CN106636768A - Rare earth aluminum alloy refrigerant section and preparation method thereof - Google Patents
Rare earth aluminum alloy refrigerant section and preparation method thereof Download PDFInfo
- Publication number
- CN106636768A CN106636768A CN201611027925.0A CN201611027925A CN106636768A CN 106636768 A CN106636768 A CN 106636768A CN 201611027925 A CN201611027925 A CN 201611027925A CN 106636768 A CN106636768 A CN 106636768A
- Authority
- CN
- China
- Prior art keywords
- rare earth
- aluminium alloy
- section bar
- earth aluminium
- refrigerant section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
-
- 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
-
- 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
- C22F1/043—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 silicon as the next major constituent
-
- 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
-
- 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
- C22F1/05—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 of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
Abstract
The invention discloses a rare earth aluminum alloy refrigerant section and a preparation method thereof. The rare earth aluminum alloy refrigerant section is made of an Al-Fe-Si-Mg-S-R aluminum alloy, and comprises the following components in percentage by weight: 0.02-0.4 percent of Fe, 0.05-0.15 percent of Si, 0.05-0.12 percent of Mg, 0.02-0.25 percent of S, 0.005-0.25 percent of R, and the balance of Al. Compared with a copper refrigerant section, the rare earth aluminum alloy refrigerant section is low in cost; the rare earth aluminum alloy refrigerant section has thermal conductivity, approaching to that of the copper refrigerant section, has mechanical and physical properties higher than those of the copper refrigerant section, has thermal conductivity higher than that of a common aluminium alloy or pure aluminium refrigerant section, has mechanical and physical properties higher than those of the common aluminium alloy or pure aluminium refrigerant section, and can be used in the refrigeration field.
Description
Technical field
The present invention relates to a kind of refrigerant section bar, more particularly to a kind of rare earth aluminium alloy refrigerant section bar and preparation method thereof.
Background technology
For a long time refrigerant section bar is the critical piece in refrigeration plant manufacture, installation, maintenance, in refrigerator, air-conditioning, freezing
Storehouse, industrial refrigeration, heat, the refrigerating field such as automobile refrigerating is required part.Particularly in recent years national economy is realized and held
Continuous rapid growth, foundation engineering construction and the growth of scientific research engineering project and household electrical appliance are developed rapidly, to refrigeration plant band
Carry out more demands, the thing followed is that refrigerant section bar demand is increased and put forward higher requirement.
The refrigerant section bar great majority that at present refrigerating field is used all are made with copper material, and minority uses common aluminum alloy
Or made by fine aluminium material.Refrigerant section bar is produced for this needs substantial amounts of copper raw material, and China is the country of a lean copper, annual work
Copper raw material needed for industry is in a large number the task of top priority to the deposit of national this strategic materials by import.And the bauxite resource of China
Storage level is enriched, and a kind of rare earth aluminium alloy refrigerant section bar is researched and developed as thinking for copper with aluminium, and in refrigerating field rare earth aluminium alloy is used
Refrigerant section bar will save substantial amounts of copper material for country, reduce production cost.But, rare earth aluminium alloy refrigerant type is there is no at present
The report of material.
The content of the invention
The present invention goal of the invention be：For the problem that prior art is present, there is provided a kind of rare earth aluminium alloy refrigerant type
Material and preparation method thereof, the rare earth aluminium alloy refrigerant section bar has and copper material refrigerant type than copper material refrigerant section bar low cost
The close thermal conductivity factor of material and the mechanical and physical performance more excellent than copper material refrigerant section bar, than common aluminum alloy or fine aluminium material
The higher thermal conductivity factor of refrigerant section bar and more preferable mechanical and physical performance.
