CN104307915B - Production technology for electrical buses which use high-quality aluminum ingots as raw materials - Google Patents
Production technology for electrical buses which use high-quality aluminum ingots as raw materials Download PDFInfo
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- CN104307915B CN104307915B CN201410653163.XA CN201410653163A CN104307915B CN 104307915 B CN104307915 B CN 104307915B CN 201410653163 A CN201410653163 A CN 201410653163A CN 104307915 B CN104307915 B CN 104307915B
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- aluminum
- bus
- aluminium
- aluminium alloy
- production technology
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 69
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 239000002994 raw material Substances 0.000 title claims abstract description 13
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 51
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 238000004321 preservation Methods 0.000 claims abstract description 3
- 239000004411 aluminium Substances 0.000 claims description 33
- 241001604129 Polydactylus Species 0.000 claims description 20
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 230000003064 anti-oxidating effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 238000009749 continuous casting Methods 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000013019 agitation Methods 0.000 abstract 2
- 239000000155 melt Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
-
- 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
-
- 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
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
Abstract
The invention discloses a production technology for electrical buses which use high-quality aluminum ingots as raw materials. The production technology comprises steps as follows: (1) continuous up-extracting of aluminum and aluminum alloy rods, wherein the high-quality aluminum ingots are used as raw materials and melted at 670 DEG C-750 DEG C, heat preservation is performed, and the melt is subjected to agitation and deaeration by an online deaeration and agitation device; (2) continuous extrusion of aluminum and aluminum alloy buses; and (3) elongation. In the production technology, a full-automatic hydraulic drawing machine is adopted for elongating and finishing aluminum and aluminum alloy buses. The aluminum and aluminum alloy buses prepared by adopting the steps is characterized in that R-state buses has the elongation rate larger than 25% and the strength of extension larger than 75 MPa, and Y-state buses has the elongation rate larger than 4%, the strength of extension larger than 120 MPa and the electric conductivity not less than 62%IACS. The production technology has the advantages of high efficiency, energy conservation, high yield, high production efficiency, high electric conductivity of a product, excellent mechanical properties and the like.
Description
The present invention be Application No. 201310061628.8, the applying date be on 2 27th, 2013, invention entitled " a kind of
The divisional application of the application for a patent for invention of aluminum for electric engineering and the production technology of aluminium bar bus ".
Technical field
The invention belongs to technical field of nonferrous metal processing, the production of more particularly, to a kind of aluminum for electric engineering and aluminium bar bus
Technique.
Background technology
Bus refers to the connection of voltage power distribution equipments at different levels in electric substation, and the electrical equipment such as transformator and accordingly joining
The connection of electric installation, mostly using bare conductor or the twisted wire of rectangle or circular cross-section.The effect of bus is to collect, distribute and transmit
Electric energy.Bus mainly includes copper and copper alloy bus, aluminum and aluminium bar bus two class.Swift and violent with China's electric power and relevant industries
Development, the demand of copper also constantly increases, and because China's copper resource is in short supply, copper valency is higher in addition, female to aluminum and aluminium alloy both at home and abroad
Line demand gradually increases.Compared with copper and copper alloy bus, aluminum and aluminium bar bus have higher safety and reliability, peace
The advantages such as dress is easier, applied range, energy-conserving and environment-protective.The traditional processing technology of aluminum and aluminium bar bus is melting and casting
Heating extrusion rolling aligning, this technique is primarily present technological process length, high energy consumption, lumber recovery is low, production cost is high etc.
Shortcoming.
Content of the invention
The present invention provides a kind of production technology of the electrician's bus with high-quality aluminium ingot as raw material, and its technological process is short, high
Effect energy-conservation, conductivity are high, lumber recovery is high, low production cost.
The technical scheme that the present invention takes is as follows, a kind of production technology of the electrician's bus with high-quality aluminium ingot as raw material,
Comprise the following steps：1. continuous up-casting aluminum and aluminium alloy rod：With high-quality aluminium ingot as raw material, fusing at 670 DEG C～750 DEG C is protected
Temperature, using continuous up-casting unit, and warp removes gas agitating apparatus online, and aluminum and aluminium alloy melt are stirred, degasification, with traction
Aluminum and aluminium alloy rod is drawn in unit disengaging type vacuum.2. continuously extruding aluminum and aluminium bar bus：With aluminum and aluminium alloy rod as raw material,
Aluminum and aluminium bar bus are produced using continuously extruded unit, continuous extruder rotating speed is 10～20r/min, and bus width maximum can
Reach 400mm, bus extruded velocity：8～50m/min, volume after cooling down, dry up through the anti-oxidation pipe of vacuum and tank after bus extrusion
Take；Appropriate design mould and the shape and size of pad, pad is arranged on the top of mould, and pad is concave shape.3. stretch：Adopt
Use fully automatic hydraulic drawbench, aluminum and aluminium bar bus are carried out stretching, finishing.
