CN105238944A - Aluminum alloy refining metamorphosing agent and method for refining aluminum alloy - Google Patents
Aluminum alloy refining metamorphosing agent and method for refining aluminum alloy Download PDFInfo
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- CN105238944A CN105238944A CN201510732576.1A CN201510732576A CN105238944A CN 105238944 A CN105238944 A CN 105238944A CN 201510732576 A CN201510732576 A CN 201510732576A CN 105238944 A CN105238944 A CN 105238944A
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Abstract
The invention provides a refining metamorphosing agent used for an aluminum alloy A356.2 and a method for refining the aluminum alloy A356.2. The metamorphosing agent is characterized by including, by weight, 0.01 part to 0.05 part of Ce and 0.1 part to 0.2 part of Mg. By the adoption of the refining metamorphosing agent and the method, the better refined metamorphosing effect can be achieved, alpha-Al and the eutectic structure of the aluminum alloy are both obviously refined, and the comprehensive mechanical performance of the alloy can be remarkably improved.
Description
Technical field
The invention belongs to aluminum alloy materials melting and manufacture field, particularly a kind of method of A356.2 aluminium alloy fine degenerate.
Background technology
Aluminum alloy materials is widely used in the field such as automobile, aviation due to advantages such as its material are light, intensity is high, expansion and contraction snappiness is good.Especially flourish along with automobile industry in recent years, adopting aluminum alloy materials to prepare automobile component etc. becomes and realizes light-weighted Main Means.A356.2 aluminium alloy belongs to important automotive industry material, is especially used for casting hub etc.This kind of aluminium alloy belongs to Al-Si-Mg system alloy, and the mass content of Si is 6.5%-7.5%, because Si mass content is higher, belong to hypoeutectic structure, add fining agent so usually adopt, alterant reaches fine degenerate effect, thus improves the final structure and properties of alloy.
In the manufacturing processed of A356.2 aluminium alloy wheel hub, current the most widely used fining agent and alterant are respectively Al-5Ti-1B alloy and Al-10Sr alloy.In the thinning effect of Al-5Ti-1B alloy and matrix, the situation such as size, shape of the particle of TiB2, TiAl3 is closely related.TiB2 has larger segregation tendency in standing process, causes the forming core particle of α-Al to reduce, its refining effect therefore can be caused during aluminium liquid overstand greatly to weaken.The alterant Al-10Sr modification effect time is longer, and modification effect is better.But in actual casting process, unstable containing Sr alterant modification effect, the easy scaling loss of Sr in adding procedure, and exceed modification effect sharp-decay after the rotten life-span; In addition, containing the easy air-breathing of Sr alterant, thus the defects such as shrinkage cavity are brought.
Along with continuous research and development and the exploration of fining agent, alterant, it is found that rare earth possesses certain fine degenerate ability.China is the maximum countries of rare earth reserves, and along with the fast development of rare-earth trade, the cost of development such as light rare earths lanthanum (La), cerium (Ce) sharply decline, and are expected to be widely used in aluminum alloy materials.The interpolation of rare earth element, not only has fine degenerate effect, and also can play the effect of purification melt, is also therefore considered to the aluminium alloy fining modifier of at present most potentiality to be exploited.But lot of research at present, its fine degenerate effect is still undesirable, improves by adding rare earth element the emphasis that microstructure and property becomes Recent study.
Summary of the invention
Therefore, the object of this invention is to provide a kind of method of fining modifier for A356.2 aluminium alloy and refining A356.2 aluminium alloy.
In describing the invention, Al-10Ce alloy refers to that the amount of substance mark of Al and Ce is the alloy of 100:10.
Unless additionally illustrated, when the present invention describes the parts by weight of Al-10Ce alloy, the number that all to refer to the weight of Ce be criterion calculation.When the present invention describes the weight percent shared by Al-10Ce alloy, the weight all referring to be scaled Ce is the per-cent accounting for aluminium alloy weight of criterion calculation.Add the Al-10Ce of 1 weight part in aluminium alloy such as 100 weight parts, refer to that the weight of adding Ce is 1 weight part.
In one aspect of the invention, provide a kind of aluminium alloy fining modifier, it, for A356.2 aluminium alloy, is characterized in that, described fining modifier comprises the Ce of 0.01-0.05 part by weight and Mg of 0.1-0.2 part by weight.
In the present invention is preferred, described Ce adds with Al-10Ce alloy form, and Mg adds with magnesium ingot form.
In the present invention is preferred, described fining modifier comprises the Al-10Ce of 0.01-0.05 part by weight and Mg of 0.1-0.2 part by weight.
In the present invention is preferred, described alterant comprises Al-10Ce and the Mg of 0.2 part by weight of 0.01 part by weight.
In another aspect of the present invention, provide a kind of method of refining A356.2 aluminium alloy, it is characterized in that, the method is included in after A356.2 aluminum alloy melting, keep temperature in 725-735 degree Celsius, and in 100 parts of A356.2 aluminium alloys by weight, add the Ce of 0.01-0.05 part by weight and the magnesium of 0.1-0.2 part by weight, and stir; Preferably, the temperature kept is 730 degrees Celsius.