To achieve these goals, the technical solution used in the present invention is：
A kind of rare earth aluminium alloy refrigerant section bar, the material of the rare earth aluminium alloy refrigerant section bar is Al-Fe-Si-Mg-S-R
Aluminium alloy, its formula composition and weight proportion are：Fe=0.02wt%～0.4wt%, Si=0.05wt%～0.15wt%, Mg
=0.05wt%～0.12wt%, S=0.02wt%～0.25wt%, R=0.005wt%～0.25wt%, balance of Al；Institute
It is one or more element combinations in V, Ti, Cr, Mn and Ni to state S, and the R is one or more element group in rare earth element
Close.
The tensile strength of the Al-Fe-Si-Mg-S-R aluminium alloys is more than or equal to 200Mpa, and elongation at break is more than or equal to
20%, thermal conductivity factor is more than or equal to 260W/m.K, and average creep speed is less than or equal to 6 × 10-2%/h, tired bending number of times is more than
Equal to 30.
The preparation method of above-mentioned rare earth aluminium alloy refrigerant section bar, comprises the following steps：
(1) by the formula of the Al-Fe-Si-Mg-S-R aluminium alloys each element is matched somebody with somebody to postpone to be put in constant temperature furnace cupola and is melted
Refining, obtains melt rare earth aluminium alloy, then melt rare earth aluminium alloy is cast, and obtains rare earth aluminium alloy ingot casting；
(2) the rare earth aluminium alloy ingot casting for obtaining step (1) carries out successively solution treatment, Ageing Treatment and sofening treatment；
(3) the rare earth aluminium alloy ingot casting after step (2) process is rolled, obtains preparing rare earth aluminium alloy refrigerant section bar
Stock；
(4) stock of the rare earth aluminium alloy refrigerant section bar for obtaining step (3) makes required section bar, then by rare earth aluminium
Alloy refrigerant section bar makes annealing treatment, and the carrying out that need to be finished finishes, and obtains rare earth aluminium alloy refrigerant section bar finished product.
As preferred technical scheme, in the step (1), adopt purity for 99.5%～99.9% fine aluminium as base
Body aluminium, to add alfer, alusil alloy, almag, aluminium S alloys and aluminium R alloys in the way of be respectively configured Fe, Si, Mg,
S and R element.
Used as preferred technical scheme, in the step (1), smelting temperature is less than 760 DEG C, and casting temperature is 680 DEG C
Below.
Used as preferred technical scheme, in the step (2), the temperature of solution treatment is 450 DEG C～650 DEG C, and the time is
45～60min；The temperature of Ageing Treatment is 300 DEG C～480 DEG C, and the time is 1h～4h；The temperature of sofening treatment be 145 DEG C～
160 DEG C, the time is 3h～6h.
Used as preferred technical scheme, in the step (4), the temperature of annealing is 400 DEG C～420 DEG C, and the time is
18～28h.
The beneficial effects of the present invention is：
The present invention is adopted based on aluminium, with the addition of micro iron, and iron can improve the mechanical strength and draftability of aluminium alloy
Can, tensile strength, yield limit and the heat resistance of aluminium base are improved, carry heavy alloyed plasticity, Aluminum in Alloy and iron precipitation portion
Dividing has Al3Fe, Al2Fe3、Al4Fe5Compound, makes Fe solid solution less more in order to carry in aluminium base through the high temperature anneal
High thermal conductivity coefficient, disperse educt mutually can strengthen the anti-fatigue performance of alloy and the heat resistance of hot operation.
The present invention also added micro Mg, can well improve heat conductivility so that primary aluminum base material matter thermal conductivity factor is obtained
To significantly improve, at the same reduce on because plus iron after on thermal conductivity factor affect and than primary aluminum base raising 5%～15% thermal conductivity factor, and
Do not lose because adding raising of the iron to mechanical and physical performance, make Mg solid solution less more orderly in aluminium base through the high temperature anneal
To improve conductance.
