CN104993256A - Hoop clamp for power transmission and transformation equipment and manufacturing method thereof - Google Patents
Hoop clamp for power transmission and transformation equipment and manufacturing method thereof Download PDFInfo
- Publication number
- CN104993256A CN104993256A CN201510317385.9A CN201510317385A CN104993256A CN 104993256 A CN104993256 A CN 104993256A CN 201510317385 A CN201510317385 A CN 201510317385A CN 104993256 A CN104993256 A CN 104993256A
- Authority
- CN
- China
- Prior art keywords
- anchor ear
- wire clamp
- power transmission
- hot rolling
- punch forming
- 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.)
- Pending
Links
Landscapes
- Forging (AREA)
Abstract
The invention discloses a hoop clamp for power transmission and transformation equipment and a manufacturing method thereof. The hoop clamp is made of pure copper, is molded by stamping and hot-rolling processes, needs no subsequent heat treatment process, and can be directly air-cooled. The hoop clamp has the advantages of uniform composition, compact structure, no casting defects, controllable manufacturing cost, and no tendency to stress cracking. The conductivity of the hoop clamp can be up to more than 97% ICAS. The hoop clamp has stronger current-carrying capacity than a traditional cast brass hoop clamp under the same specification and size conditions, and has excellent mechanical properties. The tensile strength can be up to 180-200MPa, which is better than that of an ordinary cast brass hoop clamp. Nondestructive test can be carried out on the hoop clamp on site, and detection is convenient. Through conductivity test, hardness detection and size measurement, the quality of the hoop clamp can be controlled.
Description
Technical field
The present invention relates to interleaving techniques field, particularly a kind of new manufacture of power transmission and transforming equipment anchor ear wire clamp that power transmission and transforming equipment and material manufacture.
Background technology
Anchor ear wire clamp is the important connection gold utensil of transmission line, by drainage plate, embrace ear, fastening bolt forms.Be fixed on the outlet terminal of equipment by fastening bolt by embracing ear, electric current is imported into by anchor ear wire clamp or spreads out of equipment, for the outlet terminal making anchor ear wire clamp embrace ear and equipment has larger contact area, thus obtain larger water conservancy diversion cross section, adopt fastening bolt will embrace ear and be fixed on outlet terminal.Tradition anchor ear wire clamp adopts the manufacture of brass material, and brass is made up of Cu and Zn two kinds of essential elements, also has a certain amount of Pb element.Because the proportion of element each in brass is different, can there is gross segregation in online folder manufacture process, cause the composition of wire clamp each several part inconsistent, local Pb constituent content exceeds standard, and when Pb content is greater than 3%, the mechanical property of alloy can be made to decline comprehensively.In addition, casting brass itself has again very strong stress cracking sensitiveness, and anchor ear wire clamp carries out bolted after embracing ear fluting, embraces ear self and there is very large tension stress in running, greatly adds wire clamp in the stress cracking tendentiousness of embracing ear position.Adopt another problem of anchor ear wire clamp of casting technique manufacture be inevitably produce in wire clamp be mingled with, the defect such as trachoma and pore.Because copper accessory factory and transformer factory are only detected the presentation quality of wire clamp, therefore the defects such as being mingled with of inside, pore cannot, control, easily make the wire clamp that there is cast inside defect enter into electrical network.In addition, also there is the problems such as casting after-baking is not in place, mounting process is indefinite, quality inspection difficulty is large in casting brass anchor ear wire clamp in the manufacturing, installation and military service process.All factors make to adopt the inefficacy such as frequent outlet cracking, fracture in running of traditional anchor ear wire clamp of brass casting above, have had a strong impact on the safe operation of electrical network.
Summary of the invention
First technical problem to be solved by this invention is to provide one and there will not be fracture power transmission and transforming equipment anchor ear wire clamp under arms in process.
Second technical problem to be solved by this invention is to provide the manufacture method of the power transmission and transforming equipment anchor ear wire clamp that a kind of preparation technology is simple, production efficiency is high.
In order to solve first technical problem, power transmission and transforming equipment anchor ear wire clamp provided by the invention, is made up of drainage plate, armful ear and fastening bolt, and described drainage plate and armful ear adopt a fine copper to form through punch forming, hot rolling distortion and zinc-plated or silver-plated manufacture.
