CN1032767C - Silicon-barium-strontium-iron alloy used as steel liquid deoxidizing agent and its preparing method - Google Patents
Silicon-barium-strontium-iron alloy used as steel liquid deoxidizing agent and its preparing method Download PDFInfo
- Publication number
- CN1032767C CN1032767C CN 94110231 CN94110231A CN1032767C CN 1032767 C CN1032767 C CN 1032767C CN 94110231 CN94110231 CN 94110231 CN 94110231 A CN94110231 A CN 94110231A CN 1032767 C CN1032767 C CN 1032767C
- Authority
- CN
- China
- Prior art keywords
- steel
- alloy
- strontium
- barium
- deoxidizing agent
- 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 - Fee Related
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The present invention relates to a Si-Ba-Sr-Fe alloy used as a deoxidizing agent for molten steel. The Si-Ba-Sr-Fe alloy has the chemical components by the following percentage: 30 to 60 of Si, 10 to 30 of Ba, 5 to 25 of Sr and Fe as the rest. 20 to 45% of quartzite, 10 to 30% of barite, 5 to 30% of celestite, 1 to 5% of iron dust, 0.5 to 5% of limestone, 0.5 to 2% of fluorite and 8 to 12% of coke are prepared and smelted in an ore hearth, and the Si-Ba-Sr-Fe alloy is prepared. The Si-Ba-Sr-Fe alloy is used for steel making deoxidation, and the Si-Ba-Sr-Fe alloy has the effects of further refining of crystal grains, enhancement of steel mechanical performance and saving of aluminium.
Description
Relate to a kind of iron alloy in the time of this, be specifically related to a kind of iron alloy as deoxidation in steel making.
Si-Ca or Al are traditional steel-making end-deoxidizers.Because the vapour point of calcium is low, on-the-spot use Si-Ca deoxidation, calcium evaporates the smog that forms calcium in a large number, and not only contaminate environment also can make on-the-spot low visibility, causes the production safety accident easily.And metallic aluminium owing to cost an arm and a leg, strengthens steel-making cost, also can form Al in steel simultaneously
2O
3Be mingled with, influence the use properties of steel.
At the shortcoming of above-mentioned traditional reductor, it is 89109528.4 a kind of complex deoxidizer for steelmaking si-al-ba-fe that Chinese patent CN1052901A discloses application number.The Chemical Composition of this alloy is Si22-28%, Al30-40%, and Ba3-12%, surplus is Fe.Though this alloy has overcome the shortcoming of Si-Ca and pure Al, and have the non-metallic inclusion of reduction total amount, improve the performance and the joint aluminium effect of inclusion shape, size and distribution, it is to the crystal grain of refinement steel, and the mechanical property effect that improves steel is not ideal enough; And in this alloy, still have 30-40% aluminium.
The object of the present invention is to provide the crystal grain of the further refinement steel of a kind of energy, and can further save the steel-making reductor of aluminium.
Steel making deoxidant provided by the invention, its Chemical Composition (weight ratio) is: Si30-60%, Ba10-30%, Sr5-25%, Fe surplus.
As everyone knows, strontium and barium are basic metal of the same clan, and its chemically reactive is very strong, with oxygen very strong avidity are arranged, and add in the steel, and its overwhelming majority reacts with oxygen and enters in the slag, are fully feasible so make the deoxidation composition with it.And elements strontium also can be used as the crystal grain effect that the refinement steel is played in the abnormalism agent.Because strontium is a surface active element, can be from metal melt the selected crystal grain that absorbs---on the melt interface, reduce grain growth speed, increase crystal grain quantity, thus refinement primary solidification structure.Strontium and oxygen, sulphur constantly enrichment in the solidification of molten steel process in addition, take place to send out during to certain degree of saturation should, produce non-metallic inclusion again, further increase the nucleus number, thereby impel more disperse of primary solidification structure.The raising of steel crystal structure dispersity and uniformity coefficient makes the corresponding raising of mechanical property of steel.
