CN202951865U - Copper die for preparing bulk amorphous alloy - Google Patents
Copper die for preparing bulk amorphous alloy Download PDFInfo
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- CN202951865U CN202951865U CN 201220701609 CN201220701609U CN202951865U CN 202951865 U CN202951865 U CN 202951865U CN 201220701609 CN201220701609 CN 201220701609 CN 201220701609 U CN201220701609 U CN 201220701609U CN 202951865 U CN202951865 U CN 202951865U
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- copper mold
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Abstract
The utility model provides a copper die for preparing a bulk amorphous alloy. The copper die comprises a smelting concave cavity, a suction casting opening, a copper die and a cavity, wherein one end of the copper die is provided with the smelting concave cavity; the smelting concave cavity is provided with the suction casting opening; and the cavity is arranged at the geometric center of the copper die. The suction casting opening is arranged at the end part of the smelting concave cavity. When a traditional copper die vacuum suction casting method is used for preparing the bulk amorphous alloy, a fused alloy can writhe and roll in the smelting concave cavity at the upper end part of a water cooling copper die; in a suction casting process, the top of the suction casting opening is connected with the bottom of the smelting concave cavity so that protective gas in a furnace is rapidly extruded into the copper die cavity in a suction casting process along the top of the alloy under the tendency of negative pressure, the alloy formed by suction casting is hollow, and the uniformity and the density are poor; and the bottom of the smelting concave cavity is reserved with a volcanic-vent-shaped suction casting opening, namely a suction tube is inserted into the fused alloy; in the suction casting process, the tension around the alloy is uniform and the alloy is prior to the protective gas to fill the copper die cavity; and the amorphous alloy formed by the suction casting is uniform and dense and no hollow phenomenon appears.
Description
Technical field
The utility model is a kind of copper mold for the preparation of bulk amorphous alloys, particularly a kind ofly prevents that vacuum suction casting technique from preparing the copper mold of hollowization of bulk amorphous alloys.Belong to the renovation technique for the preparation of the copper mold of bulk amorphous alloys.
Background technology
Bulk amorphous alloys has good combination property because unique structure causes it, is present material science, Condensed Matter Physics and mechanics field study hotspot, has broad application prospects.At present, form the theoretical huge progress that constantly perfect and Composition Design is obtained, adopt the copper mold vacuum suction casting technique just can prepare most bulk amorphous alloys systems.
Vacuum suction casting technique is to prepare that bulk amorphous alloys is the most frequently used, a kind of method of most convenient.This method has the unique advantage that additive method can not be compared aspect the dystectic bulk amorphous alloys of preparation.Its basic functional principle is: the method fusing foundry alloy that at first utilizes electric arc melting, after the foundry alloy fusing, the suction produced by the draught head between melt chamber and copper mold, liquid foundry alloy is sucked to copper mold, liquid foundry alloy is cooling rapidly under the acting in conjunction of copper mold and outside recirculated cooling water thereof, produce cooldown rate faster, realize the rapid solidification of liquid alloy.For taking full advantage of the effect of the good heat transfer property of copper mold and recirculated cooling water, copper mold and cooling jacket are adopted to thread connection, both are fully contacted, also increased the contact area of copper mold and cooling jacket simultaneously, thereby can improve the cooling velocity of foundry alloy, more be conducive to obtain bulk amorphous alloys.
Yet; when tradition copper mold vacuum suction casting technique prepares bulk amorphous alloys; molten alloy seethes rolling in water cooled copper mould upper end melting cavity; connect melting cavity bottom because inhaling the casting nozzle top while inhaling casting; easily cause the interior protective gas of body of heater to take advantage of a situation under negative pressure and get into fast the copper mold die cavity along the alloy top with inhaling the casting process; often make to inhale the non-crystaline amorphous metal sample cast out and be hollow, and uniformity and compactness all poor.
Summary of the invention
The purpose of this utility model is to consider the problems referred to above and provides a kind of to make that the non-crystaline amorphous metal sample filling effect prepared is good, the alloy even compact, not there will be the copper mold for the preparation of bulk amorphous alloys of hollow phenomenon.
The technical solution of the utility model is: the copper mold for the preparation of bulk amorphous alloys of the present utility model, include the melting cavity, inhale casting nozzle, copper mold, die cavity, wherein an end of copper mold is provided with the melting cavity, and the melting cavity is provided with the suction casting nozzle, and the geometric center of copper mold is provided with die cavity.
