CN107785122B - A kind of preparation process of seamless Through ground wire - Google Patents
A kind of preparation process of seamless Through ground wire Download PDFInfo
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- CN107785122B CN107785122B CN201710849224.3A CN201710849224A CN107785122B CN 107785122 B CN107785122 B CN 107785122B CN 201710849224 A CN201710849224 A CN 201710849224A CN 107785122 B CN107785122 B CN 107785122B
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- cable core
- brass tube
- ground wire
- hoist engine
- roll
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/004—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing rigid-tube cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/224—Sheathing; Armouring; Screening; Applying other protective layers by drawing a cable core into an oversized tube by means of a tow line
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/227—Pretreatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/228—After-treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
- H01B13/245—Sheathing; Armouring; Screening; Applying other protective layers by extrusion of metal layers
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Metal Rolling (AREA)
Abstract
A kind of preparation process of disclosed seamless Through ground wire includes the following steps: that cable core → rolling → annealing → post-processing is aligned → worn to sheath.A kind of preparation process of seamless Through ground wire provided by the invention reduces outer diameter sheath using the technique of rolling, and not only equipment area occupied is small, and it can be to avoid breakage problem caused by drawing process, and compared to loudspeaker technique, higher speed is may be implemented in rolling, improves processing efficiency.
Description
Technical field
The present invention relates to a kind of cleaning process of copper strips more particularly to a kind of preparation processes of seamless Through ground wire.
Background technique
Railway run-through ground line be it is a kind of by the traction power supply return system of Along Railway, power supply system, signal system,
Communication and other electronic informations, building, railway roadbed, platform, bridge, tunnel, sound barrier etc. are connected what unification was grounded
Cable, it can be such that each operating point earthing potential of large-scale Railway Electric system is consistent substantially, connect system equipment
Ground is safe and reliable, eliminates the out-of-balance current due to caused by the potential difference between distinct device, realizes to personnel and equipment
Effective reliable protection.
Currently, classifying according to Through ground wire jacket material, the Through ground wire product master of actual use has been put into
Will there are four types of: sheath copper Through ground wire, aluminum alloy sheath railway run-through ground line, conductive high polymer sheath run-through ground wire, brass shield
Cover Through ground wire.Wherein first three sheath has all been eliminated, its sheath of brass sheath run-through ground wire is brass material, compares therewith
Three kinds of preceding Through ground wires, its sheath of this Through ground wire is the most environmentally friendly, and conductive discharge capacity is far by force and first three.But it is protected
Set production technology is coated using brass band and is welded, so causing the situation of sheath internal stress unevenness, there are sheaths to open
The hidden danger split.And the oversheath of seamless type can be good at solving the problems, such as internal force unevenness, and sheath is avoided to crack.
The production technology of joint drawing is generallyd use in industry at this stage, but on the one hand secondary technique combines drawbench power
Greatly, volume is big, land occupation side and very power-consuming, and another aspect joint drawing production needs simultaneously by three even more moulds
Tool, Guo Sandao mold, production and processing rate is big, is easily broken off, excessively more moulds, and production efficiency is again too low.So seamless perforation ground
Line product can not form production capacity in industry.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation processes of seamless Through ground wire, reduce sheath using the technique of rolling
Outer diameter, not only equipment area occupied is small, and can to avoid breakage problem caused by drawing process, and compared to loudspeaker technique,
Higher speed may be implemented in rolling, improves processing efficiency.
