CN109112372A - A kind of high-strength abrasion-proof aluminum alloy materials and preparation method thereof - Google Patents
A kind of high-strength abrasion-proof aluminum alloy materials and preparation method thereof Download PDFInfo
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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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
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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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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- 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
- C22F1/057—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 copper as the next major constituent
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Abstract
The invention discloses a kind of high-strength abrasion-proof aluminum alloy materials and preparation method thereof, its ingredient contains by weight percentage: Cu 6.50-10.50%, Zn 2.50-4.50%, Mn 0.21-0.25%, B 0.40-0.60%, Ni 0.34-0.38%, Zr 0.08-0.12%, Ti 0.11-0.15%, Mo 0.02-0.05%, W 0.22-0.26%, rare earth element 0.05-0.09%, and surplus is aluminium and inevitable other impurities.The present invention solves the problems, such as the wearability of aluminum alloy materials and intensity deficiency, enables aluminum alloy to material while having high-intensitive, high abrasion and excellent tensile strength by designing specific alloying component composition.
Description
Technical field
The present invention relates to aluminum alloy processing technology fields, and in particular to a kind of high-strength abrasion-proof aluminum alloy materials and its preparation
Method.
Background technique
The weight of aluminium alloy compared with other alloys for it is smaller, can be widely applied to many industries, especially counterweight
Measure the occasion required.But compared with other alloys, the hardness of aluminium alloy is relatively low, therefore general aluminium alloy is not wear-resisting.By
Not wear-resisting in aluminium alloy, the alloy that weight can only be selected big but wear-resisting in many cases, substitutes aluminium alloy.Not wear-resisting spy
Point greatly limits the application of aluminium alloy.
By being disclosed in Chinese invention patent application 200810231204.0(to by being retrieved to the prior art
Day on December 4th, 2008) disclose a kind of wear-resisting high-strength aluminum alloy material and its manufacturing process.Come by the following technical programs real
Existing: a kind of wear-resisting high-strength aluminum alloy material, the chemical component of the material are calculated with weight, consist of 7.6-8.3%
Silicon, 2.5-3.5% copper, 1.2-1.4% iron, 0.3-0.5% magnesium, 0.1-0.05% rare earth surplus are aluminium.The chemistry of the cylinder block
Ingredient is calculated with weight, and the content of impurity is not more than: 0.3% zinc, 0.2% lead, 0.2% chromium, 0.1% tin, 0.1% nickel, 0.1%
Titanium.Also pass through ingredient, refine, go bad, being poured, quenching, after applying the present invention, due to the internal chemical ingredient and system of material
It makes the variation of technique, improve, make its dense internal organization, good toughness, casting formability, excellent processability, wearability is good, at
This low advantage.
And in Chinese invention patent application 200610165341.X(publication date on December 18th, 2006) disclose it is a kind of high
Strong wear-resistant aluminum alloy and preparation method thereof, the high-strength abrasion-proof aluminum alloy are to be placed in Ti-C- in Al-Zn-Mg-Cu alloy melt
Al prefabricated section generates TiC particle by reaction in-situ in the Al-Zn-Mg-Cu alloy melt, then carries out spray form
It forms, wherein the TiC merging amount of Ti-C-Al prefabricated section is 3.15 ~ 10.5% weight % of Al-Zn-Mg-Cu alloy.Its preparation side
Method is: (1) by Ti powder, it is spare that graphite powder and aluminium powder are pressed into Ti-C-Al prefabricated section；(2) Al-Zn-Mg-Cu alloy is melted；
(3) Ti-C-Al prefabricated section is placed in Al-Zn-Mg-Cu alloy melt, carries out reaction in-situ；(4) spray form is carried out,
Obtain high-strength abrasion-proof aluminum alloy.Aluminium alloy of the invention is to prepare high strength alumin ium alloy using reaction in-situ spray deposition processing, real
The improvement of material wear-resistant performance is showed.The alloy has high intensity and good toughness and wear-resisting property.
The prior art retrieved above, due to the deficiency in the alloying element and preparation process of addition, aluminium alloy obtained
Intensity and wear-resisting property cannot still meet the requirements.
Based on this, it is necessary to a kind of high-strength abrasion-proof aluminum alloy materials and preparation method thereof are provided, to solve the prior art
The problem of.
