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1. 发明专利

JPH07113800A METALLOGRAPHIC STRUCTURE EVALUATION METHOD AND SYSTEM 失效
公开(公告)号：JPH07113800A
公开(公告)日：1995-05-02
申请号：JP28003193
申请日：1993-10-13
申请人： TOHOKU ELECTRIC POWER CO , BABCOCK HITACHI KK
发明人： MIYAGUCHI KENJI , NAKANO HITOSHI , WATABE TERUTSUGU , KOYAMA TERUO , TAMURA KOJI , SATO YASUSHI
IPC分类号： G01N33/20
摘要： PURPOSE:To evaluate a change in metallographic structure caused by heating aging quantitatively by an image processing device by performing image processing by using an image of a microscope as an input image, and calculating a quantity determinging parameter of the metallographic structure. CONSTITUTION:An image processing device 2 processes an image by using an image of an optical microscope 1 to observe metallographic structure as an input image, and calculates a quantity determining parameter of the metallographic structure. A photoelectro-magnetic disc 4 has an image data base to store a standard image of the metallographic structure changed by heating aging. A personal computer 3 has a data base to store damage evaluation data, and searches the standard image, and inputs it to the image processing device 2, and searches the damage evaluation data, and performs damage calculation. The image processing device 2 displays the input image and the standard image searched by the computer 3 simultaneously, and compares the standard image and the input image with each other, and judges whether it is equal metallographic structure or not.

