CN106031960A - Inner surface gas protection device used when welding circular tube - Google Patents
Inner surface gas protection device used when welding circular tube Download PDFInfo
- Publication number
- CN106031960A CN106031960A CN201510112318.3A CN201510112318A CN106031960A CN 106031960 A CN106031960 A CN 106031960A CN 201510112318 A CN201510112318 A CN 201510112318A CN 106031960 A CN106031960 A CN 106031960A
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- rubber ring
- interior
- circular tube
- pipe
- drilled
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Abstract
The invention belongs to the field of metal welding, and relates to an inner surface gas protection device used when welding a circular tube. The device is characterized by comprising a ventilation circular tube, an outer rubber ring, an inner rubber ring, an outer asbestos cover, and an inner asbestos cover. The ventilation circular tube is a metal circular tube with one end sealed. The outer rubber ring and the inner rubber ring are in a hollow round plate like structure. The center of the outer rubber ring is provided with a round hole. The center of the inner rubber ring is provided with a round hole. The outer surface of the outer rubber ring is adhered with the outer asbestos cover which is in the same shape and is larger in dimensions. The outer surface of the inner rubber ring is adhered with the inner asbestos cover which is in the same shape and is larger in dimensions. The ventilation circular tube passes through the round hole of the inner rubber ring and the round hole of the outer rubber ring, and fixes the inner rubber ring and the outer rubber ring. A venthole is drilled on the inner rubber ring position of the ventilation circular tube, and a venthole is drilled on the outer rubber ring position of the ventilation circular tube. A venthole is drilled on the middle position of the inner rubber ring and the outer rubber ring position of the ventilation circular tube.
Description
Technical field
The invention belongs to metal welding techniques, inner surface gas when relating to the welding of a kind of pipe is protected
Protection unit.
Background technology
In metal solder field, the cleaning of welding quality and pipe interior in order to ensure pipeline
Degree, generally uses bottom argon arc welding.When using argon arc welding welding, it is sometimes desirable to take weld seam to protect
Protecting measure, otherwise the weld metal at the back side is easy in welding process oxidation, and alloying element burns
Damage, and be easily generated weld defect, cause the mechanical property of weld metal and corrosion resistance to decline.Mesh
Before there is no suitable pipe inner surface gas shield device.
Summary of the invention
It is an object of the invention to: propose the inner surface gas shield device during welding of a kind of pipe,
During to realize welding pipe, inner surface carries out the purpose of gas shield.
The technical scheme is that inner surface gas shield device when a kind of pipe welds,
It is characterized in that, it is by pipe of ventilating, outer rubber circle, interior rubber ring, outer asbestos cover and interior stone
Cotton cover composition；Ventilation pipe is the metal circular tube that one end is airtight, and outer rubber circle and interior rubber ring are
The circular plate-like shape structure of hollow, the center of rubber ring is shaped with manhole outside, at interior rubber ring
Center be shaped with manhole, the outer surface of rubber ring is with shape is identical, size is slightly larger outside
Outer asbestos cover, at the outer surface of interior rubber ring with shape is identical, size is slightly larger interior asbestos
Cover, ventilation pipe passes the manhole of interior rubber ring and the manhole of outer rubber circle by interior rubber
Cushion rubber and outer rubber circle fix.It is drilled with passage in the interior rubber ring position of ventilation pipe,
The outer rubber circle position of ventilation pipe is drilled with passage, interior rubber ring and the outer rubber of ventilation pipe
The centre position of cushion rubber is drilled with passage.
The invention have the advantage that present configuration is simple, easy to process, processing ease, it is possible to
An opposing seal preferable gas shield space is formed at welding seams of round pipe inner surface, can be very well
Prevent back of weld from aoxidizing, make the mechanical property of weld seam and decay resistance effectively be protected
Card.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below the present invention is described in further details.See Fig. 1, during the welding of a kind of pipe
Inner surface gas shield device.It is characterized in that, it by pipe 1 of ventilating, outer rubber circle 2,
Interior rubber ring 7, outer asbestos cover 3 and interior asbestos cover 8 form；Ventilation pipe 1 is that one end is airtight
Metal circular tube, outer rubber circle 2 and interior rubber ring 7 are the circular plate-like shape structures of hollow, outside
The center of rubber ring 2 is shaped with manhole 2b, is shaped with circular logical at the center of interior rubber ring 7
Hole 7a, the outer surface of rubber ring 2 is with the outer asbestos cover 3 that shape is identical, size is slightly larger outside,
Outer surface at interior rubber ring 7 has the interior asbestos cover 8 that shape is identical, size is slightly larger, ventilation
Pipe 1 will through the manhole 7a of interior the rubber ring 7 and manhole 2a of outer rubber circle 2
Interior rubber ring 7 and outer rubber circle 2 fix.Bore in interior rubber ring 7 position of ventilation pipe 1
There is passage 1c, be drilled with passage 1f in outer rubber circle 2 position of ventilation pipe 1, logical
The interior rubber ring 7 of gas pipe 1 is drilled with passage 1d with the centre position of outer rubber circle 2.
