CN107537988A - Electric wire long length high purity copper rod of metal alloy base horizontally continuously casting device and casting technique - Google Patents
Electric wire long length high purity copper rod of metal alloy base horizontally continuously casting device and casting technique Download PDFInfo
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- CN107537988A CN107537988A CN201710725865.8A CN201710725865A CN107537988A CN 107537988 A CN107537988 A CN 107537988A CN 201710725865 A CN201710725865 A CN 201710725865A CN 107537988 A CN107537988 A CN 107537988A
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Abstract
The present invention provides a kind of electric wire long length high purity copper rod of metal alloy base horizontally continuously casting device, including：Smelting furnace；Holding furnace, the first isolating valve, charging mechanism, crystal system, haulage gear, put away sports equipment mechanism, vacuum system and inert gas plenum system.The present invention also provides a kind of casting technique of electric wire long length high purity copper rod of metal alloy base.High purity copper and alloy raw material melting under vacuum conditions are carried out continuously casting by the present invention under the conditions of protective atmosphere；Using that will not introduce other impurities element in copper alloy bar base produced by the invention, oxygen content is not more than 5ppm, can be with endless on bar base length ideal；The various binary copper alloys such as alloy such as Kufil, copper magnesium alloy, signal bronze and Ternary copper chromium zirconium is included with special high purity copper rod of metal alloy base species using electric wire produced by the invention.
Description
Technical field
The present invention relates to high purity copper rod of metal alloy base manufacturing field, more particularly to a kind of electric wire long length high purity copper
Rod of metal alloy base horizontally continuously casting device and casting technique.
Background technology
In wires and cables industry, the common conductor rods base mode of production includes continuous casting and rolling, up-drawing method and ingot casting method etc..Even
Casting tandem rolling is usually used in the high-volume continuous production of fine copper bar base, and theoretical upper boom base length is given birth to up to endless, but using this method
The bar base impurity content particularly oxygen element content of production is higher, generally 100~500ppm；Up-drawing method is usually used in binary copper alloys
The continuous casting of bar base, including copper silver, copper magnesium and copper and tin etc., can also produce unlimited stock base using this method in theory, but
In this method raw material melting and insulation etc. process be to be carried out in the burner hearth of refractory lining material, draw casting bar base during
New other impurities element can be introduced, so as to influence the performance of final bar base；In cable industry, can also ingot casting method be used to produce
Special cable copper alloy, this method melting and casting under vacuum conditions, following process is carried out again after an ingot casting shaping, is adopted
The rod of metal alloy base purity produced with this method is higher, and oxygen content can also be controlled within 10ppm, and will not introduce new its
His impurity element, but single ingot casting it is processed after form the weight of single bar base and can only achieve tens of kilograms, at most also only one or two
Hundred kilograms, the requirement of special cable conductor charge length can not be met.
It is high that a kind of up-drawing method production is disclosed in the Chinese invention patent application specification of application number 201110089776.1
The method of pure glitter copper lever.Its method is as follows：Honest material will be matched somebody with somebody after melting copper raw material stoving needed for melting, is added in smelting furnace,
The calcining charcoal of molten copper liquid top covering 100-150 millimeters thicks is being played, until red copper all melts, copper liquid acts in fluid force
Under, constantly flow to holding furnace；High-temperature copper liquid is seethed with excitement degasification before dummy ingot, the red copper liquid level into holding furnace adds ready
High purity graphite carbon dust, to the liquid level 50-100 millimeters of holding furnace at be passed through high pure nitrogen；After boiling degasification is carried out, covering calcining
Charcoal, bell is covered, carry out cast operation, draw-casting machine cast is drawn by up-drawing method, then by up-drawing method graphite crystallizing system 4
Cooling, and qualified high-purity oxygen-free copper bar blank is obtained, it is wound on the traction passive winder of ingot casting；By eight frame cold rolling bars
Machine, highlights copper bar blank by high-purity anaerobic and carries out multiple tracks rolling and draw and attenuate, and copper bar is pulled into by wire drawing machine, by after the assay was approved,
Finished product is made.The above-mentioned high-purity glitter copper lever of production can introduce new other impurities element during casting bar base is drawn, so as to shadow
Ring the performance of final bar base
The content of the invention
The invention solves first technical problem be to provide a kind of electric wire long length high purity copper rod of metal alloy base
Horizontally continuously casting device, to overcome the drawbacks described above of prior art.
