CN102443705A - Composite deoxidizer for preparing metal powder by atomization method - Google Patents
Composite deoxidizer for preparing metal powder by atomization method Download PDFInfo
- Publication number
- CN102443705A CN102443705A CN2012100001518A CN201210000151A CN102443705A CN 102443705 A CN102443705 A CN 102443705A CN 2012100001518 A CN2012100001518 A CN 2012100001518A CN 201210000151 A CN201210000151 A CN 201210000151A CN 102443705 A CN102443705 A CN 102443705A
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- Prior art keywords
- powder
- metal
- composite deoxidant
- composite
- prepares
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- 239000000843 powder Substances 0.000 title claims abstract description 49
- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 238000000889 atomisation Methods 0.000 title claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 title abstract description 17
- 239000002184 metal Substances 0.000 title abstract description 17
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 25
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004571 lime Substances 0.000 claims abstract description 25
- 239000003610 charcoal Substances 0.000 claims abstract description 14
- 239000004411 aluminium Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 10
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 abstract description 11
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 2
- 238000003756 stirring Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 9
- 239000000155 melt Substances 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
A composite deoxidizer for preparing metal powder by an atomization method relates to a deoxidizer in the production of metal powder. It is characterized in that the composite deoxidizer comprises the components of aluminum lime, charcoal powder and silicon carbide powder. The composite deoxidizer for preparing the metal powder by the atomization method is formed by uniformly stirring and mixing the aluminum lime, the charcoal powder and the silicon carbide powder, can whiten slag when molten metal is deoxidized generally by only one to two times, achieves the aim of deoxidation, can effectively improve the deoxidation effect, and reduces the phenomenon that the metal recovery rate is influenced by slag incrustation.
Description
Technical field
A kind of atomization prepares the composite deoxidant of metal-powder, relates to the reductor in a kind of metal-powder production.
Background technology
At present, exist the problem of high energy consumption, high pollution, high labour intensity to be restricted owing to electrolytic process prepares metal-powder, atomization powder process or the powder process of atomizing-oxidation reduction process obtain fast development.
When atomization prepares metal-powder,, in the high temperature melting process, want oxidation because of ingress of air inevitably,, when fusing is accomplished soon, carry out deoxidation in order to eliminate the influence of oxidized metal to atomized powder because metal is to lean on the fusing of frequency smelting stove.The method of deoxidation of usefulness is to cover layer of aluminum lime at bath surface earlier basically at present, utilizes the oxidation of aluminium lime and replacing power to spin off the oxygen in the oxidized metal, utilizes single aluminium lime that institute's aerobic is all removed thoroughly.After the blackening of aluminium coating lime, take out the aluminium lime that covers through a slag, cover layer of aluminum lime again, be white until the aluminium lime that covers, show aluminium lime deoxidation completion, this process generally will repeat three to four times.Add the particulate state charcoal then and carry out deoxidation, generally also will add charcoal twice.Owing to when adding the deoxidation of aluminium lime, must take out the aluminium lime that adds, to prevent pollution to metal; Certainly to take out some deposite metals when therefore putting slag more; Every so many deoxidation point slags all will be taken certain metal out of, cause the loss of metal; Especially produce costly powder such as atomizing nickel powder, the loss of metal is maximum in this process basically.
Summary of the invention
The objective of the invention is the deficiency that exists to above-mentioned prior art, provide a kind of and can effectively improve deoxidation effect, reduce the composite deoxidant that the atomization that influences the recovery of metal because of a slag prepares metal-powder.
The objective of the invention is to realize through following technical scheme.
A kind of atomization prepares the composite deoxidant of metal-powder, it is characterized in that the composition of this composite deoxidant comprises aluminium lime, wood charcoal powder and carborundum powder.
A kind of atomization of the present invention prepares the composite deoxidant of metal-powder, and the weight ratio that it is characterized in that three kinds of compositions of described composite deoxidant is 1 ~ 1.8:1:0.5.
A kind of atomization of the present invention prepares the composite deoxidant of metal-powder, and the preparation process that it is characterized in that described composite deoxidant is when producing aluminium lime completion reaction, adds wood charcoal powder, carborundum powder, mixes.
