CN105568080B - A kind of aluminum alloy die casting and preparation method thereof - Google Patents
A kind of aluminum alloy die casting and preparation method thereof Download PDFInfo
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- CN105568080B CN105568080B CN201610054598.1A CN201610054598A CN105568080B CN 105568080 B CN105568080 B CN 105568080B CN 201610054598 A CN201610054598 A CN 201610054598A CN 105568080 B CN105568080 B CN 105568080B
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- molten aluminium
- aluminium alloy
- aluminum alloy
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 54
- 238000004512 die casting Methods 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims description 9
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 150000002739 metals Chemical class 0.000 claims abstract description 7
- 238000007670 refining Methods 0.000 claims description 20
- 229910045601 alloy Inorganic materials 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 14
- 238000005266 casting Methods 0.000 claims description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910000632 Alusil Inorganic materials 0.000 claims description 5
- 229910001371 Er alloy Inorganic materials 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 5
- 229910001278 Sr alloy Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- SYJBLFMEUQWNFD-UHFFFAOYSA-N magnesium strontium Chemical compound [Mg].[Sr] SYJBLFMEUQWNFD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 2
- 238000005275 alloying Methods 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- UAMZXLIURMNTHD-UHFFFAOYSA-N dialuminum;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Mg+2].[Al+3].[Al+3] UAMZXLIURMNTHD-UHFFFAOYSA-N 0.000 description 3
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a kind of aluminum alloy die casting, the mass percent of its component and each component is：Si3~6%, Mg2~3%, Mn0.3~1.2%, Fe1.1~1.8%, Sr0.03~0.08%, Er0.04~0.06%, other metals and nonmetallic impurity element total amount are no more than 0.5%, and remaining is Al.The aluminum alloy die casting of the present invention has good processing characteristics, and shaping is easy, and intensity is high, toughness is big, also with good corrosion resistance.
Description
Technical field
The present invention relates to die casting manufacture field, particularly a kind of aluminum alloy die casting and preparation method thereof.
Background technology
As requirement of the people to the light weight of product, low cost is increasingly strong, aluminium alloy has in these two aspects due to it
Significant advantage, more it is taken seriously.And pack alloy can realize the one-shot forming of labyrinth, in the simple of process
Property, there is very big advantage in terms of operability so that the application of aluminum alloy die casting is extremely widespread at present.
But current pack alloy is presence can not get both in terms of die casting and mechanical strength the defects of, serious shadow
Application of the aluminum alloy die casting in terms of the load-bearing accessory such as automobile, air-conditioning is rung.Common pack alloy mainly has aluminium silicon systems
With high purity alumina-magnesia alloy；Aluminium silicon class alloy pressuring casting, it is that burnt hair, nigrescence, mechanical performance are poor once chemically treating surface, and fragility
It is larger；And although other high purity alumina-magnesia alloy surface treatment properties are excellent, die casting performance is bad, has easy sticking to mould, hot tearing, pours
Deficiency, cold shut and it is loose the defects of, mechanical performance and hardness is not also high.Traditional pack alloy anodic oxidation poor-performing,
Intensity is relatively low, corrosion resistance is poor and mobility can not meet the requirement of product material.
The content of the invention
The invention provides a kind of aluminum alloy die casting and preparation method thereof, and enabling aluminum alloy to die casting has excellent machinery
Performance.
To achieve the above object, the technical scheme is that：
The mass percent of a kind of aluminum alloy die casting, its component and each component is：Si3~6%, Mg2~3%, Mn0.3
~1.2%, Fe1.1~1.8%, Sr0.03~0.08%, Er0.04~0.06%, other metals and nonmetallic impurity element
Total amount is no more than 0.5%, and remaining is Al.
Preferably, the component of the aluminum alloy die casting and the mass percent of each component are：Si5%, Mg2.6%,
Mn0.8%, Fe1.6%, Sr0.06%, Er0.05%, other metals and nonmetallic impurity element total amount are no more than 0.5%,
Remaining is Al.