Consider Technology difficulty and economic reasonableness in the reductor smelting process, the content of this reductor barium and strontium, the upper limit is defined as 30% and 25% respectively, and when content surpassed this value, the rate of recovery of barium and strontium reduced, and economic target is poor.And the lower limit of barium and strontium is decided to be 10% and 5% respectively, is to consider that its impact of performance was not obvious when content was lower than this value.
Smelt 70Y hard wire steel, boi1er tube steel and low-alloy 16Mn class steel with reductor provided by the invention.The autstenitic grain size of steel is than improving 2 with si-al-ba-fe---3 ranks.After the deoxidation in the steel [0] content be 30---35PPm, deoxidation effect and si-al-ba-fe are suitable, yet in its composition because of not containing aluminium, so saved a large amount of steelmaking aluminums,, used si-al-ba-fe as deoxidation, steel per ton is saved aluminium and is worth about 10 yuan, and economic benefit is fairly obvious.
Below provide one embodiment of the present of invention.
Press 40 kilograms of quartzites, 25 kilograms in barite, 18 kilograms of lazurites, 4 kilograms of iron filings, 1 kilogram in Wingdale, 2 kilograms in fluorite, 10 kilograms of ratio batchings of coke add and smelt discharging after 1.5 hours in the hot stove in 1800KVA ore deposit, are broken into piece after the cooling, the reductor of making, component content is Si52%, Ba18%, Sr12%, Fe16%, other 2%, make 16Mn smelting steel final deoxygenation with this reductor, a ton steel add-on is 700 grams, reach five at ladle molten steel/begin for the moment to drop into, reach at 4/5ths o'clock to molten steel and thrown.After tested, strontium barium content is all less than 0.00005% in the steel, and [0] content is 34PPm, illustrates that strontium and barium chemically reactive are very strong, and easily and the oxygen effect in the steel, the overwhelming majority enters in the slag.Through metallurgical analysis, its grain fineness number reaches 10---11 grades, it is corresponding to improve 2 to 3 ranks with the si-al-ba-fe deoxidation, the mechanical property of steel be improved significantly, its σ
sReach 409MPa, surpass national standard 49MPa, σ
bReach 586MPa, surpass national standard 76MPa.
Claims (1)
1, as the silicon-barium-strontium-iron alloy of steel liquid deoxidizing agent, it is characterized in that its Chemical Composition is Si30-60%, Ba10-30%, Sr5-25%, Fe surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110231 CN1032767C (en) | 1994-05-04 | 1994-05-04 | Silicon-barium-strontium-iron alloy used as steel liquid deoxidizing agent and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110231 CN1032767C (en) | 1994-05-04 | 1994-05-04 | Silicon-barium-strontium-iron alloy used as steel liquid deoxidizing agent and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1097808A CN1097808A (en) | 1995-01-25 |
| CN1032767C true CN1032767C (en) | 1996-09-11 |
Family
ID=5034217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110231 Expired - Fee Related CN1032767C (en) | 1994-05-04 | 1994-05-04 | Silicon-barium-strontium-iron alloy used as steel liquid deoxidizing agent and its preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032767C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039831C (en) * | 1996-06-04 | 1998-09-16 | 谢廷声 | Polyalloy for desoxy and alloying in steelmaking |
| CN1083891C (en) * | 1999-07-08 | 2002-05-01 | 谢廷声 | Si-Ba-Mg-Fe alloy for deoxidizing in smelting steel |
| CN102618695B (en) * | 2012-03-31 | 2013-10-16 | 芜湖县天海耐火炉料有限公司 | Deoxidizing agent for steelmaking of electric converter and preparation method thereof |
| CN102758057B (en) * | 2012-06-21 | 2013-12-18 | 芜湖县天海耐火炉料有限公司 | Silicon-manganese-calcareous shale deoxidizer and preparation method thereof |
| CN102758063B (en) * | 2012-06-21 | 2013-11-06 | 芜湖县天海耐火炉料有限公司 | Silicon-manganese-barium alloy deoxidier and preparation method thereof |
