CN104959396B - Production process of copper strip for composite contact material - Google Patents
Production process of copper strip for composite contact material Download PDFInfo
- Publication number
- CN104959396B CN104959396B CN201510467655.4A CN201510467655A CN104959396B CN 104959396 B CN104959396 B CN 104959396B CN 201510467655 A CN201510467655 A CN 201510467655A CN 104959396 B CN104959396 B CN 104959396B
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- Prior art keywords
- copper strips
- copper
- contact material
- composite contact
- thickness
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Classifications
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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
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Contacts (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a production process of a copper strip for a composite contact material. The production process comprises the following steps: firstly, taking high-purity cathode copper as the raw material, driving the high-purity cathode copper by a traction unit in a smelting device for continuous casting, and after finishing casting, cooling by use of cooling circulating water, thereby obtaining an up-drawn copper rod; secondly, continuously squeezing the produced up-drawn copper rod in a continuous squeezing machine; thirdly, performing one-pass rolling on the squeezed copper strip by use of a cold rolling unit according to the thickness of the copper strip for the composite contact material; and finally, slitting the rolled copper strip by use of a slitting unit, thereby obtaining the copper strip for the composite contact material. According to the production process of the copper strip for the composite contact material, the processes of continuous up casting, continuous squeezing, one-pass rolling and slitting are adopted; the total amount of copper and silver in the chemical components of the copper strip is greater than or equal to 99.99%, and the oxygen content in the copper strip is smaller than 5ppm.
Description
Technical field
The present invention relates to a kind of production technology of composite contact material copper strips.
Background technology
Composite contact material is, based on different use requirements, the material with different qualities to be consolidated using advanced room temperature
Mutually it is combined or hot composition process technology, the new function material of rolling, which is used as the new crucial electrical contact basis of high-tech
Material, has the advantages that to save Precious Metals Resources, good combination property, low cost of manufacture, in current numerous same type of material solely
A flag is set, the fields such as electronic apparatus, communication, computer are widely used in, while being additionally operable to defence and military equipment.
Composite contact material needs Rolling compund or fluting compound, to copper strip due to its special processing technique
Size and its required precision are higher, also have higher requirement to the mechanical property and chemical composition of band.Traditional production method
Using Hot rolling, but there is long the production cycle in this method, and efficiency is low, while the performance of material there is also unstability.
The content of the invention
It is an object of the invention to provide a kind of production technology of composite contact material copper strips, draws continuous casting in employing
Make, continuously extruded, a time rolling, the technique of cutting；Copper and silver-colored total amount >=99.99%, oxygen in described copper strips its chemical composition
Content is less than 5ppm；The vickers hardness hv of the band is 105-115, and tensile strength is 295-345MPa, and elongation percentage is 8-
15%, thickness is 2.0-5.0 mm, and thickness deviation is ± 0.01mm, and width tolerance is ± 0.10mm, and lateral bending is less than 1mm/m, plane
Degree is less than 0.05 mm；Conductivity is more than 101%IACS.
In order to achieve the above object, the technical scheme is that：
A kind of production technology of composite contact material copper strips, comprises the steps：First with Cu-CATH-1 as raw material,
Cu-CATH-1 continuously casting in the smelting apparatus is driven with traction link seat, is covered each by the Cu-CATH-1 in smelting apparatus
There are Linesless charcoal and graphite phosphorus sheet, cooled down so as to draw copper bar on being obtained with cooling circulating water after the completion of casting；Then will be obtained
On draw copper bar carry out in continuous extruder it is continuously extruded；Then cold-rolling mill is utilized according to the thickness of composite contact material copper strips
Group carries out a time rolling to copper strips after extruding, and pass reduction is 60%；Finally the copper strips after rolling is entered using cutting unit
Row cutting, so that obtain the copper strips of composite contact material.
The bar speed of drawing of the traction link seat is 510 550mm/min；Cooling circulating water pressure is 0.11 0.19MPa,
Pitch 50mm；1,145 1155 DEG C of smelting temperature.
The granularity of the Linesless charcoal is 35mm 45mm, cladding thickness 70mm 90mm；The covering of described graphite phosphorus sheet is thick
Degree 20mm 28mm.
Draw copper shank diameter on described for 20mm, diameter tolerance ± 0.1mm.
