CN110257677A - A kind of novel high thermal conductivity Al-Mg-Si alloy - Google Patents
A kind of novel high thermal conductivity Al-Mg-Si alloy Download PDFInfo
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- CN110257677A CN110257677A CN201910667939.6A CN201910667939A CN110257677A CN 110257677 A CN110257677 A CN 110257677A CN 201910667939 A CN201910667939 A CN 201910667939A CN 110257677 A CN110257677 A CN 110257677A
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- alloy
- thermal conductivity
- high thermal
- novel high
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
Abstract
The present invention discloses a kind of novel high thermal conductivity Al-Mg-Si alloy, it includes each component of following weight degree: Si 0.33~0.37%, Mg 0.52~0.56%, Impurity Fe≤0.15%, Cu≤0.01%, Zn≤0.05%, surplus are Al and other inevitable impurity elements；The mass percent of the total component of other inevitable impurity element total amount Zhan is≤0.03%.The novel high thermal conductivity Al-Mg-Si alloy component, further includes the B element for controlling V, Ti constituent content in alloy, and the 0.01~0.03% of the quality percentage of the total component of additional amount Zhan.It is≤0.002% that the content of V, Ti, which are controlled as the percentage of the total constituent mass of Zhan,.The present invention is the customized conductor material of bus duct, and conductivity, thermally conductive, tensile property etc. are above the national standard of T2 copper conductor, and its partial parameters technical performance reaches world lead level, and cost performance is high, has good application and economic value.
Description
Technical field
The present invention relates to a kind of novel high thermal conductivity Al-Mg-Si alloys.
Technical background
Country low voltage bus bar groove market reaches its maturity and standardizes at present, and competition exceedes plus fierceness, in the large-scale weight of some countries
In point engineering project, demand to product is in addition to requiring product specification high outer, there are also prior demand factor, including energy saving,
Electrical Safety is reliable etc..But the current country has the bus duct manufacturing enterprise of high conductance energy conservation class almost without even if having
It is only capable of reaching international standards: the part busway product produced such as Schneider company.
In general, the incorporation of alloying element can cause aluminium alloy impurity defect, move to free electron and generate resistance, meeting
Reduce the thermal conductivity in alloy.Si and Mg is the essential element in Al-Mg-Si system alloy.Studies have shown that is smaller when Mg content
When, the thermal conductivity of alloy is higher and intensity is slightly lower, and when Mg/Si mass is bigger, excessive Mg can not only weaken Mg2Si effect,
And can be added in aluminum substrate, decline the thermal conductivity of alloy.When alloying element is become being dissolved state from precipitation state, thermal conductivity can be caused
Rate becomes smaller.And when Si excess quantity is more, superfluous Si is solid-solution in aluminum substrate, is easy and Fe forms Al9Fe2Si phase, thermal conductivity
It reduces.There is studies have shown that addition rare earth that alloy thermal conductivity can be made to improve again, and rare earth content adds less or adds will lead to alloy
Conductivity decline.It is therefore desirable to be researched and developed for the novel high conductivity conductor material of bus duct, to meet the country
The high demand of client.
Summary of the invention
For above-mentioned current domestic bus duct conductor materials demand situation, the present invention provides a kind of novel high thermal conductivity Al-
Mg-Si alloy is the customized conductor material of bus duct, and conductivity, thermally conductive, tensile property etc. are above the state of T2 copper conductor
Family's standard, and its partial parameters technical performance reaches world lead level.Specific technical solution is as follows:
A kind of novel high thermal conductivity Al-Mg-Si alloy comprising each component of following weight degree: Si 0.33~
0.37%, 0.52~0.56% Mg, Impurity Fe≤0.15%, Cu≤0.01%, Zn≤0.05%, surplus be Al and it is other can not
The impurity element avoided.
Novel high thermal conductivity Al-Mg-Si alloy above-mentioned, other inevitable impurity include Cr, Mn, V and/or Ti
Element, the mass percent of the total component of other inevitable impurity element total amount Zhan are≤0.03.Preferably, described
The mass percent of the total component of quality summation Zhan of two kinds of elements of Cr, Mn is≤0.005%.
Novel high thermal conductivity Al-Mg-Si alloy above-mentioned, further includes the B element for controlling V, Ti constituent content in alloy.
Preferably, the 0.01~0.03% of the quality percentage of the total component of additional amount Zhan of the B element.Preferably, the content of described V, Ti
Control is that the percentage of the total constituent mass of its quality summation Zhan is≤0.002%.
Novel high thermal conductivity Al-Mg-Si alloy above-mentioned, more specifically several formulas are as follows: by weight percentage:
It is formulated 1:Si 0.33~0.37%, Mg 0.52~0.56%, Fe 0.12%, Cr and/or Mn 0.005%, V and/or Ti
0.02%, Cu 0.01%, Zn 0.05%, B 0.03%, surplus are Al and other inevitable impurity elements.
