CN107988535A - A kind of high strength heat resistant cast aluminium alloy gold and method of smelting - Google Patents
A kind of high strength heat resistant cast aluminium alloy gold and method of smelting Download PDFInfo
- Publication number
- CN107988535A CN107988535A CN201711111308.3A CN201711111308A CN107988535A CN 107988535 A CN107988535 A CN 107988535A CN 201711111308 A CN201711111308 A CN 201711111308A CN 107988535 A CN107988535 A CN 107988535A
- Authority
- CN
- China
- Prior art keywords
- aluminium alloy
- alloy
- cast aluminium
- high strength
- heat resistant
- 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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/006—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with use of an inert protective material including the use of an inert gas
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
Abstract
The invention belongs to technical field of aluminium alloy preparation, is related to a kind of high strength heat resistant cast aluminium alloy gold and method of smelting.The percentage by weight of each component content of cast aluminium alloy gold of the present invention is：Cu：4.0~6.0；Mn：0.3~0.8；Mg：0.1~0.7；Ni：0~0.5；Zr：0.08~0.45；V：0.08~0.45；B：0.005~0.06；Fe≤0.3；Si≤0.2；Surplus is Al.The step of melting of the present invention, is as follows：Alloy preparation；Alloy melting；Alloy is poured into a mould.The present invention proposes a kind of high strength heat resistant cast aluminium alloy gold and method of smelting, substantially increases heat resistance；Reduce the melting difficulty of alloy；Improve the casting character of alloy；Avoid and use noble metal, reduce the production cost of alloy.
Description
Technical field
The invention belongs to technical field of aluminium alloy preparation, is related to a kind of high strength heat resistant cast aluminium alloy gold and method of smelting.
Background technology
With the rapid development of Aeronautics and Astronautics, the temperature in use of aero-engine cast aluminium alloy gold component constantly raises, because
And require the heat resistance of component to improve therewith, for adapt to the requirement of aero-engine improve the heat resistance of cast aluminium alloy gold into
Needed for urgent.Chinese patent 201410625866.1 discloses " a kind of high performance heat resistant aluminum alloy materials ", it uses industry
Matrix of the fine aluminium as aluminium alloy, alloy can shield the harmfulness of iron and silicon, the component (Wt.%) of alloy in fusion-casting process
For：Cu:7.6~7.9, Mn:0.8~1.4, Cd:0.41~0.49, Zr:0.75~0.99, Ni:0.71~0.95, Co:0.95
~0.99, Ti:0.35~0.39, B:0.18~0.3, rare earth elements RE：4.8~5.8, surplus Al.220 DEG C of the invention alloy
Tensile strength have and significantly strengthen, reach more than 500MPa.The invention alloying component is mostly easy segregation element, and alloy
Component content accounting is higher, therefore alloy melting difficulty is larger, is unfavorable for cast form.In addition, the alloy property is confined to 220
DEG C, it is impossible to reach 250~350 DEG C heat-resisting to high-strength temperature-resistant cast aluminium alloy gold of requirement.Chinese patent 200310109852.6 is public
" the Al-Cu-Mg-Ag high-strength casting heat-resisting aluminium alloy containing cerium " is opened, by adding rare earth element ce and precious metal element
Ag realizes high-strength aluminum alloy and preparation method thereof, and the component (Wt.%) of alloy is：Cu:4~8, Mg:0.4~1.0, Ag:0.3
~1.0, Mn:0.3~0.6, Zr:0.05~0.30, Ce:0.05~0.50, surplus Al.The invention is by adding rare earth element
Ce, using Ce refining alloy as-cast structures, by further fixation rates, obtains preferable tissue, improves casting and close
Golden bulk strength and high-temperature heat-resistance performance.Firstly for room temperature strength, which has higher intensity, reach 350~
450Mpa, but 300 DEG C of tensile strength only has 170~220MPa, and its performance declines comparatively fast with temperature rise, heat resistance is bright
It is inadequate.Moreover, the alloy has used precious metals ag to sharply increase alloy material cost as alloying element.
