)号：JPH01259143A
公开(公告)日：1989-10-16
申请号：JP8734488
申请日：1988-04-11
申请人： NIPPON STEEL CORP
发明人： UEDA MASANORI , ABE MASAYUKI
IPC分类号： C22C19/05 , C22C38/00 , C22C38/40
摘要： PURPOSE:To prevent the generation of cracks in material in the casting stage and hot rolling stage at the time of casting a Cr-Ni stainless steel having the thickness of an ingot close to the gauge of a manufacture with a synchronous continuous casting method by regulating the compsn. of a Cr-Ni stainless steel to a specific standard. CONSTITUTION:At the tome of subjecting a Cr-Ni stainless steel to continuous casting in the thickness close to the objective one with a synchronous continuous casting method in which the difference of relative velocity is not shown between an ingot and a mold, the compsn. in the molten metal of a stainless steel as a material is prepd. in such a manner that it contains, by weight, 11-40% Cr, 5-70% Ni, 0.05-2.0% Si,

23. 发明专利

JPH01240618A PRODUCTION OF CR-NI STAINLESS STEEL SHEET HAVING SMALL ANISOTROPY AND EXCELLENT SURFACE CHARACTERISTIC 失效
公开(公告)号：JPH01240618A
公开(公告)日：1989-09-26
申请号：JP6176788
申请日：1988-03-17
申请人： NIPPON STEEL CORP
发明人： ABE MASAYUKI , UEDA MASANORI
IPC分类号： C21D8/02 , C21D9/46
摘要： PURPOSE:To produce a stainless steel sheet having small anisotropy and excellent surface characteristic by continuously casting a Cr-Ni stainless steel to a thin steel sheet by a synchronized continuous casting method and hot rolling the ingot or cooling, coiling and pickling the same in the state of the continuous cast ingot under specific conditions, then subjecting the ingot to cold rolling and annealing. CONSTITUTION:The melt of the 18-8 type stainless steel sheet contg., by wt.% 18% Cr and 8% Ni as basic components, contg. =100 deg.C/sec cooling rate. After the cooled ingot is coiled at =900 deg.C and

24. 发明专利

JPS63123556A PRODUCTION OF CR-NI STAINLESS STEEL BEING HARD TO CRACK AT CASTING AND HOT ROLLING PROCESS 失效
公开(公告)号：JPS63123556A
公开(公告)日：1988-05-27
申请号：JP27042186
申请日：1986-11-13
申请人： NIPPON STEEL CORP
发明人： UEDA MASANORI , ABE MASAYUKI , TAKEUCHI HIDEMARO , MATSUMURA SHOGO
IPC分类号： B22D11/00 , B22D11/124 , C22C33/00 , C22C38/00 , C22C38/40 , C22C38/58
摘要： PURPOSE:To prevent the crack of a cast slab by adjusting S, O, Ca quantities in compositions related to N quantity, setting delta.Fe Cal (%) shown in the specific equation to the prescribed value and next cooling it by the specific cooling velocity. CONSTITUTION:In the stainless steel containing 16-35 wt.% Cr, 5-35% Ni, =-7. Further, the cooling velocity at the time of solidifying the cast slab and to 1100 deg.C are executed respectively at >= 30 deg.C/sec and >=10 deg.C/sec. In this way, as the ductility of cast slab after solid-infication is improved, the development of crack in the cast slab is prevented.

