CN104946910A - Aluminum alloy additive - Google Patents
Aluminum alloy additive Download PDFInfo
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- CN104946910A CN104946910A CN201510365981.4A CN201510365981A CN104946910A CN 104946910 A CN104946910 A CN 104946910A CN 201510365981 A CN201510365981 A CN 201510365981A CN 104946910 A CN104946910 A CN 104946910A
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Abstract
The invention provides an aluminum alloy additive. The aluminum alloy additive comprises the following components: 70-90% of metal powder, 5-20% of elpasolite, 0-5% of potassium fluosilicate, and 0-5% of higher fatty acid salt, wherein the purity of the metal powder is greater than or equal to 99.5%; and the particle size is 70-120 meshes. Compared with the prior art, the aluminum alloy additive has the beneficial effects of higher absorptivity, stable absorption and better degassing effect.
Description
[technical field]
The present invention relates to aluminium alloy smelting technical field, particularly relate to a kind of aluminium alloy additive.
[background technology]
Current China has nearly 85% to be apply with the form of aluminium alloy in the aluminium total amount of consumption, need during smelting aluminium alloy to add various alloying element, to make the aluminium alloy of heterogeneity and model, meet different performance requirement, conventional unit have silicon, iron, copper, manganese, titanium, magnesium, chromium, tin, boron, rare earth etc.For fusing point, low and solubleness is very high in aluminium alloying element is as magnesium, zinc, mainly adds in pure metal mode.The metal that the fusing points such as silicon, iron, manganese are higher then adds with master alloy form, as aluminium silicon master alloy (silicon content 19%-21%), ferro-aluminum master alloy (iron-holder 19%-22%), aluminium manganese master alloy (manganese content 9%-11%), this method have easy and simple to handle, add-on accurately, alloying constituent is convenient to the advantages such as control, but energy consumption when master alloy is produced is very high, in aluminium alloy process for preparation, particularly add the loss of alloying element, waste greatly.
In correlation technique, occurred carrying out with metal additive the new form that adds, this metal additive comprises chalybeate, manganese agent, silicea etc.Metal additive fully mixes compacting with the pure metal powder of 75% and the fusing assistant (being made up of villiaumite, nitrate, villaumite and carbonate) of 25% to form, though it solves some shortcomings of adding in contained aluminium-base intermediate alloy mode, still there is following problem in current this additive: solvent temperature is high, specific absorption is unstable; The density of metal additive is general all large than aluminium, and when addition is very large, additive sinks to furnace bottom, forms bulk, has a strong impact on specific absorption.
Therefore, be necessary to provide a kind of new aluminium alloy additive to overcome above-mentioned technical problem in fact.
[summary of the invention]
The technical issues that need to address of the present invention are to provide that a kind of specific absorption is higher, the aluminium alloy additive of Vapor recovery unit.
A kind of aluminium alloy additive of the present invention, by weight percentage, comprises following component:
Wherein, described metal-powder purity is more than or equal to 99.5%, and granularity is 70-120 order.
Preferably, described metal-powder is iron powder, copper powder, manganese powder, titanium valve or chromium powder.
Compared with correlation technique, beneficial effect of the present invention is, (710-720 DEG C) can realize high specific absorption at a lower temperature, and dissolution rate is fast.The potassium cryolite added can not only promote that alloying element absorbs, and can also play slagging-off effect, and the interpolation of potassium silicofluoride can not only bulking additive block, discharges protective gas simultaneously, is conducive to the degasification of aluminium liquid, further increases the purity of aluminium liquid.Thus, described aluminium alloy additive possesses high specific absorption and stability, also possesses the cleaning molten ability of degasification slagging-off simultaneously.
[embodiment]
Below in conjunction with embodiment, the invention will be further described.
Described aluminium alloy additive by weight percentage, comprises following component: metal-powder 70-90%; Potassium cryolite 5-20%; Potassium silicofluoride 0-5%; Higher fatty acid salt 0-5%, wherein, described metal-powder purity is more than or equal to 99.5%, and granularity is 70-120 order.
