Outdoor high-strength corrosion-prevention steel plate and processing technology thereof

A high-strength, outdoor technology, applied in hot-dip plating process, metal material coating process, coating and other directions, can solve the problems of affecting the service life of steel, poor corrosion resistance, easy corrosion, etc., to improve tempering resistance, The effect of improving strength and wear resistance

Inactive Publication Date: 2018-05-18
ENG EQUIP CO LTD SUZHOU SAI SIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Steel plates are currently used in various fields. Although ordinary steel plates have good fire resistance and fire resistance, their strength is not enough, and they are prone to corrosion in some humid or acid-alkali environments, and their corrosion resistance is poor, which greatly affects the steel. service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This example provides a high-strength anti-corrosion steel plate for outdoor use, the mass percentage of its chemical composition is: C: 0.23%, Co: 1.24%, Ni: 0.91%, Cr: 4.12%, Mo: 0.86%, Al: 0.55 %, Ti: 0.42%, Si: 0.13%, Ge: 0.09%, W: 0.13%, Re: 0.16%, N: 0.31%, rare earth elements: 5.21%, and the balance is Fe and unavoidable impurities.

[0027] Wherein, the composition mass percent of rare earth elements is La: 14%, Pr: 23%, Nd: 16%, Sm: 28%, Gd: 6%, and the balance is Tb.

[0028] A method for preparing an outdoor high-strength anti-corrosion steel plate provided in this embodiment includes the following steps:

[0029] S1: Put each metal raw material in the electron beam melting furnace body, adjust the vacuum degree in the electron beam melting furnace body to 0.04Pa, the electron gun body makes the electron beam flow bombard the raw material until the raw material is melted into an alloy solution, and then add refining agent for refining deslagging;

[0030] S...

Embodiment 2

[0037] This example provides a high-strength anti-corrosion steel plate for outdoor use, the mass percentage of its chemical composition is: C: 0.38%, Co: 1.36%, Ni: 1.34%, Cr: 5.36%, Mo: 1.32%, Al: 0.57 %, Ti: 0.78%, Si: 0.18%, Ge: 0.14%, W: 0.16%, Re: 0.21%, N: 0.34%, rare earth elements: 5.89%, and the balance is Fe and unavoidable impurities.

[0038] Wherein, the composition mass percent of rare earth elements is La: 14%, Pr: 23%, Nd: 16%, Sm: 28%, Gd: 6%, and the balance is Tb.

[0039] A method for preparing an outdoor high-strength anti-corrosion steel plate provided in this embodiment includes the following steps:

[0040]S1: Put each metal raw material in the electron beam melting furnace body, adjust the vacuum degree in the electron beam melting furnace body to 0.05Pa, and the electron gun body makes the electron beam flow bombard the raw material until the raw material is melted into an alloy solution, and then add refining agent for refining deslagging;

[0041...

Embodiment 3

[0048] A high-strength anti-corrosion steel plate for outdoor use provided in this example, the mass percent of its chemical composition is: C: 0.31%, Co: 1.29%, Ni: 1.16%, Cr: 4.68%, Mo: 1.15%, Al: 0.56 %, Ti: 0.59%, Si: 0.15%, Ge: 0.12%, W: 0.15%, Re: 0.18%, N: 0.33%, rare earth elements: 5.56%, and the balance is Fe and unavoidable impurities.

[0049] Wherein, the composition mass percent of rare earth elements is La: 14%, Pr: 23%, Nd: 16%, Sm: 28%, Gd: 6%, and the balance is Tb.

[0050] A method for preparing an outdoor high-strength anti-corrosion steel plate provided in this embodiment includes the following steps:

[0051] S1: Put each metal raw material in the electron beam melting furnace body, adjust the vacuum degree in the electron beam melting furnace body to 0.045Pa, the electron gun body makes the electron beam flow bombard the raw material until the raw material is melted into an alloy solution, and then add a refining agent for refining deslagging;

[0052...

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PUM

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Abstract

The invention discloses an outdoor high-strength corrosion-prevention steel plate, and relates to the technical field of metal smelting. The outdoor high-strength corrosion-prevention steel plate comprises, by mass, 0.23%-0.38% of C, 1.24%-1.36% of Co, 0.91%-1.34% of Ni, 4.12%-5.36% of Cr, 0.86%-1.32% of Mo, 0.55%-0.57% of Al, 0.42%-0.78% of Ti, 0.13%-0.18% of Si, 0.09%-0.14% of Ge, 0.13%-0.16% ofW, 0.16%-0.21% of Re, 0.31%-0.34% of N, 5.21%-5.89% of rare earth elements, and the balance Fe and inevitable impurities. The invention further discloses a processing technology of the outdoor high-strength corrosion-prevention steel plate. The strength and toughness of the steel plate are effectively improved; and meanwhile the corrosion resistance of the steel plate is improved, and thus the service life of the steel plate is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of metal smelting, in particular to a high-strength anti-corrosion steel plate for outdoor use and a processing technology thereof. Background technique [0002] Steel is a general term for iron-carbon alloys with a carbon content between 0.02% and 2.11% by mass. The chemical composition of steel can vary greatly. Steel containing only carbon elements is called carbon steel (carbon steel) or ordinary steel; in actual production, steel often contains different alloying elements according to different uses, such as: manganese, Nickel, vanadium, etc. Human beings have a long history of application and research on steel, but until the invention of the Belleville steelmaking method in the 19th century, the production of steel was a high-cost and low-efficiency work. Today, steel has become one of the most used materials in the world due to its low price and reliable performance. It is an indispensable component...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/52C22C38/44C22C38/06C22C38/50C22C38/02C22C33/06C21D1/18C21D1/26C23C2/06C23C2/40
CPCC22C38/52C21D1/18C21D1/26C22C33/06C22C38/001C22C38/002C22C38/005C22C38/02C22C38/06C22C38/44C22C38/50C23C2/06C23C2/40
Inventor 顾建强
Owner ENG EQUIP CO LTD SUZHOU SAI SIDE
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