CN106756144A - A kind of Al Si alloys composite inoculating technique - Google Patents
A kind of Al Si alloys composite inoculating technique Download PDFInfo
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- CN106756144A CN106756144A CN201610989660.6A CN201610989660A CN106756144A CN 106756144 A CN106756144 A CN 106756144A CN 201610989660 A CN201610989660 A CN 201610989660A CN 106756144 A CN106756144 A CN 106756144A
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- alloy
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- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 12
- 229910021364 Al-Si alloy Inorganic materials 0.000 title claims description 43
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 42
- 239000000956 alloy Substances 0.000 claims abstract description 42
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 50
- 229910052710 silicon Inorganic materials 0.000 claims description 50
- 239000010703 silicon Substances 0.000 claims description 50
- 239000000155 melt Substances 0.000 claims description 23
- 241000282887 Suidae Species 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 229910018125 Al-Si Inorganic materials 0.000 claims description 2
- 229910018520 Al—Si Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002574 poison Substances 0.000 abstract description 2
- 231100000614 poison Toxicity 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 230000005496 eutectics Effects 0.000 description 5
- 231100000572 poisoning Toxicity 0.000 description 4
- 230000000607 poisoning effect Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910018505 Ni—Mg Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 210000002257 embryonic structure Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention discloses a kind of composite inoculating method, by alloy and the alloy of low Si contents using high Si content, go bad respectively, be then mixed to get the alloy of target Si contents, can solve the problem that the phenomenon that P, Sr mutually poison, obtain extraordinary composite inoculating effect.
Description
Technical field
The present invention relates to metal treatment art, more particularly to a kind of Al-Si alloys composite inoculating technique.
Background technology
Sr is widely used as the long-acting alterant of eutectic Al-Si alloy, because of the spy of its rotten eutectic structure
Point goes bad similar to Na, therefore generally believes that the metamorphism of Sr is similar to Na.Liu Qiyang of Harbin Institute of Technology et al. is used
The method for introducing single crystal seed, investigates the influence that Sr grows to Si phase epitaxies, and detection Sr has inquired into Sr in the absorption on Si crystalline substances surface
Metamorphic mechanism.The primary crystal plate quantity that extension grows in single crystal seed substrate is reduced it was found that Sr goes bad, that is, reduces activity
The number of substrate, illustrates " to have poisoned " amount of activated substrate, it is lost the effect as effective substrate, it is seen then that Sr goes bad shadow
The forming core of Si phases is rung, Si embryos " poisoning " can be made and its effect as nucleus is lost.They have found { 111 }Si{ 100 }SiOn
There is the absorption of Sr, so in eutectic growth, the aufwuchsplate { 111 } of Si phasesSiThe growth of Si phases is hindered after absorption Sr, change is produced
Matter phenomenon.Sr is physical absorption in the absorption of Si phase surfaces, is adsorbed with a saturation value, reaches this value and plays the work that goes bad completely
With.
For Sr to poisoning that P goes bad, it was originally thought that being the structure that Sr destroys A1P particles, new phase, Zuo Min are generated
Doctor had found in the Al-Si alloys for add at 700 DEG C Sr, A1P do not have with Sr reactions, and Poisoning Phenomenon remains unchanged.This explanation,
Because A1P is extremely similar to Si lattices, Sr is still probably that absorption makes it lose as the effect of nucleus on the surface of A1P particles.
Therefore, the key of P, Sr composite inoculating is realized, should avoid contacts of the A1P with Sr in Al-Si melts.Then more
Easy is：Alterant containing P is first added, temperature is reduced, Si phases is encased AlP particles, add Sr.But the effect of this mode
Not substantially, reason is that new effective nucleation no longer occurs to fruit, and the Si separated out from melt makes original nuclei growth, equally goes out
Existing Poisoning Phenomenon.
The content of the invention
It is an object of the invention to propose a kind of Al-Si alloys composite inoculating technique, can solve the problem that what P, Sr mutually poisoned
Phenomenon, obtains extraordinary composite inoculating effect.