A kind of preparation method of aluminum alloy die casting, comprises the following steps：
(1) melt：First fine aluminium, pure magnesium, alusil alloy are added in smelting furnace, are heated to 730~750 DEG C and stir to make conjunction
Gold is completely melt, is then added ferroaluminium, magnesium strontium alloy, Al-Er alloy and alumal, is continuously heating to 780~800 DEG C,
Molten aluminium alloy is obtained after alloying element all fusing；
(2) refine：The temperature of molten aluminium alloy is adjusted to 750~770 DEG C, refining agent is sprayed into and carries out refining treatment, so
After be warming up to 750-760 DEG C, be passed through argon gas carry out refinery by de-gassing, examine molten aluminium alloy composition it is qualified after complete refining process；
(3) stand：Molten aluminium alloy after refining is stood, treats that molten aluminium alloy temperature is down to 690~710 DEG C；
(4) die casting：The die cavity of mould is preheated to 220~230 DEG C, then by after the molten aluminium alloy after step (3) processing
Injection into the die cavity of mould, wherein fill liquation flow velocity when type starts be 0.26~0.30m/s, casting pressure be 50~
55MPa, after filling type rate more than 60%, flow velocity to 1.7~1.9m/s, the casting pressure for improving liquation is 65~70MPa, until filling
Type die casting terminates；
(5) it is stripped：It is 100~110s that die casting, which terminates the rear dwell time, lays down pressure, cools down to be stripped after 20~25s and produces
Die casting finished product.
The aluminum alloy die casting of the present invention, can be applied to the fields such as air-conditioning, automobile, engine, has advantages below：
(1) there is a good processing characteristics, shaping is easy, the defects of being not in sticking to mould, hot tearing, misrun, cold shut；
(2) compared with current conventional aluminium silicon systems and high purity alumina-magnesia alloy, aluminum alloy die casting of the invention tensile strength,
Yield strength is substantially improved, and intensity is high, toughness is big, also with good corrosion resistance.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described, but protection scope of the present invention and application are not
It is limited to following examples：
Embodiment 1
The mass percent of a kind of aluminum alloy die casting, its component and each component is：Si5%, Mg2.6%, Mn0.8%,
Fe1.6%, Sr0.06%, Er0.05%, other metals and nonmetallic impurity element total amount are no more than 0.5%, and remaining is Al.
The preparation method of above-mentioned aluminum alloy die casting, comprises the following steps：
(1) melt：First fine aluminium, pure magnesium, alusil alloy are added in smelting furnace, are heated to 730~750 DEG C and stir to make conjunction
Gold is completely melt, is then added ferroaluminium, magnesium strontium alloy, Al-Er alloy and alumal, is continuously heating to 780~800 DEG C,
Molten aluminium alloy is obtained after alloying element all fusing；
(2) refine：The temperature of molten aluminium alloy is adjusted to 750~770 DEG C, refining agent is sprayed into and carries out refining treatment, so
After be warming up to 750-760 DEG C, be passed through argon gas carry out refinery by de-gassing, examine molten aluminium alloy composition it is qualified after complete refining process；
(3) stand：Molten aluminium alloy after refining is stood, treats that molten aluminium alloy temperature is down to 690~710 DEG C；
(4) die casting：The die cavity of mould is preheated to 220~230 DEG C, then by after the molten aluminium alloy after step (3) processing
Injection into the die cavity of mould, wherein fill liquation flow velocity when type starts be 0.26~0.30m/s, casting pressure be 50~
55MPa, after filling type rate more than 60%, flow velocity to 1.7~1.9m/s, the casting pressure for improving liquation is 65~70MPa, until filling
Type die casting terminates；
(5) it is stripped：It is 100~110s that die casting, which terminates the rear dwell time, lays down pressure, cools down to be stripped after 20~25s and produces
Die casting finished product.
Using 1cm tensile samples made from the above method, its mechanical performance is tested at room temperature：Tensile strength is
330MPa, yield strength 259MPa, elongation percentage 12.1%.
Embodiment 2
The mass percent of a kind of aluminum alloy die casting, its component and each component is：Si3%, Mg2%, Mn0.3%,
Fe1.1%, Sr0.03%, Er0.04%, other metals and nonmetallic impurity element total amount are no more than 0.5%, and remaining is Al.