A kind of atomization of the present invention prepares the composite deoxidant of metal-powder, it is characterized in that moisture weight content≤0.5% of described composite deoxidant.
A kind of atomization of the present invention prepares the composite deoxidant of metal-powder; For aluminium lime, wood charcoal powder, carborundum powder mix the composite deoxidant that the back forms; To the deposite metal deoxidation time, general need can make slag white one to twice, reach the deoxidation purpose; Can effectively improve deoxidation effect, reduce the phenomenon that influences metal recovery rate because of a slag.
Embodiment
A kind of atomization prepares the composite deoxidant of metal-powder, and the composition of this composite deoxidant comprises aluminium lime, wood charcoal powder and carborundum powder; Described three kinds of compositions are formed according to weight ratio 1 ~ 1.8:1:0.5, and the preparation method is when producing aluminium lime completion reaction, adds wood charcoal powder, carborundum powder, mixes.
Embodiment 1
When producing aluminium lime completion reaction, in 1kg aluminium lime, add 1kg wood charcoal powder, 0.5kg carborundum powder, mix; Process composite deoxidant; Be placed on about 4 hours of 120 ℃ of oven dry of design temperature to this composite deoxidant, cooling, it is for use to measure moisture in the composite deoxidant≤0.5% back.When producing the atomizing nickel powder, after about 70kg nickel plate melts fully in the 100kg intermediate frequency furnace, continue overheatedly to turn white until the melt color; At the about 0.5-0.7kg composite deoxidant of surface coverage; By the time after reductor is white in color fully,, be removed fully until reductor with nickel plate point slag.This moment is atomizing directly, the oxygen level 0.3% of atomizing back metal-powder.
Embodiment 2
When producing aluminium lime completion reaction, in 1.4kg aluminium lime, add 1kg wood charcoal powder, 0.5kg carborundum powder, mix; Process composite deoxidant; Be placed on about 4 hours of 120 ℃ of oven dry of design temperature to this composite deoxidant, cooling, it is for use to measure moisture in the composite deoxidant≤0.5% back.When producing the atomizing nickel powder, after about 70kg nickel plate melts fully in the 100kg intermediate frequency furnace, continue overheatedly to turn white until the melt color; At the about 0.5-0.7kg composite deoxidant of surface coverage; By the time after reductor is white in color fully,, be removed fully until reductor with nickel plate point slag.This moment is atomizing directly, the oxygen level 0.27% of atomizing back metal-powder.
Embodiment 3
When producing aluminium lime completion reaction, in 1.8kg aluminium lime, add 1kg wood charcoal powder, 0.5kg carborundum powder, mix; Process composite deoxidant; Be placed on about 4 hours of 120 ℃ of oven dry of design temperature to this composite deoxidant, cooling, it is for use to measure moisture in the composite deoxidant≤0.5% back.When producing the atomizing nickel powder, after about 70kg nickel plate melts fully in the 100kg intermediate frequency furnace, continue overheatedly to turn white until the melt color; At the about 0.5-0.7kg composite deoxidant of surface coverage; By the time after reductor is white in color fully,, be removed fully until reductor with nickel plate point slag.This moment is atomizing directly, the oxygen level 0.27% of atomizing back metal-powder.
Claims (4)
1. an atomization prepares the composite deoxidant of metal-powder, it is characterized in that the composition of this composite deoxidant comprises aluminium lime, wood charcoal powder and carborundum powder.
2. a kind of atomization according to claim 1 prepares the composite deoxidant of metal-powder, and the weight ratio that it is characterized in that three kinds of compositions of described composite deoxidant is 1 ~ 1.8:1:0.5.
3. a kind of atomization according to claim 1 prepares the composite deoxidant of metal-powder, and the preparation process that it is characterized in that described composite deoxidant is when producing aluminium lime completion reaction, adds wood charcoal powder, carborundum powder, mixes.
