CN104313404A - Alloy material for fixed blade of axial flow compressor and preparation method of alloy material - Google Patents
Alloy material for fixed blade of axial flow compressor and preparation method of alloy material Download PDFInfo
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- CN104313404A CN104313404A CN201410516424.3A CN201410516424A CN104313404A CN 104313404 A CN104313404 A CN 104313404A CN 201410516424 A CN201410516424 A CN 201410516424A CN 104313404 A CN104313404 A CN 104313404A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- 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
Abstract
The invention belongs to the technical field of alloy materials and discloses an alloy material for a fixed blade of an axial flow compressor and a preparation method of the alloy material. The alloy material comprises the following components in percentage by weight: 5-7% of Si, 1-3% of Cu, 0.8-1.5% of Mn, 0.5-1.3% of Ni, less than 0.3% of Zr, less than 0.9% of Fe, less than 0.2% of Zn and the balance of Al and impurity elements. The alloy material for the fixed blade which is in line with the requirements is obtained by smelting, moulding, heat treatment and other steps; and by adding an appropriate quantity of Mn and Ni elements, the strength and corrosion resistance of the aluminum alloy fixed blade are improved.
Description
Technical field
The invention belongs to technical field of alloy material, be specifically related to a kind of axial compressor fixed blade alloy material and preparation method thereof.
Background technology
Fixed blade is the high-speed rotary turntable of axial compressor, design requirements its test at 270 meter per second linear velocity overspeed operations, any distortion must not be had.Fixed blade material generally adopts alloy steel forging milling welding or riveting molding, also aluminum alloy forge piece milling welding fabrication can be adopted, the shortcoming of upper two kinds of modes is: cost is high, complete processing is complicated, fabrication cycle is long, and be unfavorable for batch production, particularly steel alloy proportion is larger, affect rotor assembly rotational inertia, long-term operation poor stability.
Under this background, need to develop a kind of novel casting aluminum alloy, require: 1. less room temperature and Hot Deformation Performance, 2. higher intensity and toughness, 3. good manufacturability (good fluidity, anti-impurity ability are strong), 4. wider temperature interval, 5. anti-freonll-11 corrosion (R134a), 6. by 280 meter per second linear velocity overspeed operation tests.Through repetition test, prove that ZL9-1.5 alloy material meets above requirement completely.It is the more satisfactory a kind of material of axial compressor fixed blade.
Summary of the invention
The object of this invention is to provide a kind of novel casting aluminum alloy replaces steel alloy or aluminum alloy forge piece to manufacture axial compressor fixed blade material and preparation method thereof.
Technical scheme of the present invention: a kind of axial compressor fixed blade alloy material, described alloy material comprises the composition of following weight per-cent: the Al of Si 5 ~ 7%, Cu 1 ~ 3%, Mn 0.8 ~ 1.5%, Ni 0.5 ~ 1.3%, Zr < 0.3%, Fe < 0.9%, Zn < 0.2%, surplus and impurity element.
As preferably, described alloy material comprises the composition of following weight per-cent: the Al of Si 5.2%, Cu 1.5%, Mn 0.7%, Ni 0.8%, Zr < 0.3%, Fe < 0.9%, Zn < 0.2%, surplus and impurity element.
Further, described impurity element < 0.5%.
Further, the preparation method of described axial compressor fixed blade alloy material, comprises the following steps:
A, alloy melting:
Evenly talcum powder and water glass is applied in crucible;
Add the aluminium ingot, the Al-Cu master alloy of cupric 50% and the Al-Si master alloy of siliceous 25% that are preheated to 200 ~ 300 DEG C after intensification, account for 60 ~ 70% of gross weight, be warming up to after it dissolves and add residue aluminium ingot;
When furnace temperature rises to 700 ~ 720 DEG C, will Mn and the Ni press-in of 200 ~ 600 DEG C be preheated to, melt complete; Furnace temperature is risen to 730 ~ 750 DEG C, will be preheated to the refining agent press-in aluminium liquid of 200 ~ 300 DEG C, slow uniform stirring, after refining effect to be degassed, scratches clean slag;
When furnace temperature reaches 740 ~ 760 DEG C, the alterant being preheated to 200 ~ 300 DEG C is evenly sprinkling upon on metal bath surface, leaves standstill after 8 ~ 10 minutes, in the middle part of press-in crucible, slowly stir 8 ~ 12 minutes up and down, obtained alloy melt;
Alloy melt is poured in mould, obtained alloy-steel casting;
B, alloy thermal treatment: foundry goods is put into heat treatment furnace and carries out solid solution, temperature controls in (520 ~ 540) ± 5 DEG C, soaking time 6 ~ 8 hours, shrend, artificial aging, obtained alloy material.