It is formulated 2:Si 0.35%, Mg 0.55%, Fe 0.12%, Cr and/or Mn 0.005%, V and/or Ti 0.02%, Cu
0.01%, Zn 0.05%, B 0.03%, surplus are Al and other inevitable impurity elements.
Be formulated 3:Si 0.35%, Mg 0.56%, Fe 0.08%, Cr and/or Mn≤0.004%, Ti 0.01%, Cu≤
0.001%, Zn 0.04%, B 0.011%, surplus are Al and other inevitable impurity elements.
Novel high thermal conductivity Al-Mg-Si alloy above-mentioned, the tensile strength of the novel high thermal conductivity Al-Mg-Si alloy >=
215MPa, 20 DEG C of conductivity >=56.6%IACS, webster hardness >=11,20 DEG C thermal coefficient >=220W/mK.
The beneficial effects of the present invention are:
The present invention is the customized conductor material of bus duct, and conductivity, thermally conductive, tensile property etc. are above the state of T2 copper conductor
Family's standard, and its partial parameters technical performance reaches world lead level, and cost performance is high, has good application and economic valence
Value.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment, to skill of the invention
Art scheme is clearly and completely described.
Embodiment 1
A kind of novel high thermal conductivity Al-Mg-Si alloy, component be respectively as follows: by weight percentage Si 0.33%, Mg 0.52%,
Fe 0.15%, Cr and/or Mn 0.005%, V and/or Ti 0.02%, Cu 0.01%, Zn 0.05%, B 0.03%, surplus be Al and
Other inevitable impurity elements, other inevitable impurity element≤0.03%.Firstly, pressing above-mentioned matter in smelting furnace
It measures percentage and aluminium ingot and alusil alloy is added, be heated to 700 DEG C of meltings, and deslagging agent is added and carries out deslagging agent；After slagging-off
Molten aluminum is heated to 780 DEG C, and the other components in addition to aluminium are added in smelting furnace by above-mentioned percentage, continue to stir aluminium alloy 5
Minute；Then, then by aluminium alloy temperature control at 740 DEG C, fining agent is added and refining agent carries out refining treatment；After refining
Aluminium alloy is stood 15 minutes, is removed the gred using inert gas deaeration at 680 DEG C, is being carried out stokehold constituent analysis, is being carried out after qualified
Die casting obtains novel high thermal conductivity Al-Mg-Si alloy.
After the completion of die casting processing, the novel high thermal conductivity Al-Mg-Si alloy of acquisition is subjected to heat-conductive characteristic inspection, tension
Intensity is 215MPa, 20 DEG C of conductivity 57.4%IACS, 11,20 DEG C of webster hardness position thermal coefficient 222.1W/mK.
Embodiment 2
A kind of novel high thermal conductivity Al-Mg-Si alloy, component be respectively as follows: by weight percentage Si 0.35%, Mg 0.55%,
Fe 0.12%, Cr and/or Mn 0.005%, V and/or Ti 0.02%, Cu 0.01%, Zn 0.05%, B 0.03%, surplus be Al and
Other inevitable impurity elements, other inevitable impurity element≤0.03%.Firstly, pressing above-mentioned matter in smelting furnace
It measures percentage and aluminium ingot and alusil alloy is added, be heated to 750 DEG C of meltings, and deslagging agent is added and carries out deslagging agent；After slagging-off
Molten aluminum is heated to 800 DEG C, and the other components in addition to aluminium are added in smelting furnace by above-mentioned percentage, continue to stir aluminium alloy 8
Minute；Then, then by aluminium alloy temperature control at 720 DEG C, fining agent is added and refining agent carries out refining treatment；After refining
Aluminium alloy is stood 15 minutes, is removed the gred using inert gas deaeration at 700 DEG C, is being carried out stokehold constituent analysis, is being carried out after qualified
Die casting obtains novel high thermal conductivity Al-Mg-Si alloy.
After the completion of die casting processing, the novel high thermal conductivity Al-Mg-Si alloy of acquisition is subjected to heat-conductive characteristic inspection, tension
Intensity is 230MPa, 20 DEG C of conductivity 56.9%IACS, 12,20 DEG C of webster hardness position thermal coefficient 220.2W/mK.