Particularly, described fine copper is cold rolling T1, T2 fine copper.
In order to solve second technical problem, the method of manufacture power transmission and transforming equipment anchor ear wire clamp provided by the invention, first carry out punch forming to sizeable Cold-rolled Pure copper billet, process the bolt hole embracing ear and drainage plate, punch forming temperature is 750 DEG C ~ 850 DEG C; Then adopt hot coil process, hot rolling temperature is 750 DEG C ~ 850 DEG C, rolls out the anchor ear of anchor ear wire clamp, directly by finished product air cooling after hot rolling; Finally carry out zinc-plated process or silver-plated process to finished surface, tin coating thickness is 12 μm ~ 20 μm, and silver coating thickness is 20 μm ~ 40 μm.
Further, on anchor ear, tapping manufactures screw thread.
Particularly, punch forming temperature is 800 DEG C, and hot rolling temperature is 800 DEG C, and silver coating thickness is 20 μm.
Particularly, punch forming temperature is 830 DEG C, and hot rolling temperature is 800 DEG C, and tin coating thickness is 15 μm.
Particularly, punch forming temperature is 750 DEG C ~ 800 DEG C; Hot rolling temperature is 750 DEG C ~ 800 DEG C, and tin coating thickness is 12 μm ~ 15 μm.
Particularly, punch forming temperature is 800 DEG C ~ 850 DEG C, and hot rolling temperature is 800 DEG C ~ 850 DEG C, and tin coating thickness is 15 μm ~ 20 μm.
Particularly, punch forming temperature is 750 DEG C ~ 830 DEG C; Hot rolling temperature is 750 DEG C ~ 830 DEG C, and tin coating thickness is 15 μm ~ 20 μm.
Particularly, punch forming temperature is 750 DEG C; Hot rolling temperature is 750 DEG C, and silver coating thickness is 40 μm.
Adopt power transmission and transforming equipment anchor ear wire clamp and the manufacture method thereof of technique scheme, the anchor ear wire clamp service life adopting the method to prepare is longer, and integrated cost is lower, has following feature:
1. adopt T1 or T2 fine copper to manufacture material as anchor ear wire clamp;
2. adopt punching press and hot rolling deformation technique as the moulding process of anchor ear wire clamp, punching press and hot rolling shaping after without the need to subsequent heat treatment;
3. this anchor ear wire clamp uniform composition, dense structure, without casting flaw;
4. this anchor ear wire clamp tensile strength can reach 180-200MPa, is better than the casting brass anchor ear wire clamp of active service;
5. the unstressed tearing tendency of this anchor ear wire clamp;
6. this anchor ear wire clamp conductance can reach more than 97%ICAS, and far above the conductance of brass, the current capacity under same specification condition comparatively casting brass anchor ear wire clamp is stronger;
7. can according to power transmission and transforming equipment requirement, selectivity tapping on anchor ear manufactures screw thread.
8. can take different process of surface treatment according to Service Environment, wire clamp surface adopts zinc-plated process can obtain good corrosion resistance, and surface adopts silver-plated process can reduce wire clamp surface contacted resistance.
9. this anchor ear wire clamp manufacturing process is ripe, and yields is higher, and cost is controlled, is conducive to large-scale production.
10. this anchor ear wire clamp can carry out Non-Destructive Testing in scene, easy to detect, by conductivity test, hardness determination, dimensional measurement 3 inspection, can control anchor ear wire clamp quality.
By changing manufacture material and the manufacturing process of anchor ear wire clamp, thoroughly solve the fracture difficult problem that anchor ear wire clamp occurs in running.Fine copper is adopted to manufacture material as anchor ear wire clamp, owing to substantially there is no other alloying elements in alloy, therefore wire clamp each several part uniform composition, and the unstressed tearing tendency of fine copper, conductance is excellent, and mechanical property more traditional anchor ear wire clamp is more excellent; Adopt punching press and hot rolling moulding process to manufacture anchor ear wire clamp, wire clamp dense structure, detect means of checking on also more simple.
Compared with prior art, the beneficial effect that the present invention has is: anchor ear wire clamp electric conductivity of the present invention is excellent, and mechanical property is higher than conventional cast brass ring wire clamp; Cost is controlled, and yields is higher, detects and checks on simply efficiently.
