CN107785122B - A kind of preparation process of seamless Through ground wire - Google Patents

A kind of preparation process of seamless Through ground wire Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
cable core
brass tube
ground wire
hoist engine
roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710849224.3A
Other languages
Chinese (zh)
Other versions
CN107785122A (en
Inventor
李晔
陈爱华
王英华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHONGTIAN ALLOY TECHNOLOGY Co Ltd
Original Assignee
ZHONGTIAN ALLOY TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHONGTIAN ALLOY TECHNOLOGY Co Ltd filed Critical ZHONGTIAN ALLOY TECHNOLOGY Co Ltd
Priority to CN201710849224.3A priority Critical patent/CN107785122B/en
Publication of CN107785122A publication Critical patent/CN107785122A/en
Application granted granted Critical
Publication of CN107785122B publication Critical patent/CN107785122B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0016Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/004Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing rigid-tube cables
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/224Sheathing; Armouring; Screening; Applying other protective layers by drawing a cable core into an oversized tube by means of a tow line
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/227Pretreatment
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/228After-treatment
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • H01B13/245Sheathing; Armouring; Screening; Applying other protective layers by extrusion of metal layers

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

A kind of preparation process of seamless Through ground wire
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.
CN201710849224.3A 2017-09-20 2017-09-20 A kind of preparation process of seamless Through ground wire Active CN107785122B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710849224.3A CN107785122B (en) 2017-09-20 2017-09-20 A kind of preparation process of seamless Through ground wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710849224.3A CN107785122B (en) 2017-09-20 2017-09-20 A kind of preparation process of seamless Through ground wire

Publications (2)

Publication Number Publication Date
CN107785122A CN107785122A (en) 2018-03-09
CN107785122B true CN107785122B (en) 2019-08-13

Family

ID=61437702

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710849224.3A Active CN107785122B (en) 2017-09-20 2017-09-20 A kind of preparation process of seamless Through ground wire

Country Status (1)

Country Link
CN (1) CN107785122B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN111029038A (en) * 2019-11-28 2020-04-17 上海安捷防火智能电缆有限公司 Production process of alloy ground wire

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02270226A (en) * 1989-01-28 1990-11-05 City Electrical Factors Ltd Mineral insulated cable and its manufacturing method and device
CN1862711A (en) * 2006-06-12 2006-11-15 周锡明 Novel cable and mfg. method
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
CN203490967U (en) * 2013-09-23 2014-03-19 江苏东强股份有限公司 Alloy sheath through ground wire special for railway signal system
CN104464901A (en) * 2013-09-23 2015-03-25 江苏东强股份有限公司 Special alloy-sheathed through earth wire for railway signal system and manufacturing method for special alloy-sheathed through earth wire
CN106448932A (en) * 2016-11-22 2017-02-22 湖南三泰新材料股份有限公司 Method for preparing copper-clad steel composite material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104726806A (en) * 2013-12-20 2015-06-24 青岛润鑫伟业科贸有限公司 Method used for preparing seamless aluminum brass tubes
CN105057352A (en) * 2015-07-22 2015-11-18 浙江业盛新型材料有限公司 Special technological method and device for rolling special strip for tape

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02270226A (en) * 1989-01-28 1990-11-05 City Electrical Factors Ltd Mineral insulated cable and its manufacturing method and device
CN1862711A (en) * 2006-06-12 2006-11-15 周锡明 Novel cable and mfg. method
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
CN203490967U (en) * 2013-09-23 2014-03-19 江苏东强股份有限公司 Alloy sheath through ground wire special for railway signal system
CN104464901A (en) * 2013-09-23 2015-03-25 江苏东强股份有限公司 Special alloy-sheathed through earth wire for railway signal system and manufacturing method for special alloy-sheathed through earth wire
CN106448932A (en) * 2016-11-22 2017-02-22 湖南三泰新材料股份有限公司 Method for preparing copper-clad steel composite material

Also Published As

Publication number Publication date
CN107785122A (en) 2018-03-09

Similar Documents

Publication Publication Date Title
KR101343464B1 (en) Process and plant for producing metal strip
CN203366855U (en) Wire harness roll production line and cable production line
RU2358820C2 (en) Method and device for providing of regulated distribution of tensile stresses, particularly in fringe regions of cold-rolled metallic strip
KR101358634B1 (en) Method for producing a hot-rolled steel strip and combined casting and rolling installation for carrying out the method
EP2710159B1 (en) Method and device for preparing steel milled goods before hot rolling
WO2010100968A1 (en) Plug, piercing rolling apparatus and method of manufacturing seamless tube using the same
KR20020053292A (en) Method And Device For Manufacturing A Hot Rolled Steel Strip
AU2009202178A1 (en) Method for descaling a metal strip
US20050039320A1 (en) Method and casting/rolling mill for producing steel strips
CN205011821U (en) High -quality ultra -thin hot -galvanize belted steel continuous production line
CN101745544B (en) Method for controlling transverse thickness difference of medium-low grade electrical steel
CN101380645B (en) Wire passing method of wire drawing machine
CN203991702U (en) Wire-drawing shape machine
CN101497165B (en) Method for processing bottom cross beam or bottom side beam of container and system for producing the same
CN103878173B (en) A kind of production method eliminating cold-reduced sheet surface chromatic aberration
US20040055352A1 (en) Method of continuous production of metal wires
CN102172835A (en) Cold metal plate strip cold continuous rolling production line and production method
CN107838199A (en) High strength band steel leveling rectifys technique
CN102174671B (en) Thermal treatment production line of high-strength stirrup
CN102310077B (en) Method for continuously reducing, rolling and compositing stainless steel/plain steel composite plate and device thereof
CN103241586B (en) Under shed telpher and cable installatition construction method
MX2013003214A (en) Cooling system for hot-rolled steel strip.
CN105478525B (en) A kind of manufacture method for the coiled tubing for including logging cable
CN104245170B (en) The manufacturing equipment of drilling/rolling top
JP2005342767A (en) Equipment for manufacturing hot-rolled steel sheet and method for manufacturing hot-rolled steel sheet

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant