CN109234578A - Aluminium alloy, tubing, heat exchanger, air-conditioning and refrigeration equipment - Google Patents
Aluminium alloy, tubing, heat exchanger, air-conditioning and refrigeration equipment Download PDFInfo
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- CN109234578A CN109234578A CN201811119136.9A CN201811119136A CN109234578A CN 109234578 A CN109234578 A CN 109234578A CN 201811119136 A CN201811119136 A CN 201811119136A CN 109234578 A CN109234578 A CN 109234578A
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The present invention provides aluminium alloy, tubing, heat exchanger, air-conditioning and refrigeration equipments.The aluminium alloy includes aluminium, zinc and composite rare-earth oxide.Cost is relatively low for the aluminium alloy, and mechanical property is good, and corrosion resistance is good, applied widely.
Description
Technical field
The present invention relates to field of material technology, and in particular, to aluminium alloy, tubing, heat exchanger, air-conditioning and refrigeration equipment.
Background technique
In the related art, easily corrode for will lead to aluminium alloy containing copper in the aluminium alloy of tubing, if but not
The toughness that will lead to aluminium alloy again containing copper declines to a great extent.Common practice is more manganese to be added in the aluminium alloy to improve
The toughness of aluminium alloy, however, such way will lead to the moulding decline of aluminium alloy again.
Thus, the relevant technologies of the existing aluminium alloy for tubing still have much room for improvement.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
The present invention is the following discovery based on inventor and completes:
Inventor surprisingly has found after having carried out largely deep investigation and experimental verification for the aluminium alloy for tubing,
For containing zinc and composite rare-earth oxide in the aluminium alloy of tubing simultaneously, since the anti-of the aluminium alloy can be improved in the addition of zinc
Corrosive nature makes the aluminium alloy particularly suitable for making tubing, and composite rare-earth oxide plays refinement group to the aluminium alloy
The effect knitted acts synergistically to cooperate between the aluminium and zinc, composite rare-earth oxide in aluminium alloy, compared to
The aluminium alloy for tubing in the related technology, mechanical property is good, and corrosion resistance is good.
In view of this, an object of the present invention is to provide one kind, cost is relatively low, mechanical property is good, corrosion resistance
Good or aluminium alloy applied widely.
In one aspect of the invention, the present invention provides a kind of aluminium alloys.According to an embodiment of the invention, the aluminium alloy
It include: aluminium, zinc and composite rare-earth oxide.Inventors have found that the corrosion resistance of the aluminium alloy can be improved in the addition due to zinc
Can, make the aluminium alloy particularly suitable for making tubing, and composite rare-earth oxide plays the work of thinning microstructure to the aluminium alloy
With acting synergistically to cooperate between the aluminium and zinc, composite rare-earth oxide in aluminium alloy, compared to related skill
The aluminium alloy for tubing in art, mechanical property is good, and corrosion resistance is good.
According to an embodiment of the invention, the composite rare-earth oxide includes lanthana, cerium oxide, praseodymium oxide and neodymia
In at least two.
According to an embodiment of the invention, the aluminium alloy includes: the alloy composite containing aluminium, zinc, lanthana and cerium oxide.
According to an embodiment of the invention, the aluminium alloy not cupric.
According to an embodiment of the invention, the aluminium alloy further comprises: manganese, silicon and iron.
According to an embodiment of the invention, the aluminium alloy includes: 96 parts by weight~98 parts by weight aluminium；1.0 parts by weight
The manganese of~1.25 parts by weight；0.15 parts by weight~0.4 parts by weight silicon；0.15 parts by weight~0.55 parts by weight institute
State iron；0.05 parts by weight~0.15 parts by weight zinc；With 0.01 parts by weight~0.16 parts by weight compound rare-earth oxygen
Compound.
According to an embodiment of the invention, the aluminium alloy meets at least one of the following conditions: elongation percentage is not less than 20%；
Tensile strength is not less than 115MPa；The time of neutral salt spray test is not less than 1000h.
In another aspect of the invention, the present invention provides a kind of tubing.According to an embodiment of the invention, the tubing
At least part be to be formed by mentioned-above aluminium alloy.Inventors have found that cost is relatively low for the tubing, mechanical property
It is good, and corrosion resistance is good.
