High-temperature-resistant low-carbon steel material and preparation method thereof

A low-carbon steel and high-temperature-resistant technology, which is applied in the field of high-temperature-resistant low-carbon steel materials and their preparation, can solve the problems of wear resistance, hardness, rust resistance, corrosion resistance, high and low temperature resistance, brittleness, toughness, and cost. Taking into account other issues to achieve the effects of good wear resistance, reduced oxide inclusions, and excellent high temperature corrosion resistance

Inactive Publication Date: 2014-03-26
TONGLING ANDONG CAST STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The development of alloy steel has a history of more than 100 years. So far, a variety of alloy steels have been applied in industry, mainly including the following types: quenched and tempered steel, spring steel, tool steel, high speed steel, die steel, high school Low-carbon alloy steel, etc., so far, although alloy steel technology has been greatly developed, there are still many problems, such as wear resistance, hardness,

Method used

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Examples

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Example Embodiment

[0013] A high-temperature-resistant low-carbon steel material, which contains chemical elements and their mass percentages are: carbon 0.1-0.25, zinc 4.0-4.5, aluminum 1.3-1.5, copper 2.6-2.9, magnesium 3.0-3.2, Si0.6- 0.8, Mn6.3-6.5, B0.005-0.008, Ti0.03-0.05, P≤0.030, S≤0.030, and the balance is iron.

[0014] The production method of described high-temperature-resistant low-carbon steel material:

[0015] (1) Put pig iron and scrap iron into the furnace at a ratio of 1:2 and melt them as the source of iron matrix; carry out desulfurization, deoxidation, alloying, refining with refining agents, casting, post-casting heat treatment, etc.;

[0016] (2) The order of batches of alloying elements put into the furnace during the alloying process is: (1) Magnesium, Zinc, Ti; (2), Aluminum, Si, Copper; (3) Other remaining ingredients; The time interval of the elements is 9 minutes, and stir evenly after feeding.

[0017] The production method of the high-temperature-resistant low-...

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Abstract

The invention relates to a high-temperature-resistant low-carbon steel material which contains the following chemical components in percentage by mass: 0.1-0.25% of carbon, 4.0-4.5% of zinc, 1.3-1.5% of aluminum, 2.6-2.9% of copper, 3.0-3.2% of magnesium, 0.6-0.8% of Si, 6.3-6.5% of Mn, 0.005-0.008% of B, 0.03-0.05% of Ti, at most 0.030% of P, at most 0.030% of S and the balance of iron. By using the raw material combination of the aluminum, magnesium and the like, the proportion, production technique and feed sequence are reasonably arranged, so that the formed alloy material has the characteristics of excellent high-temperature corrosion resistance, no scale at high temperature, high ductility, high plasticity, high strength, high hardness, favorable abrasion resistance and the like. Part of scrap iron is used as the raw material, thereby enhancing the quality stability and uniformity of the alloy. The material is used in cast parts exposed in a high-temperature environment for a long time. The refining agent is added to lower the porosity by 1-2 degrees.

Description

technical field [0001] The invention relates to the field of metal material preparation, in particular to a high-temperature-resistant low-carbon steel material and a preparation method thereof. Background technique [0002] The development of alloy steel has a history of more than 100 years. So far, a variety of alloy steels have been applied in industry, mainly including the following types: quenched and tempered steel, spring steel, tool steel, high speed steel, die steel, high school Low-carbon alloy steel, etc., so far, although alloy steel technology has been greatly developed, there are still many problems, such as wear resistance, hardness, rust resistance, corrosion resistance, high and low temperature resistance, brittleness, toughness, Costs cannot be taken into account. In many cases, the production requirements cannot be met, and further improvements are needed to improve production efficiency, reduce costs, improve safety, provide guarantee for the development ...

Claims

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Application Information

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IPC IPC(8): C22C38/16C22C33/04C21D6/00
Inventor 梅百荣徐志勇
Owner TONGLING ANDONG CAST STEEL
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