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Vermicular graphite cast iron cooker and production method thereof

A technology of vermicular graphite cast iron and its production method, which is applied in the field of metal casting, can solve problems such as low strength, low toughness, and poor plasticity, and achieve the effect of high strength and good thermal conductivity

Inactive Publication Date: 2020-04-14
HEBEI SANXIA KITCHENWARE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, gray cast iron has the characteristics of low strength, low toughness, and poor plasticity at the same time, so cookers made of gray cast iron are prone to damage such as breaking, bumping, and crushing.

Method used

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  • Vermicular graphite cast iron cooker and production method thereof
  • Vermicular graphite cast iron cooker and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The production of embodiment 1 vermicular graphite cast iron pan support

[0063] (1) Melting step:

[0064] Add 200kg of pig iron with grade Q10 to the bottom of the electric furnace, add 24kg of recarburizer on it, and then add 600kg of carbon steel scrap and recycled materials one after another. Increase the power of the electric furnace to speed up the melting. For the undissolved carburant, after the carburant is completely dissolved, add 10kg of silicon carbide. After the silicon carbide is dissolved, add 2.5kg of slag accumulator to cover the molten iron, and add the remaining 400kg of slag accumulator to the molten iron. For pig iron of the Q10 brand, the pig iron block is completely melted and then the slag is removed for slagging and refining.

[0065] Add 2.5kg of slagging agent to the molten iron for the first slagging and first refining. The operation takes about 2-3 minutes. After the first slagging and first refining, carry out slag removal.

[0066] Co...

Embodiment 2

[0077] The production of embodiment 2 vermicular graphite cast iron hob

[0078] (1) Melting step:

[0079] Add 130kg of pig iron with grade Q10 to the bottom of the electric furnace, add 16kg of carburizer on top of it, and then add 400kg of carbon steel scrap and 300kg of recycled material one after another. Increase the power of the electric furnace to speed up melting. Observe whether there is any undissolved recarburizer. After the recarburizer is completely dissolved, add 10kg of silicon carbide. After the silicon carbide is dissolved, add 2.5kg of slag accumulator to cover the molten iron, and add successively to the slag accumulator covering the molten iron. The remaining 270kg of pig iron of the Q10 brand, after the pig iron block is completely melted, the slag is removed for slagging and refining.

[0080] Add 2.5kg of slagging agent to the molten iron for the first slagging and first refining. The operation takes about 2-3 minutes. After the first slagging and firs...

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Abstract

The invention discloses a vermicular graphite cast iron cooker and a production method thereof. The vermicular graphite cast iron cooker is prepared from the following components of, in percentage byweight, 3.20% - 3.90% of carbon, 2.20% - 3.10% of silicon, less than or equal to 0.025% of sulfur, less than or equal to 0.10% of phosphorus, less than or equal to 1.00% of manganese, 0.007% - 0.025%of magnesium, 0.001% - 0.019% of rare earth and the balance iron. The vermicular graphite cast iron cooker produced by the production method has a variety of advantages of being light, thin, high in strength, good in heat conduction performance, resistant to thermal corrosion, resistant to sharp instrument scraping and the like.

Description

technical field [0001] The invention relates to the technical field of metal casting, in particular to a vermicular graphite cast iron cooker and a production method thereof. Background technique [0002] Gray cast iron has the characteristics of low melting point, good fluidity of molten iron, small shrinkage, easy cutting and processing, low cost, and good process performance. Manufactured in cast iron. However, gray cast iron has the characteristics of low strength, low toughness, and poor plasticity at the same time, so cookers made of gray cast iron are prone to damage such as being broken, bumped, and crushed. Contents of the invention [0003] The invention provides a vermicular graphite cast iron cooker and a production method thereof which solve the above problems. The vermicular graphite cast iron cooker has the characteristics of lightness, thinness and high strength, and its thermal conductivity is equivalent to that of gray cast iron cooker. [0004] The pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C33/10C21C1/08A47J36/02
CPCA47J36/02C21C1/08C22C33/10C22C37/10Y02P10/20
Inventor 韩光辉李志坤王清河未东峰祝坤峰张文浩程亚红边建学
Owner HEBEI SANXIA KITCHENWARE TECH CO LTD
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