In an additional aspect of the present invention, the present invention provides a kind of heat exchangers.According to an embodiment of the invention, the heat exchange
Device includes mentioned-above tubing.Inventors have found that the corrosion resistance of the heat exchanger is good, intensity is high, is during transportation
Make to collide and be also unlikely to deform or damage, the service life is long, and service performance is good.
In an additional aspect of the present invention, the present invention provides a kind of air-conditionings.According to an embodiment of the invention, the air-conditioning packet
Include mentioned-above tubing.Inventors have found that the air-conditioning service life is long, service performance is good, and corrosion resistance is good.
In another aspect of the invention, the present invention provides a kind of refrigeration equipments.According to an embodiment of the invention, the system
Cool equipment includes mentioned-above tubing.Inventors have found that the refrigeration equipment service life is long, service performance is good, and corrosion resistance is good.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of the tubing of one embodiment of the invention；
Fig. 2 shows the structural schematic diagram of the heat exchanger of one embodiment of the invention.
Appended drawing reference:
10: heat exchanger 100: tubing
Specific embodiment
The embodiment of the present invention is described below in detail.The embodiments described below is exemplary, and is only used for explaining this hair
It is bright, and be not considered as limiting the invention.Particular technique or condition are not specified in embodiment, according to text in the art
It offers described technology or conditions or is carried out according to product description.Reagents or instruments used without specified manufacturer,
For can be with conventional products that are commercially available.
In one aspect of the invention, the present invention provides a kind of aluminium alloys.According to an embodiment of the invention, the aluminium alloy
It include: aluminium, zinc and composite rare-earth oxide (it should be noted that composite rare-earth oxide of the present invention refers to containing extremely
The rare earth oxide of few two kinds of rare earth elements).Inventors have found that the corrosion resistance of the aluminium alloy can be improved in the addition due to zinc
Can, make the aluminium alloy particularly suitable for making tubing, and composite rare-earth oxide plays the work of thinning microstructure to the aluminium alloy
With acting synergistically to cooperate between the aluminium and zinc, composite rare-earth oxide in aluminium alloy, compared to related skill
The aluminium alloy for tubing in art, mechanical property is good, and corrosion resistance is good.
According to an embodiment of the invention, inventor the type of the composite rare-earth oxide has been carried out it is a large amount of careful
Investigation and experimental verification, inventors have found that the composite rare-earth oxide may include lanthana, cerium oxide, praseodymium oxide and oxygen
Change neodymium etc..Material source is extensive as a result, is easy to get, and cost is relatively low, and the mechanical property of the aluminium alloy can be made further to become
Good, corrosion resistance further improves.
According to an embodiment of the invention, further, the composite rare-earth oxide in the composite material is dilute by two kinds
When native oxide is mixed to form, compared to the composite material formed using a greater variety of rare earth oxides, mechanical property is into one
Step improves, corrosion resistance further improves.In some embodiments of the invention, specifically, the composite rare-earth oxide
It can be mixed to form by lanthana and cerium oxide；It can also be mixed to form by lanthana and praseodymium oxide；Can also by lanthana and
Neodymia is mixed to form.The aluminium alloy that rare earth oxide compared to three kinds or three kinds or more is formed as a result, mechanical property into
One step improves, corrosion resistance further improves.
According to an embodiment of the invention, further, the composite rare-earth oxide is formed by lanthana and cerium oxide.
Inventor is after a large amount of careful investigations and experimental verification it was unexpectedly observed that the composite rare-earth oxide is by lanthana and oxygen
Change cerium to be formed, compared to the aluminium alloy that other kinds of composite rare-earth oxide is formed, mechanical property significantly improves, is anticorrosive
Performance significantly improves.
According to an embodiment of the invention, in the composite rare-earth oxide formed by lanthana and cerium oxide, lanthana
Mass ratio with cerium oxide can be (1.5~1): 1.In some embodiments of the invention, the lanthana and cerium oxide
Mass ratio can be 1.5:1,1.4:1,1.3:1,1.2:1,1.1:1,1:1 etc..The ratio of lanthana and cerium oxide is suitable as a result,
In, it can make that the mechanical property of the aluminium alloy significantly improves, corrosion resistance significantly improves.
In some embodiments of the invention, the aluminium alloy may include the conjunction containing aluminium, zinc, lanthana and cerium oxide
Golden composition.As a result, since the composite rare-earth oxide in aluminium alloy is formed by lanthana and cerium oxide, and between each component
Alloy is formed, the synergistic effect for the generation that cooperates between each component is more abundant, and then the mechanical property of aluminium alloy significantly becomes
Good, corrosion resistance significantly improves.
