CN211990855U - Continuous casting device for producing high-purity single crystal copper rod by continuous feeding - Google Patents
Continuous casting device for producing high-purity single crystal copper rod by continuous feeding Download PDFInfo
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- CN211990855U CN211990855U CN202020313701.1U CN202020313701U CN211990855U CN 211990855 U CN211990855 U CN 211990855U CN 202020313701 U CN202020313701 U CN 202020313701U CN 211990855 U CN211990855 U CN 211990855U
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Abstract
The utility model relates to a continuous casting device for producing high-purity single crystal copper rods by continuous feeding, which comprises a vacuum furnace cover, a vacuum smelting furnace, a smelting crucible, a vacuum gate valve, a heat-preservation continuous casting pot, a continuous casting crucible, a crystallizer, a cooling water jacket and a traction winding mechanism, wherein the vacuum smelting furnace is communicated with the inlet end of the heat-preservation continuous casting pot through the vacuum gate valve, and the outlet end of the heat-preservation continuous casting pot is connected with the cooling water jacket and the traction winding mechanism through a sealing piece; after the raw material copper plate is melted in the melting crucible, protective gas is introduced, the vacuum gate valve is opened, the tilting melting pincer pot pours the copper liquid into the continuous casting crucible, the liquid level of the copper liquid in the continuous casting crucible is kept stable, and the traction winding mechanism continuously and stably pulls to produce the single crystal copper rod. The utility model realizes the purposes of reasonable and feasible method, ingenious design, stable and continuous production of high-purity single crystal copper rods, reliable performance, reduction of production cost and improvement of production efficiency.
Description
Technical Field
The utility model relates to a high-purity metal continuous casting production facility technical field, concretely relates to continuous casting device of high-purity single crystal copper pole of continuous feed production.
Background
At present, the single crystal copper rod production in China mostly adopts atmosphere protection melting and atmosphere protection continuous casting production, although the atmosphere protection melting, the atmosphere protection continuous casting method can continuously produce the single crystal copper rod, the high-quality and high-purity single crystal copper rod cannot be produced, and the product quality cannot reach the high-purity standards of 5N and 6N. And continuous casting is carried out after protective gas is filled after vacuum melting is adopted, the product quality can reach the high-purity standards of 5N and 6N, but continuous feeding cannot be carried out, the single crystal copper rod is continuously produced, only intermittent production can be carried out, and the efficiency is low.
At present, most factories need hot continuous casting in the production of single crystal copper rods, qualified single crystal copper rods can be produced only by forming single crystals at a very slow traction speed, the diameter of the copper rods is generally 6mm and 8mm, the traction speed is only 10-30 mm/min, the yield is very small, and if a vacuum melting process is adopted, the product quality can be improved. However, in the production capacity, the furnace door can be vacuumized to melt after the guide rod is fed and taken out, and can be pulled after the furnace door is closed at a constant temperature, so that the production capacity is only about half of the capacity of continuous production, and intermittent production causes that about one meter of single crystal copper grains which are just pulled out are unqualified and cannot be used, thereby causing waste and increasing the production cost.