It is that, up to this purpose, the present invention uses following technical scheme：
A kind of Al-Si alloys composite inoculating technique, it uses silicon Al-Si alloy pigs high and low silicon Al-Si alloy pigs, wherein
Silicon Al-Si alloy pigs silicone content high and low silicon Al-Si alloy pigs silicone content are absolute with the difference of the Al-Si alloy silicon contents
Value is equal, and it includes：
(1) silicon Al-Si alloy pigs high are heated to 760-800 DEG C of formation melt in firing equipment, and by low silicon Al-Si
Alloy pig is heated to 700-740 DEG C of formation melt in another firing equipment, and is incubated respectively；
(2) P is carried out to silicon Al-Si alloy melts high to go bad, and Sr is carried out to low silicon Al-Si alloy melts and is gone bad；
(3) after silicon Al-Si alloy melts high, low silicon Al-Si alloy pigs after will be rotten be cooled to less than 660 DEG C respectively,
Silicon Al-Si alloy melts high are mixed with low silicon Al-Si alloy melt equal proportions；
(4) blend melt is poured into and obtained in mould Al-Si alloy pigs.
Al-Si alloys of the present invention are the known alloys of this area, and it is applied to including Al-Si-Cu-Ni-Mg etc.
The Al-Si alloys of automobile engine all parts, the present invention is not limited specifically it.
Preferably, in step (2), silicon Al-Si alloy melts high carry out P and go bad by the Al- for adding 0.8-1.4wt%
3.5P intermediate alloys are gone bad.
Preferably, in step (2), low silicon Al-Si alloy melts carry out Sr and go bad by the Al- for adding 0.8-1.4wt%
10Sr intermediate alloys are gone bad.
In Modification Manners of the invention, its alloy for obtaining, α-Al, primary crystal Si, eutectic Si obtain good refinement, close
Payment organization is covered with coralloid eutectic Si, and the tiny primary crystal Si of pattern rule, and this Tissue distribution is changed between being conducive to metal
The dispersion of compound, will improve the comprehensive mechanical performance of alloy.It is particularly suitable for extrusion casint and semi-solid casting etc..
Modification Manners of the invention, by alloy and the alloy of low Si contents using high Si content, go bad, then respectively
The alloy of target Si contents is mixed to get, the phenomenon that P, Sr mutually poison is can solve the problem that, extraordinary composite inoculating effect is obtained.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of Al-15Si alloys composite inoculating technique, it uses silicon Al-18Si alloy pigs high and low silicon Al-12Si alloys
Ingot, it includes：
(1) silicon Al-18Si alloy pigs high are heated to 760 DEG C of formation melts in firing equipment, and by low silicon Al-12Si
Alloy pig is heated to 700 DEG C of formation melts in another firing equipment, and is incubated respectively；
(2) add the Al-3.5P intermediate alloys of 0.8wt% to carry out P to silicon Al-18Si alloy melts high to go bad, to low silicon
It is rotten that Al-12Si alloy melts add the Al-10Sr intermediate alloys of 0.8wt% to carry out Sr；
(3) silicon Al-18Si alloy melts high, low silicon Al-12Si alloy pigs after will be rotten be cooled to less than 660 DEG C respectively
Afterwards, silicon Al-18Si alloy melts high are mixed with low silicon Al-12Si alloy melt equal proportions；
(4) blend melt is poured into and obtained in mould Al-15Si alloy pigs.
Embodiment 2
A kind of Al-14Si alloys composite inoculating technique, it uses silicon Al-18Si alloy pigs high and low silicon Al-10Si alloys
Ingot, it includes：
(1) silicon Al-18Si alloy pigs high are heated to 780 DEG C of formation melts in firing equipment, and by low silicon Al-10Si
Alloy pig is heated to 720 DEG C of formation melts in another firing equipment, and is incubated respectively；
(2) add the Al-3.5P intermediate alloys of 1.0wt% to carry out P to silicon Al-18Si alloy melts high to go bad, to low silicon
It is rotten that Al-10Si alloy melts add the Al-10Sr intermediate alloys of 1.0wt% to carry out Sr；
(3) silicon Al-18Si alloy melts high, low silicon Al-10Si alloy pigs after will be rotten be cooled to less than 660 DEG C respectively
Afterwards, silicon Al-18Si alloy melts high are mixed with low silicon Al-10Si alloy melt equal proportions；
(4) blend melt is poured into and obtained in mould Al-14Si alloy pigs.