As preferably, refining agent described in step a selects hexachloroethane refining agent, and main component is C
2cl
6, prepare by 0.5% of charging weight.
As preferably, described in described a, ternary alterant selected by alterant, and main component is NaF, NaCl and K
2zrF
6, prepare by 1% of charging weight.
Further, in described step a, pouring temperature controls at 720 ~ 740 DEG C.
Further, described step b medium casting enters heat treatment furnace at 200 DEG C, heat-up rate≤150 DEG C/h.
Further, in described step b, water quenching technology is: the foundry goods after thermal treatment is quenched in the water of 50 ~ 80 DEG C, and foundry goods is come out of the stove to entering water time controling in 15 seconds.
Further, in described step b, artificial aging technique is: temperature 165 ± 5 DEG C, is incubated 3.5 ~ 4.5 hours, air cooling.
Beneficial effect of the present invention:
Material performance index of the present invention is as follows:
1, alloy separately cast test bar (metal mold) mechanical property
By the above Mechanical Property Analysis of upper 100 stove, statistics: Rm: 320 ~ 380MPa, Rel: 235 ~ 280MPa, A%): 3 ~ 8, HB:90 ~ 110.
2, alloy physics performance
(1) anti-corrosion: by technological test and the running of long-term unit, to prove this alloy freon resistant.
(2) macrostructure: outward appearance is well shaping, without visual defects.Finished surface pinhole rate reaches JB/T7946.3-1995 standard more than 2 grades.
(3) internal soundness: through X radiographic inspection X without visual defects.Pinhole rate reaches GB/T11346-1989 and HB657-1992 standard more than 2 grades.
1, the present invention improves the intensity of aluminium alloy fixed blade by adding appropriate Mn.
2, material over-all properties of the present invention is better than existing domestic cast aluminium alloy material, except aluminium, silicon, copper, manganese, other constituent content controls be less than 1.5%, domestic other constituent content of Cast aluminium alloy lsp request controls within 1% (GB/T1173-1995), melting is simple, easy to operate, does not need high-purity furnace charge, after general thermal treatment, just can obtain good comprehensive mechanical performance index.
3, material crystalline temperature interval of the present invention is wide, thermal crack resistant tendency is strong, is suitable for the intricate casting of became uneven, if with low-pressure casting, then can prevent dispersed shrinkage defect.
4, the anti-freonll-11 of material of the present invention and sea-water corrosion ability strong.
5, present invention process is simple, and cost is low, only reflectal 1/4, be suitable for batch production.
Embodiment
For making those skilled in the art understand production technique of the present invention and technique effect in detail, introduce application of the present invention and technique effect further with concrete production instance below.
Embodiment 1
A kind of axial compressor fixed blade alloy material, described alloy material comprises the composition of following weight per-cent:
The Al of Si5%, Cu2%, Mn1%, Ni 0.7%, Zr0.3%, Fe0.9%, Zn0.2%, surplus and impurity element.
