CN216938343U - Combined type guide rod device capable of regulating and controlling orientation of high-purity copper single crystal - Google Patents
Combined type guide rod device capable of regulating and controlling orientation of high-purity copper single crystal Download PDFInfo
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- CN216938343U CN216938343U CN202220562676.XU CN202220562676U CN216938343U CN 216938343 U CN216938343 U CN 216938343U CN 202220562676 U CN202220562676 U CN 202220562676U CN 216938343 U CN216938343 U CN 216938343U
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Abstract
A combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal comprises a single crystal dummy ingot head, a connecting head and a traction rod; the bottom end of the single crystal dummy bar head is connected with the top end of the connecting head, and the single crystal dummy bar head and the connecting head adopt a detachable connecting structure; the bottom end of the coupling head is connected with the top end of the traction rod, and the coupling head and the traction rod adopt a detachable connection structure; the normal direction of the contact surface of the single crystal dummy ingot head and the liquid metal copper is used as the single crystal orientation, and the single crystal orientation is regulated and controlled by adjusting the normal direction of the contact surface of the single crystal dummy ingot head and the liquid metal copper. The utility model is used for replacing the traditional single conventional dummy bar, and realizes the regulation and control of the orientation of the high-purity copper single crystal through the single crystal dummy bar head; the whole guide rod device adopts a combined structure, has the characteristics of simple structure and convenient disassembly, and can be repeatedly used by only replacing the single crystal dummy bar head with the corresponding single crystal orientation before manufacturing the single crystal copper rod with the specific single crystal orientation each time, so that the production cost of the single crystal copper rod is saved.
Description
Technical Field
The utility model belongs to the technical field of down-leading continuous casting production, and particularly relates to a combined type leading rod device capable of regulating and controlling the orientation of a high-purity copper single crystal.
Background
The single crystal copper has great development potential as a metal single crystal material with excellent performance and wide application. The single crystal copper eliminates the crystal boundary serving as a resistance production source and a signal attenuation source, so that the single crystal copper has excellent wire performance and signal transmission performance, also has good plastic processing performance, excellent corrosion resistance and obvious fatigue resistance, also effectively reduces casting defects of materials such as segregation, pores, shrinkage cavities, impurity pressing and the like, has bright surface quality, and is widely applied to the fields of national defense high technology, civil electronics, communication, networks and the like.
Currently, the preparation of single crystal copper is mainly a hot type continuous casting method, also called a continuous directional solidification method, and specifically includes an up-casting method, a horizontal continuous casting method and a down-casting method, wherein the down-casting method has the best performance and the greatest contribution to the aspects of the purity of a casting, the regularity of the shape of the casting, the uniformity of a solidification structure and the like, so the down-casting method is most commonly used, and the research on single crystal copper at the present stage mainly focuses on single crystal copper rods required for wire drawing, and the diameter of the single crystal copper rods is mostly 3 mm-8 mm.
The single crystal copper rod manufactured by the down-draw continuous casting method has the advantages that each crystal can extend more than hundreds of meters, namely, only one crystal grain in the length direction exists, so that the crystal grain interface does not exist, during signal transmission, the crystal grain boundary between the crystal grains is not needed to be penetrated, signals are easier to penetrate and conduct, the loss is extremely low, and the physical performance of the single crystal copper rod is close to that of silver.
However, in the case of the single crystal copper rod manufactured by the down-draw casting method, the continuous casting apparatus obtains a single crystal structure mainly by reducing the speed of the drawing rod and relying on the competitive growth of crystal grains at the early stage of solidification during the continuous casting, so that it is impossible to specifically control the orientation of the single crystal, and it is impossible to manufacture the single crystal copper rod having a fixed orientation of the single crystal.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal, which is used for replacing the traditional monomer type conventional guide rod, and realizes the regulation and control of the orientation of the high-purity copper single crystal through a single crystal guide rod head, so that the manufacture of the single crystal copper rod with fixed single crystal orientation becomes possible; the whole guide rod device adopts a combined structure, has the characteristics of simple structure and convenient disassembly, and can be repeatedly used by only replacing the single crystal dummy bar head with the corresponding single crystal orientation before manufacturing the single crystal copper rod with the specific single crystal orientation each time, so that the production cost of the single crystal copper rod is effectively saved.