Metal-powder granularity is comparatively thin, and purity is higher, can with aluminium liquid generation thermite reaction, promote that it absorbs.Potassium cryolite fusing point is low, under interpolation temperature (710-760 DEG C), can become liquid state rapidly, dissolution of metals powder surface and alumite, penetration enhancement.Potassium silicofluoride is as swelling agent and initiator; at interpolation temperature, undergoes rapid expansion, is conducive to aluminium liquid and enters into additive block inside; further promotion metal-powder and aluminium liquid generation thermite reaction; improve the casting yield of alloying element, meanwhile, himself decomposes; release protective gas; additive is fluctuated, slows down settling velocity, the dissolution rate of alloying element improves more than 1 times.Higher fatty acid salt its cohesive action main, is convenient to briquetting.The principal feature of this additive is as follows: 1, specific absorption is stable and high; 2, the potassium cryolite in additive possesses slagging-off ability, and potassium silicofluoride decompose themselves release guard gas possesses deaeration capability, and therefore this additive also helps the purification of melt.
Thus this aluminium alloy additive (710-720 DEG C) can realize high specific absorption at a lower temperature, and dissolution rate is fast.The potassium cryolite added can not only promote that alloying element absorbs, and can also play slagging-off effect, and the interpolation of potassium silicofluoride can not only bulking additive block, discharges protective gas simultaneously, is conducive to the degasification of aluminium liquid, further increases the purity of aluminium liquid.Thus, described aluminium alloy additive possesses high specific absorption and stability, also possesses the cleaning molten ability of degasification slagging-off simultaneously.
The making method of aluminium alloy additive, is equipped with raw material according to the above ratio, by 70-120 object metal-powder and appropriate potassium cryolite, potassium silicofluoride, mixes, then adds in said mixture by the higher fatty acid salt of having dried, all mix.Compacting in specific mould, is prepared into the powder agglomates of about density 3.5g/cm3, every block about 500g, then vacuum sealed package.
In present embodiment, described metal-powder is the metal-powder that the purity such as iron powder, copper powder, manganese powder, titanium valve or chromium powder are higher.
Be described further below in conjunction with specific embodiment.
Embodiment one:
A kind of aluminium alloy additive, comprises following component: iron powder 70kg; Potassium cryolite 20kg; Potassium silicofluoride 5kg; Higher fatty acid salt 5kg, wherein, described iron powder purity is 99.5%, and granularity is 80 orders.
Embodiment two:
A kind of aluminium alloy additive, comprises following component: copper powder 80kg; Potassium cryolite 15kg; Potassium silicofluoride 2kg; Higher fatty acid salt 3kg, wherein, described copper powder purity is 99.6%, and granularity is 90 orders.
Embodiment three:
A kind of aluminium alloy additive, comprises following component: manganese powder 85kg; Potassium cryolite 13kg; Potassium silicofluoride 1kg; Higher fatty acid salt 1kg, wherein, described manganese powder purity is 99.7%, and granularity is 100 orders.
Embodiment four:
A kind of aluminium alloy additive, comprises following component: titanium valve 90kg; Potassium cryolite 5kg; Potassium silicofluoride 0.5kg; Higher fatty acid salt 4.5kg, wherein, described titanium valve purity is 99.8%, and granularity is 110 orders.
Embodiment five:
A kind of aluminium alloy additive, comprises following component: chromium powder 85kg; Potassium cryolite 15kg, wherein, described chromium powder purity is 99.5%, and granularity is 120 orders.
Embodiment six:
A kind of aluminium alloy additive, comprises following component: metal-powder 80kg; Potassium cryolite 12kg; Potassium silicofluoride 4kg; Higher fatty acid salt 4kg, wherein, described metal-powder purity is 99.5%, and granularity is 70 orders.
Compared with correlation technique, beneficial effect of the present invention is, specific absorption is higher, Vapor recovery unit, degassing effect are better.
Above-described is only embodiments of the present invention, it should be pointed out that for the person of ordinary skill of the art at this, without departing from the concept of the premise of the invention, can also make improvement, but these all belongs to protection scope of the present invention.