Using aluminum and the aluminium bar bus of above-mentioned steps preparation, R state bus percentage elongation is more than 25%, and tensile strength is more than
75MPa, Y state bus percentage elongation is more than 4%, and tensile strength is more than 120Mpa, and conductivity is not less than 62%IACS.
The further setting of the present invention is as follows：
Above-mentioned steps 1. in, described online degasification, stirring, are by removing gas agitating apparatus online, to aluminum and aluminium alloy
It is filled with 99.996% argon or nitrogen in melt；By controlled rotation graphite shaft and rotor, by the argon of metering or nitrogen
It is pressed in aluminum and aluminium alloy melt and be dispersed as micro-bubble so as to be uniformly dispersed in aluminum and aluminium alloy melt；Source of the gas goes out
Mouth pressure 0.2～0.5MPa, flow 1～1.25Nm3/h；Then with drawing aluminum and aluminium alloy rod in traction link seat disengaging type vacuum,
Draw bar speed 700～1200mm/min, drawing shank diameter is Ф 12～Ф 40mm.
Above-mentioned steps 1. in, its aluminium content of high-quality aluminium ingot be not less than 99.65%, Fe/Si be 1/（1.3～1.4）, Fe content
It is 0.12～0.20% for 0.09%～0.14%, Si content, content of rare earth is 0.08%～0.15%.
Above-mentioned steps 2. in, the extruding working body of continuously extruded unit is by extruding working body panel, plug, forming room, pad
Piece, concave shape pad, mould and cover plate composition；Pad, concave shape pad, mould are according to top-down assembled in sequence；Character cut in bas-relief
Shape gasket design is concave shape；Pad, concave shape pad are arranged on the top of mould.
Above-mentioned steps 3. in, described drawing coefficient λ is 1.05～1.2.
The present invention is had the advantages that using such scheme：（1）Efficiently, energy-conservation, lumber recovery height, production efficiency are high.
Using the perfect adaptation of continuous up-casting technology and continual extruding technology, produce aluminum and aluminium bar bus, compared with traditional handicraft, raw
Produce flow process to shorten, decrease the operation of ingot casting heating, save substantial amounts of energy resource consumption.Adopt continual extruding technology permissible simultaneously
Realize the serialization of bus production, decrease during traditional extrusion process produces and there is the waste of material that crop truncates, lumber recovery and
Production efficiency is high.（2）Using unique mould and gasket design, increase substantially width and the quality of bus bar products.The present invention
By shape and the thickness of appropriate design mould pad, improve the uniformity of flowing, solve big ratio and big flakiness ratio squeezes
Go out process difficulties, the bus that width is 400mm can be produced.（3）Conductivity is high, excellent in mechanical performance.Female by reasonably optimizing
The chemical composition of line, controls Fe/Si ratio, and adds rare earth element, reduces the impact to conductivity for the impurity element, its conductivity
Not less than 62%IACS.The aluminum of as cast condition and aluminium alloy rod be through continuously extruded simultaneously, and it is changed into recrystallized structure, bus interior
Dense structure of portion, excellent in mechanical performance, wherein R state bus percentage elongation are more than 25%, and tensile strength is more than 75MPa, and Y state bus is stretched
Long rate is more than 4%, and tensile strength is more than 120MPa.
Brief description
Fig. 1 is the production technological process of a kind of aluminum for electric engineering of the present invention and aluminium bar bus；
Fig. 2 extrudes working body structure chart for the present invention；
Fig. 3 is the structural representation of inventive die and pad.
Labelling in above-mentioned accompanying drawing is as follows：Extruding working body panel 10, plug 11, forming room 12, pad 13, concave shape pad
Piece 14, mould 15, cover plate 16.
Specific embodiment
The present invention adopts process program flow process as follows：1. continuous up-casting aluminum and aluminium alloy rod；2. continuously extruding aluminum and aluminum close
Golden bus；3. stretch.
1. continuous up-casting aluminum and aluminium alloy rod.