The content of the invention
The purpose of the present invention is：A kind of high strength heat resistant cast aluminium alloy gold and method of smelting are proposed, to improve heat resistance
Energy；Low-alloyed melting difficulty drops；Improve the casting character of alloy；Avoid using noble metal, drop low-alloyed production cost.
The technical scheme is that：A kind of high strength heat resistant cast aluminium alloy gold, it is characterised in that：Cast aluminium alloy gold is each
The percentage by weight of component content is：Cu：4.0~6.0；Mn：0.3~0.8；Mg：0.1~0.7；Ni：0~0.5；Zr：0.08
~0.45；V：0.08~0.45；B：0.005~0.06；Fe≤0.3；Si≤0.2；Surplus is Al.
A kind of method of smelting of high strength heat resistant cast aluminium alloy gold, prepares high strength heat resistant Cast aluminium alloy as described above
Gold, it is characterised in that the step of melting is as follows：
1st, alloy preparation：By purity not less than commercially pure Al ingots, Mg ingots and intermediate alloy Al-Cu, Al-Mn, Al-Ni,
The weighing and burdens such as Al-Ti, Al-Ti-B, Al-Zr, Al-V, make dispensing meet alloying component requirement；
2nd, alloy melting:The alloying ingredient completed will be prepared and be put into crucible, be heated to 680 DEG C~760 DEG C, insulation 2h~
4h, then stirs 10min~20min, obtains the aluminium alloy of high strength heat resistant cast aluminium alloy gold；
3rd, alloy is poured into a mould:Ingot casting is poured into a mould at 690 DEG C~750 DEG C, pouring procedure is using manual gravity-assist pouring or use
Casting machine anti-gravity pouring.
It is an advantage of the invention that：A kind of high strength heat resistant cast aluminium alloy gold and method of smelting are proposed, is substantially increased resistance to
Hot property；Reduce the melting difficulty of alloy；Improve the casting character of alloy；Avoid and use noble metal, reduce alloy
Production cost.
Embodiment
The present invention is described in further details below.A kind of high strength heat resistant cast aluminium alloy gold, it is characterised in that：Casting
The percentage by weight of each component content of aluminium alloy is：Cu：4.0~6.0；Mn：0.3~0.8；Mg：0.1~0.7；Ni：0~
0.5；Zr：0.08~0.45；V：0.08~0.45；B：0.005~0.06；Fe≤0.3；Si≤0.2；Surplus is Al.
A kind of method of smelting of high strength heat resistant cast aluminium alloy gold, prepares high strength heat resistant Cast aluminium alloy as described above
Gold, it is characterised in that the step of melting is as follows：
1st, alloy preparation：By purity not less than commercially pure Al ingots, Mg ingots and intermediate alloy Al-Cu, Al-Mn, Al-Ni,
The weighing and burdens such as Al-Ti, Al-Ti-B, Al-Zr, Al-V, make dispensing meet alloying component requirement；
2nd, alloy melting:The alloying ingredient completed will be prepared and be put into crucible, be heated to 680 DEG C~760 DEG C, insulation 2h~
4h, then stirs 10min~20min, obtains the aluminium alloy of high strength heat resistant cast aluminium alloy gold；
3rd, alloy is poured into a mould:Ingot casting is poured into a mould at 690 DEG C~750 DEG C, pouring procedure is using manual gravity-assist pouring or use
Casting machine anti-gravity pouring.
The composition of cast aluminium alloy gold also includes Ti, and the percentage by weight of Ti contents is：0.08~0.3.By the addition of Ti,
One side refining alloy tissue, improves Alloy At Room Temperature performance and Production Practice of Casting Technologies；On the other hand, Ti and Al is formed heat safe
Al3Ti, strengthened dispersion alloy, improves alloy high-temp performance.