To achieve the above object, the present invention provides a kind of electric wire and cast with long length high purity copper rod of metal alloy base horizontal continuity
Device is made, including：Smelting furnace；Holding furnace, the holding furnace are located at below the smelting furnace, and by the first isolating valve with it is described
Smelting furnace connects；For adding raw materials into the charging mechanism in smelting furnace, the charging mechanism by the second isolating valve with it is described
Smelting furnace connects；For melt to be frozen into the crystal system of bar base, the crystal system is connected with the holding furnace；Will crystallization
The haulage gear that the bar base solidified in system pulls straight, the haulage gear are connected with the crystal system；For by bar
Base winds the mechanism that puts away sports equipment of lopping, and the mechanism that puts away sports equipment is connected with the haulage gear；Vacuum system, it is the smelting furnace, described
Holding furnace, the charging mechanism are connected with the vacuum system respectively；Inert gas plenum system, the smelting furnace, the guarantor
Warm stove, the charging mechanism are connected with the inert gas plenum system respectively.
Preferably, including sampling mechanism, the sampling mechanism are connected by the second isolating valve with smelting furnace, the sampler
Structure is connected with the vacuum system, inert gas plenum system connection.
Preferably, the holding furnace is provided with level monitoring mechanism, the level monitoring mechanism, charging mechanism difference
It is connected with controller.
Preferably, a diameter of 3~20mm of the bar base outlet of the crystal system.
The invention solves second technical problem be to provide a kind of electric wire long length high purity copper rod of metal alloy
Base casting technique, comprises the following steps：S1, add copper raw material and alloy raw material by preset ratio in smelting furnace；S2, open very
Empty set is united, and by the smelting furnace and the insulation stove evacuation, is then turned on smelting furnace and raw material is heated until being completely melt；
S3, inert gas plenum system is opened, the inert gas of high-purity is filled with to the smelting furnace and the holding furnace, made described molten
Furnace and the holding furnace are in barotropic state；S4, the first isolating valve is opened, melt is transferred to insulation from the smelting furnace
In stove；S5, melt is transferred in crystal system from holding furnace it is frozen into bar base；S6, by haulage gear by crystal system
In the bar base that has solidified pull straight, while bar base is wound lopping by the use mechanism that puts away sports equipment.Preferably, in step s 2, it is fusion
After body is completely melt, melt sample is taken out by sampling mechanism and analyzed, if the bath composition after analysis does not meet setting
It is required that raw material adjustment bath composition is added into smelting furnace by charging mechanism, it is ensured that bath composition in casting process, bar base into
The uniformity divided.
As described above, electric wire of the present invention with long length high purity copper rod of metal alloy base horizontally continuously casting device and
Casting technique, have the advantages that：High purity copper and alloy raw material melting under vacuum conditions are being protected gas by the present invention
Continuously casting is carried out under the conditions of atmosphere；Using other impurities element, oxygen content will not be introduced in copper alloy bar base produced by the invention
, can be with endless on bar base length ideal no more than 5ppm；Using electric wire produced by the invention with special high-purity copper alloy
Bar base species includes the various binary copper alloys such as alloy such as Kufil, copper magnesium alloy, signal bronze and Ternary copper chromium zirconium；Using
Long length high purity copper rod of metal alloy base produced by the invention needs not move through that bar base continues or middle process continues, prepared by the device
Copper alloy bar base can meet the long length bar base requirement of special cable.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Component label instructions
1 smelting furnace
11 second isolating valves
2 holding furnaces
21 first isolating valves
22 level monitoring mechanisms
3 charging mechanisms
4 crystal systems
5 haulage gears
6 put away sports equipment mechanism
7 vacuum systems
8 inert gas plenum systems
9 sampling mechanisms
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only coordinating specification to be taken off
The content shown, so that those skilled in the art understands and reads, the enforceable qualifications of the present invention are not limited to, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, do not influenceing the present invention
Under the effect of can be generated and the purpose that can reach, it all should still fall and obtain the model that can cover in disclosed technology contents
In enclosing.Meanwhile cited such as " on ", " under ", "left", "right", the term of " centre " in this specification, it is merely convenient to chat
That states understands, and is not used to limit the enforceable scope of the present invention, and its relativeness is altered or modified, and skill is being changed without essence
Held in art, when being also considered as the enforceable category of the present invention.
