CN106435294A - Low-cost high-thermal-conductivity aluminum alloy and preparation method thereof - Google Patents
Low-cost high-thermal-conductivity aluminum alloy and preparation method thereof Download PDFInfo
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- CN106435294A CN106435294A CN201610850615.2A CN201610850615A CN106435294A CN 106435294 A CN106435294 A CN 106435294A CN 201610850615 A CN201610850615 A CN 201610850615A CN 106435294 A CN106435294 A CN 106435294A
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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Abstract
The invention discloses a high-thermal-conductivity aluminum alloy and a preparation method thereof. The high-thermal-conductivity aluminum alloy consists of the following components in percentage by weight: 8.5-10.5% of silicon, 0.3-0.5% of magnesium, less than or equal to 0.15% of manganese, less than or equal to 0.025% of copper, 0.1-0.3% of iron, 0.03-0.06% of boron, 0.01-0.02% of titanium, 0.01-0.02% of zirconium, less than 0.3% of zinc in impurities, less than 0.05% of other single impurity with total quantity less than 0.15% and the balance aluminum. The preparation method for the high-thermal-conductivity aluminum alloy comprises the following steps of: dosing and calculating; adding pure aluminum to smelt; adding silicon to smelt; adding iron to smelt; adding magnesium to smelt; adding an aluminum-zirconium intermediate alloy, an aluminum-titanium intermediate alloy and an aluminum-boron intermediate alloy to smelt; stirring, removing slag, sampling to test; regulating according to test results; and refining and degassing. The high-thermal-conductivity aluminum alloy disclosed by the invention has the advantages of being high in a heat conduction coefficient, good in corrosion resistance, good in mechanical processing property, low in raw material cost and the like.
Description
Technical field
The present invention relates to technical field of aluminum alloy technology, more particularly to a kind of high heat conduction aluminium alloy of low cost and its preparation side
Method.
Background technology
Pack alloy with the feature of its function admirable, have become as most potential, most widely used metal material it
One.At present, the thermal conductivity factor of common pack alloy is 100W/m.K, electronics, electrically, communication, the industry such as electromechanics, deposit
Affect the phenomenon of service behaviour in much work because of the heating such as components and parts, common pack alloy not can solve
The above-mentioned problem producing because of the heating such as components and parts.
In order to improve thermal conductivity factor, part aluminium alloy, under the target improving thermal conductivity factor, needs to add relatively costly
Raw material, leads to manufacturing cost higher.
Therefore, not enough for prior art, the pack alloy that a kind of low cost, thermal conductivity factor are more than 170W/m.K is provided
And its preparation technology is to overcome prior art deficiency very necessary.
Content of the invention
It is an object of the invention to providing a kind of high heat conduction aluminium alloy and its preparation in place of avoiding the deficiencies in the prior art
Method, the thermal conductivity factor of pack alloy is more than 170W/m.K, and low production cost, decay resistance be good, mechanical performance is good
Good.
The above-mentioned purpose of the present invention is realized by following technological means.
A kind of high heat conduction aluminium alloy is provided, composed of the following components by weight percentage：Silicon 8.5～10.5%；Magnesium 0.3～
0.5%；Manganese 0.15；Copper 0.025；Iron 0.1～0.3%；Boron 0.03～0.06%；Titanium 0.01～0.02%；Zirconium 0.01～
0.02%；Total impurities ＜ 0.15%；Zinc ＜ 0.3% in impurity；Other single impurity ＜ 0.05%, remaining is aluminium.
Present invention simultaneously provides the preparation method of above-mentioned high heat conduction aluminium alloy, comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(4) add iron melting, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 690
℃-710℃；
(7) stirring aluminum alloy melt makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
Preferably, above-mentioned steps (7) stirring aluminum alloy melt 5-10 minute makes composition uniform.
