Process for producing corrosion-resistant layers
    2.
    发明授权
    Process for producing corrosion-resistant layers 失效
    生产耐腐蚀层的方法

    公开(公告)号:US5066523A

    公开(公告)日:1991-11-19

    申请号:US476242

    申请日:1990-02-07

    IPC分类号: C23C4/067

    CPC分类号: C23C4/067

    摘要: A process for producing a protective metal layer on tubes used in firing installations comprises thermal spraying on the tubes an atomized powder being formed from an alloy which comprises from about 15 to 35% Cr, from about 0.05 to 5.0% Mn, from about 0.01 to 3.0% C, from about 0.1 to 3.0% Si, from about 0.1 to 8.0% Mo, from about 2.0 to 15.0% Al, and balance Fe.

    摘要翻译: 在烧制装置中使用的管上制备保护金属层的方法包括在管上热喷涂由合金形成的雾化粉末,其包含约15至35%的Cr,约0.05至5.0%的Mn,约0.01至 3.0%C,约0.1-3.0%Si,约0.1-8.0%Mo,约2.0- 15.0%Al,余量为Fe。

    Process and material for producing corrosion-resistant layers
    4.
    发明授权
    Process and material for producing corrosion-resistant layers 失效
    生产耐腐蚀层的工艺和材料

    公开(公告)号:US4935266A

    公开(公告)日:1990-06-19

    申请号:US213711

    申请日:1988-06-30

    摘要: A process for producing a corrosion-resistant protection on stabilizing wall surfaces and superheater tubes in sulfur-bearing hot gases which are used at surfaces temperatures of over 400.degree. C. in combustion installations, and a material in powder form which is suitable for that process, are intended to make it possible to use such wall surfaces and superheater tubes in sulfur-bearing hot gases in a good and durable fashion.For that purpose, to form a protective layer which is preferably from 0.2 to 1.5 mm in thickness, a metal powder which is sprayed out of a molten state, of a given composition, with a surface area of more than 200 cm.sup.2 /g, is applied with an autogenous flame spray torch, with a quantitative gas flow rate of between about 1000 to 3000 NL/h, or 1500 to 2500 NL/h, for the combustion gas. The preferred composition of the metal powder used in Cr 15% to 35%, Mn 0.05% to 3%, Mo 0.05% to 5.0%, C 0.1% to 3%, Si 0.1% to 3%, Al 2% to 15%, with the balance Fe.

    摘要翻译: 在燃烧装置中表面温度超过400℃的含硫热气体的稳定壁表面和过热器管上产生耐腐蚀保护的方法以及适用于该方法的粉末形式的材料 旨在使得可以以良好和耐用的方式在含硫热气体中使用这种壁表面和过热器管。 为此,为了形成优选为0.2-1.5mm厚的保护层,表面积大于200cm2 / g的给定组合物以熔融状态喷出的金属粉末为 用自燃火焰喷枪施加燃烧气体的定量气体流量为约1000至3000 NL / h,或1500至2500 NL / h。 Cr 15%〜35%,Mn 0.05%〜3%,Mo 0.05%〜5.0%,C 0.1〜3%,Si 0.1%〜3%,Al 2%〜15%的金属粉末的优选组成, ,余额为Fe。