CN106086538A - High-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy and casting method thereof - Google Patents
High-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy and casting method thereof Download PDFInfo
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Abstract
The present invention relates to high-temperature resistant nano ceramic particle and strengthen hypoeutectic al-si alloy and casting method thereof, use the component of following mass percent to constitute: Si 5～9%, Mg 0.1～0.5%, Cu 2～6%, Fe 0.6～1%, Mn 0.6～1%, Zr 0.05～0.1%, V 0.05～0.1%, Zn 0.05～0.2%, TiB2Granule 0.1～25%, surplus is Al.Compared with prior art, the high-temperature resistant nano ceramic particle enhancing hypoeutectic al-si alloy of the present invention is after die casting, and the room temperature tensile intensity of alloy is >=430MPa, and the tensile strength of 250 DEG C is >=376MPa, and the tensile strength of 300 DEG C is >=225MPa.The nano-ceramic particle of the present invention strengthens hypoeutectic al-si alloy and combines with its compression casting preparation method, improve nano-ceramic particle and strengthen the casting character of hypoeutectic al-si alloy, room temperature (20 DEG C) tensile strength and high temperature (250 DEG C and the 300 DEG C) tensile strength of alusil alloy are greatly improved, expand the range of application of tradition hypoeutectic al-si alloy.
Description
Technical field
The invention belongs to aluminum alloy materials technical field, especially relate to a kind of high-temperature resistant nano ceramic particle and strengthen Asia altogether
Brilliant alusil alloy and casting method thereof.
Background technology
Cast aluminium alloy gold utensil has proportion little, and specific strength is high, cast form performance and the series of advantages such as processing characteristics is good,
It is widely used in the middle of auto parts and components.The engine cylinder-body of major part car the most both at home and abroad, cylinder cap and piston are all adopted
With the Production of casting Al alloys of high intensity.Cast aluminium alloy gold being widely used on automobile, it is possible to effectively alleviate the weight of automobile
Amount, improves the fuel efficiency of electromotor, reduces the motor vehicle exhaust emission pollution to air.At present, as automobile engine cylinder head
The Cast aluminium alloy metal of materials'use is in hypoeutectic al-si alloy series, and the main commercial trade mark has domestic ZL101, ZL104
And ZL702A, the 319.0 of the U.S., the AC4B of Japan, and the G-AlSi6Cu4 aluminium alloy in Europe.Although the aluminum of these tradition trades mark
Silicon alloy has met use requirement, but when engine power improves further, this kind of casting hypoeutectic aluminium alloy is
It is difficult to meet the applied at elevated temperature requirement of engine cylinder cover.
In recent years, along with the appearance of more harsh automobile exhaust emission standard, the design power of automobile engine is also
Improve constantly.This make operating temperature that cylinder cap bears and and operating pressure significantly improve.Along with combustion chamber pressure is by about 14-
16MPa rises to 18-20MPa, and the air inlet/outlet bridge of the nose temperature of cylinder cap is brought up to nearly 300 DEG C by about 250 DEG C.This just requires to start
Machine cylinder cap casting hypoeutectic aluminum alloy materials, in addition to having good room-temperature property, also should have the high-temperature behavior of excellence.
Chinese patent CN104195383A discloses a kind of high-end automobile all-aluminium engine hypoeutectic al-si alloy material
And preparation method thereof, by adding Cu, Mn intensified element and Sr alterant element, develop a kind of high-strength and high ductility hypoeutectic aluminum silicon and close
Gold copper-base alloy.The optimum room temperature tensile intensity that this invention provides hypoeutectic al-si alloy material is 345MPa, but is not directed to material
High-temperature behavior is reported.Therefore, it is difficult to assess this material the most suitably as high-end automobile all-aluminium engine needing hold warm zero
Part uses.
Summary of the invention
It is an object of the invention to provide a kind of good casting property, room temperature and high-temperature behavior excellent, good resistance to of technology stability
High-temperature nano ceramic particle strengthens hypoeutectic al-si alloy and pressure casting processes thereof, be particularly suited for making petrol engine and
The cylinder cap of Diesel engine.
