CN103831519B - A kind of small diameter tube extruding sealing actuating unit with pressure balance function - Google Patents
A kind of small diameter tube extruding sealing actuating unit with pressure balance function Download PDFInfo
- Publication number
- CN103831519B CN103831519B CN201410115686.9A CN201410115686A CN103831519B CN 103831519 B CN103831519 B CN 103831519B CN 201410115686 A CN201410115686 A CN 201410115686A CN 103831519 B CN103831519 B CN 103831519B
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- Prior art keywords
- clamp
- cylinder
- valve
- pressure
- small diameter
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 44
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 11
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 11
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 23
- 239000000463 material Substances 0.000 description 4
- 239000000565 sealant Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/02—Pressure butt welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Gasket Seals (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention provides a kind of small diameter tube extruding sealing actuating unit with pressure balance function.Two clamping heads in described device and two electrode tips to be separately fixed on four quick change seats that the insulation board that is connected with cylinder supports by clamp nut and to be driven respectively by four cylinders, two clamping heads are connected with two seal chambers respectively, formation annular seal space after two seal chambers close up, the extruding sealing of small diameter tube realizes exactly in annular seal space, annular seal space is clamped by the clamp with safeguard construction, the sealing of annular seal space adopts high-pressure sealing chamber, the sealing means that integral rubber sealing gasket and local polytetrafluoroethylene sealing gasket combine, two conduction soft copper bands ensure that two electrode tip movement needs, high-pressure gas circuit system is to air feed in annular seal space, small diameter tube internal and external pressure balance when ensureing to weld.
Description
Technical field
The invention belongs to welding field, be specifically related to a kind of small diameter tube extruding sealing actuating unit with pressure balance function.The present invention can realize the extruding sealing of managing interior pressurising small diameter tube.
Background technology
Extrude in the process of pressurising small diameter tube in sealing pipe under atmospheric pressure environment, make the melting of small diameter tube pad soften due to electrode discharge, now conduit may hold because the strength of materials reduces and can't stand pressure differential inside and outside small diameter tube and burst, and damages operator.Have no the report of pressurising small diameter tube extruding sealing in pipe at present.
Summary of the invention
The object of the present invention is to provide a kind of small diameter tube extruding sealing actuating unit with pressure balance function.Feature of the present invention is by setting up annular seal space, and when to make in pipe pressurising small diameter tube extruding sealing, small diameter tube external and internal pressure reaches balance, for safety operation provides safeguard.
In order to avoid the generation of this type of event, the present invention sets up the annular seal space that can be filled pressed gas, in pipe, the extruding sealing of pressurising small diameter tube just carries out in this on-line pressure sealant chamber, because inside and outside small diameter tube, gas pressure reaches balance, the material that pad melting is softened can not be subject to extra air pressure and burst, and operator can work contentedly.
The small diameter tube extruding sealing actuating unit of band pressure balance function of the present invention comprises cylinder supports framework, cylinder I, cylinder II, cylinder III, cylinder IV, annular seal space, clamping head I, clamping head II, electrode tip I, electrode tip II, quick change seat, insulation board, locking mechanism clamp, conduction soft copper band I, conduction soft copper band II, high-pressure gas circuit system etc.; Annular seal space comprises seal chamber I, seal chamber II, alignment pin, rubber gasket, polytetrafluoroethylene sealing gasket, flange, high-pressure seal ring, holding screw; Locking mechanism clamp comprises clamp seat I, clamp seat II, bearing pin I, pin shaft II, clamp handle, spring, locking axle, locking handle, adjusting nut, U-shaped clamp shaft; High-pressure gas circuit system comprises gas cylinder, band Pressure gauge pressure-reducing valve, safety valve, three-way connection I, three-way connection II, three-way connection III, three-way connection IV, valve I, valve II, valve III, valve IV, high-pressure hose, Pressure gauge.Described clamping head I, clamping head II, electrode tip I, electrode tip II are separately fixed on four quick change seats by clamp nut, four quick change seats and four insulation boards be separately fixed on cylinder I, II, III, IV are connected, during