CN106903183A - The manufacture system and method for radio-frequency cable oxygen-free copper pipe - Google Patents
The manufacture system and method for radio-frequency cable oxygen-free copper pipe Download PDFInfo
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- CN106903183A CN106903183A CN201710134055.5A CN201710134055A CN106903183A CN 106903183 A CN106903183 A CN 106903183A CN 201710134055 A CN201710134055 A CN 201710134055A CN 106903183 A CN106903183 A CN 106903183A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
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Abstract
The present invention provides a kind of manufacture system and method for radio-frequency cable oxygen-free copper pipe, manufacture system includes the horizontal casting unit, planetary rolling, joint drawing unit, plate drawing machine group, planer-type finishing rewinding machine and the bright annealing furnace that are sequentially provided with, and manufacture method includes step：Melting, rolling, continuously elongated, some passage drawings, finishing point disk and annealing.Production efficiency of the present invention is high, high degree of automation, and the copper pipe oxygen content of production is low, and recrystallization is complete, and conductance is high, stable performance.
Description
Technical field
The invention belongs to the preparing technical field of copper pipe, and in particular to a kind of manufacture system of radio-frequency cable oxygen-free copper pipe
And method.
Background technology
Radio-frequency cable be transmit radio-frequency region in electromagnetic energy cable, radio-frequency cable be various radio communications systems and
Indispensable element in electronic equipment, it is wide at the aspect such as radio communication and broadcast, TV, radar, navigation, computer and instrument
General application.Copper pipe is one kind of nonferrous metal tube, is the seamless pipe suppressed and draw, and copper pipe possesses firm, corrosion-resistant, conduction
Etc. characteristic, can be used to prepare radio-frequency cable.
Existing radio-frequency cable oxygen-free copper pipe generally uses up-drawing method production technology, and technological process is：Continuous up-casting, sawing
Head processed, duo mill rolling, sawing head, multi-pass stretching, multi-pass disk draws and contracting disk.The radio frequency electrical of process production
Though cable copper pipe can control oxygen content, up casting mode to be inevitably present gas hole defect, and in following process
There is no recrystallization process, it is impossible to eliminate defect, grain structure is loose, in posterior drawing processing, defect is amplified and becomes linear splitting
Line bar, has a strong impact on the application of copper pipe, and this process using artificial contracting disk, and automaticity is not high, low production efficiency, into
Product rate is low, and single branch finished weight is confined to 40kg or so, and follow-up finished product application is inconvenient.
The preparation method (Authorization Notice No. is CN 102605192B) of patent of invention oxygen-free copper tube for magnetron, preparation side
Method is comprised the following steps that：Step one, melting：Cu-CATH-1 has been placed in core line frequency furnace, furnace temperature fusing has been risen
Into copper liquid, mass fraction is added to be 0.010%~0.016% lanthanum, and keep 1170 DEG C ± 10 DEG C of copper liquid temperature, copper liquid surface
Covering charcoal layer, charcoal layer thickness is 100-120mm, and charcoal granularity is 40-60mm；Step 2, continuous up-casting；Step 3, essence
It is close cold rolling；Step 4, recrystallization；Step 5, cold drawn forming；Step 6, finishing.Copper pipe conduction prepared by the invention is excellent,
High yield rate, metal loss are few, but continuous up-casting has gas hole defect, and its annealing recrystallization mode is recrystallized not exclusively, brilliant
Grain tissue looseness, in posterior drawing processing, defect is amplified and becomes linear flaws bar, has a strong impact on product quality.
Therefore it is badly in need of that a kind of production efficiency is high, high degree of automation, the copper pipe oxygen content of production is low, recrystallization is complete, leads
Electric rate is high, the manufacture system and method for the radio-frequency cable oxygen-free copper pipe of stable performance.
The content of the invention
The purpose of the present invention is directed to the deficiency of existing radio-frequency cable oxygen-free copper pipe manufacture system and method, there is provided a kind of
Production efficiency is high, high degree of automation, and the copper pipe oxygen content of production is low, and recrystallization is complete, and conductance is high, the radio frequency of stable performance
The manufacture system and method for cable oxygen-free copper pipe.
