CN102758065B - Barium-calcium-silicon molten steel secondary refining agent and preparation method thereof - Google Patents
Barium-calcium-silicon molten steel secondary refining agent and preparation method thereof Download PDFInfo
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- CN102758065B CN102758065B CN2012102049672A CN201210204967A CN102758065B CN 102758065 B CN102758065 B CN 102758065B CN 2012102049672 A CN2012102049672 A CN 2012102049672A CN 201210204967 A CN201210204967 A CN 201210204967A CN 102758065 B CN102758065 B CN 102758065B
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Abstract
The invention discloses a barium-calcium-silicon molten steel secondary refining agent and a preparation method thereof. The barium-calcium-silicon molten steel secondary refining agent comprises the following raw materials in percentage by weight: 20-25% of barium carbonate, 35-45% of calcium oxide, 15-20% of silicon dioxide, 5-8% of waste aluminum powder, 5-8% of magnesium oxide and 5-10% of attapulgite, wherein the total percentage of the raw materials is 100%. According to the invention, as the attapulgite is added to the raw materials, waste is turned into wealth, the adsorption performance of the attapulgite is sufficiently utilized, the barium-calcium-silicon molten steel secondary refining agent has good desulfurization and dephosphorization effects, and rephosphorization phenomenon is reduced.
Description
Technical field
The present invention relates to steelmaking technical field, be specifically related to a kind of barium calcium silicon steel water furnace external refining agent and preparation method thereof.
Background technology
Molten steel refining agent is used for the external refining liquid steel refining and carries out desulfurization, dephosphorization, removes the impurity in molten steel, improves the performance of steel.The refining agent kind is a lot.
Summary of the invention
The object of the present invention is to provide a kind of barium calcium silicon steel water furnace external refining agent and preparation method thereof, increased attapulgite in refining agent formula of the present invention, take full advantage of its absorption property, refining agent desulfurization, dephosphorization effect are good.
The present invention adopts following technical scheme to achieve these goals:
Barium calcium silicon steel water furnace external refining agent, the weight percent of constitutive material is: barium carbonate 20-25%, calcium oxide 35-45%, silica 1 5-20%, aluminium scrap powder 5-8%, magnesium oxide 5-8%, attapulgite 5-10%, each component sum is absolutely.
Barium calcium silicon steel water furnace external refining agent, the weight percent of constitutive material is: barium carbonate 22%, calcium oxide 40%, silica 1 8%, aluminium scrap powder 6%, magnesium oxide 6%, attapulgite 8%.
The preparation method of barium calcium silicon steel water furnace external refining agent comprises the following steps:
(1), according to the weight percent of described barium calcium silicon steel water furnace external refining agent, after good required each component raw material of weighing, put into respectively baking oven and dry, control temperature 150-200 ℃, storing time is 20～30min;
(2), above-claimed cpd baking is completed after, be put into the dry place cool to room temperature, and each raw material mixed, pulverizer stirs and pulverizes baking, and composition is mixed;
(3), the barium calcium silicon steel water furnace external refining agent that will mix packs with sealing bag, leaves dry place in standby.
Beneficial effect of the present invention:
The present invention, added attapulgite in raw material, turn waste into wealth, and takes full advantage of its absorption property, and refining agent desulfurization, dephosphorization effect are good, have reduced the rephosphorization phenomenon.
Embodiment
Embodiment 1:Barium calcium silicon steel water furnace external refining agent, the weight percent of constitutive material is: barium carbonate 22%, calcium oxide 40%, silica 1 8%, aluminium scrap powder 6%, magnesium oxide 6%, attapulgite 8%.
The preparation method of barium calcium silicon steel water furnace external refining agent comprises the following steps:
(1), according to the weight percent of described barium calcium silicon steel water furnace external refining agent, after good required each component raw material of weighing, put into respectively baking oven and dry, control temperature 150-200 ℃, storing time is 20～30min;
(2), above-claimed cpd baking is completed after, be put into the dry place cool to room temperature, and each raw material mixed, pulverizer stirs and pulverizes baking, and composition is mixed;
(3), the barium calcium silicon steel water furnace external refining agent that will mix packs with sealing bag, leaves dry place in standby.
