High-strength corrosion-resistant steel bar prepared from vanadium-nitrogen alloy and preparation method of high-strength corrosion-resistant steel bar

Abstract

The invention discloses a high-strength corrosion-resistant steel bar prepared from a vanadium-nitrogen alloy and a preparation method of the high-strength corrosion-resistant steel bar, and relates to the technical field of steel bars. The method comprises the following steps: smelting pig iron and molten iron as raw materials into molten steel, adding various alloys such as vanadium, nitrogen and the like, reinforcing the steel bar, improving the production efficiency, deoxidizing, refining, pouring into a steel billet, heating, and rolling to obtain the steel bar; zinc oxide is deposited on the surface of the steel bar through radio frequency assisted high-frequency electric pulse, so that the steel bar has corrosion resistance; and then, a layer of carbon film is formed on the surface of the galvanized steel bar through electrodeposition, polishing treatment is conducted through high-current pulsed ion beam irradiation, the surface smoothness of the steel bar is improved, and the wear resistance of the steel bar is improved. The high-strength corrosion-resistant steel bar prepared from the vanadium-nitrogen alloy has the effects of wear resistance and corrosion resistance.

Description

technical field

[0001] The invention relates to the technical field of steel bars, in particular to a high-strength corrosion-resistant steel bar prepared from a vanadium-nitrogen alloy and a preparation method thereof. Background technique

[0002] In recent years, with the continuous upgrading of building structures, the strength of steel used has continued to increase, and new high-strength steels have continued to come out, which has promoted the upgrading of building steel bars and the revision and improvement of product standards. However, with the continuous development of science and technology, the requirements for high-strength steel bars continue to increase, and they can be used for a long time in some special environments. Therefore, high-strength steel bars must also have other properties, such as corrosion resistance and wear resistance.

[0003] At present, the problem of premature destruction of reinforced concrete structures due to corrosion of steel bars h...

Examples

Embodiment 1

[0029] A high-strength corrosion-resistant steel bar prepared by a vanadium-nitrogen alloy, mainly including: 100 parts of pig iron, 50 parts of lime, 25 parts of dolomite, 2 parts of magnesite ball slagging, 40 parts of composite alloy, and 2 parts of deoxidized agent, 1 part molten steel covering agent.

[0030] A preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys, the preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys mainly includes the following preparation steps:

[0031] (1) Add pig iron and molten iron into the converter according to the mass ratio of 1:18, raise the temperature to 1480°C, keep warm for 40 minutes, blowing, and then add lime, dolomite and magnesite ball slag, lime according to the mass ratio of 1:0.5:0.04 The mass ratio to pig iron is 1:0.5, the tapping temperature is 1670°C, the whole process of tapping argon is adopted, the flow rate of argon...

Embodiment 2

[0036] A high-strength corrosion-resistant steel bar prepared by a vanadium-nitrogen alloy, mainly including: 150 parts of pig iron, 75 parts of lime, 43 parts of dolomite, 5 parts of magnesite slag, 70 parts of composite alloy, and 5 parts of deoxidized Agent, 3 parts of molten steel covering agent.

[0037] A preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys, the preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys mainly includes the following preparation steps:

[0038] (1) Add pig iron and molten iron into the converter at a mass ratio of 1:18.5, raise the temperature to 1500°C, keep warm for 35 minutes, and then blow it, then add lime, dolomite and magnesite balls to make slag and lime at a mass ratio of 1:0.573:0.0667 The mass ratio to pig iron is 1:0.5, the tapping temperature is 1675°C, the whole process of bottom blowing argon is adopted in the tapping process...

Embodiment 3

[0043] A high-strength corrosion-resistant steel bar prepared by a vanadium-nitrogen alloy, mainly including: 200 parts of pig iron, 100 parts of lime, 60 parts of dolomite, 8 parts of magnesite slag, 100 parts of composite alloy, and 8 parts of deoxidized agent, 4 parts of molten steel covering agent.