Embodiment 3
A kind of novel high thermal conductivity Al-Mg-Si alloy, component be respectively as follows: by weight percentage Si 0.35%, Mg 0.56%,
Fe 0.08%, Cr and/or Mn≤0.004%, Ti 0.01%, Cu≤0.001%, Zn 0.04%, B 0.02%, surplus be Al and
Other inevitable impurity elements, other inevitable impurity element≤0.03%.Firstly, pressing above-mentioned matter in smelting furnace
It measures percentage and aluminium ingot and alusil alloy is added, be heated to 760 DEG C of meltings, and deslagging agent is added and carries out deslagging agent；After slagging-off
Molten aluminum is heated to 780 DEG C, and the other components in addition to aluminium are added in smelting furnace by above-mentioned percentage, continue to stir aluminium alloy 10
Minute；Then, then by aluminium alloy temperature control at 710 DEG C, fining agent is added and refining agent carries out refining treatment；After refining
Aluminium alloy is stood 20 minutes, is removed the gred using inert gas deaeration at 710 DEG C, is being carried out stokehold constituent analysis, is being carried out after qualified
Die casting obtains novel high thermal conductivity Al-Mg-Si alloy.
After the completion of die casting processing, the novel high thermal conductivity Al-Mg-Si alloy of acquisition is subjected to heat-conductive characteristic inspection, tension
Intensity is 230MPa, 20 DEG C of conductivity 56.6%IACS, 13,20 DEG C of webster hardness position thermal coefficient 220.1W/mK.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive.Although in addition, it should be understood that originally
Specification is described in terms of embodiments, but only includes not one technical solution, and this narrating mode of specification is only
It is only for clarity that the skilled in the art should refer to the specification as a whole, the technical solution in embodiment can also
To be properly combined, form other embodiments that can be understood by those skilled in the art.
Claims (10)
1. a kind of novel high thermal conductivity Al-Mg-Si alloy, it is characterised in that: it includes each component of following weight degree:
Si 0.33~0.37%, Mg 0.52~0.56%, Impurity Fe≤0.15%, Cu≤0.01%, Zn≤0.05%, surplus are
Al and other inevitable impurity elements.
2. novel high thermal conductivity Al-Mg-Si alloy according to claim 1, it is characterised in that: described other inevitable
Impurity includes Cr, Mn, V and/or Ti element, and the mass percents of other inevitable total components of total amount Zhan is≤
0.03%。
3. novel high thermal conductivity Al-Mg-Si alloy according to claim 2, it is characterised in that: two kinds of elements of described Cr, Mn
The total component of quality summation Zhan mass percent be≤0.005%.
4. novel high thermal conductivity Al-Mg-Si alloy according to claim 1, it is characterised in that: further include for controlling alloy
The B element of middle V, Ti constituent content.
5. novel high thermal conductivity Al-Mg-Si alloy according to claim 4, it is characterised in that: the additional amount of the B element
The 0.01~0.03% of the quality percentage of the total component of Zhan.
6. novel high thermal conductivity Al-Mg-Si alloy according to claim 4, it is characterised in that: the content of described V, Ti control
Percentage for the total constituent mass of its quality summation Zhan is≤0.002%.
7. a kind of novel high thermal conductivity Al-Mg-Si alloy, it is characterised in that: it includes each component as following weight percent: Si
0.33~0.37%, Mg 0.52~0.56%, Fe 0.12%, Cr and/or Mn 0.005%, V and/or Ti 0.02%, Cu 0.01%,
Zn 0.05%, B 0.03%, surplus are Al and other inevitable impurity elements.
8. a kind of novel high thermal conductivity Al-Mg-Si alloy, it is characterised in that: it includes each component as following weight percent: Si
0.35%, Mg 0.55%, Fe 0.12%, Cr and/or Mn 0.005%, V and/or Ti 0.02%, Cu 0.01%, Zn 0.05%, B
0.03%, surplus is Al and other inevitable impurity elements.
9. a kind of novel high thermal conductivity Al-Mg-Si alloy, it is characterised in that: it includes each component as following weight percent: Si
0.35%, Mg 0.56%, Fe 0.08%, Cr and/or Mn≤0.004%, Ti 0.01%, Cu≤0.001%, Zn 0.04%, B
0.011%, surplus is Al and other inevitable impurity elements.
10. according to claim 1, novel high thermal conductivity Al-Mg-Si alloy described in 7,8,9 any one, it is characterised in that: institute
State tensile strength >=215MPa of novel high thermal conductivity Al-Mg-Si alloy, 20 DEG C of conductivity >=56.6%IACS, webster hardness >=
11,20 DEG C of thermal coefficient >=220W/mK.
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| CN201910667939.6A CN110257677A (en) | 2019-07-23 | 2019-07-23 | A kind of novel high thermal conductivity Al-Mg-Si alloy |
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| CN201910667939.6A CN110257677A (en) | 2019-07-23 | 2019-07-23 | A kind of novel high thermal conductivity Al-Mg-Si alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4134460A1 (en) * | 2021-08-12 | 2023-02-15 | Shanghai XPT Technology Limited | Aluminum alloy with preferred mechanical property and preferred electrical and thermal conductivity and related manufacturing method |
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Application publication date: 20190920 |