CN1226426C - Steel-core alminium-system compound deoxidant and production process thereof - Google Patents
Steel-core alminium-system compound deoxidant and production process thereof Download PDFInfo
- Publication number
- CN1226426C CN1226426C CNB200310110111XA CN200310110111A CN1226426C CN 1226426 C CN1226426 C CN 1226426C CN B200310110111X A CNB200310110111X A CN B200310110111XA CN 200310110111 A CN200310110111 A CN 200310110111A CN 1226426 C CN1226426 C CN 1226426C
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- CN
- China
- Prior art keywords
- steel
- alloy
- aluminium
- base
- deoxidation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 150000001875 compounds Chemical class 0.000 title description 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 239000004411 aluminium Substances 0.000 claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- 238000005868 electrolysis reaction Methods 0.000 claims description 9
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 8
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 5
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 4
- 229910008455 Si—Ca Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009628 steelmaking Methods 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000011084 recovery Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The present invention relates to a deoxidation technique process of steel making in the field of metallurgy, particularly to a new high-efficiency steel core aluminum series composite deoxidation agent and a production process thereof. The present invention has the technical scheme that the composite deoxidation agent is prepared from the components of the proportion by weight: 35 to 65% of electrolytic pure aluminium (Al>99.5), and 35 to 65% of low carbon steel basal alloy (Fe>= 97, 0.2 to 1 of Mn, 0.1 to 1 of Ba, 0.15 to 1.00 of Si), and the specific gravity of a finished product is from 3.2 to 5.0 g/CM<3>. Because the technical scheme is adopted, the present invention has the advantages of few impurities, good deoxidation effect, high yield and high deoxidation efficiency in the process of steel making.
Description
Technical field:
The present invention relates to the deoxidation in steel making technological process in the field of metallurgy, relating in particular to a kind of novel efficient steel core aluminium is composite deoxidant and production technique thereof.
Background technology:
Aluminium is a kind of many metal strong than element reductions such as Si, Mn, and in field of iron and steel smelting, it is used as a kind of strong reductor and uses usually.
The proportion of fine aluminium is 2.7g/cm under normal conditions
3About and under 1500--1600 ℃ of condition molten steel (proportion is 7.0g/cm
3About) compare, proportion differs and reaches 2.2 times more than, and bigger great disparity has caused fine aluminium piece reductor after directly adding molten steel, and not only effectively recovery rate does not reach 50%, produces a large amount of oxide compound (AL simultaneously
2O
3Class) enters molten steel, cause molten steel to produce a large amount of being mingled with, seriously influenced the quality of finished steel.
The patent No. is that patent employing fine aluminium (Al＞97%) and the iron of ZL02229604.2 is material, and Al is as reductor, and iron is only as the material of making to increase proportion.
Contrast the composition (seeing the following form) of iron and soft steel:
Table 1:
| Element | C | Si | Mn | P | S |
| Content % | 2.5-4.0 | ＜1.25 | - | ＜0.4 | ＜0.07 |
Table 2:
| Element | C | Si | Mn | P | S |
| Content % | 0.01~0.09 | 0.14~0.28 | 0.25~0.5 | ≤0.02 | ≤0.02 |
Conventionally, make steel very strictly for the requirement of going into furnace charge and auxiliary material, especially oxious component P and S can obviously find out from above-mentioned two tables: the content of P and S P and S content several times in the steel the iron; If than heavy material, the effect that increases proportion is to have played with the iron conduct, but caused serious pollution but for the composition of molten steel.In addition, for the ultra low-carbon steel class, carrying out deoxidation with this reductor, also can cause carburetting, cause that carbon exceeds standard in the steel, is unscientific so adopt iron to increase material as proportion.
Summary of the invention:
The objective of the invention is to design that a kind of impurity is few in steelmaking process, deoxidation effect good, recovery rate and the higher steel core aluminium of deoxidation efficient is composite deoxidant and production technique thereof.
At this, the technical scheme that the present invention takes is as follows:
Adopt electrolysis fine aluminium (Al＞99.5%) and be that the alloy of base is that raw material is made with soft steel, finished product proportion is at 3.2-5.0g/em
3, wherein wt per-cent is: electrolysis fine aluminium (Al＞99.5%) 35---65%, low-carbon (LC) base steel alloy (Fe 〉=97, Mn:0.2-1, Ba:0.1-1, Si:0.15～1.00) 35---65%;
Its production technique is as follows:
Employing is that the alloy of base (passes through fusing in advance with soft steel with soft steel, to wherein adding an amount of Si-Ca, Si-Al-Ba class alloy, cast steel bar or rod iron then then), electrolysis fine aluminium (Al＞99.5%) is melted and constant temperature 900---1000 ℃, go out aluminium then to forehearth, constant temperature; Aluminium water is watered to the trapezoidal mould of conveyor type with the constant volume container, and add low-carbon (LC) base steel alloy according to the above ratio, cooling and mould unloading gets final product.
