CN102277511B - Nanometer smelting agent for magnesium alloy - Google Patents
Nanometer smelting agent for magnesium alloy Download PDFInfo
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- CN102277511B CN102277511B CN201110235070A CN201110235070A CN102277511B CN 102277511 B CN102277511 B CN 102277511B CN 201110235070 A CN201110235070 A CN 201110235070A CN 201110235070 A CN201110235070 A CN 201110235070A CN 102277511 B CN102277511 B CN 102277511B
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Abstract
The invention discloses a nanometer smelting agent for magnesium alloy, which comprises the following components in percentage by weight: 25-30% of MgCl2, 22-26% of KCl, 3-5% of NaCl, 6-10% of CaF2, 5-8% of BaCl2, 3-5% of MgO, 2-5% of ZrCl4, 2-6% of TiO2, 5-10% of NaNO3, 2-4% of C powder and 3-6% of cryolite. The nanometer smelting agent is applicable to the smelting of pure magnesium and magnesium alloy. Not only can a melt be efficiently refined by adding nanometer MgO, ZrCl4 and TiO2, NaNO3, C powder and the like into the smelting agent, but also N2 and CO2 can be generated to protect the melt, and the concentration of a harmful gas is diluted.
Description
Technical field
The present invention relates to the magnesiumalloy processing industry, particularly relate to a kind of used for magnesium alloy nanometer flux.
Background technology
Magnesiumalloy is the fastest light alloy of our times development and application; Have that light specific gravity, specific tenacity are high, specific rigidity is high, damping and amortization good, the electromagnetic shielding ability is strong, environmentally safe; And be easy to series of advantages such as recovery; Be described as the green engineering material of tool development and application potentiality " 21 century ", more and more receive the attention of industry member, becoming the third-largest metal engineering material after iron and steel and aluminium.Yet, magnesiumalloy oxidizing fire very easily in fusion process, and be prone in the melt be mixed be mingled with, gas and harmful elements such as Fe, Si.Carry out refining and protection so magnesiumalloy needs to add flux in smelting process, magnesiumalloy flux directly affects the quality of magnesiumalloy quality to the liquid magnesium alloy refining and the quality of protection effect.There is the problem that refining effect is poor, the magnesiumalloy metallurgical quality is not high in tradition magnesiumalloy flux, and discharges the obnoxious flavour of higher concentration in use, influences the healthy of workman.
Summary of the invention
The object of the present invention is to provide a kind of used for magnesium alloy nanometer flux; Be applicable to the melting of pure magnesium and magnesiumalloy; Through in flux, adding nano level Natural manganese dioxide, zirconium tetrachloride and titanium oxide, SODIUMNITRATE and Graphite Powder 99 etc., not only can carry out efficiency refining high, and can generate N melt
2And CO
2, melt is played a protective role, also diluted the concentration of obnoxious flavour.
The present invention adopts following technical scheme:
A kind of used for magnesium alloy nanometer flux, wherein, its component and weight percentage are: MgCl
2: 25-30%; KCl:22-26%; NaCl:3-5%; CaF
2: 6-10%; BaCl
2: 5-8%; MgO:3-5%; ZrCl
4: 2-5%; TiO
2: 2-6%; NaNO
3: 5-10%; C powder: 2-4%; Sodium aluminum fluoride: 3-6%.
A kind of preparation method of used for magnesium alloy nanometer flux, the first step is got the raw materials ready: get the raw materials ready by following weight percentage: MgCl
2: 25-30%; KCl:22-26%; NaCl:3-5%; CaF
2: 6-10%; BaCl
2: 5-8%; MgO:3-5%; ZrCl
4: 2-5%; TiO
2: 2-6%; NaNO
3: 5-10%; C powder: 2-4%; Sodium aluminum fluoride: 3-6%, said components is nano level;
Second step, a certain amount of magnesium chloride, Repone K, bariumchloride are packed in the crucible, be warming up to 450～470 ℃, add Calcium Fluoride (Fluorspan) and sodium-chlor then, continue to be warming up to raw material and melt fully, be cast into bulk after stirring, behind fragmentation, ball milling, become powder;
The 3rd step; Add dry zirconium tetrachloride powder, powdered titanium dioxide, SODIUMNITRATE, Graphite Powder 99 and the sodium aluminum fluoride of crossing again; And adding nano magnesia through surfactant treatment, mechanically mixing on planetary ball mill is then through screening, pack after the assay was approved warehouse-in.
