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Low-carbon ferrochromium powder

A technology of micro-carbon ferrochrome powder and chromium powder, which is applied in the field of micro-carbon ferrochrome powder, can solve the problems of long production cycle, high cost, and many production links, achieve good economic value and use value, and the ratio of ingredients is reliable and reasonable , less pollution and impurities

Inactive Publication Date: 2015-08-05
南通市金易焊接材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the smelting methods of micro-carbon ferrochromium mainly include electrosilicothermal method and heat exchange method, etc. These methods involve many production links, and the pollution to the environment is relatively serious, and the production cycle is long, the efficiency is low, and the impurity content of the finished product Many of them fail to meet the requirements, and the cost is relatively high. Due to the restrictions of national industrial policies, many related enterprises cannot achieve sustainable development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Micro-carbon ferrochrome powder, the percentage by weight of each composition in this micro-carbon ferrochrome powder is:

[0022] Chromium powder 60%;

[0023] Toner 0.03%;

[0024] Silicon fume 0.85%;

[0025] Phosphorus powder 0.015%;

[0026] Sulfur powder 0.015%;

[0027] The rest is iron powder.

[0028] Among them, the particle diameter of chromium powder is 80 mesh; the particle diameter of carbon powder is 90 mesh; the particle diameter of silicon powder is 130 mesh; the particle diameter of phosphorus powder is 300 mesh; the particle diameter of sulfur powder is 310 mesh; The particle size is 230 mesh.

Embodiment 2

[0030] Micro-carbon ferrochrome powder, the percentage by weight of each composition in this micro-carbon ferrochrome powder is:

[0031] Chromium powder 75%;

[0032] Toner 0.042%;

[0033] Silicon fume 1.1%;

[0034] Phosphorus powder 0.022%;

[0035] Sulfur powder 0.02%;

[0036] The rest is iron powder.

[0037] Among them, the particle diameter of chromium powder is 85 mesh; the particle diameter of carbon powder is 85 mesh; the particle diameter of silicon powder is 125 mesh; the particle diameter of phosphorus powder is 300 mesh; the particle diameter of sulfur powder is 300 mesh; The particle size is 250 mesh.

Embodiment 3

[0039] Micro-carbon ferrochrome powder, the percentage by weight of each composition in this micro-carbon ferrochrome powder is:

[0040] Chromium powder 60-80%;

[0041] Toner 0.03-0.045%;

[0042] Silicon fume 0.85-1.28%;

[0043] Phosphorus powder 0.015-0.032%;

[0044] Sulfur powder 0.015-0.028%;

[0045] The rest is iron powder.

[0046] Among them, the particle diameter of chromium powder is 90 mesh; the particle diameter of carbon powder is 80 mesh; the particle diameter of silicon powder is 120 mesh; the particle diameter of phosphorus powder is 280 mesh; the particle diameter of sulfur powder is 280 mesh; The particle size is 250 mesh.

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PUM

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Abstract

The invention provides a low-carbon ferrochromium powder, which comprises the following components in percentage by weight: 60-80% of chromium powder, 0.03-0.045% of carbon powder, 0.85-1.28% of silicon powder, 0.015-0.032% of phosphorus powder, 0.015-0.028% of sulfur powder and the balance of iron powder. The low-carbon ferrochromium powder has the benefits as follows: the low-carbon ferrochromium powder is reliable and reasonable in component proportion and high in utilization ratio in the smelting process, generates few pollutants and impurities, has a better economic value and a better use value, and meets the requirements of sustainable development of environmental protection.

Description

technical field [0001] The invention relates to a micro-carbon ferrochrome powder. Background technique [0002] Micro-carbon ferrochromium is mainly used to produce stainless steel, acid-resistant steel and heat-resistant steel, and the lower the carbon content, the higher the actual economic value. At present, the smelting methods of micro-carbon ferrochromium mainly include electrosilicothermal method and heat exchange method, etc. These methods involve many production links, and the pollution to the environment is relatively serious, and the production cycle is long, the efficiency is low, and the impurity content of the finished product Many of them fail to meet the requirements, and the cost is relatively high. Due to the restrictions of national industrial policies, many related enterprises cannot achieve sustainable development. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a micro-carbon ferrochrome p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00C22C27/06
Inventor 蔡德丰蔡卫红
Owner 南通市金易焊接材料有限公司
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