The problem to be solved at present is how to design a continuous casting device for continuously producing high-purity single crystal copper rods, which has the advantages of reasonable and feasible method, ingenious design, stable and continuous production of high-purity single crystal copper rods, reliable performance, reduction of production cost and improvement of production efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems that most of the prior factories need to adopt hot continuous casting in the production of single crystal copper rods, the qualified single crystal copper rods can be produced only by forming single crystals at a very slow traction speed, the diameter of the common copper rods is 6mm and 8mm, the traction speed is only 10-30 mm/min, the yield is very small, a vacuum melting process is adopted, the production capacity can be vacuumized for melting only by closing a furnace door due to feeding and taking out a guide rod, the traction can be carried out only after the constant temperature, the production capacity only has about half of the continuous production capacity, and the intermittent production causes that about one meter of single crystal copper crystal grains which are just pulled out are unqualified and unusable, the waste is caused, the production cost is increased, the product quality and the enterprise production benefit are influenced, the utility model provides a continuous casting device for continuously feeding and producing high-purity single crystal copper rods, the realization method is reasonable and feasible, the design is ingenious, the high-purity single crystal copper rod can be stably, continuously and uninterruptedly produced, the performance is reliable, the production cost is reduced, and the production efficiency is improved.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: a continuous casting device for producing high-purity single crystal copper rods by continuous feeding comprises a vacuum furnace cover, a vacuum smelting furnace, a smelting crucible, a vacuum gate valve, a heat-preservation continuous casting pot, a continuous casting crucible, a crystallizer, a cooling water jacket and a traction winding mechanism, wherein the vacuum smelting furnace is communicated with the inlet end of the heat-preservation continuous casting pot through the vacuum gate valve, and the outlet end of the heat-preservation continuous casting pot is connected with the cooling water jacket and the traction winding mechanism through a sealing piece; after the raw material copper plate is melted in the melting crucible, introducing protective gas, opening a vacuum gate valve, tilting a melting pincer pot to pour molten copper into the continuous casting crucible, keeping the molten copper level in the continuous casting crucible stable, and continuously and stably drawing and producing a single crystal copper rod by a drawing and winding mechanism; the smelting crucible is positioned in the vacuum smelting furnace, and a medium-frequency induction heating coil is arranged outside the smelting crucible to stir and heat the copper plate in the smelting crucible; a liquid passing groove is arranged right below the smelting crucible, the tail end of the liquid passing groove is connected with the continuous casting crucible, and the copper liquid flows into the continuous casting crucible through the liquid passing groove; a feeding bin for adding copper materials is arranged above the vacuum furnace cover and over against the smelting crucible.
The device is characterized in that a liquid level adjusting press hammer is arranged in the continuous casting crucible, a liquid level probe is arranged at the lower end of the liquid level adjusting press hammer, a PLC (programmable logic controller) is arranged at the upper end of the liquid level adjusting press hammer, and the liquid level adjusting press hammer is controlled to lift through the PLC to keep the liquid level of copper liquid in the continuous casting crucible stable.
The protective gas introduced into the smelting crucible is argon or nitrogen.
Heaters for maintaining the state of copper liquid are arranged outside the liquid passing groove, the continuous casting crucible and the crystallizer.
The traction winding mechanism comprises an upper group of rollers and a lower group of rollers which oppositely wind to continuously pull out the single crystal copper rod.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the utility model adopts the medium-frequency induction vacuum smelting furnace to be communicated with the single crystal copper heat-preservation continuous casting furnace through the vacuum gate valve, the heat-preservation continuous casting furnace is connected with the cooling water jacket through the sealing element, the traction winding mechanism is connected, the requirement of continuously producing the high-purity single crystal copper rod can stably and continuously produce the high-purity single crystal copper rod which is infinitely long in theory, the method is reasonable and feasible, the design is ingenious, the performance is reliable, and the production cost is reduced;
2) the smelting crucible is positioned in the vacuum smelting furnace, and a medium-frequency induction heating coil is arranged outside the smelting crucible to stir and heat the copper plate in the smelting crucible;
3) a liquid passing groove is arranged right below the smelting crucible, the tail end of the liquid passing groove is connected with the continuous casting crucible, and the copper liquid flows into the continuous casting crucible through the liquid passing groove; a feeding bin for adding copper materials is arranged above the vacuum furnace cover and opposite to the smelting crucible;
4) a liquid level adjusting press hammer is arranged in the continuous casting crucible, a liquid level probe is arranged at the lower end of the liquid level adjusting press hammer, a PLC controller is arranged at the upper end of the liquid level adjusting press hammer, and the PLC controller is used for controlling the lifting of the liquid level adjusting press hammer so as to keep the liquid level of copper liquid in the continuous casting crucible stable;
