CN103143679A - Strong cold casting copper mold for fabricating giant magnetostictive alloy disc - Google Patents
Strong cold casting copper mold for fabricating giant magnetostictive alloy disc Download PDFInfo
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- CN103143679A CN103143679A CN2013101021481A CN201310102148A CN103143679A CN 103143679 A CN103143679 A CN 103143679A CN 2013101021481 A CN2013101021481 A CN 2013101021481A CN 201310102148 A CN201310102148 A CN 201310102148A CN 103143679 A CN103143679 A CN 103143679A
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Abstract
The invention provides a strong cold casting copper mold for fabricating a giant magnetostictive alloy disc. The mold consists of an end cover, a bottom die and a cooling liquid, wherein the outer circle of the bottom die is provided with an annular groove, the cooling liquid composed of Ga-In-Sn and having strong cooling capability can be placed in the annular groove; the end cover can be separated from the bottom die and is removable. The cooling in two casting ways which are crucible casting and quartz tube casting can be realized by changing the end cover. The end cover is made of stainless steel and the bottom die is made of red copper. The inner circle of the bottom die is a casting cavity which is 5-10mm in height, and exhaust vents are equipped in the bottom of the casting cavity. The strong cold casting copper mold is capable of increasing the crystallization cooling speed of alloy ingot substantially and achieves the purposes of refining the grains, reducing the porosity of the alloy structure and improving the structure performance of the alloy ingot. Simultaneously, the alloy fabricated by the strong cold casting copper mold well remains the disordered phase structure of liquid metal due to the rapid cooling speed, and thus greatly improving the combination property of the alloy. Furthermore, the fabricating cost is reduced significantly as the mold is simple in structure.
Description
Technical field
Required casting mould when the present invention relates to a kind of vacuum induction melting method and preparing giantmagnetostrictive alloy belongs to the technology of die manufacturing of materials processing engineering field.
Background technology
The melting of metal material is all generally with electric arc melting or induction melting.Electric arc melting need not cast, and need not mould yet, and the material volume of producing is very little, is commonly called as the button ingot.And induction melting must be cast in mould.Traditional mould is all simple red copper mould or water-cooled metal copper mould.Tradition red copper mould structure is simple, and cooling capacity is limited, the alloy bar material coarse microstructure that therefore casts out, poor-performing.Although water-cooled metal copper mould cooling capacity is strong, easily seep water, leak, cause moisture increase in vacuum drying oven, destroy vacuum environment.Water cooling mold causes the vacuum drying oven complex structure simultaneously, makes difficulty, greatly increases equipment cost.
Through By consulting literatures; Feng of Bohai Piston Co., Ltd., Bingzhou City, Shandong Prov. increase build, Wei Zuoshan announced a kind of aluminium piston water cooling mold apparatus with heat-insulation layer; (China; patent of invention; notification number 201832985U) be provided with a water-cooled vestibule in this technology in mould; water-cooled vestibule inwall is equipped with a heat-insulation layer, forms a complete circulation waterway.Thereby improve the density of mold cools down ability and tissue.Structure is comparatively complicated, has improved undoubtedly cost but as a whole.And circulation waterway is very high to the sealing requirements of structure.
Further searching document is found, Shenyang Xinguang Huaxu Casting Co., Ltd. has announced a kind of cylinder cover Metallic Casting Die ﹠ Mold with exhaust structure in refined, Zhu Min, in (China, patent of invention, notification number 201295744Y) this technology, whole mould is comprised of patrix, left and right side form and bed die.Left and right sides mould also is comprised of upper and lower mould respectively, and has the groove of some exhausts on the surface of docking.Therefore the gas in die cavity is got rid of smoothly, effectively eliminated producing the probability of owing to cast.But the cooling effect of this mould is not good, and the compactness that forms foundry goods is inadequate.The combination property of material is difficult to improve.
The preparation metal material technology that analysis-by-synthesis has been announced can be learnt, the shortcoming that existing technology is difficult to overcome below existing:
When adopting traditional cast metal mould, cooling velocity is little, and coarse grains is difficult to improve the combination property of material;
If the employing water cooling mold, mould easily leaks, and causes the destruction of the vacuum environment of vacuum equipment;
Water cooling mold causes the vacuum drying oven complex structure, makes difficulty, greatly increases equipment cost.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of strong cold copper mould of metal casting of built-in metal cooling fluid is provided, can effectively increase considerably the crystallization cooling velocity of alloy cast ingot, thereby reach crystal grain thinning, reduce alloy structure loose, improve the purpose of alloy cast ingot structure property.