such sealing, electric current can not pass on cylinder, ensure that safety during work; High-pressure seal ring is placed in the seal groove in seal chamber II by flange, clamping head I also coordinates with it through high-pressure seal ring, flat groove on holding screw on flange and clamping head I ensure that the relative motion of seal chamber II and clamping head I axis, and clamping head I and seal chamber II can be made to be connected, whole seal chamber II is supported by clamping head I.The structure of seal chamber I is the same with seal chamber II, just seal chamber I is connected to high-pressure gas circuit, seals the charge and discharge of intracavity gas when can realize work.Sealing mainly clamping head I, clamping head II, electrode tip I, electrode tip II, the interior pressurising small diameter tube of pipe and the sealing between seal chamber I and seal chamber II of annular seal space.Clamping head I and clamping head II high-pressure seal ring seal; Electrode tip I and electrode tip II are movable sealing, and be embedded in integral rubber sealing gasket with polytetrafluoroethylene sealing gasket and realize, rubber has good retractility, and polytetrafluoroethylene (PTFE) lubricity is fine, the axially-movable of suitable electrode head; Sealing in pipe between pressurising small diameter tube and seal chamber I, II adopts integral rubber pad to realize.Clamp seat I is fixed on seal chamber II two sides, clamp seat II is fixed on seal chamber I two sides, clamp handle passes through bearing pin I hinge on clamp seat II, U-shaped clamp shaft by pin shaft II and adjusting nut hinge on clamp handle, by the clamping force regulating adjusting nut position can also adjust U-shaped clamp shaft.After seal chamber I, seal chamber II close up, the position of adjustment clamp handle, U-shaped clamp shaft is made to be overlapped on clamp seat II, after down rotating clamp lever to vertical position, the fastening formation annular seal space of seal chamber I, II, locking handle is mentioned locking axle in the flat groove of insertion clamp seat I, and clamp handle is fixed, thus plays the locking effect of clamp.
Accompanying drawing explanation
Fig. 1 is the small diameter tube extruding sealing actuating unit structural representation of band pressure balance function of the present invention;
To be that the on-line pressure sealant chamber in the present invention is main cut open structural representation to Fig. 2;
Fig. 3 is that structural representation is cutd open on the left side, on-line pressure sealant chamber in the present invention;
Fig. 4 is the high-pressure gas circuit structural representation in the present invention;
In figure, 1. cylinder supports framework 2. cylinder I 3. electrode tip I 4. clamping head I 5. cylinder II 6. annular seal space 7. clamp nut 8. quick change seat 9. insulation board 10. cylinder III 11. conduction soft copper band I 12. locking mechanism clamp 13. electrode tip II 14. clamping head II 15. cylinder IV 16. gas circuit jointing 17. high-pressure gas circuit system 18. is conducted electricity the soft passband II 19. seal chamber I 20. rubber gasket 21. polytetrafluoroethylene sealing gasket 22. seal chamber II 23. flange 24. holding screw 25. alignment pin 26. high-pressure seal ring 27. clamp seat I 28. clamp seat II 29. bearing pin I 30. pin shaft II 31. clamp handle 32. locking axle 34. of spring 33. locking handle 35. adjusting nut 36.U clevis mandrel 37. gas cylinder 38. and is with Pressure gauge pressure-reducing valve 39. safety valve 40. three-way connection I 41. valve I 42. three-way connection II 43. valve II 44. three-way connection III 45. valve III 46. high-pressure hose 47. valve IV 48. three-way connection IV 49. Pressure gauge.
Detailed description of the invention
As shown in Figure 1, the present invention is a kind of small diameter tube extruding sealing actuating unit with pressure balance function, comprises cylinder supports framework 1, cylinder I 2, electrode tip I 3, clamping head I 4, cylinder II 5, annular seal space 6, clamp nut 7, quick change seat 8, insulation board 9, cylinder III 10, conduction soft copper band I 11, locking mechanism clamp 12, electrode tip II 13, clamping head II 14, cylinder IV 15, gas circuit jointing 16, high-pressure gas circuit system 17, conduction soft copper band I 11, conduction soft copper band II 18; Described electrode tip I 3, electrode tip II 13, clamping head I 4, clamping head II 14 to be separately fixed on cylinder I 2, cylinder III 10, cylinder II 5, cylinder IV 15 by clamp nut 7, quick change seat 8, insulation board 9 and to be driven by it, four cylinders are separately fixed on four side plates of cylinder supports framework 1, four insulation boards 9 make extruding sealing region and four cylinders insulate, and the security of operator is guaranteed; Conduction soft copper band I 11 and conduction soft copper band II 18 one end are fixed on cylinder III 10 and cylinder I 2, and the other end is connected with the two poles of the earth of power supply; High-pressure gas circuit system 17 is connected with annular seal space 6 by gas circuit jointing 16.