The present invention also added micro S compositions, and S is one or more element combinations in V, Ti, Cr, Mn and Ni, S into
The addition of part can carry heavy alloyed intensity and high temperature creep property, and can improve anti-fatigue performance, help raising Fe, Mg solid
Solution ordered arrangement in aluminium base；Ti, Ni can also improve the processing characteristics of alloy, and V, Mn can be improved with improve mechanical strength
Corrosion resistance.
The present invention also added the rare earth element of micro R compositions, and the rare-earth element R is lanthanum (La), cerium (Ce), praseodymium
(Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium
(Yb), one or more element combinations in lutetium (Lu), scandium (Sc) and yttrium (Y)；The R not only can put forward heavy alloyed thermal conductivity
Can, moreover it is possible to carry heavy alloyed anti-fatigue performance, extend the service life of refrigerant section bar, carry heavy alloyed superplasticity and calorifics
Can, improve the welding performance of alloy, significantly improve Fe, Mg solid solution in aluminium base ordered arrangement to increase thermal conductivity factor.
The present invention makes it have preferable heat conduction and mechanical and physical performance by the matched well of above-mentioned elemental composition, and makes
Solution treatment, Ageing Treatment and sofening treatment during standby then further optimizes mechanical performance and heat conductivility；The present invention
Rare earth aluminium alloy refrigerant section bar than copper material refrigerant section bar low cost, but have the thermal conductivity factor close with copper material refrigerant section bar
And the mechanical and physical performance more excellent than copper material refrigerant section bar, than common aluminum alloy or fine aluminium material refrigerant section bar is higher leads
Hot coefficient and more preferable mechanical and physical performance, can extensively be replaced in refrigerating field using the rare earth aluminium alloy refrigerant section bar of the present invention
For copper material refrigerant section bar.
Description of the drawings
Fig. 1 is the process chart for manufacturing rare earth aluminium alloy refrigerant section bar；
Fig. 2 is rare earth aluminium alloy refrigerant tubing schematic diagram；
Fig. 3 is rare earth aluminium alloy refrigerant sheet material schematic diagram；
Fig. 4 is rare earth aluminium alloy refrigerant valve schematic diagram；
Fig. 5 is that rare earth aluminium alloy contrasts metallograph.
Specific embodiment
All features disclosed in this specification, in addition to mutually exclusive feature and/or step, can be with any
Mode is combined.The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that discussed below
Embodiment be only the present invention a part of embodiment, rather than the embodiment of whole.Based on embodiments of the invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention's
The scope of protection.
Embodiment 1
The present embodiment manufactures a kind of rare earth aluminium alloy refrigerant tubing, it is adaptable to the condenser of the indoor and outdoor body of refrigeration machine and
Tubing needed for radiator, is shown in Fig. 2.
With reference to shown in Fig. 1, the preparation method of rare earth aluminium alloy refrigerant tubing is comprised the following steps：
(1) Al-Fe-Si-Mg-S-R aluminium alloys, its formula composition and weight proportion are：Fe=0.39wt%, Si=
0.05wt%, Mg=0.05wt%, S=0.2wt%, R=0.24wt%, balance of Al；The S is V, and the R is rare earth unit
The combination of plain 0.12wt%La and 0.12wt%Ce；
Adopt purity for 99.8% fine aluminium as base aluminum, to add alfer, alusil alloy, almag, aluminium S
The mode of alloy and aluminium R alloys is respectively configured Fe, Si, Mg, S and R element, by matching somebody with somebody for the Al-Fe-Si-Mg-S-R aluminium alloys
Just each element is matched somebody with somebody to postpone and be put into melting in constant temperature furnace cupola, smelting temperature is 760 DEG C, obtains melt rare earth aluminium alloy, molten
Refining agent is added in body rare earth aluminium alloy and is stirred, then stand insulation 30min, then melt rare earth aluminium alloy is cast
Make, casting temperature is 650 DEG C, obtains rare earth aluminium alloy ingot casting；
(2) first the rare earth aluminium alloy ingot casting that step (1) is obtained is carried out into solution treatment, the temperature of solution treatment is 650
DEG C, the time is 60min, and solution treatment can improve the orderly of the mechanical strength of aluminium alloy and high-temperature creep resistance and solid solution