The continuous extruder rotating speed is 7.2 7.9r/min.
Drawing copper bar on described carries out the continuously extruded thickness for making copper strips in continuous extruder for 5.0 12.5mm.
Before the rolling copper strips tension force be 12 15KN, after rolling copper strips tension force be 16 18KN, the rolling of cold mill complex
Speed is 60 80m/min.
Drafts for copper strips thickness 51% 55% during the cutting, the gap of slitting blade is the 11% of copper strips thickness
15%。
The invention has the beneficial effects as follows：
（1）The band excellent performance of the present invention, copper and silver-colored total amount >=99.99% in described its chemical composition of copper strips, oxygen contain
Amount is less than 5ppm；The vickers hardness hv of the band is 105-115, and tensile strength is 295-345MPa, and elongation percentage is 8-15%,
Thickness is 2.0-5.0 mm, and thickness deviation is ± 0.01mm, and width tolerance is ± 0.10mm, and, less than 1mm/m, flatness is little for lateral bending
In 0.05 mm；Conductivity is more than 101%IACS；
（2）A kind of composite contact material copper strips production technology of the present invention, is rolled with a time using continual extruding technology
Combine, the technological process of production is short, efficient, energy-conservation；Ingot casting processing, milling face, cutting edge etc. is saved compared with traditional processing technology
Operation.
Specific embodiment
Embodiment 1
A kind of production technology of composite contact material copper strips, comprises the steps：First with Cu-CATH-1 as raw material,
Cu-CATH-1 continuously casting in the smelting apparatus is driven with traction link seat, is covered each by the Cu-CATH-1 in smelting apparatus
There are Linesless charcoal and graphite phosphorus sheet, cooled down so as to draw copper bar on being obtained with cooling circulating water after the completion of casting.The traction link seat
Draw bar speed for 510mm/min；Cooling circulating water pressure be 0.11MPa, pitch 50mm；1145 DEG C of smelting temperature.The wood
The granularity of charcoal is 35mm, cladding thickness 70mm；The cladding thickness 20mm of described graphite phosphorus sheet.Drawing copper shank diameter on described is
20mm, diameter tolerance+0.1mm.
Then draw on will be obtained copper bar carry out in continuous extruder it is continuously extruded.The continuous extruder rotating speed is
7.2r/min.Drawing copper bar on described carries out the continuously extruded thickness for making copper strips in continuous extruder for 5.0mm.
Then a time is carried out using cold mill complex to copper strips after extruding with the thickness of copper strips according to composite contact material to roll
System, pass reduction is 60%.Before the rolling, copper strips tension force is 12KN, and after rolling, copper strips tension force is 16KN, and cold mill complex rolls
Speed processed is 60m/min.The size of composite contact material copper strips is 5mm as required, then need continuous extrusion copper strip billet
Size is 12.5mm, is rolled down to 5mm using a time.
Finally the copper strips after rolling is cut using cutting unit, so as to obtain the copper strips of composite contact material.
Drafts for copper strips thickness 51% during the cutting, the gap of slitting blade is the 11% of copper strips thickness.
A kind of production technology of the composite contact material copper strips of the present embodiment, it is using Continuous Up casting, continuously extruded,
A time is rolled, the technique of cutting；Copper and silver-colored total amount >=99.99% in described copper strips its chemical composition, oxygen content are less than
5ppm；The vickers hardness hv of the band is 105-115, and tensile strength is 295-345MPa, and elongation percentage is 8-15%, and thickness is
2.0-5.0 mm, thickness deviation are ± 0.01mm, and width tolerance is ± 0.10mm, and, less than 1mm/m, flatness is less than 0.05 for lateral bending
mm；Conductivity is more than 101%IACS.
Embodiment 2
A kind of production technology of composite contact material copper strips, comprises the steps：First with Cu-CATH-1 as raw material,
Cu-CATH-1 continuously casting in the smelting apparatus is driven with traction link seat, is covered each by the Cu-CATH-1 in smelting apparatus
There are Linesless charcoal and graphite phosphorus sheet, cooled down so as to draw copper bar on being obtained with cooling circulating water after the completion of casting.The traction link seat
Draw bar speed for 550mm/min；Cooling circulating water pressure be 0.19MPa, pitch 50mm；1155 DEG C of smelting temperature.The wood
The granularity of charcoal is 45mm, cladding thickness 90mm；The cladding thickness 28mm of described graphite phosphorus sheet.Drawing copper shank diameter on described is
20mm, diameter tolerance -0.1mm.