The purpose of the present invention can be achieved through the following technical solutions:
High-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy, uses the component of following mass percent to constitute:
Si 5～9%, Mg 0.1～0.5%, Cu 2～6%, Fe 0.6～1%, Mn 0.6～1%, Zr 0.05～
0.1%, V 0.05～0.1%, TiB2Granule 0.1～25%, surplus is Al.
Preferably, the component using following mass percent is constituted: Si 7.5～8.5%, Mg 0.2～0.4%, Cu 4
～5%, Fe 0.6～1%, Mn 0.6～1%, Zr 0.05～0.1%, V 0.05～0.1%, TiB2Granule 0.1～25%,
Surplus is Al.
It is further preferred that TiB2Granule be particle diameter be the nano-particle of 20-300nm.
It is further preferred that TiB2Granule be shaped as hexagon or rectangle.
It is further preferred that TiB2Granule is evenly distributed in alusil alloy, clean interfaces and without interfacial reaction.
High-temperature resistant nano ceramic particle strengthens the casting method of hypoeutectic al-si alloy, comprises the following steps:
A () melting nano-ceramic particle strengthens hypoeutectic al-si alloy, obtain nano-ceramic particle and strengthen hypoeutectic aluminum silicon
Alloy melt；
B () carries out compression casting to aluminium alloy melt, obtain nano-ceramic particle and strengthen hypoeutectic al-si alloy foundry goods.
Preferably, step (a) specifically uses following steps:
(1) fusing aluminium ingot, is warming up to 880～1000 DEG C；
(2) by KBF4、K2TiF6Uniformly mix for 1:1.4-1.8 in mass ratio, add in melt after drying, carry out machinery
Stirring, is passed through noble gas in melt simultaneously；
(3) take out reaction slag, add Si, Mg and Al-50%Cu, Al-20%Fe, Al-10%Mn, Al-10%Zr
With Al-5%V intermediate alloy, add refining agent in the melt and carry out refinery by de-gassing, take off removing dross, obtain nano-ceramic particle and increase
Strong hypoeutectic al-si alloy melt.
It is further preferred that refining agent is the conventional aluminum refining agent containing inorganic salt or hexachlorethane, described refine
The addition of agent is less than the 4% of raw material gross weight.
It is further preferred that in Al-50%Cu intermediate alloy, the mass percent of Cu is 50%, surplus is Al；Al-20%
In Fe intermediate alloy, the mass percent of Fe is 20%, and surplus is Al；In Al-10%Mn intermediate alloy, the mass percent of Mn
Being 10%, surplus is Al；In Al-10%Zr intermediate alloy, the mass percent of Zr is 10%, and surplus is Al；In the middle of Al-5%V
In alloy, the mass percent of V is 5%, and surplus is Al.
Preferably, step (b) specifically uses following steps: the nano-ceramic particle obtained is strengthened hypoeutectic al-si alloy
Melt is at 700 DEG C～750 DEG C, in the middle of the speed injection with 0.3～4.0m/s to the mould through 180 DEG C～230 DEG C preheatings,
Take out after cooling, obtain nano-ceramic particle and strengthen hypoeutectic al-si alloy.
Compared with prior art, in the present invention, Si content is 5～9%, and the existence of Si element ensure that the stream of alloy melt
The dynamic casting character such as property and hot tearing；Add Cu and Mg element in the alloy, can be with medium-temperature reinforced phase Al of forming chamber2Cu and Mg2Si and
High-Temperature Strengthening phase Al5Cu2Mg8Si6And Al8FeMg3Si6；Zr and V energy refining aluminum alloy tissue, puies forward heavy alloyed mechanical property.Right
For the aluminium alloy of compression casting, Fe constituent content need to be more than 0.6% to prevent foundry goods mucosa and to improve the high temperatures of foundry goods
Can, but a large amount of of β-AlFeSi phase that the Fe element of too high amount can cause needle-like or lamellar are formed.These phases easily isolate alloy
Matrix, causes the increase of die casting percent defective, and therefore Fe constituent content need to be less than 1.0%.Add appropriate Mn unit in the alloy
Element, the β-AlFeSi inversion of phases that can promote needle-like is block or spherical α-AlFeMnSi phase, to improve to a certain extent
The mechanical property of alloy, reduces alloy fragility.Meanwhile, the interpolation of Mn element can also carry heavy alloyed heat stability and high temperature is held
Intensity for a long time.But, when the addition of Mn element is more than 1.0%, thick frangible compounds can be formed, reduce alloy on the contrary strong
Degree.