The invention provides following technical scheme：
The manufacture system of radio-frequency cable oxygen-free copper pipe, including：
Horizontal casting unit, the horizontal casting unit includes melting furnace and holding furnace, the melting furnace and the insulation
Furnace bottom is connected by undercurrent groove, and the holding furnace is provided with crystallizer die；
Planetary rolling, located at the downstream of the horizontal casting unit, the planetary rolling is three roller rows to the planetary rolling
Star milling train；
Joint drawing unit, the joint drawbench is mounted on the planetary rolling downstream, and the joint drawing unit sets
There are three road drawing dies；
Plate drawing machine group, the plate drawing machine is mounted on the joint drawing unit downstream；
Planer-type finishing rewinding machine, the planer-type finishing rewinding machine is located at the plate drawing machine group downstream；
Bright annealing furnace, the bright annealing furnace is located at the planer-type finishing rewinding machine downstream, the bright annealing furnace
It is bright well annealing furnace.
The manufacture method of radio-frequency cable oxygen-free copper pipe, comprises the following steps：
S1：Melting, high-purity electrolytic copper plate is put into the melting furnace of horizontal casting unit, is melted by electromagnetic induction heating
Change, melting furnace copper liquid surface covering charcoal isolation air, melting furnace copper liquid enters holding furnace, holding furnace copper liquid table by undercurrent groove
Face covers graphite phosphorus sheet, and further deoxidation impurity elimination is made heavy gauge tube base finally by crystallizer die；
S2：The heavy gauge tube base that will be cast out in step S1 is rolled by three-roller planetary rolling mill, and the pipe of big specification is made
Middle specification pipe；
S3：The middle specification pipe that will be obtained in step S2 puts into joint drawing unit, using three road die drawns, by middle rule
Lattice pipe is continuously elongated to small dimension pipe；
S4：The speed of plate drawing machine is controlled by each passage sizing reduction of reasonable disposition, by some passage drawings, can be by step
Small dimension pipe in S3 is made the coil pipe of required specification；
S5：The coil pipe of output in step S4 is carried out into vertical after-combustion by planer-type finishing rewinding machine, finishing point disk is completed；
S6：Coil pipe after finishing in step S5 point disk is loaded into bright well annealing furnace carries out surface-brightening annealing.
Preferably, in the step S1 melting furnace temperature control at 1120-1200 DEG C, holding furnace temperature control is in 1150-
Between 1180 DEG C, the temperature range ensure that the thawing completely of electrolytic copper plate, and be conducive to the reduction of oxygen content in copper liquid.
Preferably, it is 700-800 DEG C internal temperature to be rolled in the step S2, and the rolling temperature of the scope can be realized
70% aximal deformation value processing, it is ensured that copper recrystallization is complete, and the internal flaw of step S1 fusion process generation is completely eliminated, and is
Posterior drawing provides quality assurance.
Preferably, first stretching uses surface accuracy drawing die high in the step S3, it is possible to increase the table of copper pipe
Face smoothness and quality.
Preferably, in the step S4 casting speed control of plate drawing machine at 550-670 ms/min, the pulling rate scope can be real
Existing high-speed stretch, may be manufactured without the coil pipe of same specification after a few passage drawings.
Preferably, the annealing temperature control of the step S6 is at 380-500 DEG C, annealing process inflated with nitrogen and hydrogen, can
Protect copper pipe surface not aoxidize, realize that surface-brightening is annealed.
The beneficial effects of the invention are as follows：
(1) the manufacture system flow of the radio-frequency cable oxygen-free copper pipe that the present invention is provided is short, high degree of automation.
(2) present invention covers charcoal by melting furnace in horizontal casting unit and holding furnace covers graphite phosphorus sheet, secondary to remove
Oxygen impurity elimination, reduces oxygen content, reaches pure oxygen copper standard high, and conductance is high.