The composition of cast aluminium alloy gold also includes Ni, and the percentage by weight of Ni contents is：0~0.5.By the addition of Ni, with
Al generates the heat-resisting phase of bone shape, further improves the elevated temperature strength of alloy.
Alloy refining is carried out after alloy melting, method of refining is：By aluminium alloy temperature stabilization at 700 DEG C~730 DEG C, adopt
Use C2Cl610min~20min is refined by hand or using conche injection Ar or N2Gas 20min~30min, stands after refining
10min~30min.Alloy refining process passes through C2Cl6Effect or Ar or N with aluminium alloy2The suction-operated of gas, makes conjunction
Golden liquid pernicious gas and being mingled with is reduced, and the mechanical property of alloy is improved.
The present invention operation principle be：Precipitation phase is generated in Al by Cu, Mg, improves the room temperature properties of alloy
Can, while Cu and precipitation phase CuAl formed by Al elements2Also make alloy that there is good heat resistance；In addition, addition
The elements such as Mn, Zr, V, B and Al generate heat-resisting hardening constituent, are improved the heat resistance of alloy.
Embodiment 1
First, alloying component is chosen：
Choose each component content of cast aluminium alloy gold percentage by weight be：Cu：5；Mn：0.4；Mg：0.4；Ni：0.2；
Ti：0.25；Zr：0.25；V：0.25；B：0.04；Surplus is Al.
2nd, material is prepared：
1st, alloy preparation：By purity not less than commercially pure Al ingots, Mg ingots and intermediate alloy Al-Cu, Al-Mn, Al-Ni,
The weighing and burdens such as Al-Ti, Al-Ti-B, Al-Zr, Al-V, make dispensing meet alloying component requirement；
2nd, alloy melting:The alloying ingredient for preparing completion is put into crucible, is heated to 730 DEG C, 3h is kept the temperature, then stirs
15min, obtains the aluminium alloy of high strength heat resistant cast aluminium alloy gold；
3rd, alloy is poured into a mould:Ingot casting is poured into a mould at 720 DEG C, pouring procedure is anti-using manual gravity-assist pouring or using casting machine
Gravity-assist pouring.
3rd, the performance test results：
Mechanics Performance Testing is carried out to the alloy mechanical property coupon of acquisition.As a result：
| Mechanical property | Room temperature | 250℃ | 300℃ | 350℃ |
| Tensile strength sigmab/MPa | 410 | 330 | 270 | 205 |
| Elongation percentage δ/% | 6.0 | 7.0 | 9.0 | 10.0 |
Embodiment 2
First, alloy component is chosen：
Choose each component content of cast aluminium alloy gold percentage by weight be：Cu：6；Mn：0.8；Mg：0.5；Ni：0.5；
Ti：0.3；Zr：0.35；V：0.35；B：0.05；Surplus is Al.
2nd, material is prepared：
1st, alloy preparation：By purity not less than commercially pure Al ingots, Mg ingots and intermediate alloy Al-Cu, Al-Mn, Al-Ni,
The weighing and burdens such as Al-Ti, Al-Ti-B, Al-Zr, Al-V, make dispensing meet alloying component requirement；
2nd, alloy melting:The alloying ingredient for preparing completion is put into crucible, is heated to 680 DEG C, 4h is kept the temperature, then stirs
20min, obtains the aluminium alloy of high strength heat resistant cast aluminium alloy gold；
3rd, alloy is poured into a mould:Ingot casting is poured into a mould at 750 DEG C, pouring procedure is anti-using manual gravity-assist pouring or using casting machine
Gravity-assist pouring.
Embodiment 3
First, alloy component is chosen：
Choose each component content of cast aluminium alloy gold percentage by weight be：Cu：4；Mn：0.4；Mg：0.4；Zr：0.25；
V：0.25；B：0.04；Surplus is Al.