In other embodiments of the invention, the aluminium alloy be can further include: manganese, silicon and iron.As a result, may be used
So that the mechanical property of aluminium alloy further improves, corrosion resistance further improves, and silicon can make the aluminium alloy
Good fluidity, the mechanical property of the aluminium alloy further increases, so that the aluminium alloy is particularly suitable for soldering；Manganese
Solution strengthening effect can be played to the aluminium alloy, to promote the mechanical properties such as the toughness of the aluminium alloy；Iron can be with
Aluminium in the aluminium alloy forms binary compound, to further increase the mechanical property of the aluminium alloy.
According to an embodiment of the invention, the aluminium alloy may include: 96 parts by weight~98 parts by weight aluminium；1.0
Parts by weight~1.25 parts by weight manganese；0.15 parts by weight~0.4 parts by weight silicon；0.15 parts by weight~0.55 weight
The iron of part；0.05 parts by weight~0.15 parts by weight zinc；It is described compound with 0.01 parts by weight~0.16 parts by weight
Rare earth oxide.The parts by weight of aluminium are moderate in the aluminium alloy as a result, can make in the aluminium alloy containing enough
Multi-element compounds, to promote the mechanical property of the aluminium alloy, meanwhile, the amount of multi-element compounds will not excessively cause destroy institute
The tissue integrity of crystal in aluminium alloy is stated to influence the mechanical property and corrosion resistance of the aluminium alloy；The weight of the iron
It is moderate to measure number, so that containing enough multi-element compounds in the aluminium alloy, to promote the aluminium alloy
Mechanical property, meanwhile, the amount of multi-element compounds will not excessively cause to destroy the tissue integrity of crystal in the aluminium alloy to
Influence the mechanical property and corrosion resistance of the aluminium alloy；The parts by weight of the silicon are moderate, and the aluminium can both have been made to close
Containing a certain amount of primary silicon to play the purpose for strengthening the aluminium alloy in gold, while the complete of the aluminium alloy will not be destroyed
Whole property, causes the mechanical property of aluminium alloy lower；The parts by weight of the manganese are moderate, both can play solid solution to the aluminium alloy
The effect of reinforcing will not destroy the tissue integrity of the aluminium alloy crystal；The parts by weight of the zinc are moderate, both will not mistake
High and aluminium forms a large amount of binary compound, such that due to component segregation acts on, a large amount of binary compound occurs and gathers
The grain boundaries of the aluminium alloy decline to a great extent so as to cause the performance of aluminium alloy；Will not be too low and cause zinc and aluminium to be formed
Hardening constituent is insufficient, is unable to reach the purpose of reinforced aluminium alloy performance；The parts by weight of the composite rare-earth oxide are moderate, can be with
Play the role of dispersion-strengtherning to the aluminium alloy, the integrality of the aluminium alloy texture will not be destroyed, so that
The mechanical property and corrosion resistance of the aluminium alloy significantly improve.
In some embodiments of the invention, the aluminium alloy can be with specifically: the aluminium containing 98 parts by weight, 1 parts by weight
Manganese, the silicon of 0.15 parts by weight, the iron of 0.15 parts by weight, the zinc of 0.05 parts by weight and the composite rare-earth oxide of 0.01 parts by weight
Alloy composite.
In other embodiments of the invention, the aluminium alloy can be with specifically: the aluminium containing 97 parts by weight, 1.05 weights
Measure the manganese of part, the silicon of 0.3 parts by weight, the iron of 0.55 parts by weight, the zinc of 0.15 parts by weight and the compound rare-earth oxygen of 0.03 parts by weight
The alloy composite of compound.
In other embodiment of the invention, the aluminium alloy can be with specifically: the aluminium containing 98 parts by weight, 1.1 weights
Measure the manganese of part, the silicon of 0.15 parts by weight, the iron of 0.15 parts by weight, the zinc of 0.1 parts by weight and the compound rare-earth oxygen of 0.08 parts by weight
The alloy composite of compound.