[0044] A preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys, the preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys mainly includes the following preparation steps:

[0045] (1) Add pig iron and molten iron into the converter at a mass ratio of 1:19, raise the temperature to 1520°C, keep it warm for 30 minutes, blow it, and then add lime, dolomite and magnesite ball slag, lime at a mass ratio of 1:0.6:0.08 The mass ratio to pig iron is 1:0.5, the tapping temperature is 1680°C, the whole process of bottom blowing argon is adopted in the tapping process, the argon flow r...

technical field

[0001] The invention relates to the technical field of steel bars, in particular to a high-strength corrosion-resistant steel bar prepared from a vanadium-nitrogen alloy and a preparation method thereof. Background technique

[0002] In recent years, with the continuous upgrading of building structures, the strength of steel used has continued to increase, and new high-strength steels have continued to come out, which has promoted the upgrading of building steel bars and the revision and improvement of product standards. However, with the continuous development of science and technology, the requirements for high-strength steel bars continue to increase, and they can be used for a long time in some special environments. Therefore, high-strength steel bars must also have other properties, such as corrosion resistance and wear resistance.

[0003] At present, the problem of premature destruction of reinforced concrete structures due to corrosion of steel bars h...

Examples

Embodiment 1

[0029] A high-strength corrosion-resistant steel bar prepared by a vanadium-nitrogen alloy, mainly including: 100 parts of pig iron, 50 parts of lime, 25 parts of dolomite, 2 parts of magnesite ball slagging, 40 parts of composite alloy, and 2 parts of deoxidized agent, 1 part molten steel covering agent.

[0030] A preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys, the preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys mainly includes the following preparation steps:

[0031] (1) Add pig iron and molten iron into the converter according to the mass ratio of 1:18, raise the temperature to 1480°C, keep warm for 40 minutes, blowing, and then add lime, dolomite and magnesite ball slag, lime according to the mass ratio of 1:0.5:0.04 The mass ratio to pig iron is 1:0.5, the tapping temperature is 1670°C, the whole process of tapping argon is adopted, the flow rate of argon...

Embodiment 2

[0036] A high-strength corrosion-resistant steel bar prepared by a vanadium-nitrogen alloy, mainly including: 150 parts of pig iron, 75 parts of lime, 43 parts of dolomite, 5 parts of magnesite slag, 70 parts of composite alloy, and 5 parts of deoxidized Agent, 3 parts of molten steel covering agent.

[0037] A preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys, the preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys mainly includes the following preparation steps:

[0038] (1) Add pig iron and molten iron into the converter at a mass ratio of 1:18.5, raise the temperature to 1500°C, keep warm for 35 minutes, and then blow it, then add lime, dolomite and magnesite balls to make slag and lime at a mass ratio of 1:0.573:0.0667 The mass ratio to pig iron is 1:0.5, the tapping temperature is 1675°C, the whole process of bottom blowing argon is adopted in the tapping process...

Embodiment 3

[0043] A high-strength corrosion-resistant steel bar prepared by a vanadium-nitrogen alloy, mainly including: 200 parts of pig iron, 100 parts of lime, 60 parts of dolomite, 8 parts of magnesite slag, 100 parts of composite alloy, and 8 parts of deoxidized agent, 4 parts of molten steel covering agent.

[0044] A preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys, the preparation method for preparing high-strength corrosion-resistant steel bars by vanadium-nitrogen alloys mainly includes the following preparation steps:

[0045] (1) Add pig iron and molten iron into the converter at a mass ratio of 1:19, raise the temperature to 1520°C, keep it warm for 30 minutes, blow it, and then add lime, dolomite and magnesite ball slag, lime at a mass ratio of 1:0.6:0.08 The mass ratio to pig iron is 1:0.5, the tapping temperature is 1680°C, the whole process of bottom blowing argon is adopted in the tapping process, the argon flow r...

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