CN104212988A - Molten aluminum alloy refining equipment and refining method - Google Patents
Molten aluminum alloy refining equipment and refining method Download PDFInfo
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- CN104212988A CN104212988A CN201410503349.7A CN201410503349A CN104212988A CN 104212988 A CN104212988 A CN 104212988A CN 201410503349 A CN201410503349 A CN 201410503349A CN 104212988 A CN104212988 A CN 104212988A
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- aluminium alloy
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Abstract
The invention discloses molten aluminum alloy refining equipment and a refining method. The molten aluminum alloy refining equipment comprises a melting cavity (1) for melting an aluminum alloy, a shielding gas supply device and a plurality of gas guide pipes (2), wherein gas inlet ends of the gas guide pipes (2) are connected with the shielding gas supply device, and gas outlet ends thereof extend to the bottom of the melting cavity (1); and the gas outlet ends of the plurality of gas guide pipes (2) are positioned in different positions far from the bottom center of the melting cavity (1). The molten aluminum alloy refining equipment and the refining method can quickly and conveniently remove the slag inclusion on the surface of the molten aluminum alloy after the slag inclusion of the aluminum alloy is removed.
Description
Technical field
The present invention relates to aluminum alloy smelting field, particularly, relate to a kind of molten aluminium alloy refining unit and method of refining.
Background technology
In after alloy refining process, have partial oxidation, thereby cause aluminium alloy to melt in liquid, have folder slag inclusion, the Al-alloy products of making cannot meet the requirement of high-end devices part.Therefore need to beat slag inclusion to the aluminium alloy of melting.
The existing slag inclusion process of beating is by directly melting in crucible of aluminium alloy, beats slag inclusion, then manually stir, after standing, remove the slag inclusion of aluminum alloy melt surface, this slag inclusion process of beating tends to splashing of metal and causes staff injured, and the slag inclusion of aluminum alloy melt surface disperses to be difficult to remove step by step simultaneously.
Summary of the invention
The object of this invention is to provide a kind of molten aluminium alloy refining unit and method of refining, by this molten aluminium alloy refining unit and this method of refining, can remove quickly and easily the folder slag inclusion of beating the aluminum alloy surface of melting after slag inclusion.
To achieve these goals, the invention provides a kind of molten aluminium alloy refining unit, this molten aluminium alloy refining unit comprises melting chamber, protection gas feeding mechanism and a plurality of airway for molten aluminium alloy, the inlet end of airway is connected in protection gas feeding mechanism, and outlet side extends to the bottom of melting chamber; Wherein, the outlet side of a plurality of airways is positioned at the position different apart from the bottom centre of melting chamber.
Preferably, the outlet side of a plurality of airways is positioned at the edge of the bottom of melting chamber.
Preferably, to be vertically installed in melt chamber indoor for a plurality of airways.
Preferably, a plurality of airways are uniformly distributed in the edge of the bottom of melting chamber.
Preferably, the outlet side of a plurality of airways is that sphere has the hemispherical dome structure of porous and sphere towards the bottom centre of melting chamber.
The present invention also provides a kind of molten aluminium alloy method of refining, and the method comprises to the bottom that holds the melting chamber of molten aluminium alloy and pass into protection gas, will protection air lift for the different positions of the bottom centre to apart from melting chamber.
Preferably, protection air lift is supplied to bottom centre and the edge to melting chamber.
The air pressure of the protection gas that preferably, protection gas feeding mechanism provides is 50-80Pa.
Preferably, the protection gas that protection gas feeding mechanism provides is nitrogen or argon gas.