In order to achieve the purpose, the utility model adopts the following technical scheme: a combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal comprises a single crystal dummy ingot head, a connecting head and a draw bar; the bottom end of the single crystal dummy ingot head is connected with the top end of the coupling head, and the single crystal dummy ingot head and the coupling head adopt a detachable connection structure; the bottom end of the coupling head is connected with the top end of the traction rod, and the coupling head and the traction rod adopt a detachable connection structure.
The normal direction of the contact surface of the single crystal dummy ingot head and the liquid metal copper is used as the single crystal orientation, and the single crystal orientation is regulated and controlled by adjusting the normal direction of the contact surface of the single crystal dummy ingot head and the liquid metal copper.
The bottom end of the single crystal dummy bar head is provided with a plugging convex block, the top end of the coupling head is provided with a plugging groove, and the plugging convex block is plugged and matched with the plugging groove.
The cross-sectional shapes of the plugging convex blocks and the plugging grooves are trapezoidal.
The bottom end of the coupling head is provided with a switching stud, the top end of the traction rod is provided with a switching screw hole, and the switching stud is in threaded connection and matching with the switching screw hole.
The axial length of the single crystal dummy ingot head is 15 mm-20 mm, and the diameter of the single crystal dummy ingot head is 3 mm-8 mm.
The axial length of the coupling head is 15 mm-20 mm, and the diameter of the coupling head is 3 mm-8 mm.
The width of the upper bottom of the trapezoidal section of the plugging lug and the plugging groove is 2 mm-5 mm, the width of the lower bottom of the trapezoidal section of the plugging lug and the plugging groove is 2.5 mm-6 mm, and the height of the trapezoidal section of the plugging lug and the plugging groove is 2 mm-5 mm.
The outer diameter of the switching stud and the inner diameter of the switching screw hole are both 2 mm-5 mm, and the axial length of the switching stud and the axial depth of the switching screw hole are both 5 mm-10 mm.
The single crystal dummy ingot head is made of magnesium oxide seed crystals, the connecting head is made of high-purity graphite, and the draw bar is made of pure copper.
The utility model has the beneficial effects that:
the combined type guide rod device capable of regulating and controlling the orientation of the high-purity copper single crystal is used for replacing the traditional single conventional guide rod, and the orientation of the high-purity copper single crystal is regulated and controlled through the single crystal guide rod head, so that the manufacture of the single crystal copper rod with fixed single crystal orientation becomes possible; the whole guide rod device adopts a combined structure, has the characteristics of simple structure and convenient disassembly, and can be repeatedly used by only replacing the single crystal dummy bar head with the corresponding single crystal orientation before manufacturing the single crystal copper rod with the specific single crystal orientation each time, so that the production cost of the single crystal copper rod is effectively saved.
Drawings
FIG. 1 is a schematic structural diagram of a combined type guiding rod device capable of regulating and controlling the orientation of a high-purity copper single crystal according to the utility model;
FIG. 2 is a schematic view of the structure of a single crystal dummy head according to the present invention;
FIG. 3 is a schematic structural view of a coupling head of the present invention;
fig. 4 is a schematic structural view of a drawbar according to the present invention;
in the figure, 1 is a single crystal dummy head, 2 is a coupling head, 3 is a draw bar, 4 is a connecting lug, 5 is a connecting groove, 6 is a connecting stud and 7 is a connecting screw hole.
Detailed Description
The utility model is described in further detail below with reference to the figures and the specific embodiments.
As shown in FIGS. 1 to 4, a combined type pull rod device capable of regulating and controlling the orientation of a high-purity copper single crystal comprises a single crystal dummy bar head 1, a coupling head 2 and a pull rod 3; the bottom end of the single crystal dummy bar head 1 is connected with the top end of the coupling head 2, and the single crystal dummy bar head 1 and the coupling head 2 adopt a detachable connection structure; the bottom end of the coupling head 2 is connected with the top end of the traction rod 3, and the coupling head 2 and the traction rod 3 adopt a detachable connection structure.