Filled as shown in figure 1, the present invention provides a kind of electric wire with long length high purity copper rod of metal alloy base horizontal continuous-casting
Put, including：Smelting furnace 1, holding furnace 2, charging mechanism 3, crystal system 4, haulage gear 5, the mechanism that puts away sports equipment 6, vacuum system 7 and lazy
Property gas inflated system 8.
The smelting furnace 1 is used for smelting copper alloy and alloy raw material, until being completely melt to adopt for melt, the smelting furnace 1
Raw material is melted with Frequency Induction Heating mode, the capacity of smelting furnace is calculated as 100kg by copper.
The holding furnace 2 is used to heating and being incubated melt, and holding furnace 2 can use Elema to heat, and the holding furnace 2 is located at
The lower section of smelting furnace 1, and be connected by the first isolating valve 21 with the smelting furnace 1, after the smelting furnace 1 is completely melt, beat
The first isolating valve 21 is driven, melt transfer to holding furnace 2 is incubated, and insulation heat size is calculated as 200kg by copper.
The charging mechanism 3 is used to add raw materials into smelting furnace 1, the charging mechanism 3 by the second isolating valve 11 with
The smelting furnace 1 connects, and once feed maximum weight 100kg into smelting furnace 1；The charging mechanism 3 is in charging, smelting furnace
Push-pull valve between holding furnace is closed, and does not influence the continuous casting of copper alloy bar base, so as to ensure that apparatus of the present invention can for a long time not
Discontinuously continuously casting.
The crystal system 4 is used to the melt of entrance being frozen into bar base, and the crystal system 4 exists with the holding furnace 2
Horizontal direction connects, and at utmost optimizes the use environment of operating personnel.
The haulage gear 5 is used to pull straight the bar base solidified in crystal system 4, the haulage gear 5 and institute
State crystal system 4 to connect, haulage gear speed can adjust, and velocity interval is 0 to 1000mm/min.
The mechanism 6 that puts away sports equipment is used to bar base winding lopping, and the mechanism 6 that puts away sports equipment is connected with the haulage gear 5, described
Feel mechanism 6 should be synchronous with the haulage gear 5.
The vacuum system 7 ensures that copper and alloy raw material are in vacuum state in fusion process, to avoid by air
Pollution, the smelting furnace 1, the holding furnace 2, the charging mechanism 3 are connected with the vacuum system 7 respectively.
The inert gas plenum system 8 can provide high purity inert gas, such as argon gas, ensure melt be protected from airborne pollution and
Bar base casting process is stable, the smelting furnace 1, the holding furnace 2, the charging mechanism 3 respectively with the inert gas plenum
System 8 connects.
As illustrated in fig. 1, it is preferred that electric wire long length high purity copper rod of metal alloy base horizontally continuously casting device also includes
Sampling mechanism 9, the sampling mechanism 9 are connected by the second isolating valve 11 with smelting furnace 1, the sampling mechanism 9 and the vacuum
System 7 connects, the inert gas plenum system 8 connects.When the metal molten in smelting furnace, the sampling mechanism can be to melt
It is sampled, after to the quick analysis of sample, bath composition can be adjusted by adding alloy in time, so as to ensure casting process
Middle bath composition and bar base consistence of composition.
As illustrated in fig. 1, it is preferred that the holding furnace 2 is provided with level monitoring mechanism 22, the level monitoring mechanism 22,
The charging mechanism 3 is connected with controller respectively.The level monitoring mechanism 22 can be liquid level sensor, for monitoring holding furnace
Liquid level in 2, and signal is fed back on controller, when liquid level is less than setting value, then will by charging mechanism 3
Raw material is added in smelting furnace 1, ensures the stability of copper alloy Gan Pi cast sturctures.
As illustrated in fig. 1, it is preferred that a diameter of 3~20mm of the bar base outlet of the crystal system 4, such as diameter are optional
With 8mm, 12mm and 16mm.
