Acid soil corrosion-resistant steel and preparation method thereof

A soil corrosion and acid resistance technology, applied in the field of metallurgy, can solve the problems of corrosion, affecting the safe operation of electrical equipment, loss of land for electrical equipment, etc., and achieve the effect of satisfying strength and good acid resistance to soil corrosion.

Inactive Publication Date: 2017-01-25
GUANGXI SHENGLONG METALLURGICAL CO LTD
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AI Technical Summary

Problems solved by technology

Most of the existing grounding grids are made of galvanized steel, and since the grounding material needs to be buried underground for a long time, the corrosion problem is more serious, and it is easy to cause the "lost ground" of electrical equipment, thereby affecting the safe operation of electrical equipment and endangering personal safety. In severe cases, even It will cause partial breakage of the grounding grid, resulting in major accidents and economic losses

Method used

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Embodiment Construction

[0014] In order to facilitate the understanding of the present invention, the following will describe the present invention more fully through specific embodiments. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0015] Acid soil corrosion-resistant steel, its components and weight percentages are: C: 0.174-0.182%, Si: 0.51-0.55%, Mn: 1.43-1.63%, P: ≤0.008%, S: ≤0.002%, Nb: 0.018~0.024%, Ti: 0.029~0.032%, V: 0.032~0.045%, W: 0.06~0.12%, Mg: 0.0081~0.0093%, Sn: 0.08~0.13%, O: ≤0.0016%, and the rest are Fe and Inevitable inclusion.

[0016] The preparation method of acid soil corrosion resistant steel comprises the following steps:

[0017] (1) Carry out desulfurization of molten iron, and control S≤0.001% in molten iron;

[0018] (2) Carry out con...

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Abstract

The invention relates to acid soil corrosion-resistant steel. The acid soil corrosion-resistant steel comprises the following components in percentage by weight: 0.174-0.182% of C, 0.51-0.55% of Si, 1.43-1.63% of Mn, smaller than or equal to 0.008% of P, smaller than or equal to 0.002% of S, 0.018-0.024% of Nb, 0.029-0.032% of Ti, 0.032-0.045% of V, 0.06-0.12% of W, 0.0081-0.0093% of Mg, 0.08-0.13% of Sn, smaller than or equal to 0.0016% of O and the balance of Fe and inevitable impurities. According to the acid soil corrosion-resistant steel and the preparation method thereof, provided by the invention, the acid soil corrosion-resistant steel meets the strength of building steel and has good acid soil corrosion resistance.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to acid soil corrosion resistant steel and a preparation method thereof. Background technique [0002] The grounding grid of the transmission line plays the role of discharging and equalizing the lightning, static electricity and fault current, and is an important device to ensure the safe operation of the power grid. Most of the existing grounding grids are made of galvanized steel, and since the grounding material needs to be buried underground for a long time, the corrosion problem is more serious, and it is easy to cause the "lost ground" of electrical equipment, thereby affecting the safe operation of electrical equipment and endangering personal safety. In severe cases, even It will cause partial breakage of the grounding grid, resulting in major accidents and economic losses. Contents of the invention [0003] In view of the above technical problems, the present invention provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/12C22C38/14C22C33/04
CPCC22C38/02C22C33/04C22C38/002C22C38/008C22C38/04C22C38/12C22C38/14
Inventor 柯雪利黄玉鸿蔡恒忠
Owner GUANGXI SHENGLONG METALLURGICAL CO LTD
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