Summary of the invention
The purpose of the present invention is being directed to problem of the prior art, a kind of high-strength abrasion-proof aluminum alloy materials and its preparation are provided
Method can be improved the intensity, wearability and tensile strength of aluminium alloy.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
A kind of high-strength abrasion-proof aluminum alloy materials, the ingredient of the high intensity high-strength abrasion-proof aluminum alloy materials is by weight percentage
Meter contains: Cu 6.50-10.50%, Zn 2.50-4.50%, Mn 0.21-0.25%, B 0.40-0.60%, Ni 0.34-
0.38%, Zr 0.08-0.12%, Ti 0.11-0.15%, Mo 0.02-0.05%, W 0.22-0.26%, rare earth element 0.05-
0.09%, other single contents of impurity element are not more than 0.05%, and summation is not more than 0.15%, remaining is Al.
Preferably, the ingredient of the high-strength abrasion-proof aluminum alloy materials contains by weight percentage: Cu
7.50-9.50%, Zn 3.00-4.00%, Mn 0.22-0.24%, B 0.45-0.55%, Ni 0.35-0.37%, Zr
0.09-0.11%, Ti 0.12-0.14%, Mo 0.03-0.05%, W 0.23-0.25%, rare earth element 0.06-0.08%, it is other
The single content of impurity element is not more than 0.05%, and summation is not more than 0.15%, remaining is Al.
Preferably, the ingredient of the high-strength abrasion-proof aluminum alloy materials contains by weight percentage: Cu
8.50%, Zn 3.50%, Mn 0.23%, B 0.50%, Ni 0.36%, Zr 0.10%, Ti 0.13%, Mo 0.04%, W
0.24%, rare earth element 0.07%, other single contents of impurity element are not more than 0.05%, and summation is not more than 0.15%, remaining is Al.
Preferably, the mass percent of the chemical component of the rare earth element are as follows: La 22-28%, Ce 31-
35%, Nd 5-10%, remaining is Y.
Preferably, the present invention also provides the preparation methods of above-mentioned high-strength abrasion-proof aluminum alloy materials, including with
Lower step:
(1) suitable aluminium ingot or molten aluminum liquid are added into smelting furnace, furnace chamber is then evacuated to 1 × 10-4Pa, then to furnace
It is intracavitary to be passed through inert gas, so that air pressure in furnace is reached 40-50Pa, heating is allowed to melt completely and keep the temperature at 720-760 DEG C；
(2) with scummer by aluminum solutions slag and impurity remove, clear up aluminum solutions in oxide on surface and field trash；
(3) step (2) aluminum solutions are warming up to 750-780 DEG C, Mn, Ni, Zr, Ti, Mo, W pure metal is first added by formula rate
Or Al-Mn, Al-Ni, Al-Zr, Al-Ti, Al-Mo, Al-W intermediate alloy, Cu, Zn pure metal or Al- are added after mixing evenly
Cu, Al-Zn intermediate alloy, add B and rare earth element, stir evenly；
(4) furnace refining then is carried out to above-mentioned alloy melt, adjusts molten aluminium alloy liquid temperature at 730-750 DEG C, and past conjunction
Refining agent is added in golden melt, carries out 5-10min and uniformly stirs, melt refining is operated under enclosed environment；
(5) to 680-720 DEG C, aluminium alloy, which is toppled over, comes out of the stove for slag hitting, standing, temperature adjustment after refining, and online degasification removes Slag treatment；
(6) step (5) aluminum alloy melt is cast into aluminium alloy cast ingot；
(7) aluminium alloy cast ingot in step (6) is heat-treated, obtains high-strength abrasion-proof aluminum alloy materials；
(8) the high-strength abrasion-proof aluminum alloy materials in step (7) are subjected to flaw detection processing, the measurement of mechanical performance analysis, finally
Qualified products are prepared.
Preferably, the inert gas in the step (1) refers to nitrogen or argon gas.
Preferably, the refining agent in the step (4) is chlorine, carbon trichloride, manganese chloride or boron salt alterant.
Preferably, aluminum alloy melt is cast into ingot casting in the step (6) specifically comprises the processes of: casts aluminium alloy solution
Make under the conditions of 710-730 DEG C of temperature, casting speed 70-80 mm/min, cooling water pressure 0.5-0.7Mpa semi-continuous casting at
Aluminium alloy cast ingot.