In sum, the present invention is that one there will not be fracture power transmission and transforming equipment anchor ear wire clamp under arms in process.This anchor ear wire clamp adopts the manufacture of fine copper material, and moulding process is that punching press and hot rolling are shaping, does not need subsequent heat treatment after shaping, and preparation technology is simple, has higher production efficiency.
Accompanying drawing explanation
Fig. 1 is not threaded anchor ear cable clamp structure front view.
Fig. 2 is not threaded anchor ear cable clamp structure left view.
Fig. 3 is not threaded anchor ear cable clamp structure vertical view.
Fig. 4 is threaded anchor ear cable clamp structure front view.
Fig. 5 is threaded anchor ear cable clamp structure left view.
Fig. 6 is threaded anchor ear cable clamp structure vertical view.
Embodiment
Below in conjunction with drawings and Examples to this and further illustrate.
Embodiment 1:
See Fig. 1, Fig. 2 and Fig. 3, select cold rolling T2 fine copper as the manufacture material of anchor ear, first carry out punch forming to sizeable Cold-rolled Pure copper billet, process the bolt hole embracing ear and drainage plate, punch forming temperature is 800 DEG C; Then adopt hot coil process, hot rolling temperature is 800 DEG C, rolls out the anchor ear of anchor ear wire clamp, directly by finished product air cooling after hot rolling; Finally carry out zinc-plated process to finished surface, silver coating thickness is 20 μm, finally carries out tapping process, at anchor ear part manufacture place internal thread.Anchor ear wire clamp of the present invention is adopted in the leading-out terminal A phase of Hunan Electric Grid 110kV main transformer of transformer substation.
Embodiment 2:
See Fig. 4, Fig. 5 and Fig. 6, select cold rolling T2 fine copper as the manufacture material of anchor ear, first carry out punch forming to sizeable Cold-rolled Pure copper billet, process the bolt hole embracing ear and drainage plate, punch forming temperature is 830 DEG C; Then adopt hot coil process, hot rolling temperature is 800 DEG C, rolls out the anchor ear of anchor ear wire clamp, directly by finished product air cooling after hot rolling; Finally carry out zinc-plated process to finished surface, tin coating thickness is 15 μm.Anchor ear wire clamp of the present invention is adopted at Hunan Electric Grid 110kV transformer station instrument transformer input terminal.
Embodiment 3:
See Fig. 1, Fig. 2 and Fig. 3, select cold rolling T2 fine copper as the manufacture material of anchor ear, first carry out punch forming to sizeable Cold-rolled Pure copper billet, process the bolt hole embracing ear and drainage plate, punch forming temperature is 750 DEG C; Then adopt hot coil process, hot rolling temperature is 750 DEG C, rolls out the anchor ear of anchor ear wire clamp, directly by finished product air cooling after hot rolling; Finally carry out zinc-plated process to finished surface, silver coating thickness is 40 μm, finally carries out tapping process, at anchor ear part manufacture place internal thread.Anchor ear wire clamp of the present invention is adopted in the leading-out terminal A phase of Hunan Electric Grid 110kV main transformer of transformer substation.
Embodiment 4:
See Fig. 4, Fig. 5 and Fig. 6, select cold rolling T2 fine copper as the manufacture material of anchor ear, first carry out punch forming to sizeable Cold-rolled Pure copper billet, process the bolt hole embracing ear and drainage plate, punch forming temperature is 850 DEG C; Then adopt hot coil process, hot rolling temperature is 800 DEG C, rolls out the anchor ear of anchor ear wire clamp, directly by finished product air cooling after hot rolling; Finally carry out zinc-plated process to finished surface, tin coating thickness is 18 μm.
Embodiment 5:
See Fig. 1, Fig. 2 and Fig. 3, select cold rolling T2 fine copper as the manufacture material of anchor ear, first carry out punch forming to sizeable Cold-rolled Pure copper billet, process the bolt hole embracing ear and drainage plate, punch forming temperature is 850 DEG C; Then adopt hot coil process, hot rolling temperature is 850 DEG C, rolls out the anchor ear of anchor ear wire clamp, directly by finished product air cooling after hot rolling; Finally carry out zinc-plated process to finished surface, tin coating thickness is 20 μm, finally carries out tapping process, at anchor ear part manufacture place internal thread.