As shown in Figure 2, described annular seal space 6 comprises seal chamber I 19, rubber gasket 20, polytetrafluoroethylene sealing gasket 21, seal chamber II 22, flange 23, holding screw 24, alignment pin 25, high-pressure seal ring 26; Annular seal space 6 closes up rear formation by seal chamber I 19 and seal chamber II 22, seal chamber II 22 is connected with clamping head I 4 by the holding screw 24 on the flange 23 that is connected thereon, clamping head I 4 is connected with cylinder II 5 by clamp nut 7, quick change seat 8, insulation board 9 and is driven by it, in like manner seal chamber I 19 is connected with clamping head II 14, and clamping head II 14 is connected with cylinder IV 15 by clamp nut 7, quick change seat 8, insulation board 9 and is driven by it; Alignment pin 25 and seal chamber I 19 interference fit, with seal chamber II 22 matched in clearance; The faying face of seal chamber I 19 and seal chamber II 22 has pasted integral rubber sealing gasket 20 respectively, and on the rubber gasket 20 of movable sealing place of electrode tip I 3 and electrode tip II 13, polytetrafluoroethylene sealing gasket 21 has been inlayed in local.
As shown in Figure 3, described locking mechanism clamp 12 comprises clamp seat I 27, clamp seat II 28, bearing pin I 29, pin shaft II 30, clamp handle 31, spring 32, locking axle 33, locking handle 34, adjusting nut 35, U-shaped clamp shaft 36; Clamp seat I 27 and clamp seat II 28 are separately fixed on the both sides sidewall of seal chamber II 2 and envelope cavity I 19, clamp handle 31 is connected on clamp seat II 28 by bearing pin I 29, U-shaped clamp shaft 36 is connected with the pin shaft II 30 on clamp handle 31, and regulate also tight by adjusting nut 35, locking axle 33 is arranged on clamp handle 31, locking handle 34 on clamp handle 31 can drive locking axle 33 axis to stretch, and the retraction of locking axle 33 is realized by spring 32.
As shown in Figure 4, described high-pressure gas circuit system 17 comprises gas cylinder 37, band Pressure gauge pressure-reducing valve 38, safety valve 39, three-way connection I 40, valve I 41, three-way connection II 42, valve II 43, three-way connection III 44, valve III 45, high-pressure hose 46, valve IV 47, three-way connection IV 48, Pressure gauge 49; All to be connected by steel pipe between the gas cylinder 37 of high-pressure gas circuit system 17, band Pressure gauge pressure-reducing valve 38, four three-way connections, four valves and by screw thread or cutting ferrule screw threads for fastening, safety valve 39 and Pressure gauge 49 are fixed on three-way connection by screw thread, open valve I 41 and valve IV 47, valve-off II 43 simultaneously, can to small diameter tube workpiece air feed; Open valve I 41 and valve II 43, simultaneously valve-off III 45 and valve IV 47, can to air feed in annular seal space 6.
