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Casting powder for casting round ingots and manufacture method of casting powder

A production method and technology for mold slag, applied in the direction of improving process efficiency, etc., can solve the problems of complex process, high cost, strict requirements on material selection, ingredients, physical and chemical properties, etc., and achieve the effect of improving surface quality and feeding quality.

Inactive Publication Date: 2012-12-12
马鞍山科润冶金材料有限公司
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the mold slag for casting ingots does not have a good thermal insulation effect on the head of the ingot, and heating agents and heat insulating agents need to be added. The cost is high and the process is complicated. A kind of high-quality mold slag for casting garden ingot and its manufacturing method

Method used

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Experimental program
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Effect test

Embodiment 1

[0010] Embodiment 1: Mold slag for casting garden ingots, the ratio of its composition raw materials is: power plant flue ash 36%, blast furnace water slag powder 20%, expanded perlite powder 16%, fluorite powder 9%, soda ash 6%, expansion Graphite powder 10% and flake graphite powder 3%.

[0011] The method for making mold slag for casting ingots includes the following steps: weighing each raw material according to the weight ratio of the constituent raw materials, stirring and mixing the ingredients, controlling the batching error <0.1%, the temperature of the material at 105°C-110°C, and the moisture <0.7%, Grinding, particle size ≤ 0.106mm, packaged after passing the inspection.

[0012] The quality detection data of the mold slag of casting garden ingot of the present invention is as table:

[0013] Test items standard value Test results SiO 2 % 16.0-21.0 19.1 Al 2 o 3 % 40.0-50.0 42.3 Al% ≥22.0 23.4 C% ≤6.0 5.5 F% 0.0-...

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Abstract

The invention discloses a casting powder for casting round ingots and a manufacture method of the casting powder. The casting powder comprises the following raw materials: 36% of power-plant flue dust, 20% of granulated blast-furnace slag, 16% of expanded perlite powders, 9% of fluorite powders, 6% of soda ashes, 10% of expanded graphite powder, and 3% of crystalline graphite powders; and the manufacture method of the mould powder comprises the following steps: weighing all raw materials according to the weight ratio of the raw materials, stirring and mixing the raw materials, controlling the dosing error to be less than 0.1%, controlling the material temperature at 105-110 DEG C, controlling the moisture to be less than 0.7%, grinding the raw materials until the particle size is less than and equal to 0.106mm, and packaging the obtained materials after passing the inspection. A thermal insulation material with low carbon content, high expansion times, and ultralow carbon content of the expansion product, is added to the mould powder disclosed by the invention, so that both the surface quality of ingots and the feeding quality of ingot heads are improved without adding a heating agent and a thermal insulating agent.

Description

technical field [0001] The invention relates to mold slag for casting ingots and a manufacturing method thereof, belonging to the technical field of casting. Background technique [0002] At present, the mold slag for casting ingots does not have a good thermal insulation effect on the head of the ingot, and heating agents and heat insulating agents need to be added, which is costly and complicated. The material selection, ingredients, and physical and chemical properties of the mold slag for the ingot are demanding A high-quality mold flux for casting garden ingots and a manufacturing method thereof. Contents of the invention [0003] The object of the present invention is to provide a mold flux for casting a garden ingot and a manufacturing method thereof. The mold flux of the present invention is added with insulation material with low carbon content, high expansion multiple, and extremely low carbon content in the expansion product, without adding heating agen...

Claims

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Application Information

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IPC IPC(8): B22D7/00B22D11/111C21C7/076
CPCY02P10/20
Inventor 鲁方志
Owner 马鞍山科润冶金材料有限公司
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