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Production method for non-magnetic ferro-manganese alloy powder

A kind of production method, technology of manganese alloy

Inactive Publication Date: 2017-09-01
梅州梅新粉末冶金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the advancement of science and technology, metal alloys for various electronic devices are now required to meet the characteristics of magnetic flux, high conductivity, small size, and large capacity. The effect of non-magnet manganese alloys in generator rotors is remarkable, but now iron The production of manganese alloys is mostly in the experimental stage or small-scale production stage. In order to meet the needs of social development, there is an urgent need for a production method that can stably produce non-magnet manganese alloys on a large scale

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for producing magnetite-free manganese alloy powder, comprising the steps of:

[0034] 1) Smelting: put scrap iron and steel, ferromanganese and slagging materials into an electric arc smelting furnace to smelt into molten alloy steel. After carbon blending, dephosphorization, and desulfurization, the mass percentage of molten alloy steel is: carbon 1.0%, Silicon 0.9%, manganese 15%, phosphorus 0.05%, sulfur 0.015%, the balance is iron, the temperature of the molten alloy steel is 1650 ℃, the amount of steel is 6 tons / time, and the electric ladle car will be equipped with a ladle of molten alloy steel transported to the atomizer;

[0035] 2) Atomization: Turn on the high-pressure water and atomization protection water in the atomization cylinder. The pressure of the high-pressure water is 10Mpa. The sliding nozzle of the electric ladle car makes the molten alloy steel flow into the tundish equipped with the sizing nozzle. The diameter of the sizing nozzle is 1...

Embodiment 2

[0040] A method for producing magnetite-free manganese alloy powder, comprising the steps of:

[0041] 1) Smelting: put scrap iron and steel, ferromanganese and slagging materials into an electric arc smelting furnace to smelt into molten alloy steel. After carbon blending, dephosphorization, and desulfurization, the mass percentage of molten alloy steel is: carbon 0.20%, Silicon 0.3%, manganese 25%, phosphorus 0.01%, sulfur 0.01%, the balance is iron, the temperature of the molten alloy steel is 1730 ℃, the amount of steel is 10 tons / time, and the electric ladle car will be equipped with a ladle of molten alloy steel transported to the atomizer;

[0042] 2) Atomization: Turn on the high-pressure water and atomization protection water in the atomization cylinder. The sliding nozzle of the electric ladle car allows molten alloy steel to flow into the tundish equipped with a sizing nozzle. The diameter of the sizing nozzle is 16mm. The molten alloy steel flows into the atomizin...

Embodiment 3

[0047] A method for producing magnetite-free manganese alloy powder, comprising the steps of:

[0048] 1) Smelting: put scrap iron and steel, ferromanganese and slagging materials into an electric arc smelting furnace to smelt into molten alloy steel. After carbon blending, dephosphorization, and desulfurization, the mass percentage of molten alloy steel is: carbon 0.15%, Silicon 0.5%, manganese 20%, phosphorus 0.03%, sulfur 0.009%, the balance is iron, the temperature of the molten alloy steel is 1750 ℃, the amount of steel is 8 tons / time, and the electric ladle car will be equipped with a ladle of molten alloy steel transported to the atomizer;

[0049] 2) Atomization: Turn on the high-pressure water and atomization protection water in the atomization cylinder, the pressure of the high-pressure water is 13Mpa, the water level of the atomization cylinder reaches 3 / 5 of the height, start the slurry pump, control the water level of the atomization cylinder to remain unchanged, ...

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Abstract

The invention relates to a production method of non-magnet manganese alloy powder, which includes smelting, atomization, dehydration, drying and screening, uses scrap iron and steel as the main raw material, can reduce costs on the basis of ensuring iron content, and is environmentally friendly , the use of water atomization to produce non-magnetic manganese alloy powder can improve the powder making efficiency and ensure that the powder is easy to be pressed, and the chemical composition of the particles obtained by the non-magnetic manganese alloy powder produced by the water atomization method is uniform, the macro segregation is eliminated, and the composition The material distribution is relatively uniform, and it has a fine-grained structure, and the prepared material has good toughness.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a method for producing magnetite-free manganese alloy powder. Background technique [0002] Powder metallurgy is a new process and technology for the production of metal powder and the production of various parts and materials using metal powder (or a mixture of metal powder and non-metal) as raw material, through pressing, high-temperature sintering and other processes. The atomization method is to use the kinetic energy of high-pressure water flow to break the molten metal flow into fine droplets, and then solidify into solid particles at a faster cooling rate to obtain metal powder. With the advancement of science and technology, metal alloys for various electronic devices are now required to meet the characteristics of magnetic flux, high conductivity, small size, and large capacity. The effect of non-magnet manganese alloys in generator rotors is remarkable, but no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/08C22C33/04C22C38/04C22C38/02
CPCB22F9/082B22F2009/0828C22C33/04C22C38/02C22C38/04
Inventor 郑杨林
Owner 梅州梅新粉末冶金有限公司
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