CN1351920A - Super thick wall chromium zirconium copper tube for resistance welding holder electrode arm and preparing method - Google Patents
Super thick wall chromium zirconium copper tube for resistance welding holder electrode arm and preparing method Download PDFInfo
- Publication number
- CN1351920A CN1351920A CN 00123257 CN00123257A CN1351920A CN 1351920 A CN1351920 A CN 1351920A CN 00123257 CN00123257 CN 00123257 CN 00123257 A CN00123257 A CN 00123257A CN 1351920 A CN1351920 A CN 1351920A
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- CN
- China
- Prior art keywords
- resistance welding
- arm
- copper
- polar arm
- thick wall
- 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.)
- Granted
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- 238000003466 welding Methods 0.000 title claims abstract description 20
- QZLJNVMRJXHARQ-UHFFFAOYSA-N [Zr].[Cr].[Cu] Chemical compound [Zr].[Cr].[Cu] QZLJNVMRJXHARQ-UHFFFAOYSA-N 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 8
- 239000010949 copper Substances 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 3
- 238000005476 soldering Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 3
- 150000001879 copper Chemical class 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 238000005097 cold rolling Methods 0.000 claims description 2
- XTYUEDCPRIMJNG-UHFFFAOYSA-N copper zirconium Chemical compound [Cu].[Zr] XTYUEDCPRIMJNG-UHFFFAOYSA-N 0.000 claims description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
A welding holder electrode arm is made of Cr and Zr-contained copper alloy pipe. The vacuum smelted copper alloy with Cr content of 0.2-0.7 wt% and Zr content of 0.2-0.3 wt% is cast into ingot, forged and heat-treated into wire rod, machined to form central water hole, cold-rolled into fine rod, cut into required length and shaped into the electrode arm product. The electrode arm product has high tensile strength, high hardness, and electric conductivity as high as 75% of pure copper.
Description
The present invention relates to selection and the manufacturing technology of resistance welding with polar arm.
At present, the electric resistance welding welding machine is all adopted in big electric current welding in industrial use, its structure is made up of welding machine main body and polar arm electrode two large divisions, the mechanical part that butt welding point was exerted pressure when wherein polar arm was welding, it simultaneously is again the electric current conductive material that needs big electric current, therefore it should have high intensity that excellent conducting performance is arranged again, welding machine main center position also will lead to cooling water, so it is a kind of double extra-strong tubular material, the most casting brasss that adopt of current soldering turret polar arm, a pre-buried thin copper pipe is as cooling-water duct in casting process, and this kind soldering turret weak point is that the tensile strength of brass is low, poor electric conductivity, conductance can only reach 78% of fine copper, because intensity is not high, so its deformation amount of deflection is big when welding is exerted pressure greatly, the soldering tip malposition of electrode, influence welding quality, because the resistance height, electric current is excessive, itself generates heat, and consumes a large amount of energy.
In order to overcome the deficiency of above soldering turret brass material, purpose of the present invention provides a kind of resistance welding polar arm with special thick wall chromium zirconium copper tube and preparation method, the soldering turret polar arm utilizes the special heavy wall copper pipe of chromium zirconium copper, make through a series of technological method for processing, big to reach tensile strength, the conductance height, the purpose of energy savings.
Technical solution of the present invention is achieved in that resistance welding adopts the special heavy wall copper pipe of chromium zirconium copper to make with polar arm, wherein chrome zirconium copper alloy Cr-0.2～0.7%; Zr-0.2～0.3%, the preparation method is illustrated in conjunction with the embodiments.At first adopt the method smelting of vacuum metling that this alloy is cast as ingot, ingot is of a size of φ 200mm, high 400mm, it is the bar of φ 70～80mm that this ingot forge hot is become external diameter, 800～850 ℃ of forging temperatures, again this bar is heated to 960～1020 ℃, be incubated shrend after 2～3 hours, carry out solution treatment, bar after handling is cut into the material that length is 500mm～700mm, process the hole of φ 22～24mm in its heart portion, on cold pilger mill be rolled into external diameter φ 50～60mm with bar this moment, the bar of endoporus φ 16～18mm, water flowing is handled under 3 hours condition of 300 ℃ of insulations then; Second passage becomes rolling bar the special heavy wall copper pipe of external diameter φ 35～48mm, endoporus φ 10～14mm again, this copper pipe is cut into arm pincers polar arm Len req, it is long to be generally 500mm～1700mm, through alignment, difference requirement by the soldering turret polar arm curves nose shape then, at 420～450 ℃, be incubated 3～4 hours and carry out the artificial aging processing under the condition at last, get and reserve structure to the end.