The technical solution of the present invention is as follows: a kind of preparation process of seamless Through ground wire, specifically comprises the following steps:
A, sheath align: disk draw after brass tube by straightener progress straightening operation, straightener with 20m/min speed into
Row aligning, while copper pipe straight and there is not flat pipe during ensuring to rescue, the brass tube after aligning passes through aligns wheel progress
Secondary aligning sizing, two aligns wheels are the arrangement mode of laterally 3 groups of 3 groups of longitudinal directions, and are equally turned with the speed of 20m/min
It is dynamic；
B, it wears cable core: the cable core of copper stranded conductor formation is penetrated to the brass tube of aligning by hoist engine, wear guarantor during cable core
Card cable core is not bent, not loose stock, and penetrates end and extends brass tube 8m, after the completion of cable core penetrates, will stretch out brass pipe portion
Point cable core first penetrate in rolling equipment because internal diameter of copper pipe is far longer than conductor assembly outer diameter, if do not penetrated cable core is existing,
It will appear the case where cable core does not follow up when copper pipe is rolled in milling train, this situation will cause finished product boring, so must
Cable core must first be penetrated in milling train, enter milling train as gradually becoming smaller for internal diameter can pass through sizing slowly close to cable core in copper pipe
Sheath is mutually close to cable core after mold, and cable core will move ahead together with sheath at this time；
C, roll: base area line gauge lattice are put down by the roll parts on milling train or all, and are installed in roll exit position
Stand motor initial rate is adjusted to 5%, opens emulsion and cooled down, manually send brass tube to milling train by sizing die
Enter to roll mouth and be rolled, when brass tube moves ahead automatically under the extruding force of roll, adjustment motor speed rises to 8%, rolls
Brass tube surface quality is observed in journey, it is ensured that brass pipe surface impulse- free robustness and overlap, before brass tube end reaches sizing die
The column operation of stopping machine, is run to brass tube using Manual Mode and penetrates sizing die, be again started up roll and adjust motor speed
To 15%, the ground wire that sizing die comes out carries out surface clean by rinse bath, and traction to vertical take-up stand is wound, and
Often ground wire head is introduced by hand after through the 4th contact roller and is received around once enclosing through a contact roller compression in winding
Wire frame carries out automatic takeup, and motor speed is promoted to 30% at this time；
D, be heat-treated: the Through ground wire for rolling completion, which is sent into bell type annealing furnace, carries out annealing recrystallization, controls annealing furnace
Interior temperature is 465 DEG C, while keeping the temperature 4 hours, 7 hours cooling, is come out of the stove when in-furnace temperature is down to 65 DEG C；
E, it post-processes after-combustion: needing to carry out pickling to Through ground wire surface after the completion of annealing, remove the black dirt on surface,
Passivation is sprayed simultaneously, guarantees the corrosion resistance on Through ground wire surface, and is carried out after-combustion and operated to form finished product.
The specific steps for wearing cable core of the step b are as follows:
B1, in brass tube one end, set loads onto air-blowing connector, and steel wire rope of windlass is connected to air-blowing connector, and air-blowing is connect
Head connection compressed air hose, while starting compressed air valve and hoist engine unwrapping wire button, using air-blowing threading method by hoist engine
Wirerope penetrates in copper pipe, and wirerope can be in exceptionally straight state after opening air valve, at this time adjusts hoist engine speed to maximum；
B2, stop unwrapping wire when wirerope is worn to the brass tube other end, then using snak link by cable core and steel wire rope head
Portion is fixed, and withdraws wirerope by pressing hoist engine take-up button, so that cable core penetrates in brass tube, opens hoist engine for elevator
The speed of machine is adjusted to 10m/min, enters in copper pipe to cable core head, hoist engine speed is slowly improved, by 10-15-20-30m/
The set-up procedure of min, gradually adjusts；
B3, cable core reach brass tube end when, remove air-blowing connector, reduce rolling speed until cable core be drawn out copper pipe
Stop winding afterwards, unlocks the connection of wirerope and cable core, cable core is pulled out into 8m manually.
The preparation process of disclosed seamless Through ground wire, process route be threading, rolling, bell-type annealing and
After-combustion, compared to conventional threading, drawing, online annealing and after-combustion, we have been selected mill operation to substitute drawing, have been moved back using bell-type
Fire substitution online annealing, for mill operation, not only occupied area is small for used milling train, can flexibly put outside, roll
The power consumption of machine low energy consumption total equipment is about 130Kw, it is often more important that, mill operation is using 26 groups of rolls progress brass tubes
Tube reducing and extension are reduced per working modulus together by increasing passage, to reduce the possibility for even preventing disconnected pipe, are rolled simultaneously
Operation is low to the requirement of brass tube roundness, is being that can make its gradually rounding by roll rolling even if brass tube is not rounded, this
A is that drawing is unexistent, and drawing, which is operated, requires height to the roundness of brass tube, and the sheath of drawing is caused to occur if not rounded
It is flat flat and disconnected pipe is caused to occur.