The structure that copper mould is made in a kind of strong chill casting for preparing the giantmagnetostrictive alloy disk of the present invention comprises end cap, bed die; The bed die outer ring is provided with annular groove, and the built-in cooling fluid of groove, cooling fluid are the Ga-In-Sn alloy; The bed die inner ring is the casting die cavity, and the die cavity height is 5 ~ 10mm; The bottom centre of bed die is with being communicated with steam vent; End cap is stuck on bed die, and end cap is replaceable, to realize the cooling of two kinds of casting modes, i.e. the casting of crucible casting and quartz ampoule; The material of end cap is stainless steel, and the material of bed die is red copper.
The invention has the beneficial effects as follows: the present invention adopts the strong refrigeration technique of the metal casting of built-in metal cooling fluid, because the capacity of heat transmission of this molten metal is more a lot of soon than water-cooled cooling speed, the alloy of this method preparation is because cooling velocity is fast, make alloy more keep the unordered phase structure of liquid metal, significantly put forward heavy alloyed combination property.
Compared with the prior art, the prepared alloy grain of the present invention is tiny, and homogeneous chemical composition and casting character significantly improve.Can select two kinds of different end caps to realize the casting of different modes.Has stronger specific aim.Not only can crystal grain thinning, and the size that can make crystal grain is evenly, significantly improves the combination property of alloy.
Description of drawings
Fig. 1 is the structural front view when adopting the quartz ampoule casting in the present invention;
Fig. 2 is the structure top view when adopting the quartz ampoule casting in the present invention;
Wherein: 1. end cap 2. cooling fluid 3. bed dies that gate diameter is little and thin;
Fig. 3 is the structural front view when adopting the crucible casting in the present invention;
Fig. 4 is the structure top view when adopting the crucible casting in the present invention;
Wherein: 1. end cap 2. cooling fluid 3. bed dies that gate diameter is large and thick;
Fig. 5 is the bed die size front view in the present invention;
Fig. 6 is the bed die size top view in the present invention;
Wherein: Φ A is target diameter of phi B=Φ A+10mm
ΦC=ΦB+40mm ΦD=ΦC+10mm
ΦE=1~2mm l=5~10mm L=l+（6~8）mm ；
Fig. 7 is the size front view of the end cap that in the present invention, gate diameter is little and thin;
Fig. 8 is the size top view of the end cap that in the present invention, gate diameter is little and thin;
Wherein: Φ F=Φ G+2 ~ 3mm Φ G=Φ D+(1 ~ 2) mm
ΦH=(20~25)mm t=（5~10）mm T=t+（2~3）mm ；
Fig. 9 is the size front view of the end cap that in the present invention, gate diameter is large and thick;
Figure 10 is the size top view of the end cap that in the present invention, gate diameter is large and thick;
Wherein: Φ H=(20 ~ 25) mm Φ F=Φ G+2 ~ 3mm
ΦG=ΦD +(1~2)mm ΦI=ΦH+（15~20）mm
t=（15~20）mm T=t+（2~3）mm 。
The specific embodiment
Wherein 5-10 is the concrete size schematic diagram that the relevant parts of copper mould are made in a kind of strong chill casting for preparing the giantmagnetostrictive alloy disk of the present invention.
Below in conjunction with accompanying drawing, the embodiment of the present invention is elaborated:
In Fig. 1-4, the strong cold copper mould of a kind of metal casting of built-in metal cooling fluid is comprised of end cap 1, cooling fluid 2 and bed die 3.Bed die 3 outer rings are provided with annular groove, can put cooling fluid 2 in groove.Cooling fluid 2 in groove is the Ga-In-Sn alloy, is in a liquid state under normal temperature, has stronger cooling capacity.End cap 1 is separable with bed die 3, and end cap 1 is replaceable.Change end cap 1 and just can realize the cooling of two kinds of casting modes, the casting of crucible casting and quartz ampoule.The material of end cap 1 is stainless steel, and the material of bed die 3 is red copper.Bed die 3 inner rings are the casting die cavity, and the bottom is with steam vent.The die cavity height is about 8mm.
