CN109487125A - One kind having high-strength corrosion-resisting aluminium-alloy pipe formula and preparation method thereof - Google Patents
One kind having high-strength corrosion-resisting aluminium-alloy pipe formula and preparation method thereof Download PDFInfo
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- CN109487125A CN109487125A CN201811531511.0A CN201811531511A CN109487125A CN 109487125 A CN109487125 A CN 109487125A CN 201811531511 A CN201811531511 A CN 201811531511A CN 109487125 A CN109487125 A CN 109487125A
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- aluminium
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- resisting aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
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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
- C22C1/026—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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- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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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
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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
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
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- Engineering & Computer Science (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Extrusion Of Metal (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses one kind to have high-strength corrosion-resisting aluminium-alloy pipe formula, it is characterized in that, by mass percentage are as follows: Si :≤0.2%, Fe≤0.15%~0.4%, Cu≤0.2%~0.4%, Mn:1.0%~1.5%, Mg:0.9%~1.2%, Zn≤0.05%, Ti:0.01%~0.05%, other elements≤0.05%, surplus is Al, while open preparation method；The present invention improves its total mechanical strength, refining refiner material grain structure by elements such as middle on the basis of original 3XXX series alloys addition Cu, Mg, improves material corrosion resistance.The plasticity of material is high, and welding performance is good, and the tensile strength of squeezed state is up to 200Mpa or more, and yield strength is up to 90 or more.
Description
Technical field
The present invention relates to one kind to have high-strength corrosion-resisting aluminium-alloy pipe formula and preparation method thereof.
Background technique
3XXX series alloys are AL-Mn system alloy, are a kind of most widely used rustproof aluminum alloys, the intensity of this alloy is not
Height, the tensile strength of hot extrusion pressure condition only have 110Mpa or so, and yield strength only has 50Mpa or so, are unable to heat treatment reinforcement,
Therefore its mechanical property is improved using Cold-forming process: having very high plasticity in annealed condition, the plasticity in half flow harden
Fair, plasticity is low when flow harden, and corrosion-resistant good, weldability is good, and machinability is bad.
Summary of the invention
It is undesirable scarce that the technical problem to be solved by the present invention is to overcome 3XXX series alloys cutting abilities in the prior art
It falls into, provides a kind of with high-strength corrosion-resisting aluminium-alloy pipe formula and preparation method thereof.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
1, a kind of that there is high-strength corrosion-resisting aluminium-alloy pipe formula, which is characterized in that by mass percentage are as follows: Si :≤
0.2%, Fe≤0.15%~0.4%, Cu≤0.2%~0.4%, Mn:1.0%~1.5%, Mg:0.9%~1.2%, Zn≤
0.05%, Ti:0.01%~0.05%, other elements≤0.05%, surplus Al.
2, the preparation method described in claim 1 with high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that including with
Lower step:
1) it, melts: aluminium ingot being put into furnace and is heated up to 720~760 DEG C of fusings；
2) it, skims: slagging agent being uniformly spilled into furnace at 740 ± 20 DEG C and be sufficiently stirred 5-10 minutes, use rake
Molten aluminum surface scum is removed；
3), gold conjugate: iron, copper, manganese are added at 740~760 DEG C, is added later at 720~750 DEG C of melt temperature
Magnesium, being added after alloy stir mixes each uniform ingredients in melt；
4) it, refines: using argon gas injection refining at 720-740 DEG C of melt temperature, it is desirable that use high-purity argon gas, argon content
99.7% or more, refining time is 45 minutes, removes liquid level dross after having refined；
5), stand: melt stands 20~30 minutes after refining；
6), cast: it is spare that melt temperature is cast into ingot casting when being 710~740 DEG C, and Al5Ti1B aluminium is added in casting process
For titanium boron line to ingot casting crystal grain refinement, addition speed is 2m/min-3m/min, is refined online on casting chute, and when refining is passed through
High-purity argon gas, 99.7% or more argon content, melt filtration obtains ingot casting；
7), homogenize: ingot casting derived above being warmed to 590~605 DEG C, keeps the temperature 8 hours, subsequently into cooling chamber into
Row misting cooling obtains ingot casting after homogeneous；
8), squeeze: extrusion die is heated, 470 DEG C~490 DEG C of heating temperature, ingot casting be heated to 460 DEG C~500 DEG C into
Enter extrusion cylinder extruding, high-strength corrosion-resisting aluminium-alloy pipe needed for squeezing out.