For annealing operation, because being to carry out thermal cycle using thermal circulation fan in process of bell type annealing, ensure that in furnace
The consistency of each regional temperature, so the innermost layer or outermost layer of either material frame are attained by same annealing effect,
So product uniformity is good, and bell-type concentrate return goods can time saving province's point, it is energy saving.
The utility model has the advantages that a kind of preparation process of disclosed seamless Through ground wire, has the following beneficial effects: and rolls
Control equipment is small compared to drawing equipment occupied area, and reduces the working modulus of per pass rolling by multiple tracks rolling wheel, avoids drawing
Pull out the crack conditions that technique will appear；Compared to drawing process, higher mill speed is may be implemented in rolling mill practice, and rolls work
Skill does not need to carry out die change, reduces the lead-time, greatly improves production efficiency.
Specific embodiment
Below in conjunction with specific embodiment, clear, complete description is carried out to technical solution of the present invention.
A kind of preparation process of disclosed seamless Through ground wire, specifically comprises the following steps:
A, sheath is aligned: the brass tube after disk is drawn carries out straightening operation by straightener, and straightener is with 20m/min speed
It is aligned, while ensuring that copper pipe is straight in straightening process and flat pipe do not occur, the brass tube after aligning is carried out across aligns wheel
Secondary aligning sizing, two aligns wheels are the arrangement mode of laterally 3 groups of 3 groups of longitudinal directions, and are equally turned with the speed of 20m/min
It is dynamic；
B, it wears cable core: the cable core of copper stranded conductor formation being penetrated to the brass tube of aligning by hoist engine, penetrates completion to cable core
Afterwards, and the cable core that would extend out penetrates in milling train in advance, and specifically wearing cable process is；
B1, in brass tube one end, set loads onto air-blowing connector, and steel wire rope of windlass is connected to air-blowing connector, and air-blowing is connect
Head connection compressed air hose, while starting compressed air valve and hoist engine unwrapping wire button, using air-blowing threading method by hoist engine
Wirerope penetrates in copper pipe, and wirerope can be in exceptionally straight state after opening air valve, at this time adjusts hoist engine speed to maximum；
B2, stop unwrapping wire when wirerope is worn to the brass tube other end, then using snak link by cable core and steel wire rope head
Portion is fixed, and withdraws wirerope by pressing hoist engine take-up button, so that cable core penetrates in brass tube, opens hoist engine for elevator
The speed of machine is adjusted to 10m/min, enters in copper pipe to cable core head, hoist engine speed is slowly improved, by 10-15-20-30m/
The set-up procedure of min, gradually adjusts；
B3, cable core reach brass tube end when, remove air-blowing connector, reduce rolling speed until cable core be drawn out copper pipe
Stop winding afterwards, unlocks the connection of wirerope and cable core, cable core is pulled out into 8m manually；
C, roll: base area line gauge lattice are put down by the roll parts on milling train or all, and are installed in roll exit position
Stand motor initial rate is adjusted to 5%, opens emulsion and cooled down, manually send brass tube to milling train by sizing die
Enter to roll mouth and be rolled, when brass tube moves ahead automatically under the extruding force of roll, adjustment motor speed rises to 8%, rolls
Brass tube surface quality is observed in journey, it is ensured that brass pipe surface impulse- free robustness and overlap, before brass tube end reaches sizing die
The column operation of stopping machine, is run to brass tube using Manual Mode and penetrates sizing die, be again started up roll and adjust motor speed
To 15%, the ground wire that sizing die comes out carries out surface clean by rinse bath, and traction to vertical take-up stand is wound, and
Often ground wire head is introduced by hand after through the 4th contact roller and is received around once enclosing through a contact roller compression in winding
Wire frame carries out automatic takeup, and motor speed is promoted to 30% at this time；
D, be heat-treated: the Through ground wire for rolling completion, which is sent into bell type annealing furnace, carries out annealing recrystallization, controls annealing furnace
Interior temperature is 465 DEG C, while keeping the temperature 4 hours, 7 hours cooling, is come out of the stove when in-furnace temperature is down to 65 DEG C；
E, it post-processes after-combustion: needing to carry out pickling to Through ground wire surface after the completion of annealing, remove the black dirt on surface,
Passivation is sprayed simultaneously, guarantees the corrosion resistance on Through ground wire surface, and is carried out after-combustion and operated to form finished product.
