CN108568582A - A kind of welding method of corrugated conduit - Google Patents
A kind of welding method of corrugated conduit Download PDFInfo
- Publication number
- CN108568582A CN108568582A CN201810370844.3A CN201810370844A CN108568582A CN 108568582 A CN108568582 A CN 108568582A CN 201810370844 A CN201810370844 A CN 201810370844A CN 108568582 A CN108568582 A CN 108568582A
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- Prior art keywords
- welding
- groove
- pipeline
- bellows
- welding rod
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- 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.)
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
Abstract
The invention belongs to bellows manufacturing technology field more particularly to a kind of welding method of corrugated conduit, the first step, the inspections of pipeline, check whether the surface of pipeline has the defects of crackle, shrinkage cavity, folding, pipe；Second step：Cleaning, cleans pipeline with pipeline cleaning；Third walks, preheating, and using electric preheating, the heating of uniform stabilization is carried out to bellows；4th step, groove processing carry out groove processing to bellows；5th step, polishing, polishes to groove using sander；6th step, welding, on groove face in striking to gap, welding rod is set to make slight lateral swing in two root faces, when root face fusing iron liquid connects together with welding rod molten drop, sent on welding rod, electrode tip all reaches groove bottom edge at this time, the 2/3 of entire electric arc will be in combustion inner pipe, and first molten hole is formed, when overhead welding is to oblique overhead position arc manipulation, it is necessary to assure partly punch state, to oblique vertical position welding and downhand position, top arc welding can be used.
Description
Technical field
The invention belongs to bellows manufacturing technology field more particularly to a kind of welding methods of corrugated conduit.
Background technology
Bellows refers to the tubular elastomeric sensing element connected into along folding retractable direction with foldable wrinkle piece.Bellows
Be widely used in instrument and meter, be mainly used for the measuring cell as pressure measuring instruments, convert pressure into displacement or
Power.Ripple tube wall is relatively thin, and sensitivity is higher, and measurement range is tens of pas to tens of megapascal.Its open end is fixed, sealed end
Increase elasticity in free state, and using the helical spring of auxiliary or reed.Along pipe under the action of internal pressure when work
Sub- elongated lengthwise makes movable end generate the displacement with pressure at certain relationship.Movable end drives pointer that can directly indicate
The size of pressure.Bellows, which usually combines with displacement sensor, constitutes output as the pressure sensor of electricity, also uses sometimes
Make isolation element.Since the stretching, extension of bellows requires larger volume to change, its response speed is less than Bourdon tube.
Bellows includes mainly metal bellows, expansion bellow, corrugated tube, diaphragm and diaphragm capsule and metal hose etc..
Metal bellows is mainly used in the effects that compensation pipes thermal deformation, damping, absorption line sedimentation and deformation, is widely used in stone
The industries such as change, instrument, space flight, chemical industry, electric power, cement, metallurgy.The other materials such as plastics bellows is worn in medium conveying, electric power
There is irreplaceable role in the fields such as line, lathe, household electrical appliances.
When bellows-welding, weld joint on inner side argon-filled protection is a cumbersome problem, and when caliber is larger, pipeline is longer
When, such as argon filling directly into pipe, it will largely waste argon gas, increase engineering cost.
Invention content
The present invention provides a kind of welding method of corrugated conduit, with solve waste argon gas mentioned above in the background art,
The problem of increasing cost.
Technical problem solved by the invention is realized using following technical scheme：
A kind of welding method of corrugated conduit, includes the following steps：
The first step, the inspection of pipeline check whether the surface of pipeline has the defects of crackle, shrinkage cavity, folding, pipe；
Second step：Cleaning, cleans pipeline with pipeline cleaning；
Third walks, preheating, and using electric preheating, the heating of uniform stabilization is carried out to bellows；
4th step, groove processing carry out groove processing to bellows；
5th step, polishing, polishes to groove using sander；
6th step, welding, on groove face in striking to gap, makes welding rod make slight lateral swing in two root faces, when root face is molten
When changing iron liquid and welding rod molten drop and connecting together, sending on welding rod, electrode tip all reaches groove bottom edge at this time, and the 2/3 of entire electric arc
Will be in combustion inner pipe, and first molten hole is formed, when overhead welding is to oblique overhead position arc manipulation, it is necessary to assure state is partly punched, until
Oblique vertical position welding and downhand position can use top arc welding；
7th step, it is anti-oxidation, in pipe away from each 100mm in weld bond both sides at, a pair of rubber slab connected with iron wire of setting, plate thickness is
3-5mm is supported inside and outside plate with clamping plate, the metal hose of an a diameter of 3-5mm is filled on one piece of closure plate wherein, is welded
Argon filling in Shi Xiangguan after being soldered, is pulled out rubber slab by metal hose；
8th step after the completion of oxidation, using material package weld seam and weld seam both sides are protected, makes weld seam Slow cooling；
9th step cleans groove, then polished smooth with sander after cooling.