Property；Then Ageing Treatment is carried out to the rare earth aluminium alloy ingot casting after solution treatment, the temperature of Ageing Treatment is 480 DEG C, the time is
4h, by Ageing Treatment the performance of rare earth aluminium alloy is uniformly distributed, and particularly improves the high-temperature creep resistance of rare earth aluminium alloy
Energy；Carry out sofening treatment to the rare earth aluminium alloy after Ageing Treatment again, the temperature of sofening treatment is 160 DEG C, and the time is 6h, lazy
- temperature-fall period of lowering the temperature-be incubated is carried out under property gas, sofening treatment can eliminate the residual stress in process；By above-mentioned
Heat treatment optimizes the mechanical performance and heat conductivility of rare earth aluminium alloy, improve the ductility of rare earth aluminium alloy with it is antifatigue
Performance, is shown in the metallograph contrast of Fig. 5；
(3) the rare earth aluminium alloy ingot casting after step (2) process is rolled, obtains preparing rare earth aluminium alloy refrigerant tubing
Stock；Its tensile strength is 210Mpa, and elongation at break is 25%, and thermal conductivity factor is 270W/m.K, and average creep speed is 6
×10-2%/h, tired bending number of times is 36；
(4) stock of the rare earth aluminium alloy refrigerant tubing for obtaining step (3) makes the tubing of required model, then will be dilute
Native aluminium alloy refrigerant tubing annealing, the temperature of annealing is 420 DEG C, and the time is 24h, then through chemistry, machinery, physics
Etc. performance is after the assay was approved rare earth aluminium alloy refrigerant pipe finished.
Embodiment 2
The present embodiment manufactures a kind of rare earth aluminium alloy refrigerant tubing, it is adaptable to the condenser of the indoor and outdoor body of refrigeration machine and
Tubing needed for radiator, is shown in Fig. 2.
With reference to shown in Fig. 1, the preparation method of rare earth aluminium alloy refrigerant tubing is comprised the following steps：
(1) Al-Fe-Si-Mg-S-R aluminium alloys, its formula composition and weight proportion are：Fe=0.31wt%, Si=
0.07wt%, Mg=0.055wt%, S=0.21wt%, R=0.005wt%, balance of Al；The S is V, and the R is rare earth
Elements C e；
Adopt purity for 99.8% fine aluminium as base aluminum, to add alfer, alusil alloy, almag, aluminium S
The mode of alloy and aluminium R alloys is respectively configured Fe, Si, Mg, S and R element, by matching somebody with somebody for the Al-Fe-Si-Mg-S-R aluminium alloys
Just each element is matched somebody with somebody to postpone and be put into melting in constant temperature furnace cupola, smelting temperature is 740 DEG C, obtains melt rare earth aluminium alloy, molten
Refining agent is added in body rare earth aluminium alloy and is stirred, then stand insulation 30min, then melt rare earth aluminium alloy is cast
Make, casting temperature is 650 DEG C, obtains rare earth aluminium alloy ingot casting；
(2) first the rare earth aluminium alloy ingot casting that step (1) is obtained is carried out into solution treatment, the temperature of solution treatment is 620
DEG C, the time is 60min, and solution treatment can improve the orderly of the mechanical strength of aluminium alloy and high-temperature creep resistance and solid solution
Property；Then Ageing Treatment is carried out to the rare earth aluminium alloy ingot casting after solution treatment, the temperature of Ageing Treatment is 470 DEG C, the time is
3.6h, by Ageing Treatment the performance of rare earth aluminium alloy is uniformly distributed, and particularly improves the high temperature and creep resistance of rare earth aluminium alloy
Performance；Carry out sofening treatment to the rare earth aluminium alloy after Ageing Treatment again, the temperature of sofening treatment is 160 DEG C, and the time is 6h,
- temperature-fall period of lowering the temperature-be incubated is carried out under inert gas, sofening treatment can eliminate the residual stress in process；
(3) the rare earth aluminium alloy ingot casting after step (2) process is rolled, obtains preparing rare earth aluminium alloy refrigerant tubing
Stock；Its tensile strength is 225Mpa, and elongation at break is 24%, and thermal conductivity factor is 266W/m.K, and average creep speed is
5.8×10-2%/h, tired bending number of times is 35；
(4) stock of the rare earth aluminium alloy refrigerant tubing for obtaining step (3) makes the tubing of required model, then will be dilute
Native aluminium alloy refrigerant tubing annealing, the temperature of annealing is 420 DEG C, and the time is 23.5h, then through chemistry, machinery, thing
The performances such as reason are after the assay was approved rare earth aluminium alloy refrigerant pipe finished.