Step-by-step procedures is carried out with the brass tube rolling of S-DH35 specification for step c:
All rolls of milling train need to all be depressed when rolling S-DH35 specification, and be installed No. 26 roll exit positions
Sizing die；
Then the brass tube for being installed with cable core is sent into milling train, by equipment motor speed adjust to 5%, opens emulsification liquid cooling
But, start button is pressed, copper pipe is sent into after roll rotation and rolls mouth, is rolled until roll stress brass tube moves ahead automatically,
Motor speed is promoted to 8% at this time, brass tube all needs concern copper pipe surface quality when passing through every group of roll during advancing,
Ensure copper pipe surface there is not allowed that the case where burr and overlap, since the process of rolling is that brass tube has and becomes smaller while extending greatly
One process, and the reduction of size is realized by roll intermediate groove, the size of each roll upper groove is also equally by big
To small；
Stop machine column when brass tube reaches in front of sizing die, run using Manual Mode, to cable core and in Huang
After copper pipe penetrates sizing die jointly, equipment start button is opened, is 15% by speed adjust；
The Through ground wire that artificial traction rolls out opens cleaning agent over the ground after ground wire passes through rinse bath by rinse bath
Line surface is cleared up；
When ground wire reaches inverted take-up stand, Pneumatic pressure bearing up pulley is opened, the race that ground wire passes through Pneumatic pressure bearing up pulley is coiled
On take-up pulley, after ground wire passes through first compression race, first compression race is depressed, often runs past one around a circle
Ground wire head is introduced in take-up frame by hand after through the 4th contact roller, starts automatic takeup, improve at this time whole by contact roller
Machine motor speed is to 30%；
During Through ground wire rolls, cable core is carried out using the method for passive unwrapping wire, by the observation of meter counter,
Cable core length cuts cable core when reaching 1.5 kilometers, and complete machine rate is promoted to 60% at this time.
Above an embodiment of the invention is described in detail, but the content is only the invention
Preferred embodiment should not be considered as limiting the invention the practical range of creation.It is all to be made according to the invention application range
All the changes and improvements etc., belong within the patent covering scope of the invention.
Claims (2)
1. a kind of preparation process of seamless Through ground wire, it is characterised in that include the following steps:
A, sheath is aligned: the brass tube after disk is drawn carries out straightening operation by straightener, and straightener is with the progress of 20m/min speed
Aligning, while ensuring that copper pipe is straight in straightening process and flat pipe do not occur, it is secondary that the brass tube after aligning passes through aligns wheel progress
Aligning sizing, two aligns wheels are the arrangement mode of laterally 3 groups of 3 groups of longitudinal directions, and are equally rotated with the speed of 20m/min；
B, it wears cable core: the cable core of copper stranded conductor formation is penetrated to the brass tube of aligning by hoist engine, wear cable core and guarantee cable in the process
Core is not bent, not loose stock, and penetrates end and extend brass tube 8m, and after the completion of cable core penetrates, the cable core that would extend out is leading
It penetrates in milling train；
C, roll: base area line gauge lattice are put down by the roll parts on milling train or all, and install sizing in roll exit position
Stand motor initial rate is adjusted to 5%, opens emulsion and cooled down, send to milling train to enter to roll by brass tube manually by mold
It mouthful is rolled, when brass tube moves ahead automatically under the extruding force of roll, adjustment motor speed rises to 8%, in the operation of rolling
Observe brass tube surface quality, it is ensured that brass pipe surface impulse- free robustness and overlap stop before brass tube end reaches sizing die
Machine column operation, is run to brass tube using Manual Mode and penetrates sizing die, be again started up roll and adjust motor speed extremely
15%, the ground wire that sizing die comes out carries out surface clean by rinse bath, and draws to vertical take-up stand and wound, and
Ground wire head is often introduced into take-up by hand after through the 4th contact roller around once enclosing through a contact roller compression when winding
Frame carries out automatic takeup, and motor speed is promoted to 30% at this time；
D, be heat-treated: the Through ground wire for rolling completion, which is sent into bell type annealing furnace, carries out annealing recrystallization, controls temperature in annealing furnace
Degree is 465 DEG C, while keeping the temperature 4 hours, 7 hours cooling, is come out of the stove when in-furnace temperature is down to 65 DEG C；
E, it post-processes after-combustion: needing to carry out pickling to Through ground wire surface after the completion of annealing, remove the black dirt on surface, simultaneously
Spray passivation, guarantees the corrosion resistance on Through ground wire surface, and carries out after-combustion and operate to form finished product.
