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1. 发明专利

JPH03122264A CHROMIZING METHOD OF STEEL STOCK 失效
公开(公告)号：JPH03122264A
公开(公告)日：1991-05-24
申请号：JP26151489
申请日：1989-10-06
申请人： NIPPON KARORAIZU KOGYO KK , SUMITOMO METAL IND
发明人： UEDA TOMONORI , UEHARA KATSUJI , YOSHIKAWA MASAYASU , OKADA KOICHI , IKEDA TOMIICHI , IMOTO TOSHIHIRO
IPC分类号： C23C22/72 , C23C10/40
摘要： PURPOSE:To prevent the sintering of a penetrant and to minimize the part free from the formation of a chromized layer by heating a steel stock previously coated with a powdery penetrant in a hydrogen-gas atmosphere to remove the resulting moisture and then carrying out chromizing treatment. CONSTITUTION:At the time of applying chromizing treatment to a steel stock by a powder packing method, the surface of a steel stock to be provided with a chromized layer is coated with a powdery penetrant. The resulting coated steel stock is heated and held to and at 500-600 deg.C in a hydrogen-gas atmosphere. After pretreatment for removing the resulting moisture is finished, chromizing treatment is performed.

2. 发明专利

JPH03122265A METHOD FOR PREVENTING OCCURRENCE OF PITTING IN CHROMIZING-TREATED MATERIAL 失效
公开(公告)号：JPH03122265A
公开(公告)日：1991-05-24
申请号：JP26151589
申请日：1989-10-06
申请人： NIPPON KARORAIZU KOGYO KK , SUMITOMO METAL IND
发明人： UEDA TOMONORI , UEHARA KATSUJI , YOSHIKAWA MASAYASU , KIYOTO HIDEO , IKEDA TOMIICHI , IMOTO TOSHIHIRO
IPC分类号： C23C22/72 , C23C10/40
摘要： PURPOSE:To prevent the occurrence of pitting with certainty by exerting chromizing treatment, removing a powdery penetrant, and then neutralizing and washing the remaining penetrant within 24hr. CONSTITUTION:After chromizing treatment is performed, e.g., by a powder packing method by using a powder penetrant, the above powder penetrant is removed. After the above removal of the powder penetrant, neutralization and washing are carried out within 24hr by using, e.g., an aqueous solution of sodium hydroxide. By this method, the occurrence of pitting in a chromizing- treated material can be prevented.

3. 发明专利

JPH0826448B2 失效
公开(公告)号：JPH0826448B2
公开(公告)日：1996-03-13
申请号：JP26151489
申请日：1989-10-06
申请人： NIPPON KARORAIZU KOGYO KK , SUMITOMO KINZOKU KOGYO KK
发明人： UEDA TOMONORI , UEHARA KATSUJI , YOSHIKAWA MASAYASU , OKADA KOICHI , IKEDA TOMIICHI , IMOTO TOSHIHIRO
IPC分类号： C23C22/72 , C23C10/40

4. 发明专利

CA2723522C NI-CR ALLOY MATERIAL 未知
公开(公告)号：CA2723522C
公开(公告)日：2014-02-18
申请号：CA2723522
申请日：2009-05-12
申请人： SUMITOMO METAL IND
发明人： KANZAKI MANABU , YONEMURA MITSUHARU , KIMOTO MASANARI , KINOMURA SHOJI , IMOTO TOSHIHIRO
IPC分类号： C22C19/05 , C22F1/00 , C22F1/02 , C22F1/10 , G21D1/00
摘要： An Ni-Cr alloy material which attains excellent corrosion resistance even in high-temperature water environments. The alloy material has a uniform lattice strain (S) satisfying the relationships 1) and (2): S

5. 发明公开

EP1475451A4 METHOD FOR HEAT TREATING Ni BASE ALLOY PIPE 有权
标题翻译：方法PIPE镍基合金的热处理
公开(公告)号：EP1475451A4
公开(公告)日：2010-08-25
申请号：EP03703337
申请日：2003-02-12
申请人： SUMITOMO METAL IND
发明人： MIYAHARA OSAMU , IMOTO TOSHIHIRO , ANADA HIROYUKI , KITAMURA KAZUYUKI
IPC分类号： B21C1/00 , C22F1/10 , B21C9/00 , C21D1/74 , C21D9/08 , C22C19/05 , C22F1/02 , C23C8/10 , C23C8/16 , F27B9/30 , F27D7/02
CPC分类号： C22C19/058 , C21D1/74 , C21D9/08 , C22F1/02 , C22F1/10 , C23C8/10 , C23C8/16