4. a kind of atomization according to claim 1 prepares the composite deoxidant of metal-powder, it is characterized in that moisture weight content≤0.5% of described composite deoxidant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100001518A CN102443705A (en) | 2012-01-04 | 2012-01-04 | Composite deoxidizer for preparing metal powder by atomization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100001518A CN102443705A (en) | 2012-01-04 | 2012-01-04 | Composite deoxidizer for preparing metal powder by atomization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102443705A true CN102443705A (en) | 2012-05-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100001518A Pending CN102443705A (en) | 2012-01-04 | 2012-01-04 | Composite deoxidizer for preparing metal powder by atomization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102443705A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909387A (en) * | 2012-11-14 | 2013-02-06 | 曹艺 | Preparation method for metal injection molding alloy powder |
| CN103128300A (en) * | 2013-03-19 | 2013-06-05 | 南京理工大学 | Device and method for reducing oxygen content in process of water atomization metal powder preparation |
| CN106521173A (en) * | 2016-11-30 | 2017-03-22 | 金川集团股份有限公司 | Compound deoxidizer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4225348A (en) * | 1978-04-04 | 1980-09-30 | Showa Denko Kabushiki Kaisha | Lime bearing agent for use in refining of ferrous melt |
| CN1071708A (en) * | 1991-10-17 | 1993-05-05 | 承德钢铁厂 | Directly alloying process in vanadium slag furnace |
| WO2001073139A2 (en) * | 2000-03-27 | 2001-10-04 | Newland Bart G | Compositions and two-stage methods for the deoxidation of molten steel |
| CN1412326A (en) * | 2001-10-16 | 2003-04-23 | 上海梅山(集团)有限公司 | Composite diffusion deoxidizer and use method thereof |
| CN101113484A (en) * | 2007-08-30 | 2008-01-30 | 重庆钢铁(集团)有限责任公司 | LF composite deoxidization reducer |
| CN101302569A (en) * | 2008-07-02 | 2008-11-12 | 上海柯瑞冶金炉料有限公司 | Ultra high power direct-current arc furnace deoxidation furnace-protective agent, making method and use thereof |
| CN101812568A (en) * | 2010-04-28 | 2010-08-25 | 河南省西保冶材集团有限公司 | Kalzium metal for deoxidization during steel making |
| CN102220456A (en) * | 2011-07-28 | 2011-10-19 | 郑州东升冶金新材料有限公司 | Submerged arc refining slag and preparation method thereof |
-
2012
- 2012-01-04 CN CN2012100001518A patent/CN102443705A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4225348A (en) * | 1978-04-04 | 1980-09-30 | Showa Denko Kabushiki Kaisha | Lime bearing agent for use in refining of ferrous melt |
| CN1071708A (en) * | 1991-10-17 | 1993-05-05 | 承德钢铁厂 | Directly alloying process in vanadium slag furnace |
| WO2001073139A2 (en) * | 2000-03-27 | 2001-10-04 | Newland Bart G | Compositions and two-stage methods for the deoxidation of molten steel |
| CN1412326A (en) * | 2001-10-16 | 2003-04-23 | 上海梅山(集团)有限公司 | Composite diffusion deoxidizer and use method thereof |
| CN101113484A (en) * | 2007-08-30 | 2008-01-30 | 重庆钢铁(集团)有限责任公司 | LF composite deoxidization reducer |
| CN101302569A (en) * | 2008-07-02 | 2008-11-12 | 上海柯瑞冶金炉料有限公司 | Ultra high power direct-current arc furnace deoxidation furnace-protective agent, making method and use thereof |
| CN101812568A (en) * | 2010-04-28 | 2010-08-25 | 河南省西保冶材集团有限公司 | Kalzium metal for deoxidization during steel making |
| CN102220456A (en) * | 2011-07-28 | 2011-10-19 | 郑州东升冶金新材料有限公司 | Submerged arc refining slag and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909387A (en) * | 2012-11-14 | 2013-02-06 | 曹艺 | Preparation method for metal injection molding alloy powder |
| CN103128300A (en) * | 2013-03-19 | 2013-06-05 | 南京理工大学 | Device and method for reducing oxygen content in process of water atomization metal powder preparation |
| CN106521173A (en) * | 2016-11-30 | 2017-03-22 | 金川集团股份有限公司 | Compound deoxidizer |
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Application publication date: 20120509 |