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发明授权
CN102002643B 耐高温、耐腐蚀的热电偶保护管及其生产方法 失效 - 权利终止

耐高温、耐腐蚀的热电偶保护管及其生产方法
摘要：
本发明公开了一种耐高温、耐腐蚀的热电偶保护管及其生产方法，所述热电偶保护管材料的各成分组成的重量百分比如下：C:0.2-0.4，Si:0.4-0.6， Mn:0.3-0.5 P≤0.04，S≤0.03，Cr:27-29，Ni:19-21，Mo≤0.30，V≤0.10，Ti≤0.40， Cu≤0.10，Al≤0.04，Re的加入量≤0.05，余量为Fe及杂质，且杂质总含量≤0.10。生产方法包括合金钢制备和铸造成型。试验证明采用本发明的热电偶保护管材料保护热电偶，使用寿命在30个月左右。
摘要（英）：

The invention discloses a thermocouple protection pipe resisting high temperature and corrosion and a production method thereof. The material of thermocouple protection pipe comprises the following components in percentage by weight: 0.2-0.4% of C, 0.4-0.6% of Si, 0.3-0.5% of Mn, less than or equal to 0.04% of P, less than or equal to 0.03% of S, 27-29% of Cr, 19-21% of Ni, less than or equal to 0.30% of Mo, less than or equal to 0.10% of V, less than or equal to 0.40% of Ti, less than or equal to 0.10% of Cu, less than or equal to 0.04% of Al, less than or equal to 0.05% of Re and the balance Fe and impurities, wherein the total content of the impurities is less than or equal to 0.10%. The production method comprises the steps of preparing alloy steel and casting and moulding. Experiments prove that the service life of the thermocouple protected by the material of the thermocouple protection pipe is about 30 months.

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