Embodiment 6:
See Fig. 4, Fig. 5 and Fig. 6, select cold rolling T2 fine copper as the manufacture material of anchor ear, first carry out punch forming to sizeable Cold-rolled Pure copper billet, process the bolt hole embracing ear and drainage plate, punch forming temperature is 830 DEG C; Then adopt hot coil process, hot rolling temperature is 840 DEG C, rolls out the anchor ear of anchor ear wire clamp, directly by finished product air cooling after hot rolling; Finally carry out zinc-plated process to finished surface, tin coating thickness is 12 μm.
Claims (10)
1. a power transmission and transforming equipment anchor ear wire clamp, is made up of drainage plate, armful ear and fastening bolt, it is characterized in that: described drainage plate and armful ear adopt a fine copper to form through punch forming, hot rolling distortion and zinc-plated or silver-plated manufacture.
2. power transmission and transforming equipment anchor ear wire clamp according to claim 1, is characterized in that: described fine copper is cold rolling T1, T2 fine copper.
3. the method for anchor ear wire clamp of the power transmission and transforming equipment described in manufacturing claims 1, is characterized in that: first carry out punch forming to sizeable Cold-rolled Pure copper billet, and process the bolt hole embracing ear and drainage plate, punch forming temperature is 750 DEG C ~ 850 DEG C; Then adopt hot coil process, hot rolling temperature is 750 DEG C ~ 850 DEG C, rolls out the anchor ear of anchor ear wire clamp, directly by finished product air cooling after hot rolling; Finally carry out zinc-plated process or silver-plated process to finished surface, tin coating thickness is 12 μm ~ 20 μm, and silver coating thickness is 20 μm ~ 40 μm.
4. the method for manufacture power transmission and transforming equipment anchor ear wire clamp according to claim 3, is characterized in that: on anchor ear, tapping manufactures screw thread.
5. the manufacture power transmission and transforming equipment method of anchor ear wire clamp according to claim 3 or 4, is characterized in that: punch forming temperature is 800 DEG C, and hot rolling temperature is 800 DEG C, and silver coating thickness is 20 μm.
6. the manufacture power transmission and transforming equipment method of anchor ear wire clamp according to claim 3 or 4, is characterized in that: punch forming temperature is 830 DEG C, and hot rolling temperature is 800 DEG C, and tin coating thickness is 15 μm.
7. the manufacture power transmission and transforming equipment method of anchor ear wire clamp according to claim 3 or 4, is characterized in that: punch forming temperature is 750 DEG C ~ 800 DEG C; Hot rolling temperature is 750 DEG C ~ 800 DEG C, and tin coating thickness is 12 μm ~ 15 μm.
8. the manufacture power transmission and transforming equipment method of anchor ear wire clamp according to claim 3 or 4, is characterized in that: punch forming temperature is 800 DEG C ~ 850 DEG C, and hot rolling temperature is 800 DEG C ~ 850 DEG C, and tin coating thickness is 15 μm ~ 20 μm.
9. the manufacture power transmission and transforming equipment method of anchor ear wire clamp according to claim 3 or 4, is characterized in that: punch forming temperature is 750 DEG C ~ 830 DEG C; Hot rolling temperature is 750 DEG C ~ 830 DEG C, and tin coating thickness is 15 μm ~ 20 μm.