Preferably, step (7) heat treatment specifically comprises the processes of: solid solubility temperature is 520-540 DEG C, keeps the temperature 1-3
Hour, cooling transfer time is not more than 15 seconds, and aging technique carries out in 5 hours after quenching, 190-210 DEG C of aging temp temperature,
Time is 5-8 hours.
Preferably, step (7) heat treatment specifically comprises the processes of: solid solubility temperature is 530 DEG C, keeps the temperature 2 hours, cold
But transfer time is not more than 15 seconds, and aging technique carries out in 5 hours after quenching, and 200 DEG C of aging temp temperature, the time is 6.5 small
When.
Compared with prior art, the present invention have it is following the utility model has the advantages that
(1) present invention is asked by designing specific alloying component composition, the wearability and intensity deficiency for solving aluminum alloy materials
Topic enables aluminum alloy to material while having high-intensitive, high abrasion and excellent tensile strength, specifically: by selecting Cu, Zn, Mn
With the combination formula of the micro alloying element characterized by Ni, W, Mo, conducive to the cultivation and refinement of alloy, so that the alloy generated is more
The densification added, to improve the intensity and wear-resisting property of alloy.
(2) present invention enables aluminium alloy grain size to reach one by strict control casting technique and heat treatment process
Grade crystal grain is (according to 3246.2 standard test of GB/T, crystal grain average area≤0.026mm2), so that aluminium alloy of the present invention has
There are high-intensitive, high abrasion and excellent tensile strength.
(3) present invention can inhibit recrystallization and crystal grain to grow up by Mo, W, Ti element, and add rare earth member behind
Element can further refine crystal grain, improve alloy mechanical property, the homogenization and extrusion process of strict control aluminium alloy, thus
So that the intensity of aluminium alloy of the present invention, wearability and tensile strength are largely increased.
Specific embodiment
Invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
The high-strength abrasion-proof aluminum alloy materials ingredient of the present embodiment contains by weight percentage: Cu 6.50%, Zn 2.50%,
Mn 0.21%, Ni 0.34%, Zr 0.08%, Ti 0.11%, Mo 0.02%, W 0.22%, rare earth element 0.05%, surplus are
Aluminium and inevitable other impurities.
The mass percent of the chemical component of the rare earth element are as follows: La 22%, Ce 31%, Nd 5%, Y 42%.
The present invention also provides the preparation methods of above-mentioned high-strength abrasion-proof aluminum alloy materials, comprising the following steps:
(1) suitable aluminium ingot or molten aluminum liquid are added into smelting furnace, furnace chamber is then evacuated to 1 × 10-4Pa, then to furnace
It is intracavitary to be passed through inert gas, so that air pressure in furnace is reached 40Pa, heating is allowed to melt completely and keep the temperature at 720 DEG C；
(2) with scummer by aluminum solutions slag and impurity remove, clear up aluminum solutions in oxide on surface and field trash；
(3) step (2) aluminum solutions are warming up to 750 DEG C, Mn, Ni, Zr, Ti, Mo, W pure metal or Al- is first added by formula rate
Mn, Al-Ni, Al-Zr, Al-Ti, Al-Mo, Al-W intermediate alloy, add after mixing evenly Cu, Zn pure metal or Al-Cu,
Al-Zn intermediate alloy, adds B and rare earth element, stirs evenly；
(4) furnace refining then is carried out to above-mentioned alloy melt, adjusts molten aluminium alloy liquid temperature at 730 DEG C, and molten toward alloy
Refining agent is added in body, carries out 5min and uniformly stirs, melt refining is operated under enclosed environment；
(5) to 680 DEG C, aluminium alloy, which is toppled over, comes out of the stove for slag hitting, standing, temperature adjustment after refining, and online degasification removes Slag treatment；
(6) step (5) aluminum alloy melt is cast into aluminium alloy cast ingot；
(7) aluminium alloy cast ingot in step (6) is heat-treated, obtains high-strength abrasion-proof aluminum alloy materials；
(8) the high-strength abrasion-proof aluminum alloy materials in step (7) are subjected to flaw detection processing, the measurement of mechanical performance analysis, finally
Qualified products are prepared.
Inert gas in the step (1) refers to nitrogen or argon gas.
