CN107052149A - A kind of moulding process of GIL/GIS bus shells - Google Patents
A kind of moulding process of GIL/GIS bus shells Download PDFInfo
- Publication number
- CN107052149A CN107052149A CN201710213043.1A CN201710213043A CN107052149A CN 107052149 A CN107052149 A CN 107052149A CN 201710213043 A CN201710213043 A CN 201710213043A CN 107052149 A CN107052149 A CN 107052149A
- Authority
- CN
- China
- Prior art keywords
- gil
- alloy plate
- moulding process
- housing
- bus
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
Abstract
The present invention relates to a kind of moulding process of GIL/GIS bus shells, it is characterised in that comprises the following steps：Step 1：The square or rectangular sheet material being equal or approximate to is determined in aluminum alloy plate materials；Step 2：By the aluminium alloy plate timber-used folder bidirectional feeding cut, feeding feed rate is 200mm/min~10000mm/min；Step 3：By the aluminum alloy plate materials cut point multistage, it is equal or approximately equal per segment distance, and the aluminum alloy plate materials cut are equidistantly rolled over mould justify into housing, every section of pressure more than 2 times；Bending head workpiece pressing time >=2 second of the folder, the pressure head feed rate of the folder is 150mm/min~3000mm/min；Step 4：Flash removed and clean surface are gone into the polishing of housing commissure；Step 5：Housing commissure is subjected to tack welding.The present invention has the advantages that efficiency high, steady quality.
Description
Technical field
Manufacture field the present invention relates to ultra-high-tension power transmission line housing, particularly it is a kind of be used for high voltage (110kV~
1100kV) the moulding process of GIL, GIS bus shell.
Background technology
Al-alloy casing typically uses edge rolling-melting welding-correction moulding process.But it is due to veneer reeling machine stroke limiting, market
On conventional veneer reeling machine can roll up length and be generally less than 6 meters, when length is more than 6 meters, the rigidity of roller is difficult to ensure that, while in design
When consider roller equal strength generally require roller being designed to olive shape so that cause housing two ends deviation from circular from be more than 4mm,
It is difficult to meet actual process requirements.
Existing major diameter in the industry, the production method of long length GIL, GIS Al-alloy casing are typically extruding, spinning (spiral
Welded tube) and the mode such as three rollers, four-roller roll bending.Fashion of extrusion is squeezed efficiency, the limitation of extruding when extrusion equipment etc., at present
The wall thickness that can be extruded in the world is also no more than Φ 700mm in 10~50mm maximum gauge.Spinning and three rollers, four-roller roll bending energy handle
The enlarged diameter of housing is extruded, but the length that can be processed is restricted, and efficiency also than relatively low, therefore, is also not suitable for high-volume
Produce thin-wall pipes.For that purpose it is necessary to have a kind of suitable major diameter of high reliability, long length GIL/GIS aluminum alloy casing pipelines
Moulding process, guarantee can produce high accuracy, high intensity, high voltage bearing GIL, GIS Al-alloy casing.
The content of the invention
In order to solve the above problems, the present invention proposes a kind of moulding process of GIL/GIS bus shells, and its feature exists
In comprising the following steps：
Step 1：The square or rectangular sheet material being equal or approximate to is determined in aluminum alloy plate materials；
Step 2：By the aluminium alloy plate timber-used folder bidirectional feeding cut, feeding feed rate be 200mm/min~
10000mm/min；
Step 3：By the aluminum alloy plate materials cut point multistage, it is equal or approximately equal per segment distance, and use shaping mould
Tool, which equidistantly rolls over the aluminum alloy plate materials cut, justifies into housing, and every section is pressed more than 2 times；The bending head workpiece pressing of the folder
Time >=2 second, the pressure head feed rate of the folder is 150mm/min~3000mm/min；
Step 4：Flash removed and clean surface are gone into the polishing of housing commissure；
Step 5：Housing commissure is subjected to tack welding.
Further, the length of the bus shell is 3000mm~20000mm.
Further, the bus shell is a diameter of
Further, it is punch-pin that the bender, which includes mould on upper and lower mould, mould, and punch-pin radian is equal to
Or the inwall radian of the approximate bus shell；Mould is outside cavity plate, the approximate bus shell of cavity plate radian under mould
Wall radian.