2. the preparation process of seamless Through ground wire according to claim 1, it is characterised in that: the step b's wears cable core
Specific steps are as follows:
B1, in brass tube one end, set loads onto air-blowing connector, and steel wire rope of windlass is connected to air-blowing connector, and air-blowing connector is connected
Compressed air hose is connect, while starting compressed air valve and hoist engine unwrapping wire button, using air-blowing threading method by hoist engine steel wire
Rope penetrates in copper pipe, and wirerope can be in exceptionally straight state after opening air valve, at this time adjusts hoist engine speed to maximum；
B2, stop unwrapping wire when wirerope is worn to the brass tube other end, then consolidated cable core and head of steel wire rope using snak link
It is fixed, wirerope is withdrawn by pressing hoist engine take-up button, so that cable core penetrates in brass tube, opens hoist engine for hoist engine
Speed is adjusted to 10m/min, enters in copper pipe to cable core head, hoist engine speed is slowly improved, by 10-15-20-30m/min
Set-up procedure, gradually adjust；
B3, cable core reach brass tube end when, remove air-blowing connector, reduce rolling speed until cable core be drawn out copper pipe after stop
It only winds, unlocks the connection of wirerope and cable core, cable core is pulled out into 8m manually.
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| CN201710849224.3A CN107785122B (en) | 2017-09-20 | 2017-09-20 | A kind of preparation process of seamless Through ground wire |
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| CN201710849224.3A CN107785122B (en) | 2017-09-20 | 2017-09-20 | A kind of preparation process of seamless Through ground wire |
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| CN107785122B true CN107785122B (en) | 2019-08-13 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109637741A (en) * | 2018-11-06 | 2019-04-16 | 通鼎互联信息股份有限公司 | A kind of seamless Through ground wire production technology of railway |
| CN110230063B (en) * | 2019-07-16 | 2023-12-26 | 济南瑞通铁路电务有限责任公司 | Annealing passivation production line for high-speed railway through ground wire |
| CN111029038B (en) * | 2019-11-28 | 2021-05-04 | 上海安捷防火智能电缆有限公司 | Production process of alloy ground wire |
| CN112139241B (en) * | 2020-08-17 | 2022-08-09 | 浙江华甸防雷科技股份有限公司 | Multi-pass extrusion preparation method of bendable flexible zinc-coated steel lightning protection grounding wire |
| CN113823435B (en) * | 2021-09-08 | 2024-04-23 | 湖州金钛导体技术有限公司 | Composite electrode wire, preparation method and application thereof |
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| CN102284842A (en) * | 2011-07-29 | 2011-12-21 | 赤峰京铜铜业有限公司 | Processing technology for producing brass strip with special section |
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| JPH02270226A (en) * | 1989-01-28 | 1990-11-05 | City Electrical Factors Ltd | Method and apparatus for manufacture of mineral insulated cable and mineral insulated cable manufactured by the method and apparatus |
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| CN103337294A (en) * | 2013-06-06 | 2013-10-02 | 江阴新华宏铜业有限公司 | Railway through ground wire and preparation process thereof |
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| CN107785122A (en) | 2018-03-09 |
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