CN102230101A - Method for preparing B4C/Y112 aluminum base composite material semi-solid slurry - Google Patents
Method for preparing B4C/Y112 aluminum base composite material semi-solid slurry Download PDFInfo
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- CN102230101A CN102230101A CN2011101624992A CN201110162499A CN102230101A CN 102230101 A CN102230101 A CN 102230101A CN 2011101624992 A CN2011101624992 A CN 2011101624992A CN 201110162499 A CN201110162499 A CN 201110162499A CN 102230101 A CN102230101 A CN 102230101A
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Abstract
The invention provides a method for preparing B4C/Y112 aluminum base composite material semi-solid slurry. The method comprises the following steps of: first, putting a matrix material Y112 aluminum alloy ingot into a melting furnace and heating the aluminum alloy ingot to reach the temperature of 630-640 DEG C; refining the aluminum alloy ingot at the temperature; after standing for 20-30 min, cooling the aluminum alloy ingot to reach 595-605 DEG C; pouring liquid aluminum alloy into mechanical stirring equipment by using a pouring pipe; stirring the liquid aluminum alloy for 5-8 min at a speed of 400-600 r/min to reach a set stirring temperature of 565-585 DEG C; adding B4C reinforcing particles; and stirring for 5-8 min at a constant temperature of 565-585 DEG C so as to obtain the B4C/Y112 aluminum base composite material semi-solid slurry. The method for preparing the B4C/Y112 aluminum base composite material semi-solid slurry, provided by the invention, has the advantages of fine and uniform B4C/Y112 semi-solid structures, good nodulizing effect, simple process, safety, reliability, convenience for operation and no pollution of three wastes; and the semi-solid forming requirement is completely satisfied.
Description
Technical field
The present invention relates to a kind of preparation method of semi solid slurry, relate in particular to a kind of preparation method of B4C/Y112 aluminum matrix composite semi solid slurry.
Background technology
Along with the high speed development of science and technology, make people more and more higher to the requirement of material, high intensity should gently be arranged again.Particularly at aerospace field, the performance of traditional metallic substance can not satisfy the demand of this industry, so metal-base composites arises.Compare conventional metals, it has, and higher ratio is strong, specific rigidity and wear resistance; Compare with stupalith, it has high tenacity and high impact resistance again, in recent decades, research about metal-base composites (MMCs) emerges in an endless stream, and has also obtained great breakthrough in some research field, but still has very long stretch journey from practical application, simultaneously, although metal-base composites has high specific tenacity and specific rigidity, its plasticity is unsatisfactory, is unfavorable for the plastic working of matrix material secondary.Along with semi-solid state forming technique and theoretical development and maturation, both type material Development of Preparation Technology that is combined into have been guided a good direction.
Mechanical mixing method is the main method that a kind of suitable large-scale commercial production prepares particle enhanced aluminum-based composite material, and technological operation is simple, and preparation cost is cheap.Compare with the liquid metal of identical component, semi-solid metal slurry has quite high apparent viscosity, utilizes mechanical stirring can be relatively easy to enhanced granule is joined in the metallic matrix.Compare other traditional methods, comparatively steady by the composite material forming that semi-solid state stirring obtains, and there are not eddy current and injection, reduced macrosegregation, solidification shrinkage and mold temperature have been reduced, can solve in the Composite Preparation process that the nonmetal enhancing body that occurs easily is floating, segregation and the nonwetting technical barrier of metallic matrix, and enhanced granule is evenly distributed in matrix.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of B4C/Y112 aluminum matrix composite semi solid slurry, this method technology is simple, safe and reliable, easy to operate, and three-waste free pollution.
The present invention is achieved like this, method steps is: at first body material Y112 aluminum alloy ingot is put into smelting furnace internal heating to 630～640 ℃, and in this temperature refining, after leaving standstill 20～30 min, be cooled to 595～605 ℃, through gate spool liquid aluminium alloy is poured in the mechanical stirring equipment, speed with 400～600r/min stirs 5～8min to 565～585 ℃ of the whipping temps of setting, add the B4C enhanced granule, stir 5～8min at 565～585 ℃ of isothermals, obtain B4C/Y112 aluminum matrix composite semi solid slurry.
Described B4C enhanced granule massfraction is 3.0-12.0wt%, and under 395～405 ℃ of temperature condition thermal pretreatment 2h.
Technique effect of the present invention is: the B4C/Y112 microstructure of semisolid that obtains is tiny evenly, and nodularization is effective, satisfies the semi-solid-state shaping requirement fully, and technology is simple, safe and reliable, easy to operate, and three-waste free pollution.
Description of drawings
Fig. 1 is B under the invention process example 1 condition
4C/Y112 aluminum matrix composite microstructure of semisolid pattern.
Fig. 2 is B under the invention process example 2 conditions
4C/Y112 aluminum matrix composite microstructure of semisolid pattern.
Embodiment
The present invention will be described further by following examples.
B described in the present embodiment
4C/Y112 aluminum matrix composite semi solid slurry is by mechanical mixing method preparation, wherein B
4The content of C is 3.0-12.0wt.%.
