CN109852813A - Production technology is pricked by a kind of abnormal shape copper bar high efficiency continuous casting company - Google Patents
Production technology is pricked by a kind of abnormal shape copper bar high efficiency continuous casting company Download PDFInfo
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- CN109852813A CN109852813A CN201910014454.7A CN201910014454A CN109852813A CN 109852813 A CN109852813 A CN 109852813A CN 201910014454 A CN201910014454 A CN 201910014454A CN 109852813 A CN109852813 A CN 109852813A
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- copper bar
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- degasification
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Abstract
The invention discloses a kind of special-shaped copper bar high efficiency continuous castings even to prick production technology, includes the following steps；Melting；Isothermal holding；Continuous casting processing；Copper base hot rolling；The special-shaped copper bar that will be shut out, through the anti-oxidation pipe of vacuum and the cooling drying of cooling bath；Coloring treatment technique is carried out to special-shaped copper bar；It uniformly waxes on special-shaped copper bar surface rapidly, then further around being packed after bar；For the technique by carrying out more refinings using coke, pure nitrogen gas and powdery slagging agent in electrolytic copper material progress fusion process, can remove the impurity in copper liquid is more abundant；During isothermal holding, while degasification and slagging-off are carried out, can be further ensured that the purity of copper liquid；It, can be by the continuous casting better effect of copper liquid, so that the copper base Mass Distribution after continuous casting is more uniform using ultrasonication in continuous casting processing procedure；Special-shaped copper bar is produced using casting and rolling process, and production efficiency is higher.
Description
Technical field
The present invention relates to copper rod production technical field, specially a kind of special-shaped copper bar high efficiency continuous casting even pricks production technology.
Background technique
Copper bar, is generally produced with cathode copper, and resistivity is lower than low-oxygen copper pole, therefore harsher to resistance requirement producing
Product in, oxygen-free copper bar is both economical；It manufactures oxygen-free copper bar and requires the higher raw material of quality；Oxygen-free copper bar seems more excellent
More be to draw diameter < 0.5mm copper wire, the oxygen-free copper bar of 6MM is for producing copper strap wire.
Since the technique of production copper bar is different, the oxygen content and appearance in copper bar produced are just different.Lead production
Copper bar, the proper oxygen content of technique is in 20ppm hereinafter, being oxygen-free copper bar.
Continuous casting and rolling full name continuously casting continuous rolling (English: Continue Casting Direct Rolling, letter
Claim CCDR), it is liquid metal to be poured into conticaster to cast out metal base (call continuous casting billet), then without cooling, in soaking
The metal rolled technique of roll forming in hot tandem is directly entered in furnace after held for some time.This technique dexterously
Two kinds of techniques of casting and rolling combine, and are rolled again after steel billet compared to traditional first cast out through heating stove heating
Technique, which has, to be simplified technique, improves working conditions, increase recovery rate of iron, is energy saving, improve continuous casting billet quality, be easy to implement
The advantages of mechanization and automation.
But the production technology of existing abnormal shape copper bar is also rarely employed continuous-casting continuous-rolling method and is produced, and production efficiency is low.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of special-shaped copper bar high efficiency continuous casting Lian Zhasheng
Production. art can effectively solve the problems in background technique.