2. 发明专利

JP2013064199A Heat-resistant steel 有权
标题翻译：耐热钢
公开(公告)号：JP2013064199A
公开(公告)日：2013-04-11
申请号：JP2012255868
申请日：2012-11-22
申请人： Babcock Hitachi Kk , バブコック日立株式会社 , Toshio Fujita , 利夫藤田
发明人： FUJITA TOSHIO , SATO YASUSHI , TAMURA KOJI
IPC分类号： C22C38/00 , C22C38/54
CPC分类号： C22C38/54 , C21D8/105 , C21D9/08 , C21D9/085 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/30 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/52 , F22B37/04 , F22B37/10
摘要： PROBLEM TO BE SOLVED: To provide a high strength heat-resistant steel which is excellent in long-term creep rupture strength and also steam oxidation resistance.SOLUTION: The heat-resistant steel has a chemical composition (by mass%): C: 0.01 to
摘要翻译：要解决的问题：提供长期的蠕变断裂强度以及耐蒸汽抗氧化性优异的高强度耐热钢。耐热钢的化学组成（质量％）：C：0.01〜<0.08％; Si：0.30〜1.0％ P：0.02以下 S：0.010％以下; Mn：0.2〜1.2％ Ni：0.3％以下; Cr：8.0〜11.0％ Mo：0.1〜1.2％ W：1.71〜2.02％ V：0.10〜0.30％; Nb：0.02〜0.12％ Co：0.01〜4.0％ N：0.01〜0.08％ B：不小于0.001％且小于0.010％; Cu：0.3％以下; 和Al：0.010％以下，（Mo％+ 0.5×W％）的含量限定为1.0〜1.6，（C％+ N％）的量限定为0.02〜0.15％，并且包括通过热精炼生产的回火马氏体单相组织。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2010065322A Ferritic heat resistant steel 有权
标题翻译：耐热钢
公开(公告)号：JP2010065322A
公开(公告)日：2010-03-25
申请号：JP2009276249
申请日：2009-12-04
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： FUJITA TOSHIO , ABE YOSHITERU , SATO YASUSHI , TAMURA KOJI
IPC分类号： C22C38/00 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a high strength ferritic heat resistant steel which is more excellent in long-term creep rupture strength than heretofore in order to obtain the high steam temperature of about 650°C. SOLUTION: The ferritic heat resistant steel has a composition containing, by mass, 0.05 to 0.08% C, 0.20 to 1.0% Si, 0.05 to 1.5% Mn, 0.20 to 0.5% Ni, 9.0 to 13.0% Cr, 0.05 to 0.5% Mo, 0.5 to 3.0% W, 0.10 to 0.30% V, 0.04 to 0.2% Nb, 0.5 to 5.0% Co, 0.01 to 0.1% N, 0.001 to 0.030% B, ≤0.01% Cu and ≤0.002% Al and has a martensitic single phase structure by refining heat treatment such as normalizing-tempering heat treatment; or the ferritic heat resistant steel has the components in the above ranges and has a two phase structure including a δ ferritic structure of 1 to 15% by volume in addition to the martensitic structure after the refining heat treatment. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种高强度的铁素体耐热钢，其比迄今为止更长的蠕变断裂强度优异，以获得约650℃的高蒸汽温度。铁素体系耐热钢的组成为，含有0.05〜0.08％的C，0.20〜1.0％的Si，0.05〜1.5％的Mn，0.20〜0.5％的Ni，9.0〜13.0％的Cr，0.05〜 0.5％Mo，0.5〜3.0％W，0.10〜0.30％V，0.04〜0.2％Nb，0.5〜5.0％Co，0.01〜0.1％N，0.001〜0.030％B，≤0.01％Cu和≤0.002％Al，通过精炼热处理如标准化回火热处理具有马氏体单相结构; 铁素体系耐热钢的组成为上述范围，除了精炼热处理后的马氏体组织以外，还具有含有1〜15体积％的δ铁素体组织的两相结构。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2005319494A Method for welding stainless steel tube and joint structure 有权
标题翻译：焊接不锈钢管和接头结构的方法
公开(公告)号：JP2005319494A
公开(公告)日：2005-11-17
申请号：JP2004140669
申请日：2004-05-11
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： NAKAO MOTOROKU , TAMURA KOJI , SATO YASUSHI , FUKUDA YUJI
IPC分类号： B23K9/23 , B23K9/00 , B23K9/028 , B23K31/00 , B23K101/06 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To provide a welding method where reheat cracks generated at new weld zones in the secularly used materials of high strength stainless steel tubes comprising small amounts of Nb and Ti can be surely and effectively prevented, and to provide a joint structure.
SOLUTION: In the method for welding stainless steel tubes, a short tube of a new material with a length of ≥20 mm is welded to the secularly used material of a stainless steel tube comprising ≥0.03% Nb or Ti and used at ≥500°C for ≥1,000 hr under an unconstrained condition, and thereafter, in the steel tube materials obtained from the obtained pair of the secularly used materials of the stainless steel tubes and the short tubes of the new materials, the new material short tubes are finally welded each other. It is also possible that, the sides of the tube inner faces in the weld zones are subjected to grinding or smoothing treatment before the new material short tubes are subjected to the final welding each other, or the new material short tubes are subjected to the final welding each other after stress removing annealing is performed to the weld zones.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种焊接方法，其可以可靠且有效地防止包含少量Nb和Ti的高强度不锈钢管的长期使用的材料在新的焊接区产生的再热裂纹，并且提供一种联合结构。