3, as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that described
The aluminium ingot of the AL99.70 trade mark in GB/T 1196-2008 standard is selected in step 1).
4, as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that described
The amount that the additional amount of slagging agent is 0.3KG ± 30g per ton in step 2) is added.
5, as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that described
Iron selects the iron additive containing aluminium of iron content 80% in step 3), and it is 80% aluminium manganese additive that manganese, which selects manganese content, and copper alloy is pressed
The alloy of national non-ferrous metal industry standard YS/T 282-2000 buying copper content 48.0%~52.0%.
6, the preparation method as claimed in claim 1 or 5 with high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that
Magnesium ingot selects standard GB/T/T 3499-2003 wherein magnesium >=99.80% in the step 3).
7, as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that described
The Na of injection refining agent: < 0.5% in step 4), dosage is 1.5~2 kgs/tonne of aluminium.
8, as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that described
30PPi and 50PPi double-layer ceramic filter plate solution is used in step 6).
9, as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that described
Extrusion cylinder is preheated to 390 DEG C~440 DEG C in step 8).
The beneficial effects obtained by the present invention are as follows being: the present invention passes through addition middle on the basis of original 3XXX series alloys
The elements such as Cu, Mg improve its total mechanical strength, refining refiner material grain structure, improve material corrosion resistance.Material
The plasticity of material is high, and welding performance is good, the tensile strength of squeezed state up to 200Mpa or more, yield strength up to 90 with
On.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
One kind having high-strength corrosion-resisting aluminium-alloy pipe formula, which is characterized in that by mass percentage are as follows: Si :≤
0.2%, Fe≤0.15%, Cu≤0.4%, Mn:1.0%, Mg:0.9%, Zn≤0.05%, Ti:0.01%, other elements≤
0.05%, surplus Al.
A kind of preparation method with high-strength corrosion-resisting aluminium-alloy pipe, comprising the following steps:
1) it, melts: aluminium ingot being put into furnace and is heated up to 720 DEG C of fusings；
2) it, skims: slagging agent being uniformly spilled into furnace at 730 DEG C and be sufficiently stirred 5 minutes, with rake by molten aluminum table
Face dross removes；
3), gold conjugate: iron, copper, manganese being added at 740 DEG C, and magnesium is added at 720 DEG C of melt temperature later, and alloy is added
Stirring afterwards makes each uniform ingredients mixing in melt for 10 minutes；
4) it, refines: using argon gas injection refining at 720 DEG C of melt temperature, it is desirable that use high-purity argon gas, argon content
99.7% or more, refining time is 45 minutes, removes liquid level dross after having refined；
5), stand: melt stands 20 minutes after refining；
6), cast: it is spare that melt temperature is cast into ingot casting when being 710 DEG C, and Al5Ti1B aluminium titanium boron line is added in casting process
To ingot casting crystal grain refinement, addition speed is 2m/min, is refined online on casting chute, and when refining is passed through high-purity argon gas, argon gas
99.7% or more content, melt filtration obtains ingot casting；
7) it, homogenizes: ingot casting derived above being warmed to 590 DEG C, 8 hours is kept the temperature, is sprayed subsequently into cooling chamber
Mist is cooling, obtains ingot casting after homogeneous；
8) it, squeezes: extrusion die being heated, 470 DEG C of heating temperature, ingot casting is heated to 460 DEG C and enters extrusion cylinder extruding, squeezes
Required high-strength corrosion-resisting aluminium-alloy pipe out.
Embodiment 2
One kind have high-strength corrosion-resisting aluminium-alloy pipe formula, by mass percentage are as follows: Si :≤0.2%, Fe≤0.4%,
Cu≤0.2%, Mn:1.5%, Mg:1.2%, Zn≤0.05%, Ti:0.05%, other elements≤0.05%, surplus Al.