Refining agent in the step (4) is chlorine, carbon trichloride, manganese chloride or boron salt alterant.
Aluminum alloy melt is cast into ingot casting in the step (6) specifically comprises the processes of: by 710 DEG C of aluminium alloy solution casting temperature,
Semi-continuous casting is at aluminium alloy cast ingot under the conditions of 70 mm/min of casting speed, cooling water pressure 0.5Mpa.
Step (7) heat treatment specifically comprises the processes of: solid solubility temperature is 520 DEG C, keeps the temperature 1 hour, and cooling transfer time is not
Greater than 15 seconds, aging technique carried out in 5 hours after quenching, and 190 DEG C of aging temp temperature, the time is 5 hours.
Embodiment 2
The high-strength abrasion-proof aluminum alloy materials ingredient of the present embodiment contains by weight percentage: Cu 10.50%, Zn
4.50%, Mn 0.25%, Ni 0.38%, Zr 0.12%, Ti 0.15%, Mo 0.05%, W 0.26%, rare earth element
0.09%, surplus is aluminium and inevitable other impurities.
The mass percent of the chemical component of the rare earth element are as follows: La 28%, Ce 35%, Nd 10%, Y 27%.
The present invention also provides the preparation methods of above-mentioned high-strength abrasion-proof aluminum alloy materials, comprising the following steps:
(1) suitable aluminium ingot or molten aluminum liquid are added into smelting furnace, furnace chamber is then evacuated to 1 × 10-4Pa, then to furnace
It is intracavitary to be passed through inert gas, so that air pressure in furnace is reached 50Pa, heating is allowed to melt completely and keep the temperature at 760 DEG C；
(2) with scummer by aluminum solutions slag and impurity remove, clear up aluminum solutions in oxide on surface and field trash；
(3) step (2) aluminum solutions are warming up to 780 DEG C, Mn, Ni, Zr, Ti, Mo, W pure metal or Al- is first added by formula rate
Mn, Al-Ni, Al-Zr, Al-Ti, Al-Mo, Al-W intermediate alloy, add after mixing evenly Cu, Zn pure metal or Al-Cu,
Al-Zn intermediate alloy, adds B and rare earth element, stirs evenly；
(4) furnace refining then is carried out to above-mentioned alloy melt, adjusts molten aluminium alloy liquid temperature at 750 DEG C, and molten toward alloy
Refining agent is added in body, carries out 10min and uniformly stirs, melt refining is operated under enclosed environment；
(5) to 720 DEG C, aluminium alloy, which is toppled over, comes out of the stove for slag hitting, standing, temperature adjustment after refining, and online degasification removes Slag treatment；
(6) step (5) aluminum alloy melt is cast into aluminium alloy cast ingot；
(7) aluminium alloy cast ingot in step (6) is heat-treated, obtains high-strength abrasion-proof aluminum alloy materials；
(8) the high-strength abrasion-proof aluminum alloy materials in step (7) are subjected to flaw detection processing, the measurement of mechanical performance analysis, finally
Qualified products are prepared.
Inert gas in the step (1) refers to nitrogen or argon gas.
Refining agent in the step (4) is chlorine, carbon trichloride, manganese chloride or boron salt alterant.
Aluminum alloy melt is cast into ingot casting in the step (6) specifically comprises the processes of: by 730 DEG C of aluminium alloy solution casting temperature,
Semi-continuous casting is at aluminium alloy cast ingot under the conditions of 80 mm/min of casting speed, cooling water pressure 0.7Mpa.
Step (7) heat treatment specifically comprises the processes of: solid solubility temperature is 540 DEG C, keeps the temperature 3 hours, and cooling transfer time is not
Greater than 15 seconds, aging technique carried out in 5 hours after quenching, and 210 DEG C of aging temp temperature, the time is 8 hours.
Embodiment 3
The high-strength abrasion-proof aluminum alloy materials ingredient of the present embodiment contains by weight percentage: Cu 8.50%, Zn 3.50%,
Mn 0.23%, Ni 0.36%, Zr 0.10%, Ti 0.13%, Mo 0.04%, W 0.24%, rare earth element 0.07%, surplus are
Aluminium and inevitable other impurities.
The mass percent of the chemical component of the rare earth element are as follows: La 25%, Ce 33%, Nd 7%, Y 35%.