Above-mentioned suction casting nozzle is arranged on the end of melting cavity.
Above-mentioned suction casting nozzle is that crateriform is inhaled casting nozzle.
The end of above-mentioned copper mold is provided with screw, and screw communicates with die cavity, is equiped with on screw and prevents from inhaling the screw that the cast alloy melt-flow goes out die cavity.
The utility model copper mold is inhaled casting nozzle at molten alloy with the reserved copper material processing in recessed ball crucible shape melting cavity bottom " volcanic crater " shape on traditional water cooled copper mould basis, this crateriform is inhaled the taper suction inlet that casting nozzle is protrusion, when tradition copper mold vacuum suction casting technique prepares bulk amorphous alloys, molten alloy seethes rolling in water cooled copper mould upper end melting cavity, connect melting cavity bottom because inhaling the casting nozzle top while inhaling casting, easily cause the interior protective gas of body of heater to take advantage of a situation under negative pressure and get into fast the copper mold die cavity along the alloy top with inhaling the casting process, often make to inhale the alloy cast out and be hollow, and uniformity and compactness are poor, inhale casting nozzle in water cooled copper mould melting cavity of the present utility model, as suction pipe, insert molten alloy, even tension around alloy while inhaling casting, alloy has precedence over protective gas and fills the copper mold die cavity, inhales the non-crystaline amorphous metal even compact cast out, and without the hollow phenomenon, occurs.The utility model is that a kind of design is ingenious, function admirable, the convenient and practical copper mold for the preparation of bulk amorphous alloys.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Embodiment:
Structural representation of the present utility model as shown in Figure 1, copper mold for the preparation of bulk amorphous alloys of the present utility model, include melting cavity 1, inhale casting nozzle 2, copper mold 3, die cavity 5, wherein an end of copper mold 3 is provided with melting cavity 1, melting cavity 1 is provided with inhales casting nozzle 2, and the geometric center of copper mold 3 is provided with die cavity 5.
Above-mentioned suction casting nozzle 2 is arranged on the end of melting cavity 1.In the present embodiment, inhale casting nozzle 2 and be arranged on the extreme lower position of end of melting cavity 1.
Above-mentioned suction casting nozzle 2 is inhaled casting nozzle for crateriform.The utility model water cooled copper mould is inhaled casting nozzle 2 at molten alloy with recessed ball crucible shape melting cavity 1 bottom reserved copper material processing " volcanic crater " shape on traditional water cooled copper mould basis, crateriform is inhaled the taper suction inlet that casting nozzle is protrusion, the internal diameter that casting nozzle is inhaled in taper according to copper mold die cavity size at the 1-2mm range changing; When tradition copper mold vacuum suction casting technique prepares bulk amorphous alloys, molten alloy seethes rolling in the melting cavity, connect bottom, melting chamber because inhaling the casting nozzle top while inhaling casting, easily cause the interior protective gas of body of heater to take advantage of a situation under negative pressure and get into fast the copper mold die cavity along the alloy top with inhaling the casting process, often make to inhale the alloy cast out and be hollow, and uniformity and compactness poor; Inhale casting nozzle in water cooled copper mould melting cavity of the present utility model, as suction pipe, insert molten alloy, even tension around alloy while inhaling casting, alloy has precedence over protective gas and fills the copper mold die cavity, can stop the non-crystaline amorphous metal sample hollow of preparation or the defect in cavity.
In the present embodiment, the outside of above-mentioned copper mold 3 is provided with external screw thread 4, and external screw thread 4 is the isosceles trapezoid screw thread.
In the present embodiment, above-mentioned copper mold 3 includes two half block copper molds of full symmetric, and the two ends of two half block copper molds also are respectively equipped with connecting thread 6, and nut 7 is twisted admittedly and on connecting thread 6, two half block copper molds is fixed together.In the present embodiment, above-mentioned nut 7 is cylindric nut.
In addition, the end of above-mentioned copper mold 3 is provided with screw 8, and screw 8 communicates with die cavity 5, is equiped with on screw 8 and prevents from inhaling the screw 9 that the cast alloy melt-flow goes out die cavity 5.