The preparation method of described axial compressor fixed blade alloy material, comprises the following steps:
A, alloy melting:
Evenly talcum powder and water glass is applied in crucible;
Add the aluminium ingot, the Al-Cu master alloy of cupric 50% and the Al-Si master alloy of siliceous 25% that are preheated to 200 DEG C after intensification, account for 60% of gross weight, be warming up to after it dissolves and add residue aluminium ingot;
When furnace temperature rises to 700 DEG C, will Mn and the Ni press-in of 200 DEG C be preheated to, melt complete; Furnace temperature is risen to 730 DEG C, will be preheated to refining agent (SRWJ1 type hexachloroethane refining agent prepares by 0.5% of charging weight) the press-in aluminium liquid of 200 DEG C, slow uniform stirring, after refining effect to be degassed, scratches clean slag;
When furnace temperature reaches 740 DEG C, by the alterant that is preheated to 200 DEG C, (SRNB3 type ternary alterant, main component is NaF, NaCl and K
2zrF
6, prepare by 1% of charging weight) be evenly sprinkling upon on metal bath surface, leave standstill after 8 minutes, in the middle part of press-in crucible, slowly stir 8 minutes up and down, obtained alloy melt;
Be poured into by alloy melt in mould, temperature controls at 720 DEG C, obtained alloy-steel casting;
B, alloy thermal treatment: foundry goods is put into heat treatment furnace at 200 DEG C and carries out solid solution, heat-up rate 110 DEG C/h; Temperature controls at 515 DEG C, soaking time 6 hours; Foundry goods after thermal treatment is quenched in the water of 50 DEG C, and foundry goods is come out of the stove to entering water time controling in 15 seconds; Artificial aging: temperature 160 DEG C, is incubated 3.5 hours, air cooling, obtained alloy material.
Embodiment 2
A kind of axial compressor fixed blade alloy material, described alloy material comprises the composition of following weight per-cent:
The Al of Si7%, Cu3%, Mn1.5%, Ni1.3%, Zr0.3%, Fe0.9%, Zn0.2%, surplus and impurity element.
The preparation method of described axial compressor fixed blade alloy material, comprises the following steps:
A, alloy melting:
Evenly talcum powder and water glass is applied in crucible;
Add the aluminium ingot, the Al-Cu master alloy of cupric 50% and the Al-Si master alloy of siliceous 25% that are preheated to 300 DEG C after intensification, account for 70% of gross weight, be warming up to after it dissolves and add residue aluminium ingot;
When furnace temperature rises to 720 DEG C, will Mn and the Ni press-in of 600 DEG C be preheated to, melt complete; Furnace temperature is risen to 750 DEG C, will be preheated to refining agent (SRWJ1 type hexachloroethane refining agent prepares by 0.5% of charging weight) the press-in aluminium liquid of 300 DEG C, slow uniform stirring, after refining effect to be degassed, scratches clean slag;
When furnace temperature reaches 760 DEG C, by the alterant that is preheated to 300 DEG C, (SRNB3 type ternary alterant, main component is NaF, NaCl and K
2zrF
6, prepare by 1% of charging weight) be evenly sprinkling upon on metal bath surface, leave standstill after 10 minutes, in the middle part of press-in crucible, slowly stir 12 minutes up and down, obtained alloy melt;
Be poured into by alloy melt in mould, temperature controls at 740 DEG C, obtained alloy-steel casting;
B, alloy thermal treatment: foundry goods is put into heat treatment furnace at 200 DEG C and carries out solid solution, heat-up rate 150 DEG C/h; Temperature controls at 545 DEG C, soaking time 8 hours; Foundry goods after thermal treatment is quenched in the water of 8 DEG C, and foundry goods is come out of the stove to entering water time controling in 15 seconds; Artificial aging: temperature 170 DEG C, is incubated 4.5 hours, air cooling, obtained alloy material.
Embodiment 3
A kind of axial compressor fixed blade alloy material, described alloy material comprises the composition of following weight per-cent:
The Al of Si5.5%, Cu2%, Mn0.9%, Ni0.9%, Zr0.3%, Fe0.9%, Zn0.2%, surplus and impurity element.