Further, the depth of the cavity plate is slightly larger than the outer wall depth of the bus shell, and it is 1~1.5 to take coefficient.
Further, also include the bus shell loading onto progress school circle in school sired results before step 5.
Further, the aluminum alloy plate materials are almag, alusil alloy, aldray.
The beneficial effects of the present invention are：
The present invention is rolled over by the way of equidistant bending justifies into housing, solves major diameter
Long length (3000mm~20000mm) GIL/GIS Al-alloy casings because unbalance stress deform the problem of, and machining accuracy it is high,
Efficiency high, steady quality.
The stroke (length) of folding circle processing is much larger than the stroke of edge rolling, can process more than 3m housing, it is possible to reduce defeated
The connection quantity of housing, reduces cost in electric line.
The housing profile finishing of folding circle processing is without projection, and molded appearance is far better than spiral forming housing.
Embodiment
A kind of moulding process embodiment of GIL/GIS bus shells of the invention is described in detail below, should
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention, and those skilled in the art are various etc. to the present invention's
The modification of valency form falls within the application appended claims limited range.
A kind of moulding process of GIL/GIS bus shells, comprises the following steps：Step 1：Determined in aluminum alloy plate materials
In or approximate square or rectangular sheet material.Aluminum alloy plate materials are almag, alusil alloy, aldray；
Step 2：By the aluminium alloy plate timber-used folder bidirectional feeding cut, feeding feed rate be 200mm/min~
10000mm/min；
Step 3：By the aluminum alloy plate materials cut point multistage, it is equal or approximately equal per segment distance, and use shaping mould
Tool, which equidistantly rolls over the aluminum alloy plate materials cut, justifies into housing, and every section is pressed more than 2 times；The bending head workpiece pressing of the folder
Time >=2 second, the pressure head feed rate of the folder is 150mm/min~3000mm/min.Bender includes upper and lower shaping
Mould is punch-pin on mould, mould, and punch-pin radian is equal or approximate to the inwall radian of the bus shell；Mould under mould
For cavity plate, the outer wall radian of the approximate bus shell of cavity plate radian.The depth of cavity plate is slightly larger than the outer wall depth of bus shell, takes and is
Number is 1~1.5；
Step 4：Flash removed and clean surface are gone into the polishing of housing commissure.Bus shell is loaded onto into progress school in school sired results
Circle；
Step 5：Housing commissure is subjected to tack welding, the length of the bus shell being finally molded for 3000mm~
20000mm, bus shell it is a diameter of
Embodiment 1：
A kind of moulding process of GIL/GIS bus shells, to process(external diameter) × 8000mm housing (materials
6005-H112, wall thickness 10mm) exemplified by.Concretely comprise the following steps：
Developed dimension is calculated, according to housing central diameter Size calculation spreading width：
(500-10)×3.14159≈1540
The workpiece size for being punched out strip in aluminum alloy plate materials with plate shearing machine is：8000mm×1540mm ×10mm.
By the aluminium alloy plate timber-used folder cut in the way of circular approximation, respectively from the bending of sheet material two ends, use
Bending head is repeatedly compressed, and the progressively equidistant bending of both sides feeding forms housing, and the circularity of the more housing shapings of crimping number of times is better.Folding
Trigger is the equidistant bending of both sides feeding numerical control, and the equipment can automatically form parameter according to material property, wall thickness, diameter, length and enter
The equidistant bending and molding of row.Folder feeding feed rate takes 500mm/min, and pressure head feed rate takes 150mm/min, and every section is pressed 2 times.
The bending head workpiece pressing time is 5 seconds.Thickness gauge detects thickness, and thinnest part is not less than 9mm, and commissure thickness is not less than 9.8mm.
The polishing of housing commissure is removed into seamed edge burr and clean surface.
Housing is loaded onto into progress school circle in school sired results.Workpiece commissure rivet welding shaping justify in school simultaneously after.Use mould
Model checks that joint close linearity is less than 0.5mm.