Embodiment 3
The present embodiment manufactures a kind of rare earth aluminium alloy refrigerant sheet material, it is adaptable to the condenser of the indoor and outdoor body of refrigeration machine and
The sheet material of welding, is shown in Fig. 3 needed for radiator.
With reference to shown in Fig. 1, the preparation method of rare earth aluminium alloy refrigerant sheet material is comprised the following steps：
(1) Al-Fe-Si-Mg-S-R aluminium alloys, its formula composition and weight proportion are：Fe=0.22wt%, Si=
0.09wt%, Mg=0.065wt%, S=0.18wt%, R=0.11wt%, balance of Al；The S be 0.13wt%Ti and
The combination of 0.05wt%Ni, the R is rare earth element y；
Adopt purity for 99.8% fine aluminium as base aluminum, to add alfer, alusil alloy, almag, aluminium S
The mode of alloy and aluminium R alloys is respectively configured Fe, Si, Mg, S and R element, by matching somebody with somebody for the Al-Fe-Si-Mg-S-R aluminium alloys
Just each element is matched somebody with somebody to postpone and be put into melting in constant temperature furnace cupola, smelting temperature is 720 DEG C, obtains melt rare earth aluminium alloy, molten
Refining agent is added in body rare earth aluminium alloy and is stirred, then stand insulation 30min, then melt rare earth aluminium alloy is cast
Make, casting temperature is 650 DEG C, obtains rare earth aluminium alloy ingot casting；
(2) first the rare earth aluminium alloy ingot casting that step (1) is obtained is carried out into solution treatment, the temperature of solution treatment is 590
DEG C, the time is 55min, and solution treatment can improve the orderly of the mechanical strength of aluminium alloy and high-temperature creep resistance and solid solution
Property；Then Ageing Treatment is carried out to the rare earth aluminium alloy ingot casting after solution treatment, the temperature of Ageing Treatment is 450 DEG C, the time is
3.3h, by Ageing Treatment the performance of rare earth aluminium alloy is uniformly distributed, and particularly improves the high temperature and creep resistance of rare earth aluminium alloy
Performance；Carry out sofening treatment to the rare earth aluminium alloy after Ageing Treatment again, the temperature of sofening treatment is 155 DEG C, and the time is 5.5h,
- temperature-fall period of lowering the temperature-be incubated is carried out under an inert gas, and sofening treatment can eliminate the residual stress in process；
(3) the rare earth aluminium alloy ingot casting after step (2) process is rolled, obtains preparing rare earth aluminium alloy refrigerant sheet material
Stock；Its tensile strength is 236Mpa, and elongation at break is 23%, and thermal conductivity factor is 265W/m.K, and average creep speed is
5.3×10-2%/h, tired bending number of times is 34；
(4) stock of the rare earth aluminium alloy refrigerant sheet material for obtaining step (3) makes the sheet material of required model, then will be dilute
Native aluminium alloy refrigerant sheet material annealing, the temperature of annealing is 410 DEG C, and the time is 23h, then through chemistry, machinery, physics
Etc. performance is after the assay was approved rare earth aluminium alloy refrigerant sheet material finished product.