The preparation method of described axial compressor fixed blade alloy material, comprises the following steps:
A, alloy melting:
Evenly talcum powder and water glass is applied in crucible;
Add the aluminium ingot, the Al-Cu master alloy of cupric 50% and the Al-Si master alloy of siliceous 25% that are preheated to 250 DEG C after intensification, account for 65% of gross weight, be warming up to after it dissolves and add residue aluminium ingot;
When furnace temperature rises to 710 DEG C, will Mn and the Ni press-in of 350 DEG C be preheated to, melt complete; Furnace temperature is risen to 740 DEG C, will be preheated to refining agent (SRWJ1 type hexachloroethane refining agent prepares by 0.5% of charging weight) the press-in aluminium liquid of 250 DEG C, slow uniform stirring, after refining effect to be degassed, scratches clean slag;
When furnace temperature reaches 750 DEG C, by the alterant that is preheated to 250 DEG C, (SRNB3 type ternary alterant, main component is NaF, NaCl and K
2zrF
6, prepare by 1% of charging weight) be evenly sprinkling upon on metal bath surface, leave standstill after 9 minutes, in the middle part of press-in crucible, slowly stir 10 minutes up and down, obtained alloy melt;
Be poured into by alloy melt in mould, temperature controls at 730 DEG C, obtained alloy-steel casting;
B, alloy thermal treatment: foundry goods is put into heat treatment furnace at 200 DEG C and carries out solid solution, heat-up rate 130 DEG C/h; Temperature controls at 530 DEG C, soaking time 7 hours; Foundry goods after thermal treatment is quenched in the water of 60 DEG C, and foundry goods is come out of the stove to entering water time controling in 15 seconds; Artificial aging: temperature 165 DEG C, is incubated 4 hours, air cooling, obtained alloy material.
Embodiment 4
A kind of axial compressor fixed blade alloy material, described alloy material comprises the composition of following weight per-cent: the Al of Si6%, Cu2.5%, Mn1%, Ni1.3%, Zr0.3%, Fe0.9%, Zn0.2%, surplus and impurity element.
The preparation method of described axial compressor fixed blade alloy material, comprises the following steps:
A, alloy melting:
Evenly talcum powder and water glass is applied in crucible;
Add the aluminium ingot, the Al-Cu master alloy of cupric 50% and the Al-Si master alloy of siliceous 25% that are preheated to 280 DEG C after intensification, account for 60% of gross weight, be warming up to after it dissolves and add residue aluminium ingot;
When furnace temperature rises to 715 DEG C, will Mn and the Ni press-in of 500 DEG C be preheated to, melt complete; Furnace temperature is risen to 745 DEG C, will be preheated to refining agent (SRWJ1 type hexachloroethane refining agent prepares by 0.5% of charging weight) the press-in aluminium liquid of 280 DEG C, slow uniform stirring, after refining effect to be degassed, scratches clean slag;
When furnace temperature reaches 755 DEG C, by the alterant that is preheated to 280 DEG C, (SRNB3 type ternary alterant, main component is NaF, NaCl and K
2zrF
6, prepare by 1% of charging weight) be evenly sprinkling upon on metal bath surface, leave standstill after 10 minutes, in the middle part of press-in crucible, slowly stir 11 minutes up and down, obtained alloy melt;
Be poured into by alloy melt in mould, temperature controls at 735 DEG C, obtained alloy-steel casting;
B, alloy thermal treatment: foundry goods is put into heat treatment furnace at 200 DEG C and carries out solid solution, heat-up rate 140 DEG C/h; Temperature controls at 540 DEG C, soaking time 7 hours; Foundry goods after thermal treatment is quenched in the water of 70 DEG C, and foundry goods is come out of the stove to entering water time controling in 15 seconds; Artificial aging: temperature 168 DEG C, is incubated 4.2 hours, air cooling, obtained alloy material.
Embodiment 5
A kind of axial compressor fixed blade alloy material, described alloy material comprises the composition of following weight per-cent: the Al of Si5.2%, Cu1.5%, Mn0.7%, Ni0.8%, Zr0.3%, Fe0.9%, Zn0.2%, surplus and impurity element.
