CN101381821A - Flux-free aluminum alloy additive and preparation method thereof - Google Patents
Flux-free aluminum alloy additive and preparation method thereof Download PDFInfo
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- CN101381821A CN101381821A CNA2008102230430A CN200810223043A CN101381821A CN 101381821 A CN101381821 A CN 101381821A CN A2008102230430 A CNA2008102230430 A CN A2008102230430A CN 200810223043 A CN200810223043 A CN 200810223043A CN 101381821 A CN101381821 A CN 101381821A
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Abstract
The invention belongs to the field of nonferrous metal aluminum alloy processing, and relates to a flux-free aluminum alloy additive and a preparation method thereof. The additive is formed by pressing metal powder and aluminum powder, the composition of the additive comprises, by weight, 70% -95% of the metal powder and 5% -30% of the aluminum powder, and the metal powder in the additive is one or more of iron, manganese, copper, titanium, chromium and nickel. The properties of the metal powder and the aluminum powder are as follows: (1) the purity of the metal powder is not less than 98%, and the average particle size of the powder is 0.01-0.5 mm; (2) the purity of the aluminum powder is not less than 95%, and the average particle size of the powder is 0.01-0.5 mm. The preparation method comprises the steps of fully and uniformly mixing the metal powder and the aluminum powder, pressing the mixture into blocks by a press, and sealing and packaging the blocks. The invention has the advantages that: the adding mode is simple, the melting is rapid at the normal aluminum alloy casting temperature, the actual yield is high, the content is stable, and the control is easy; the flux is not contained, and the fluorine-containing pollutants are not discharged; the melt purity is improved.
Description
Technical field
The invention belongs to non-ferrous metal aluminium alloy manufacture field, relate to a kind of flux-free aluminium alloy additive agent and preparation method.
Background technology
Aluminium in use nearly 82% is used with alloy form.During smelting aluminium alloy, need to add the composition that metals such as iron, manganese, copper, titanium, chromium, nickel are adjusted alloy.In fusion process, master alloy is used in the adding of alloying element usually, but master alloy exists that power consumption is big, composition is unstable, feed intake and accumulating inconvenience, shortcoming that cost is high.Aluminium alloy additive had both had the advantageous characteristic of master alloy, overcome some shortcomings of master alloy again, thereby aluminium alloy additive obtained application more and more widely.
The conventional aluminum alloy addition contains halogenide salt such as fluoaluminate as fusing assistant, and it in use can discharge fluorine flue gas etc. in a large number and contain fluorine contaminant, to the very big pollution of atmosphere, soil and water generates.Simultaneously, some high-performance aluminium alloy products such as the aluminum alloy junction member in the air system, in order to improve the purity of melt, reduce foundry goods and are mingled with, and guarantee the high-performance and the reliability of part, do not allow to add halogenide salt class fusing assistant in fusion process.
Summary of the invention
In order to reduce the discharging that contains fluorine contaminant, satisfy the service requirements of some high-performance aluminium alloy product simultaneously, it is fast to the invention provides a kind of fusing speed, flux-free aluminium alloy additive agent that specific absorption is high and preparation method.
Additive is by metal-powder and aluminium powder compression moulding, and its constituent is calculation by percentage to the quality, metal-powder 70%～95%, and aluminium powder 5%～30%,
Metal-powder in the additive is one or more among iron, manganese, copper, titanium, chromium, the nickel.
For achieving the above object, the present invention takes following technical scheme: in metal-powder, add the part aluminium powder, after thorough mixing is even, be pressed into 50～500g briquetting with pressing machine through weighing, pack.It is characterized in that: add aluminium powder in metal-powder, its constituent is (calculating by percentage to the quality, down together):
(1) purity is not less than 98%, the metal-powder 70%～95% of powder median size between 0.01～0.5mm;
(2) purity is not less than 95%, the aluminium powder 5%～30% of powder median size between 0.01～0.5mm.
The summation of each component is 100% in its additive.
Main metal-powder in the above-mentioned additive can be one or more among iron, manganese, copper, titanium, chromium, the nickel, its tool
The kind of body metal and content can be selected by the aluminum alloy melt casting technical qualification.
The method for preparing flux-free aluminium alloy additive agent of the present invention comprises the steps:
In main metal-powder, add 5%～30% aluminium powder, after thorough mixing is even, be pressed into 50～500g briquetting with pressing machine through weighing, pack.
Adopt flux-free aluminium alloy additive agent of the present invention to have following advantage:
1. adding mode is simple, in normal aluminum alloy melt casting temperature fusing rapidly, and casting yield height, stable content, control easily;
2. do not contain flux, can not discharge and contain fluorine contaminant;
3. do not contain flux, the melt purity is improved.
Description of drawings
Fig. 1 is a flux-free aluminium alloy additive agent preparation technology schema of the present invention
Embodiment
Operational path of the present invention as shown in Figure 1.