Embodiment 4
The present embodiment manufactures a kind of rare earth aluminium alloy refrigerant valve, it is adaptable to the condenser of the indoor and outdoor body of refrigeration machine and
The valve of welding, is shown in Fig. 4 needed for radiator.
With reference to shown in Fig. 1, the preparation method of rare earth aluminium alloy refrigerant valve is comprised the following steps：
(1) Al-Fe-Si-Mg-S-R aluminium alloys, its formula composition and weight proportion are：Fe=0.12wt%, Si=
0.12wt%, Mg=0.081wt%, S=0.12wt%, R=0.02wt%, balance of Al；The S is V, and the R is rare earth
Element La；
Adopt purity for 99.8% fine aluminium as base aluminum, to add alfer, alusil alloy, almag, aluminium S
The mode of alloy and aluminium R alloys is respectively configured Fe, Si, Mg, S and R element, by matching somebody with somebody for the Al-Fe-Si-Mg-S-R aluminium alloys
Just each element is matched somebody with somebody to postpone and be put into melting in constant temperature furnace cupola, smelting temperature is 730 DEG C, obtains melt rare earth aluminium alloy, molten
Refining agent is added in body rare earth aluminium alloy and is stirred, then stand insulation 30min, then melt rare earth aluminium alloy is cast
Make, casting temperature is 650 DEG C, obtains rare earth aluminium alloy ingot casting；
(2) first the rare earth aluminium alloy ingot casting that step (1) is obtained is carried out into solution treatment, the temperature of solution treatment is 560
DEG C, the time is 55min, and solution treatment can improve the orderly of the mechanical strength of aluminium alloy and high-temperature creep resistance and solid solution
Property；Then Ageing Treatment is carried out to the rare earth aluminium alloy ingot casting after solution treatment, the temperature of Ageing Treatment is 430 DEG C, the time is
3h, by Ageing Treatment the performance of rare earth aluminium alloy is uniformly distributed, and particularly improves the high-temperature creep resistance of rare earth aluminium alloy
Energy；Carry out sofening treatment to the rare earth aluminium alloy after Ageing Treatment again, the temperature of sofening treatment is 155 DEG C, and the time is 5.5h,
- temperature-fall period of lowering the temperature-be incubated is carried out under inert gas, sofening treatment can eliminate the residual stress in process；
(3) the rare earth aluminium alloy ingot casting after step (2) process is rolled, obtains preparing rare earth aluminium alloy refrigerant valve
Stock；Its tensile strength is 201Mpa, and elongation at break is 22%, and thermal conductivity factor is 262W/m.K, and average creep speed is
5.1×10-2%/h, tired bending number of times is 33；
(4) stock of the rare earth aluminium alloy refrigerant valve for obtaining step (3) makes the valve of required model, then will be dilute
Native aluminium alloy refrigerant valve annealing, the temperature of annealing is 415 DEG C, and the time is 22h, the physics of model for needed for ensureing
Size is again through fine-processing technique, then the performance such as process chemistry, machinery, physics is after the assay was approved rare earth aluminium alloy refrigerant valve
Door finished product.
The rare earth aluminium alloy refrigerant section bar of the present invention, can be tubing, sheet material, Guan Tong, valve, connector and other abnormal shapes
The refrigerant section bar of type body, for different refrigerant section bars are prepared, selects element composition and proportioning in formula range.
Finally illustrate, above example is only unrestricted to illustrate technical scheme, although by ginseng
According to the preferred embodiments of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
To it to make various changes in the form and details, without departing from the present invention that appended claims are limited
Spirit and scope.
