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High-strength functional form filtration apparatus made of magnesium and its making process

A filter device and manufacturing process technology, applied in the field of magnesium high-strength functional filter device and its manufacturing process, can solve the problem of not finding special steel mold casting and continuous casting purification technology and equipment, and achieve superior combined structure and mutual Reasonable configuration, the effect of improving mechanical and physical properties

Inactive Publication Date: 2004-11-17
金毓林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, countries have not found a purification technology and equipment that can meet the needs of special steel mold casting and continuous casting production

Method used

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  • High-strength functional form filtration apparatus made of magnesium and its making process
  • High-strength functional form filtration apparatus made of magnesium and its making process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] The raw materials used in the following formula are magnesium carbonate, calcium carbonate and fused magnesia with a MgO content of 96% and sintered calcium oxide clinker. It is divided into three types according to the CaO content: 90%, 95%, and 99%, and ZrO 2 High-purity zirconia and TiO with a content of 99% 2 For high-purity titanium dioxide with a content of 98.5-99%, the added binder is a supersaturated solution of phosphate.

[0034] In the batching, the matrix raw material is fused magnesia, the reaction layer and the porous equal-diameter spherical filter medium are sintered calcium oxide clinker, and the method used each time is as follows:

Embodiment 1

[0036] The right casing, the reaction layer of the composite perforated plate, the raw material formula adopted by the calcium oxide slag retaining plate and the spherical filter medium are 80 parts by weight of sintered calcium oxide clinker containing 90% CaO, 20 parts by weight of calcium carbonate and an appropriate amount of zirconium dioxide and The titanium dioxide and the phosphate supersaturated solution binder are added in 4 to 6 parts by weight and kneaded together to form a mixture, which is formed by pressing, dried and sintered. The difference is that the outer layer of the right box and the other side of the composite porous plate use 100 parts of fused magnesia containing MgO96%, add 4 to 5 parts by weight of phosphate supersaturated solution for mixing, and manufacture it according to the above-mentioned production method. The matrix of the box and the composite porous plate.

[0037] The raw materials used as the left box used in the Shengjing steel chamber a...

Embodiment 2

[0043] The manufacturing method of the filter device is the same as that of Embodiment 1. The difference is that the raw materials used in the right box body, the reaction layer of the composite porous plate, the calcium oxide slag retaining plate, and the spherical filter medium are: 80 parts by weight of sintered calcium oxide clinker with a CaO content of 95%, and 20 parts by weight of calcium carbonate. Add appropriate amount of zirconium dioxide, titanium dioxide, and phosphate supersaturated solution binder to 4 to 6 parts by weight, and knead together to form a mixture; and the outer layer of the right box and the other side of the composite porous plate use raw materials and production methods constant.

[0044] The raw materials and production methods used for the left box used as the steel chamber remain unchanged. According to the requirements of various mixture formulas and production processes, a high-strength functional filter device is made to filter and purify...

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Abstract

The invention is a kind of magnesio high intensity functional filter device, which is box type structure. It is made up of compound left and right boxes, and the middle multiaperture mask. The right box inner cavity has a liquid steel inlet and steel channel of calcium oxide dredge blocking board. The multiaperture is made up of right compound multiaperture board, magnesio multiaperture board, the calcium oxide equal-radius sphere in it and upper magnesio multiaperture board. The left box inner cavity is clean steel room, on top of which there has an air outlet and magnesio dredge blocking board, there has a magnesio dredge blocking weir and liquid steel outlet. The process: the invention uses magnesium oxide as base material, uses calcium oxide, calcium carbonate, zirconium dioxide, titanium dioxide as functional materials. The box body and pieces are pressed and formed, assembled, dried, and baked in the mould. The merits are: the intensity is high, impact resisting, the functional material reacts with nonmetal in the liquid steel, thus 60%-90% impurities in the liquid steel.

Description

technical field [0001] This product is used in the production process of smelting special steel. It is a high-strength functional filter device that helps molten steel to remove harmful components such as S, P, Si, and Al, and improves the cleanliness of molten steel. Specifically, when the molten steel is poured, the harmful elements and non-metallic inclusions in the molten steel are firstly treated by physical and chemical methods by the filtering device, which provides a more economical and effective technical method for the production of high-purity metal materials. technical background [0002] At present, the trend of metal materials produced in the field of metallurgical manufacturing in the world is to develop towards high-purity and ultra-high-purity steel. All countries regard the research and development of clean steel as the development direction of metal materials. The metallurgical circles at home and abroad agree that it is not enough ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/119
Inventor 金毓林金姿金兰金伟健王帅
Owner 金毓林
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