By above-mentioned technological method, the outlet side that is provided with a plurality of airways and the plurality of airway in the melting chamber of molten aluminium alloy refining unit provided by the invention is positioned at the different position of bottom centre of the described melting chamber of distance, the protection gas that protection gas feeding mechanism provides so just can be expelled to from the outlet side of airway in melting chamber, thereby the aluminum alloy melt body between two airways that make to be connected can seethe fast, thereby the slag inclusion that aluminium alloy liquid is mingled with concentrates on the surface of aluminium alloy liquid, especially the middle part of aluminum alloy melt surface, so just, can concentrate rapidly the melting except slag inclusion and aluminium alloy.This refining mode not only can prevent that aluminium alloy liquid from splashing and hurt sb.'s feelings, but also can improve refining efficiency, greatly reduced production cost.
Other features and advantages of the present invention partly in detail are described the embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of the molten aluminium alloy refining unit that provides of the preferred embodiment of the present invention.
Description of reference numerals
1, melting chamber 2, airway
3, aluminium alloy liquid 4, slag inclusion
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that not doing contrary explanation, the noun of locality using only represents the orientation of this term under normal service condition as the noun of locality that " interior, bottom " etc. is included in term, or is being commonly called as of those skilled in the art's understanding, and should not be considered as the restriction to this term.
The invention provides a kind of molten aluminium alloy refining unit, as shown in Figure 1, this molten aluminium alloy refining unit comprises melting chamber 1, protection gas feeding mechanism and a plurality of airway 2 for molten aluminium alloy, the inlet end of airway 2 is connected in protection gas feeding mechanism, and outlet side extends to the bottom of melting chamber 1; Wherein, the outlet side of a plurality of airways 2 is positioned at the position different apart from the bottom centre of melting chamber 1.
In the above-described embodiment, a plurality of airways can be distributed in melting chamber 1 equably, also can according to certain specific rule, be distributed in melting chamber 1, for the slag inclusion 4 that makes to be mingled with in aluminium alloy liquid 3 can concentrate on the middle part on aluminium alloy liquid 3 surfaces, preferably, the outlet side of a plurality of airways 2 is positioned at the edge of the bottom of melting chamber 1.From the protection gas of airway 2 ejections, just can drive aluminium alloy liquid 3 to move to central position from the edge of melting chamber 1 like this; thereby make aluminium alloy liquid 3 in melting chamber 1, carry out regular seething; seethe the backflow direction of formation as shown in the arrow in Fig. 1, thereby slag inclusion 4 is converged at the center on aluminium alloy liquid 3 surfaces.All slag inclusions 4 meet at the center on aluminium alloy liquid 3 surfaces not only can improve the efficiency except slag inclusion 4, the concentration of the slag inclusion 4 at the middle part on aluminium alloy liquid 3 surfaces makes the slag inclusion 4 at other position converge to the middle part on aluminium alloy liquid 3 surfaces far above other positions simultaneously, and this has further improved the efficiency except slag inclusion 4.
In addition, the axis of a plurality of airways 2 can parallel with the axis of described melting chamber 1, also can and the axis of described melting chamber 1 between form angle, for the ease of the installation and removal of airway 2, preferably, a plurality of airways 2 are all vertically installed in melting chamber 1.
In addition, in the situation that the outlet side of airway 2 is positioned at the edge of the bottom of melting chamber 1, for the position relationship of two adjacent airways 2, there is no particular limitation, can be to be uniformly distributed, and can be also uneven distribution.For the severe degree of seething of the aluminium alloy liquid 3 of each position in melting chamber 1 is consistent, preferably make airway 2 be uniformly distributed along the edge of the bottom of melting chamber 1.For example, when the bottom of melting chamber 1 is while being circular, a plurality of airways 2 are uniformly distributed circumferentially in the edge of the bottom of melting chamber 1, and for example adjacent airway 2 can the predetermined angle (for example 30-60 °) in interval; Or when the bottom of melting chamber 1 is rectangle, a plurality of airways 2 compartment of terrains are uniformly distributed in each edge of the bottom of melting chamber 1, for example, at each edge, the distance between two adjacent described airways 2 can be 20-30cm.Because the severe degree of seething of the aluminium alloy liquid 3 of each position in melting chamber 1 is consistent, can make the slagging-off effect of the metal liquid of each position in melting chamber 1 identical, thereby the physico-chemical property at each position of the aluminium alloy of die casting is consistent, thereby improves the quality of Al-alloy products.