With high-quality aluminium ingot as raw material, melting and heat preservation at 710 DEG C～730 DEG C, and through online depassing unit, aluminum and aluminum are closed
Golden melt is stirred, degasification, with drawing aluminum and aluminium alloy rod in traction link seat disengaging type vacuum.
Described online degasification, stirring, by removing gas agitating apparatus online, are filled with into aluminum and aluminium alloy melt
99.996% argon or nitrogen, by controlled rotation graphite shaft and rotor, the argon of metering or nitrogen press-in aluminum and aluminum are closed
In golden melt and be dispersed as micro-bubble so as to be uniformly dispersed in aluminum and aluminium alloy melt；Source outlet pressure 0.2～
0.5MPa, flow 1～1.25Nm3/h；Then use traction link seat disengaging type vacuum up-casting oxygen-free copper rod, draw bar speed 700～
1200mm/min, drawing shank diameter is Ф 30mm.
It is 1/ that described its aluminium content of high-quality aluminium ingot is not less than 99.65%, Fe/Si（1.3～1.4）, Fe content is 0.09%
～0.14%, Si content is 0.12～0.20%, and content of rare earth is 0.08%～0.15%.
2. continuously extruding aluminum and aluminium bar bus.
With Ф 30mm aluminum and aluminium alloy rod as raw material, aluminum and aluminium bar bus are produced using continuously extruded unit, continuously squeezes
Press rotating speed is 10～20r/min, bus specification to 19.2 × 202mm, bus extruded velocity：8～50m/min, bus is extruded
Batch after cooling down, dry up by the anti-oxidation pipe of vacuum and tank.
Described continuously extruding aluminum and aluminium bar bus include the shape and size of appropriate design mould and pad, and pad is pacified
It is contained in the top of mould, pad is concave shape.
The present invention, in order to improve uniformity and the mold use life-span of flowing, improves the mouldability of aluminum and aluminium bar bus
Can, improve forming room 12, the structure of concave shape pad 14.As shown in Figure 2 and Figure 3, the unique mould of the present invention and forming room set
Meter, includes extruding working body by extruding working body panel 10, plug 11, forming room 12, pad 13, concave shape pad 14, mould
15 and cover plate 16 form.Pad 13, concave shape pad 14, mould 15 are according to top-down assembled in sequence, concave shape pad 14
It is designed as concave shape.Pad 13, concave shape pad 14 are arranged on the top of mould 15 by the present invention, increased squeezing passage, close
The shape of reason design concave shape pad 14, effectively reduces the difference of edge and middle part flowing velocity during extrusion molding.By above-mentioned
Improve, the present invention produces aluminum and the width of aluminium bar bus can reach 400mm.
3. stretch.Using fully automatic hydraulic drawbench, aluminum and aluminium bar bus are carried out stretching, finishing.Described stretching
Coefficient lambda is 1.077.
Claims (1)
1. a kind of production technology of the electrician's bus with high-quality aluminium ingot as raw material is it is characterised in that comprise the following steps：
1. continuous up-casting aluminum and aluminium alloy rod：With high-quality aluminium ingot as raw material, melting and heat preservation at 670 DEG C～750 DEG C, using above drawing
Continuous casting unit, and warp removes gas agitating apparatus online, and aluminum and aluminium alloy melt are stirred, degasification, uses traction link seat disengaging type
Vacuum continuous up-casting aluminum and aluminium alloy rod；
2. continuously extruding aluminum and aluminium bar bus：With aluminum and aluminium alloy rod as raw material, aluminum and aluminum are produced using continuously extruded unit
Alloy bus；Continuous extruder rotating speed is 10～20r/min, and the width maximum of bus can reach 400mm, bus extruded velocity：8
～50m/min, batches after cooling down, dry up through the anti-oxidation pipe of vacuum and tank after bus extrusion；Appropriate design mould and pad
Shape and size, pad is arranged on the top of mould, and pad is concave shape；
3. stretch：Using fully automatic hydraulic drawbench, aluminum and aluminium bar bus are carried out stretching, finishing；
Using aluminum and the aluminium bar bus of above-mentioned steps preparation, R state bus percentage elongation is more than 25%, and tensile strength is more than 75MPa, Y
State bus percentage elongation is more than 4%, and tensile strength is more than 120Mpa, and conductivity is not less than 62%IACS；