The preparation method of described axial compressor fixed blade alloy material, comprises the following steps:
A, alloy melting:
Evenly talcum powder and water glass is applied in crucible;
Add the aluminium ingot, the Al-Cu master alloy of cupric 50% and the Al-Si master alloy of siliceous 25% that are preheated to 230 DEG C after intensification, account for 60% of gross weight, be warming up to after it dissolves and add residue aluminium ingot;
When furnace temperature rises to 705 DEG C, will Mn and the Ni press-in of 230 DEG C be preheated to, melt complete; Furnace temperature is risen to 735 DEG C, will be preheated to refining agent (SRWJ1 type hexachloroethane refining agent prepares by 0.5% of charging weight) the press-in aluminium liquid of 230 DEG C, slow uniform stirring, after refining effect to be degassed, scratches clean slag;
When furnace temperature reaches 745 DEG C, by the alterant that is preheated to 230 DEG C, (SRNB3 type ternary alterant, main component is NaF, NaCl and K
2zrF
6, prepare by 1% of charging weight) be evenly sprinkling upon on metal bath surface, leave standstill after 8 minutes, in the middle part of press-in crucible, slowly stir 9 minutes up and down, obtained alloy melt;
Be poured into by alloy melt in mould, temperature controls at 725 DEG C, obtained alloy-steel casting;
B, alloy thermal treatment: foundry goods is put into heat treatment furnace at 200 DEG C and carries out solid solution, heat-up rate 120 DEG C/h; Temperature controls at 525 DEG C, soaking time 6 hours; Foundry goods after thermal treatment is quenched in the water of 60 DEG C, and foundry goods is come out of the stove to entering water time controling in 15 seconds; Artificial aging: temperature 162 DEG C, is incubated 3.7 hours, air cooling, obtained alloy material.
Above the technical scheme that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth the principle of the embodiment of the present invention and embodiment, the explanation of above embodiment is only applicable to the principle helping to understand the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, embodiment and range of application all will change, and in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. an axial compressor fixed blade alloy material, it is characterized in that, described alloy material comprises the composition of following weight per-cent: the Al of Si 5 ~ 7%, Cu 1 ~ 3%, Mn 0.8 ~ 1.5%, Ni 0.5 ~ 1.3%, Zr < 0.3%, Fe < 0.9%, Zn < 0.2%, surplus and impurity element.
2., according to a kind of axial compressor fixed blade alloy material described in claim 1, it is characterized in that: described alloy material comprises the composition of following weight per-cent: the Al of Si 5.2%, Cu 1.5%, Mn 0.7%, Ni 0.8%, Zr < 0.3%, Fe < 0.9%, Zn < 0.2%, surplus and impurity element.
3. a kind of axial compressor fixed blade alloy material according to claim 1 or 2, is characterized in that: described impurity element < 0.5%.
4. the preparation method of a kind of axial compressor fixed blade alloy material as described in any one of claims 1 to 3, is characterized in that comprising the following steps:
A, alloy melting:
Evenly talcum powder and water glass is applied in crucible;
Add the aluminium ingot, the Al-Cu master alloy of cupric 50% and the Al-Si master alloy of siliceous 25% that are preheated to 200 ~ 300 DEG C after intensification, account for 60 ~ 70% of gross weight, be warming up to after it dissolves and add residue aluminium ingot;
When furnace temperature rises to 700 ~ 720 DEG C, will Mn and the Ni press-in of 200 ~ 500 DEG C be preheated to, melt complete; Furnace temperature is risen to 730 ~ 750 DEG C, will be preheated to the refining agent press-in aluminium liquid of 200 ~ 300 DEG C, slow uniform stirring, after refining effect to be degassed, scratches clean slag;
When furnace temperature reaches 740 ~ 760 DEG C, the alterant being preheated to 200 ~ 300 DEG C is evenly sprinkling upon on metal bath surface, leaves standstill after 8 ~ 10 minutes, in the middle part of press-in crucible, slowly stir 8 ~ 12 minutes up and down, obtained alloy melt;
Alloy melt is poured in mould, obtained alloy-steel casting;
B, alloy thermal treatment: foundry goods is put into heat treatment furnace and carries out solid solution, temperature controls in (520 ~ 540) ± 5 DEG C, soaking time 6 ~ 8 hours, shrend, artificial aging, obtained alloy material.