25. 发明专利

JPS62124220A MANUFACTURE OF STAINLESS STEEL PLATE 失效
公开(公告)号：JPS62124220A
公开(公告)日：1987-06-05
申请号：JP15744785
申请日：1985-07-17
申请人： NIPPON STEEL CORP
发明人： UEDA MASANORI , TSUCHINAGA MASAMITSU , TAKAHASHI RYOSUKE , YAMAMOTO HIRONORI , FUJITA YOSHIAKI
IPC分类号： C21D8/00 , C21D8/02
摘要： PURPOSE:To obtain a stainless steel plate in simplified manufacturing stages in an energy saving manner by heating a continuously cast slab or a billet having prescribed deltacal(%), hot rolling it at a specified interval between passes, carrying out finish rolling and water-cooling the resulting hot rolled plate at a prescribed average cooling rate. CONSTITUTION:A continuously cast slab or a billet of an austenitic or two-phase stainless steel having a composition satisfying >=-3% deltacal(%) defined by the formula is heated at 1,100-1,300 deg.C for >=10min and subjected to hot reverse rolling at 3-40sec interval between passes during more than half of all the reduction passes. After the rolling is finished at >=900 deg.C finishing temp., the resulting hot rolled plate is water-cooled from >=800 deg.C at 3 deg.C/sec average cooling rate in the temp. range of 800-300 deg.C. Thus, a stainless steel plate is obtd. with high productivity without carrying out solid-soln. heat treatment.

26. 发明专利

JPS6123259B2 JPS6123259B2 - 失效
公开(公告)号：JPS6123259B2
公开(公告)日：1986-06-05
申请号：JP5668882
申请日：1982-04-07
申请人： Nippon Steel Corp
发明人： UEDA MASANORI , NISHI TADASHI
IPC分类号： C22C38/00 , C22C38/40 , C22C38/54

27. 发明专利

JPS6169926A Manufacture of stainless steel thin plate excellent in corrosion resistivity 失效
标题翻译：不锈钢薄板在腐蚀电阻中的优势制造
公开(公告)号：JPS6169926A
公开(公告)日：1986-04-10
申请号：JP18963984
申请日：1984-09-12
申请人： Nippon Steel Corp
发明人： UEDA MASANORI , YOSHINARI KAZUHIKO , HASHIMOTO HIROAKI , FUJIWARA SHIGERU
IPC分类号： C21D9/46 , C21D8/02
摘要： PURPOSE: To manufacture a stainless steel thin plate with aim of practical corrosion resistivity without regard to appearance by cold-rolling, annealing and acid washing a heat-rolled plate of a stainless steel under the specified condition after removing a surface scale without annealing and acid-washing said stainless steel.
CONSTITUTION: A Cr group stainless steel slab is heat-rolled to make it a plate material, and applying liquid honing or the like for mechanical descaling and omitting annealing a heat rolled plate. The steel is acid-washed by an acid liquid of 3W20% HCl to be Hmax
摘要翻译：目的：为了制造具有实用的耐腐蚀性的不锈钢薄板，不考虑外观，通过冷却，退火和酸洗，不锈钢的热轧板在规定的条件下除去表面氧化皮而不退火和酸 - 洗涤不锈钢。构成：将Cr组不锈钢板进行热轧，制成板材，并进行液体珩磨等，进行机械除锈，省略热轧板退火。在冷轧前，用3-20％HCl的酸性液体将钢酸洗至钢板的表面粗糙度为Hmax <2。此后，直径为150mm，表面粗糙度<= 0.5mu的工作辊将薄板冷轧成板厚度为0.5mm。在650-1,150摄氏度的60秒内最终退火后，通过酸洗去除氧化皮，以低成本而不是外观制造不锈钢薄板。

28. 发明专利

JPS6053726B2 失效
公开(公告)号：JPS6053726B2
公开(公告)日：1985-11-27
申请号：JP12006881
申请日：1981-07-31
申请人： NIPPON STEEL CORP
发明人： UEDA MASANORI , SUMITOMO HIDEHIKO , YOSHIMURA HIROBUMI
IPC分类号： C22C38/00 , C21D8/02 , C21D8/04 , C21D9/00 , C21D9/46 , C22C38/04
摘要： An austenitic stainless steel of a specific composition is cast into a slab and subjected to hot rolling, descaling, cold rolling without a step of preliminary annealing, and annealing. The steel sheet or strip thus obtained is of excellent quality with a satisfactorily low degree of anisotropy.