Above-mentioned steps 1. in, described online degasification, stirring, are by removing gas agitating apparatus online, to aluminum and aluminium alloy melt
Inside it is filled with 99.996% argon or nitrogen；By controlled rotation graphite shaft and rotor, by the argon of metering or nitrogen press-in
In aluminum and aluminium alloy melt and be dispersed as micro-bubble so as to be uniformly dispersed in aluminum and aluminium alloy melt；Source outlet pressure
Power 0.2～0.5MPa, flow 1～1.25Nm3/h；Then with drawing aluminum and aluminium alloy rod in traction link seat disengaging type vacuum, draw bar
Speed 700～1200mm/min, drawing shank diameter is Ф 12～Ф 40mm；
Above-mentioned steps 1. in, its aluminium content of high-quality aluminium ingot be not less than 99.65%, Fe/Si be 1/（1.3～1.4）, Fe content is
0.09%～0.14%, Si content is 0.12～0.20%, and content of rare earth is 0.08%～0.15%；
Above-mentioned steps 3. in, drawing coefficient λ be 1.05～1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410653163.XA CN104307915B (en) | 2013-02-27 | 2013-02-27 | Production technology for electrical buses which use high-quality aluminum ingots as raw materials |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061628.8A CN103071696B (en) | 2013-02-27 | 2013-02-27 | Production process of electrical aluminum and aluminum alloy buses |
| CN201410653163.XA CN104307915B (en) | 2013-02-27 | 2013-02-27 | Production technology for electrical buses which use high-quality aluminum ingots as raw materials |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310061628.8A Division CN103071696B (en) | 2013-02-27 | 2013-02-27 | Production process of electrical aluminum and aluminum alloy buses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104307915A CN104307915A (en) | 2015-01-28 |
| CN104307915B true CN104307915B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410653163.XA Active CN104307915B (en) | 2013-02-27 | 2013-02-27 | Production technology for electrical buses which use high-quality aluminum ingots as raw materials |
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| CN (1) | CN104307915B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665463A (en) * | 2016-03-15 | 2016-06-15 | 扬州宏福铝业有限公司 | Semi-solid horizontal extrusion mold for double-layer composite pipes and application thereof |
| CN106734326A (en) * | 2017-02-27 | 2017-05-31 | 江西凯顺科技有限公司 | The continuous formed by extrusion and tension unit of copper aluminium material |
| CN109794592A (en) * | 2018-12-24 | 2019-05-24 | 苏州市永利成模具制造有限公司 | One kind reducing crop end method for round tube |
| CN111644476A (en) * | 2020-05-22 | 2020-09-11 | 湖南乾龙新材料有限公司 | Production process method of large coil weight Al-Mg-Si series alloy extruded material |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5839225B2 (en) * | 1979-11-28 | 1983-08-29 | 古河電気工業株式会社 | Manufacturing method of high strength aluminum alloy conductor |
| JP3670706B2 (en) * | 1995-03-29 | 2005-07-13 | 新日本製鐵株式会社 | Method for producing high-strength aluminum alloy extrusion mold with excellent bending workability |
| JP3724033B2 (en) * | 1996-01-30 | 2005-12-07 | 住友電気工業株式会社 | High-strength, high-heat-resistant aluminum alloy and its manufacturing method, conductive wire and overhead wire |
| CN1941222A (en) * | 2006-09-07 | 2007-04-04 | 上海电缆研究所 | Method for producing heat-resisting high-strength aluminium alloy wire |
| CN101719527B (en) * | 2009-12-03 | 2011-10-26 | 绍兴市力博电气有限公司 | Production technique of copper strips for solar modules |
| CN102543310A (en) * | 2012-02-20 | 2012-07-04 | 徐高磊 | Process for specially-shaped electrolytic conductive material |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jing Chunming Inventor after: Zhang Xusong Inventor after: Chen Xiaobai Inventor after: Cong Changlin Inventor after: Chen Xi Inventor after: Chen Jianquan Inventor before: Hu Yan |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20161206 Address after: 100000 Xicheng District, Chang'an Avenue, No. 86, Applicant after: State Grid Corporation of China Applicant after: STATE GRID JIANGSU ELECTRIC POWER COMPANY Applicant after: State Grid Electric Power Company of Jiangsu province Yancheng City Dafeng district power supply company Applicant after: DAFENG LONGSHENG INDUSTRY CO., LTD. Address before: 239001 room No. 1, science and technology innovation center, No. 82 West Garden Road, Anhui, Chuzhou, China Applicant before: CHUZHOU HUAZUN ELECTRICAL SCIENCE & TECHNOLOGY CO., LTD. |
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