The present invention also provides the preparation methods of above-mentioned high-strength abrasion-proof aluminum alloy materials, comprising the following steps:
(1) suitable aluminium ingot or molten aluminum liquid are added into smelting furnace, furnace chamber is then evacuated to 1 × 10-4Pa, then to furnace
It is intracavitary to be passed through inert gas, so that air pressure in furnace is reached 45Pa, heating is allowed to melt completely and keep the temperature at 740 DEG C；
(2) with scummer by aluminum solutions slag and impurity remove, clear up aluminum solutions in oxide on surface and field trash；
(3) step (2) aluminum solutions are warming up to 765 DEG C, Mn, Ni, Zr, Ti, Mo, W pure metal or Al- is first added by formula rate
Mn, Al-Ni, Al-Zr, Al-Ti, Al-Mo, Al-W intermediate alloy, add after mixing evenly Cu, Zn pure metal or Al-Cu,
Al-Zn intermediate alloy, adds B and rare earth element, stirs evenly；
(4) furnace refining then is carried out to above-mentioned alloy melt, adjusts molten aluminium alloy liquid temperature at 740 DEG C, and molten toward alloy
Refining agent is added in body, carries out 7.5min and uniformly stirs, melt refining is operated under enclosed environment；
(5) to 700 DEG C, aluminium alloy, which is toppled over, comes out of the stove for slag hitting, standing, temperature adjustment after refining, and online degasification removes Slag treatment；
(6) step (5) aluminum alloy melt is cast into aluminium alloy cast ingot；
(7) aluminium alloy cast ingot in step (6) is heat-treated, obtains high-strength abrasion-proof aluminum alloy materials；
(8) the high-strength abrasion-proof aluminum alloy materials in step (7) are subjected to flaw detection processing, the measurement of mechanical performance analysis, finally
Qualified products are prepared.
Inert gas in the step (1) refers to nitrogen or argon gas.
Refining agent in the step (4) is chlorine, carbon trichloride, manganese chloride or boron salt alterant.
Aluminum alloy melt is cast into ingot casting in the step (6) specifically comprises the processes of: by 720 DEG C of aluminium alloy solution casting temperature,
Semi-continuous casting is at aluminium alloy cast ingot under the conditions of casting speed 70-80 mm/min, cooling water pressure 0.6Mpa.
Step (7) heat treatment specifically comprises the processes of: solid solubility temperature is 530 DEG C, keeps the temperature 2 hours, and cooling transfer time is not
Greater than 15 seconds, aging technique carried out in 5 hours after quenching, and 200 DEG C of aging temp temperature, the time is 6.5 hours.
Embodiment 4
The high-strength abrasion-proof aluminum alloy materials ingredient of the present embodiment contains by weight percentage: Cu 7.50%, Zn 3.00%,
Mn 0.22%, B 0.45%, Ni 0.35%, Zr 0.09%, Ti 0.12%, Mo 0.03%, W 0.23%, rare earth element
0.06%, surplus is aluminium and inevitable other impurities.
The mass percent of the chemical component of the rare earth element are as follows: La 23%, Ce 32%, Nd 6%, Y 39%.
The present invention also provides the preparation processes of above-mentioned high-strength abrasion-proof aluminum alloy materials, comprising the following steps:
(1) suitable aluminium ingot or molten aluminum liquid are added into smelting furnace, furnace chamber is then evacuated to 1 × 10-4Pa, then to furnace
It is intracavitary to be passed through inert gas, so that air pressure in furnace is reached 43Pa, heating is allowed to melt completely and keep the temperature at 730 DEG C；
(2) with scummer by aluminum solutions slag and impurity remove, clear up aluminum solutions in oxide on surface and field trash；
(3) step (2) aluminum solutions are warming up to 760 DEG C, Mn, Ni, Zr, Ti, Mo, W pure metal or Al- is first added by formula rate
Mn, Al-Ni, Al-Zr, Al-Ti, Al-Mo, Al-W intermediate alloy, add after mixing evenly Cu, Zn pure metal or Al-Cu,
Al-Zn intermediate alloy, adds B and rare earth element, stirs evenly；
(4) furnace refining then is carried out to above-mentioned alloy melt, adjusts molten aluminium alloy liquid temperature at 735 DEG C, and molten toward alloy
Refining agent is added in body, carries out 6min and uniformly stirs, melt refining is operated under enclosed environment；
(5) to 690 DEG C, aluminium alloy, which is toppled over, comes out of the stove for slag hitting, standing, temperature adjustment after refining, and online degasification removes Slag treatment；
(6) step (5) aluminum alloy melt is cast into aluminium alloy cast ingot；
(7) aluminium alloy cast ingot in step (6) is heat-treated, obtains high-strength abrasion-proof aluminum alloy materials；
(8) the high-strength abrasion-proof aluminum alloy materials in step (7) are subjected to flaw detection processing, the measurement of mechanical performance analysis, finally
Qualified products are prepared.
