CN106868334A - A kind of special-shaped copper alloy belt and its production method - Google Patents
A kind of special-shaped copper alloy belt and its production method Download PDFInfo
- Publication number
- CN106868334A CN106868334A CN201710096260.7A CN201710096260A CN106868334A CN 106868334 A CN106868334 A CN 106868334A CN 201710096260 A CN201710096260 A CN 201710096260A CN 106868334 A CN106868334 A CN 106868334A
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- Prior art keywords
- copper alloy
- alloy belt
- special
- shaped copper
- band
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention relates to a kind of special-shaped copper alloy belt, the percentage by weight of described copper alloy belt iron content is 0.075%~0.14%, the percentage by weight of phosphorus content is 0.025%~0.04%, with hardness and conductance higher, meets growing lead frame performance requirement.The invention also discloses a kind of production method of special-shaped copper alloy belt, including following operation：Making master tape → forge at a high speed → continuous annealing → surface washing grinding → surface oil wash → type rolling system → on-line checking → lining paper is batched, forged after master tape makes its first one-step forming in high speed, the internal stress after band is forged fully is discharged using continuous annealing, annealing quality is improve, prevents band thickness junction from cracking；Surface washing is ground polishing to band simultaneously, greatly improves band surface evenness, is conducive to zone face in surface oil wash and ROLLING OIL uniform contact, so as to ensure anti-oxidant treatment effect, lifts the crudy of copper alloy belt.
Description
Technical field
The present invention relates to technical field of nonferrous metal processing, more particularly to a kind of special-shaped copper alloy belt and its production method.
Background technology
The raising of electronic component integration degree is caused will to performances such as the conductance of lead frame, hardness and flatness
Ask and also greatly improve.In the market in addition to conventional flat rubber belting, also a large amount of is the special-shaped copper alloy belt work of " T " and " U " using section
It is lead frame.The main machining method of special-shaped copper alloy belt has continuous type rolling preparation method, continuous up-casting-rolling, forges-roll
Preparation method and milling method etc..Wherein, continuous type rolling preparation method and continuous up-casting-rolling are corresponding surface-treated because lacking
Journey, cause production special-shaped copper alloy belt surface quality is poor, precision is low, be also easy to produce the quality such as flexure, unrestrained side, lateral bending scarce
Fall into；Milling method production process can then peel off lot of materials, and yield rate is low.
Domestic majority factory is using continuous up-casting-rolling processing, and the section copper strip surface quality of its production is poor, it is impossible to
It is applied to high-end electronic market；A small number of factories use and forge-rolling processing, because technology and production equipment fall behind, its production
Section copper strip precision is low, oxidizable, be also easy to produce longitudinal crack, it is impossible to supplied to high-end market stabilization.
The content of the invention
It is an object of the invention to provide a kind of special-shaped copper alloy belt with high rigidity, high conductivity.
To achieve the above object, the technical solution adopted by the present invention is：A kind of special-shaped copper alloy belt, described copper alloy belt
The percentage by weight of iron content is 0.075%~0.14%, and the percentage by weight of phosphorus content is 0.025%~0.04%.
Special-shaped copper alloy belt of the present invention adds a small amount of iron, P elements based on acid bronze alloy, makes it have
Hardness and conductance higher, meets growing lead frame performance requirement.
It is another object of the present invention to provide a kind of good physical properties, surfacing and with good oxidation resistance
The production method of the special-shaped copper alloy belt of energy, specifically includes following operation：Making master tape → forge → continuous annealing → table at a high speed
Face washing grinding → surface oil wash → type rolling system → on-line checking → lining paper is batched.
The present invention is forged after master tape makes its first one-step forming in high speed, is fully discharged using continuous annealing in after band is forged
Stress, improves annealing quality, prevents band thickness junction from cracking；Surface washing is ground polishing to band simultaneously,
So that zone face is clean, without defects such as peeling, white points, greatly improve band surface evenness, be conducive to zone face in surface oil wash with
ROLLING OIL uniform contact, so as to ensure anti-oxidant treatment effect, lifts the crudy of copper alloy belt.