Then draw on will be obtained copper bar carry out in continuous extruder it is continuously extruded.The continuous extruder rotating speed is
7.9r/min.Drawing copper bar on described carries out the continuously extruded thickness for making copper strips in continuous extruder for 12.5mm.
Then a time is carried out using cold mill complex to copper strips after extruding with the thickness of copper strips according to composite contact material to roll
System, pass reduction is 60%.Before the rolling, copper strips tension force is 15KN, and after rolling, copper strips tension force is 18KN, and cold mill complex rolls
Speed processed is 80m/min.The size of composite contact material copper strips is 5mm as required, then need continuous extrusion copper strip billet
Size is 12.5mm, is rolled down to 5mm using a time.
Finally the copper strips after rolling is cut using cutting unit, so as to obtain the copper strips of composite contact material.
Drafts for copper strips thickness 55% during the cutting, the gap of slitting blade is the 15% of copper strips thickness.
A kind of production technology of the composite contact material copper strips of the present embodiment, it is using Continuous Up casting, continuously extruded,
A time is rolled, the technique of cutting；Copper and silver-colored total amount >=99.99% in described copper strips its chemical composition, oxygen content are less than
5ppm；The vickers hardness hv of the band is 105-115, and tensile strength is 295-345MPa, and elongation percentage is 8-15%, and thickness is
2.0-5.0 mm, thickness deviation are ± 0.01mm, and width tolerance is ± 0.10mm, and, less than 1mm/m, flatness is less than 0.05 for lateral bending
mm；Conductivity is more than 101%IACS.
Embodiment 3
A kind of production technology of composite contact material copper strips, comprises the steps：First with Cu-CATH-1 as raw material,
Cu-CATH-1 continuously casting in the smelting apparatus is driven with traction link seat, is covered each by the Cu-CATH-1 in smelting apparatus
There are Linesless charcoal and graphite phosphorus sheet, cooled down so as to draw copper bar on being obtained with cooling circulating water after the completion of casting.The traction link seat
Draw bar speed for 530mm/min；Cooling circulating water pressure be 0.15MPa, pitch 50mm；1150 DEG C of smelting temperature.The wood
The granularity of charcoal is 40mm, cladding thickness 80mm；The cladding thickness 24mm of described graphite phosphorus sheet.Drawing copper shank diameter on described is
20mm, diameter tolerance+0.1mm.
Then draw on will be obtained copper bar carry out in continuous extruder it is continuously extruded.The continuous extruder rotating speed is
7.5r/min.Drawing copper bar on described carries out the continuously extruded thickness for making copper strips in continuous extruder for 9mm.
Then a time is carried out using cold mill complex to copper strips after extruding with the thickness of copper strips according to composite contact material to roll
System, pass reduction is 60%.Before the rolling, copper strips tension force is 13KN, and after rolling, copper strips tension force is 17KN, and cold mill complex rolls
Speed processed is 70m/min.The size of composite contact material copper strips is 5mm as required, then need continuous extrusion copper strip billet
Size is 12.5mm, is rolled down to 5mm using a time.
Finally the copper strips after rolling is cut using cutting unit, so as to obtain the copper strips of composite contact material.
Drafts for copper strips thickness 53% during the cutting, the gap of slitting blade is the 13% of copper strips thickness.
A kind of production technology of the composite contact material copper strips of the present embodiment, it is using Continuous Up casting, continuously extruded,
A time is rolled, the technique of cutting；Copper and silver-colored total amount >=99.99% in described copper strips its chemical composition, oxygen content are less than
5ppm；The vickers hardness hv of the band is 105-115, and tensile strength is 295-345MPa, and elongation percentage is 8-15%, and thickness is
2.0-5.0 mm, thickness deviation are ± 0.01mm, and width tolerance is ± 0.10mm, and, less than 1mm/m, flatness is less than 0.05 for lateral bending
mm；Conductivity is more than 101%IACS.
