公开(公告)号：US5861068A

公开(公告)日：1999-01-19

申请号：US766788

申请日：1996-12-13

申请人： Morihiro Hasegawa ,  Katsuhisa Miyakusu ,  Naoto Okubo ,  Sadayuki Nakamura

发明人： Morihiro Hasegawa ,  Katsuhisa Miyakusu ,  Naoto Okubo ,  Sadayuki Nakamura

IPC分类号： C21D6/00 ,  C21D8/02 ,  C22C38/20 ,  C22C38/42 ,  C21D8/00

CPC分类号： C22C38/42 ,  C21D8/0205 ,  C22C38/20 ,  C21D6/002 ,  C21D6/004

摘要： Stainless steel is improved in anti-microbial property by the addition of Cu in an amount of 0.4-5.0 wt. % and the precipitation of Cu-rich phase at the ratio of 0.2 vol. % or more. The Cu-rich phase is precipitated as minute particles uniformly dispersed in the matrix not only at the surface layer but also at the interior by heat treatment such as annealing or aging at 500.degree.-900.degree.. Since the anti-microbial property is derived from the material itself, the underlying stainless steel does not lose the excellent anti-microbial property even after it is polished or mechanically worked. Due to the anti-microbial property, the stainless steel is useful as material in various fields requiring sanitary environments, for example, kitchen goods, electric home appliances, devices or tools at hospitals, parts or interiors for building and grips or poles for electric trains or buses.

摘要翻译： 通过添加0.4-5.0重量％的Cu，不锈钢提高了抗微生物性能。 ％，富Cu相的析出比为0.2体积％。 ％ 或者更多。 不仅在表面层，而且在内部通过热处理如退火或在500-900℃的老化均匀分散在基体中的富集相沉淀在基质中。 由于抗微生物性质源自材料本身，所以下面的不锈钢即使在抛光或机械加工之后也不会失去优异的抗微生物性能。 由于抗微生物性能，不锈钢作为需要卫生环境的各种领域的材料，例如厨房用品，家用电器，医院的设备或工具，用于建筑物的部件或内部以及用于电动火车的夹具或杆的材料是有用的 或公共汽车。

公开(公告)号：US5458156A

公开(公告)日：1995-10-17

申请号：US143400

申请日：1993-10-29

申请人： Naoto Okubo ,  Yoshihiro Uematsu ,  Katsuhisa Miyakusu ,  Takashi Igawa ,  Yukio Oda ,  Yukito Nomura ,  Koichi Satake ,  Juichi Ozawa

发明人： Naoto Okubo ,  Yoshihiro Uematsu ,  Katsuhisa Miyakusu ,  Takashi Igawa ,  Yukio Oda ,  Yukito Nomura ,  Koichi Satake ,  Juichi Ozawa

IPC分类号： C22C38/00 ,  B32B15/01 ,  C22C38/40 ,  C22C38/58 ,  C23C30/00 ,  F16L9/02 ,  F16L9/14

CPC分类号： B32B15/015 ,  C22C38/40 ,  Y10S138/06

摘要： A multifold pipe made by multiple rolling up and turning of a copper coated steel sheet into a multifold pipe, characterized in that said steel sheet is a cold rolled sheet of a super soft austenitic stainless steel comprising by weight: up to 0.05% of C, up to 1.0% of Si, up to 5.0% of Mn, from 9.0% to 15.0% of Ni, from 15.0% to 20.0% of Cr, up to 0.04% of N, up to 5.0% of Cu, the balance being Fe and unavoidable impurities, wherein the alloying elements are further adjusted so that both the two relations (1) and (2) noted below are satisfied:K=20.5+13.0.times.C+0.99.times.Si-1.1.times.Mn-Ni-0.4.times.Cu +0.4.times.Cr+117.1.times.N.ltoreq.19.5 (1)H=27.1+60.9.times.C+0.26.times.Si-Ni-0.79.times.Cu+0.68 .times.Cr+52.6.times.N.ltoreq.29.0 (2)The multifold pipe according to the invention is excellent in fluid tightness of its fused part and in corrosion resistance.

摘要翻译： 一种多层管，其通过多层轧制和多层轧制而成的多层管，其特征在于，所述钢板为超软奥氏体不锈钢的冷轧板，其重量为C：0.05％以下， 高达1.0％的Si，至多5.0％的Mn，9.0％至15.0％的Ni，15.0％至20.0％的Cr，至多0.04％的N，至多5.0％的Cu，余量为Fe 和不可避免的杂质，其中进一步调整合金元素，使得满足以下两个关系式（1）和（2）：K = 20.5 + 13.0xC + 0.99xSi-1.1xMn-Ni-0.4xCu + 0.4xCr + 117.1×N