Alloy of the present invention is mainly by nanoscale TiB2The nanometer size effect of granule and this sexual clorminance of pottery.First
First, there is the TiB of nanoscale2Granule is from aluminum melt situ self-formed from reaction, and is combined with aluminum substrate coherence, the most more
Dissipate is distributed in alloy substrate, including intracrystalline and grain boundaries.It is distributed in the TiB of intracrystalline2Granule, during melt solidifies
Can be with crystal grain thinning, to put forward heavy alloyed room-temperature property.And when alloy is during high temperature deformation, the TiB of intracrystalline2Granule by
In it, there is nanoscale, pinning mobile dislocation can be passed through, to hinder matrix to deform, and carry heavy alloyed high temperature warm nature energy.
Additionally, be distributed in the TiB of crystal boundary2Granule, under conditions of room temperature and high temperature, can hinder Grain Boundary Sliding heavy alloyed to carry
Mechanical property.
Materials processing of the present invention is become the standard tensile specimen of a diameter of 6mm, according to GB/T228-2002 " metal material room
Temperature stretching experiment method " and GB/T4338-2006 " Metal Materials At High Temperature temperature stretching experiment method " test room temperature (20 DEG C) mechanics
Performance and high temperature (250 DEG C and 300 DEG C) mechanical property.The sample testing temperature retention time of mechanical behavior under high temperature is 30 minutes.Result
It is shown in Table 1.The nano-ceramic particle that the present invention prepares strengthens aluminium alloy, compared with available engine cylinder cap aluminium alloy, this
Room temperature (20 DEG C) tensile strength of invention aluminum alloy materials and high temperature (250 DEG C and 300 DEG C) tensile strength are all significantly improved.
Note: (1) ZL702A, 319.0, AC4B and G-AlSi6Cu4 are respectively China, the U.S., Japan and the typical cylinder in Europe
Lid uses Hypoeutectic Cast Al-Si Alloys material.(2) in table, data are actual measurement minima.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
A kind of high-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy, by the component structure of following mass percentage content
Become: Si 8.5%, Mg 1.2%, Cu 5%, Fe 0.6%, Mn 0.6%, Zr 0.1%, V 0.1%, TiB2 granule 25%,
Surplus is Al.Wherein, TiB2 granule is the particle diameter nano-particle at 20nm, is shaped as hexagon.TiB2 granule is evenly distributed on
In aluminium alloy, clean interfaces and without interfacial reaction.
High-temperature resistant nano ceramic particle strengthens the preparation method of hypoeutectic al-si alloy, employing following steps:
(1) fusing aluminium ingot, is warming up to 880 DEG C；
(2) KBF4, K2TiF6 are uniformly mixed for 1:1.4 in mass ratio, add in melt after drying, carry out machinery and stir
Mix, in melt, be passed through Ar simultaneously；
(3) take out reaction slag, add Si, Mg and Al-50%Cu, Al-20%Fe, Al-10% according to above-mentioned formula
Mn, Al-10%Zr and Al-5%V intermediate alloy, adds refining agent in the melt (for the conventional alloy refining containing potassium salt
Agent) carry out refinery by de-gassing, take off removing dross, obtain aluminium alloy melt, prepare cast.