The present invention also provides a kind of electric wire long length high purity copper rod of metal alloy base casting technique, comprises the following steps：
S1, add copper raw material and alloy raw material by preset ratio in smelting furnace 1；S2, vacuum system 7 is opened, by the He of smelting furnace 1
The holding furnace 2 vacuumizes, and is then turned on smelting furnace 1 and raw material is heated until being completely melt；S3, open inert gas plenum system
System 8, the inert gas of high-purity is filled with to the smelting furnace 1 and the holding furnace 2, makes the smelting furnace 1 and the holding furnace 2
In barotropic state；S4, the first isolating valve 21 is opened, melt is transferred in holding furnace 2 from the smelting furnace 1；S5, it will melt
Body, which is transferred to from holding furnace 2 in crystal system 4, is frozen into bar base；S6, it will be solidified in crystal system 4 by haulage gear 5
Bar base pull straight, while use put away sports equipment mechanism 6 by bar base wind lopping.When tank level control system monitors to melt in holding furnace
When body has been reduced to setting liquid level, charging mechanism adds raw material into smelting furnace, after melting sources into holding furnace
Fluid infusion, so as to realize the long length continuously casting of copper alloy bar base.
Preferably, in step s 2, after melt is completely melt, melt sample is taken out by sampling mechanism 9 and analyzed,
If the bath composition after analysis does not meet sets requirement, add by charging mechanism 3 into smelting furnace 1 raw material adjustment melt into
Point, it is ensured that bath composition, bar base consistence of composition in casting process；If the bath composition after analysis meets sets requirement,
Then continue the next step.
Four kinds of specific embodiments of the invention presented below：
Embodiment 1：
A diameter of 8mm high-purity Kufil bar blank horizontal casting.High-purity electrolytic copper plate and high-purity silver granuel are placed in melting
In stove 1, vacuum system 7 is opened, is evacuated to the raw material that power-on after 10-3Pa to smelting furnace 1 be heated in smelting furnace
It is completely melt；Holding furnace 2 is evacuated to 10-3Pa, power-on preheats to holding furnace 2, and is filled with high-purity argon gas simultaneously
To barotropic state.Then it is consistent to pressure state and holding furnace 2 that high-purity argon gas will be filled with smelting furnace 1, opens smelting furnace 1 with protecting
The first isolating valve 21 between warm stove 2, by the melt transfer in smelting furnace 1 into holding furnace 2, by heat temperature raising in holding furnace 2
During to 1150 DEG C, crystal system 4 and hitch structure 5 are opened, the outlet diameter of crystal system 4 is 8mm, crystal system cooling water flow
For 500L/h, hauling speed is set to 120mm/min, while opens the mechanism 6 that puts away sports equipment and wind bar base.When level monitoring mechanism 22 is supervised
Liquid level is surveyed when being less than setting value, then high-purity electrolytic copper plate and high-purity silver granuel are placed in charging mechanism 3, and by charging mechanism
3 and smelting furnace 1 be evacuated to 10-3Pa, the second isolating valve 11 between charging mechanism 3 and smelting furnace 1 is opened, by charging mechanism 3
In raw material be transferred in smelting furnace 1, and close the second isolating valve 11, then start above-mentioned melting and casting process again.Pass through
Said process, can be with the high-purity Kufil bar bases of a diameter of 8mm of continuous production.
Embodiment 2：
A diameter of 12mm high-purity copper magnesium alloy bar blank horizontal casting.From high-purity electrolytic copper plate and high-purity magnesium ingot as former
Material is placed in smelting furnace 1, opens vacuum system 7, power-on carries out being heated to melting to smelting furnace 1 after being evacuated to 10-3Pa
Raw material in furnace is completely melt；Holding furnace 2 is evacuated to 10-3Pa, power-on preheats to holding furnace 2, and simultaneously
High-purity argon gas is filled with to barotropic state.Then it is consistent to pressure state and holding furnace 2 that high-purity argon gas will be filled with smelting furnace 1, is opened
The first isolating valve 21 between smelting furnace 1 and holding furnace 2 is opened, by the melt transfer in smelting furnace 1 into holding furnace 2, will be incubated
When 1120 DEG C are heated in stove 2, it is 12mm to open crystal system 4 and hitch structure 5, the outlet diameter of crystal system 4, crystallization
System cooling water flow is 800L/h, and hauling speed is set to 120mm/min, while opens the mechanism 6 that puts away sports equipment and wind bar base.Work as liquid
When the position monitoring liquid level of mechanism for monitoring 22 is less than setting value, then high-purity electrolytic copper plate and high-purity magnesium ingot are placed in charging mechanism 3
In, and charging mechanism 3 and smelting furnace 1 are evacuated to 10-3Pa, open the second isolation between charging mechanism 3 and smelting furnace 1
Valve 11, the raw material in charging mechanism 3 is transferred in smelting furnace 1, and closes the second isolating valve 11, then start above-mentioned melting again
And casting process., can be with the high-purity copper magnesium alloy bar bases of a diameter of 12mm of continuous production by said process.