Claims (2)
1. an aluminium alloy additive, is characterized in that: described aluminium alloy additive by weight percentage, comprises following component:
Wherein, described metal-powder purity is more than or equal to 99.5%, and granularity is 70-120 order.
2. aluminium alloy additive according to claim 1, is characterized in that: described metal-powder is iron powder, copper powder, manganese powder, titanium valve or chromium powder.
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| CN201510365981.4A CN104946910A (en) | 2015-06-29 | 2015-06-29 | Aluminum alloy additive |
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| CN201510365981.4A CN104946910A (en) | 2015-06-29 | 2015-06-29 | Aluminum alloy additive |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105861869A (en) * | 2016-06-21 | 2016-08-17 | 昆明冶金研究院 | Metal additive for aluminum alloy smelting |
| CN105886808A (en) * | 2016-06-21 | 2016-08-24 | 昆明冶金研究院 | Metal additive for aluminum alloy smelting and using method thereof |
| CN106367626A (en) * | 2016-12-05 | 2017-02-01 | 沈阳航空航天大学 | Alloy element additive of nitrate-containing fluxing agent and preparation method thereof |
| CN107099690A (en) * | 2017-07-11 | 2017-08-29 | 铜山县丰华工贸有限公司 | A kind of aluminium copper smelting additive |
| CN109207750A (en) * | 2018-09-20 | 2019-01-15 | 江苏锐阳照明电器设备有限公司 | A kind of high hardness aluminium alloy melting metallic addition and application method |
| CN111020258A (en) * | 2020-01-07 | 2020-04-17 | 昆明冶金研究院有限公司 | A356 aluminum alloy magnesium titanium composite additive with high solid yield and low burning loss and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046193A (en) * | 1989-04-03 | 1990-10-17 | 中国科学院金属研究所 | The additive that a kind of smelting aluminium alloy is used |
| CN101709383A (en) * | 2009-06-25 | 2010-05-19 | 于翔 | High-efficiency environment-friendly additive for smelting aluminum alloy |
| CN102618743A (en) * | 2011-01-28 | 2012-08-01 | 北京有色金属研究总院 | Additive for aluminum alloy melting |
-
2015
- 2015-06-29 CN CN201510365981.4A patent/CN104946910A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046193A (en) * | 1989-04-03 | 1990-10-17 | 中国科学院金属研究所 | The additive that a kind of smelting aluminium alloy is used |
| CN101709383A (en) * | 2009-06-25 | 2010-05-19 | 于翔 | High-efficiency environment-friendly additive for smelting aluminum alloy |
| CN102618743A (en) * | 2011-01-28 | 2012-08-01 | 北京有色金属研究总院 | Additive for aluminum alloy melting |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105861869A (en) * | 2016-06-21 | 2016-08-17 | 昆明冶金研究院 | Metal additive for aluminum alloy smelting |
| CN105886808A (en) * | 2016-06-21 | 2016-08-24 | 昆明冶金研究院 | Metal additive for aluminum alloy smelting and using method thereof |
| CN106367626A (en) * | 2016-12-05 | 2017-02-01 | 沈阳航空航天大学 | Alloy element additive of nitrate-containing fluxing agent and preparation method thereof |
| CN107099690A (en) * | 2017-07-11 | 2017-08-29 | 铜山县丰华工贸有限公司 | A kind of aluminium copper smelting additive |
| CN109207750A (en) * | 2018-09-20 | 2019-01-15 | 江苏锐阳照明电器设备有限公司 | A kind of high hardness aluminium alloy melting metallic addition and application method |
| CN111020258A (en) * | 2020-01-07 | 2020-04-17 | 昆明冶金研究院有限公司 | A356 aluminum alloy magnesium titanium composite additive with high solid yield and low burning loss and preparation method thereof |
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Effective date of registration: 20170821 Address after: Sheng Tong Industrial Park No. 109 Venus Road 410200 in Hunan province Changsha District of Wangcheng City Applicant after: Suntown Technology Group Corporation Address before: Taoyuan County in Hunan province Changde city 415700 disk town Chuangyuan Industrial Park Applicant before: Hunan Chuangyuan Aluminium Industry Co., Ltd. |
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Application publication date: 20150930 |