(4) compression casting: keeping aluminium alloy melt temperature is 700 DEG C, and mold temperature is 180 DEG C, and injection speed is 0.3m/
s。
The high-temperature resistant nano ceramic particle that in the present embodiment prepared by compression casting strengthens the room temperature of hypoeutectic al-si alloy
Tensile strength is 496MPa, and the tensile strength of high temperature is respectively 435MPa (250 DEG C) and 282MPa (300 DEG C).
Embodiment 2
A kind of high-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy, by the component structure of following mass percentage content
Become: Si 7.8%, Mg 0.6%, Cu 4.2%, Fe 0.7%, Mn 0.8%, Zr 0.05%, V 0.05%, TiB2 granule
8%, surplus is Al.Wherein, TiB2 granule is the particle diameter nano-particle at 300nm, is shaped as rectangle.TiB2 granule uniformly divides
Cloth in aluminium alloy, clean interfaces and without interfacial reaction.
High-temperature resistant nano ceramic particle strengthens the preparation method of hypoeutectic al-si alloy, employing following steps:
(1) fusing aluminium ingot, is warming up to 1000 DEG C；
(2) KBF4, K2TiF6 are uniformly mixed for 1:1.8 in mass ratio, add in melt after drying, carry out machinery and stir
Mix, in melt, be passed through Ar simultaneously；
(3) take out reaction slag, add Si, Mg and Al-50%Cu, Al-20%Fe, Al-10% according to above-mentioned formula
Mn, Al-10%Zr and Al-5%V intermediate alloy, adds refining agent in the melt (for the conventional alloy refining containing sodium salt
Agent) carry out refinery by de-gassing, take off removing dross, obtain aluminium alloy melt, prepare cast.
(4) compression casting: keeping aluminium alloy melt temperature is 750 DEG C, and mold temperature is 230 DEG C, and injection speed is 4.0m/
s。
In the present embodiment, the nano-ceramic particle of preparation strengthens the tensile strength of Aluminum Alloy Room Temperature is 472MPa, resisting of high temperature
Tensile strength is respectively 405MPa (250 DEG C) and 263MPa (300 DEG C).
Embodiment 3
A kind of high-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy, by the component structure of following mass percentage content
Become: Si 7.5%, Mg 0.2%, Cu 4%, Fe 0.9%, Mn 0.6%, Zr 0.1%, V 0.05%, TiB2 granule
0.1%, surplus is Al.Wherein, TiB2 granule is the particle diameter nano-particle at 20-30nm.TiB2 granule be shaped as hexagon.
TiB2 granule is evenly distributed in aluminium alloy, clean interfaces and without interfacial reaction.
A kind of high-temperature resistant nano ceramic particle strengthens the preparation method of hypoeutectic al-si alloy, and the method includes following step
Rapid:
(1) fusing aluminium ingot, is warming up to 900 DEG C；
(2) KBF4, K2TiF6 are uniformly mixed for 1:1.6 in mass ratio, add in melt after drying, carry out machinery and stir
Mix, in melt, be passed through noble gas Ar simultaneously；
(3) take out reaction slag, add Si, Mg and Al-50%Cu, Al-20%Fe, Al-10%Mn, Al-10%Zr
With Al-5%V intermediate alloy, add refining agent (being the conventional aluminum refining agent containing villiaumite) in the melt and carry out degasification
Refine, takes off removing dross, obtains aluminium alloy melt, prepares cast.
(4) compression casting: keeping aluminium alloy melt temperature is 720 DEG C, and mold temperature is 200 DEG C, and injection speed is 3m/s.
The tensile strength of the high-temperature resistant nano ceramic particle enhancing hypoeutectic al-si alloy room temperature of preparation in the present embodiment is
450MPa, the tensile strength of high temperature is respectively 391MPa (250 DEG C) and 243MPa (300 DEG C).
Embodiment 4
A kind of high-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy, by the component structure of following mass percentage content
Become: Si 8.5%, Mg 0.5%, Cu 4.5%, Fe 1.0%, Mn 1.0%, Zr0.05%, V 0.1%, TiB2 granule
20%, surplus is Al.Wherein, TiB2Granule is the particle diameter nano-particle at 200-300nm, and being shaped as of TiB2 granule is rectangular
Shape, TiB2Granule is evenly distributed in aluminium alloy, clean interfaces and without interfacial reaction.