5) heaters for maintaining the state of copper liquid are arranged outside the liquid passing groove, the continuous casting crucible and the crystallizer so as to stabilize the static pressure difference between the liquid level of the copper liquid and the crystallizer, and qualified high-purity single crystal copper rods can be continuously and stably produced.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic sectional view of the vacuum melting furnace of the present invention;
FIG. 3 is a schematic sectional view of the heat-insulating continuous casting pan of the present invention;
the labels in the figure are: 1. the device comprises a vacuum furnace cover, 2, a vacuum smelting furnace, 3, a medium-frequency induction heating coil, 4, a smelting crucible, 5, a liquid passing groove, 6, a vacuum gate valve, 7, a heat preservation continuous casting pot, 8, a continuous casting crucible, 9, a heater, 10, a crystallizer, 11, a heater, 12, a cooling water jacket, 13 and a traction winding mechanism.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
A continuous casting device for producing high-purity single crystal copper rods by continuous feeding comprises a vacuum furnace cover 1, a vacuum smelting furnace 2, a smelting crucible 4, a vacuum gate valve 6, a heat-preservation continuous casting pot 7, a continuous casting crucible 8, a crystallizer 10, a cooling water jacket 12 and a traction winding mechanism 13, wherein the vacuum smelting furnace 2 is communicated with the inlet end of the heat-preservation continuous casting pot 7 through the vacuum gate valve 6, and the outlet end of the heat-preservation continuous casting pot 7 is connected with the cooling water jacket 12 and the traction winding mechanism 13 through sealing elements; after the raw material copper plate is melted in the melting crucible 4, introducing protective gas, opening the vacuum gate valve 6, tilting the melting crucible 4 to pour the copper liquid into the continuous casting crucible 8, keeping the liquid level of the copper liquid in the continuous casting crucible 8 stable, and continuously and stably producing a single crystal copper rod by pulling the winding mechanism 13; the smelting crucible 4 is positioned in the vacuum smelting furnace 2, and a medium-frequency induction heating coil 3 is arranged outside the smelting crucible 4 to stir and heat the copper plate in the smelting crucible 4; a liquid passing groove 5 is arranged right below the smelting crucible 4, the tail end of the liquid passing groove 5 is connected with a continuous casting crucible 8, and copper liquid flows into the continuous casting crucible 8 through the liquid passing groove 5; a feeding bin for adding copper materials is arranged above the vacuum furnace cover 1, which is over against the smelting crucible 4.
The basic implementation manner of the present invention can be further improved, perfected and limited on the basis: if a liquid level adjusting press hammer 9 is arranged in the continuous casting crucible 8, a liquid level probe is arranged at the lower end of the liquid level adjusting press hammer 9, a PLC controller is arranged at the upper end of the liquid level adjusting press hammer 9, and the liquid level of the copper liquid in the continuous casting crucible 8 is kept stable by controlling the lifting of the liquid level adjusting press hammer 9 through the PLC controller.
The basic implementation manner of the present invention can be further improved, perfected and limited on the basis: for example, the protective gas introduced into the melting crucible 4 is argon or nitrogen.
The basic implementation manner of the present invention can be further improved, perfected and limited on the basis: the liquid passing tank 5, the continuous casting crucible 8 and the mold 10 are provided with heaters 11 for maintaining the state of the copper liquid outside.
The basic implementation manner of the present invention can be further improved, perfected and limited on the basis: the traction winding mechanism 13 includes two sets of rollers that wind in opposite directions, so as to continuously pull out the single crystal copper rod.
In the actual operation, a raw material copper plate (or mother alloy is added in the middle of smelting through an alloy feeding bin) is added into a smelting crucible 4 for vacuum melting, (the alloy can also be produced by using the stirring action of medium-frequency induction), protective gas (the protective gas is argon or nitrogen) is introduced into the vacuum smelting furnace after melting until the positive pressure is consistent with the pressure of a heat-preservation continuous casting furnace, opening a vacuum gate valve 6, pushing a liquid passing groove 5 preheated in a vacuum furnace to a preset position, pouring copper liquid into an inlet of the liquid passing groove 5 by a tilting smelting crucible 4, enabling the copper liquid to flow into a continuous casting crucible 8 in a heat-preservation continuous casting furnace through a filter liquid groove 5, enabling the continuous casting crucible 8 to automatically control a lifting liquid level adjusting press hammer through a signal generated by a liquid level probe by a PLC (programmable logic controller), keeping the liquid level of the copper liquid in a continuous casting tong pot stable, so as to stabilize the static pressure difference between the liquid level of the copper liquid and the crystallizer 10, and can continuously and stably produce qualified high-purity single crystal copper rods. After the liquid pouring is finished, the liquid passing groove 5 is pulled back, the vacuum gate valve 6 is closed, the next charging, smelting and liquid passing can be carried out after the smelting crucible 4 is cooled, the copper liquid in the continuous casting crucible 8 is supplemented, and the continuous drawing of the single crystal copper rod is kept.