Claims (7)
1. a kind of rare earth aluminium alloy refrigerant section bar, it is characterised in that：The material of the rare earth aluminium alloy refrigerant section bar is Al-Fe-
Si-Mg-S-R aluminium alloys, its formula composition and weight proportion are：Fe=0.02wt%～0.4wt%, Si=0.05wt%～
0.15wt%, Mg=0.05wt%～0.12wt%, S=0.02wt%～0.25wt%, R=0.005wt%～0.25wt%,
Balance of Al；The S is one or more element combinations in V, Ti, Cr, Mn and Ni, and the R is the one kind in rare earth element
Or multiple element combination.
2. rare earth aluminium alloy refrigerant section bar according to claim 1, it is characterised in that：The Al-Fe-Si-Mg-S-R aluminium
The tensile strength of alloy is more than or equal to 200Mpa, and elongation at break is more than or equal to 20%, and thermal conductivity factor is more than or equal to 260W/m.K,
Average creep speed is less than or equal to 6 × 10-2%/h, tired bending number of times is more than or equal to 30.
3. the preparation method of the rare earth aluminium alloy refrigerant section bar described in claim 1 or 2, it is characterised in that：Comprise the following steps：
(1) by the formula of the Al-Fe-Si-Mg-S-R aluminium alloys each element is matched somebody with somebody to postpone and is put into melting in constant temperature furnace cupola, obtained
To melt rare earth aluminium alloy, then melt rare earth aluminium alloy is cast, obtained rare earth aluminium alloy ingot casting；
(2) the rare earth aluminium alloy ingot casting for obtaining step (1) carries out successively solution treatment, Ageing Treatment and sofening treatment；
(3) the rare earth aluminium alloy ingot casting after step (2) process is rolled, obtains preparing the embryo of rare earth aluminium alloy refrigerant section bar
Material；
(4) stock of the rare earth aluminium alloy refrigerant section bar for obtaining step (3) makes required section bar, then by rare earth aluminium alloy
Refrigerant section bar makes annealing treatment, and the carrying out that need to be finished finishes, and obtains rare earth aluminium alloy refrigerant section bar finished product.
4. the preparation method of rare earth aluminium alloy refrigerant section bar according to claim 3, it is characterised in that：The step (1)
In, adopt purity for 99.5%～99.9% fine aluminium as base aluminum, with add alfer, alusil alloy, almag,
The mode of aluminium S alloys and aluminium R alloys is respectively configured Fe, Si, Mg, S and R element.
5. the preparation method of rare earth aluminium alloy refrigerant section bar according to claim 3, it is characterised in that：The step (1)
In, smelting temperature is less than 760 DEG C, and casting temperature is less than 680 DEG C.
6. the preparation method of rare earth aluminium alloy refrigerant section bar according to claim 3, it is characterised in that：The step (2)
In, the temperature of solution treatment is 450 DEG C～650 DEG C, and the time is 45～60min；The temperature of Ageing Treatment is 300 DEG C～480 DEG C,
Time is 1h～4h；The temperature of sofening treatment is 145 DEG C～160 DEG C, and the time is 3h～6h.