The preparation method of the utility model copper mold, comprise the steps:
1) the red copper cylinder is processed to the outside by non-consumable arc furnace water-cooled copper die cavity size and characteristic threads and be provided with the germule of the copper mold 3 of screw thread 4, and the screw thread 6 that processes copper mold 3 two ends, and the nut 7 that coordinates with screw thread 6 of processing;
2) by the germule of copper mold 3 longitudinally axial line cut into two symmetrical copper molds;
3) with nut 7, two copper molds of symmetry are fixed together, at an end of copper mold 3, process the screw 8 of certain-length along axle center, screw 9 is twisted solid on screw 8; At the other end processing melting cavity 1 of copper mold 3, and make and inhale casting nozzle 2 at the shaft core position of melting cavity (1);
4) fixedly the nut 7 of copper mold 3 is backed out, two copper molds separately, between the end of the end of the set screw 8 of copper mold 3 and set suction casting nozzle 2 along axis direction processing cavity 5;
With nut 7, two copper molds of symmetry are fixed together and get final product while 5) using.
In the present embodiment, above-mentioned copper mold 3 is prepared from by the machined of red copper cylinder.
The utility model specific embodiment is as follows:
Examples of implementation 1:
1. the Al that the Ni that the Cu that the Zr that is 99.8% by purity, purity are 99.5%, purity are 99.98% and purity are 99.5% is by Zr
55Cu
30Ni
5Al
10Nominal composition is prepared burden, and is placed in electric arc furnaces;
2. electric arc furnaces is vacuumized, when reaching 3 * 10
-3Be filled with argon gas to an atmospheric pressure after the vacuum of Pa, under the protection of argon gas, first molten titanium is inhaled residual oxygen, then molten alloy becomes foundry alloy 3 ~ 5 times;
3. according to preparation sample shape, size, calculate required foundry alloy Theoretical Mass, then the foundry alloy fragmentation, the foundry alloy fragment of weighing respective quality, move to the utility model water cooled copper mould upper end recessed ball crucible shape melting cavity by it;
4. start electric arc foundry alloy fragment in the melting cavity is fused into to liquid, close arc power moment, open and inhale the casting valve, utilize pressure differential " volcanic crater " shape in the melting cavity to inhale casting nozzle aluminium alloy is sucked in the die cavity in copper mold;
5. after cooling number minute, take out copper mold, turn on two end nuts, by copper mold two parts separately, take out the various shape Zr of preparation
55Cu
30Ni
5Al
10The bulk amorphous alloys sample; Obtain that non-crystaline amorphous metal sample filling effect is good, the alloy even compact, the hollow phenomenon all do not occur.
Examples of implementation 2:
1. the Fe that is 99.0% by purity, 99.5% Y, Cr, 99.9% Mo, 99.0% graphite and Fe-B intermediate alloy (B is 17.0wt%) are pressed Fe
48Cr
15Mo
14C
15B
6Y
2Nominal composition is prepared burden, and is placed in electric arc furnaces;
2. electric arc furnaces is vacuumized, when reaching 3 * 10
-3Be filled with argon gas to an atmospheric pressure after the vacuum of Pa, under the protection of argon gas, first molten titanium is inhaled residual oxygen, then molten alloy becomes foundry alloy 3 ~ 5 times;
3. according to preparation sample shape, size, calculate required foundry alloy Theoretical Mass, then the foundry alloy fragmentation, the foundry alloy fragment of weighing respective quality, move to the utility model water cooled copper mould upper end recessed ball crucible shape melting cavity by it;
4. start electric arc foundry alloy fragment in the melting cavity is fused into to liquid, close arc power moment, open and inhale the casting valve, utilize pressure differential " volcanic crater " shape in the melting cavity to inhale casting nozzle aluminium alloy is sucked in the die cavity in copper mold;
5. after cooling number minute, take out copper mold, turn on two end nuts, by copper mold two parts separately, take out the various shape Fe of preparation
48Cr
15Mo
14C
15B
6Y
2The bulk amorphous alloys sample; Obtain that non-crystaline amorphous metal sample filling effect is good, the alloy even compact, the hollow phenomenon all do not occur.