In still other embodiments of the invention, the aluminium alloy can be with specifically: the aluminium containing 98 parts by weight, 1.15 weights
Measure the manganese of part, the silicon of 0.25 parts by weight, the iron of 0.15 parts by weight, the zinc of 0.05 parts by weight and the compound rare-earth oxygen of 0.12 parts by weight
The alloy composite of compound.
In still other embodiments of the invention, the aluminium alloy can be with specifically: the aluminium containing 97 parts by weight, 1.2 weights
Measure the manganese of part, the silicon of 0.25 parts by weight, the iron of 0.25 parts by weight, the zinc of 0.1 parts by weight and the compound rare-earth oxygen of 0.16 parts by weight
The alloy composite of compound.
In still other embodiments of the invention, the aluminium alloy can be with specifically: the aluminium containing 96 parts by weight, 1.25 weights
Measure the manganese of part, the silicon of 0.4 parts by weight, the iron of 0.25 parts by weight, the zinc of 0.05 parts by weight and the compound rare-earth oxygen of 0.05 parts by weight
The alloy composite of compound.
The aluminium alloy formed as a result, by the alloy composite of aluminium, manganese, silicon, iron, zinc and composite rare-earth oxide, each group
/ proportion advanced optimize, and alloy is formed between each component, the synergistic effect for the generation that cooperates between each component
More sufficiently, and then the mechanical property of aluminium alloy significantly improves, corrosion resistance significantly improves.
According to an embodiment of the invention, the aluminium alloy does not contain metallic copper.As a result, compared in the related technology containing copper
Aluminium alloy, the aluminium alloy, can be further such that corrosion resistance might as well while mechanical property is good.
According to an embodiment of the invention, the elongation percentage of the aluminium alloy is not less than 20%.In some embodiments of the present invention
In, the elongation percentage of the aluminium alloy can be 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%
With 30% etc..The aluminium alloy elongation percentage is high as a result, and mechanical property is good.
According to an embodiment of the invention, the tensile strength of the aluminium alloy is not less than 115MPa.In some realities of the invention
Apply in example, the tensile strength of the aluminium alloy can for 115MPa, 118MPa, 120MPa, 121MPa, 122MPa, 123MPa,
124MPa, 125MPa, 126MPa, 127MPa, 128MPa, 129MPa and 130MPa etc..The aluminium alloy tensile strength as a result,
Height, mechanical property are good.
According to an embodiment of the invention, the time of the neutral salt spray test of the aluminium alloy is not less than 1000h.In the present invention
Some embodiments in, time of the neutral salt spray test of the aluminium alloy is 1000h, 1100h, 1200h, 1300h, 1400h,
1500h, 1600h, 1700h, 1800h etc..The aluminium alloy corrosion resistance is good as a result,.
According to an embodiment of the invention, the aluminium alloy the preparation method comprises the following steps: the raw material that the aluminium alloy will be prepared, such as aluminium
Ingot, alumal, rare earth oxide etc., according to the ratio between the parts by weight of each element, by melting, refining, casting, into rolling, eventually
It the processes such as rolls to prepare to form the aluminium alloy.Wherein, smelting temperature is 750 DEG C~780 DEG C, and specifically, smelting temperature can be
750 DEG C, 760 DEG C, 770 DEG C and 780 DEG C etc.；Cast temperature be 680 DEG C~690 DEG C, specifically, cast temperature can for 680 DEG C,
682 DEG C, 684 DEG C, 686 DEG C, 688 DEG C and 690 DEG C etc.；It is 470 DEG C~480 DEG C into temperature is rolled, specifically, can is into temperature is rolled
470 DEG C, 472 DEG C, 474 DEG C, 476 DEG C, 478 DEG C and 480 DEG C etc.；Finishing temperature is 270 DEG C~275 DEG C, specifically, finishing temperature
It can be 270 DEG C, 271 DEG C, 272 DEG C, 273 DEG C, 274 DEG C and 275 DEG C etc..It is simple, convenient as a result, it is easy to accomplish, it is easy to
Industrialized production, and the mechanical property of the aluminium alloy prepared and corrosion resistance are preferable.
In another aspect of the invention, the present invention provides a kind of tubing.According to an embodiment of the invention, referring to Fig.1,
At least part of the tubing 100 is formed by mentioned-above aluminium alloy (it should be noted that illustrating only in Fig. 1
The part-structure of the tubing 100 does not represent the overall structure of tubing, which is not limited to straight tube, such as in the tubing
In the structure of 100 another part, it is possible to have certain radian etc.).Inventors have found that cost is relatively low for the tubing 100, power
It is good to learn performance, and corrosion resistance is good.