Embodiment 3：
A diameter of 12mm high-purity signal bronze bar blank horizontal casting.From certain ingredients requirement high-purity electrolytic copper plate and
High purity metal tin is placed in smelting furnace 1 as raw material, opens vacuum system 7, power-on is to melting after being evacuated to 10-3Pa
The raw material that stove 1 be heated in smelting furnace is completely melt；Holding furnace 2 is evacuated to 10-3Pa, power-on is to holding furnace 2
Preheated, and be filled with high-purity argon gas simultaneously to barotropic state.Then will be filled with smelting furnace 1 high-purity argon gas to pressure state with
Holding furnace 2 is consistent, opens the first isolating valve 21 between smelting furnace 1 and holding furnace 2, by the melt transfer in smelting furnace 1 to guarantor
In warm stove 2, during by being heated to 1120 DEG C in holding furnace 2, opening crystal system 4 and hitch structure 5, crystal system 4 export
A diameter of 12mm, crystal system cooling water flow are 800L/h, and hauling speed is set to 120mm/min, while opens the mechanism 6 that puts away sports equipment
Bar base is wound.When level monitoring mechanism 22, which monitors liquid level, is less than setting value, then by high-purity electrolytic copper plate and high purity tin
Ingot is placed in charging mechanism 3, and charging mechanism 3 and smelting furnace 1 are evacuated into 10-3Pa, opens charging mechanism 3 and smelting furnace 1
Between the second isolating valve 11, the raw material in charging mechanism 3 is transferred in smelting furnace 1, and close the second isolating valve 11, then
Start above-mentioned melting and casting process again., can be with the high-purity signal bronze bar bases of a diameter of 12mm of continuous production by said process.
Embodiment 4：
A diameter of 16mm high-purity Cu-Cr-Zr alloy bar blank horizontal casting.From the high pure electrolytic copper of certain ingredients requirement
Plate, copper chromium intermediate alloy and copper zirconium intermediate alloy are placed in smelting furnace 1 as raw material, are opened vacuum system 7, are evacuated to
The raw material that power-on to smelting furnace 1 be heated in smelting furnace after 10-3Pa is completely melt；Holding furnace 2 is evacuated to
10-3Pa, power-on preheat to holding furnace 2, and are filled with high-purity argon gas simultaneously to barotropic state.Then by smelting furnace 1
It is consistent to pressure state and holding furnace 2 to be filled with high-purity argon gas, opens the first isolating valve 21 between smelting furnace 1 and holding furnace 2, will
Melt transfer in smelting furnace 1 is into holding furnace 2, during by being heated to 1180 DEG C in holding furnace 2, opens the He of crystal system 4
Hitch structure 5, the outlet diameter of crystal system 4 are 12mm, and crystal system cooling water flow is 1000L/h, and hauling speed is set to
100mm/min, while open the mechanism 6 that puts away sports equipment and wind bar base.It is less than setting value when level monitoring mechanism 22 monitors liquid level
When, then high-purity electrolytic copper plate, copper chromium intermediate alloy and copper zirconium intermediate alloy are placed in charging mechanism 3, and by the He of charging mechanism 3
Smelting furnace 1 is evacuated to 10-3Pa, the second isolating valve 11 between charging mechanism 3 and smelting furnace 1 is opened, by charging mechanism 3
Raw material be transferred in smelting furnace 1, and close the second isolating valve 11, then start above-mentioned melting and casting process again.By upper
Process is stated, can be with the high-purity Cu-Cr-Zr alloy bar bases of a diameter of 16mm of continuous production.