Because the present invention has taked technique scheme, employing is that the alloy of base increases material as proportion with soft steel, with the patent No. is that the patent of ZL 02229604.2 is compared, and the patent No. is that ZL02229604.2 adopts abrasive grit or iron bar class to make proportion to increase material, and its purpose only is in order to increase proportion; And the present invention to adopt with soft steel be that the alloy of base is (with soft steel in advance through fusing, then to wherein adding an amount of Si-Ca, Si-Al-Ba class alloy, cast steel bar or rod iron then), its main effect has the two parts: the first is in order to increase proportion, another one mainly acts on: this class base steel alloy itself is exactly a kind of strong reductor, so that the steel core aluminium of unit weight is the deoxidizing capacity of composite deoxidant is high than fine aluminium and pure aluminium iron compound deoxidant.
Therefore, steel core aluminium of the present invention is that the composite deoxidant employing is that basic alloy increases material as proportion with soft steel.
The following specification product of the conventional production of the present invention:
Getting identical crude steel sample is that simultaneous test has been carried out in the composite oxygen agent to fine aluminium piece reductor, pure aluminium iron compound deoxidant, steel core aluminium.
1, the index of several prods:
1. test-results:
By controlled trial, obviously as can be seen, steel core aluminium be the composite deoxidant product all having increased significantly aspect the deoxidation effect and the rate of recovery two than the above two, consider that from ton steel cost reduction has to a certain degree been arranged.
Embodiment:
The technical scheme that the present invention takes is as follows:
Adopt electrolysis fine aluminium (Al＞99.5%) and be that the alloy of base is a raw material with soft steel, finished product proportion is at 3.2-5.0g/cm
3, wherein wt per-cent is: electrolysis fine aluminium (Al＞99.5%) 35---65%, low-carbon (LC) base steel alloy (Fe 〉=97, Mn:0.2-1, Ba:0.1-1, Si:0.15～1.00) 35---65%;
Its production technique is as follows:
Employing is that the alloy of base (passes through fusing in advance with soft steel with soft steel, to wherein adding an amount of Si-Ca, Si-Al-Ba class alloy, cast steel bar or rod iron then then), electrolysis fine aluminium (Al＞99.5%) is melted and constant temperature 900---1000 ℃, go out aluminium then to forehearth, constant temperature; Aluminium water is watered to the trapezoidal mould of conveyor type with the constant volume container, and add low-carbon (LC) base steel alloy according to the above ratio, cooling and mould unloading gets final product.
Claims (2)
1, a kind of steel core aluminium is composite deoxidant, and it is characterized in that adopting purity is that the alloy of base is that raw material is made greater than 99.5% electrolysis fine aluminium with soft steel, and finished product proportion is at 3.2-5.0g/cm
3, wherein wt per-cent is: purity is greater than 99.5% electrolysis fine aluminium 35---65%; Low-carbon (LC) base steel alloy 35---65%; Described low-carbon (LC) base steel alloy, wherein each component concentration is respectively: Fe 〉=97, Mn:0.2-1, Ba:0.1-1, Si:0.15-1.00.
2, the described steel core aluminium of claim 1 production technique that is composite deoxidant, its production technique is as follows: employing is the alloy of base with soft steel, soft steel is passed through in advance melt, then to wherein adding an amount of Si-Ca, Si-Al-Ba class alloy, cast steel bar or rod iron then, described purity is melted and constant temperature 900---1000 ℃ greater than 99.5% electrolysis fine aluminium, go out aluminium then to forehearth, constant temperature; Aluminium water is watered to the trapezoidal mould of conveyor type with the constant volume container, and add low-carbon (LC) base steel alloy according to the above ratio, cooling and mould unloading gets final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310110111XA CN1226426C (en) | 2003-10-10 | 2003-10-10 | Steel-core alminium-system compound deoxidant and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310110111XA CN1226426C (en) | 2003-10-10 | 2003-10-10 | Steel-core alminium-system compound deoxidant and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1528920A CN1528920A (en) | 2004-09-15 |
| CN1226426C true CN1226426C (en) | 2005-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200310110111XA Expired - Lifetime CN1226426C (en) | 2003-10-10 | 2003-10-10 | Steel-core alminium-system compound deoxidant and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1226426C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513602A (en) * | 2016-11-16 | 2017-03-22 | 天津炜润达新材料科技有限公司 | Continuous production line technology process of steel wire aluminum |
-
2003
- 2003-10-10 CN CNB200310110111XA patent/CN1226426C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1528920A (en) | 2004-09-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HENAN LONGCHENG GROUP CO.,LTD. Free format text: FORMER NAME: XIXIA LONGCHENG SMELTING MATERIAL GROUP CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Henan province Xixia County Guan River Road Xixia Longcheng Metallurgical Material Group Co., Ltd. Patentee after: HENAN LONGCHENG GROUP Co.,Ltd. Address before: Henan province Xixia County Guan River Road Xixia Longcheng Metallurgical Material Group Co., Ltd. Patentee before: LONGCHENG METALLURG MATERIAL G |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: NANYANG HANYE SPECIAL STEEL Co.,Ltd. Assignor: HENAN LONGCHENG GROUP Co.,Ltd. Contract record no.: 2010990000307 Denomination of invention: Steel-core alminium-system compound deoxidant and production process thereof Granted publication date: 20051109 License type: Exclusive License Open date: 20040915 Record date: 20100521 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20051109 |