In the present invention is preferred, in 100 parts of A356.2 aluminium alloys by weight, add the Mg ingot of Al-10Ce and 0.1-0.2 part of 0.01-0.05 part by weight.
In the present invention is preferred, in 100 parts of A356.2 aluminium alloys by weight, add the Mg ingot of 0.01 part by weight Al-10Ce and 0.2 part.
In the present invention is preferred, described method passes into the step of nitrogen degasification 10min after being also included in and stirring.
In another aspect of the present invention, additionally provide the purposes of previously described fining modifier in refining A356.2 aluminium alloy.
In another aspect of the present invention, additionally provide the aluminum alloy materials after the refining prepared according to previously described method.
In other aspects of the present invention, additionally provide following technical scheme:
A method for A356.2 aluminium alloy fine degenerate, is characterized in that: in A356.2 aluminium alloy, add 0.01%-0.05% (weight percent) Ce and 0.1-0.2% (weight percent) Mg, Mg content be promoted to 0.3-0.4%.
For a fining modifier for A356.2 aluminium alloy, it is characterized in that, described fining modifier comprises the Ce of 0.01-0.05 part by weight and Mg of 0.1-0.2 part by weight.
In preferred at one, described Ce exists with the form of Al-10Ce alloy.
In the present invention one is preferred, described Mg exists with the form of magnesium ingot.
In another aspect of the present invention, the invention provides a kind of method of refining A356.2 aluminium alloy, the method is included in after A356.2 aluminum alloy melting, keep temperature in 725-735 degree Celsius, and in 100 parts of A356.2 aluminium alloys by weight, add the Ce of 0.01-0.05 part by weight and the magnesium of 0.1-0.2 part by weight, and stir.
In the present invention one is preferred, the temperature kept is 730 degrees Celsius.
In the present invention one is preferred, in 100 parts of A356.2 aluminium alloys by weight, add the Mg ingot of Al-10Ce and 0.1-0.2 part of 0.01-0.05 part by weight.
In the present invention one is preferred, described method passes into the step of nitrogen degasification 10min after being also included in and stirring.
In another aspect of the present invention, additionally provide according to the purposes of any one fining modifier previously described in refining A356.2 aluminium alloy.
In another aspect of the present invention, additionally provide the aluminum alloy materials after according to any one refining prepared of previously described method.
The present invention is by adding a small amount of rare earth at A356.2 aluminium alloy and Mg obtains tiny α-Al crystal grain and spheric eutectic silicon grain.
Fining modifier of the present invention and this fining modifier of method of refining can realize thin modification effect preferably, and make the α-Al of aluminium alloy and eutectic structure all have obvious thinning effect, can significantly improve the comprehensive mechanical performance of alloy.
Accompanying drawing explanation
Below, describe embodiment of the present invention in detail by reference to the accompanying drawings, wherein:
Fig. 1: the tangent plane photo of the aluminum alloy specimen obtained according to the method for embodiment 1; And
Fig. 2: the tangent plane photo of the aluminum alloy specimen obtained according to the method for embodiment 2.
Embodiment
embodiment 1
A356.2 aluminum alloy ingot is melted in molten aluminium stove, maintains the temperature at 730 DEG C, add the Al-10Sr of alloy the gross weight 0.2% and Al-5Ti-1B of 0.2%, after stirring, add the slag-cleaning agent of alloy gross weight 0.2%, pass into nitrogen degasification 10min simultaneously.After refining completes, cool to 700 DEG C of standing 5min, casting ingot-forming.T6 thermal treatment is carried out to watered ingot casting, solid solubility temperature 540 DEG C, quench after insulation 280min, afterwards at 150 DEG C of timeliness 150min, and observe the grain fineness number (see Fig. 1 (left side), photo after thermal treatment) of final sample.Grain fineness number etchant solution adopts the mixing solutions of hydrochloric acid, nitric acid and hydrofluoric acid, and its volume ratio is 15:5:1.Adopt trier Zwick/Roell-Z010 to carry out tensile property test to sample, test result is as shown in table 1.Obtain the tangent plane photo of the sample of product as shown in Figure 1.
Table 1: the tensile property of embodiment 2 sample
embodiment 2
A356.2 aluminum alloy ingot is melted in molten aluminium stove, maintain the temperature at 730 DEG C, add the Mg ingot (Mg content 99.5%) of the Al-10Ce and 0.2% of alloy gross weight 0.2%, add the slag-cleaning agent of alloy gross weight 0.2% after stirring, pass into nitrogen degasification 10min simultaneously.After refining completes, cool to 700 DEG C of standing 5min, casting ingot-forming.T6 thermal treatment is carried out to watered ingot casting, solid solubility temperature 540 DEG C, quench after insulation 280min, afterwards at 150 DEG C of timeliness 150min, and observe the grain fineness number (see Fig. 1 (right side), photo after thermal treatment) of final sample.Carry out tensile property test to sample, test result is as shown in table 2.Can find that from Fig. 1 embodiment 2 gained sample tissue is more tiny, contrast GB GB/T3246.1 ~ 3246.2-2000 is out of shape Al and Alalloy goods histological test method, can show that embodiment 1 sample grain size number is 3, embodiment 2 sample grain size number is 1.Contrast table 1 and table 2 can find out that embodiment 2 sample average yield strength ratio embodiment 1 sample improves 30%, and average tensile strength improves 21%, and average elongation improves 20%.Obtain the tangent plane photo of product as shown in Figure 2.