According to an embodiment of the invention, the tubing 100 can be specifically used for the tubing in the heat exchanger of air-conditioning.The tubing
At least part be to be formed by mentioned-above aluminium alloy, therefore cost is relatively low, the mechanical property of the air-conditioner pipe can be made
Can be good, and corrosion resistance is good.
In an additional aspect of the present invention, the present invention provides a kind of heat exchangers.According to an embodiment of the invention, the heat exchange
Device includes mentioned-above tubing.Inventors have found that the corrosion resistance of the heat exchanger is good, intensity is high, is during transportation
Make to collide and be also unlikely to deform or damage, the service life is long, and service performance is good.
According to an embodiment of the invention, the heat exchanger 10 includes mentioned-above tubing 100 referring to Fig. 2.Except front institute
Outside the tubing 100 stated, it will be understood by those skilled in the art that the heat exchanger 10 further includes the usual heat exchangers such as fin, side plate
Structure, no longer excessively repeat herein.
According to an embodiment of the invention, the type of the heat exchanger can exchange heat for movable tube sheets heat exchanger, fixed tube sheet type
Device, U-tube sheet heat exchanger and plate heat exchanger etc., particularly suitable for the heater of air-conditioning or refrigeration equipment etc., cooler,
Condenser, evaporator and reboiler etc., have wide range of applications.
In an additional aspect of the present invention, the present invention provides a kind of air-conditionings.According to an embodiment of the invention, the air-conditioning packet
Include mentioned-above tubing.Inventors have found that the air-conditioning service life is long, service performance is good, and corrosion resistance is good.
According to an embodiment of the invention, the air-conditioning can be Separated wall type air-conditioning, or separated floor air-conditioning,
It can also be mobile air conditioner etc..It has wide range of applications as a result,.
According to an embodiment of the invention, the component, structure in the air-conditioning are the component and structure of conventional air-conditioning, herein not
It is repeated after more.
In another aspect of the invention, the present invention provides a kind of refrigeration equipments.According to an embodiment of the invention, the system
Cool equipment includes mentioned-above tubing.Inventors have found that the refrigeration equipment service life is long, service performance is good, and corrosion resistance is good.
According to an embodiment of the invention, the refrigeration equipment can be refrigerator, refrigerator-freezer and refrigeration machine etc..Application range as a result,
Extensively.
According to an embodiment of the invention, the component and structure in the refrigeration equipment are the component and structure of refrigeration equipment,
It no longer excessively repeats herein.
The embodiment of the present invention is described below in detail.
Embodiment 1
Aluminium alloy are as follows: the aluminium containing 98 parts by weight, the manganese of 1 parts by weight, the silicon of 0.15 parts by weight, 0.15 parts by weight iron,
The alloy composite of the zinc of 0.05 parts by weight, the lanthana of 0.01 parts by weight and cerium oxide (mass ratio 1.5:1).
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 5mm is fabricated to, to it
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Embodiment 2
Aluminium alloy are as follows: the aluminium containing 97 parts by weight, the manganese of 1.05 parts by weight, the silicon of 0.3 parts by weight, 0.55 parts by weight
Iron, the zinc of 0.15 parts by weight, the lanthana of 0.03 parts by weight and cerium oxide (mass ratio 1.5:1) alloy composite.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, be fabricated to the aluminium bar that outer diameter is 4.5mm, it is right
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Embodiment 3
Aluminium alloy are as follows: the aluminium containing 98 parts by weight, the manganese of 1.1 parts by weight, the silicon of 0.15 parts by weight, 0.15 parts by weight
Iron, the zinc of 0.1 parts by weight, the lanthana of 0.08 parts by weight and cerium oxide (mass ratio 1.2:1) alloy composite.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 4mm is fabricated to, to it
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Embodiment 4
Aluminium alloy are as follows: the aluminium containing 98 parts by weight, the manganese of 1.15 parts by weight, the silicon of 0.25 parts by weight, 0.15 parts by weight
Iron, the zinc of 0.05 parts by weight, the lanthana of 0.12 parts by weight and cerium oxide (mass ratio 1.2:1) alloy composite.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 6mm is fabricated to, to it
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Embodiment 5
Aluminium alloy are as follows: the aluminium containing 97 parts by weight, the manganese of 1.2 parts by weight, the silicon of 0.25 parts by weight, 0.25 parts by weight
Iron, the zinc of 0.1 parts by weight, the lanthana of 0.16 parts by weight and cerium oxide (mass ratio 1:1) alloy composite.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, be fabricated to the aluminium bar that outer diameter is 6.5mm, it is right
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Embodiment 6
Aluminium alloy are as follows: the aluminium containing 96 parts by weight, the manganese of 1.25 parts by weight, the silicon of 0.4 parts by weight, 0.25 parts by weight
Iron, the zinc of 0.05 parts by weight, the lanthana of 0.05 parts by weight and cerium oxide (mass ratio 1:1) alloy composite.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 7mm is fabricated to, to it
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Embodiment 7
Aluminium alloy are as follows: the aluminium containing 98 parts by weight, the manganese of 1.1 parts by weight, the silicon of 0.15 parts by weight, 0.15 parts by weight
Iron, the zinc of 0.1 parts by weight, the cerium oxide of 0.08 parts by weight and praseodymium oxide (mass ratio 1.2:1) alloy composite.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 4mm is fabricated to, to it
Carry out elongation percentage test, tensile strength test and neutral salt spray test.