29. 发明专利

JPS59166655A High purity and high cleanliness stainless steel excellent in gap corrosion resistance and anti-rust property and preparation thereof 失效
标题翻译：高纯度，高洁净度不锈钢，耐腐蚀性和抗腐蚀性能及其制备
公开(公告)号：JPS59166655A
公开(公告)日：1984-09-20
申请号：JP3788483
申请日：1983-03-08
申请人： Nippon Steel Corp
发明人： UEDA MASANORI
IPC分类号： C22C38/00 , B22D11/10 , C21D9/46 , C22C38/18 , C22C38/34 , C22C38/54
摘要： PURPOSE: To prepare the titled stainless steel excellent in processability and low in cost, by casting or heat treating molten steel having a specific composition consisting of C, Si, Mn, Cr, N, P, S, Al, O and Fe and prescribed in cleanliness at a specific temp.
CONSTITUTION: Molten steel which contains 0.01W0.1% C, 3% or less Si, 2% or less Mn, 14W26% Cr, 0.005W0.2% N, 0.02% or less P, below 0.001% S, 0.02W 0.2% Al, below 0.003% O and, if necessary, further contains one or more of elements selected from 3% or less Mo, 2% or less Cu, 2% or less Ni, 0.6% or less Ti, 0.02W0.5% V, 0.02W0.2% Nb and 0.01% or less B and comprises the remainder of substantially Fe and has cleanliness comprising the sum of oxide type impurities and sulfide type impurities of 0.02 or less is continuously cast at a temp. of ΔT°C≤45°C [ΔT°C= (the temp. °C of molten steel in a tandish during continuous casting) - (the solidification temp. °C of molten steel)] to obtain a cast piece which is, in turn, heated to 1,230°C or less or held thereto and the heated cast piece is hot rolled to obtain high purity and high cleanliness steel, excellent in gap corrosion resistance and anti-rust property.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过铸造或热处理具有由C，Si，Mn，Cr，N，P，S，Al，O和Fe组成的特定组成的钢水和规定的方法制备加工性和成本低的标准不锈钢在特定温度下的清洁度构成：含有0.01-0.1％C，3％以下Si，2％以下Mn，14-26％Cr，0.005〜0.2％N，0.02％以下P，低于0.001％S，0.02〜0.2 ％Al，低于0.003％O，如果需要，还含有一种或多种选自3％或更少的Mo，2％或更少的Cu，2％或更少的Ni，0.6％或更少的Ti，0.02-0.5％V ，0.02-0.2％Nb和0.01％或更少的B，并且包含基本上Fe的剩余部分，并且包含氧化物型杂质和硫化物型杂质的总和为0.02以下的清洁度在温度下连续铸造。的DELTAT deg.C <= 45℃[DELTAT deg.C =（连续铸造期间的tandish中的钢水的温度℃） - （钢水的凝固温度℃）]以获得将其加热至1230℃以下或保持在其上的铸件，将加热后的铸件热轧，得到高纯度，高清洁度的钢，间隙耐腐蚀性和防锈性优异。

30. 发明专利

JPS5842777A PICKLING METHOD FOR STAINLESS STEEL 失效
公开(公告)号：JPS5842777A
公开(公告)日：1983-03-12
申请号：JP13979981
申请日：1981-09-07
申请人： NIPPON STEEL CORP
发明人： UEDA MASANORI , ARAKAWA SHIZUNORI , KOREKODA TAKEYOSHI , KIYUUMA SHIYOUICHI
IPC分类号： C23G1/08
摘要： PURPOSE:To obtain a pickling soln. for stainless steel with superior characteristics by adding nitric acid, hydrochloric acid and ferric chloride in a specified ratio. CONSTITUTION:A soln. contg. 20-130g/l HNO3, 2-15g/l HCl and 3-25g/l ferric salt such as FeCl3 or Fe2(SO4)3 is used as a pickling soln. for uniformly removing scale formed on the surface of stainless steel at high speed. The pickling soln. has high pickling speed, does not cause surface roughtening due to pickling, does not pollute the service environment, and has superior characteristics.

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