To achieve the above object, the invention provides the following technical scheme: a kind of abnormal shape copper bar high efficiency continuous casting even pricks production work
Skill, comprising the following steps:
S1. melting: electrolytic copper material is placed in melting refinement in reflection melting furnace, refining process includes that coke is added to carry out
Refining slagging-off for the first time, then refined twice using pure nitrogen gas and powdery slagging agent, needed during refining in copper liquid into
Row air blast, blast pressure 0.38MPa；
S2. isothermal holding: being added purification flux in the copper liquid obtained to step S1, and copper liquid is then delivered to degasification heat preservation
In case, and degasification incubator is heated, online degasification is carried out using degasification incubator, has rotation in the degasification incubator
Turn spray head, pure nitrogen gas, gas pressure 0.25MPa, gas flow 2m are passed through by rotary nozzle3/ h, revolving speed 300r/
Min, degasification time are 7min~9min, and the temperature of degasification incubator is controlled at 1150 DEG C~1200 DEG C；By after line degasification
Copper liquid flow into twin-stage ceramic filtering device carry out melt slagging-off；
S3. continuous casting processing: the resulting copper liquid of step S2 is flowed through and is arranged before conticaster and temperature is 1130 ± 2 DEG C
Conticaster is flowed into after thermostatic oven, conticaster crystallizing wheel rotation linear velocity be 15~20m/min, cooling water flow 0.8
Under the conditions of~0.2L/h, ultrasonic output frequency 25kHz, ultrasonic power output are 450 watts, it is casting continuously to form copper base；
S4. copper base hot rolling penetrates special-shaped plug inside copper base, makes to carry out at special-shaped plug and the identical shape of copper bar
Correctly cooperation, is re-fed into section groove and is rolled, and the mill speed of slab is 13m/min；Used in the operation of rolling
The intensity of emulsion is 0.2MPa~0.3MPa, and temperature is less than 50 DEG C；The temperature control that enters to roll of slab is 700 DEG C~900 DEG C, out
Rolling temperature control is 300 DEG C~350 DEG C；
S5. by continuously rolling Kun by 12, it is 8.0~9.0mm abnormal shape copper bar that copper base, which is rolled into diameter,
The traction speed of conticaster is 39~50m/h；
S6. the special-shaped copper bar that will be shut out, through the anti-oxidation pipe of vacuum and the cooling drying of cooling bath；
S7. special-shaped copper bar resulting to step S6 carries out coloring treatment technique；
S8. it after the completion of S7, uniformly waxes on special-shaped copper bar surface rapidly, then further around being packed after bar.
As a preferred technical solution of the present invention, the hole of the twin-stage ceramic filter plate of the twin-stage ceramic filtering device
Number is 30ppi or 50ppi.
As a preferred technical solution of the present invention, the component of the emulsion is oil emulsion, alcohol and sodium hydroxide
Solution；Wherein, each composition by weight percent in roughing system are as follows: oil emulsion: 0.2~1.0%, alcohol 0.1~0.2%, surplus
For sodium hydroxide solution, adjusting emulsion pH value in roughing system by sodium hydroxide solution is 8~9.0；It is each in mill system
Composition by weight percent are as follows: oil emulsion: 1.4~1.8%, alcohol: 0.5~1.2%, surplus is sodium hydroxide solution, passes through hydrogen
It is 8~8.5 that sodium hydroxide solution, which adjusts emulsion pH value in roughing system,.
As a preferred technical solution of the present invention, the coloring treatment technique includes that degreasing and rust removal descales ---
--- --- --- --- --- coloring treatment --- washing --- is after dry and other for washing for neutralization for washing for pickling polishing for washing
Processing.
Compared with prior art, the invention proposes a kind of special-shaped copper bar high efficiency continuous castings even to prick production technology, by right
Electrolytic copper material carries out in fusion process, carries out more refinings using coke, pure nitrogen gas and powdery slagging agent, can will be miscellaneous in copper liquid
Matter removes more abundant；During isothermal holding, while degasification and slagging-off are carried out, can be further ensured that the purity of copper liquid；
It, can be by the continuous casting better effect of copper liquid, so that the copper base quality after continuous casting using ultrasonication in continuous casting processing procedure
It is distributed more uniform；Special-shaped copper bar is produced using casting and rolling process, and production efficiency is higher.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain, it is clear that described embodiment is only this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
The present invention provides a kind of abnormal shape copper bar high efficiency continuous casting company and pricks production technology, comprising the following steps:
S1. melting: electrolytic copper material is placed in melting refinement in reflection melting furnace, refining process includes that coke is added to carry out
Refining slagging-off for the first time, then refined twice using pure nitrogen gas and powdery slagging agent, needed during refining in copper liquid into
Row air blast, blast pressure 0.38MPa；
S2. isothermal holding: being added purification flux in the copper liquid obtained to step S1, and copper liquid is then delivered to degasification heat preservation
In case, and degasification incubator is heated, online degasification is carried out using degasification incubator, has rotation in the degasification incubator
Turn spray head, pure nitrogen gas, gas pressure 0.25MPa, gas flow 2m3/h, revolving speed 300r/ are passed through by rotary nozzle
Min, degasification time are 7min~9min, and the temperature of degasification incubator is controlled at 1150 DEG C~1200 DEG C；By after line degasification