The duty of a kind of small diameter tube extruding sealing actuating unit with pressure balance function of the present invention is such: during off working state, seal chamber I 19 and seal chamber II 22 points are opened, and electrode tip I 3 and electrode tip II 13 points are opened; During work, first pressurising small diameter tube workpiece in pipe is placed on welding position, then cylinder II 5 and cylinder IV 15 drive clamping head I 4 and clamping head II 14 and seal chamber I 19 and seal chamber II 22 thereof to move respectively, until in clamping head I 4 and clamping head II 14 pinch tube pressurising small diameter tube workpiece only, seal chamber I 19 and seal chamber II 22 ensure mutual alignment relation by alignment pin 25; Rotating clip clamp holder 31 makes U-shaped clamp shaft 36 hook clamp seat I 27, after clamp handle 31 is rotated in place, rubber gasket 20 between seal chamber I 19 and seal chamber II 22 and polytetrafluoroethylene sealing gasket 21 are compressed and achieve the sealing of annular seal space 6, rotating locking handle 34 afterwards makes locking axle 33 stretch in the groove of clamp seat II 28, clamp handle 31 can not be rotated when work with pressure, ensure that safety; Regulate band Pressure gauge pressure-reducing valve 38 and safety valve 39, valve-off III 45 and valve IV 47, open valve I 41 and valve II 43, opens gas cylinder 37 afterwards and supply high voltage protective gas to annular seal space 6; After in pipe, pressurising small diameter tube external and internal pressure reaches balance, cylinder I 2 and cylinder III 10 respectively drive electrode head I 3 and electrode tip II 13 travel forward and push down pressurising small diameter tube in pipe, electrode tip is energized, weld zone material at high temperature in pipe between pressurising small diameter tube electrode tip I 3 and electrode tip II 13 softens, electrode tip I 3 and electrode tip II 13 are by pressurising small diameter tube in constant force effect compressed pipe, in pipe, after the distortion of pressurising small diameter tube, pipe wall material is melted into one, thus reach the object of pressurising small diameter tube sealing in pipe, electrode tip I 3 and electrode tip II 13 power-off afterwards return; After in pipe, pressurising small diameter tube extruding sealing completes, close gas cylinder 37 or valve I 41, open valve III 45, the gases at high pressure bled off in annular seal space 6 and pipeline make its pressure and atmospheric pressure balance; Decontrol locking axle 33, rotating clamp clamp holder 31, U-shaped clamp shaft 36 and clamp seat I 27 are thrown off, and cylinder II 5 and cylinder IV 15 drive clamping head I 4 and clamping head II 14 and seal chamber II 22 and seal chamber I 19 thereof to get back to initial position respectively, complete a welding process.
Claims (4)
1. the small diameter tube extruding sealing actuating unit with pressure balance function, it is characterized in that: described device comprises cylinder supports framework (1), cylinder I (2), electrode tip I (3), clamping head I (4), cylinder II (5), annular seal space (6), clamp nut (7), quick change seat (8), insulation board (9), cylinder III (10), conduction soft copper band I (11), locking mechanism clamp (12), electrode tip II (13), clamping head II (14), cylinder IV (15), gas circuit jointing (16), high-pressure gas circuit system (17), conduction soft copper band II (18), its annexation is, described electrode tip I (3), electrode tip II (13), clamping head I (4), clamping head II (14) are separately fixed at cylinder I (2), cylinder III (10), cylinder II (5) by clamp nut (7), quick change seat (8), insulation board (9), cylinder IV (15) is upper and driven by it, and four cylinders are separately fixed on four side plates of cylinder supports framework (1), one end of conduction soft copper band I (11), conduction soft copper band II (18) is separately fixed on the quick change seat (8) on cylinder III (10), cylinder I (2), and the other end is connected with the two poles of the earth of power supply respectively,
Described annular seal space (6) comprises seal chamber I (19), rubber gasket (20), polytetrafluoroethylene sealing gasket (21), seal chamber II (22), flange (23), holding screw (24), alignment pin (25), high-pressure seal ring (26); Described seal chamber II (22) is connected with clamping head I (4) by the holding screw (24) on the flange (23) that is connected thereon, and clamping head I (4) to be connected with cylinder II (5) by clamp nut (7), quick change seat (8), insulation board (9) and to be driven by it; Alignment pin (25) and seal chamber I (19) interference fit, with seal chamber II (22) matched in clearance;
Described locking mechanism clamp (12) comprises clamp seat I (27), clamp seat II (28), bearing pin I (29), pin shaft II (30), clamp handle (31), spring (32), locking axle (33), locking handle (34), adjusting nut (35), U-shaped clamp shaft (36), described clamp seat I (27), clamp seat II (28) is separately fixed at seal chamber II (2), on the both sides sidewall of envelope cavity I (19), clamp handle (31) is connected on clamp seat II (28) by bearing pin I (29), U-shaped clamp shaft (36) is connected with the pin shaft II (30) on clamp handle (31), and regulate also tight by adjusting nut (35), locking axle (33) is arranged on clamp handle (31), locking handle (34) on clamp handle (31) drives locking axle (33) axis to stretch, spring (32) is for realizing the retraction of locking axle (33).