Claims (7)
1. a kind of production technology of composite contact material copper strips, it is characterised in that comprise the steps：First with high-purity negative electrode
Copper is raw material, drives Cu-CATH-1 continuously casting in the smelting apparatus, the Cu-CATH-1 in smelting apparatus with traction link seat
On be covered each by Linesless charcoal and graphite phosphorus sheet, after the completion of casting with cooling circulating water cooled down so as to be obtained on draw copper bar；Connect
Will be obtained on draw copper bar carry out in continuous extruder it is continuously extruded；Then the thickness according to composite contact material copper strips
A time rolling is carried out to copper strips after extruding using cold mill complex, and pass reduction is 60%, and before the rolling, copper strips tension force is
12 15KN, after rolling, copper strips tension force is 16 18KN, and the mill speed of cold mill complex is 60 80m/min；Finally utilize and divide
Cut unit to cut the copper strips after rolling, so as to obtain the copper strips of composite contact material.
2. the production technology of a kind of composite contact material copper strips according to claim 1, it is characterised in that：The traction
The bar speed of drawing of unit is 510 550mm/min；Cooling circulating water pressure be 0.11 0.19MPa, pitch 50mm；Melting temperature
Spend 1,145 1155 DEG C.
3. the production technology of a kind of composite contact material copper strips according to claim 1, it is characterised in that：The Linesless charcoal
Granularity be 35mm 45mm, cladding thickness 70mm 90mm；The cladding thickness 20mm 28mm of described graphite phosphorus sheet.
4. the production technology of a kind of composite contact material copper strips according to claim 1, it is characterised in that：Draw on described
Copper shank diameter is 20mm, diameter tolerance ± 0.1mm.
5. the production technology of a kind of composite contact material copper strips according to claim 1, it is characterised in that：It is described continuous
Extruder rotating speed is 7.2 7.9r/min.
6. the production technology of a kind of composite contact material copper strips according to claim 1, it is characterised in that：Draw on described
Copper bar carries out the continuously extruded thickness for making copper strips in continuous extruder for 5.0 12.5mm.
7. the production technology of a kind of composite contact material copper strips according to claim 1, it is characterised in that：The cutting
When drafts be 51% the 55% of copper strips thickness, the gap of slitting blade for copper strips thickness 11% 15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510467655.4A CN104959396B (en) | 2015-08-04 | 2015-08-04 | Production process of copper strip for composite contact material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510467655.4A CN104959396B (en) | 2015-08-04 | 2015-08-04 | Production process of copper strip for composite contact material |
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| CN104959396A CN104959396A (en) | 2015-10-07 |
| CN104959396B true CN104959396B (en) | 2017-03-22 |
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| CN201510467655.4A Expired - Fee Related CN104959396B (en) | 2015-08-04 | 2015-08-04 | Production process of copper strip for composite contact material |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239044B (en) * | 2016-08-04 | 2019-06-25 | 温州点点点工业设计有限公司 | A kind of copper strips production technology for LED support |
| CN106180248B (en) * | 2016-08-05 | 2017-12-29 | 惠州市一电电池技术有限公司 | A kind of electrician is with the production technology of phosphor-copper band |
| CN107999560A (en) * | 2017-12-01 | 2018-05-08 | 浙江力博实业股份有限公司 | The preparation method of breaker copper strips |
| CN110385351B (en) * | 2019-07-17 | 2021-01-19 | 浙江力博实业股份有限公司 | Production method of special-shaped copper strip |
| CN110385350B (en) * | 2019-07-17 | 2021-06-18 | 浙江力博实业股份有限公司 | Production method of special-shaped copper alloy strip |
| CN110404998A (en) * | 2019-07-29 | 2019-11-05 | 东莞市中一合金科技有限公司 | A kind of preparation method for covering layer gold MULTILAYER COMPOSITE contact special section |
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| JPS63230220A (en) * | 1987-03-19 | 1988-09-26 | Furukawa Electric Co Ltd:The | Manufacture of heat resistant aluminum coated steel wire for electric conduction |
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| CN101134276A (en) * | 2007-09-29 | 2008-03-05 | 绍兴市力博电缆有限公司 | Production process of large-length oxygen-free copper strip |
| CN101502872A (en) * | 2009-03-11 | 2009-08-12 | 上海康成铜材有限公司 | Shortened method for producing oxygen-free copper belt |
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| CN104959396A (en) | 2015-10-07 |
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