Copper liquid flow into twin-stage ceramic filtering device carry out melt slagging-off, the twin-stage ceramic filter plate of the twin-stage ceramic filtering device
Hole count is 30ppi or 50ppi；
S3. continuous casting processing: the resulting copper liquid of step S2 is flowed through and is arranged before conticaster and temperature is 1130 ± 2 DEG C
Conticaster is flowed into after thermostatic oven, conticaster crystallizing wheel rotation linear velocity be 15~20m/min, cooling water flow 0.8
Under the conditions of~0.2L/h, ultrasonic output frequency 25kHz, ultrasonic power output are 450 watts, it is casting continuously to form copper base；
S4. copper base hot rolling penetrates special-shaped plug inside copper base, makes to carry out at special-shaped plug and the identical shape of copper bar
Correctly cooperation, is re-fed into section groove and is rolled, and the mill speed of slab is 13m/min；Used in the operation of rolling
The intensity of emulsion is 0.2MPa~0.3MPa, and temperature is less than 50 DEG C；The temperature control that enters to roll of slab is 700 DEG C~900 DEG C, out
Rolling temperature control is 300 DEG C~350 DEG C, and the component of the emulsion is oil emulsion, alcohol and sodium hydroxide solution；Wherein, slightly
Roll each composition by weight percent in system are as follows: oil emulsion: 0.2~1.0%, alcohol 0.1~0.2%, surplus is that sodium hydroxide is molten
Liquid, adjusting emulsion pH value in roughing system by sodium hydroxide solution is 8~9.0；Each Ingredients Weight percentage in mill system
Than are as follows: oil emulsion: 1.4~1.8%, alcohol: 0.5~1.2%, surplus is sodium hydroxide solution, passes through sodium hydroxide solution tune
Saving emulsion pH value in roughing system is 8~8.5；
S5. by continuously rolling Kun by 12, it is 8.0~9.0mm abnormal shape copper bar that copper base, which is rolled into diameter,
The traction speed of conticaster is 39~50m/h；
S6. the special-shaped copper bar that will be shut out, through the anti-oxidation pipe of vacuum and the cooling drying of cooling bath；
S7. special-shaped copper bar resulting to step S6 carries out coloring treatment technique, and the coloring treatment technique includes that oil removing removes
Rust descales, and --- --- --- washing --- neutralizes --- washing --- coloring treatment --- water for pickling polishing for washing
Wash --- dry and other post-processings；
S8. it after the completion of S7, uniformly waxes on special-shaped copper bar surface rapidly, then further around being packed after bar.
The invention proposes a kind of special-shaped copper bar high efficiency continuous castings even to prick production technology, by melting to electrolytic copper material
During refining, more refinings are carried out using coke, pure nitrogen gas and powdery slagging agent, can more be filled what the impurity in copper liquid removed
Point；During isothermal holding, while degasification and slagging-off are carried out, can be further ensured that the purity of copper liquid；In continuous casting processing procedure
In, it, can be by the continuous casting better effect of copper liquid, so that the copper base Mass Distribution after continuous casting is more uniform using ultrasonication；
Special-shaped copper bar is produced using casting and rolling process, and production efficiency is higher.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of abnormal shape copper bar high efficiency continuous casting even pricks production technology, it is characterised in that: the following steps are included:
S1. melting: electrolytic copper material is placed in melting refinement in reflection melting furnace, refining process includes that coke is added to carry out first
Secondary refining slagging-off, then refined twice using pure nitrogen gas and powdery slagging agent, it needs to rouse in copper liquid during refining
Wind, blast pressure 0.38MPa；
S2. isothermal holding: purification flux is added in the copper liquid obtained to step S1, copper liquid is then delivered to degasification incubator
It is interior, and degasification incubator is heated, online degasification is carried out using degasification incubator, has rotation in the degasification incubator
Spray head is passed through pure nitrogen gas, gas pressure 0.25MPa, gas flow 2m by rotary nozzle3/ h, revolving speed 300r/min,
The degasification time is 7min~9min, and the temperature of degasification incubator is controlled at 1150 DEG C~1200 DEG C；By the copper after line degasification
Liquid stream enters twin-stage ceramic filtering device and carries out melt slagging-off；
S3. continuous casting processing: the resulting copper liquid of step S2 is flowed through and is arranged before conticaster and constant temperature that temperature is 1130 ± 2 DEG C
Conticaster is flowed into after heating furnace, conticaster crystallizing wheel rotation linear velocity be 15~20m/min, cooling water flow be 0.8~
Under the conditions of 0.2L/h, ultrasonic output frequency 25kHz, ultrasonic power output are 450 watts, it is casting continuously to form copper base；
S4. copper base hot rolling penetrates special-shaped plug inside copper base, makes to carry out at special-shaped plug and the identical shape of copper bar correct
Cooperation, be re-fed into section groove and rolled, the mill speed of slab is 13m/min；It is emulsified used in the operation of rolling
The intensity of liquid is 0.2MPa~0.3MPa, and temperature is less than 50 DEG C；The temperature control that enters to roll of slab is 700 DEG C~900 DEG C, rolls temperature out
Degree control is 300 DEG C~350 DEG C；
S5. by continuously rolling Kun by 12, it is 8.0~9.0mm abnormal shape copper bar, continuous casting that copper base, which is rolled into diameter,
The traction speed of machine is 39~50m/h；
S6. the special-shaped copper bar that will be shut out, through the anti-oxidation pipe of vacuum and the cooling drying of cooling bath；
S7. special-shaped copper bar resulting to step S6 carries out coloring treatment technique；
S8. it after the completion of S7, uniformly waxes on special-shaped copper bar surface rapidly, then further around being packed after bar.