7. the preparation method of rare earth aluminium alloy refrigerant section bar according to claim 3, it is characterised in that：The step (4)
In, the temperature of annealing is 400 DEG C～420 DEG C, and the time is 18～28h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027925.0A CN106636768A (en) | 2016-11-18 | 2016-11-18 | Rare earth aluminum alloy refrigerant section and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027925.0A CN106636768A (en) | 2016-11-18 | 2016-11-18 | Rare earth aluminum alloy refrigerant section and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106636768A true CN106636768A (en) | 2017-05-10 |
Family
ID=58807367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611027925.0A Pending CN106636768A (en) | 2016-11-18 | 2016-11-18 | Rare earth aluminum alloy refrigerant section and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106636768A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004002983A (en) * | 2002-03-27 | 2004-01-08 | Kobe Steel Ltd | Bat made of aluminium alloy |
| CN103667817A (en) * | 2013-12-27 | 2014-03-26 | 安徽欣意电缆有限公司 | Al-Mg aluminum alloy, preparation method thereof and aluminum alloy cable |
| CN103725931A (en) * | 2013-12-27 | 2014-04-16 | 安徽欣意电缆有限公司 | Aluminum-Ferrum-Vanadium aluminum alloy and preparation method thereof and aluminum alloy cable |
-
2016
- 2016-11-18 CN CN201611027925.0A patent/CN106636768A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004002983A (en) * | 2002-03-27 | 2004-01-08 | Kobe Steel Ltd | Bat made of aluminium alloy |
| CN103667817A (en) * | 2013-12-27 | 2014-03-26 | 安徽欣意电缆有限公司 | Al-Mg aluminum alloy, preparation method thereof and aluminum alloy cable |
| CN103725931A (en) * | 2013-12-27 | 2014-04-16 | 安徽欣意电缆有限公司 | Aluminum-Ferrum-Vanadium aluminum alloy and preparation method thereof and aluminum alloy cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103667825B (en) | A kind of ultra-high-strength/tenacity anticorodal and manufacture method thereof | |
| CN102808105B (en) | Method for preparing shape memory copper alloy | |
| CN110846599B (en) | Heat treatment method for improving corrosion performance of 800 MPa-grade aluminum alloy | |
| CN101463441A (en) | Rare earth-containing high strength heat resisting magnesium alloy and preparation thereof | |
| CN111500917A (en) | High-strength and high-toughness medium-entropy high-temperature alloy and preparation method thereof | |
| CN101463442A (en) | Casting magnesium alloy containing Ag and heavy rare earth and preparation thereof | |
| CN102242298A (en) | Al and Zn strengthened Mg-Sn-RE-based high-toughness heat-resistant magnesium alloy | |
| CN104032196B (en) | high-strength magnesium alloy material and preparation method thereof | |
| CN102978498A (en) | Rare-earth magnesium alloy and preparation method thereof | |
| CN104313484A (en) | Steel for high-strength anti-shaking anti-corrosion reinforcing steel bar and thermal treatment process of steel | |
| CN102181763B (en) | Rare earth magnesium alloy with stable high-temperature strength | |
| CN104789826A (en) | Automobile air conditioner compressor planetary plate and production method thereof | |
| CN103131925B (en) | High-strength heat-resisting composite rare earth magnesium alloy | |
| CN102560187B (en) | Method for preparing copper alloy for electrified railway contact network | |
| CN110229984A (en) | A kind of high intensity Mg-Gd-Er-Y magnesium alloy and preparation method thereof | |
| CN105316550A (en) | High-damping magnesium alloy containing long-periodic structural phase and preparation method for high-damping magnesium alloy | |
| CN105369077A (en) | Aluminum alloy conductor material and preparation method thereof | |
| CN103131924A (en) | Sm-containing Mg-Al-Zn heat-resisting deformed magnesium alloy | |
| CN103146972B (en) | A kind of Multielement rare-earth magnesium alloy and preparation method thereof | |
| CN104789832A (en) | Special high-strength aluminum-magnesium alloy for storage racks and manufacturing method of special high-strength aluminum-magnesium alloy | |
| CN110468317A (en) | Magnesium alloy and preparation method thereof with excellent temperature-room type plasticity | |
| CN104946949A (en) | Novel yttrium samarium magnesium alloy and preparation method thereof | |
| CN104561693B (en) | A kind of high-strength aluminum alloy material for door and window and Technology for Heating Processing thereof | |
| CN103074531A (en) | Heat resistant alloy of rare earth and magnesium and preparation method thereof | |
| CN109943760A (en) | High-strength high-plastic magnesium-rare earth of one kind and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
|
| RJ01 | Rejection of invention patent application after publication |