Claims (3)
1. a kind of Al-Si alloys composite inoculating technique, it uses silicon Al-Si alloy pigs high and low silicon Al-Si alloy pigs, wherein high
The absolute value of silicon Al-Si alloy pigs silicone content and low silicon Al-Si alloy pigs silicone content and the difference of the Al-Si alloy silicon contents
Equal, it includes：
(1) silicon Al-Si alloy pigs high are heated to 760-800 DEG C of formation melt in firing equipment, and by low silicon Al-Si alloys
Ingot is heated to 700-740 DEG C of formation melt in another firing equipment, and is incubated respectively；
(2) P is carried out to silicon Al-Si alloy melts high to go bad, and Sr is carried out to low silicon Al-Si alloy melts and is gone bad；
(3) after silicon Al-Si alloy melts high, low silicon Al-Si alloy pigs after will be rotten be cooled to less than 660 DEG C respectively, by height
Silicon Al-Si alloy melts mix with low silicon Al-Si alloy melt equal proportions；
(4) blend melt is poured into and obtained in mould Al-Si alloy pigs.
2. Al-Si alloys composite inoculating technique according to claim 1, it is characterised in that in step (2), silicon Al-Si high
Alloy melt carries out P and to go bad gone bad by adding the Al-3.5P intermediate alloys of 0.8-1.4wt%.
3. Al-Si alloys composite inoculating technique according to claim 1, it is characterised in that in step (2), low silicon Al-Si
Alloy melt carries out Sr and to go bad gone bad by adding the Al-10Sr intermediate alloys of 0.8-1.4wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989660.6A CN106756144A (en) | 2016-11-10 | 2016-11-10 | A kind of Al Si alloys composite inoculating technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989660.6A CN106756144A (en) | 2016-11-10 | 2016-11-10 | A kind of Al Si alloys composite inoculating technique |
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| Publication Number | Publication Date |
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| CN106756144A true CN106756144A (en) | 2017-05-31 |
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| CN201610989660.6A Pending CN106756144A (en) | 2016-11-10 | 2016-11-10 | A kind of Al Si alloys composite inoculating technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295304A (en) * | 2019-07-11 | 2019-10-01 | 江苏轩辕特种材料科技有限公司 | A kind of aluminium silicon and the intermediate alloy of aluminium boron and preparation method thereof |
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| US20040170523A1 (en) * | 2003-01-23 | 2004-09-02 | Hubert Koch | Casting alloy |
| CN1609248A (en) * | 2003-10-17 | 2005-04-27 | 株式会社丰田中央研究所 | Aluminum alloy for casting, aluminum alloy casting and manufacturing method thereof |
| CN102560206A (en) * | 2012-02-27 | 2012-07-11 | 安徽省恒泰动力科技有限公司 | Rare-earth aluminum alloy piston material and preparation method thereof |
| CN103328668A (en) * | 2011-01-27 | 2013-09-25 | 日本轻金属株式会社 | High resistance aluminum alloy |
| US20160138137A1 (en) * | 2014-11-19 | 2016-05-19 | Hyundai Motor Company | Aluminum alloy for engine piston of automobile and method for producing the same |
-
2016
- 2016-11-10 CN CN201610989660.6A patent/CN106756144A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040170523A1 (en) * | 2003-01-23 | 2004-09-02 | Hubert Koch | Casting alloy |
| CN1450185A (en) * | 2003-05-07 | 2003-10-22 | 东华大学 | Hypereutectoid alpax with eutectic structure and technological method thereof |
| CN1609248A (en) * | 2003-10-17 | 2005-04-27 | 株式会社丰田中央研究所 | Aluminum alloy for casting, aluminum alloy casting and manufacturing method thereof |
| CN103328668A (en) * | 2011-01-27 | 2013-09-25 | 日本轻金属株式会社 | High resistance aluminum alloy |
| CN102560206A (en) * | 2012-02-27 | 2012-07-11 | 安徽省恒泰动力科技有限公司 | Rare-earth aluminum alloy piston material and preparation method thereof |
| US20160138137A1 (en) * | 2014-11-19 | 2016-05-19 | Hyundai Motor Company | Aluminum alloy for engine piston of automobile and method for producing the same |
Non-Patent Citations (1)
| Title |
|---|
| 李云国: "《A1-Si-Cu-Ni-Mg系活塞合金高温强化相的研究》", 《中国优秀硕士论文全文数据库工程科技1辑》 * |
Cited By (1)
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| CN110295304A (en) * | 2019-07-11 | 2019-10-01 | 江苏轩辕特种材料科技有限公司 | A kind of aluminium silicon and the intermediate alloy of aluminium boron and preparation method thereof |
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Application publication date: 20170531 |