Embodiment 2：
A kind of moulding process of GIL/GIS bus shells, to process(external diameter) × 18000mm housing (materials
Matter 5083, wall thickness 12mm) exemplified by, concretely comprise the following steps：
Developed dimension is calculated, according to housing central diameter Size calculation spreading width：
(1200-10)×3.14159≈3738.5
The workpiece size for being punched out strip in aluminum alloy plate materials with plate shearing machine is：18000mm× 3738.5mm×
12mm。
By the aluminium alloy plate timber-used folder cut in the way of circular approximation, using bending head repeatedly compress bending by
Walk the equidistant bending of both sides feeding and form housing.Folder is the equidistant bending of numerical control, and the equipment can be according to material property, wall thickness, straight
Footpath, length automatically form parameter and carry out equidistant bending and molding.Folder feeding feed rate is 2000mm/min, and pressure head feed rate takes
1500mm/min, every section is pressed 2 times.
The bending head workpiece pressing time is more than 5 seconds.Thickness gauge detects thickness, and thinnest part is not less than 11mm, and commissure is thick
Degree is not less than 11.8mm.
The polishing of housing commissure is removed into seamed edge burr and clean surface.Clean surface uses acetone, alcohol, stainless steel wire
Brush, sand paper.
Housing is loaded onto into progress school circle in school sired results, while the workpiece commissure rivet welding shaping after justifying in school.School circle is laggard
Row tack welding, examines commissure, it is desirable to which 0.2mm clearance gauge plug does not enter.Model checks that commissure bus straight line degree is less than 0.2mm/
M, overall linearity is less than 0.8mm.
Embodiment 3：
A kind of moulding process of GIL/GIS bus shells, to process(external diameter) × 12000mm housing (materials
5083rd, wall thickness 10mm) exemplified by, concretely comprise the following steps：
Developed dimension is calculated, according to housing central diameter Size calculation spreading width：
(800-10)×3.14159≈2482
The workpiece size for being punched out strip in aluminum alloy plate materials with plate shearing machine is：12000mm×2482mm ×
10mm。
By the aluminium alloy plate timber-used folder cut in the way of circular approximation, using bending head repeatedly compress bending by
Walk equidistant bending and form housing.Folder is the equidistant bending of numerical control, and the equipment can be according to material property, wall thickness, diameter, length certainly
The dynamic parameter that formed carries out equidistant bending and molding.Pressure head feed rate takes 600mm/min, and every section is pressed 2 times.During bending head workpiece pressing
Between be more than 5 seconds.Thickness gauge detects thickness, and thinnest part is not less than 9mm, and commissure thickness is not less than 9.8mm.
The polishing of housing commissure is removed into seamed edge burr and clean surface.Clean surface uses acetone, alcohol, stainless steel wire
Brush, sand paper.
Housing is loaded onto into progress school circle, shaping in school sired results.Tack welding is carried out after the circle of school, commissure is examined, it is desirable to 0.2mm
Clearance gauge plug do not enter.Model checks that commissure bus straight line degree is less than 0.2mm/m, and overall linearity is less than 0.8mm.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
Claims (7)
1. a kind of moulding process of GIL/GIS bus shells, it is characterised in that comprise the following steps：
Step 1：The square or rectangular sheet material being equal or approximate to is determined in aluminum alloy plate materials；
Step 2：By the aluminium alloy plate timber-used folder bidirectional feeding cut, feeding feed rate be 200mm/min~
10000mm/min；
Step 3：By the aluminum alloy plate materials cut point multistage, it is equal or approximately equal per segment distance, and will with mould
The aluminum alloy plate materials cut, which are equidistantly rolled over, justifies into housing, and every section is pressed more than 2 times；The bending head workpiece pressing time of the folder
>=2 seconds, the pressure head feed rate of the folder was 150mm/min~3000mm/min；
Step 4：Flash removed and clean surface are gone into the polishing of housing commissure；
Step 5：Housing commissure is subjected to tack welding.
2. the moulding process of GIL/GIS bus shells according to claim 1, it is characterised in that the bus shell
Length is 3000mm~20000mm.
3. the moulding process of GIL/GIS bus shells according to claim 1, it is characterised in that the bus shell
A diameter of φ 300mm~φ 1500mm.