The angle of the groove is 20 ° -30 °.
Beneficial effects of the present invention are：
The technical program is so that fusion when welding is preferably protected, and save argon gas with rubber closure plate argon-filled protection method
Dosage can be used adhesive tape to seal one section of nozzle in advance, and the fusion length for only reserving the welding of welder's one-time continuous is torn after being soldered this section
The adhesive tape of equal length is opened, then welding again, and so on, until welding is completed, whole implementation effect is ideal, and is conducive to
It promotes the use of on a large scale.
Specific implementation mode
A kind of welding method of corrugated conduit, includes the following steps：
The first step, the inspection of pipeline check whether the surface of pipeline has the defects of crackle, shrinkage cavity, folding, pipe；
Second step：Cleaning, cleans pipeline with pipeline cleaning；
Third walks, preheating, and using electric preheating, the heating of uniform stabilization is carried out to bellows；
4th step, groove processing carry out groove processing to bellows；
5th step, polishing, polishes to groove using sander；
6th step, welding, on groove face in striking to gap, makes welding rod make slight lateral swing in two root faces, when root face is molten
When changing iron liquid and welding rod molten drop and connecting together, sending on welding rod, electrode tip all reaches groove bottom edge at this time, and the 2/3 of entire electric arc
Will be in combustion inner pipe, and first molten hole is formed, when overhead welding is to oblique overhead position arc manipulation, it is necessary to assure state is partly punched, until
Oblique vertical position welding and downhand position can use top arc welding；
7th step, it is anti-oxidation, in pipe away from each 100mm in weld bond both sides at, a pair of rubber slab connected with iron wire of setting, plate thickness is
3-5mm is supported inside and outside plate with clamping plate, the metal hose of an a diameter of 3-5mm is filled on one piece of closure plate wherein, is welded
Argon filling in Shi Xiangguan after being soldered, is pulled out rubber slab by metal hose；
8th step after the completion of oxidation, using material package weld seam and weld seam both sides are protected, makes weld seam Slow cooling；
9th step cleans groove, then polished smooth with sander after cooling.
The angle of the groove is 20 ° -30 °.
Embodiment one：
A kind of welding method of corrugated conduit, includes the following steps：
The first step, the inspection of pipeline check whether the surface of pipeline has the defects of crackle, shrinkage cavity, folding, pipe；
Second step：Cleaning, cleans pipeline with pipeline cleaning；
Third walks, preheating, and using electric preheating, the heating of uniform stabilization is carried out to bellows；
4th step, groove processing carry out groove processing to bellows；
5th step, polishing, polishes to groove using sander；
6th step, welding, on groove face in striking to gap, makes welding rod make slight lateral swing in two root faces, when root face is molten
When changing iron liquid and welding rod molten drop and connecting together, sending on welding rod, electrode tip all reaches groove bottom edge at this time, and the 2/3 of entire electric arc
Will be in combustion inner pipe, and first molten hole is formed, when overhead welding is to oblique overhead position arc manipulation, it is necessary to assure state is partly punched, until
Oblique vertical position welding and downhand position can use top arc welding；
7th step, it is anti-oxidation, in pipe away from each 100mm in weld bond both sides at, a pair of rubber slab connected with iron wire of setting, plate thickness is
3mm is supported with clamping plate inside and outside plate, fills the metal hose of an a diameter of 3mm on one piece of closure plate wherein, when welding to
Argon filling in pipe, after being soldered, is pulled out rubber slab by metal hose；
8th step after the completion of oxidation, using material package weld seam and weld seam both sides are protected, makes weld seam Slow cooling；
9th step cleans groove, then polished smooth with sander after cooling.
The angle of the groove is 20 °.
