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A method of corrosion -resistant wear -resistant high manganese steel and its preparation method

A high-manganese steel and corrosion-resistant technology, applied in the field of metal materials, can solve the problems of complex smelting process, poor corrosion resistance, long production cycle, etc., and achieve the effect of improving oxidation resistance, corrosion resistance, and short production cycle

Active Publication Date: 2016-08-24
江苏久华环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the high manganese steel produced at present has improved its wear resistance, it generally has the problem of poor corrosion resistance, and the smelting process is complicated, the production cycle is long, and the production efficiency is low.

Method used

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  • A method of corrosion -resistant wear -resistant high manganese steel and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A corrosion-resistant and wear-resistant high-manganese steel, which is composed of the following components by weight percentage: 1.2% carbon, 15% manganese, 0.5% silicon, 11.5% chromium, 0.55% molybdenum, 0.4% nickel, 0.2% aluminum, and 0.1% copper , nitrogen 0.01%, rare earth elements 0.02%, phosphorus 0.01%, sulfur 0.01%, and the balance is iron.

[0022] The preparation method of the corrosion-resistant and wear-resistant high manganese steel comprises the following preparation steps:

[0023] (1) Smelting: Add industrial pure iron, ferrovanadium nitride, ferromanganese, industrial pure aluminum and other alloys and metal raw materials into the electric furnace, heat to melt them all, maintain at 1750°C for 30 minutes, and the temperature of the furnace is 1480°C ;

[0024] (2) Casting: add it to the mold to form the first product, and the casting temperature is 1380°C;

[0025] (3) Heat treatment after casting: raise the temperature of the first product to 1000°...

Embodiment 2

[0028] A corrosion-resistant and wear-resistant high-manganese steel, which is composed of the following components by weight percentage: 1.0% carbon, 14% manganese, 0.48% silicon, 10.5% chromium, 0.5% molybdenum, 0.3% nickel, 0.1% aluminum, and 0.08% copper , nitrogen 0.01%, rare earth elements 0.01%, phosphorus 0.02%, sulfur 0.02%, and the balance is iron.

[0029] The preparation method of the corrosion-resistant and wear-resistant high manganese steel comprises the following preparation steps:

[0030] (1) Melting: Add industrial pure iron, ferrovanadium nitride, ferromanganese, industrial pure aluminum and other alloys and metal raw materials into the electric furnace, heat to melt them all, maintain at 1730°C for 30 minutes, and the temperature of the furnace is 1460°C ;

[0031] (2) Casting: add it to the mold to form the first product, and the casting temperature is 1350°C;

[0032] (3) Heat treatment after casting: raise the temperature of the first product to 1000°...

Embodiment 3

[0035] A corrosion-resistant and wear-resistant high-manganese steel, which is composed of the following components by weight percentage: 1.2% carbon, 15% manganese, 0.6% silicon, 12.5% ​​chromium, 0.6% molybdenum, 0.5% nickel, 0.3% aluminum, and 0.12% copper , nitrogen 0.02%, rare earth elements 0.03%, phosphorus 0.03%, sulfur 0.03%, and the balance is iron.

[0036] The preparation method of the corrosion-resistant and wear-resistant high manganese steel comprises the following preparation steps:

[0037] (1) Smelting: Add industrial pure iron, ferrovanadium nitride, ferromanganese, industrial pure aluminum and other alloys and metal raw materials into the electric furnace, heat to melt them all, keep at 1750°C for 30 minutes, and the furnace temperature is 1500°C ;

[0038] (2) Casting: add it to the mold to form the first product, and the casting temperature is 1400°C;

[0039] (3) Heat treatment after casting: raise the temperature of the first product to 1100°C, heat p...

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Abstract

The invention discloses anti-corrosion and anti-wear high manganese steel and a preparation method thereof. The high manganese steel consists of the following components in percentage by weight: 1.0-1.2% of carbon, 14-15% of manganese, 0.48-0.6% of silicon, 10.5-12.5% of chromium, 0.5-0.6% of molybdenum, 0.3-0.5% of nickel, 0.1-0.3% of aluminum, 0.08-0.12% of copper, 0.01-0.02% of nitrogen, 0.01-0.03% of rare earth element, less than or equal to 0.03% of phosphorus, less than or equal to 0.03% of sulfur and the balance of iron. The preparation method comprises: (1) smelting: adding alloy and metal raw materials including technically pure iron, nitrided ferrovanadium, ferromanganese, technically pure aluminum and the like into an electric furnace, heating to melt all the alloy and metal raw materials, maintaining for 30 minutes at the temperature of 1,730-1,750DEG C, and discharging at the temperature of 1,460-1,500 DEG C; (2) casting; (3) heat treatment after casting; and (4) product acceptance. The anti-corrosion and anti-wear high manganese steel has the advantages of good anti-corrosion property, good anti-wear property, good impact toughness, long service life and short production period.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a corrosion-resistant and wear-resistant high manganese steel and a preparation method thereof. Background technique [0002] High manganese steel resists severe impact load due to its extremely strong toughness while resisting wear and tear. Its safety and reliability are unmatched by other materials. Under severe impact or contact stress, the surface of high manganese steel will harden rapidly, while the core still maintains extremely strong toughness. This feature of external hardness and internal toughness, which is both wear-resistant and impact-resistant, is extremely beneficial. And the heavier the impact on the surface, the more fully the surface hardening and the better the wear resistance. After the surface is worn, the subsurface is hardened again, so this performance advantage is widely used in important environments such as mining, metallurgy, military industry, build...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/58C22C33/06
Inventor 倪菲菲
Owner 江苏久华环保科技股份有限公司