Examples of implementation 3:
1. the Cu that is 99.5% by purity, 99.8% Zr, 99.0% Ti, 99.9% the raw materials such as Mo, press Cu
58Zr
30Ti
10Mo
2Nominal composition is prepared burden, and is placed in electric arc furnaces;
2. electric arc furnaces is vacuumized, when reaching 3 * 10
-3Be filled with argon gas to an atmospheric pressure after the vacuum of Pa, under the protection of argon gas, first molten titanium is inhaled residual oxygen, then molten alloy becomes foundry alloy 3 ~ 5 times;
3. according to preparation sample shape, size, calculate required foundry alloy Theoretical Mass, then the foundry alloy fragmentation, the foundry alloy fragment of weighing respective quality, move to the utility model water cooled copper mould upper end recessed ball crucible shape melting cavity by it;
4. start electric arc foundry alloy fragment in the melting cavity is fused into to liquid, close arc power moment, open and inhale the casting valve, utilize pressure differential " volcanic crater " shape in the melting cavity to inhale casting nozzle aluminium alloy is sucked in the die cavity in copper mold;
5. after cooling number minute, take out copper mold, turn on two end nuts, by copper mold two parts separately, take out the various shape Cu of preparation
58Zr
30Ti
10Mo
2The bulk amorphous alloys sample; Obtain that non-crystaline amorphous metal sample filling effect is good, the alloy even compact, the hollow phenomenon all do not occur.
Claims (8)
1. the copper mold for the preparation of bulk amorphous alloys, it is characterized in that including melting cavity (1), inhale casting nozzle (2), copper mold (3), die cavity (5), wherein an end of copper mold (3) is provided with melting cavity (1), melting cavity (1) is provided with inhales casting nozzle (2), and the geometric center of copper mold (3) is provided with die cavity (5).
2. the copper mold for the preparation of bulk amorphous alloys according to claim 1, is characterized in that above-mentioned suction casting nozzle (2) is arranged on the end of melting cavity (1).
3. the copper mold for the preparation of bulk amorphous alloys according to claim 1, is characterized in that above-mentioned suction casting nozzle (2) is for crateriform suction casting nozzle.
4. the copper mold for the preparation of bulk amorphous alloys according to claim 3, is characterized in that above-mentioned crateriform suction casting nozzle is the taper suction inlet of protrusion.
5. the copper mold for the preparation of bulk amorphous alloys according to claim 1, is characterized in that the outside of above-mentioned copper mold (3) is provided with external screw thread (4), and external screw thread (4) is the isosceles trapezoid screw thread.
6. according to the described copper mold for the preparation of bulk amorphous alloys of claim 1 to 5 any one, it is characterized in that above-mentioned copper mold (3) includes two half block copper molds of full symmetric, the two ends of two half block copper molds also are respectively equipped with connecting thread (6), and nut (7) is twisted admittedly and above two half block copper molds is fixed together at connecting thread (6).
7. the copper mold for the preparation of bulk amorphous alloys according to claim 6, is characterized in that above-mentioned nut (7) is cylindric nut.
8. the copper mold for the preparation of bulk amorphous alloys according to claim 6, the end that it is characterized in that above-mentioned copper mold (3) is provided with screw (8), screw (8) communicates with die cavity (5), is equiped with on screw (8) and prevents from inhaling the screw (9) that the cast alloy melt-flow goes out die cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220701609 CN202951865U (en) | 2012-12-18 | 2012-12-18 | Copper die for preparing bulk amorphous alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220701609 CN202951865U (en) | 2012-12-18 | 2012-12-18 | Copper die for preparing bulk amorphous alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202951865U true CN202951865U (en) | 2013-05-29 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220701609 Expired - Fee Related CN202951865U (en) | 2012-12-18 | 2012-12-18 | Copper die for preparing bulk amorphous alloy |
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| CN (1) | CN202951865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008614A (en) * | 2012-12-18 | 2013-04-03 | 广东工业大学 | Copper mould for preparing bulk amorphous alloy and manufacture method of copper mould |
-
2012
- 2012-12-18 CN CN 201220701609 patent/CN202951865U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008614A (en) * | 2012-12-18 | 2013-04-03 | 广东工业大学 | Copper mould for preparing bulk amorphous alloy and manufacture method of copper mould |
| CN103008614B (en) * | 2012-12-18 | 2015-11-18 | 广东工业大学 | A kind of for the preparation of the copper mold of bulk amorphous alloys and the preparation method of copper mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20131218 |