Specific embodiment
Below by the description to embodiment, specific embodiment of the invention is described in further detail.
A kind of special-shaped copper alloy belt, with acid bronze alloy as main component, alloy element Fe is added with according to percentage by weight
And phosphorus, the wherein addition scope of iron is 0.075%~0.14%, and the addition scope of phosphorus is 0.025%~0.04%, makes copper alloy
With hardness and conductance higher, growing lead frame performance requirement is met.
Preferably, iron and phosphorus adding proportion by weight percentage are 3:The addition scope of 1, i.e. iron is
0.075%~0.12%, the addition scope of phosphorus is 0.025%~0.04%, can obtain conductance not less than 85%IACS, Vickers
Hardness (Hv) is 110~125 copper alloy.
Preferably, described special-shaped copper alloy belt surface roughness (Ra) is less than 1.0 μm, and zone face is smooth bright and clean,
With good apparent mass.
A kind of production method of special-shaped copper alloy belt, including following operation：
Operation one, makes master tape：Raw material after melting and casting formation strand in intermediate frequency furnace, passes through according to alloy proportion
The operations such as mill-annealed are made masterbatch.Preferably, raw material is made master tape, melting strand → sawing in accordance with the following steps
→ heating → hot rolling → milling face → roughing cogging → annealing → surface scrub → middle rolled bands → shearing slitting.
Operation two, forges at a high speed：Using special-shaped hammering grinding tool, master tape is beaten, by its forging is "T"-shaped, " u "-shaped
Or the special-shaped copper alloy belt needed for other.
Operation three, continuous annealing：Band after forging is continually by burner and holding furnace, and band is rapid in burner
After being heated to 500~650 DEG C, move forward through holding furnace, insulation annealing time of the band in holding furnace be 20~
60s, fully ensures that the annealing time of band, improves annealing quality, makes to forge the internal stress for causing and fully discharges, and is conducive to band
Following process, prevent band thickness join crack.Preferably, the insulation annealing time of band is 30s.
Operation four, surface washing grinding：Strip surface is entered from the abrasive brush that bristle stiffness is gradually reduced from front to back
Row deionized water is scrubbed, and strip surface is processed by shot blasting so that zone face is clean, without defects such as peeling, white points, greatly promotes
Band surface evenness.Preferably, band first passes through the abrasive brush that bristle stiffness is 60~70 and is ground polishing, then leads to
Cross the abrasive brush that bristle stiffness is 20~25 and be ground polishing, the strip surface roughness (Ra) of acquisition is less than 1.0 μm.
Operation five, surface oil wash：Cooling is lubricated to band using the ROLLING OIL containing antioxidant, can stabilising strip
Surface chemistry, the roll forming of band is easy to again.Band through surface washing grinding has good flatness so that
Zone face and ROLLING OIL energy uniform contact, so as to be further ensured that anti-oxidant treatment effect, lift the crudy of copper alloy belt.
Operation six, type rolling system：Strip-rolling is molded using abnormal-shaped roller.
Preferably, in surface washing grinding (operation four), surface oil wash (operation five) and type rolling system (operation
Six) cleaning systems for separating each operation are respectively arranged between, described cleaning systems can be using modes such as purging, suctions
The deionized water and ROLLING OIL of strip surface are sufficiently separated, so as to ensure that zone face is bright and clean without stain, band quality is lifted.
Operation seven, on-line checking.
Operation eight, lining paper is batched.
Claims (9)
1. a kind of special-shaped copper alloy belt, it is characterised in that：The percentage by weight of described copper alloy belt iron content be 0.075%~
0.14%, the percentage by weight of phosphorus content is 0.025%~0.04%.