Add SODIUMNITRATE, Graphite Powder 99 and sodium aluminum fluoride in the used for magnesium alloy nanometer flux, in fusion process, can generate protective gas such as nitrogen and carbonic acid gas, can also protect melt effectively when purifying melt, avoid contacting and oxidizing fire with air.Also add zirconium tetrachloride and titanium oxide in the flux, can remove harmful elements such as Si and Fe in the melt.In flux, add nano level Natural manganese dioxide, utilize the particle size effect of nano material to absorb the oxide inclusion in the melt, finally reach degasification purified effect.
Added nano level Natural manganese dioxide in the used for magnesium alloy nanometer flux, according to the principle of nanoparticle size and surface atom number, nano material almost all is made up of the individual layer surface atom; The surface atom number increases; Because Atomic coordinate is not enough and high surface energy, makes these surface atoms have high activity, and is extremely unstable; Be easy to combine, thereby generate heavier macrobead oxide compound and sedimentation with oxide inclusion.Promptly, has the ability of better removing oxide inclusion with micron order or bigger size compared.
Beneficial effect of the present invention is:
(1) (staple is MgCl at traditional magnesiumalloy flux
2, Repone K, Calcium Fluoride (Fluorspan), sodium-chlor, bariumchloride etc.) in add the oxide inclusion that nano level Natural manganese dioxide is used for absorbing melt, and prepare at flux and to add tensio-active agent in the process, prevent that nano particle from reuniting;
(2) add zirconium tetrachloride and titania powder, be used for removing melt Si and the Fe element bigger performance impact;
(3) add Powdered SODIUMNITRATE and Graphite Powder 99, generate protective gas such as nitrogen and carbonic acid gas, make bath surface resist show bubble, increased the contact area of melt and flux, make melt obtain better refining;
(4) use efficient nano flux of the present invention, use traditional magnesiumalloy flux, can make the intensity of magnesiumalloy improve 4～8%, elongation improves 5～10%.
Embodiment:
Below in conjunction with embodiment the present invention is further described:
Embodiment 1:
Used for magnesium alloy nanometer flux, its component and weight percentage are: MgCl
2: 25%; KCl:22%; NaCl:5%; CaF
2: 10%; BaCl
2: 5%; MgO:5%; ZrCl
4: 2%; TiO
2: 6%; NaNO
3: 10%; C powder: 4%; Sodium aluminum fluoride: 6%.
The preparation method of used for magnesium alloy nanometer flux:
The first step, get the raw materials ready: get the raw materials ready by said components, each component is nano level;
Second step, magnesium chloride, Repone K, bariumchloride are packed in the crucible, be warming up to 450 ℃, add Calcium Fluoride (Fluorspan) and sodium-chlor then, continue to be warming up to raw material and melt fully, be cast into bulk after stirring, behind fragmentation, ball milling, become powder;
The 3rd step; Add dry zirconium tetrachloride powder, powdered titanium dioxide, SODIUMNITRATE, Graphite Powder 99 and the sodium aluminum fluoride of crossing again; And adding nano magnesia through surfactant treatment, mechanically mixing is one hour on planetary ball mill, then through screening, pack after the assay was approved warehouse-in.
Embodiment 2:
Used for magnesium alloy nanometer flux, its component and weight percentage are: MgCl
2: 30%; KCl:26%; NaCl:3%; CaF
2: 6%; BaCl
2: 8%; MgO:3%; ZrCl
4: 5%; TiO
2: 4%; NaNO
3: 9%; C powder: 2%; Sodium aluminum fluoride: 4%.
The preparation method of used for magnesium alloy nanometer flux:
The first step, get the raw materials ready: get the raw materials ready by said components, each component is nano level;
Second step, magnesium chloride, Repone K, bariumchloride are packed in the crucible, be warming up to 470 ℃, add Calcium Fluoride (Fluorspan) and sodium-chlor then, continue to be warming up to raw material and melt fully, be cast into bulk after stirring, behind fragmentation, ball milling, become powder;
The 3rd step; Add dry zirconium tetrachloride powder, powdered titanium dioxide, SODIUMNITRATE, Graphite Powder 99 and the sodium aluminum fluoride of crossing again; And adding nano magnesia through surfactant treatment, mechanically mixing is one hour on planetary ball mill, then through screening, pack after the assay was approved warehouse-in.