5., according to the preparation method of a kind of axial compressor fixed blade alloy material described in claim 4, it is characterized in that: refining agent described in step a is hexachloroethane refining agent, main component is C
2cl
6, prepare by 0.5% of charging weight.
6., according to the preparation method of a kind of axial compressor fixed blade alloy material described in claim 4, it is characterized in that: alterant described in described a is ternary alterant, main component is NaF, NaCl and K
2zrF
6, prepare by 1% of charging weight.
7., according to the preparation method of a kind of axial compressor fixed blade alloy material described in claim 4, it is characterized in that: in described step a, pouring temperature controls at 720 ~ 740 DEG C.
8., according to the preparation method of a kind of axial compressor fixed blade alloy material described in claim 4, it is characterized in that: described step b medium casting enters heat treatment furnace at 200 DEG C, heat-up rate≤150 DEG C/h.
9. according to the preparation method of a kind of axial compressor fixed blade alloy material described in claim 4, it is characterized in that: in described step b, water quenching technology is: the foundry goods after thermal treatment is quenched in the water of 50 ~ 80 DEG C, foundry goods is come out of the stove to entering water time controling in 15 seconds.
10. according to the preparation method of a kind of axial compressor fixed blade alloy material described in claim 4, it is characterized in that: in described step b, artificial aging technique is: temperature 165 ± 5 DEG C, be incubated 3.5 ~ 4.5 hours, air cooling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410516424.3A CN104313404A (en) | 2014-09-30 | 2014-09-30 | Alloy material for fixed blade of axial flow compressor and preparation method of alloy material |
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| CN201410516424.3A CN104313404A (en) | 2014-09-30 | 2014-09-30 | Alloy material for fixed blade of axial flow compressor and preparation method of alloy material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850244A (en) * | 2020-07-31 | 2020-10-30 | 滁州市汊河之星高新技术研发有限公司 | Preparation method of heat pump electric automobile air conditioner compressor blade |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03100136A (en) * | 1989-09-13 | 1991-04-25 | Sumitomo Light Metal Ind Ltd | Aluminum alloy material for die |
| CN1810999A (en) * | 2005-01-25 | 2006-08-02 | 不伦瑞克公司 | Aluminum-silicon alloy with reduced soldering to die-casting die |
| CN1936052A (en) * | 2006-10-18 | 2007-03-28 | 东华大学 | Aluminium-silicon alloy casting and its preparing method |
| CN101087898A (en) * | 2004-12-23 | 2007-12-12 | 联邦科学和工业研究组织 | Heat treatment of aluminium alloy high pressure die castings |
| CN103930577A (en) * | 2011-12-02 | 2014-07-16 | 株式会社Uacj | Aluminum alloy material and aluminum alloy structure and production process therefor |
-
2014
- 2014-09-30 CN CN201410516424.3A patent/CN104313404A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03100136A (en) * | 1989-09-13 | 1991-04-25 | Sumitomo Light Metal Ind Ltd | Aluminum alloy material for die |
| CN101087898A (en) * | 2004-12-23 | 2007-12-12 | 联邦科学和工业研究组织 | Heat treatment of aluminium alloy high pressure die castings |
| CN1810999A (en) * | 2005-01-25 | 2006-08-02 | 不伦瑞克公司 | Aluminum-silicon alloy with reduced soldering to die-casting die |
| CN1936052A (en) * | 2006-10-18 | 2007-03-28 | 东华大学 | Aluminium-silicon alloy casting and its preparing method |
| CN103930577A (en) * | 2011-12-02 | 2014-07-16 | 株式会社Uacj | Aluminum alloy material and aluminum alloy structure and production process therefor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850244A (en) * | 2020-07-31 | 2020-10-30 | 滁州市汊河之星高新技术研发有限公司 | Preparation method of heat pump electric automobile air conditioner compressor blade |
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Application publication date: 20150128 |