A kind of preparation method with high-strength corrosion-resisting aluminium-alloy pipe, comprising the following steps:
1) it, melts: aluminium ingot being put into furnace and is heated up to 760 DEG C of fusings；
2) it, skims: slagging agent being uniformly spilled into furnace at 740 DEG C and be sufficiently stirred 8 minutes, with rake by molten aluminum table
Face dross removes；
3), gold conjugate: iron, copper, manganese being added at 760 DEG C, and magnesium is added at 750 DEG C of melt temperature later, and alloy is added
Stirring afterwards makes each uniform ingredients mixing in melt for 10 minutes；
4) it, refines: using argon gas injection refining at 740 DEG C of melt temperature, it is desirable that use high-purity argon gas, argon content
99.7% or more, refining time is 45 minutes, removes liquid level dross after having refined；
5), stand: melt stands 30 minutes after refining；
6), cast: it is spare that melt temperature is cast into ingot casting when being 740 DEG C, and Al5Ti1B aluminium titanium boron line is added in casting process
To ingot casting crystal grain refinement, addition speed is 2.5m/min, is refined online on casting chute, and when refining is passed through high-purity argon gas, argon
99.7% or more Gas content, melt filtration obtains ingot casting；
7) it, homogenizes: ingot casting derived above being warmed to 605 DEG C, 8 hours is kept the temperature, is sprayed subsequently into cooling chamber
Mist is cooling, obtains ingot casting after homogeneous；
8) it, squeezes: extrusion die being heated, 490 DEG C of heating temperature, ingot casting is heated to 500 DEG C and enters extrusion cylinder extruding, squeezes
Required high-strength corrosion-resisting aluminium-alloy pipe out.
Embodiment 3
One kind have high-strength corrosion-resisting aluminium-alloy pipe formula, by mass percentage are as follows: Si :≤0.2%, Fe≤0.3%,
Cu≤0.3%, Mn:1.2%, Mg:1.0%, Zn≤0.05%, Ti:0.03%, other elements≤0.05%, surplus Al.
A kind of preparation method with high-strength corrosion-resisting aluminium-alloy pipe, comprising the following steps:
1) it, melts: aluminium ingot being put into furnace and is heated up to 740 DEG C of fusings；
2) it, skims: slagging agent being uniformly spilled into furnace at 720 DEG C and be sufficiently stirred 10 minutes, with rake by molten aluminum
Surface scum removes；
3), gold conjugate: iron, copper, manganese being added at 750 DEG C, and magnesium is added at 730 DEG C of melt temperature later, and alloy is added
Stirring afterwards makes each uniform ingredients mixing in melt for 10 minutes；
4) it, refines: using argon gas injection refining at 730 DEG C of melt temperature, it is desirable that use high-purity argon gas, argon content
99.7% or more, refining time is 45 minutes, removes liquid level dross after having refined；
5), stand: melt stands 25 minutes after refining；
6), cast: it is spare that melt temperature is cast into ingot casting when being 720 DEG C, and Al5Ti1B aluminium titanium boron line is added in casting process
To ingot casting crystal grain refinement, addition speed is 2.5m/min, is refined online on casting chute, and when refining is passed through high-purity argon gas, argon
99.7% or more Gas content, melt filtration obtains ingot casting；
7) it, homogenizes: ingot casting derived above being warmed to 600 DEG C, 8 hours is kept the temperature, is sprayed subsequently into cooling chamber
Mist is cooling, obtains ingot casting after homogeneous；
8) it, squeezes: extrusion die being heated, 480 DEG C of heating temperature, ingot casting is heated to 480 DEG C and enters extrusion cylinder extruding, squeezes
Required high-strength corrosion-resisting aluminium-alloy pipe out.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (9)
1. one kind has high-strength corrosion-resisting aluminium-alloy pipe formula, which is characterized in that by mass percentage are as follows: Si :≤0.2%,
Fe≤0.15%~0.4%, Cu≤0.2%~0.4%, Mn:1.0%~1.5%, Mg:0.9%~1.2%, Zn≤
0.05%, Ti:0.01%~0.05%, other elements≤0.05%, surplus Al.