The preparation method of above-mentioned aluminum alloy die casting, comprises the following steps：
(1) melt：First fine aluminium, pure magnesium, alusil alloy are added in smelting furnace, are heated to 730~750 DEG C and stir to make conjunction
Gold is completely melt, is then added ferroaluminium, magnesium strontium alloy, Al-Er alloy and alumal, is continuously heating to 780~800 DEG C,
Molten aluminium alloy is obtained after alloying element all fusing；
(2) refine：The temperature of molten aluminium alloy is adjusted to 750~770 DEG C, refining agent is sprayed into and carries out refining treatment, so
After be warming up to 750-760 DEG C, be passed through argon gas carry out refinery by de-gassing, examine molten aluminium alloy composition it is qualified after complete refining process；
(3) stand：Molten aluminium alloy after refining is stood, treats that molten aluminium alloy temperature is down to 690~710 DEG C；
(4) die casting：The die cavity of mould is preheated to 220~230 DEG C, then by after the molten aluminium alloy after step (3) processing
Injection into the die cavity of mould, wherein fill liquation flow velocity when type starts be 0.26~0.30m/s, casting pressure be 50~
55MPa, after filling type rate more than 60%, flow velocity to 1.7~1.9m/s, the casting pressure for improving liquation is 65~70MPa, until filling
Type die casting terminates；
(5) it is stripped：It is 100~110s that die casting, which terminates the rear dwell time, lays down pressure, cools down to be stripped after 20~25s and produces
Die casting finished product.
Using 1cm tensile samples made from the above method, its mechanical performance is tested at room temperature：Tensile strength is
297MPa, yield strength 213MPa, elongation percentage 9.2%.
Embodiment 3
The mass percent of a kind of aluminum alloy die casting, its component and each component is：Si6%, Mg3%, Mn1.2%,
Fe1.8%, Sr0.08%, Er0.06%, other metals and nonmetallic impurity element total amount are no more than 0.5%, and remaining is Al.
The preparation method of above-mentioned aluminum alloy die casting, comprises the following steps：
(1) melt：First fine aluminium, pure magnesium, alusil alloy are added in smelting furnace, are heated to 730~750 DEG C and stir to make conjunction
Gold is completely melt, is then added ferroaluminium, magnesium strontium alloy, Al-Er alloy and alumal, is continuously heating to 780~800 DEG C,
Molten aluminium alloy is obtained after alloying element all fusing；
(2) refine：The temperature of molten aluminium alloy is adjusted to 750~770 DEG C, refining agent is sprayed into and carries out refining treatment, so
After be warming up to 750-760 DEG C, be passed through argon gas carry out refinery by de-gassing, examine molten aluminium alloy composition it is qualified after complete refining process；
(3) stand：Molten aluminium alloy after refining is stood, treats that molten aluminium alloy temperature is down to 690~710 DEG C；
(4) die casting：The die cavity of mould is preheated to 220~230 DEG C, then by after the molten aluminium alloy after step (3) processing
Injection into the die cavity of mould, wherein fill liquation flow velocity when type starts be 0.26~0.30m/s, casting pressure be 50~
55MPa, after filling type rate more than 60%, flow velocity to 1.7~1.9m/s, the casting pressure for improving liquation is 65~70MPa, until filling
Type die casting terminates；
(5) it is stripped：It is 100~110s that die casting, which terminates the rear dwell time, lays down pressure, cools down to be stripped after 20~25s and produces
Die casting finished product.
Using 1cm tensile samples made from the above method, its mechanical performance is tested at room temperature：Tensile strength is
329MPa, yield strength 262MPa, elongation percentage 11.5%.
Claims (1)
- A kind of 1. aluminum alloy die casting, it is characterised in that：The component of the aluminum alloy die casting and the mass percent of each component are：Si3~6%, Mg2~3%, Mn0.8~ 1.2%th, Fe1.1~1.8%, Sr0.03~0.08%, Er0.04~0.06%, other metals and nonmetallic impurity element are total Amount is no more than 0.5%, and remaining is Al；The preparation method of described aluminum alloy die casting, comprises the following steps：(1) melt：First fine aluminium, pure magnesium, alusil alloy are added in smelting furnace, 730~750 DEG C is heated to and stirring makes alloy complete Running down, ferroaluminium, magnesium strontium alloy, Al-Er alloy and alumal are then added, 780~800 DEG C is continuously heating to, waits to close Gold element obtains molten aluminium alloy after all melting；(2) refine：The temperature of molten aluminium alloy is adjusted to 750~770 DEG C, refining agent is sprayed into and carries out refining treatment, Ran Housheng Temperature is passed through argon gas and carries out refinery by de-gassing to 750-760 DEG C, and refining process is completed after examining molten aluminium alloy composition qualified；(3) stand：Molten aluminium alloy after refining is stood, treats that molten aluminium alloy temperature is down to 690~710 DEG C；(4) die casting：The die cavity of mould is preheated to 220~230 DEG C, then the molten aluminium alloy injection after step (3) processing is arrived In the die cavity of mould, wherein fill liquation flow velocity when type starts be 0.26~0.30m/s, casting pressure be 50~55MPa, fill type After rate is more than 60%, flow velocity to 1.7~1.9m/s, the casting pressure for improving liquation is 65~70MPa, until filling type die casting knot Beam；(5) it is stripped：It is 100~110s that die casting, which terminates the rear dwell time, lays down pressure, cools down to be stripped after 20~25s and produces die casting Part finished product.