Inert gas in the step (1) refers to nitrogen or argon gas.
Refining agent in the step (4) is chlorine, carbon trichloride, manganese chloride or boron salt alterant.
Aluminum alloy melt is cast into ingot casting in the step (6) specifically comprises the processes of: by 715 DEG C of aluminium alloy solution casting temperature,
Semi-continuous casting is at aluminium alloy cast ingot under the conditions of 73 mm/min of casting speed, cooling water pressure 0.6Mpa.
Step (7) heat treatment specifically comprises the processes of: solid solubility temperature is 525 DEG C, keeps the temperature 1.5 hours, cooling transfer time
No more than 15 seconds, aging technique carried out in 5 hours after quenching, and 195 DEG C of aging temp temperature, the time is 6 hours.
Embodiment 5
The high-strength abrasion-proof aluminum alloy materials ingredient of the present embodiment contains by weight percentage: Cu 9.50%, Zn 4.00%,
Mn 0.24%, B 0.55%, Ni 0.37%, Zr 0.11%, Ti 0.14%, Mo 0.04%, W 0.25%, rare earth element
0.08%, surplus is aluminium and inevitable other impurities.
The mass percent of the chemical component of the rare earth element are as follows: La 27%, Ce 34%, Nd 9%, Y 30%.
The present invention also provides the preparation processes of above-mentioned high-strength abrasion-proof aluminum alloy materials, comprising the following steps:
(1) suitable aluminium ingot or molten aluminum liquid are added into smelting furnace, furnace chamber is then evacuated to 1 × 10-4Pa, then to furnace
It is intracavitary to be passed through inert gas, so that air pressure in furnace is reached 48Pa, heating is allowed to melt completely and keep the temperature at 750 DEG C；
(2) with scummer by aluminum solutions slag and impurity remove, clear up aluminum solutions in oxide on surface and field trash；
(3) step (2) aluminum solutions are warming up to 770 DEG C, Mn, Ni, Zr, Ti, Mo, W pure metal or Al- is first added by formula rate
Mn, Al-Ni, Al-Zr, Al-Ti, Al-Mo, Al-W intermediate alloy, add after mixing evenly Cu, Zn pure metal or Al-Cu,
Al-Zn intermediate alloy, adds B and rare earth element, stirs evenly；
(4) furnace refining then is carried out to above-mentioned alloy melt, adjusts molten aluminium alloy liquid temperature at 745 DEG C, and molten toward alloy
Refining agent is added in body, carries out 9min and uniformly stirs, melt refining is operated under enclosed environment；
(5) to 710 DEG C, aluminium alloy, which is toppled over, comes out of the stove for slag hitting, standing, temperature adjustment after refining, and online degasification removes Slag treatment；
(6) step (5) aluminum alloy melt is cast into aluminium alloy cast ingot；
(7) aluminium alloy cast ingot in step (6) is heat-treated, obtains high-strength abrasion-proof aluminum alloy materials；
(8) the high-strength abrasion-proof aluminum alloy materials in step (7) are subjected to flaw detection processing, the measurement of mechanical performance analysis, finally
Qualified products are prepared.
Inert gas in the step (1) refers to nitrogen or argon gas.
Refining agent in the step (4) is chlorine, carbon trichloride, manganese chloride or boron salt alterant.
Aluminum alloy melt is cast into ingot casting in the step (6) specifically comprises the processes of: by 725 DEG C of aluminium alloy solution casting temperature,
Semi-continuous casting is at aluminium alloy cast ingot under the conditions of 78 mm/min of casting speed, cooling water pressure 0.7Mpa.
