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Preparation technology of high-hardness stainless steel

A preparation process, stainless steel technology, applied in the field of stainless steel, can solve the problems of low hardness of stainless steel, can not meet the special hardness requirements of products, etc.

Pending Publication Date: 2020-10-30
滨海县广源纺织机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a preparation process of high-hardness stainless steel, which has the advantages of high hardness, etc., and solves the problem that the hardness of stainless steel is not high and cannot meet the special hardness requirements of different customers for products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation process of high-hardness stainless steel, comprising the following steps:

[0026] 1) Mix 0.5 parts of carbon, 10 parts of chromium, 1.4 parts of manganese, 20 parts of copper, 1 part of silver, 1 part of silver, 20 parts of aluminum, 35 parts of iron, 14 parts of silicon and 6 parts The zinc raw materials are put into the smelting furnace together for smelting, and the argon gas is introduced when the temperature in the furnace reaches a certain temperature, so that the smelted molten steel is fully mixed with the argon gas. After the gas is fully mixed with the molten steel, impurities are precipitated and filtered to obtain pure molten steel;

[0027] 2) Pouring the pure molten steel obtained in step 1) to obtain a stainless steel slab, and annealing the stainless steel slab through an annealing furnace, the temperature in the annealing furnace is 700°C, the annealing time is controlled at 3 hours, and the annealing temperature is lower than 500°C Fina...

Embodiment 2

[0035] A preparation process of high-hardness stainless steel, comprising the following steps:

[0036] 1) Mix 0.85 parts of carbon, 13 parts of chromium, 1.5 parts of manganese, 25 parts of copper, 1.3 parts of silver, 1.3 parts of silver, 25 parts of aluminum, 37.5 parts of iron, 17 parts of silicon and 9 parts The zinc raw materials are put into the smelting furnace together for smelting, and the argon gas is introduced when the temperature in the furnace reaches a certain temperature, so that the smelted molten steel is fully mixed with the argon gas, and the time of argon gas feeding is controlled within 5 minutes, so that After the gas is fully mixed with the molten steel, impurities are precipitated and filtered to obtain pure molten steel;

[0037] 2) Pouring the pure molten steel obtained in step 1) to obtain a stainless steel slab, and annealing the stainless steel slab through an annealing furnace, the temperature in the annealing furnace is 800°C, the annealing tim...

Embodiment 3

[0045] A preparation process of high-hardness stainless steel, comprising the following steps:

[0046] 1) Mix 1.2 parts of carbon, 16 parts of chromium, 1.6 parts of manganese, 30 parts of copper, 1.6 parts of silver, 1.6 parts of silver, 30 parts of aluminum, 40 parts of iron, 20 parts of silicon and 12 parts The zinc raw materials are put into the smelting furnace together for smelting, and the argon gas is introduced when the temperature in the furnace reaches a certain temperature, so that the smelted molten steel is fully mixed with the argon gas. After the gas is fully mixed with the molten steel, impurities are precipitated and filtered to obtain pure molten steel;

[0047] 2) Pouring the pure molten steel obtained in step 1) to obtain a stainless steel slab, and annealing the stainless steel slab through an annealing furnace, the temperature in the annealing furnace is 900°C, the annealing time is controlled at 5 hours, and the annealing temperature is lower than 500°...

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Abstract

The invention relates to the technical field of stainless steel, and discloses a preparation technology of high-hardness stainless steel. The preparation technology comprises the following steps of (1) putting 0.5-1.2 parts of carbon, 10-16 parts of chromium, 1.4-1.6 parts of manganese, 20-30 parts of copper, 1-1.6 parts of silver, 1-1.6 parts of silver, 20-30 parts of aluminum, 35-40 parts of ferrum, 14-20 parts of silicon and 6-12 parts of zinc raw materials in a refining furnace together for smelting, when temperature in the furnace rises to a certain temperature, charging argon gas so thatsmelt molten steel and the argon gas are sufficiently mixed, controlling the charging time of the argon gas to be 4-6 minutes, after the argon gas and the molten steel are sufficiently mixed, separating out impurities, and performing filtration so as to obtain pure molten steel; and (2) performing casting on the pure molten steel obtained in the step (1) so as to obtain stainless steel billets, performing annealing on the stainless steel billets through an annealer, and controlling temperature in the annealer to be 700-900 DEG C and annealing time to be 3-5 hours. Through the preparation technology of the high-hardness stainless steel, the purpose of high hardness is realized, and requirements of a user for the hardness of the steel can be met.

Description

technical field [0001] The invention relates to the technical field of stainless steel, in particular to a preparation process of high-hardness stainless steel. Background technique [0002] Stainless steel is the abbreviation of stainless acid-resistant steel. The steel grades that are resistant to weak corrosive media such as air, steam and water or have stainless properties are called stainless steel, while those that are resistant to chemical corrosion media (chemical corrosion such as acid, alkali and salt) The steel type is called acid-resistant steel. Due to the difference in chemical composition between the two, their corrosion resistance is different. Ordinary stainless steel is generally not resistant to chemical medium corrosion, while acid-resistant steel is generally stainless. [0003] Stainless steel is often divided into martensitic steel, ferritic steel, austenitic steel, austenitic-ferritic (duplex) stainless steel and precipitation hardening stainless stee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D6/00C21D1/18C21D1/26C22C38/00C22C38/02C22C38/04C22C38/06C22C38/20C22C38/38C23G1/19C23G5/02C09D161/28C09D175/14C09D7/61
CPCC09D161/28C09D175/14C21D1/18C21D1/26C21D6/002C21D6/005C21D6/008C22C38/002C22C38/007C22C38/02C22C38/04C22C38/06C22C38/20C22C38/38C23G1/19C23G5/02C09D7/61C08L75/14C08K3/28C08L61/28
Inventor 江红旭
Owner 滨海县广源纺织机械有限公司
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