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Anti-corrosive alloy steel for heating radiator, and preparation method thereof

A technology of alloy steel and radiator, applied in the field of anti-corrosion alloy steel for heating radiators and its preparation, can solve the problems of insufficient anti-corrosion and heat conduction modification, to ensure anti-corrosion and thermal conductivity, reduce grain boundary segregation, and improve thermal conductivity Effect

Active Publication Date: 2021-07-02
JILIN DAWEI TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention aims at the problem that the graphene coating in the prior art has insufficient anticorrosion and heat conduction modification on the steel material, and adopts the method that the carbon composition in the alloy steel includes graphene

Method used

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  • Anti-corrosive alloy steel for heating radiator, and preparation method thereof
  • Anti-corrosive alloy steel for heating radiator, and preparation method thereof
  • Anti-corrosive alloy steel for heating radiator, and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] A preparation method of anti-corrosion alloy steel for heating radiators: comprising the following steps:

[0034]Feeding: Provide molten steel raw materials with optimized composition. When feeding Fe-graphene cored wire into the molten steel tank in a near-vacuum environment, control graphene to account for 35% of the final C mass in the alloy steel, and at the same time control the Fe-graphene cored wire in the molten steel The free oxygen content is lower than 5ppm, keep argon blowing and stirring, when blowing argon, blow argon gas into the molten steel through the argon hole at the bottom of the tank and stir, control the flow of argon blowing to make the surface of the molten steel weakly roll, the diameter of the exposed surface of the molten steel is 30mm, and the stirring time 3~10min;

[0035] Pouring: pouring on the upper machine after the stirring is completed, the superheat of the molten steel in the tundish needs to be controlled at 10°C for continuous ca...

Embodiment 2

[0039] A preparation method of anti-corrosion alloy steel for heating radiators: comprising the following steps:

[0040] Feeding: Provide molten steel raw materials with optimized composition. When feeding Fe-graphene cored wire into the molten steel tank in a near-vacuum environment, control the graphene to account for 45% of the final C mass in the alloy steel, and control the free carbon in the molten steel. When the oxygen content is lower than 5ppm, keep argon blowing and stirring. When blowing argon, blow argon into the molten steel through the argon hole at the bottom of the tank and stir. Control the flow of argon blowing to make the surface of the molten steel weakly roll. ~10min;

[0041] Pouring: pouring on the upper machine after the stirring is completed, the superheat of the molten steel in the tundish needs to be controlled at 10°C for continuous casting, and the cast slab is obtained through continuous casting;

[0042] Rolling: casting the slab produced by c...

Embodiment 3

[0045] A preparation method of anti-corrosion alloy steel for heating radiators: comprising the following steps:

[0046] Feeding: Provide molten steel raw materials with optimized composition. When feeding Fe-graphene cored wire into the molten steel tank in a near-vacuum environment, control the graphene to account for 40% of the final C mass in the alloy steel, and control the free carbon in the molten steel. When the oxygen content is lower than 5ppm, keep argon blowing and stirring. When blowing argon, blow argon into the molten steel through the argon hole at the bottom of the tank and stir. Control the flow of argon blowing to make the surface of the molten steel weakly roll. The diameter of the exposed surface of the molten steel is 20mm, and the stirring time is 3 ~10min;

[0047] Pouring: pouring on the upper machine after the stirring is completed, the superheat of the molten steel in the tundish needs to be controlled at 15°C for continuous casting, and the cast sl...

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Abstract

The invention relates to anti-corrosive alloy steel for a heating radiator. The anti-corrosive alloy steel comprises the following components by mass: 0.02%-0.05% of C, 0.02%-0.04% of Si, 0.005%-0.007% of Ni, 0.02%-0.04% of Al, 0.1%-0.2% of Mn, no more than 0.02% of S, 0.002%-0.004% of Ti, 0.004%-0.006% of Cu, no more than 0.025% of P, 0.003%-0.005% of N, 0.001%-0.003% of V, 0.005%-0.02% of Nb, 0.003%-0.02% of Mg, 0.005%-0.03% of Zr and the balance Fe and inevitable impurities. The content of graphene in the C is 20%-50%. The heat transfer coefficient of the radiator made of the anti-corrosive alloy steel is about 2-3 times larger than that of a radiator made of low-carbon steel. The inner surface, in contact with liquid, of the radiator does not need an anti-corrosive coating; compared with common carbon steel, the anti-corrosive alloy steel has the advantages that the corrosion rate, the number of corrosion pits and the average corrosion pit depth of the alloy steel are remarkably reduced, and the comprehensive corrosion resistance is improved by about 2-4 times.

Description

technical field [0001] The invention relates to the field of anti-corrosion alloy steel, in particular to an anti-corrosion alloy steel for heating radiators and a preparation method thereof. Background technique [0002] The heating radiator is a terminal device that conducts the heat of the heating medium to the room, and has become an indispensable part of life. Its quality, performance, and appearance are directly related to the safety, economy and decoration of use. The heating radiator, commonly known as the radiator, is the terminal device of the heating system. Our common heating radiator is installed indoors, and it is responsible for transferring the heat carried by the heat medium to the air in the room to compensate for the heat loss in the room and achieve the purpose of maintaining a certain air temperature in the room. To accomplish the above mission, the heating radiator must have the conditions of being able to withstand the pressure of the heat medium del...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/08C22C38/12C22C38/14C22C38/16C21C7/00C21C7/072C22C33/04
CPCC22C38/02C22C38/06C22C38/04C22C38/08C22C38/14C22C38/16C22C38/12C22C38/002C22C38/001C22C33/04C21C7/0056C21C7/072
Inventor 王维大
Owner JILIN DAWEI TECH DEV
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