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Smelting composition for improving purity of cast iron

A composition and purity technology, applied in the field of ferrous metal manufacturing, can solve the problems of poor product quality, low purity, and complicated operation, and achieve the effects of simple proportioning, reduced energy consumption, and increased profit margins

Inactive Publication Date: 2018-12-07
尤洪习
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although new materials such as aluminum, magnesium alloy, and carbon fiber are increasingly being used in various industries, traditional cast iron is still irreplaceable, such as components with high strength and rigidity requirements.
The traditional cast iron smelting process is complicated to operate and takes a long time. The production process will cause huge energy consumption, and the quality of the products obtained by smelting is not too hard and the purity is not high, which is not conducive to the application in high-tech fields that require high materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The smelting method comprises the steps of:

[0012] After preheating the crucible, add 100 parts of pig iron ore, raise the temperature to 500 ° C, and pass in protective gas; add 10 parts of carburizer, 5 parts of zinc chloride, 5 parts of carbon tetrachloride, 10 parts of silicon manganese alloy, silicon barium 8 parts of inoculant, 5 parts of calcium chloride, 10 parts of high carbon steel scrap, FeSiMg 5 RE 5 Mix 5 parts of vermicular agent to obtain the mixture, preheat it, raise the temperature until the pig iron ore is completely melted, add the above mixture, stir for 5 minutes after adding until the mixture is uniform; skim off the scum on the surface of the molten iron, lower the furnace temperature to 550°C Add refining agent to refine until the surface is bright.

[0013] The quality of the cast iron obtained by smelting can reach the standard after testing, indicating that although the time is shortened and the energy consumption is reduced, the product ...

Embodiment 2

[0015] The melting method comprises the steps of:

[0016] After preheating the crucible, add 100 parts of pig iron ore, raise the temperature to 550 ° C, and pass in protective gas; add 10 parts of carburizer, 6 parts of zinc chloride, 5 parts of carbon tetrachloride, 12 parts of silicon manganese alloy, silicon barium 8 parts of inoculant, 5 parts of calcium chloride, 10 parts of high carbon steel scrap, FeSiMg 5 RE 5 Mix 3 parts of vermicular agent to obtain the mixture, preheat it, raise the temperature until the pig iron ore is completely melted, add the above mixture, stir for 4 minutes after adding until it is evenly stirred; skim off the scum on the surface of the molten iron, lower the furnace temperature to 550°C, Add refining agent to refine until the surface is bright.

[0017] The quality of the cast iron obtained by smelting can reach the standard after testing, indicating that although the time is shortened and the energy consumption is reduced, the product qu...

Embodiment 3

[0019] The melting method comprises the steps of:

[0020] After preheating the crucible, add 100 parts of pig iron ore, raise the temperature to 550 ° C, and pass in protective gas; add 12 parts of carburizer, 6 parts of zinc chloride, 5 parts of carbon tetrachloride, 12 parts of silicon manganese alloy, silicon barium 8 parts of inoculant, 5 parts of calcium chloride, 10 parts of high carbon steel scrap, FeSiMg 5 RE 5 Mix 5 parts of vermicular agent to get the mixture, preheat it, raise the temperature until the pig iron ore is completely melted, add the above mixture, stir for 6 minutes after adding until evenly stirred; skim off the scum on the surface of molten iron, lower the furnace temperature to 550°C, Add refining agent to refine until the surface is bright.

[0021] The product quality that present embodiment obtains is consistent with embodiment 1.

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PUM

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Abstract

The invention discloses a smelting composition for improving the purity of cast iron. The smelting composition is prepared from following components: carburant, zinc chloride, carbon tetrachloride, silicomanganese, a silicon-barium nucleating agent, calcium chloride, high-carbon waste steel and FeSiMg5RE5 vermiculizer. The smelting agent is simple in matching, smelting slag can be rapidly separated out after the mixed smelting agent in special matching is adopted for smelting products, the smelting time is greatly shortened, and as the smelting time is shortened, the energy consumption is naturally reduced. The produced products have high quality, the rate of profits can be increased, and applicable fields are greatly widened.

Description

technical field [0001] The invention relates to a smelting composition for improving the purity of cast iron, which belongs to the field of ferrous metal manufacturing. Background technique [0002] Cast iron is an alloy composed of iron, carbon and silicon. Although new materials such as aluminum, magnesium alloy, and carbon fiber are increasingly being used in various industries, traditional cast iron is still irreplaceable, such as parts that require high strength and rigidity. The traditional cast iron smelting process is complicated to operate and takes a long time. The production process will cause a huge consumption of energy, and the quality of the products obtained by smelting is not too hard and the purity is not high, which is not conducive to application in high-tech fields that require high materials. Contents of the invention [0003] In view of the above problems in the prior art, the object of the present invention is to provide a smelting composition for ...

Claims

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Application Information

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IPC IPC(8): C21C1/08
Inventor 尤洪习
Owner 尤洪习
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