2. the small diameter tube extruding sealing actuating unit of band pressure balance function according to claim 1, is characterized in that: described high-pressure gas circuit system (17) comprises gas cylinder (37), band Pressure gauge pressure-reducing valve (38), safety valve (39), three-way connection I (40), valve I (41), three-way connection II (42), valve II (43), three-way connection III (44), valve III (45), high-pressure hose (46), valve IV (47), three-way connection IV (48), Pressure gauge (49); All to be connected by steel pipe between the gas cylinder (37) of high-pressure gas circuit system (17), band Pressure gauge pressure-reducing valve (38), four three-way connections, four valves and by screw threads for fastening, safety valve (39) and Pressure gauge (49) are fixed on three-way connection by screw thread, open valve I (41) and valve IV (47), valve-off II (43) simultaneously, can to small diameter tube workpiece air feed; Open valve I (41) and valve II (43), simultaneously valve-off III (45) and valve IV (47), can to annular seal space (6) interior air feed.
3. the small diameter tube extruding sealing actuating unit of band pressure balance function according to claim 2, is characterized in that: described screw threads for fastening is cutting ferrule screw threads for fastening.
4. the small diameter tube extruding sealing actuating unit of band pressure balance function according to claim 1, is characterized in that: the described polytetrafluoroethylene sealing gasket (21) contacted with electrode tip I (3), electrode tip II (13) is embedded in rubber gasket (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115686.9A CN103831519B (en) | 2014-03-26 | 2014-03-26 | A kind of small diameter tube extruding sealing actuating unit with pressure balance function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115686.9A CN103831519B (en) | 2014-03-26 | 2014-03-26 | A kind of small diameter tube extruding sealing actuating unit with pressure balance function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103831519A CN103831519A (en) | 2014-06-04 |
| CN103831519B true CN103831519B (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410115686.9A Expired - Fee Related CN103831519B (en) | 2014-03-26 | 2014-03-26 | A kind of small diameter tube extruding sealing actuating unit with pressure balance function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103831519B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111185657B (en) * | 2020-01-14 | 2022-03-25 | 西华大学 | Cladding tube electrode and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07136770A (en) * | 1993-11-16 | 1995-05-30 | Origin Electric Co Ltd | Equipment and method for resistance welding for airtight sealing |
| CN1127882A (en) * | 1994-09-12 | 1996-07-31 | 株式会社生方制作所 | Apparatus for making hermetic sensor |
| CN2730539Y (en) * | 2005-05-13 | 2005-10-05 | 江阴市长盛机械有限公司 | Resistance welder for ball shape linkage-bar and pushing-bar |
| CN1951619A (en) * | 2005-10-18 | 2007-04-25 | 甘志银 | Vacuum fusion welding packaging method and packaging device |
| CN102528258A (en) * | 2012-01-11 | 2012-07-04 | 西北工业大学 | Multi-wire copper harness end forming device and forming method thereof |
| CN103358002A (en) * | 2013-06-25 | 2013-10-23 | 欧托凯勃汽车线束（太仓）有限公司 | Electric resistance welding equipment and method for welding end part of flat copper braided belt |
| CN103624425A (en) * | 2013-11-18 | 2014-03-12 | 中国石油天然气集团公司 | Internal pressure balance adjusting system based on connector pipeline |
-
2014
- 2014-03-26 CN CN201410115686.9A patent/CN103831519B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07136770A (en) * | 1993-11-16 | 1995-05-30 | Origin Electric Co Ltd | Equipment and method for resistance welding for airtight sealing |
| CN1127882A (en) * | 1994-09-12 | 1996-07-31 | 株式会社生方制作所 | Apparatus for making hermetic sensor |
| CN2730539Y (en) * | 2005-05-13 | 2005-10-05 | 江阴市长盛机械有限公司 | Resistance welder for ball shape linkage-bar and pushing-bar |
| CN1951619A (en) * | 2005-10-18 | 2007-04-25 | 甘志银 | Vacuum fusion welding packaging method and packaging device |
| CN102528258A (en) * | 2012-01-11 | 2012-07-04 | 西北工业大学 | Multi-wire copper harness end forming device and forming method thereof |
| CN103358002A (en) * | 2013-06-25 | 2013-10-23 | 欧托凯勃汽车线束（太仓）有限公司 | Electric resistance welding equipment and method for welding end part of flat copper braided belt |
| CN103624425A (en) * | 2013-11-18 | 2014-03-12 | 中国石油天然气集团公司 | Internal pressure balance adjusting system based on connector pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103831519A (en) | 2014-06-04 |
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