2nd, material is prepared：
1st, alloy preparation：By purity not less than commercially pure Al ingots, Mg ingots and intermediate alloy Al-Cu, Al-Mn, Al-Ni,
The weighing and burdens such as Al-Zr, Al-V, make dispensing meet alloying component requirement；
2nd, alloy melting:The alloying ingredient for preparing completion is put into crucible, is heated to 760 DEG C, 2h is kept the temperature, then stirs
10min, obtains the aluminium alloy of high strength heat resistant cast aluminium alloy gold；
3rd, alloy is poured into a mould:Ingot casting is poured into a mould at 690 DEG C, pouring procedure is anti-using manual gravity-assist pouring or using casting machine
Gravity-assist pouring.
Claims (5)
- A kind of 1. high strength heat resistant cast aluminium alloy gold, it is characterised in that：The percentage by weight of each component content of cast aluminium alloy gold For：Cu：4.0~6.0；Mn：0.3~0.8；Mg：0.1~0.7；Ni：0~0.5；Zr：0.08~0.45；V：0.08~0.45； B：0.005~0.06；Fe≤0.3；Si≤0.2；Surplus is Al.
- 2. a kind of method of smelting of high strength heat resistant cast aluminium alloy gold, prepares high strength heat resistant casting as claimed in claim 1 Aluminium alloy, it is characterised in that the step of melting is as follows：2.1st, alloy preparation：By purity not less than commercially pure Al ingots, Mg ingots and intermediate alloy Al-Cu, Al-Mn, Al-Ni, Al- Ti, Al-Ti-B, Al-Zr, Al-V weighing and burden, make dispensing meet alloying component requirement；2.2nd, alloy melting:The alloying ingredient for preparing completion is put into crucible, is heated to 680 DEG C~760 DEG C, keeps the temperature 2h~4h, Then 10min~20min is stirred, obtains the aluminium alloy of high strength heat resistant cast aluminium alloy gold；2.3rd, alloy is poured into a mould:Ingot casting is poured into a mould at 690 DEG C~750 DEG C, pouring procedure is using manual gravity-assist pouring or using casting Make machine anti-gravity pouring.
- 3. high strength heat resistant cast aluminium alloy gold according to claim 1, it is characterised in that：The composition of cast aluminium alloy gold also wraps Containing Ti, the percentage by weight of Ti contents is：0.08~0.3.
- 4. the high strength heat resistant cast aluminium alloy gold according to claim 1 or 3, it is characterised in that：The component of cast aluminium alloy gold Ni is also included, the percentage by weight of Ni contents is：0~0.5.
- 5. the method for smelting of high strength heat resistant cast aluminium alloy gold according to claim 2, it is characterised in that：In alloy melting Alloy refining is carried out afterwards, and method of refining is：By aluminium alloy temperature stabilization at 700 DEG C~730 DEG C, using C2Cl6Refining by hand 10min~20min is blown Ar or N using conche2Gas 20min~30min, stands 10min~30min after refining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711111308.3A CN107988535A (en) | 2017-11-10 | 2017-11-10 | A kind of high strength heat resistant cast aluminium alloy gold and method of smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711111308.3A CN107988535A (en) | 2017-11-10 | 2017-11-10 | A kind of high strength heat resistant cast aluminium alloy gold and method of smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107988535A true CN107988535A (en) | 2018-05-04 |
Family
ID=62030784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711111308.3A Pending CN107988535A (en) | 2017-11-10 | 2017-11-10 | A kind of high strength heat resistant cast aluminium alloy gold and method of smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107988535A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797327A (en) * | 2019-04-10 | 2019-05-24 | 南通市荣力达铝业有限公司 | A kind of car body of aluminum alloy part of high intensity and preparation method thereof |