1. the preparation of metal-powder (comprise iron, manganese, copper, titanium, chromium, nickel among one or more) and aluminium powder
Adopt known method to prepare metal-powder (comprise iron, manganese, copper, titanium, chromium, nickel among one or more) and aluminium powder.
2. the preparation of additive
In metal-powder, add 5%～30% aluminium powder, thorough mixing evenly after, be pressed into 50～500g briquetting through weighing with pressing machine, through packing after the assay was approved.
Embodiment 1 iron additive
(1) adopt known method to prepare purity and be not less than 98%, iron powder and the purity of powder median size between 0.01～0.5mm is not less than 95%, the aluminium powder of powder median size between 0.01～0.5mm;
(2) by 80% iron powder, the proportioning of 20% aluminium powder is even in stirrer for mixing with raw material;
(3) thorough mixing evenly after, be pressed into the 200g briquetting through weighing with pressing machine, pack.
Embodiment 2 manganese additives
(1) adopt known method to prepare purity and be not less than 98%, manganese powder and the purity of powder median size between 0.01～0.5mm is not less than 95%, the aluminium powder of powder median size between 0.01～0.5mm;
(2) by 85% iron powder, the proportioning of 15% aluminium powder is even in stirrer for mixing with raw material;
(3) thorough mixing evenly after, be pressed into the 50g briquetting through weighing with pressing machine, pack.
Embodiment 3 titanium additives
(1) adopt known method to prepare purity and be not less than 98%, titanium valve and the purity of powder median size between 0.01～0.5mm is not less than 95%, the aluminium powder of powder median size between 0.01～0.5mm;
(2) by 80% titanium valve, the proportioning of 20% aluminium powder is even in stirrer for mixing with raw material;
(3) thorough mixing evenly after, be pressed into the 200g briquetting through weighing with pressing machine, pack.
Embodiment 4 chrome additives
(1) adopt known method to prepare purity and be not less than 98%, chromium powder and the purity of powder median size between 0.01～0.5mm is not less than 95%, the aluminium powder of powder median size between 0.01～0.5mm;
(2) by 75% chromium powder, the proportioning of 25% aluminium powder is even in stirrer for mixing with raw material;
(3) thorough mixing evenly after, be pressed into the 100g briquetting through weighing with pressing machine, pack.
Embodiment 5 nickel additives
(1) adopt known method to prepare purity and be not less than 98%, nickel powder and the purity of powder median size between 0.01～0.5mm is not less than 95%, the aluminium powder of powder median size between 0.01～0.5mm;
(2) by 75% nickel powder, the proportioning of 25% aluminium powder is even in stirrer for mixing with raw material;
(3) thorough mixing evenly after, be pressed into the 150g briquetting through weighing with pressing machine, pack.
Claims (3)
1. flux-free aluminium alloy additive agent, it is characterized in that: additive is by metal-powder and aluminium powder compression moulding, its constituent is for calculating by weight percentage, metal-powder 70%～95%, aluminium powder 5%～30%, the metal-powder in the additive are one or more among iron, manganese, copper, titanium, chromium, the nickel.
2. flux-free aluminium alloy additive agent according to claim 1 is characterized in that the performance of described metal-powder and aluminium powder is satisfied with:
(1) metal-powder purity is not less than 98%, and the powder median size is between 0.01～0.5mm;
(2) aluminium powder purity is not less than 95%, and the powder median size is between 0.01～0.5mm.
3. the preparation method of a flux-free aluminium alloy additive agent, it is characterized in that be with metal-powder and aluminium powder thorough mixing evenly after, use the pressing machine briquetting, pack; Additive briquetting quality is 50～500g; The additive compact density is: 85Mn15Al:4.1～4.3g/cm
3, 80Fe20Al:3.2～3.4g/cm
3, 80Ti20Al:2.9～3.1g/cm
3, 75Cr25Al:3.9～4.1g/cm
3Additive briquetting diameter is 30-90mm, highly is 15-40mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008102230430A CN101381821A (en) | 2008-09-26 | 2008-09-26 | Flux-free aluminum alloy additive and preparation method thereof |
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| CNA2008102230430A CN101381821A (en) | 2008-09-26 | 2008-09-26 | Flux-free aluminum alloy additive and preparation method thereof |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162059A (en) * | 2011-03-30 | 2011-08-24 | 北京矿冶研究总院 | Manganese element additive for alloy steel and preparation method thereof |