Embodiment 1
As shown in Figure 1, the Y112 aluminium alloy is in the stirring velocity of 595 ℃ of beginnings with 500r/min, stirs 5min to 575 ℃ while lowering the temperature, add preheating then after, massfraction be 3wt% B
4The C particle, 575 ℃ again isothermal stir the 5min cast and obtain semi-solid B
4The C/Y112 matrix material.
Embodiment 2
As shown in Figure 2, the Y112 aluminium alloy is in the stirring velocity of 595 ℃ of beginnings with 500r/min, stirs 5min to 575 ℃ while lowering the temperature, add preheating then after, massfraction is the B of 12wt%
4The C particle, 575 ℃ again isothermal stir the 5min cast and obtain semi-solid B
4The C/Y112 matrix material.
As can be seen from the figure, the B that adopts the present invention to obtain
4Crystal grain is tiny in the C/Y112 aluminum matrix composite tissue, and the roundness height is evenly distributed, and technology is simple, safe and reliable, easy to operate, and three-waste free pollution.
Claims (2)
1. the preparation method of a B4C/Y112 aluminum matrix composite semi solid slurry, it is characterized in that method steps is: at first body material Y112 aluminum alloy ingot is put into smelting furnace internal heating to 630～640 ℃, and in this temperature refining, after leaving standstill 20～30 min, be cooled to 595～605 ℃, through gate spool liquid aluminium alloy is poured in the mechanical stirring equipment, speed with 400～600r/min stirs 5～8min to 565～585 ℃ of the whipping temps of setting, add the B4C enhanced granule, stir 5～8min at 565～585 ℃ of isothermals, obtain B4C/Y112 aluminum matrix composite semi solid slurry.
2. the preparation method of a kind of B4C/Y112 aluminum matrix composite semi solid slurry according to claim 1 is characterized in that described B4C enhanced granule massfraction is 3.0-12.0wt%, and under 395～405 ℃ of temperature condition thermal pretreatment 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011101624992A CN102230101A (en) | 2011-06-16 | 2011-06-16 | Method for preparing B4C/Y112 aluminum base composite material semi-solid slurry |
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| CN2011101624992A CN102230101A (en) | 2011-06-16 | 2011-06-16 | Method for preparing B4C/Y112 aluminum base composite material semi-solid slurry |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170603A (en) * | 2013-03-27 | 2013-06-26 | 福建省瑞奥麦特轻金属有限责任公司 | Preparation method for aluminum alloy or magnesium alloy semi-solid sizing agents |
| CN103643060A (en) * | 2013-11-28 | 2014-03-19 | 中广核工程有限公司 | Preparation method of B4C/Al composite material |
| CN105264102A (en) * | 2013-06-19 | 2016-01-20 | 力拓加铝国际有限公司 | Aluminum alloy composition with improved elevated temperature mechanical properties |
| CN110724860A (en) * | 2019-11-18 | 2020-01-24 | 珠海市润星泰电器有限公司 | High-thermal-conductivity particle reinforced aluminum-based composite material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101574732A (en) * | 2009-06-19 | 2009-11-11 | 南昌大学 | Method for preparing semisolid Y113 aluminium alloy |
| CN101880787A (en) * | 2010-06-03 | 2010-11-10 | 南昌大学 | Preparation method of semi-solid B4Cp/AZ61 composite material |
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2011
- 2011-06-16 CN CN2011101624992A patent/CN102230101A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101574732A (en) * | 2009-06-19 | 2009-11-11 | 南昌大学 | Method for preparing semisolid Y113 aluminium alloy |
| CN101880787A (en) * | 2010-06-03 | 2010-11-10 | 南昌大学 | Preparation method of semi-solid B4Cp/AZ61 composite material |
Non-Patent Citations (2)
| Title |
|---|
| 周冰峰等: "机械搅拌法制备半固态铝合金的研究", 《特种铸造及有色合金》, vol. 29, no. 7, 31 December 2009 (2009-12-31), pages 625 - 628 * |
| 王东山等: "B4C/Al复合材料的研究进展及展望", 《材料导报》, vol. 21, 31 May 2007 (2007-05-31) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170603A (en) * | 2013-03-27 | 2013-06-26 | 福建省瑞奥麦特轻金属有限责任公司 | Preparation method for aluminum alloy or magnesium alloy semi-solid sizing agents |
| CN103170603B (en) * | 2013-03-27 | 2015-11-18 | 福建省瑞奥麦特轻金属有限责任公司 | The preparation method of a kind of aluminium alloy or magnesium alloy semisolid slurry |
| CN105264102A (en) * | 2013-06-19 | 2016-01-20 | 力拓加铝国际有限公司 | Aluminum alloy composition with improved elevated temperature mechanical properties |
| CN105264102B (en) * | 2013-06-19 | 2018-09-18 | 力拓加铝国际有限公司 | Aluminum alloy composition with improved high-temperature machinery characteristic |
| CN103643060A (en) * | 2013-11-28 | 2014-03-19 | 中广核工程有限公司 | Preparation method of B4C/Al composite material |
| CN103643060B (en) * | 2013-11-28 | 2016-04-20 | 中广核工程有限公司 | B 4c/Al matrix material and preparation method thereof |
| CN110724860A (en) * | 2019-11-18 | 2020-01-24 | 珠海市润星泰电器有限公司 | High-thermal-conductivity particle reinforced aluminum-based composite material and preparation method thereof |
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Application publication date: 20111102 |