The present invention in use outer rubber circle 2 is inserted into pipe 6 to be welded endoporus 6a and
In, interior rubber ring 7 is inserted in the endoporus 5a of pipe 5 to be welded, then by ventilation
Carrying noble gas in the endoporus 1a of pipe 1, noble gas makes interior rubber by passage 1c
In circle 7 expansion tensioner, asbestos cover 8 is fitted with the endoporus 5a of pipe 5, and noble gas passes through
Passage 1f makes outer rubber circle 2 expand and the endoporus 6a of the outer asbestos cover 3 of tensioner and pipe 6 pastes
Closing, noble gas is transported to the centre of interior rubber ring 7 and outer rubber circle 2 by passage 1d
In confined space, time weld seam 4 inner surface be full of protective gas.
The present invention can be effectively with to be welded by the tensioner effect of interior rubber ring and outer rubber circle
The inner surface of pipe ensures laminating reliably, forms one between interior rubber ring and outer rubber circle
Opposing seal preferable gas shield space, can prevent back of weld from aoxidizing well, be round
The efficient apparatus of gas shield is provided during sealing of tube.
Claims (1)
1. an inner surface gas shield device during pipe welding.It is characterized in that, it is by ventilating
Pipe (1), outer rubber circle (2), interior rubber ring (7), outer asbestos cover (3) and interior asbestos
Cover (8) composition；Ventilation pipe (1) is the metal circular tube that one end is airtight, outer rubber circle (2)
It is the circular plate-like shape structure of hollow with interior rubber ring (7), the center system of rubber ring (2) outside
There is manhole (2b), be shaped with manhole (7a) at the center of interior rubber ring (7),
The outer surface of outer rubber circle (2) has the outer asbestos cover (3) that shape is identical, at interior rubber ring
(7) outer surface has the interior asbestos cover (8) that shape is identical, and ventilation pipe (1) is through interior
The manhole (7a) of rubber ring (7) and the manhole (2a) of outer rubber circle (2) will
Interior rubber ring (7) and outer rubber circle (2) fix.Interior rubber in ventilation pipe (1)
Circle (7) position is drilled with passage (1c), in outer rubber circle (2) position of ventilation pipe (1)
Put and be drilled with passage (1f), at interior rubber ring (7) and the outer rubber circle of ventilation pipe (1)
(2) centre position is drilled with passage (1d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510112318.3A CN106031960A (en) | 2015-03-13 | 2015-03-13 | Inner surface gas protection device used when welding circular tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510112318.3A CN106031960A (en) | 2015-03-13 | 2015-03-13 | Inner surface gas protection device used when welding circular tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106031960A true CN106031960A (en) | 2016-10-19 |
Family
ID=57150134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510112318.3A Pending CN106031960A (en) | 2015-03-13 | 2015-03-13 | Inner surface gas protection device used when welding circular tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106031960A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590662A (en) * | 2019-01-07 | 2019-04-09 | 上海航天精密机械研究所 | Automatic soldering device and welding method is adjusted in titanium alloy barrel body circumferential weld |
| CN109967909A (en) * | 2019-05-06 | 2019-07-05 | 无锡万里实业集团有限公司 | High-speed EMUs water tank main body weld seam backside gas protection technique |
Citations (12)
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|---|---|---|---|---|
| DE2454774A1 (en) * | 1974-11-19 | 1976-05-26 | Waldemar Panzer | Inert gas butt welding of pipes - using inflatable balloons to form gas chamber inside pipes |