And in the present invention, the outlet side of each airway 2 can be uncovered shape, can be to be also arranged to special shape, as seedpod of the lotus shape.In order can evenly to be given vent to anger in the outlet side of each air guide 2 pipes, preferably, the outlet side of each airway 2 is cell texture.In the situation that the outlet side of airway 2 is positioned at the edge of the bottom of melting chamber 1, more preferably, the outlet side of airway 2 is that sphere has the hemispherical dome structure of porous and sphere towards the bottom centre of melting chamber 1.So just, can make all towards the bottom centre of melting chamber 1, to spray from the outlet side of airway 2 expellant gas, give full play to gas effect, thereby reach cost-saving effect.
The present invention also provides a kind of molten aluminium alloy method of refining, and the method comprises to the bottom that holds the melting chamber 1 of molten aluminium alloy and pass into protection gas, will protection air lift for the different positions of the bottom centre to apart from melting chamber 1.In melting chamber 1, just can seethe fast like this and slag inclusion 4 be converged at the middle part on aluminium alloy liquid 3 surfaces be convenient to remove, improve refining quality.
In order to improve quality and the efficiency that in aluminium alloy liquid 3, slag inclusion 4 is removed, preferably, protection air lift is supplied to the bottom margin to melting chamber 1.More preferably, for the severe degree of seething of aluminium alloy liquid 3 is consistent, position that can be uniform at the edge of the bottom along melting chamber 1 provides protection gas.For example, can use the alloy refining equipment that melts of the present invention to carry out refining.
In should molten aluminium alloy method of refining, the air pressure of the protection gas that this protection gas feeding mechanism provides can affect the quality that slag inclusion 4 is removed.Air pressure is too low, and aluminium alloy liquid 3 seethes the inadequate distance of degree, is difficult to realize converging fast of slag inclusion 4, is unfavorable for the raising of refreshing rate of production and marketing.Air pressure is too high to be caused seething and too acutely makes slag inclusion 4 be difficult to converge, and the effect that slag inclusion 4 is removed is undesirable, and preferably, air pressure is 50-80Pa.The effect that so not only has excellent slag inclusion 4 to remove, also has high production efficiency simultaneously.
In addition, there is no particular limitation for the kind of the protection gas providing for protection gas feeding mechanism, as long as can prevent that 3 oxidations of aluminium alloy liquid from aluminium alloy liquid 3, chemical reaction not occurring simultaneously, preferably, is nitrogen or argon gas.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, between various embodiment of the present invention, also can carry out arbitrary combination, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (9)
1. a molten aluminium alloy refining unit, it is characterized in that, described molten aluminium alloy refining unit comprises melting chamber (1), protection gas feeding mechanism and a plurality of airway (2) for molten aluminium alloy, the inlet end of described airway (2) is connected in described protection gas feeding mechanism, and outlet side extends to the bottom of described melting chamber (1);
Wherein, the outlet side of a plurality of described airways (2) is positioned at the different position of bottom centre of the described melting chamber of distance (1).
2. molten aluminium alloy refining unit according to claim 1, wherein, the outlet side of described a plurality of airways (2) is positioned at the edge of the bottom of described melting chamber (1).
3. molten aluminium alloy refining unit according to claim 2, wherein, described a plurality of airways (2) are vertically installed in described melting chamber (1).
4. molten aluminium alloy refining unit according to claim 3, wherein, described a plurality of airways (2) are uniformly distributed in the edge of the bottom of described melting chamber (1).
5. according to the molten aluminium alloy refining unit described in any one in claim 1-4, wherein, the outlet side of described a plurality of airways (2) is that sphere has the hemispherical dome structure of porous and sphere towards the bottom centre of described melting chamber (1).