Step (7) heat treatment specifically comprises the processes of: solid solubility temperature is 535 DEG C, keeps the temperature 2.5 hours, cooling transfer time
No more than 15 seconds, aging technique carried out in 5 hours after quenching, and 205 DEG C of aging temp temperature, the time is 7 hours.
Comparative example 1
The wear-resisting high-strength aluminum alloy material prepared using the method for Chinese invention patent application 200810231204.0.
Comparative example 2
The high-strength abrasion-proof aluminum alloy prepared using the method for Chinese invention patent application 200610165341.X.
Test example
Aluminium alloy made from embodiment 1-5 and comparative example 1, comparative example 2 is tested, correlated performance test result is as follows table 1
It is shown:
Table 1
| Test item | Brinell hardness (HB) | Abrasion loss (mg) | Tensile strength/MPa |
| Embodiment 1 | 155 | 5.3 | 346 |
| Embodiment 2 | 159 | 4.9 | 351 |
| Embodiment 3 | 164 | 4.4 | 355 |
| Embodiment 4 | 161 | 4.6 | 352 |
| Embodiment 5 | 152 | 4.8 | 349 |
| Comparative example 1 | 135 | 7.8 | 325 |
| Comparative example 2 | 112 | 8.7 | 228 |
As shown in Table 1, the hardness, wearability and tensile strength of aluminum alloy materials produced by the present invention are superior to comparative example, and
The hardness of the aluminum alloy materials obtained of embodiment 3, wearability and tensile strength are best.
In conclusion creativeness of the invention is mainly reflected in the following:
(1) present invention is asked by designing specific alloying component composition, the wearability and intensity deficiency for solving aluminum alloy materials
Topic enables aluminum alloy to material while having high-intensitive, high abrasion and excellent tensile strength, specifically: by selecting Cu, Zn, Mn
With the combination formula of the micro alloying element characterized by Ni, W, Mo, conducive to the cultivation and refinement of alloy, so that the alloy generated is more
The densification added, to improve the intensity and wear-resisting property of alloy.
(2) present invention enables aluminium alloy grain size to reach one by strict control casting technique and heat treatment process
Grade crystal grain is (according to 3246.2 standard test of GB/T, crystal grain average area≤0.026mm2), so that aluminium alloy of the present invention has
There are high-intensitive, high abrasion and excellent tensile strength.
(3) present invention can inhibit recrystallization and crystal grain to grow up by Mo, W, Ti element, and add rare earth member behind
Element can further refine crystal grain, improve alloy mechanical property, the homogenization and extrusion process of strict control aluminium alloy, thus
So that the intensity of aluminium alloy of the present invention, wearability and tensile strength are largely increased.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of high-strength abrasion-proof aluminum alloy materials, which is characterized in that the high intensity high-strength abrasion-proof aluminum alloy materials at
Divide and contain by weight percentage: Cu 6.50-10.50%, Zn 2.50-4.50%, Mn 0.21-0.25%, B 0.40-
0.60%, Ni 0.34-0.38%, Zr 0.08-0.12%, Ti 0.11-0.15%, Mo 0.02-0.05%, W 0.22-
0.26%, rare earth element 0.05-0.09%, other single contents of impurity element are not more than 0.05%, and summation is not more than 0.15%, remaining
For Al.
2. high-strength abrasion-proof aluminum alloy materials according to claim 1, which is characterized in that the high-strength abrasion-proof aluminium alloy
The ingredient of material contains by weight percentage: Cu 7.50-9.50%, Zn 3.00-4.00%, Mn 0.22-0.24%, B
0.45-0.55%, Ni 0.35-0.37%, Zr 0.09-0.11%, Ti 0.12-0.14%, Mo 0.03-0.05%, W 0.23-
0.25%, rare earth element 0.06-0.08%, other single contents of impurity element are not more than 0.05%, and summation is not more than 0.15%, remaining
For Al.
3. high-strength abrasion-proof aluminum alloy materials according to claim 2, which is characterized in that the high-strength abrasion-proof aluminium alloy
The ingredient of material contains by weight percentage: Cu 8.50%, Zn 3.50%, Mn 0.23%, B 0.50%, Ni 0.36%,
Zr 0.10%, Ti 0.13%, Mo 0.04%, W 0.24%, rare earth element 0.07%, other single contents of impurity element are not more than
0.05%, summation is not more than 0.15%, remaining is Al.