Preferably, the preparation method of above-mentioned high heat conduction aluminium alloy, comprises the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 725 DEG C -735 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(4) add iron melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 695
℃-706℃；
(7) stirring aluminum alloy melt 6-8 minute makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
Another preferably, the preparation method of above-mentioned high heat conduction aluminium alloy, comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 727 DEG C -730 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 728 DEG C -730 DEG C；
(4) add iron melting, after melting, maintain the temperature at 728 DEG C -730 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 728 DEG C -730 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 697
℃-703℃；
(7) stirring aluminum alloy melt makes composition uniformly for 7 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
Another preferably, the preparation method of above-mentioned high heat conduction aluminium alloy, comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 729 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 728.5 DEG C；
(4) add iron melting, after melting, maintain the temperature at 728.5 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 728.5 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 702
℃；
(7) stirring aluminum alloy melt makes composition uniformly for 7 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
Another preferably, the preparation method of above-mentioned high heat conduction aluminium alloy, comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 731 DEG C -738 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 733 DEG C -739 DEG C；
(4) add iron melting, after melting, maintain the temperature at 733 DEG C -739 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 708
℃-709℃；
(7) stirring aluminum alloy melt 7-8 minute makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
Another preferably, the preparation method of above-mentioned high heat conduction aluminium alloy, comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 733 DEG C -737 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 734 DEG C -737 DEG C；
(4) add iron melting, after melting, maintain the temperature at 734 DEG C -737 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 734 DEG C -737 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 708
℃-709℃；
(7) stirring aluminum alloy melt 7-8 minute makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
Another preferably, the preparation method of above-mentioned high heat conduction aluminium alloy, comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 735 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 736 DEG C；
(4) add iron melting, after melting, maintain the temperature at 736 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 737 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, maintain the temperature at after melting
708.5℃；
(7) stirring aluminum alloy melt makes composition uniformly for 7.5 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
Another preferably, the preparation method of above-mentioned high heat conduction aluminium alloy, comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 736 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 737 DEG C；
(4) add iron melting, after melting, maintain the temperature at 737 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 736.5 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 709
℃；
(7) stirring aluminum alloy melt makes composition uniformly for 7 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
Present invention advantage compared with prior art is：The high heat conduction aluminium alloy thermal conductivity factor of the present invention is more than 170W/
M.K, the advantages of the cost of raw material is low and die casting performance, corrosion resistance good, and machining property is good, can be widely used for electricity
Son, electrically, communication, electromechanical industries；Can effectively solving electronics, electrically, communication, electromechanical industries exist much work when because of first device
Part etc. generates heat and affects the phenomenon of work, has good effect to reducing production cost.
Specific embodiment
The invention will be further described with the following Examples.
Embodiment 1.
A kind of high heat conduction aluminium alloy of low cost is provided, composed of the following components by weight percentage：Silicon 8.5～
10.5%；Magnesium 0.3～0.5%；Manganese 0.15；Copper 0.025；Iron 0.1～0.3%；Boron 0.03～0.06%；Titanium 0.01～
0.02%；Zirconium 0.01～0.02%；Total impurities ＜ 0.15%；Zinc ＜ 0.3% in impurity；Other single impurity ＜ 0.05%,
Remaining is aluminium.
The preparation method of above-mentioned high heat conduction aluminium alloy, comprises the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(4) add iron melting, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 690
℃-710℃；
(7) stirring aluminum alloy melt 5-10 minute makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
The high heat conduction aluminium alloy thermal conductivity factor of the present invention is more than 170W/m.K, and the cost of raw material is low, overall low production cost
And die casting performance, corrosion resistance are good, and the advantages of machining property is good, can be widely used for electronics, electrically, communication, machine
Electric industry；Can effectively solving electronics, electrically, communication, electromechanical industries exist much work when affect because of the heating such as components and parts
The phenomenon of work, has good effect to reducing production cost.
Embodiment 2.
There is provided a kind of high heat conduction aluminium alloy of low cost, further feature is same as Example 1, and difference is, passes through
Prepared by following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 725 DEG C -735 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(4) add iron melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 695
℃-706℃；
(7) stirring aluminum alloy melt 6-8 minute makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
High heat conduction aluminium alloy thermal conductivity factor prepared by this technique is more than 172W/m.K, and the cost of raw material is low, overall production
The advantages of low cost and die casting performance, corrosion resistance are good, and machining property is good, can be widely used for electronics, electric, logical
News, electromechanical industries；Can effectively solving electronics, electrically, communication, electromechanical industries exist much work when because of the heating such as components and parts
The phenomenon of impact work, has good effect to reducing production cost.
Embodiment 3.
There is provided a kind of high heat conduction aluminium alloy of low cost, further feature is same as Example 2, and difference is, passes through
Prepared by following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 727 DEG C -730 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 728 DEG C -730 DEG C；
(4) add iron melting, after melting, maintain the temperature at 728 DEG C -730 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 728 DEG C -730 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 697
℃-703℃；
(7) stirring aluminum alloy melt makes composition uniformly for 7 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
High heat conduction aluminium alloy thermal conductivity factor prepared by this technique is more than 175W/m.K, and the cost of raw material is low, overall production
The advantages of low cost and die casting performance, corrosion resistance are good, and machining property is good, can be widely used for electronics, electric, logical
News, electromechanical industries；Can effectively solving electronics, electrically, communication, electromechanical industries exist much work when because of the heating such as components and parts
The phenomenon of impact work, has good effect to reducing production cost.