The normal direction of the contact surface of the single crystal dummy ingot head 1 and the liquid metal copper is used as the single crystal orientation, and the single crystal orientation is regulated and controlled by adjusting the normal direction of the contact surface of the single crystal dummy ingot head 1 and the liquid metal copper.
The bottom end of the single crystal dummy bar head 1 is provided with a plugging convex block 4, the top end of the coupling head 2 is provided with a plugging groove 5, and the plugging convex block 4 is plugged and matched with the plugging groove 5.
The cross-sectional shapes of the plugging convex block 4 and the plugging groove 5 are trapezoids.
The bottom end of the coupling head 2 is provided with a switching stud 6, the top end of the traction rod 3 is provided with a switching screw hole 7, and the switching stud 6 is in threaded connection fit with the switching screw hole 7.
The single crystal dummy ingot head 1 is made of magnesium oxide seed crystals, the connecting head 2 is made of high-purity graphite, and the draw bar 3 is made of pure copper.
Example one
The axial length of the single crystal dummy bar head 1 is 15mm, and the diameter of the single crystal dummy bar head 1 is 5 mm.
The axial length of the coupling head 2 is 15mm and the diameter of the coupling head 2 is 5 mm.
The width of the upper bottom of the trapezoidal section of the plugging convex block 4 and the plugging groove 5 is 3mm, the width of the lower bottom of the trapezoidal section of the plugging convex block 4 and the plugging groove 5 is 4mm, and the height of the trapezoidal section of the plugging convex block 4 and the plugging groove 5 is 4 mm.
The outer diameter of the adapter stud 6 and the inner diameter of the adapter screw hole 7 are both 3mm, and the axial length of the adapter stud 6 and the axial depth of the adapter screw hole 7 are both 7 mm.
Example two
The axial length of the single crystal dummy bar head 1 is 20mm, and the diameter of the single crystal dummy bar head 1 is 8 mm.
The axial length of the coupling head 2 is 20mm, and the diameter of the coupling head 2 is 8 mm.
The width of the upper bottom of the trapezoidal section of the plugging convex block 4 and the plugging groove 5 is 5mm, the width of the lower bottom of the trapezoidal section of the plugging convex block 4 and the plugging groove 5 is 6mm, and the height of the trapezoidal section of the plugging convex block 4 and the plugging groove 5 is 5 mm.
The outer diameter of the adapter stud 6 and the inner diameter of the adapter screw hole 7 are both 5mm, and the axial length of the adapter stud 6 and the axial depth of the adapter screw hole 7 are both 10 mm.
The one-time use process of the present invention is described below with reference to the accompanying drawings:
according to the set single crystal orientation, a corresponding single crystal dummy bar head 1 is selected, the upper surface of the single crystal dummy bar head 1 is used as a contact surface of liquid metal copper, and the normal direction of the single crystal dummy bar head 1 is consistent with the set single crystal orientation.
The selected single crystal dummy bar head 1 is connected with the connecting head 2, and particularly, the plugging convex block 4 at the bottom end of the single crystal dummy bar head 1 is accurately inserted into the plugging groove 5 at the top end of the connecting head 2, so that the connected single crystal dummy bar head 1 and the connecting head 2 are ensured to keep a coaxial state.
After the single crystal ingot head 1 is connected with the coupling head 2, the coupling head 2 is connected with the traction rod 3, and particularly, the adapter stud 6 at the bottom end of the coupling head 2 is screwed into the adapter screw hole 7 at the top end of the traction rod 3 until the coupling head 2 is screwed tightly, so that the coupling head 2 is firmly connected with the traction rod 3.