2. the preparation method described in claim 1 with high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that including following step
It is rapid:
1) it, melts: aluminium ingot being put into furnace and is heated up to 720~760 DEG C of fusings；
2) it, skims: slagging agent being uniformly spilled into furnace at 740 ± 20 DEG C and be sufficiently stirred 5-10 minutes, with rake by aluminium
Liquid surface scum removes；
3), gold conjugate: iron, copper, manganese are added at 740~760 DEG C, magnesium is added at 720~750 DEG C of melt temperature later, adds
Enter to stir after alloy and makes within 10~15 minutes each uniform ingredients mixing in melt；
4) it, refines: using argon gas injection refining at 720-740 DEG C of melt temperature, it is desirable that use high-purity argon gas, argon content
99.7% or more, refining time is 45 minutes, removes liquid level dross after having refined；
5), stand: melt stands 20~30 minutes after refining；
6), cast: it is spare that melt temperature is cast into ingot casting when being 710~740 DEG C, and Al5Ti1B aluminium titanium boron is added in casting process
For line to ingot casting crystal grain refinement, addition speed is 2m/min-3m/min, is refined online on casting chute, and when refining is passed through high-purity
Argon gas, 99.7% or more argon content, melt filtration obtains ingot casting；
7) it, homogenizes: ingot casting derived above being warmed to 590~605 DEG C, 8 hours is kept the temperature, is sprayed subsequently into cooling chamber
Mist is cooling, obtains ingot casting after homogeneous；
8) it, squeezes: extrusion die being heated, 470 DEG C~490 DEG C of heating temperature, ingot casting is heated to 460 DEG C~500 DEG C entrance and squeezes
Pressure cylinder squeezes, high-strength corrosion-resisting aluminium-alloy pipe needed for squeezing out.
3. as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that the step
1) aluminium ingot of the AL99.70 trade mark in GB/T 1196-2008 standard is selected in.
4. as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that the step
2) amount that the additional amount of slagging agent is 0.3KG ± 30g per ton in is added.
5. as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that the step
3) iron selects the iron additive containing aluminium of iron content 80% in, and it is 80% aluminium manganese additive that manganese, which selects manganese content, and copper alloy is by country
The alloy of non-ferrous metal industry standard YS/T 282-2000 buying copper content 48.0%~52.0%.
6. the preparation method as claimed in claim 1 or 5 with high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that described
Magnesium ingot selects standard GB/T/T 3499-2003 wherein magnesium >=99.80% in step 3).
7. as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that the step
4) Na of injection refining agent: < 0.5% in, dosage is 1.5~2 kgs/tonne of aluminium.
8. as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that the step
6) 30PPi and 50PPi double-layer ceramic filter plate solution is used in.
9. as described in claim 1 with the preparation method of high-strength corrosion-resisting aluminium-alloy pipe, which is characterized in that the step
8) extrusion cylinder is preheated to 390 DEG C~440 DEG C in.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811531511.0A CN109487125A (en) | 2018-12-14 | 2018-12-14 | One kind having high-strength corrosion-resisting aluminium-alloy pipe formula and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811531511.0A CN109487125A (en) | 2018-12-14 | 2018-12-14 | One kind having high-strength corrosion-resisting aluminium-alloy pipe formula and preparation method thereof |
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| CN109487125A true CN109487125A (en) | 2019-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112680613A (en) * | 2021-01-07 | 2021-04-20 | 安徽鑫发铝业有限公司 | Production method of corrosion-resistant aluminum frame for LED electronic screen |
-
2018
- 2018-12-14 CN CN201811531511.0A patent/CN109487125A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112680613A (en) * | 2021-01-07 | 2021-04-20 | 安徽鑫发铝业有限公司 | Production method of corrosion-resistant aluminum frame for LED electronic screen |
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Application publication date: 20190319 |