Table 2: the tensile property of embodiment 2 sample
Relatively can see by Fig. 1 and Fig. 2, makes the size of the crystalline structure of aluminium alloy inside less through aluminium alloy fining modifier of the present invention.
Claims (10)
1. an aluminium alloy fining modifier, it, for A356.2 aluminium alloy, is characterized in that, described fining modifier comprises the Ce of 0.01-0.05 part by weight and Mg of 0.1-0.2 part by weight.
2. fining modifier according to claim 1, is characterized in that, described Ce adds with Al-10Ce alloy form, and Mg adds with magnesium ingot form.
3. fining modifier according to claim 1, is characterized in that, described fining modifier comprises the Al-10Ce of 0.01-0.05 part by weight and Mg of 0.1-0.2 part by weight.
4. fining modifier according to claim 1, is characterized in that, described fining modifier comprises Al-10Ce and the Mg of 0.2 part by weight of 0.01 part by weight.
5. the method for a refining A356.2 aluminium alloy, it is characterized in that, the method is included in after A356.2 aluminum alloy melting, keep temperature in 725-735 degree Celsius, and in 100 parts of A356.2 aluminium alloys by weight, add the Ce of 0.01-0.05 part by weight and the magnesium of 0.1-0.2 part by weight, and stir; Preferably, the temperature kept is 730 degrees Celsius.
6. method according to claim 5, is characterized in that, adds the Mg ingot of Al-10Ce and 0.1-0.2 part of 0.01-0.05 part by weight in 100 parts of A356.2 aluminium alloys by weight.
7. method according to claim 5, is characterized in that, adds the Mg ingot of Al-10Ce and 0.2 part of 0.01-0.05 part by weight in 100 parts of A356.2 aluminium alloys by weight.
8. method according to claim 5, is characterized in that, described method passes into the step of nitrogen degasification 10min after being also included in and stirring.
9. the purposes of the alterant according to any one of claim 1-4 in refining A356.2 aluminium alloy.
10. the aluminum alloy materials after the refining prepared according to the method according to any one of claim 5-8.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086536A (en) * | 2016-08-19 | 2016-11-09 | 中信戴卡股份有限公司 | A kind of alterant for alloy refining, the method using its refining aluminium alloy and the aluminium alloy obtained |
| CN106834818A (en) * | 2017-03-20 | 2017-06-13 | 中信戴卡股份有限公司 | A kind of aluminum alloy materials and preparation method thereof |
| CN107058774A (en) * | 2017-01-03 | 2017-08-18 | 中信戴卡股份有限公司 | A kind of efficient alterant and preparation method for A356.2 aluminium alloys |
| CN109706357A (en) * | 2019-03-20 | 2019-05-03 | 安徽信息工程学院 | It is a kind of to change material of alloy structure and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001200325A (en) * | 2000-01-19 | 2001-07-24 | Nippon Light Metal Co Ltd | Aluminum alloy casting subjected to plastic working, method for producing aluminum alloy casting and joining method utilizing plastic deformation |
| CN104894410A (en) * | 2015-03-19 | 2015-09-09 | 中信戴卡股份有限公司 | Refining method for aluminum alloy |
-
2015
- 2015-10-30 CN CN201510732576.1A patent/CN105238944A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001200325A (en) * | 2000-01-19 | 2001-07-24 | Nippon Light Metal Co Ltd | Aluminum alloy casting subjected to plastic working, method for producing aluminum alloy casting and joining method utilizing plastic deformation |
| CN104894410A (en) * | 2015-03-19 | 2015-09-09 | 中信戴卡股份有限公司 | Refining method for aluminum alloy |
Non-Patent Citations (2)
| Title |
|---|
| 王士贺等: "稀土Ce中间合金对A356铝合金组织的影响", 《中国铸造与装备技术》 * |
| 赵忠等: "Al-Si7-Mg0.8-Y0.3合金消失模铸造震动压力凝固组织性能研究", 《第九届全国铸造学会消失模铸造学术年会暨首届全国V法铸造学术年会论文集》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086536A (en) * | 2016-08-19 | 2016-11-09 | 中信戴卡股份有限公司 | A kind of alterant for alloy refining, the method using its refining aluminium alloy and the aluminium alloy obtained |
| CN107058774A (en) * | 2017-01-03 | 2017-08-18 | 中信戴卡股份有限公司 | A kind of efficient alterant and preparation method for A356.2 aluminium alloys |
| CN106834818A (en) * | 2017-03-20 | 2017-06-13 | 中信戴卡股份有限公司 | A kind of aluminum alloy materials and preparation method thereof |
| CN109706357A (en) * | 2019-03-20 | 2019-05-03 | 安徽信息工程学院 | It is a kind of to change material of alloy structure and preparation method thereof |
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Application publication date: 20160113 |