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Zirconium element doped alloy steel material

An alloy steel and element technology, applied in the field of zirconium-doped alloy steel materials, can solve the problems of dispersibility and density value that cannot be solved at the same time, limit the large-scale development of the steel industry, low quality stability and other problems, and achieve product defects. The effect of less, high stiffness and excellent wear resistance

Inactive Publication Date: 2016-09-28
ANHUI HEKUANG MACHINERY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Although the author provided two kinds of niobium carbide composite powders, one close to the density value of molten steel and one with good dispersion in molten steel, the problems of dispersibility and density value cannot be solved simultaneously in the steelmaking process, which limits the With the large-scale development of the industry, and the aluminum powder is prone to oxidation, the quality stability is not high when preparing aluminum-doped niobium carbide, which seriously affects the strengthening effect

Method used

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Embodiment Construction

[0015] A zirconium-doped alloy steel material is prepared according to the following steps:

[0016] a. Smelting: After melting pig iron into molten steel, raise the temperature in the furnace to 1500°C, then add carbon, ferrosilicon, molybdenum and manganese, keep warm for 20 minutes, add boron, phosphorus, sulfur, iridium and zirconium, and add modification after it is completely melted Niobium carbide, raise the temperature to 1630°C, keep stirring at constant temperature for 5 minutes to obtain matrix alloy liquid;

[0017] b. Refining: transfer the matrix alloy liquid to the refining furnace for slagging treatment, add anti-friction agent to continue smelting after treatment, the dosage ratio of anti-friction agent to molten steel is 3 kg / ton, and carry out secondary discharge after it is completely melted Slag treatment;

[0018] c. Detection: Detect the component content of the alloy liquid. The elements by weight percentage are: carbon: 0.2%, silicon: 1.6%, manganese:...

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Abstract

The invention discloses a zirconium element doped alloy steel material. The zirconium element doped alloy steel material is prepared from, by weight percent, 0.2%-0.6% of carbon, 1.6%-2.5% of silicon, 1.0%-1.5% of manganese, 2.6%-2.8% of molybdenum, 0.3%-0.5% of boron, 0.04%-0.06% of zirconium, 0.003%-0.05% of aluminum, 0.01%-0.02% of iridium, not larger than 0.015% of sulfur, not larger than 0.015% of phosphorus and the balance iron and inevitable impurities. The prepared alloy steel material is attractive in appearance, large in rigidity, high in wear and corrosion resistance and low in cost; the preparation process is simple, and high operability is achieved; and the alloy steel material has few product defects and is worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a zirconium-doped alloy steel material. Background technique [0002] With the gradual improvement of people's living standards, automobiles have become the main means of transportation for people to travel. Automobile materials are generally made of steel materials, which occupy an important position in the mechanical engineering manufacturing industry because of their high strength and good toughness. In recent years, mechanical engineering structures have been increasingly developed in the direction of giantization and high parameters, which put forward higher and higher requirements for the performance of steel materials. The addition of particle-strengthened steel materials has many advantages, but it is often at the expense of increasing strength and hardness. The premise is at the expense of reducing the plasticity and toughness. In the article "Preparation Technology ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/12C22C38/02C22C38/04C22C38/32C22C38/14C22C38/06C22C33/04B22F1/02C21C7/00
CPCC21C7/00C22C33/04C22C38/002C22C38/02C22C38/04C22C38/06C22C38/12C22C38/14C22C38/32B22F1/16
Inventor 胡乾桂
Owner ANHUI HEKUANG MACHINERY
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