, below in conjunction with the Preparation Example of this above-mentioned refining agent, specifically describe the using method of steel-making refining agent of the present invention:
Adopt the described refining agent of embodiment 1, addition method, divide a secondary to add routinely.The test molten steel is surrounded by No. 1-5, desulfurization, sulphur phosphorus effect such as following table:
No. 1: molten steel condition: S 0.035%, P 0.160%; Desulfurization degree 57%, dephosphorization rate 73%.
No. 2: molten steel condition: S 0.036%, P 0.170%; Desulfurization degree 62%, dephosphorization rate 71%.
No. 3: molten steel condition: S 0.038%, P 0.150%; Desulfurization degree 59%, dephosphorization rate 76%.
No. 4: molten steel condition: S 0.034%, P 0.190%; Desulfurization degree 56%, dephosphorization rate 74%.
No. 5: molten steel condition: S 0.035%, P 0.150%; Desulfurization degree 58%, dephosphorization rate 71%.
Illustrate that refining agent of the present invention has higher desulfurization, sulphur phosphorus rate, and good stability, can meet steel mill's technical requirements.
Claims (2)
1. barium calcium silicon steel water furnace external refining agent, the weight percent that it is characterized in that constitutive material is: barium carbonate 20-25%, calcium oxide 35-45%, silica 1 5-20%, aluminium scrap powder 5-8%, magnesium oxide 5-8%, attapulgite 5-10%, and each component sum is absolutely;
Its preparation method comprises the following steps:
(1), according to the weight percent of described barium calcium silicon steel water furnace external refining agent, after good required each component raw material of weighing, put into respectively baking oven and dry, control temperature 150-200 ℃, storing time is 20～30min;
(2), above-claimed cpd baking is completed after, be put into the dry place cool to room temperature, and each raw material mixed, pulverizer stirs and pulverizes baking, and composition is mixed;
(3), the barium calcium silicon steel water furnace external refining agent that will mix packs with sealing bag, leaves dry place in standby.
2. barium calcium silicon steel water furnace external refining agent according to claim 1, is characterized in that the weight percent of constitutive material is: barium carbonate 22%, calcium oxide 40%, silica 1 8%, aluminium scrap powder 6%, magnesium oxide 6%, attapulgite 8%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102049672A CN102758065B (en) | 2012-06-20 | 2012-06-20 | Barium-calcium-silicon molten steel secondary refining agent and preparation method thereof |
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| CN2012102049672A CN102758065B (en) | 2012-06-20 | 2012-06-20 | Barium-calcium-silicon molten steel secondary refining agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102758065A CN102758065A (en) | 2012-10-31 |
| CN102758065B true CN102758065B (en) | 2013-11-13 |
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| CN2012102049672A Active CN102758065B (en) | 2012-06-20 | 2012-06-20 | Barium-calcium-silicon molten steel secondary refining agent and preparation method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103146884B (en) * | 2013-02-04 | 2014-06-11 | 安徽省繁昌县皖南阀门铸造有限公司 | Magnesium aluminum silicon steel water boiler external refine agents and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301677A (en) * | 1999-12-29 | 2001-07-04 | 张梦里 | Artificial wallastonite and its producing method |
| CN101476019A (en) * | 2009-02-03 | 2009-07-08 | 陈丽萍 | Micro-aluminium silicon-barium-calcium-magnesium composite alloy |
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2012
- 2012-06-20 CN CN2012102049672A patent/CN102758065B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301677A (en) * | 1999-12-29 | 2001-07-04 | 张梦里 | Artificial wallastonite and its producing method |
| CN101476019A (en) * | 2009-02-03 | 2009-07-08 | 陈丽萍 | Micro-aluminium silicon-barium-calcium-magnesium composite alloy |
Non-Patent Citations (2)
| Title |
|---|
| 凹凸棒土在环境保护中的应用进展;罗平等;《江西科学》;20100831;第28卷(第4期);466-469，494 * |
| 罗平等.凹凸棒土在环境保护中的应用进展.《江西科学》.2010,第28卷(第4期),466-469，494. |
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Effective date of registration: 20210826 Address after: 474550 Yang Cheng Zhen Hou Ying Cun, Xixia County, Nanyang City, Henan Province Patentee after: XIXIA YAOHUI METALLURGICAL MATERIAL Co.,Ltd. Address before: 241100 Huaqiao Town, Wuhu County, Wuhu City, Anhui Province Patentee before: WUHU COUNTY TIANHAI REFRACTORY FURNACE CHARGE Co.,Ltd. |
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