10. the manufacture power transmission and transforming equipment method of anchor ear wire clamp according to claim 3 or 4, is characterized in that: punch forming temperature is 750 DEG C; Hot rolling temperature is 750 DEG C, and silver coating thickness is 40 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317385.9A CN104993256A (en) | 2015-06-11 | 2015-06-11 | Hoop clamp for power transmission and transformation equipment and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317385.9A CN104993256A (en) | 2015-06-11 | 2015-06-11 | Hoop clamp for power transmission and transformation equipment and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104993256A true CN104993256A (en) | 2015-10-21 |
Family
ID=54305033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510317385.9A Pending CN104993256A (en) | 2015-06-11 | 2015-06-11 | Hoop clamp for power transmission and transformation equipment and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104993256A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234655Y (en) * | 1995-08-23 | 1996-09-04 | 乐清市侨泰电力设备公司 | Pole grasp type equipment wire grip |
| CN201000803Y (en) * | 2007-02-02 | 2008-01-02 | 刘进生 | Transformer poles thread binding clip |
| CN202352475U (en) * | 2011-11-08 | 2012-07-25 | 重庆德普电气有限公司 | Wire clamp special for transformer |
| CN202868079U (en) * | 2012-06-20 | 2013-04-10 | 江西省电力科学研究院 | Current transformer pole clip for high-voltage transmission line |
| CN203941859U (en) * | 2014-07-23 | 2014-11-12 | 固力发集团有限公司 | Vacuum circuit-breaker |
| CN203950954U (en) * | 2014-06-27 | 2014-11-19 | 深圳盛凌电子股份有限公司 | A kind of bonder terminal and connector end subgroup |
-
2015
- 2015-06-11 CN CN201510317385.9A patent/CN104993256A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234655Y (en) * | 1995-08-23 | 1996-09-04 | 乐清市侨泰电力设备公司 | Pole grasp type equipment wire grip |
| CN201000803Y (en) * | 2007-02-02 | 2008-01-02 | 刘进生 | Transformer poles thread binding clip |
| CN202352475U (en) * | 2011-11-08 | 2012-07-25 | 重庆德普电气有限公司 | Wire clamp special for transformer |
| CN202868079U (en) * | 2012-06-20 | 2013-04-10 | 江西省电力科学研究院 | Current transformer pole clip for high-voltage transmission line |
| CN203950954U (en) * | 2014-06-27 | 2014-11-19 | 深圳盛凌电子股份有限公司 | A kind of bonder terminal and connector end subgroup |
| CN203941859U (en) * | 2014-07-23 | 2014-11-12 | 固力发集团有限公司 | Vacuum circuit-breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103469019A (en) | Aluminum alloy cable core and method for preparing same | |
| CN106653154A (en) | High-strength aluminum-clad steel wire and production method thereof | |
| CN101944674A (en) | Manufacturing method of copper-aluminum composite terminal and composite terminal manufactured thereby | |
| CN103555991B (en) | A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof | |
| CN1804073A (en) | High-strength electro-conductive copper alloy wire and production method thereof | |
| CN102682921B (en) | Continuous two-stage annealing method for aluminum-magnesium alloy | |
| CN103606422B (en) | A kind of preparation method of high-strength high-conductivity copper-silver multi-core composite wire | |
| CN112614624A (en) | Production method of non-compacted special-shaped stranded high-conductivity copper conductor | |
| CN102527768A (en) | Manufacturing method of copper-clad aluminum pipe | |
| CN101478092A (en) | Conductive bar and manufacturing method thereof | |
| CN103131886A (en) | Chromium/zirconium/iron/copper alloy electrode material, and preparation and application method thereof | |
| CN104993256A (en) | Hoop clamp for power transmission and transformation equipment and manufacturing method thereof | |
| CN102296205A (en) | Electroplated nickel-copper alloy lead | |
| CN102709072A (en) | Copper-aluminum composite bus of current-carrying conductor of medium-voltage isolation switch and preparation method thereof | |
| CN201204070Y (en) | Novel composite metal material | |
| CN104264010A (en) | High-strength aluminum alloy wire and preparation method thereof | |
| CN109903889A (en) | A kind of creep resistant high-conductivity copper-clad aluminum alloy conductor and preparation method thereof | |
| CN201359860Y (en) | Paper covered copper-silver alloy composite conductor | |
| CN201975317U (en) | Copper aluminum composite bar for current-carrying conductor of medium-voltage isolating switch | |
| CN103949644B (en) | A kind of preparation method of high-strength highly-conductive high-ductility fine copper bar | |
| CN104751983B (en) | A kind of intelligent grid ultra-high voltage transformer station diameter enlarging bus bar and its manufacture method | |
| JP2013119660A (en) | Aluminum alloy wire and method for manufacturing the same, and coil | |
| CN103545010B (en) | Non-aged aluminum alloy wire and manufacture method thereof | |
| CN201812945U (en) | Transition connecting terminal for connecting aluminium and copper by adopting compounding of exploding and fusion-casting | |
| CN201440341U (en) | Water-cooling copper bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
|
| RJ01 | Rejection of invention patent application after publication |