| CN112281034A (en) * | 2020-10-16 | 2021-01-29 | 中国航发北京航空材料研究院 | Cast aluminum alloy and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB752802A (en) * | 1953-04-22 | 1956-07-18 | Aluminum Co Of America | Improvements in or relating to aluminium base alloys |
| CN104451297A (en) * | 2014-12-30 | 2015-03-25 | 辽宁忠旺集团有限公司 | Casting technology of aluminum bronze series aluminum alloy circular ingots |
-
2017
- 2017-11-10 CN CN201711111308.3A patent/CN107988535A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB752802A (en) * | 1953-04-22 | 1956-07-18 | Aluminum Co Of America | Improvements in or relating to aluminium base alloys |
| CN104451297A (en) * | 2014-12-30 | 2015-03-25 | 辽宁忠旺集团有限公司 | Casting technology of aluminum bronze series aluminum alloy circular ingots |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109797327A (en) * | 2019-04-10 | 2019-05-24 | 南通市荣力达铝业有限公司 | A kind of car body of aluminum alloy part of high intensity and preparation method thereof |
| CN112281034A (en) * | 2020-10-16 | 2021-01-29 | 中国航发北京航空材料研究院 | Cast aluminum alloy and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108467979B (en) | Metal mold gravity casting aluminum alloy material and preparation method thereof | |
| CN108642336B (en) | Extrusion casting aluminum alloy material and preparation method thereof | |
| Han et al. | Effects of Nd on microstructure and mechanical properties of cast Al-Si-Cu-Ni-Mg piston alloys | |
| CN104745903B (en) | A kind of 480MPa grades of aluminium alloy oil pipe aluminium alloy and its tubing manufacture method | |
| Shabestari et al. | Effect of semi-solid forming on the microstructure and mechanical properties of the iron containing Al–Si alloys | |
| CN113373352B (en) | High-pressure cast aluminum alloy and preparation method thereof | |
| CN104532056B (en) | A kind of high-temperature titanium alloy and preparation method thereof | |
| CN108486441B (en) | Sand mold gravity casting aluminum alloy material and preparation method thereof | |
| CN106834846A (en) | A kind of multicomponent heat-resistant corrosion-resistant magnesium alloy and preparation method | |
| Liu et al. | Microstructure evolution during heat treatment and mechanical properties of Mg–2.49 Nd–1.82 Gd–0.19 Zn–0.4 Zr cast alloy | |
| CN105568105A (en) | High-strength high-plasticity Mg-Gd-Y-Ni-Mn alloy and preparing method thereof | |
| CN104498797A (en) | High-strength casting magnesium alloy with low hot cracking tendency and preparation method for high-strength casting magnesium alloy | |
| CN101486135A (en) | GH4169 high-temperature alloy welding wire | |
| CN108251724A (en) | Suitable for the high strength heat resistant alloy and preparation process of big specification Complicated structure casting | |
| Li et al. | Relationship of Mg2Si morphology with Mg2Si content and its effect on properties of in-situ Mg2Si/Al–Cu composites | |
| CN103146973A (en) | High-temperature-resistant rare earth magnesium alloy | |
| CN107988535A (en) | A kind of high strength heat resistant cast aluminium alloy gold and method of smelting | |
| CN106978557A (en) | A kind of magnesium lithium alloy and preparation method thereof | |
| CN105039816B (en) | A kind of high strength and low cost heat resistance magnesium alloy and preparation method thereof | |
| CN104328320A (en) | High-strength and high-plasticity magnesium alloy | |
| CN109182804A (en) | A kind of high intensity aluminum bronze line aluminium alloy preparation method | |
| CN108034874A (en) | A kind of magnesium-rare earth containing molybdenum-rhenium and preparation method thereof | |
| CN104152772B (en) | A kind of argentiferous strontium and rare earth high-strength heat-resistant magnesium alloy and preparation method thereof | |
| CN104561709B (en) | High-creep-performance casting magnesium alloy and preparation method thereof | |
| CN104099507A (en) | High-strength and high-toughness rare earth magnesium alloy |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180504 |