Stainless steel for high-purity gases
    1.
    发明授权
    Stainless steel for high-purity gases 失效
    不锈钢用于高纯度气体

    公开(公告)号:US5942184A

    公开(公告)日:1999-08-24

    申请号:US927484

    申请日:1997-09-11

    IPC分类号: C22C38/22 C22C38/40

    CPC分类号: C22C38/22 C22C38/40

    摘要: Stainless steels for high-purity gases which are superior in non-dusting characteristics required at the time of welding, corrosion resistance and non-catalytic property and which can be widely utilized in the manufacturing process of semiconductors, liquid crystal displays or the like. The austenitic stainless steels of the present invention are characterized by having decreased Mn, Al, Si and O contents. The austenitic stainless steels meet the non-dusting characteristics which are required at the time of welding. In addition, corrosion resistance, abrasion resistance and machinability are improved. The ferritic and the duplex stainless steels of the present invention are characterized in that they can readily form thereon a Cr oxide layer when subjected to oxidation treatment. The ferritic and two-phase stainless steels are superior in corrosion resistance to corrosive gases, and contain non-catalytic property against chemically-unstable gases.

    摘要翻译: 用于高纯度气体的不锈钢,其在焊接时所需的无粉尘特性优异,耐腐蚀性和非催化性能,可广泛用于半导体,液晶显示器等的制造过程中。 本发明的奥氏体不锈钢的特征在于Mn,Al,Si和O含量降低。 奥氏体不锈钢满足焊接时所需的无尘特性。 另外,耐腐蚀性,耐磨损性和切削性提高。 本发明的铁素体和双相不锈钢的特征在于,当进行氧化处理时,它们可以容易地在其上形成Cr氧化物层。 铁素体和两相不锈钢的耐腐蚀性优于腐蚀性气体,并且对化学不稳定的气体具有非催化性能。

    Stainless steel for high-purity gases
    2.
    发明授权
    Stainless steel for high-purity gases 失效
    不锈钢用于高纯度气体

    公开(公告)号:US5830408A

    公开(公告)日:1998-11-03

    申请号:US624527

    申请日:1996-04-10

    CPC分类号: C22C38/22 C22C38/40

    摘要: Stainless steels for high-purity gases which are superior in non-dusting characteristics required at the time of welding, corrosion resistance and non-catalytic property and which can be widely utilized in the manufacturing process of semiconductors, liquid crystal displays or the like. The austenitic stainless steels of the present invention are characterized by having decreased Mn, Al, Si and O contents. The austenitic stainless steels meet the non-dusting characteristics which are required at the time of welding. In addition, corrosion resistance, abrasion resistance and machinability are improved. The ferritic and the duplex stainless steels of the present invention are characterized in that they can readily form thereon a Cr oxide layer when subjected to oxidation treatment. The ferritic and two-phase stainless steels are superior in corrosion resistance to corrosive gases, and contain non-catalytic property against chemically-unstable gases.

    摘要翻译: PCT No.PCT / JP94 / 01737 Sec。 371日期:1996年4月10日 102(e)日期1996年4月10日PCT 1994年10月17日PCT PCT。 公开号WO95 / 11321 日期1995年04月27日不锈钢用于高纯度气体,其在焊接时所需的无粉尘特性优异,耐腐蚀性和非催化性能,可广泛用于半导体,液晶显示器的制造过程 或类似物。 本发明的奥氏体不锈钢的特征在于Mn,Al,Si和O含量降低。 奥氏体不锈钢满足焊接时所需的无尘特性。 另外,耐腐蚀性,耐磨损性和切削性提高。 本发明的铁素体和双相不锈钢的特征在于,当进行氧化处理时,它们可以容易地在其上形成Cr氧化物层。 铁素体和两相不锈钢的耐腐蚀性优于腐蚀性气体,并且对化学不稳定的气体具有非催化性能。