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| CN105568080B true CN105568080B (en) | 2017-12-01 |
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Families Citing this family (5)
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| CN106077559A (en) * | 2016-08-04 | 2016-11-09 | 苏州利达铸造有限公司 | A kind of manufacture method cleaning air inlet |
| CN107630173A (en) * | 2017-09-23 | 2018-01-26 | 新沂市中诺新材料科技有限公司 | A kind of high-strength aluminum alloy processing technology |
| CN108326253A (en) * | 2018-02-02 | 2018-07-27 | 韶关市泰铭压铸有限公司 | A kind of production method of aluminium alloy compression casting motor aluminum hull |
| CN110551924B (en) * | 2018-05-30 | 2021-09-21 | 比亚迪股份有限公司 | Aluminum alloy and preparation method and application thereof |
| CN111500903A (en) * | 2020-04-02 | 2020-08-07 | 科曼车辆部件系统(苏州)有限公司 | A kind of non-heat-treated high-strength and high-toughness cast aluminum alloy and preparation method thereof |
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| CN102071341A (en) * | 2010-12-03 | 2011-05-25 | 中国兵器工业第五二研究所 | Cast aluminum-silicon alloy for engine cylinder head and heat treatment process |
| CN103484731A (en) * | 2013-08-12 | 2014-01-01 | 安徽环宇铝业有限公司 | Aluminum alloy for automobile wheel hubs and preparation method thereof |
| CN104561691A (en) * | 2015-01-26 | 2015-04-29 | 上海交通大学 | High-plasticity cast aluminum alloy and pressure casting preparation method thereof |
| CN104630578A (en) * | 2015-01-26 | 2015-05-20 | 上海交通大学 | High-plasticity cast aluminum alloy and gravity casting preparation method thereof |
| CN105112736A (en) * | 2015-09-07 | 2015-12-02 | 苏州凯宥电子科技有限公司 | Die-cast aluminum alloy and preparing method thereof |
-
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- 2016-01-27 CN CN201610054598.1A patent/CN105568080B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071341A (en) * | 2010-12-03 | 2011-05-25 | 中国兵器工业第五二研究所 | Cast aluminum-silicon alloy for engine cylinder head and heat treatment process |
| CN103484731A (en) * | 2013-08-12 | 2014-01-01 | 安徽环宇铝业有限公司 | Aluminum alloy for automobile wheel hubs and preparation method thereof |
| CN104561691A (en) * | 2015-01-26 | 2015-04-29 | 上海交通大学 | High-plasticity cast aluminum alloy and pressure casting preparation method thereof |
| CN104630578A (en) * | 2015-01-26 | 2015-05-20 | 上海交通大学 | High-plasticity cast aluminum alloy and gravity casting preparation method thereof |
| CN105112736A (en) * | 2015-09-07 | 2015-12-02 | 苏州凯宥电子科技有限公司 | Die-cast aluminum alloy and preparing method thereof |
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Effective date of registration: 20180612 Address after: 321300 No. 123 Jin Gui Nan Road, Chengxi New District, Yongkang, Jinhua, Zhejiang Patentee after: ZHEJIANG WISOM INDUSTRY AND TRADE Co.,Ltd. Address before: 531400 Road 5, Pingguo Industrial Zone, Baise, the Guangxi Zhuang Autonomous Region. Patentee before: GUANGXI PINGGUO ALUMINIUM ALLOY PRECISION CASTING CO.,LTD. |
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Address after: 321300 No. 123 Jin Gui Nan Road, Chengxi New District, Yongkang, Jinhua, Zhejiang Patentee after: Zhejiang Feizhe Technology Co.,Ltd. Address before: 321300 No. 123 Jin Gui Nan Road, Chengxi New District, Yongkang, Jinhua, Zhejiang Patentee before: ZHEJIANG WISOM INDUSTRY AND TRADE Co.,Ltd. |