In summary, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (6)
- A kind of 1. electric wire long length high purity copper rod of metal alloy base horizontally continuously casting device, it is characterised in that including：Smelting furnace (1)；Holding furnace (2), the holding furnace (2) are located at below the smelting furnace (1), and are melted by the first isolating valve (21) with described Furnace (1) connects；For adding raw materials into the charging mechanism (3) in smelting furnace (1), the charging mechanism (3) passes through the second isolating valve (11) It is connected with the smelting furnace (1)；For melt to be frozen into the crystal system (4) of bar base, the crystal system (4) is connected with the holding furnace (2)；The haulage gear (5) that the bar base solidified in crystal system (4) is pulled straight, the haulage gear (5) and the knot Crystallographic system system (4) connection；For bar base to be wound to the mechanism that puts away sports equipment (6) of lopping, the mechanism that puts away sports equipment (6) is connected with the haulage gear (5)；Vacuum system (7), the smelting furnace (1), the holding furnace (2), the charging mechanism (3) respectively with the vacuum system (7) connect；Inert gas plenum system (8), the smelting furnace (1), the holding furnace (2), the charging mechanism (3) respectively with it is described Inert gas plenum system (8) connects.
- 2. electric wire according to claim 1 long length high purity copper rod of metal alloy base horizontally continuously casting device, it is special Sign is：Including sampling mechanism (9), the sampling mechanism (9) is connected by the second isolating valve (11) with smelting furnace (1), described Sampling mechanism (9) is connected with the vacuum system (7), the inert gas plenum system (8) connection.
- 3. electric wire according to claim 1 long length high purity copper rod of metal alloy base horizontally continuously casting device, it is special Sign is：The holding furnace (2) is provided with level monitoring mechanism (22), the level monitoring mechanism (22), the charging mechanism (3) it is connected respectively with controller.
- 4. electric wire according to claim 1 long length high purity copper rod of metal alloy base horizontally continuously casting device, it is special Sign is：A diameter of 3~20mm of the bar base outlet of the crystal system (4).
- A kind of 5. electric wire long length high purity copper rod of metal alloy base casting technique, using any one of Claims 1-4 4 Electric wire long length high purity copper rod of metal alloy base horizontally continuously casting device, it is characterised in that comprise the following steps：S1, add copper raw material and alloy raw material by preset ratio in smelting furnace (1)；S2, vacuum system (7) is opened, the smelting furnace (1) and the holding furnace (2) are vacuumized, are then turned on smelting furnace (1) Raw material is heated until being completely melt；S3, inert gas plenum system (8) is opened, the inertia of high-purity is filled with to the smelting furnace (1) and the holding furnace (2) Gas, the smelting furnace (1) and the holding furnace (2) is set to be in barotropic state；S4, the first isolating valve (21) is opened, melt is transferred in holding furnace (2) from the smelting furnace (1)；S5, melt is transferred in crystal system (4) from holding furnace (2) it is frozen into bar base；S6, by haulage gear (5) the bar base solidified in crystal system (4) is pulled straight, while use is put away sports equipment mechanism (6) Bar base is wound into lopping.
- 6. electric wire according to claim 5 long length high purity copper rod of metal alloy base casting technique, it is characterised in that： In step S2, after melt is completely melt, melt sample is taken out by sampling mechanism (9) and analyzed, if molten after analysis Body composition does not meet sets requirement, and by charging mechanism (3), into smelting furnace (1), addition raw material adjusts bath composition, it is ensured that casting Bath composition, bar base consistence of composition during making.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710725865.8A CN107537988A (en) | 2017-08-22 | 2017-08-22 | Electric wire long length high purity copper rod of metal alloy base horizontally continuously casting device and casting technique |
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| CN201710725865.8A CN107537988A (en) | 2017-08-22 | 2017-08-22 | Electric wire long length high purity copper rod of metal alloy base horizontally continuously casting device and casting technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290217A (en) * | 2021-05-28 | 2021-08-24 | 金川集团股份有限公司 | Vacuum continuous casting process of high-purity oxygen-free copper rod |
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