2. a kind of special-shaped copper bar high efficiency continuous casting according to claim 1 even pricks production technology, which is characterized in that the twin-stage
The hole count of the twin-stage ceramic filter plate of ceramic filtering device is 30ppi or 50ppi.
3. a kind of special-shaped copper bar high efficiency continuous casting according to claim 1 even pricks production technology, which is characterized in that the emulsification
The component of liquid is oil emulsion, alcohol and sodium hydroxide solution；Wherein, each composition by weight percent in roughing system are as follows: oil emulsion:
0.2~1.0%, alcohol 0.1~0.2%, surplus is sodium hydroxide solution, adjusts cream in roughing system by sodium hydroxide solution
Changing liquid pH value is 8~9.0；Each composition by weight percent in mill system are as follows: oil emulsion: 1.4~1.8%, alcohol: 0.5~
1.2%, surplus is sodium hydroxide solution, and adjusting emulsion pH value in roughing system by sodium hydroxide solution is 8~8.5.
4. a kind of special-shaped copper bar high efficiency continuous casting according to claim 1 even pricks production technology, which is characterized in that the coloring
Treatment process includes that degreasing and rust removal descales, and --- --- --- washing --- neutralizes --- washing --- for pickling polishing for washing
Coloring treatment --- washing --- dry and other post-processings.
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| CN201910014454.7A CN109852813A (en) | 2019-01-07 | 2019-01-07 | Production technology is pricked by a kind of abnormal shape copper bar high efficiency continuous casting company |
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| CN201910014454.7A CN109852813A (en) | 2019-01-07 | 2019-01-07 | Production technology is pricked by a kind of abnormal shape copper bar high efficiency continuous casting company |
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Cited By (6)
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| CN111235405A (en) * | 2020-03-20 | 2020-06-05 | 四川博鑫铜业有限公司 | Low-oxygen copper rod preparation process |
| CN111229857A (en) * | 2020-01-16 | 2020-06-05 | 浙江久立电气材料有限公司 | Manufacturing process of green and harmless precision wire for household appliances |
| CN111408631A (en) * | 2020-01-16 | 2020-07-14 | 浙江久立电气材料有限公司 | Manufacturing process of high-voltage-resistant precise wire suitable for new energy automobile |
| CN112077143A (en) * | 2020-07-30 | 2020-12-15 | 河北新金轧材有限公司 | Continuous plate production line for hot-rolled coiled plates |
| CN113198867A (en) * | 2021-04-15 | 2021-08-03 | 安徽金池新材料有限公司 | Production process of copper strip |
| CN113560513A (en) * | 2021-08-11 | 2021-10-29 | 福州丹文科技有限公司 | Automatic control system for copper rod continuous casting and rolling |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111229857A (en) * | 2020-01-16 | 2020-06-05 | 浙江久立电气材料有限公司 | Manufacturing process of green and harmless precision wire for household appliances |
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| CN113560513A (en) * | 2021-08-11 | 2021-10-29 | 福州丹文科技有限公司 | Automatic control system for copper rod continuous casting and rolling |
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