The present invention has following advantage compared with the prior art: this soldering turret polar arm tensile strength is big, the hardness height, and conductance is 75% of a fine copper, is a kind of good soldering turret polar arm material.
Embodiments of the invention, its structure as shown in drawings.
Fig. 1 for the resistance welding polar arm with special thick wall chromium zirconium copper tube structure principle chart;
Fig. 2 for the resistance welding polar arm with special thick wall chromium zirconium copper tube polar arm profile.
Its structure 1 is a caliper, and 2 is polar arm, and 3 is electrode, and 4 is cable, and 5 is water pipe, and 6 is cylinder.
The preparation method: adopting the method copper alloy content Cr of vacuum metling is 0.5%, Zr is 0.3%, all the other are copper, this alloy is cast as ingot, be of a size of φ 200mm, high 400mm, it is φ 70mm that this ingot is forged into external diameter, 820 ℃ of forging temperatures, this rod is heated to 1000 ℃, be incubated shrend after 3 hours, carry out solution treatment, the bar after handling is cut into the material that length is 500mm, heart position processes the hole of φ 22mm therein, on cold-rolling mill, be rolled into external diameter φ 50mm again, the bar of endoporus φ 16mm, then at 300 ℃, water flowing is handled under the condition that is incubated 3 hours; Second passage becomes rolling bar the special heavy wall copper pipe of external diameter φ 35mm, endoporus φ 10mm, this copper pipe is cut into arm pincers polar arm Len req, it is long to be generally 500mm～1700mm, through alignment, difference requirement by the soldering turret polar arm curves nose shape then, at 420 ℃, be incubated 3 hours and carry out the artificial aging processing under the condition at last, get and reserve structure to the end.
Claims (2)
1. special thick wall chromium zirconium copper tube of resistance welding polar arm is characterized in that resistance welding makes with the special thick arm copper pipe of polar arm, wherein chrome zirconium copper alloy Cr-0.2～0.7%; Zr-0.2～0.3%.
2. a resistance welding polar arm is with the preparation method of special thick wall chromium zirconium copper tube, it is characterized in that adopting the method copper alloy content Cr of vacuum metling is 0.5%, Zr is 0.3%, all the other are copper, this alloy is cast as ingot, is of a size of φ 200mm, high 400mm, it is φ 70mm that this ingot is forged into external diameter, 820 ℃ of forging temperatures are heated to 1000 ℃ with this rod, are incubated shrend after 3 hours, carry out solution treatment, bar after handling is cut into the material that length is 500mm, and heart position processes the hole of φ 22mm therein, is rolled into external diameter φ 50mm again on cold-rolling mill, the bar of endoporus φ 16mm, at 300 ℃, water flowing is handled under the condition that is incubated 3 hours then; Second passage becomes rolling bar the special heavy wall copper pipe of external diameter φ 35mm, endoporus φ 10mm, this copper pipe is cut into arm pincers polar arm Len req, it is long to be generally 500mm～1700mm, through alignment, difference requirement by the soldering turret polar arm curves nose shape then, at 420 ℃, be incubated 3 hours and carry out the artificial aging processing under the condition at last, get and reserve structure to the end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001232576A CN1159128C (en) | 2000-11-15 | 2000-11-15 | Super thick wall chromium zirconium copper tube for resistance welding holder electrode arm and preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001232576A CN1159128C (en) | 2000-11-15 | 2000-11-15 | Super thick wall chromium zirconium copper tube for resistance welding holder electrode arm and preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1351920A true CN1351920A (en) | 2002-06-05 |
| CN1159128C CN1159128C (en) | 2004-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001232576A Expired - Fee Related CN1159128C (en) | 2000-11-15 | 2000-11-15 | Super thick wall chromium zirconium copper tube for resistance welding holder electrode arm and preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1159128C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189173A (en) * | 2011-03-09 | 2011-09-21 | 南京工业职业技术学院 | Carrier-free one-die two-piece forming method for bracket |
| CN104141065A (en) * | 2014-08-13 | 2014-11-12 | 陕西斯瑞工业有限责任公司 | Precision casting technique for copper-alloy casting |
-
2000
- 2000-11-15 CN CNB001232576A patent/CN1159128C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189173A (en) * | 2011-03-09 | 2011-09-21 | 南京工业职业技术学院 | Carrier-free one-die two-piece forming method for bracket |
| CN102189173B (en) * | 2011-03-09 | 2012-10-03 | 南京工业职业技术学院 | Carrier-free one-die two-piece forming method for bracket |
| CN104141065A (en) * | 2014-08-13 | 2014-11-12 | 陕西斯瑞工业有限责任公司 | Precision casting technique for copper-alloy casting |
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| Publication number | Publication date |
|---|---|
| CN1159128C (en) | 2004-07-28 |
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