A kind of high-temperature resistant nano ceramic particle strengthens the preparation method of hypoeutectic al-si alloy, and the method includes following step
Rapid:
(1) fusing aluminium ingot, is warming up to 950 DEG C；
(2) KBF4, K2TiF6 are uniformly mixed for 1:1.7 in mass ratio, add in melt after drying, carry out machinery and stir
Mix, in melt, be passed through noble gas Ar simultaneously；
(3) take out reaction slag, add Si, Mg and Al-50%Cu, Al-20%Fe, Al-10%Mn, Al-10%Zr
With Al-5%V intermediate alloy, add refining agent (hexachlorethane) in the melt and carry out refinery by de-gassing, take off removing dross, obtain aluminum and close
Gold melt, prepares cast.
(4) compression casting: keeping aluminium alloy melt temperature is 740 DEG C, and mold temperature is 220 DEG C, and injection speed is 4m/s.
The tensile strength of the high-temperature resistant nano ceramic particle enhancing hypoeutectic al-si alloy room temperature of preparation in the present embodiment is
430MPa, the tensile strength of high temperature is respectively 376MPa (250 DEG C) and 225MPa (300 DEG C).
Embodiment 5
High-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy, uses the component of following mass percent to constitute: Si
5%, Mg 0.1%, Cu 2%, Fe 0.6%, Mn 0.6%, Zr 0.05%, V 0.05%, TiB2Granule 0.1%, surplus is
Al.Wherein, TiB2Granule be particle diameter be the nano-particle of 20nm, be shaped as hexagon.TiB2Granule is evenly distributed on alusil alloy
In, clean interfaces and without interfacial reaction.
High-temperature resistant nano ceramic particle strengthens the casting method of hypoeutectic al-si alloy, comprises the following steps:
A () melting nano-ceramic particle strengthens hypoeutectic al-si alloy, obtain nano-ceramic particle and strengthen hypoeutectic aluminum silicon
Alloy melt, specifically uses following steps:
(1) fusing aluminium ingot, is warming up to 880 DEG C；
(2) by KBF4、K2TiF6Uniformly mix for 1:1.4 in mass ratio, add in melt after drying, carry out mechanical agitation,
In melt, it is passed through noble gas simultaneously；
(3) take out reaction slag, add Si, Mg and Al-50%Cu, Al-20%Fe, Al-10%Mn, Al-10%Zr
With Al-5%V intermediate alloy, adding refining agent in the melt and carry out refinery by de-gassing, refining agent is the conventional aluminum containing inorganic salt
Alloy refining agent, addition less than the 4% of raw material gross weight, is then taken off removing dross, is obtained nano-ceramic particle and strengthen hypoeutectic
Al-Si alloy melt；
B the nano-ceramic particle that obtains is strengthened hypoeutectic al-si alloy melt at 700 DEG C by (), with the speed of 0.3m/s
Injection, in the middle of 180 DEG C of moulds preheated, is taken out after cooling, obtains nano-ceramic particle and strengthens hypoeutectic al-si alloy casting
Part.
Embodiment 6
High-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy, uses the component of following mass percent to constitute: Si
7.5%, Mg 0.2%, Cu 4%, Fe 0.6%, Mn 0.6%, Zr 0.05%, V 0.05%, TiB2Granule 10%, surplus
For Al.Wherein, TiB2Granule be particle diameter be the nano-particle of 50nm, be shaped as hexagon.TiB2Granule is evenly distributed on aluminum silicon and closes
Jin Zhong, clean interfaces and without interfacial reaction.