Embodiment 3:
Used for magnesium alloy nanometer flux, its component and weight percentage are: MgCl
2: 28%; KCl:24%; NaCl:4%; CaF
2: 7%; BaCl
2: 7%; MgO:3.5%; ZrCl
4: 2.5%; TiO
2: 5%; NaNO
3: 9%; C powder: 4%; Sodium aluminum fluoride: 6%.
The preparation method of used for magnesium alloy nanometer flux:
The first step, get the raw materials ready: get the raw materials ready by said components, each component is nano level;
Second step, magnesium chloride, Repone K, bariumchloride are packed in the crucible, be warming up to 460 ℃, add Calcium Fluoride (Fluorspan) and sodium-chlor then, continue to be warming up to raw material and melt fully, be cast into bulk after stirring, behind fragmentation, ball milling, become powder;
The 3rd step; Add dry zirconium tetrachloride powder, powdered titanium dioxide, SODIUMNITRATE, Graphite Powder 99 and the sodium aluminum fluoride of crossing again; And adding nano magnesia through surfactant treatment, mechanically mixing is one hour on planetary ball mill, then through screening, pack after the assay was approved warehouse-in.
Embodiment 4:
Used for magnesium alloy nanometer flux, wherein, its component and weight percentage are: MgCl
2: 26%; KCl:26%; NaCl:5%; CaF
2: 10%; BaCl
2: 6%; MgO:4%; ZrCl
4: 4%; TiO
2: 3%; NaNO
3: 8%; C powder: 3%; Sodium aluminum fluoride: 5%.
The preparation method of used for magnesium alloy nanometer flux:
The first step, get the raw materials ready: get the raw materials ready by said components, each component is nano level;
Second step, magnesium chloride, Repone K, bariumchloride are packed in the crucible, be warming up to 465 ℃, add Calcium Fluoride (Fluorspan) and sodium-chlor then, continue to be warming up to raw material and melt fully, be cast into bulk after stirring, behind fragmentation, ball milling, become powder;
The 3rd step; Add dry zirconium tetrachloride powder, powdered titanium dioxide, SODIUMNITRATE, Graphite Powder 99 and the sodium aluminum fluoride of crossing again; And adding nano magnesia through surfactant treatment, mechanically mixing is one hour on planetary ball mill, then through screening, pack after the assay was approved warehouse-in.
Embodiment 5:
Used for magnesium alloy nanometer flux, its component and weight percentage are: MgCl
2: 27%; KCl:25%; NaCl:4.5%; CaF
2: 6%; BaCl
2: 6.5%; MgO:4%; ZrCl
4: 3%; TiO
2: 6%; NaNO
3: 9%; C powder: 3.5%; Sodium aluminum fluoride: 5.5%.
The preparation method of used for magnesium alloy nanometer flux:
The first step, get the raw materials ready: get the raw materials ready by said components, each component is nano level;
Second step, magnesium chloride, Repone K, bariumchloride are packed in the crucible, be warming up to 455 ℃, add Calcium Fluoride (Fluorspan) and sodium-chlor then, continue to be warming up to raw material and melt fully, be cast into bulk after stirring, behind fragmentation, ball milling, become powder;
The 3rd step; Add dry zirconium tetrachloride powder, powdered titanium dioxide, SODIUMNITRATE, Graphite Powder 99 and the sodium aluminum fluoride of crossing again; And adding nano magnesia through surfactant treatment, mechanically mixing is one hour on planetary ball mill, then through screening, pack after the assay was approved warehouse-in.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Other modifications that those of ordinary skills make technical scheme of the present invention perhaps are equal to replacement; Only otherwise break away from the spirit and the scope of technical scheme of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (2)
1. used for magnesium alloy nanometer flux, it is characterized in that: its component and weight percentage are: MgCl
2: 25-30%; KCl:22-26%; NaCl:3-5%; CaF
2: 6-10%; BaCl
2: 5-8%; MgO:3-5%; ZrCl
4: 2-5%; TiO
2: 2-6%; NaNO
3: 5-10%; C powder: 2-4%; Sodium aluminum fluoride: 3-6%, said components is nano level; A certain amount of magnesium chloride, Repone K, bariumchloride are packed in the crucible, be warming up to 450～470 ℃, add Calcium Fluoride (Fluorspan) and sodium-chlor then, continue to be warming up to raw material and melt fully, be cast into bulk after stirring, behind broken, ball milling, become powder; Zirconium tetrachloride powder, powdered titanium dioxide, SODIUMNITRATE, Graphite Powder 99 and sodium aluminum fluoride that adding drying is again crossed, and add nano magnesia through surfactant treatment, mechanically mixing on planetary ball mill is then through screening, pack after the assay was approved warehouse-in.