Embodiment 8
Aluminium alloy are as follows: the aluminium containing 98 parts by weight, the manganese of 1.1 parts by weight, the silicon of 0.15 parts by weight, 0.15 parts by weight
Iron, the zinc of 0.1 parts by weight, the lanthana of 0.08 parts by weight and praseodymium oxide (mass ratio 1.2:1) alloy composite.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 4mm is fabricated to, to it
Carry out elongation percentage test, tensile strength test and neutral salt spray test.
Comparative example 1
Aluminium alloy are as follows: the aluminium containing 98 parts by weight, the manganese of 1.1 parts by weight, the silicon of 0.15 parts by weight, 0.15 parts by weight
The alloy composite of the copper of iron, the zinc of 0.1 parts by weight and 0.08 parts by weight.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 4mm is fabricated to, to it
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Comparative example 2
Aluminium alloy are as follows: the aluminium containing 98 parts by weight, the manganese of 1.26 parts by weight, the silicon of 0.15 parts by weight, 0.15 parts by weight
Iron, 0.1 parts by weight zinc alloy composite.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 4mm is fabricated to, to it
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Comparative example 3
Aluminium alloy are as follows: the aluminium containing 98 parts by weight, the manganese of 1.1 parts by weight, the silicon of 0.15 parts by weight, 0.15 parts by weight
The alloy composite of the lanthana of iron, the zinc of 0.1 parts by weight and 0.08 parts by weight.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 4mm is fabricated to, to it
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Comparative example 4
Aluminium alloy are as follows: the aluminium containing 98 parts by weight, the manganese of 1.1 parts by weight, the silicon of 0.15 parts by weight, 0.15 parts by weight
The alloy composite of the cerium oxide of iron, the zinc of 0.1 parts by weight and 0.08 parts by weight.
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 4mm is fabricated to, to it
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Comparative example 5
Aluminium alloy are as follows: the aluminium containing 98 parts by weight, the manganese of 1.1 parts by weight, the silicon of 0.15 parts by weight, 0.15 parts by weight
The alloy composite of iron, the lanthana of 0.08 parts by weight and cerium oxide (mass ratio 1.2:1).
The aluminium alloy is smelting, refining, casting, into roll, the processes such as finish to gauge, the aluminium bar that outer diameter is 4mm is fabricated to, to it
It carries out elongation percentage test, tensile strength test and neutral salt spray test, test result and is shown in Table 1.
Performance test methods:
1, it tensile strength: is carried out referring to " GB T228.1-2010 ".
2, it elongation percentage: is carried out referring to " GB T228.1-2010 ".
3, it neutral salt spray test: is carried out referring to " GB T10125-2012 ".
1 1~embodiment of embodiment 6 of table, the performance test results of 1~comparative example of comparative example 5
As shown in Table 1, the elongation percentage of 1~embodiment of the embodiment of the present invention 6 and tensile strength are high, neutral salt spray test
Time is long.The mechanical property (such as elongation percentage and tensile strength) of 1~embodiment of embodiment 6 is higher than 1~comparative example of comparative example 5, in
The property salt mist experiment time is longer than 1~comparative example of comparative example 5.