4. the moulding process of GIL/GIS bus shells according to claim 1, it is characterised in that the bender is included
Mould is punch-pin on upper and lower mould, mould, and punch-pin radian is equal or approximate to the inwall radian of the bus shell；Into
Type lower mould is cavity plate, the outer wall radian of the approximate bus shell of cavity plate radian.
5. the moulding process of GIL/GIS bus shells according to claim 4, it is characterised in that the depth of the cavity plate
Slightly larger than the outer wall depth of the bus shell, it is 1~1.5 to take coefficient.
6. the moulding process of GIL/GIS bus shells according to claim 1, it is characterised in that also include before step 5
The bus shell is loaded onto into progress school circle in school sired results.
7. the moulding process of GIL/GIS bus shells according to claim 1, it is characterised in that the aluminum alloy plate materials
For almag, alusil alloy, aldray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213043.1A CN107052149A (en) | 2017-04-01 | 2017-04-01 | A kind of moulding process of GIL/GIS bus shells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213043.1A CN107052149A (en) | 2017-04-01 | 2017-04-01 | A kind of moulding process of GIL/GIS bus shells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107052149A true CN107052149A (en) | 2017-08-18 |
Family
ID=59601536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710213043.1A Pending CN107052149A (en) | 2017-04-01 | 2017-04-01 | A kind of moulding process of GIL/GIS bus shells |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031747A (en) * | 2017-11-04 | 2018-05-15 | 滁州市新康达金属制品有限公司 | The drawing bending molding process and its mould of a kind of refrigerator backboard |
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| CN101898207A (en) * | 2010-07-12 | 2010-12-01 | 燕山大学 | Four-point bending progressive die forming method for large straight seam pipe blank |
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| CN105382545A (en) * | 2015-12-11 | 2016-03-09 | 河北沧海核装备科技股份有限公司 | Production equipment and technique for plate-strip dual-use continuous production straight-slit submerged-arc welded pipes |
| CN106180302A (en) * | 2016-08-15 | 2016-12-07 | 天津全智生产力促进有限公司 | A kind of sheet metal repeatedly apparatus for bending |
| CN106424355A (en) * | 2016-09-28 | 2017-02-22 | 中国南方航空工业(集团)有限公司 | Annular thin-wall part molding die and molding method |
| CN106541253A (en) * | 2017-01-18 | 2017-03-29 | 浙江鑫桦钢管有限公司 | A kind of production technology of steel pipe |
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| CN101204720A (en) * | 2007-12-10 | 2008-06-25 | 华北石油管理局第一机械厂 | Manufacture method of X80 pipeline JCOE direct sew submerged arc welding tube |
| CN102189149A (en) * | 2010-03-08 | 2011-09-21 | 湖北三环锻压设备有限公司 | Technological method for forming high-strength thick wall steel tube |
| CN101898207A (en) * | 2010-07-12 | 2010-12-01 | 燕山大学 | Four-point bending progressive die forming method for large straight seam pipe blank |
| CN105268761A (en) * | 2014-07-02 | 2016-01-27 | 天津滨创投资咨询有限公司 | Large-diameter thick-walled longitudinal submerged-arc welding pipe based on J-forming C-forming O-forming and Compression to make round (JCOC) forming process |
| CN104959785A (en) * | 2015-06-16 | 2015-10-07 | 湖南胜利湘钢钢管有限公司 | Steel tube manufacturing method |
| CN204842667U (en) * | 2015-07-08 | 2015-12-09 | 天津市信雅机械配件有限公司 | Circular arc mould is rolled over to plate |
| CN105382545A (en) * | 2015-12-11 | 2016-03-09 | 河北沧海核装备科技股份有限公司 | Production equipment and technique for plate-strip dual-use continuous production straight-slit submerged-arc welded pipes |
| CN106180302A (en) * | 2016-08-15 | 2016-12-07 | 天津全智生产力促进有限公司 | A kind of sheet metal repeatedly apparatus for bending |
| CN106424355A (en) * | 2016-09-28 | 2017-02-22 | 中国南方航空工业(集团)有限公司 | Annular thin-wall part molding die and molding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031747A (en) * | 2017-11-04 | 2018-05-15 | 滁州市新康达金属制品有限公司 | The drawing bending molding process and its mould of a kind of refrigerator backboard |
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Application publication date: 20170818 |