Embodiment 4.
There is provided a kind of high heat conduction aluminium alloy of low cost, further feature is same as Example 3, and difference is, passes through
Prepared by following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 729 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 728.5 DEG C；
(4) add iron melting, after melting, maintain the temperature at 728.5 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 728.5 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 702
℃；
(7) stirring aluminum alloy melt makes composition uniformly for 7 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
High heat conduction aluminium alloy thermal conductivity factor prepared by this technique is more than 178W/m.K, and the cost of raw material is low, overall production
The advantages of low cost and die casting performance, corrosion resistance are good, and machining property is good, the more other technological parameter of overall performance
More excellent, particularly in terms of the uniformity of product, performance is more excellent, is suitable for preparing on a large scale.
Embodiment 5.
There is provided a kind of high heat conduction aluminium alloy of low cost, further feature is same as Example 3, and difference is, passes through
Prepared by following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 731 DEG C -738 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 733 DEG C -739 DEG C；
(4) add iron melting, after melting, maintain the temperature at 733 DEG C -739 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 708
℃-709℃；
(7) stirring aluminum alloy melt 7-8 minute makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
High heat conduction aluminium alloy thermal conductivity factor prepared by this technique is more than 175W/m.K, and the cost of raw material is low, overall production
The advantages of low cost and die casting performance, corrosion resistance are good, and machining property is good, can be widely used for electronics, electric, logical
News, electromechanical industries；Can effectively solving electronics, electrically, communication, electromechanical industries exist much work when because of the heating such as components and parts
The phenomenon of impact work, has good effect to reducing production cost.
Embodiment 6.
There is provided a kind of high heat conduction aluminium alloy of low cost, further feature is same as Example 5, and difference is, passes through
Prepared by following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 733 DEG C -737 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 734 DEG C -737 DEG C；
(4) add iron melting, after melting, maintain the temperature at 734 DEG C -737 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 734 DEG C -737 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 708
℃-709℃；
(7) stirring aluminum alloy melt 7-8 minute makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
High heat conduction aluminium alloy thermal conductivity factor prepared by this technique is more than 176W/m.K, and the cost of raw material is low, overall production
The advantages of low cost and die casting performance, corrosion resistance are good, and machining property is good, can be widely used for electronics, electric, logical
News, electromechanical industries；Can effectively solving electronics, electrically, communication, electromechanical industries exist much work when because of the heating such as components and parts
The phenomenon of impact work, has good effect to reducing production cost.
Embodiment 7.
There is provided a kind of high heat conduction aluminium alloy of low cost, further feature is same as Example 5, and difference is, passes through
Prepared by following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 735 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 736 DEG C；
(4) add iron melting, after melting, maintain the temperature at 736 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 737 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, maintain the temperature at after melting
708.5℃；
(7) stirring aluminum alloy melt makes composition uniformly for 7.5 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
High heat conduction aluminium alloy thermal conductivity factor prepared by this technique is more than 180W/m.K, and the cost of raw material is low, overall production
The advantages of low cost and die casting performance, corrosion resistance are good, and machining property is good, the more other technological parameter of overall performance
More excellent, particularly in terms of the die casting performance of product, corrosion resistance, performance is more excellent.
Embodiment 8.
There is provided a kind of high heat conduction aluminium alloy of low cost, further feature is same as Example 5, and difference is, passes through
Prepared by following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 736 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 737 DEG C；
(4) add iron melting, after melting, maintain the temperature at 737 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 736.5 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 709
℃；
(7) stirring aluminum alloy melt makes composition uniformly for 7 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until having refined
Finish.
High heat conduction aluminium alloy thermal conductivity factor prepared by this technique is more than 180W/m.K, and the cost of raw material is low, overall production
The advantages of low cost and die casting performance, corrosion resistance are good, and machining property is good, the more other technological parameter of overall performance
More excellent, particularly more excellent in terms of the machining property of product.
Finally it should be noted that above example only in order to illustrate technical scheme rather than to the present invention protect
The restriction of scope, although being explained in detail to the present invention with reference to preferred embodiment, those of ordinary skill in the art should manage
Solution, technical scheme can be modified or equivalent, without deviating from technical solution of the present invention essence and
Scope.
Claims (10)
1. a kind of high heat conduction aluminium alloy is it is characterised in that composed of the following components by weight percentage：Silicon 8.5～10.5%；Magnesium
0.3～0.5%；Manganese 0.15；Copper 0.025；Iron 0.1～0.3%；Boron 0.03～0.06%；Titanium 0.01～0.02%；Zirconium
0.01～0.02%；Total impurities ＜ 0.15%；Zinc ＜ 0.3% in impurity；Other single impurity ＜ 0.05%, remaining is aluminium.