Embodiment two：
A kind of welding method of corrugated conduit, includes the following steps：
The first step, the inspection of pipeline check whether the surface of pipeline has the defects of crackle, shrinkage cavity, folding, pipe；
Second step：Cleaning, cleans pipeline with pipeline cleaning；
Third walks, preheating, and using electric preheating, the heating of uniform stabilization is carried out to bellows；
4th step, groove processing carry out groove processing to bellows；
5th step, polishing, polishes to groove using sander；
6th step, welding, on groove face in striking to gap, makes welding rod make slight lateral swing in two root faces, when root face is molten
When changing iron liquid and welding rod molten drop and connecting together, sending on welding rod, electrode tip all reaches groove bottom edge at this time, and the 2/3 of entire electric arc
Will be in combustion inner pipe, and first molten hole is formed, when overhead welding is to oblique overhead position arc manipulation, it is necessary to assure state is partly punched, until
Oblique vertical position welding and downhand position can use top arc welding；
7th step, it is anti-oxidation, in pipe away from each 100mm in weld bond both sides at, a pair of rubber slab connected with iron wire of setting, plate thickness is
4mm is supported with clamping plate inside and outside plate, fills the metal hose of an a diameter of 4mm on one piece of closure plate wherein, when welding to
Argon filling in pipe, after being soldered, is pulled out rubber slab by metal hose；
8th step after the completion of oxidation, using material package weld seam and weld seam both sides are protected, makes weld seam Slow cooling；
9th step cleans groove, then polished smooth with sander after cooling.
The angle of the groove is 25 °.
Embodiment three：
A kind of welding method of corrugated conduit, includes the following steps：
The first step, the inspection of pipeline check whether the surface of pipeline has the defects of crackle, shrinkage cavity, folding, pipe；
Second step：Cleaning, cleans pipeline with pipeline cleaning；
Third walks, preheating, and using electric preheating, the heating of uniform stabilization is carried out to bellows；
4th step, groove processing carry out groove processing to bellows；
5th step, polishing, polishes to groove using sander；
6th step, welding, on groove face in striking to gap, makes welding rod make slight lateral swing in two root faces, when root face is molten
When changing iron liquid and welding rod molten drop and connecting together, sending on welding rod, electrode tip all reaches groove bottom edge at this time, and the 2/3 of entire electric arc
Will be in combustion inner pipe, and first molten hole is formed, when overhead welding is to oblique overhead position arc manipulation, it is necessary to assure state is partly punched, until
Oblique vertical position welding and downhand position can use top arc welding；
7th step, it is anti-oxidation, in pipe away from each 100mm in weld bond both sides at, a pair of rubber slab connected with iron wire of setting, plate thickness is
5mm is supported with clamping plate inside and outside plate, fills the metal hose of an a diameter of 5mm on one piece of closure plate wherein, when welding to
Argon filling in pipe, after being soldered, is pulled out rubber slab by metal hose；
8th step after the completion of oxidation, using material package weld seam and weld seam both sides are protected, makes weld seam Slow cooling；
9th step cleans groove, then polished smooth with sander after cooling.
The angle of the groove is 30 °.
The embodiments of the present invention have been described in detail above, but content is only the preferred embodiment of the present invention,
Should not be construed as limiting the present invention practical range, any changes and modifications in accordance with the scope of the present application,
It should all still fall within the scope of the patent of the present invention.
Claims (2)
1. a kind of welding method of corrugated conduit, it is characterised in that：Include the following steps：
The first step, the inspection of pipeline check whether the surface of pipeline has the defects of crackle, shrinkage cavity, folding, pipe；
Second step：Cleaning, cleans pipeline with pipeline cleaning；
Third walks, preheating, and using electric preheating, the heating of uniform stabilization is carried out to bellows；
4th step, groove processing carry out groove processing to bellows；
5th step, polishing, polishes to groove using sander；
6th step, welding, on groove face in striking to gap, makes welding rod make slight lateral swing in two root faces, when root face is molten
When changing iron liquid and welding rod molten drop and connecting together, sending on welding rod, electrode tip all reaches groove bottom edge at this time, and the 2/3 of entire electric arc
Will be in combustion inner pipe, and first molten hole is formed, when overhead welding is to oblique overhead position arc manipulation, it is necessary to assure state is partly punched, until
Oblique vertical position welding and downhand position can use top arc welding；
7th step, it is anti-oxidation, in pipe away from each 100mm in weld bond both sides at, a pair of rubber slab connected with iron wire of setting, plate thickness is
3-5mm is supported inside and outside plate with clamping plate, the metal hose of an a diameter of 3-5mm is filled on one piece of closure plate wherein, is welded
Argon filling in Shi Xiangguan after being soldered, is pulled out rubber slab by metal hose；
8th step after the completion of oxidation, using material package weld seam and weld seam both sides are protected, makes weld seam Slow cooling；
9th step cleans groove, then polished smooth with sander after cooling.