(3) present invention realizes perfect recrystallization using the big modification amount rolling of three-roller planetary rolling mill, eliminates casting process and produces
The casting flaw such as stomata, solve and traditionally draw continuous casting radio-frequency cable copper pipe without recrystallization technique, final product quality is poor
Problem.
(4) present invention realizes automation gantry finishing after-combustion contracting disk, and efficiency high, single branch contracting disk quality is big, is conventionally manufactured
12-15 times of method list branch final product quality.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with reality of the invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the composition schematic diagram of radio-frequency cable oxygen-free copper pipe manufacture system in the present invention.
Specific embodiment
As shown in figure 1, the manufacture system of radio-frequency cable oxygen-free copper pipe, including the horizontal casting unit, OK being sequentially provided with
Star milling train, joint drawing unit, plate drawing machine group, planer-type finishing rewinding machine and bright annealing furnace.
In the present invention, horizontal casting unit includes melting furnace and holding furnace, and the melting furnace and the insulation furnace bottom are logical
Cross undercurrent groove to be connected, the holding furnace is provided with crystallizer die.
In the present invention, planetary rolling is three-roller planetary rolling mill.
In the present invention, joint drawing unit is provided with three road drawing dies.
In the present invention, bright annealing furnace is bright well annealing furnace.
Embodiment 1
The manufacture method of radio-frequency cable oxygen-free copper pipe, comprises the following steps：
S1：Melting, high-purity electrolytic copper plate is put into the melting furnace of horizontal casting unit, is melted by electromagnetic induction heating
Change, melting furnace copper liquid surface covering charcoal isolation air, melting furnace copper liquid enters holding furnace, holding furnace copper liquid table by undercurrent groove
Face covers graphite phosphorus sheet, and, at 1120 DEG C, holding furnace temperature control is 1180 for further deoxidation impurity elimination, wherein melting furnace temperature control
DEG C, it is made heavy gauge tube base finally by crystallizer die；
S2：The heavy gauge tube base that will be cast out in step S1 is rolled by three-roller planetary rolling mill, and the internal temperature of rolling is 700
DEG C, the pipe of big specification is made middle specification pipe；
S3：The middle specification pipe that will be obtained in step S2 puts into joint drawing unit, using three road die drawns, wherein the
Stretching together uses surface accuracy drawing die high, and middle specification pipe is stretched into small dimension pipe eventually through continuously elongated；
S4：The speed that plate drawing machine is controlled by each passage sizing reduction of reasonable disposition is 550 ms/min, by some passages
Drawing, the small dimension pipe in step S3 can be made the coil pipe of required specification；
S5：The coil pipe of output in step S4 is carried out into vertical after-combustion by planer-type finishing rewinding machine, finishing point disk is completed；
S6：Coil pipe after finishing in step S5 point disk is loaded into bright well annealing furnace carries out surface-brightening annealing, anneals
Temperature control is at 380 DEG C, you can obtain radio-frequency cable oxygen-free copper pipe.
Embodiment 2
The manufacture method of radio-frequency cable oxygen-free copper pipe, comprises the following steps：
S1：Melting, high-purity electrolytic copper plate is put into the melting furnace of horizontal casting unit, is melted by electromagnetic induction heating
Change, melting furnace copper liquid surface covering charcoal isolation air, melting furnace copper liquid enters holding furnace, holding furnace copper liquid table by undercurrent groove
Face covers graphite phosphorus sheet, and, at 1150 DEG C, holding furnace temperature control is 1160 for further deoxidation impurity elimination, wherein melting furnace temperature control
DEG C, it is made heavy gauge tube base finally by crystallizer die；
S2：The heavy gauge tube base that will be cast out in step S1 is rolled by three-roller planetary rolling mill, and the internal temperature of rolling is 750
DEG C, the pipe of big specification is made middle specification pipe；
S3：The middle specification pipe that will be obtained in step S2 puts into joint drawing unit, using three road die drawns, wherein the
Stretching together uses surface accuracy drawing die high, and middle specification pipe is stretched into small dimension pipe eventually through continuously elongated；
S4：The speed that plate drawing machine is controlled by each passage sizing reduction of reasonable disposition is 600 ms/min, by some passages
Drawing, the small dimension pipe in step S3 can be made the coil pipe of required specification；
S5：The coil pipe of output in step S4 is carried out into vertical after-combustion by planer-type finishing rewinding machine, finishing point disk is completed；
S6：Coil pipe after finishing in step S5 point disk is loaded into bright well annealing furnace carries out surface-brightening annealing, anneals
Temperature control is at 500 DEG C, you can obtain radio-frequency cable oxygen-free copper pipe.