During work, molten metal is entered in bed die 3 by end cap 1, and bed die 3 outer rings are provided with annular groove, and groove is built-in with cooling fluid 2.Cooling fluid 2 is the Ga-In-Sn alloy, is in a liquid state under normal temperature, has stronger cooling capacity.Thereby have larger thermograde, and being easy to the heat of molten metal is passed in cooling fluid 2, molten metal obtains rapidly cooling.Select when casting with crucible gate diameter greatly, thicker end cap, select little, the thinner end cap of gate diameter when casting with quartz ampoule, conveniently realize the casting of dual mode.The steam vent of bed die bottom also greatly reduces the casting rate of owing of metal.Not only refinement crystal grain, and the casting mold that obtains is complete, qualification rate is high.
Claims (1)
1. copper mould is made in a strong chill casting for preparing the giantmagnetostrictive alloy disk, and it is characterized in that: described mould structure comprises end cap, bed die;
The bed die outer ring is provided with annular groove, and the built-in cooling fluid of groove, cooling fluid are the Ga-In-Sn alloy; The bed die inner ring is the casting die cavity, and the die cavity height is 5 ~ 10mm; The bottom centre of bed die is with being communicated with steam vent;
End cap is stuck on bed die, and end cap is replaceable, to realize the cooling of two kinds of casting modes, i.e. the casting of crucible casting and quartz ampoule;
The material of end cap is stainless steel, and the material of bed die is red copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101021481A CN103143679A (en) | 2013-03-28 | 2013-03-28 | Strong cold casting copper mold for fabricating giant magnetostictive alloy disc |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101021481A CN103143679A (en) | 2013-03-28 | 2013-03-28 | Strong cold casting copper mold for fabricating giant magnetostictive alloy disc |
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| CN103143679A true CN103143679A (en) | 2013-06-12 |
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| CN2013101021481A Pending CN103143679A (en) | 2013-03-28 | 2013-03-28 | Strong cold casting copper mold for fabricating giant magnetostictive alloy disc |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014767A (en) * | 2014-06-05 | 2014-09-03 | 贵研铂业股份有限公司 | Method for preparing NiV alloy target |
| CN106493303A (en) * | 2016-10-26 | 2017-03-15 | 兰州理工大学 | Prepare water-degradable aluminium alloy bimetallic water cooling casting mould |
| CN108687314A (en) * | 2018-05-02 | 2018-10-23 | 西安理工大学 | A kind of electric arc melting droplet casting water cooling assembling die |
| CN110218934A (en) * | 2019-07-26 | 2019-09-10 | 南昌工程学院 | A kind of Fe-Ga-Ce-B alloy bar material and preparation method thereof and a kind of cooling copper mould |
| CN114406215A (en) * | 2021-12-15 | 2022-04-29 | 钢铁研究总院 | Vacuum rapid quenching cooling system for forced cooling by liquid metal |
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| WO2010111384A2 (en) * | 2009-03-27 | 2010-09-30 | Titanium Metals Corporation | Method and apparatus for semi-continuous casting of hollow ingots and products resulting therefrom |
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| CN2513700Y (en) * | 2001-12-05 | 2002-10-02 | 湛江市赛尔科技开发有限公司 | Columnar copper-chromium alloy directional crystal casting mould |
| CN201147823Y (en) * | 2008-02-01 | 2008-11-12 | 赖福全 | Die without riser for casting grinding roller casting of flour mill |
| CN201295744Y (en) * | 2009-03-17 | 2009-08-26 | 沈阳新光华旭铸造有限公司 | Cylinder cover metal casting mould with exhausting structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104014767A (en) * | 2014-06-05 | 2014-09-03 | 贵研铂业股份有限公司 | Method for preparing NiV alloy target |
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| CN106493303A (en) * | 2016-10-26 | 2017-03-15 | 兰州理工大学 | Prepare water-degradable aluminium alloy bimetallic water cooling casting mould |
| CN108687314A (en) * | 2018-05-02 | 2018-10-23 | 西安理工大学 | A kind of electric arc melting droplet casting water cooling assembling die |
| CN108687314B (en) * | 2018-05-02 | 2020-11-17 | 西安理工大学 | Water-cooling combined die for electric arc melting and drop casting |
| CN110218934A (en) * | 2019-07-26 | 2019-09-10 | 南昌工程学院 | A kind of Fe-Ga-Ce-B alloy bar material and preparation method thereof and a kind of cooling copper mould |
| CN110218934B (en) * | 2019-07-26 | 2020-06-09 | 南昌工程学院 | Fe-Ga-Ce-B alloy bar and preparation method thereof and cooling copper die |
| CN114406215A (en) * | 2021-12-15 | 2022-04-29 | 钢铁研究总院 | Vacuum rapid quenching cooling system for forced cooling by liquid metal |
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Application publication date: 20130612 |