| CN102758064B (en) * | 2012-06-21 | 2013-11-06 | 芜湖县天海耐火炉料有限公司 | Silicon-barium attapulgite deoxidier for steelmaking and preparation method thereof |
| CN112063799A (en) * | 2020-09-11 | 2020-12-11 | 西峡县众德汽车部件有限公司 | Steelmaking deoxidizer, preparation method, application and use method thereof |
-
1994
- 1994-05-04 CN CN 94110231 patent/CN1032767C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1097808A (en) | 1995-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101798618B (en) | Method for performing vanadium increase and refining in vanadium alloying by utilizing vanadium slag | |
| CN101353753B (en) | Ultra-low carbon high-purity industrial pure iron and manufacturing method thereof | |
| CN106834607A (en) | A kind of fining process for improving ferrite stainless steel continuous casting billet proportion of equiaxed grain | |
| CN1032767C (en) | Silicon-barium-strontium-iron alloy used as steel liquid deoxidizing agent and its preparing method | |
| CN101509094A (en) | Silicon-aluminum-barium-calcium rare earth iron alloy for steel-smelting | |
| CN101191170A (en) | Method for smelting stainless steel oxidizing slag by using argon oxygen furnace | |
| CN117187491A (en) | Manufacturing method of ultra-pure steel for semiconductor equipment | |
| CN1151282C (en) | Aluminium-free deoxidant for steel smelting | |
| CN1667131B (en) | Improved composite aluminium ball and preparation method thereof | |
| CN108977612A (en) | The smelting process of high-strength weather-resistant bolt steel | |
| CN1169986C (en) | Al-Si-Mn alloy and its preparing process | |
| US5207844A (en) | Method for manufacturing an Fe-Ni cold-rolled sheet excellent in cleanliness and etching pierceability | |
| CN109161635B (en) | Preparation method for extracting carbon and protecting manganese by converter smelting high-manganese high-sulfur high-phosphorus iron water | |
| CN101054613A (en) | Fluxing agent for prerefining molten steel during tapping process | |
| CN1068146A (en) | Multiple combined deoxidizing agent | |
| CN1025352C (en) | Silicon-aluminum-barium-strontium-iron alloy for steel deoxidation and preparation method thereof | |
| CN1141347A (en) | Multi-element alloy for deoxidising molten steel and alloying thereof | |
| CN1027701C (en) | Deoxidizing agent for converter steelmaking | |
| CN101993976B (en) | Aluminum killed steel refining deoxidation and desulfurization synthetic slag | |
| CN1083891C (en) | Si-Ba-Mg-Fe alloy for deoxidizing in smelting steel | |
| CN1039831C (en) | Polyalloy for desoxy and alloying in steelmaking | |
| CN1183262C (en) | Silicon barium calcium magnesium iron alloy used for steelmaking deoxygenation | |
| CN107904358A (en) | A kind of metal composites and its application with deoxygenation function | |
| CN102828099A (en) | Silicon manganese barium vanadium ferrum composite alloy used for smelting steel, and preparation method thereof | |
| CN1456691A (en) | Silicon-barium-strontium-calcium-magnesium-iron alloy as deoxidant in steelmaking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CI01 | Correction of invention patent gazette |
Correction item: Invention affairs Correct: delete False: Termination of patent right Number: 26 Page: 271 Volume: 18 |
|
| ERR | Gazette correction |
Free format text: CORRECT: INVENTION AFFAIRS; FROM: CESSATION OF PATENT RIGHT TO: DELETION |
|
| C56 | Change in the name or address of the patentee |
Owner name: BENXI METALLURGY GROUP CO., LTD. Free format text: FORMER NAME OR ADDRESS: BENXI SMELTING PLANT |
|
| CP03 | Change of name, title or address |
Address after: The Yangtze River Road 117100 in Liaoning Province, Benxi Manchu Autonomous County in the small town of No. 549 Patentee after: Benxi Smelting Group Co., Ltd. Address before: 117100 Liaoning County of Benxi Province Town Street Station Patentee before: Benxi Smelting Plant |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19960911 Termination date: 20130504 |