| CN104032150A (en) * | 2014-07-02 | 2014-09-10 | 正邦（福建）冶金材料有限公司 | Formula and preparation method of aluminum type aluminum alloy additive |
| CN105039784A (en) * | 2015-08-28 | 2015-11-11 | 付黎 | Fine powder titanium preparation for producing aluminium alloy and preparation method for fine powder titanium preparation |
| CN105039754A (en) * | 2015-08-28 | 2015-11-11 | 重庆润际远东新材料科技有限公司 | Fine powder chromium preparation for producing aluminium alloy and preparation method for fine powder chromium preparation |
| CN105039814A (en) * | 2015-08-28 | 2015-11-11 | 重庆润际远东新材料科技有限公司 | Manganese additive for aluminum alloy and preparing method of manganese additive |
| CN105039757A (en) * | 2015-08-28 | 2015-11-11 | 重庆润际远东新材料科技有限公司 | High-content manganese additive used for producing aluminum alloy and preparing method of high-content manganese additive |
| CN105039756A (en) * | 2015-08-28 | 2015-11-11 | 重庆润际远东新材料科技有限公司 | High-content chromium metal additive for aluminum alloy production and preparation method thereof |
| CN105039819A (en) * | 2015-08-28 | 2015-11-11 | 重庆润际远东新材料科技有限公司 | High-chromium additive for producing aluminum alloy and preparation method of high-chromium additive |
| CN105039755A (en) * | 2015-08-28 | 2015-11-11 | 重庆润际远东新材料科技有限公司 | Fine powder iron additive for producing aluminium alloy and preparation method of fine powder iron additive |
| CN105063387A (en) * | 2015-08-28 | 2015-11-18 | 付黎 | Titanium agent used for producing aluminum alloy and preparation method thereof |
| CN105063388A (en) * | 2015-08-28 | 2015-11-18 | 重庆润际远东新材料科技有限公司 | Iron agent used for producing aluminum alloy and preparation method thereof |
| CN105063386A (en) * | 2015-08-28 | 2015-11-18 | 付黎 | High-titanium-content additives used for producing aluminum alloy and preparation method of high-titanium-content additives |
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| CN105087973A (en) * | 2015-08-28 | 2015-11-25 | 重庆润际远东新材料科技有限公司 | Chromium additive for producing aluminum alloy and preparation method of chromium additive |
| CN105087977A (en) * | 2015-08-28 | 2015-11-25 | 重庆润际远东新材料科技有限公司 | High-content iron metal additive used for producing aluminum alloy and preparation method of high-content iron metal additive |
| CN105087976A (en) * | 2015-08-28 | 2015-11-25 | 重庆润际远东新材料科技有限公司 | High-manganese-content additive for aluminum alloy and preparation method thereof |
| CN105087974A (en) * | 2015-08-28 | 2015-11-25 | 重庆润际远东新材料科技有限公司 | Aluminum alloy manganese additive and preparation method thereof |
| CN105331839A (en) * | 2015-12-10 | 2016-02-17 | 重庆润际远东新材料科技有限公司 | Mn-Mg additive for alloy |
| CN105838909A (en) * | 2016-05-27 | 2016-08-10 | 沧州市东众特种合金制造有限公司 | Preparation method for solvent-free aluminum-free aluminum alloy additive |
| CN106216640A (en) * | 2016-07-27 | 2016-12-14 | 哈尔滨东盛金属材料有限公司 | A kind of chrome additive for high-magnesium aluminum alloy founding and preparation method thereof |
| CN107267787A (en) * | 2017-07-10 | 2017-10-20 | 铜山县丰华工贸有限公司 | A kind of chromium agent and preparation method thereof of aluminum alloy smelting |
| CN107460350A (en) * | 2016-06-02 | 2017-12-12 | 文登市恒佳熔铸材料制品厂 | Metallic addition |
| CN111118321A (en) * | 2019-12-25 | 2020-05-08 | 哈尔滨东盛金属材料有限公司 | Aluminum alloy chromium additive and preparation method thereof |
| CN111235416A (en) * | 2020-04-07 | 2020-06-05 | 昆明冶金研究院有限公司 | Efficient green aluminum alloy additive and preparation method and application thereof |
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| CN112662907A (en) * | 2020-12-25 | 2021-04-16 | 河北四通新型金属材料股份有限公司 | Nickel element additive for aluminum alloy |
| CN116005024A (en) * | 2022-12-13 | 2023-04-25 | 浙江永杰铝业有限公司 | Method for preparing aluminum alloy strip from waste aluminum and aluminum alloy strip |
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2008
- 2008-09-26 CN CNA2008102230430A patent/CN101381821A/en active Pending
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| CN102162059A (en) * | 2011-03-30 | 2011-08-24 | 北京矿冶研究总院 | Manganese element additive for alloy steel and preparation method thereof |
| CN104032150A (en) * | 2014-07-02 | 2014-09-10 | 正邦（福建）冶金材料有限公司 | Formula and preparation method of aluminum type aluminum alloy additive |
| CN105087974A (en) * | 2015-08-28 | 2015-11-25 | 重庆润际远东新材料科技有限公司 | Aluminum alloy manganese additive and preparation method thereof |
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| CN105039757A (en) * | 2015-08-28 | 2015-11-11 | 重庆润际远东新材料科技有限公司 | High-content manganese additive used for producing aluminum alloy and preparing method of high-content manganese additive |
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