2. the preparation method of high heat conduction aluminium alloy as claimed in claim 1 is it is characterised in that comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(4) add iron melting, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 720 DEG C -740 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, maintain the temperature at after melting 690 DEG C-
710℃；
(7) stirring aluminum alloy melt makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until refining finishes.
3. the preparation method of high heat conduction aluminium alloy according to claim 2 is it is characterised in that described step (7) stirs aluminium
Aluminium alloy 5-10 minute makes composition uniform.
4. the preparation method of high heat conduction aluminium alloy as claimed in claim 3 is it is characterised in that comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 725 DEG C -735 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(4) add iron melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, maintain the temperature at after melting 695 DEG C-
706℃；
(7) stirring aluminum alloy melt 6-8 minute makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until refining finishes.
5. the preparation method of high heat conduction aluminium alloy as claimed in claim 3 is it is characterised in that comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 727 DEG C -730 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 728 DEG C -730 DEG C；
(4) add iron melting, after melting, maintain the temperature at 728 DEG C -730 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 728 DEG C -730 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, maintain the temperature at after melting 697 DEG C-
703℃；
(7) stirring aluminum alloy melt makes composition uniformly for 7 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until refining finishes.
6. the preparation method of high heat conduction aluminium alloy as claimed in claim 5 is it is characterised in that comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 729 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 728.5 DEG C；
(4) add iron melting, after melting, maintain the temperature at 728.5 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 728.5 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 702 DEG C；
(7) stirring aluminum alloy melt makes composition uniformly for 7 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until refining finishes.
7. the preparation method of high heat conduction aluminium alloy as claimed in claim 3 is it is characterised in that comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 731 DEG C -738 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 733 DEG C -739 DEG C；
(4) add iron melting, after melting, maintain the temperature at 733 DEG C -739 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 725 DEG C -738 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, maintain the temperature at after melting 708 DEG C-
709℃；
(7) stirring aluminum alloy melt 7-8 minute makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until refining finishes.
8. the preparation method of high heat conduction aluminium alloy as claimed in claim 7 is it is characterised in that comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 733 DEG C -737 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 734 DEG C -737 DEG C；
(4) add iron melting, after melting, maintain the temperature at 734 DEG C -737 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 734 DEG C -737 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, maintain the temperature at after melting 708 DEG C-
709℃；
(7) stirring aluminum alloy melt 7-8 minute makes composition uniformly and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until refining finishes.
9. the preparation method of high heat conduction aluminium alloy as claimed in claim 8 is it is characterised in that comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 735 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 736 DEG C；
(4) add iron melting, after melting, maintain the temperature at 736 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 737 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 708.5
℃；
(7) stirring aluminum alloy melt makes composition uniformly for 7.5 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until refining finishes.
10. the preparation method of high heat conduction aluminium alloy as claimed in claim 8 is it is characterised in that comprise the following steps：
(1) burdening calculation；
(2) fine aluminium melting is added in a furnace according to the dispensing calculating, after melting, maintain the temperature at 736 DEG C；
(3) add silicon melting, after melting, maintain the temperature at 737 DEG C；
(4) add iron melting, after melting, maintain the temperature at 737 DEG C；
(5) add magnesium melting, after melting, maintain the temperature at 736.5 DEG C；
(6) add aluminium zirconium hardener, aluminium titanium intermediate alloy, aluminium boron intermediate alloy melting, after melting, maintain the temperature at 709 DEG C；
(7) stirring aluminum alloy melt makes composition uniformly for 7 minutes and then slagging-off, sample examination；
(8) each element component content is adjusted according to result of laboratory test until reaching the scope of requirement；
(9) refine degasification：Refining agent is blown into aluminum alloy melt bottom by nitrogen carry out refining degasification, until refining finishes.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115595476A (en) * | 2022-10-27 | 2023-01-13 | 江西万泰铝业有限公司（Cn） | High-thermal-conductivity aluminum alloy for 5G communication equipment and preparation method thereof |
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| CN105483465A (en) * | 2015-12-21 | 2016-04-13 | 河北立中有色金属集团有限公司 | Al-Si-Mg cast aluminium alloy for pressure casting, and preparation method thereof |
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| US20120027639A1 (en) * | 2010-07-29 | 2012-02-02 | Gibbs Die Casting Corporation | Aluminum alloy for die casting |
| EP2455505A1 (en) * | 2010-11-19 | 2012-05-23 | Martinrea Honsel Germany GmbH | Cylinder head for combustion engines made of an aluminium alloy |
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