After the single crystal dummy bar head 1, the coupling head 2 and the draw bar 3 are assembled, the single crystal dummy bar head is assembled into a crystallizer of a down-drawing continuous casting device, and after the down-drawing continuous casting device is debugged, the down-drawing continuous casting operation can be started,
in the drawing process of the down-drawing continuous casting, liquid metal copper is contacted with the upper surface of the single crystal dummy bar head 1, the temperature of the single crystal dummy bar head 1 is close to that of the liquid metal copper, a solid-liquid interface is formed between the liquid metal copper and the single crystal dummy bar head 1, the temperature of the liquid metal copper connected with the single crystal dummy bar head 1 is reduced along with the gradual descending of the single crystal dummy bar head 1, so that the contact growth is realized, and a single crystal copper rod with fixed single crystal orientation is formed under the control of the single crystal dummy bar head 1.
In the next down-drawing continuous casting operation, the change of the single crystal orientation can be realized only by replacing the single crystal dummy head 1, so that the single crystal copper rod with the set single crystal orientation is manufactured.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. A combined type guide rod device capable of regulating and controlling high-purity copper single crystal orientation is characterized in that: comprises a single crystal dummy ingot head, a coupling head and a draw bar; the bottom end of the single crystal dummy ingot head is connected with the top end of the coupling head, and the single crystal dummy ingot head and the coupling head adopt a detachable connection structure; the bottom end of the coupling head is connected with the top end of the traction rod, and the coupling head and the traction rod adopt a detachable connection structure.
2. The combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal according to claim 1, wherein: the normal direction of the contact surface of the single crystal dummy ingot head and the liquid metal copper is used as the single crystal orientation, and the single crystal orientation is regulated and controlled by adjusting the normal direction of the contact surface of the single crystal dummy ingot head and the liquid metal copper.
3. The combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal according to claim 1, wherein: the bottom end of the single crystal dummy bar head is provided with a plugging convex block, the top end of the coupling head is provided with a plugging groove, and the plugging convex block is plugged and matched with the plugging groove.
4. The combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal according to claim 3, wherein: the cross-sectional shapes of the plugging convex blocks and the plugging grooves are trapezoidal.
5. The combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal according to claim 1, wherein: the bottom end of the coupling head is provided with a switching stud, the top end of the traction rod is provided with a switching screw hole, and the switching stud is in threaded connection and matching with the switching screw hole.
6. The combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal according to claim 1, wherein: the axial length of the single crystal dummy ingot head is 15 mm-20 mm, and the diameter of the single crystal dummy ingot head is 3 mm-8 mm.
7. The combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal according to claim 1, wherein: the axial length of the coupling head is 15 mm-20 mm, and the diameter of the coupling head is 3 mm-8 mm.
8. The combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal according to claim 3, wherein: the width of the upper bottom of the trapezoidal section of the plugging lug and the plugging groove is 2 mm-5 mm, the width of the lower bottom of the trapezoidal section of the plugging lug and the plugging groove is 2.5 mm-6 mm, and the height of the trapezoidal section of the plugging lug and the plugging groove is 2 mm-5 mm.
9. The combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal according to claim 5, wherein: the outer diameter of the switching stud and the inner diameter of the switching screw hole are both 2 mm-5 mm, and the axial length of the switching stud and the axial depth of the switching screw hole are both 5 mm-10 mm.
10. The combined type guide rod device capable of regulating and controlling the orientation of a high-purity copper single crystal according to claim 1, wherein: the single crystal dummy ingot head is made of magnesium oxide seed crystals, the connecting head is made of high-purity graphite, and the draw bar is made of pure copper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220562676.XU CN216938343U (en) | 2022-03-15 | 2022-03-15 | Combined type guide rod device capable of regulating and controlling orientation of high-purity copper single crystal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220562676.XU CN216938343U (en) | 2022-03-15 | 2022-03-15 | Combined type guide rod device capable of regulating and controlling orientation of high-purity copper single crystal |
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| CN216938343U true CN216938343U (en) | 2022-07-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415488A (en) * | 2022-07-27 | 2022-12-02 | 上海交通大学 | Horizontal continuous casting preparation process for ultra-high quality single crystal copper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415488A (en) * | 2022-07-27 | 2022-12-02 | 上海交通大学 | Horizontal continuous casting preparation process for ultra-high quality single crystal copper |
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