2. special-shaped copper alloy belt according to claim 1, it is characterised in that：By weight percentage, described copper alloy belt
The ratio of middle iron and phosphorus is 3:1.
3. special-shaped copper alloy belt according to claim 1 and 2, it is characterised in that：The surface roughness of the copper alloy belt
(Ra) 1.0 μm are less than.
4. the production method of the special-shaped copper alloy belt described in a kind of any one of claim 1-3, it is characterised in that：Including following work
Sequence, making master tape → forge at a high speed → continuous annealing → surface washing grinding → surface oil wash → type rolling system → on-line checking →
Lining paper is batched.
5. method according to claim 4, it is characterised in that：The making master tape operation comprises the following steps that melting is cast
Base → sawing → heating → hot rolling → milling face → roughing cogging → annealing → surface scrub → middle rolled bands → shearing slitting.
6. the method according to claim 4 or 5, it is characterised in that：The annealing temperature of the continuous annealing operation be 500~
650 DEG C, annealing time is 20~60s.
7. the method according to claim 4 or 5, it is characterised in that：Described surface washing step is to select from front to back
The abrasive brush that bristle stiffness is gradually reduced carries out deionized water scrub to strip surface.
8. the method according to claim 4 or 5, it is characterised in that：Described surface oil wash operation is using containing anti-oxidant
The ROLLING OIL of agent is lubricated cooling to band.
9. the method according to claim 4 or 5, it is characterised in that：Described surface washing step, surface oil wash operation,
The cleaning systems for separating each operation are respectively arranged between type roller rolling process, described cleaning systems can separate strip surface
Deionized water and ROLLING OIL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710096260.7A CN106868334A (en) | 2017-02-22 | 2017-02-22 | A kind of special-shaped copper alloy belt and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710096260.7A CN106868334A (en) | 2017-02-22 | 2017-02-22 | A kind of special-shaped copper alloy belt and its production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106868334A true CN106868334A (en) | 2017-06-20 |
Family
ID=59168966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710096260.7A Pending CN106868334A (en) | 2017-02-22 | 2017-02-22 | A kind of special-shaped copper alloy belt and its production method |
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| CN (1) | CN106868334A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876574A (en) * | 2017-11-03 | 2018-04-06 | 宁波康强电子股份有限公司 | A kind of manufacture method of shaped strip copper |
| CN115138801A (en) * | 2022-06-30 | 2022-10-04 | 瑞安市东弘电器有限公司 | Copper bar extrusion production device and production method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1514030A (en) * | 2003-07-28 | 2004-07-21 | 洛阳铜加工集团有限责任公司 | High precision profiled copper alloy belt and its manufacturing method |
| CN1644726A (en) * | 2004-01-23 | 2005-07-27 | 株式会社神户制钢所 | High-strength high-conductivity copper alloy |
-
2017
- 2017-02-22 CN CN201710096260.7A patent/CN106868334A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1514030A (en) * | 2003-07-28 | 2004-07-21 | 洛阳铜加工集团有限责任公司 | High precision profiled copper alloy belt and its manufacturing method |
| CN1644726A (en) * | 2004-01-23 | 2005-07-27 | 株式会社神户制钢所 | High-strength high-conductivity copper alloy |
Non-Patent Citations (1)
| Title |
|---|
| 黄国杰等: ""KFC引线框架铜合金带材的生产工艺研究"", 《功能材料》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876574A (en) * | 2017-11-03 | 2018-04-06 | 宁波康强电子股份有限公司 | A kind of manufacture method of shaped strip copper |
| CN115138801A (en) * | 2022-06-30 | 2022-10-04 | 瑞安市东弘电器有限公司 | Copper bar extrusion production device and production method thereof |
| CN115138801B (en) * | 2022-06-30 | 2024-02-13 | 瑞安市东弘电器有限公司 | Copper bar extrusion production device and production method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |
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| RJ01 | Rejection of invention patent application after publication |