解决方案：在焊接不锈钢管的方法中，将长度≥20mm的新材料的短管焊接到包含≥0.03％Nb或Ti的不锈钢管的长期使用的材料上，并用于 ≥500℃，无约束条件下≥1000小时，然后在从所获得的一双不锈钢管的长期使用的材料和新材料的短管中获得的钢管材料中，新的材料短管最终彼此焊接。也可能的是，在新材料短管彼此进行最终焊接之前，焊接区域中的管内表面的侧面经受研磨或平滑处理，或者新材料短管受到最终的对焊接区域进行应力消除退火后，彼此焊接。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005091027A Method for diagnosing easiness to cause alkali stress corrosion cracking and alkali corrosion damage 审中-公开
标题翻译：用于诊断易产生ALKALI应力腐蚀性破裂和碱性腐蚀损伤的方法
公开(公告)号：JP2005091027A
公开(公告)日：2005-04-07
申请号：JP2003321858
申请日：2003-09-12
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： NAKAO MOTOROKU , TAMURA KOJI , FUKUDA YUJI , HASHIMOTO MASAMITSU
IPC分类号： G01N17/00 , F22B37/38
摘要： PROBLEM TO BE SOLVED: To provide a method for accurately evaluating the damage risk of a boiler.
SOLUTION: In a method for diagnosing the easiness to cause alkali stress corrosion cracking and alkali corrosion damage, the easiness to cause index (ADPI) of apparatus damage comprising a boiler constituting material such as stainless steel or a Ni base alloy is determined on the basis of the product of an alkali environment index (EI) determined from the pH alkal concentration degree of boiler water, an index determined upon whether stress removing annealing heat treatment (SR) is executed, a coefficient (WCI) expressing a water quality analyzing frequency and an inspection coefficient (IS) showing the frequency of non-destructive inspection. Alternatively, the easiness to cause the alkali stress corrosion cracking and alkali corrosion damage of the apparatus is diagnosed on the basis of an easiness to cause decision index (SADPI) of damage obtained by multiplying the easiness to cause index (ADPI) of the damage by a material quality coefficient (MI) and a region coefficient (PI).
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种准确评估锅炉损坏风险的方法。解决方案：在用于诊断容易引起碱应力腐蚀开裂和碱腐蚀损坏的方法中，确定包含诸如不锈钢或Ni基合金的锅炉构成材料的设备损坏指数（ADPI）的容易度根据从锅炉水的pH碱浓度确定的碱性环境指数（EI）的乘积，根据是否执行应力消除退火热处理（SR）确定的指标，表示水质的系数（WCI）分析频率和检测系数（IS），显示无损检测频率。或者，基于容易引起由容易引起损伤指数（ADPI）的损害所造成的损害的判定指标（SADPI），容易引起设备的碱应力腐蚀开裂和碱腐蚀损坏的容易性材料质量系数（MI）和区域系数（PI）。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005023378A HIGH Cr FERRITIC HEAT RESISTANT STEEL 有权
标题翻译：高铬耐热钢
公开(公告)号：JP2005023378A
公开(公告)日：2005-01-27
申请号：JP2003190757
申请日：2003-07-03
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： FUJITA TOSHIO , TAMURA KOJI , SATO YASUSHI
IPC分类号： C22C38/00 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide high strength ferritic heat resistant steel which has more excellent long time creep fracture strength compared to that of the conventional material.
SOLUTION: The high Cr ferritic heat resistant steel consists of a two phase structure including a tempered martensitic structure and a δferritic phase in ≤15% by volume. In this case, the tempered martensitic structure is a tempered martensitic single phase structure obtained by subjecting the steel having components comprising 0.01 to 0.10% C, 0.20 to 1.0% Si, 0.05 to 1.5% Mn, 0.01 to 0.5% Ni, 8.0 to 12.0% Cr, 0.05 to 0.5% Mo, 0.5 to 3.0% W, 0.10 to 0.30% V, 0.01 to 0.1% Nb, 0.5 to 5.0% Co, 0.005 to 0.1% N, 0.001 to 0.01% B, ≤0.01% Cu and ≤0.002% Al, and in which the amount of Mo%+1/2W% is limited to ≥1.3 to refining heat treatment, or is a tempered martensitic structure obtained by controlling the components so that the Cr equivalent is >10 to ≤13%.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供与常规材料相比具有更好的长时间蠕变断裂强度的高强度铁素体耐热钢。解决方案：高Cr铁素体耐热钢由包含回火马氏体组织和δ铁素体相的两相结构组成，体积不超过15％。在这种情况下，回火马氏体组织是通过使含有0.01〜0.10％C，0.20〜1.0％Si，0.05〜1.5％Mn，0.01〜0.5％Ni，8.0〜12.0％％Cr，0.05〜0.5％Mo，0.5〜3.0％W，0.10〜0.30％V，0.01〜0.1％Nb，0.5〜5.0％Co，0.005〜0.1％N，0.001〜0.01％B，≤0.01％Cu和 ≤0.002％Al，并且其中Mo％+ 1 / 2W％的量被限制在≥1.3以精炼热处理，或者是通过控制成分使Cr当量> 10至≤133而获得的回火马氏体结构％。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2000303138A FERRITIC HEAT RESISTANT STEEL 失效
公开(公告)号：JP2000303138A
公开(公告)日：2000-10-31
申请号：JP10774699
申请日：1999-04-15
申请人： BABCOCK HITACHI KK
发明人： TAMURA KOJI , SATO YASUSHI , ABE YOSHITERU , FUJITA TOSHIO
IPC分类号： C21D6/00 , C22C38/00 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To produce ferritic heat resistant steel having excellent high temp. strength and usable as a pressure resistant member under high temp.-high pressure in the temp. range of 200 to 500 deg.C without damaging the toughness, workability and weldability of the conventional Mo steel series ferritic heat resistant steel by adding a adequate amt. of W instead of Mo. SOLUTION: This steel contains, by weight, 0.03 to 0.25% C, 0.10 to 1.0% Si, 0.10 to 2.0% Mn,