The utility model discloses the method is reasonable feasible, and design benefit can be stable, uninterrupted production high-purity single crystal copper pole in succession, and the dependable performance reduces manufacturing cost, improves production efficiency, solves and needs to adopt hot type continuous casting in single crystal copper pole production in present most mills, and output is very little, and single crystal copper crystalline grain is unqualified, causes the waste, has increased manufacturing cost, influences technical problem such as product quality and the productivity effect of enterprise, to prior art, has fine market prospect and development space.
The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples, and various changes can be made without departing from the concept of the present invention within the knowledge of those skilled in the art.
Claims (5)
1. The utility model provides a continuous casting device of high-purity single crystal copper pole of continuous feed production which characterized in that: the device comprises a vacuum furnace cover (1), a vacuum smelting furnace (2), a smelting crucible (4), a vacuum gate valve (6), a heat-preservation continuous casting pot (7), a continuous casting crucible (8), a crystallizer (10), a cooling water jacket (12) and a traction winding mechanism (13), wherein the vacuum smelting furnace (2) is communicated with the inlet end of the heat-preservation continuous casting pot (7) through the vacuum gate valve (6), and the outlet end of the heat-preservation continuous casting pot (7) is connected with the cooling water jacket (12) and the traction winding mechanism (13) through sealing elements; after a raw material copper plate is melted in a melting crucible (4), introducing protective gas, opening a vacuum gate valve (6), tilting the melting crucible (4) to pour copper liquid into a continuous casting crucible (8), keeping the liquid level of the copper liquid in the continuous casting crucible (8) stable, and continuously and stably producing a single crystal copper rod by a traction winding mechanism (13) in a traction manner; the smelting crucible (4) is positioned in the vacuum smelting furnace (2), and a medium-frequency induction heating coil (3) is arranged outside the smelting crucible (4) to stir and heat the copper plate in the smelting crucible (4); a liquid passing groove (5) is arranged right below the smelting crucible (4), the tail end of the liquid passing groove (5) is connected with the continuous casting crucible (8), and the copper liquid flows into the continuous casting crucible (8) through the liquid passing groove (5); a feeding bin for adding copper materials is arranged above the vacuum furnace cover (1) and right above the smelting crucible (4).
2. The continuous casting apparatus for producing a high purity single crystal copper rod with continuous feeding according to claim 1, wherein: the device is characterized in that a liquid level adjusting press hammer (9) is arranged in the continuous casting crucible (8), a liquid level probe is arranged at the lower end of the liquid level adjusting press hammer (9), a PLC (programmable logic controller) is arranged at the upper end of the liquid level adjusting press hammer (9), and the liquid level adjusting press hammer (9) is controlled to lift through the PLC to keep the liquid level of copper liquid in the continuous casting crucible (8) stable.
3. The continuous casting apparatus for producing a high purity single crystal copper rod with continuous feeding according to claim 1, wherein: the protective gas introduced into the smelting crucible (4) is argon or nitrogen.
4. The continuous casting apparatus for producing a high purity single crystal copper rod with continuous feeding according to claim 1, wherein: heaters (11) for maintaining the state of copper liquid are arranged outside the liquid passing groove (5), the continuous casting crucible (8) and the crystallizer (10).
5. The continuous casting apparatus for producing a high purity single crystal copper rod with continuous feeding according to claim 1, wherein: the traction winding mechanism (13) comprises an upper group of rollers and a lower group of rollers which oppositely wind to continuously pull out the single crystal copper rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020313701.1U CN211990855U (en) | 2020-03-13 | 2020-03-13 | Continuous casting device for producing high-purity single crystal copper rod by continuous feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020313701.1U CN211990855U (en) | 2020-03-13 | 2020-03-13 | Continuous casting device for producing high-purity single crystal copper rod by continuous feeding |
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| Publication Number | Publication Date |
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| CN211990855U true CN211990855U (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020313701.1U Active CN211990855U (en) | 2020-03-13 | 2020-03-13 | Continuous casting device for producing high-purity single crystal copper rod by continuous feeding |
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| CN (1) | CN211990855U (en) |
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2020
- 2020-03-13 CN CN202020313701.1U patent/CN211990855U/en active Active
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