High-temperature resistant nano ceramic particle strengthens the casting method of hypoeutectic al-si alloy, comprises the following steps:
A () melting nano-ceramic particle strengthens hypoeutectic al-si alloy, obtain nano-ceramic particle and strengthen hypoeutectic aluminum silicon
Alloy melt, specifically uses following steps:
(1) fusing aluminium ingot, is warming up to 1000 DEG C；
(2) by KBF4、K2TiF6Uniformly mix for 1:1.8 in mass ratio, add in melt after drying, carry out mechanical agitation,
In melt, it is passed through noble gas simultaneously；
(3) take out reaction slag, add Si, Mg and Al-50%Cu, Al-20%Fe, Al-10%Mn, Al-10%Zr
With Al-5%V intermediate alloy, adding hexachlorethane refining agent in the melt and carry out refinery by de-gassing, addition is less than raw material gross weight
4%, then take off removing dross, obtain nano-ceramic particle strengthen hypoeutectic al-si alloy melt；
B the nano-ceramic particle that obtains is strengthened hypoeutectic al-si alloy melt at 750 DEG C by (), with the speed of 0.4m/s
Injection, in the middle of 230 DEG C of moulds preheated, is taken out after cooling, obtains nano-ceramic particle and strengthens hypoeutectic al-si alloy casting
Part.
Embodiment 7
High-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy, uses the component of following mass percent to constitute: Si
8.5%, Mg 0.4%, Cu 5%, Fe1%, Mn 1%, Zr 0.1%, V 0.1%, TiB2Granule 25%, surplus is Al.Its
In, TiB2Granule be particle diameter be the nano-particle of 300nm, be shaped as hexagon.TiB2Granule is evenly distributed in alusil alloy,
Clean interfaces and without interfacial reaction.The preparation method of this kind of alloy is same as in Example 6.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use invention.
These embodiments obviously easily can be made various amendment by person skilled in the art, and described herein typically
Principle is applied in other embodiments without through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel should be the present invention's according to the announcement of the present invention, the improvement made without departing from scope and amendment
Within protection domain.
Claims (10)
1. high-temperature resistant nano ceramic particle strengthens hypoeutectic al-si alloy, it is characterised in that use the group of following mass percent
Divide and constitute:
Si 5～9%, Mg 0.1～0.5%, Cu 2～6%, Fe 0.6～1%, Mn 0.6～1%, Zr 0.05～0.1%,
V 0.05～0.1%, TiB2Granule 0.1～25%, surplus is Al.
High-temperature resistant nano ceramic particle the most according to claim 1 strengthens hypoeutectic al-si alloy, it is characterised in that preferably
Use following components: Si 7.5～8.5%, Mg 0.2～0.4%, Cu 4～5%, Fe 0.6～1%, Mn 0.6～1%, Zr
0.05～0.1%, V 0.05～0.1%, TiB2Granule 0.1～25%, surplus is Al.
High-temperature resistant nano ceramic particle the most according to claim 1 and 2 strengthens hypoeutectic al-si alloy, it is characterised in that
Described TiB2Granule be particle diameter be the nano-particle of 20-300nm.
High-temperature resistant nano ceramic particle the most according to claim 1 and 2 strengthens hypoeutectic al-si alloy, it is characterised in that
Described TiB2Granule be shaped as hexagon or rectangle.
High-temperature resistant nano ceramic particle the most according to claim 1 and 2 strengthens hypoeutectic al-si alloy, it is characterised in that
Described TiB2Granule is evenly distributed in alusil alloy.
6. high-temperature resistant nano ceramic particle as claimed in claim 1 strengthens the casting method of hypoeutectic al-si alloy, its feature
Being, the method comprises the following steps:
A () melting nano-ceramic particle strengthens hypoeutectic al-si alloy, obtain nano-ceramic particle and strengthen hypoeutectic al-si alloy
Melt；
B () carries out compression casting to aluminium alloy melt, obtain nano-ceramic particle and strengthen hypoeutectic al-si alloy foundry goods.