6. a molten aluminium alloy method of refining; the method comprises to the bottom that holds the melting chamber (1) of molten aluminium alloy and passes into protection gas; it is characterized in that the different positions by described protection air lift for the bottom centre to the described melting chamber of distance (1).
7. method according to claim 6, wherein, supplies bottom centre and the edge to described melting chamber (1) by described protection air lift.
8. according to the method described in claim 6 or 7, wherein, the air pressure of the protection gas that described protection gas feeding mechanism provides is 50-80Pa.
9. according to the method described in claim 6 or 7, wherein, the protection gas that described protection gas feeding mechanism provides is nitrogen or argon gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410503349.7A CN104212988B (en) | 2014-09-25 | 2014-09-25 | Molten aluminum alloy refining equipment and refining method |
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| CN201410503349.7A CN104212988B (en) | 2014-09-25 | 2014-09-25 | Molten aluminum alloy refining equipment and refining method |
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| CN104212988A true CN104212988A (en) | 2014-12-17 |
| CN104212988B CN104212988B (en) | 2017-02-08 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050427U (en) * | 1989-04-11 | 1990-01-03 | 江苏省南通有色铸造厂 | Aluminum alloy double drum nitrogen desiccator refining installalion |
| JP2004217473A (en) * | 2003-01-15 | 2004-08-05 | Sharp Corp | Apparatus and method for purifying silicon and silicon purified using the same |
| CN2923735Y (en) * | 2006-07-14 | 2007-07-18 | 江苏凯特汽车部件有限公司 | Nitrogen powder-spraying finely smelting apparatus of aluminium alloy smelting furnace |
| CN201981245U (en) * | 2010-12-31 | 2011-09-21 | 遵义钛业股份有限公司 | Magnesium refining and stirring device |
| CN202936467U (en) * | 2012-12-04 | 2013-05-15 | 无锡邦得机械有限公司 | Molten aluminum refining and degassing device |
| CN204198828U (en) * | 2014-09-25 | 2015-03-11 | 镁联科技（芜湖）有限公司 | Molten aluminium alloy refining unit |
-
2014
- 2014-09-25 CN CN201410503349.7A patent/CN104212988B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050427U (en) * | 1989-04-11 | 1990-01-03 | 江苏省南通有色铸造厂 | Aluminum alloy double drum nitrogen desiccator refining installalion |
| JP2004217473A (en) * | 2003-01-15 | 2004-08-05 | Sharp Corp | Apparatus and method for purifying silicon and silicon purified using the same |
| CN2923735Y (en) * | 2006-07-14 | 2007-07-18 | 江苏凯特汽车部件有限公司 | Nitrogen powder-spraying finely smelting apparatus of aluminium alloy smelting furnace |
| CN201981245U (en) * | 2010-12-31 | 2011-09-21 | 遵义钛业股份有限公司 | Magnesium refining and stirring device |
| CN202936467U (en) * | 2012-12-04 | 2013-05-15 | 无锡邦得机械有限公司 | Molten aluminum refining and degassing device |
| CN204198828U (en) * | 2014-09-25 | 2015-03-11 | 镁联科技（芜湖）有限公司 | Molten aluminium alloy refining unit |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cao Huilan Inventor before: Zhang Jianjun Inventor before: Zhang Guangcheng Inventor before: Lou Hui Inventor before: Tao Xiuxiu Inventor before: Lin Yulin |
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Effective date of registration: 20161020 Address after: 241000, Anhui Yijiang District, Wuhu, Yijiang Jiayuan two stage 14-2-201 Applicant after: Cao Huilan Address before: The high-tech industry in Anhui province 241000 Wuhu Matang District Development Zone Applicant before: M-Union (Wuhu) Co., Ltd. |
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Effective date of registration: 20190305 Address after: 215137 Zhentai Road, Taiping Industrial Park, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Suzhou Jincheng Precision Die Casting Co., Ltd. Address before: 241000 Jiayuan Phase II 14-2-201, Yijiang District, Wuhu City, Anhui Province Patentee before: Cao Huilan |