| JPH0871790A (en) * | 1994-09-05 | 1996-03-19 | Takasago Thermal Eng Co Ltd | Tube welding method and welding jig |
| JPH10258362A (en) * | 1996-10-21 | 1998-09-29 | M Ii Gijutsu Kenkyusho:Kk | Device spatially isolating necessary section within tube |
| CN2796928Y (en) * | 2005-06-27 | 2006-07-19 | 四川石油管理局 | Argon gas filling protection device for biphase stainless steel pipe line welding |
| CN201151030Y (en) * | 2008-01-30 | 2008-11-19 | 四川石油天然气建设工程有限责任公司 | Inner protection device for pipeline welding |
| CN101323067A (en) * | 2008-07-22 | 2008-12-17 | 广州广船国际股份有限公司 | Pipe fitting butt welding protecting method and apparatus |
| CN201394704Y (en) * | 2009-05-09 | 2010-02-03 | 中国石油兰州石油化工公司 | Argon-filling welding protective cover |
| CN201815806U (en) * | 2010-04-15 | 2011-05-04 | 江苏伟业安装集团有限公司 | Local argon gas filling device in large- and medium-sized pipelines |
| CN201841368U (en) * | 2010-10-19 | 2011-05-25 | 广东火电工程总公司 | Air inflation protecting device for welding of pipeline |
| CN102133680A (en) * | 2011-01-29 | 2011-07-27 | 中国石化集团第十建设公司 | Gas replacement and protection device for welding nonferrous metal and nonferrous metal alloy composite pipelines |
| CN103008899A (en) * | 2012-12-12 | 2013-04-03 | 南京麦驰钛业有限公司 | Non-ferrous metal pipeline circular seam welding method and protective gas sealing device |
| CN103386562A (en) * | 2012-05-10 | 2013-11-13 | 五冶集团上海有限公司 | Pipeline protection and protective gas saving dual-purpose device for pipeline hole opening and welding |
-
2015
- 2015-03-13 CN CN201510112318.3A patent/CN106031960A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2454774A1 (en) * | 1974-11-19 | 1976-05-26 | Waldemar Panzer | Inert gas butt welding of pipes - using inflatable balloons to form gas chamber inside pipes |
| JPH0871790A (en) * | 1994-09-05 | 1996-03-19 | Takasago Thermal Eng Co Ltd | Tube welding method and welding jig |
| JPH10258362A (en) * | 1996-10-21 | 1998-09-29 | M Ii Gijutsu Kenkyusho:Kk | Device spatially isolating necessary section within tube |
| CN2796928Y (en) * | 2005-06-27 | 2006-07-19 | 四川石油管理局 | Argon gas filling protection device for biphase stainless steel pipe line welding |
| CN201151030Y (en) * | 2008-01-30 | 2008-11-19 | 四川石油天然气建设工程有限责任公司 | Inner protection device for pipeline welding |
| CN101323067A (en) * | 2008-07-22 | 2008-12-17 | 广州广船国际股份有限公司 | Pipe fitting butt welding protecting method and apparatus |
| CN201394704Y (en) * | 2009-05-09 | 2010-02-03 | 中国石油兰州石油化工公司 | Argon-filling welding protective cover |
| CN201815806U (en) * | 2010-04-15 | 2011-05-04 | 江苏伟业安装集团有限公司 | Local argon gas filling device in large- and medium-sized pipelines |
| CN201841368U (en) * | 2010-10-19 | 2011-05-25 | 广东火电工程总公司 | Air inflation protecting device for welding of pipeline |
| CN102133680A (en) * | 2011-01-29 | 2011-07-27 | 中国石化集团第十建设公司 | Gas replacement and protection device for welding nonferrous metal and nonferrous metal alloy composite pipelines |
| CN103386562A (en) * | 2012-05-10 | 2013-11-13 | 五冶集团上海有限公司 | Pipeline protection and protective gas saving dual-purpose device for pipeline hole opening and welding |
| CN103008899A (en) * | 2012-12-12 | 2013-04-03 | 南京麦驰钛业有限公司 | Non-ferrous metal pipeline circular seam welding method and protective gas sealing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590662A (en) * | 2019-01-07 | 2019-04-09 | 上海航天精密机械研究所 | Automatic soldering device and welding method is adjusted in titanium alloy barrel body circumferential weld |
| CN109590662B (en) * | 2019-01-07 | 2020-11-24 | 上海航天精密机械研究所 | Automatic welding device and welding method capable of adjusting circumferential seam of titanium alloy cylinder |
| CN109967909A (en) * | 2019-05-06 | 2019-07-05 | 无锡万里实业集团有限公司 | High-speed EMUs water tank main body weld seam backside gas protection technique |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161019 |