In addition, inventor has found after the performance to aluminium alloy of the invention is furtherd investigate:
The elongation percentage of aluminium alloy containing composite rare-earth oxide, tensile strength are higher than the only rare earth oxygen containing single kind
The neutral salt spray test time of the elongation percentage of the aluminium alloy of compound, tensile strength, the aluminium alloy containing composite rare-earth oxide is long
In the neutral salt spray test time of the aluminium alloy of the rare earth oxide only containing single kind.
Further, the elongation percentage and tensile strength of the aluminium alloy containing lanthana and cerium oxide are higher, and neutral salt spray is real
It is longer to test the time.
Further, the composite material in 1~embodiment of embodiment 6 is proportion of the inventor to each component in aluminium alloy
It is obtained after being optimized.The mechanical property of aluminium alloy significantly improves as a result, corrosion resistance significantly improves.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (11)
1. a kind of aluminium alloy characterized by comprising
Aluminium, zinc and composite rare-earth oxide.
2. aluminium alloy according to claim 1, which is characterized in that the composite rare-earth oxide includes lanthana, oxidation
At least two in cerium, praseodymium oxide and neodymia.
3. aluminium alloy according to claim 1 characterized by comprising
Alloy composite containing aluminium, zinc, lanthana and cerium oxide.
4. aluminium alloy according to claim 1, which is characterized in that not cupric.
5. aluminium alloy according to claim 1, which is characterized in that further comprise:
Manganese, silicon and iron.
6. aluminium alloy according to claim 5 characterized by comprising
96 parts by weight~98 parts by weight aluminium；
1.0 parts by weight~1.25 parts by weight manganese；
0.15 parts by weight~0.4 parts by weight silicon；
0.15 parts by weight~0.55 parts by weight iron；
0.05 parts by weight~0.15 parts by weight zinc；With
0.01 parts by weight~0.16 parts by weight composite rare-earth oxide.
7. aluminium alloy described according to claim 1~any one of 6, which is characterized in that the aluminium alloy meets the following conditions
At least one of:
Elongation percentage is not less than 20%；
Tensile strength is not less than 115MPa；
The time of neutral salt spray test is not less than 1000h.
8. a kind of tubing, which is characterized in that at least part of the tubing is by according to any one of claims 1 to 7
What aluminium alloy was formed.
9. a kind of heat exchanger, which is characterized in that including tubing according to any one of claims 8.
10. a kind of air-conditioning, which is characterized in that including tubing as claimed in claim 9.
11. a kind of refrigeration equipment, which is characterized in that including tubing as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119136.9A CN109234578A (en) | 2018-09-25 | 2018-09-25 | Aluminium alloy, tubing, heat exchanger, air-conditioning and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119136.9A CN109234578A (en) | 2018-09-25 | 2018-09-25 | Aluminium alloy, tubing, heat exchanger, air-conditioning and refrigeration equipment |
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| CN109234578A true CN109234578A (en) | 2019-01-18 |
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| CN201811119136.9A Pending CN109234578A (en) | 2018-09-25 | 2018-09-25 | Aluminium alloy, tubing, heat exchanger, air-conditioning and refrigeration equipment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286680A (en) * | 2011-09-02 | 2011-12-21 | 上海交通大学 | Rare earth aluminum alloy used for heat exchanger fin and preparation method thereof |
| CN103540879A (en) * | 2013-09-24 | 2014-01-29 | 李伟 | Method for treating Pr6O11 reinforced Al-Si-Zn aluminum alloy |
| CN105274405A (en) * | 2015-11-04 | 2016-01-27 | 绍兴市质量技术监督检测院 | Rare earth aluminum alloy and preparation method thereof |
-
2018
- 2018-09-25 CN CN201811119136.9A patent/CN109234578A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286680A (en) * | 2011-09-02 | 2011-12-21 | 上海交通大学 | Rare earth aluminum alloy used for heat exchanger fin and preparation method thereof |
| CN103540879A (en) * | 2013-09-24 | 2014-01-29 | 李伟 | Method for treating Pr6O11 reinforced Al-Si-Zn aluminum alloy |
| CN105274405A (en) * | 2015-11-04 | 2016-01-27 | 绍兴市质量技术监督检测院 | Rare earth aluminum alloy and preparation method thereof |
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