4. high-strength abrasion-proof aluminum alloy materials according to claim 1, which is characterized in that the rare earth element chemistry at
The mass percent divided are as follows: La 22-28%, Ce 31-35%, Nd 5-10%, remaining is Y.
5. the preparation method of high-strength abrasion-proof aluminum alloy materials according to claim 1-4, which is characterized in that packet
Include following steps:
(1) suitable aluminium ingot or molten aluminum liquid are added into smelting furnace, furnace chamber is then evacuated to 1 × 10-4Pa, then to furnace chamber
It is inside passed through inert gas, so that air pressure in furnace is reached 40-50Pa, heating is allowed to melt completely and keep the temperature at 720-760 DEG C；
(2) with scummer by aluminum solutions slag and impurity remove, clear up aluminum solutions in oxide on surface and field trash；
(3) step (2) aluminum solutions are warming up to 750-780 DEG C, Mn, Ni, Zr, Ti, Mo, W pure metal is first added by formula rate
Or Al-Mn, Al-Ni, Al-Zr, Al-Ti, Al-Mo, Al-W intermediate alloy, Cu, Zn pure metal or Al- are added after mixing evenly
Cu, Al-Zn intermediate alloy, add B and rare earth element, stir evenly；
(4) furnace refining then is carried out to above-mentioned alloy melt, adjusts molten aluminium alloy liquid temperature at 730-750 DEG C, and past conjunction
Refining agent is added in golden melt, carries out 5-10min and uniformly stirs, melt refining is operated under enclosed environment；
(5) to 680-720 DEG C, aluminium alloy, which is toppled over, comes out of the stove for slag hitting, standing, temperature adjustment after refining, and online degasification removes Slag treatment；
(6) step (5) aluminum alloy melt is cast into aluminium alloy cast ingot；
(7) aluminium alloy cast ingot in step (6) is heat-treated, obtains high-strength abrasion-proof aluminum alloy materials；
(8) the high-strength abrasion-proof aluminum alloy materials in step (7) are subjected to flaw detection processing, the measurement of mechanical performance analysis, finally
Qualified products are prepared.
6. the preparation method of high-strength abrasion-proof aluminum alloy materials according to claim 5, which is characterized in that the step
(1) inert gas in refers to nitrogen or argon gas.
7. the preparation method of high-strength abrasion-proof aluminum alloy materials according to claim 5, which is characterized in that the step
(4) refining agent in is chlorine, carbon trichloride, manganese chloride or boron salt alterant.
8. the preparation method of high-strength abrasion-proof aluminum alloy materials according to claim 5, which is characterized in that the step
(6) aluminum alloy melt is cast into ingot casting in specifically comprises the processes of: by 710-730 DEG C of aluminium alloy solution casting temperature, casting speed 70-80
Semi-continuous casting is at aluminium alloy cast ingot under the conditions of mm/min, cooling water pressure 0.5-0.7Mpa.
9. the preparation method of high-strength abrasion-proof aluminum alloy materials according to claim 5, which is characterized in that the step
(7) it being heat-treated specifically comprises the processes of: solid solubility temperature is 520-540 DEG C, keeps the temperature 1-3 hours, and cooling transfer time is not more than 15 seconds, when
Effect technique carries out in 5 hours after quenching, 190-210 DEG C of aging temp temperature, and the time is 5-8 hours.
10. the preparation method of high-strength abrasion-proof aluminum alloy materials according to claim 9, which is characterized in that the step
(7) it is heat-treated specifically comprises the processes of: solid solubility temperature is 530 DEG C, keeps the temperature 2 hours, and cooling transfer time is not more than 15 seconds, aging technique
It is carried out in 5 hours after quenching, 200 DEG C of aging temp temperature, the time is 6.5 hours.
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| CN112359234A (en) * | 2020-11-06 | 2021-02-12 | 安徽鑫发铝业有限公司 | Preparation method of high-strength wear-resistant ultrathin aluminum profile for assault boat |
| CN116005045A (en) * | 2022-12-30 | 2023-04-25 | 佛山市三水凤铝铝业有限公司 | Aluminum alloy material for battery tray and preparation method thereof |
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