High-temperature resistant nano ceramic particle the most according to claim 6 strengthens the casting method of hypoeutectic al-si alloy, and it is special
Levying and be, step (a) specifically uses following steps:
(1) fusing aluminium ingot, is warming up to 880～1000 DEG C；
(2) by KBF4、K2TiF6Uniformly mix for 1:1.4-1.8 in mass ratio, add in melt after drying, carry out mechanical agitation,
In melt, it is passed through noble gas simultaneously；
(3) take out reaction slag, add Si, Mg and Al-50%Cu, Al-20%Fe, Al-10%Mn, Al-10%Zr and Al-
5%V intermediate alloy, adds refining agent in the melt and carries out refinery by de-gassing, take off removing dross, obtains nano-ceramic particle and strengthens Asia altogether
Brilliant Al-Si alloy melt.
High-temperature resistant nano ceramic particle the most according to claim 7 strengthens the casting method of hypoeutectic al-si alloy, and it is special
Levying and be, described refining agent is the conventional aluminum refining agent containing inorganic salt or hexachlorethane, adding of described refining agent
Dosage is not more than the 4% of raw material gross weight.
High-temperature resistant nano ceramic particle the most according to claim 7 strengthens the casting method of hypoeutectic al-si alloy, and it is special
Levying and be, in described Al-50%Cu intermediate alloy, the mass percent of Cu is 50%, and surplus is Al；In the middle of Al-20%Fe
In alloy, the mass percent of Fe is 20%, and surplus is Al；In Al-10%Mn intermediate alloy, the mass percent of Mn is
10%, surplus is Al；In Al-10%Zr intermediate alloy, the mass percent of Zr is 10%, and surplus is Al；Close in the middle of Al-5%V
The mass percent of Jin Zhong, V is 5%, and surplus is Al.
High-temperature resistant nano ceramic particle the most according to claim 6 strengthens the casting method of hypoeutectic al-si alloy, and it is special
Levying and be, step (b) specifically uses following steps: existed by the nano-ceramic particle obtained enhancing hypoeutectic al-si alloy melt
At 700 DEG C～750 DEG C, in the middle of the speed injection with 0.3～4.0m/s to the mould through 180 DEG C～230 DEG C preheatings, after cooling
Take out, obtain nano-ceramic particle and strengthen hypoeutectic al-si alloy.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195383A (en) * | 2014-09-05 | 2014-12-10 | 天津立中合金集团有限公司 | Hypoeutectic Al-Si alloy material for all-aluminum engine of high-grade car and preparation method of hypoeutectic Al-Si alloy material |
| CN104630577A (en) * | 2015-01-26 | 2015-05-20 | 上海交通大学 | Heat-resistant cast aluminum alloy and pressure casting method thereof |
| CN105483451A (en) * | 2015-12-09 | 2016-04-13 | 上海交通大学 | Nano ceramic particle reinforcing aluminum alloy for piston and manufacturing method of nano ceramic particle reinforcing aluminum alloy |
-
2016
- 2016-06-21 CN CN201610453540.4A patent/CN106086538A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195383A (en) * | 2014-09-05 | 2014-12-10 | 天津立中合金集团有限公司 | Hypoeutectic Al-Si alloy material for all-aluminum engine of high-grade car and preparation method of hypoeutectic Al-Si alloy material |
| CN104630577A (en) * | 2015-01-26 | 2015-05-20 | 上海交通大学 | Heat-resistant cast aluminum alloy and pressure casting method thereof |
| CN105483451A (en) * | 2015-12-09 | 2016-04-13 | 上海交通大学 | Nano ceramic particle reinforcing aluminum alloy for piston and manufacturing method of nano ceramic particle reinforcing aluminum alloy |
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| CN108070733B (en) * | 2017-06-12 | 2020-01-07 | 吉林大学 | Novel nanometer titanium boride ceramic aluminum composite welding wire rod |
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| CN114761152A (en) * | 2020-02-06 | 2022-07-15 | 株式会社Uacj | Aluminum alloy ingot and method for producing same |
| EP4098382A4 (en) * | 2020-02-06 | 2022-12-21 | UACJ Corporation | Aluminum alloy ingot and method for manufacturing same |
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| CN115044806A (en) * | 2022-06-17 | 2022-09-13 | 大连科天新材料有限公司 | Aluminum alloy additive and preparation method and application thereof |
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