6. 发明公开

EP1312688A4 NICKEL-BASED ALLOY PRODUCT AND PROCESS FOR PRODUCING THE SAME 有权
标题翻译： ARTIKEL AUF NICKELBASIS-LEGIERUNG UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP1312688A4
公开(公告)日：2004-12-15
申请号：EP01956784
申请日：2001-08-01
申请人： SUMITOMO METAL IND
发明人： ANADA HIROYUKI , KITAMURA KAZUYUKI , IMOTO TOSHIHIRO , MIYAHARA OSAMU
IPC分类号： C22F1/10 , C22C19/05 , C22F1/00 , C22F1/02 , C23C8/10 , C23C8/80 , C23C28/04 , C23C28/00
CPC分类号： C23C28/044 , C23C8/10 , C23C8/80 , C23C28/048 , Y10T428/12618 , Y10T428/12944
摘要： A nickel-based alloy product having, on the surface thereof, an oxide coating film comprising at least two layers comprising a first layer which consists mainly of Cr2O3 and in which chromium accounts for 50% or more of all metal elements and a second layer consisting mainly of MnCr2O4 present on the outer side of the first layer, the Cr2O3 in the first layer having a crystal grain diameter of 50 to 1,000 nm, the oxide coating film having a total thickness of 180 to 1,500 nm; and a process for producing the nickel-based alloy product (1), characterized by subjecting a nickel-based alloy product to a treatment for forming an oxide coating film in which the product is held at 650 to 1,200 DEG C for 1 to 1,200 minutes in a hydrogen atmosphere or a hydrogen/argon mixture atmosphere each having a dew point of -60 to +20 DEG C. The product (1) is extremely less apt to release nickel in high-temperature water over long. It is suitable for use as a member especially for nuclear reactors.
摘要翻译：（1）一种镍基合金制品，其表面上具有包含至少两层的氧化物膜，即主要由Cr 2 O 3组成的第一层，铬含量相对于金属元素和第二层，其主要由MnCr 2 O 4组成，其中第一层中的Cr 2 O 3晶体的晶粒尺寸为50〜1000nm，氧化膜的总厚度为180〜1500nm。（2）（1）所述的镍基合金制品的制造方法，其特征在于，在氢气氛中或氢气氛中，将镍基合金制品进行氧化膜形成处理，将其维持在650〜1200℃的温度，氩混合气氛，露点为-60℃至+ 20℃，持续1至1,200分钟。上述产品（1）仅允许在高温水环境中的非常低水平的Ni释放很长一段时间，尤其适合用作核反应堆构件。

7. 发明专利

AU2003207059A1 METHOD FOR HEAT TREATING Ni BASE ALLOY PIPE 未知
公开(公告)号：AU2003207059A1
公开(公告)日：2003-09-04
申请号：AU2003207059
申请日：2003-02-12
申请人： SUMITOMO METAL IND
发明人： MIYAHARA OSAMU , IMOTO TOSHIHIRO , ANADA HIROYUKI , KITAMURA KAZUYUKI
IPC分类号： B21C1/00 , B21C9/00 , C21D1/74 , C21D9/08 , C22C19/05 , C22F1/02 , C22F1/10 , C23C8/10 , C23C8/16
摘要： A method of heat treatment for an efficient forming of two-layered oxide film on the inside surface of a Ni-base alloy tube. The oxide film suppresses the Ni release in a high-temperature water environment. At least two gas supplying devices are provided on the outlet side of a continuous heat treatment furnace; or one gas supplying device is provided respectively on the outlet side and the inlet side thereof. The tube is put into the furnace while supplying an atmospheric gas into the tube from the front end of the tube moving direction with one of these gas supplying devices and a gas introducing pipe, which is arranged inside the furnace, and this tube is maintained at 650 to 1200 DEG C for 1 to 1200 minutes. The atmospheric gas consists of hydrogen or a mixture of hydrogen and argon, whose dew point is in a range of from -60 DEG C to +20 DEG C. After the front end of the Ni-base alloy tube reaches the outlet side of the furnace, the supply of atmospheric gas into the tube is switched to the supply from other gas supplying device. The operations are repeated.

8. 发明专利

CA2723522A1 NI-CR ALLOY MATERIAL 未知
公开(公告)号：CA2723522A1
公开(公告)日：2009-11-19
申请号：CA2723522
申请日：2009-05-12
申请人： SUMITOMO METAL IND
发明人： KANZAKI MANABU , YONEMURA MITSUHARU , KIMOTO MASANARI , KINOMURA SHOJI , IMOTO TOSHIHIRO
IPC分类号： C22C19/05 , C22F1/00 , C22F1/02 , C22F1/10 , G21D1/00
摘要： An Ni-Cr alloy material which attains excellent corrosion resistance even in high-temperature water environments. The alloy material has a uniform lattice strain (S) satisfying the relationships (1) and (2): S

9. 发明专利

JP2004137549A Ni-Cr ALLOY 审中-公开
公开(公告)号：JP2004137549A
公开(公告)日：2004-05-13
申请号：JP2002302724
申请日：2002-10-17
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： KANZAKI MANABU , IMOTO TOSHIHIRO
IPC分类号： C22C19/05
摘要： PROBLEM TO BE SOLVED: To provide a Ni-Cr alloy containing a small amount of Zr, which has adequate strength for an application to pipes, structural materials or components of a nuclear power station or a chemical plant, and besides has better stress corrosion cracking resistance to alkali than conventional alloys have.
SOLUTION: The Ni-Cr alloy comprises 0.01-0.04% C, 1% or less Si, 0.05-1% Mn, 25-35% Cr, 40-70% Ni, 0.5% or less Al, 0.005% or more but less than 0.03% Zr, 0-0.5% Ti, N in an amount satisfying the expression, 0≤(N/14)-(Zr/91)≤0.0010, and the balance Fe with impurities in which each percentage of P and S contents is 0.015% or less.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003306718A Heat treatment method of fin tube 审中-公开
标题翻译：散热管热处理方法
公开(公告)号：JP2003306718A
公开(公告)日：2003-10-31
申请号：JP2002116107
申请日：2002-04-18
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： IMOTO TOSHIHIRO
IPC分类号： F28F1/30 , C21D1/74
摘要： PROBLEM TO BE SOLVED: To provide a heat treatment method of a fin tube for preventing deformation of fins under heat treatment, and efficiently performing the heat treatment without generating any oxide scale.
SOLUTION: In the heat treatment method of an outer fin tube for a heat exchanger for performing the heat treatment of the fin tube in a continuous bright heat treatment furnace having a heating zone and a cooling zone, the fin tube is placed on a belt conveyor, and subjected to the heat treatment while successively transferring the fin tube from the heating zone to the cooling zone.
COPYRIGHT: (C)2004,JPO

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