CN104630419A - Si-Ca-Bi-Fe alloy for alloying refined steel - Google Patents
Si-Ca-Bi-Fe alloy for alloying refined steel Download PDFInfo
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- CN104630419A CN104630419A CN201510064492.5A CN201510064492A CN104630419A CN 104630419 A CN104630419 A CN 104630419A CN 201510064492 A CN201510064492 A CN 201510064492A CN 104630419 A CN104630419 A CN 104630419A
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Abstract
The invention discloses a Si-Ca-Bi-Fe alloy for alloying refined steel. The alloy comprises the following components in percentage by weight: 10-20% of Si, 30-35% of Ca, 18-45% of Bi and the balance of Fe. Since the Ca content is increased properly, the capability of deoxygenation and desulfuration is increased and deep deoxygenation and desulfuration can be realized, deoxygenation and desulfuration speed is increased, the time of deoxygenation and desulfuration of molten steel is shortened, the production efficiency is enhanced; in addition, Bi is added and the Si content is reduced; the Si-Ca-Bi-Fe alloy can be used for refining low-SI steel.
Description
Technical field
The present invention relates to technical field of iron alloy, particularly relate to a kind of silico-calcium bismuth iron alloy for refining steel Alloying Treatment.
Background technology
In the process of converter smelting low-silicon low-carbon steel, deoxidation and desulfurization process need be carried out to molten steel, make the mass percent of each Chemical Composition in molten steel reach requirement.Current employing aluminium manganese titanium, aluminium manganese calcium, aluminum steel etc. are as the material of deoxidation, although these have the function of deoxidation alloying, but because aluminum content is high, after oxygen in aluminium and molten steel reacts, all generate relatively large aluminium sesquioxide, and aluminium sesquioxide viscosity is larger, not easily floating from molten steel enters in slag, it is trapped in molten steel and impacts refining procedures, and the fusing point of aluminium is low, yield is low, careless slightly in stokehold process and operating process, be easy to cause and excessively make steel crystallization thick containing aluminium, the physicals declines such as intensity.Silicon is reductor basic in steel, but too high plasticity and the toughness that can reduce steel of silicone content.Wingdale form calcium is a kind of basic stock in steel smelting procedure, for the treatment of molten steel, and can deoxidation and desulfurization.The deoxidizing capacity of calcium is very strong, but calcium vapour pressure at steel-making temperature is very high, and the solubleness of calcium in molten steel is very little, therefore, too large with single calcium deoxidation loss.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of silico-calcium bismuth iron alloy for refining steel Alloying Treatment is provided, deoxidization desulfuration ability is strong, speed is fast, can degree of depth deoxidization desulfuration, shortens the deoxidation of molten steel desulfurization treatment time, improve production efficiency, add bismuth simultaneously, decrease silicone content, go for the refining treatment of low-silicon steel.
The present invention adopts following technical scheme to achieve these goals:
For a silico-calcium bismuth iron alloy for refining steel Alloying Treatment, the weight percentage of its component and each component is:
Preferably, the described silico-calcium bismuth iron alloy for refining steel Alloying Treatment, the weight percentage of its component and each component is:
Preferably, the described silico-calcium bismuth iron alloy for refining steel Alloying Treatment, the weight percentage of its component and each component is:
Preparation method of the present invention, remelting process is conveniently produced.
Compared with the prior art, beneficial effect of the present invention is as follows:
Silico-calcium bismuth iron alloy for refining steel Alloying Treatment of the present invention, suitably add calcium contents, thus improve deoxidization desulfuration ability, can degree of depth deoxidization desulfuration, accelerate deoxidization desulfuration speed, shorten the deoxidation of molten steel desulfurization treatment time, improve production efficiency, add bismuth simultaneously, decrease silicone content, go for the refining treatment of low-silicon steel.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but the present invention is not limited only to these embodiments, and under the prerequisite not departing from present inventive concept, any improvement done all drops within protection scope of the present invention.
Embodiment 1:
For a silico-calcium bismuth iron alloy for refining steel Alloying Treatment, the weight percentage of its component and each component is: silicon 10%; Calcium 35%; Bismuth 18%; Iron surplus.Preparation method of the present invention, remelting process is conveniently produced.
Embodiment 2:
For a silico-calcium bismuth iron alloy for refining steel Alloying Treatment, the weight percentage of its component and each component is: silicon 15%; Calcium 32%; Bismuth 28%; Iron surplus.Preparation method of the present invention, remelting process is conveniently produced.
Embodiment 3:
For a silico-calcium bismuth iron alloy for refining steel Alloying Treatment, the weight percentage of its component and each component is: silicon 20%; Calcium 30%; Bismuth 45%; Iron surplus.Preparation method of the present invention, remelting process is conveniently produced.
Claims (3)
1. for a silico-calcium bismuth iron alloy for refining steel Alloying Treatment, it is characterized in that: the weight percentage of its component and each component is:
2. the silico-calcium bismuth iron alloy for refining steel Alloying Treatment according to claim 1, is characterized in that: the weight percentage of its component and each component is:
3. the silico-calcium bismuth iron alloy for refining steel Alloying Treatment according to claim 1, is characterized in that: the weight percentage of its component and each component is:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064492.5A CN104630419A (en) | 2015-02-06 | 2015-02-06 | Si-Ca-Bi-Fe alloy for alloying refined steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064492.5A CN104630419A (en) | 2015-02-06 | 2015-02-06 | Si-Ca-Bi-Fe alloy for alloying refined steel |
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| Publication Number | Publication Date |
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| CN104630419A true CN104630419A (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510064492.5A Pending CN104630419A (en) | 2015-02-06 | 2015-02-06 | Si-Ca-Bi-Fe alloy for alloying refined steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113061689A (en) * | 2021-03-24 | 2021-07-02 | 宁夏科通新材料科技有限公司 | Method for preparing silicon-calcium-barium-aluminum alloy from ore raw material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389576A (en) * | 2002-05-30 | 2003-01-08 | 武进市武帆合金铝有限公司 | SiCaMn alloy |
| CN1995428A (en) * | 2006-08-15 | 2007-07-11 | 常州武帆合金有限公司 | Aluminium calcium ferro-silicon alloy |
| CN102330010A (en) * | 2010-11-16 | 2012-01-25 | 首钢贵阳特殊钢有限责任公司 | Bismuth cored wire |
-
2015
- 2015-02-06 CN CN201510064492.5A patent/CN104630419A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389576A (en) * | 2002-05-30 | 2003-01-08 | 武进市武帆合金铝有限公司 | SiCaMn alloy |
| CN1995428A (en) * | 2006-08-15 | 2007-07-11 | 常州武帆合金有限公司 | Aluminium calcium ferro-silicon alloy |
| CN102330010A (en) * | 2010-11-16 | 2012-01-25 | 首钢贵阳特殊钢有限责任公司 | Bismuth cored wire |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113061689A (en) * | 2021-03-24 | 2021-07-02 | 宁夏科通新材料科技有限公司 | Method for preparing silicon-calcium-barium-aluminum alloy from ore raw material |
| CN113061689B (en) * | 2021-03-24 | 2022-05-17 | 宁夏科通新材料科技有限公司 | Method for preparing silicon-calcium-barium-aluminum alloy from ore raw material |
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Application publication date: 20150520 |
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