2. the preparation method of a used for magnesium alloy nanometer flux is characterized in that:
The first step is got the raw materials ready: get the raw materials ready by following weight percentage: MgCl
2: 25-30%; KCl:22-26%; NaCl:3-5%; CaF
2: 6-10%; BaCl
2: 5-8%; MgO:3-5%; ZrCl
4: 2-5%; TiO
2: 2-6%; NaNO
3: 5-10%; C powder: 2-4%; Sodium aluminum fluoride: 3-6%, said components is nano level;
Second step, a certain amount of magnesium chloride, Repone K, bariumchloride are packed in the crucible, be warming up to 450～470 ℃, add Calcium Fluoride (Fluorspan) and sodium-chlor then, continue to be warming up to raw material and melt fully, be cast into bulk after stirring, behind fragmentation, ball milling, become powder;
The 3rd step; Add dry zirconium tetrachloride powder, powdered titanium dioxide, SODIUMNITRATE, Graphite Powder 99 and the sodium aluminum fluoride of crossing again; And adding nano magnesia through surfactant treatment, mechanically mixing on planetary ball mill is then through screening, pack after the assay was approved warehouse-in.
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|---|---|---|---|
| CN201110235070A CN102277511B (en) | 2011-08-17 | 2011-08-17 | Nanometer smelting agent for magnesium alloy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110235070A CN102277511B (en) | 2011-08-17 | 2011-08-17 | Nanometer smelting agent for magnesium alloy |
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| CN102277511A CN102277511A (en) | 2011-12-14 |
| CN102277511B true CN102277511B (en) | 2012-10-10 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468976B (en) * | 2013-10-12 | 2014-10-08 | 青海三工镁业有限公司 | No-pollution green environment-friendly fluxing agent for magnesium and magnesium alloy and preparation method thereof |
| CN105349816B (en) * | 2015-11-30 | 2017-12-01 | 贵州航天风华精密设备有限公司 | A kind of protection solvent of magnesium alloy smelting and preparation method thereof |
| CN107400783A (en) * | 2017-01-18 | 2017-11-28 | 青海三工镁业有限公司 | A kind of high purity magnesium refining agent and high purity magnesium refinery practice |
| CN110387480B (en) * | 2019-08-21 | 2020-05-22 | 闻喜县凯利达贸易有限公司 | Particle refining agent for magnesium alloy and preparation method thereof |
| CN114381628B (en) * | 2021-12-15 | 2023-01-31 | 中国科学院金属研究所 | Refining agent and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942578A (en) * | 2010-08-31 | 2011-01-12 | 山东省科学院新材料研究所 | Magnesium alloy composite flux, preparation thereof and use thereof |
| CN101956089A (en) * | 2009-07-13 | 2011-01-26 | 淄博宏泰防腐有限公司 | Method for improving slag inclusion inside magnesium alloy ingot |
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|---|---|---|---|---|
| JP4162875B2 (en) * | 2001-07-30 | 2008-10-08 | 徹一 茂木 | Grain refinement method for magnesium alloy castings |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956089A (en) * | 2009-07-13 | 2011-01-26 | 淄博宏泰防腐有限公司 | Method for improving slag inclusion inside magnesium alloy ingot |
| CN101942578A (en) * | 2010-08-31 | 2011-01-12 | 山东省科学院新材料研究所 | Magnesium alloy composite flux, preparation thereof and use thereof |
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| Title |
|---|
| JP特开2003-41331A 2003.02.13 |
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Address after: 458000 Tanyu, dahejian, Qibin District, Hebi City, Henan Province Patentee after: Hebi Taihang Technology Co.,Ltd. Address before: 458006 dahejian Township, Qibin District, Hebi City, Henan Province Patentee before: HEBI HENGFENG CHEMICAL Co.,Ltd. |
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