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Special nucleating agent for silicon-barium cast iron and manufacturing equipment thereof

An inoculant and cast iron technology, which is used in foundry equipment, equipment for transporting molds, equipment for feeding molten metal into molds, etc. good question

Active Publication Date: 2021-11-30
镇江东丰特殊合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]General inoculants have poor stability and are prone to whitening tendency, and their preparation process is relatively low in automation, and their production efficiency is not good

Method used

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  • Special nucleating agent for silicon-barium cast iron and manufacturing equipment thereof
  • Special nucleating agent for silicon-barium cast iron and manufacturing equipment thereof
  • Special nucleating agent for silicon-barium cast iron and manufacturing equipment thereof

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Experimental program
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Effect test

Embodiment 1

[0040]Casting is an industry with high-temperature operations. Casting cast iron is a complex process, especially in the process of molten iron smelting, inoculation treatment of molten iron, and pouring of molten iron. Various process controls reach castings with different properties, and the resulting costs are also different. . The traditional instantaneous inoculation process is to instantaneously inoculate the poured molten iron with materials such as 75# ferrosilicon inoculant broken into small particles, or rare earth calcium barium inoculant. Copper and tin are commonly used metal raw materials for casting cast iron materials. Copper and tin elements play an important role in cast iron. They are generally added during smelting or when molten iron is poured into the pouring ladle, because copper and tin metals The material is generally supplied in plate shape, which is relatively tough and soft, and copper and tin metals have low melting points and relatively low hardne...

Embodiment 2

[0050] Casting is an industry with high-temperature operations. Casting cast iron is a complex process, especially in the process of molten iron smelting, inoculation treatment of molten iron, and pouring of molten iron. Various process controls reach castings with different properties, and the resulting costs are also different. . The traditional instantaneous inoculation process is to instantaneously inoculate the poured molten iron with materials such as 75# ferrosilicon inoculant broken into small particles, or rare earth calcium barium inoculant. Copper and tin are commonly used metal raw materials for casting cast iron materials. Copper and tin elements play an important role in cast iron. They are generally added during smelting or when molten iron is poured into the pouring ladle, because copper and tin metals The material is generally supplied in plate shape, which is relatively tough and soft, and copper and tin metals have low melting points and relatively low hardn...

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PUM

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Abstract

The invention relates to the technical field of nucleating agent production, in particular to a special nucleating agent for silicon-barium cast iron and manufacturing equipment thereof. The special nucleating agent for the silicon-barium cast iron comprises the following raw materials: 10 percent to 30 percent of Si, 7 percent to 10 percent of Nd, 5 percent to 8 percent of Cu, 1 percent to 3 percent of Al, 0.5 percent to 2 percent of Ba, 1 percent to 3 percent of rare earth, 10 percent to 20 percent of ferroferric oxide, 3 percent to 10 percent of Cr, 0.1 percent to 0.5 percent of V, 0.1 percent to 0.5 percent of Mn, 0.1 percent to 0.5 percent of Sc and 0.5 percent to 3 percent of Ti. The invention further provides manufacturing equipment of the special nucleating agent for the silicon-barium cast iron. The manufacturing equipment comprises a pretreatment part, a smelting part, a casting part, a cooling bin, a conveying part, cooling parts, a smashing part and a stirring part, wherein the stirring part is arranged at the top of the pretreatment part; the smelting part is arranged at the rear end of the pretreatment part; the casting part is arranged at the bottom of the smelting part; the cooling bin is arranged at the bottom of the casting part; the conveying part is arranged in the cooling bin; the smashing part is arranged at the rear end of the conveying part; and the cooling parts are arranged on the two sides of the conveying part. The problems that a common nucleating agent is poor in stability and prone to chilling tendency, the automation degree of the preparation process of the nucleating agent is low, and the production efficiency is poor are solved.

Description

technical field [0001] The invention relates to the technical field of inoculant production, in particular to a special inoculant for silicon-barium cast iron and production equipment thereof. Background technique [0002] The Chinese invention patent with publication number CN104878276A discloses a cast iron inoculant. The production of the cast iron inoculant includes the following steps: first, pure copper, pure tin and pure antimony metals are added in proportion to the intermediate frequency electric furnace for smelting; then, the smelted copper-tin alloy is processed into granules, and the granulated copper-tin Alloys are spherical particles, cylindrical particles or shaving particles. The cast iron inoculant smelts copper and tin together in proportion, then pours and cools them into small balls, or makes copper and tin into wires and then processes them into small cylinders, so that the cast iron inoculant can form crystal nuclei and fully refine them. The role of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C1/08C22C33/08C22C30/02B22D47/00B22D35/04B22D27/04B22F9/04B01F7/18
CPCC21C1/08C22C33/08C22C30/02B22D47/00B22D35/04B22D27/04B22D33/005B22D31/002B22F9/04Y02P10/20
Inventor 凌云
Owner 镇江东丰特殊合金有限公司