2. a kind of welding method of corrugated conduit according to claim 1, it is characterised in that：The angle of the groove is
20°-30°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370844.3A CN108568582A (en) | 2018-04-24 | 2018-04-24 | A kind of welding method of corrugated conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370844.3A CN108568582A (en) | 2018-04-24 | 2018-04-24 | A kind of welding method of corrugated conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108568582A true CN108568582A (en) | 2018-09-25 |
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ID=63574291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810370844.3A Pending CN108568582A (en) | 2018-04-24 | 2018-04-24 | A kind of welding method of corrugated conduit |
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| Country | Link |
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| CN (1) | CN108568582A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489731A (en) * | 2018-12-26 | 2019-03-19 | 江苏丰禾机械制造股份有限公司 | A kind of quality detecting method after bellows assembling |
| CN117943760A (en) * | 2024-03-27 | 2024-04-30 | 合肥大学 | Automobile metal plate welding device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504090A (en) * | 2009-03-06 | 2009-08-12 | 浙江超达阀门股份有限公司 | Bellows welding member and welding method |
| CN103212913A (en) * | 2013-04-25 | 2013-07-24 | 河北钢铁股份有限公司唐山分公司 | Fitting up and welding method of major-diameter thin-wall stainless steel bellows |
| CN204366249U (en) * | 2014-12-09 | 2015-06-03 | 中国海洋石油总公司 | For the pipe plugging of argon protection welding |
| CN105965134A (en) * | 2016-06-27 | 2016-09-28 | 成都市翻鑫家科技有限公司 | Pipe welding method |
| CN106001869A (en) * | 2016-06-27 | 2016-10-12 | 成都市翻鑫家科技有限公司 | Pipeline welding method under low-temperature condition |
| EP3078445A1 (en) * | 2015-04-10 | 2016-10-12 | MAGNA STEYR Engineering AG & Co KG | Compensating element |
| CN107234319A (en) * | 2017-07-14 | 2017-10-10 | 玉环县金龙欧浴洁具有限公司 | Thin plate corrugated stainless steel tubing pipe crimping welding procedure |
-
2018
- 2018-04-24 CN CN201810370844.3A patent/CN108568582A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504090A (en) * | 2009-03-06 | 2009-08-12 | 浙江超达阀门股份有限公司 | Bellows welding member and welding method |
| CN103212913A (en) * | 2013-04-25 | 2013-07-24 | 河北钢铁股份有限公司唐山分公司 | Fitting up and welding method of major-diameter thin-wall stainless steel bellows |
| CN204366249U (en) * | 2014-12-09 | 2015-06-03 | 中国海洋石油总公司 | For the pipe plugging of argon protection welding |
| EP3078445A1 (en) * | 2015-04-10 | 2016-10-12 | MAGNA STEYR Engineering AG & Co KG | Compensating element |
| CN105965134A (en) * | 2016-06-27 | 2016-09-28 | 成都市翻鑫家科技有限公司 | Pipe welding method |
| CN106001869A (en) * | 2016-06-27 | 2016-10-12 | 成都市翻鑫家科技有限公司 | Pipeline welding method under low-temperature condition |
| CN107234319A (en) * | 2017-07-14 | 2017-10-10 | 玉环县金龙欧浴洁具有限公司 | Thin plate corrugated stainless steel tubing pipe crimping welding procedure |
Non-Patent Citations (1)
| Title |
|---|
| 樊兆馥编著: "《机械设备安装工程手册》", 31 May 2004, 冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489731A (en) * | 2018-12-26 | 2019-03-19 | 江苏丰禾机械制造股份有限公司 | A kind of quality detecting method after bellows assembling |
| CN117943760A (en) * | 2024-03-27 | 2024-04-30 | 合肥大学 | Automobile metal plate welding device |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180925 |
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| RJ01 | Rejection of invention patent application after publication |