Embodiment 3
The manufacture method of radio-frequency cable oxygen-free copper pipe, comprises the following steps：
S1：Melting, high-purity electrolytic copper plate is put into the melting furnace of horizontal casting unit, is melted by electromagnetic induction heating
Change, melting furnace copper liquid surface covering charcoal isolation air, melting furnace copper liquid enters holding furnace, holding furnace copper liquid table by undercurrent groove
Face covers graphite phosphorus sheet, and, at 1200 DEG C, holding furnace temperature control is 1150 for further deoxidation impurity elimination, wherein melting furnace temperature control
DEG C, it is made heavy gauge tube base finally by crystallizer die；
S2：The heavy gauge tube base that will be cast out in step S1 is rolled by three-roller planetary rolling mill, and the internal temperature of rolling is
7800 DEG C, the pipe of big specification is made middle specification pipe；
S3：The middle specification pipe that will be obtained in step S2 puts into joint drawing unit, using three road die drawns, wherein the
Stretching together uses surface accuracy drawing die high, and middle specification pipe is stretched into small dimension pipe eventually through continuously elongated；
S4：The speed that plate drawing machine is controlled by each passage sizing reduction of reasonable disposition is 670 ms/min, by some passages
Drawing, the small dimension pipe in step S3 can be made the coil pipe of required specification；
S5：The coil pipe of output in step S4 is carried out into vertical after-combustion by planer-type finishing rewinding machine, finishing point disk is completed；
S6：Coil pipe after finishing in step S5 point disk is loaded into bright well annealing furnace carries out surface-brightening annealing, anneals
Temperature control is at 450 DEG C, you can obtain radio-frequency cable oxygen-free copper pipe.
Table 1 is the performance detection table of the radio-frequency cable oxygen-free copper pipe that traditional upward-casting process and embodiment 1-3 are obtained.
Table 1
From data in table 1, the radio-frequency cable prepared by embodiment of the present invention 1-3 is controllable with oxygen-free copper pipe oxygen content
Within 10ppm, pure oxygen copper standard high is reached, conductance >=97%IACS, single branch contracting disk quality is big, is classical production process list
12-15 times of branch final product quality.
Production efficiency of the present invention is high, high degree of automation, and the copper pipe oxygen content of production is low, and recrystallization is complete, and conductance is high,
Stable performance.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, although with reference to foregoing reality
Apply example to be described in detail the present invention, for a person skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic.It is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (7)
1. the manufacture system of radio-frequency cable oxygen-free copper pipe, it is characterised in that including：
Horizontal casting unit, the horizontal casting unit includes melting furnace and holding furnace, the melting furnace and the holding furnace bottom
Portion is connected by undercurrent groove, and the holding furnace is provided with crystallizer die；
Planetary rolling, the planetary rolling rolls located at the downstream of the horizontal casting unit, the planetary rolling for three-roller planetary
Machine；
Joint drawing unit, the joint drawbench is mounted on the planetary rolling downstream, and the joint drawing unit is provided with three
Road drawing die；
Plate drawing machine group, the plate drawing machine is mounted on the joint drawing unit downstream；
Planer-type finishing rewinding machine, the planer-type finishing rewinding machine is located at the plate drawing machine group downstream；
Bright annealing furnace, the bright annealing furnace is located at the planer-type finishing rewinding machine downstream, and the bright annealing furnace is light
Bright well annealing furnace.