8. 发明专利

JPH08152290A METHOD FOR WELDING DIFFERENT METALS AND WELDED STRUCTURE THEREOF 失效
公开(公告)号：JPH08152290A
公开(公告)日：1996-06-11
申请号：JP29431994
申请日：1994-11-29
申请人： BABCOCK HITACHI KK
发明人： ABE YOSHITERU , TAMURA KOJI , SATO YASUSHI
IPC分类号： F28F9/18
摘要： PURPOSE: To provide a method for welding without fusion failure or welding crack, etc., in the case of welding a tube plate of a ferrite steel to a tube plate of an austenite steel of different materials such as, for example, welding the tube of a boiler to a tube plate. CONSTITUTION: An annular protrusion 4 converged in section outward at the outer periphery of the end of a tube 2 of austenite steel is formed integrally with the tube 2, and a spot facing made of a circular bottom corresponding to the shape of the end of the tube 2 including the protrusion 4 and an oblique surface extending upward from the outer periphery of the bottom is formed at the plate 1 made of ferrite steel. After the end of the tube 2 is brought into contact with the bottom of the facing, N-based alloy welding material is so added as to melt the protrusion 4, at least welded by initial layer, and the welding material of an Ni-based alloy is so added that the Ni content of the welding metal of the initial layer becomes 40% or more.

9. 发明专利

JPH08134584A HIGH STRENGTH FERRITIC HEAT RESISTANT STEEL AND ITS PRODUCTION 失效
公开(公告)号：JPH08134584A
公开(公告)日：1996-05-28
申请号：JP27162394
申请日：1994-11-04
申请人： NIPPON STEEL CORP , BABCOCK HITACHI KK , FUJITA TOSHIO
发明人： HASEGAWA HIROSHI , NAOI HISASHI , FUJITA TOSHIO , TAMURA KOJI , SATO YASUSHI
IPC分类号： C22C29/06 , C21D6/00 , C21D8/00 , C22C38/00 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52
摘要： PURPOSE: To produce a ferritic heat resistant steel excellent in HAZ softening resistance by specifying a composition consisting of C, Si, Mn, Cr, Mo, W, V, Nb, N, Ti, Zr, and Fe and controlling the composition of a carbide. CONSTITUTION: This steel has a composition which contains, by weight, 0.01-0.30% C, 0.02-0.80% Si, 0.20-1.50% Mn, 0.50-5.00% Cr, 0.01-1.50% Mo, 0.01-3.50% W, 0.02-1.00% V, 0.01-0.50% Nb, and 0.001-0.06% N and contains 0.001-0.8% Ti and 0.001-0.8% Zr independently or in combination and further contains, if necessary, 0.2-5.0% of Co and/or Ni and in which the contents of P, S, and O are limited to

10. 发明专利

JPH02103602A DIAGNOSIS SUPPORTING DEVICE 失效
公开(公告)号：JPH02103602A
公开(公告)日：1990-04-16
申请号：JP14516389
申请日：1989-06-09
申请人： BABCOCK HITACHI KK
发明人： NISHINO SEIICHI , TAMURA KOJI , KOYAMA TERUO
IPC分类号： G01D21/00 , G05B13/02 , G06F9/44 , G06N5/04 , G21D3/00
摘要： PURPOSE:To prevent incidence of an accident similar to a past accident by preparing an appropriate inspection chart reflecting past examples of accidents. CONSTITUTION:An inference arithmetic section 6 selects past accidents occurred at plants having a structure or operating conditions similar to an object plant to be diagnosed from examples of plan accidents contained in a data base section 5 and statistically finds relations between operating hours and stating and stopping frequencies and accident occurring probabilites. Then the section 6 searches parts where the accident occurring probabilities are high from the object plant and prepares an inspection chart based on the searched results. Accordingly, the inspection chart which convers parts having higher accident occurring probabilities without omission and is less in fatile inspection can be prepared. Therefore, incidence of an accident similar to a past accident can be prevented.

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