2. the manufacture method of radio-frequency cable oxygen-free copper pipe, it is characterised in that comprise the following steps：
S1：Melting, high-purity electrolytic copper plate is put into the melting furnace of horizontal casting unit, is melted by electromagnetic induction heating,
Melting furnace copper liquid surface covering charcoal isolation air, melting furnace copper liquid enters holding furnace, holding furnace copper liquid surface by undercurrent groove
Covering graphite phosphorus sheet, further deoxidation impurity elimination is made heavy gauge tube base finally by crystallizer die；
S2：The heavy gauge tube base that will be cast out in step S1 is rolled by three-roller planetary rolling mill, and the pipe of big specification is made into middle rule
Lattice pipe；
S3：The middle specification pipe that will be obtained in step S2 puts into joint drawing unit, using three road die drawns, by middle specification pipe
Base is continuously elongated to small dimension pipe；
S4：The speed of plate drawing machine is controlled by each passage sizing reduction of reasonable disposition, by some passage drawings, can be by step S3
Small dimension pipe be made the coil pipe of required specification；
S5：The coil pipe of output in step S4 is carried out into vertical after-combustion by planer-type finishing rewinding machine, finishing point disk is completed；
S6：Coil pipe after finishing in step S5 point disk is loaded into bright well annealing furnace carries out surface-brightening annealing.
3. the manufacture method of radio-frequency cable oxygen-free copper pipe according to claim 2, it is characterised in that in the step S1
, at 1120-1200 DEG C, holding furnace temperature control is between 1150-1180 DEG C for melting furnace temperature control.
4. the manufacture method of radio-frequency cable oxygen-free copper pipe according to claim 2, it is characterised in that in the step S2
Rolling temperature is 700-800 DEG C.
5. the manufacture method of radio-frequency cable oxygen-free copper pipe according to claim 2, it is characterised in that in the step S3
First stretching uses surface accuracy drawing die high.
6. the manufacture method of radio-frequency cable oxygen-free copper pipe according to claim 2, it is characterised in that in the step S4
The casting speed control of plate drawing machine is at 550-670 ms/min.
7. the manufacture method of radio-frequency cable oxygen-free copper pipe according to claim 2, it is characterised in that the step S6's
Annealing temperature control at 380-500 DEG C, annealing process inflated with nitrogen and hydrogen.
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| CN201710134055.5A CN106903183A (en) | 2017-03-08 | 2017-03-08 | The manufacture system and method for radio-frequency cable oxygen-free copper pipe |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538186A (en) * | 2017-09-26 | 2018-01-05 | 中天合金技术有限公司 | A kind of production technology of up-drawing method thin-walled light copper pipe |
| CN107737890A (en) * | 2017-09-20 | 2018-02-27 | 中天合金技术有限公司 | A kind of preparation method of radio frequency coaxial-cable oxygen-free copper pipe |
| CN107738067A (en) * | 2017-09-13 | 2018-02-27 | 中天合金技术有限公司 | A kind of random length half-hard state copper pipe bus production technology |
| CN110814069A (en) * | 2019-11-18 | 2020-02-21 | 龙口市龙蓬精密铜管有限公司 | Production method of semi-hard copper straight pipe and drawing die thereof |
| CN111283012A (en) * | 2020-03-06 | 2020-06-16 | 常州九洲创胜特种铜业有限公司 | Coil drawing forming process of rectangular copper pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107738067A (en) * | 2017-09-13 | 2018-02-27 | 中天合金技术有限公司 | A kind of random length half-hard state copper pipe bus production technology |
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| CN110814069A (en) * | 2019-11-18 | 2020-02-21 | 龙口市龙蓬精密铜管有限公司 | Production method of semi-hard copper straight pipe and drawing die thereof |
| CN111283012A (en) * | 2020-03-06 | 2020-06-16 | 常州九洲创胜特种铜业有限公司 | Coil drawing forming process of rectangular copper pipe |
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