CN2758002Y - Composite welding edge beveling - Google Patents
Composite welding edge beveling Download PDFInfo
- Publication number
- CN2758002Y CN2758002Y CN 200420061305 CN200420061305U CN2758002Y CN 2758002 Y CN2758002 Y CN 2758002Y CN 200420061305 CN200420061305 CN 200420061305 CN 200420061305 U CN200420061305 U CN 200420061305U CN 2758002 Y CN2758002 Y CN 2758002Y
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- CN
- China
- Prior art keywords
- welding
- beveling
- utility
- model
- narrow gap
- 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 - Lifetime
Links
- 238000003466 welding Methods 0.000 title claims abstract description 46
- 239000002131 composite material Substances 0.000 title claims abstract description 7
- 230000009977 dual effect Effects 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000003209 petroleum derivative Substances 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000003345 natural gas Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- IGKWMHUOBKCUQU-USJZOSNVSA-N Aceritannin Natural products O[C@@H]1[C@@H](O)[C@H](COC(=O)c2cc(O)c(O)c(O)c2)OC[C@@H]1OC(=O)c3cc(O)c(O)c(O)c3 IGKWMHUOBKCUQU-USJZOSNVSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model relates to a composite welding edge beveling which is used for full automatic and semi automatic welding of petroleum and natural gas long-distance convey pipelines, and the utility model belongs to the technical field of pipeline welding. The utility model solves the problems of large beveling, large corresponding welding area, more welding sticks and time for welding one welding opening and easy generation of no welding of side walls of welding roots in the prior art. The utility model adopts the welding opening of which the lower part is a double U-shaped beveling, and the upper part is a compound welding beveling with a V-shaped beveling with a narrow gap. The welding beveling with narrow gap can effectively increase welding speed and save welding material and can assure standard welding angles, and the welding beveling with the narrow gap can overcome the disadvantage of no welding of the side walls of the welding roots. Meanwhile, the utility model can effectively reduce welding cost and shorten construction period in large-sized projects owing to the small angles.
Description
Technical field: a kind of composite welding groove, be used for the full-automatic and semi-automatic welding of petroleum gas long distance pipeline, belong to the pipeline welding technical field.
Prior art: prior art is aspect the welding of long distance pipeline, the automatic soldering method that particularly adopts in West-East National Gas Transmission Project mainly is brave machine filling outside the internal welding machine root bead+automatically, two kinds of methods of capping and semiautomatic welding root bead+automatically outer brave machine filling capping, the groove of pipeline mainly contains V-butt and U-shaped groove, the angle of face is 22 °-23 °, adopts the beveling machine finished edge; The shortcoming of prior art is: because that the groove of prior art is opened is bigger, when welding in order to fill up breach, automatic welder(welding machine) will strengthen the amplitude of swing, increase the zone and the level that cover, so just might in welding process, produce the layer with layer between be connected bad pad, simultaneously because opening is big, its area that need weld is also with regard to corresponding increase, like this, welding a weld bond just needs more welding wire and more time, if will increase welding cost and increase the duration in heavy construction, simultaneously, because solder side increases, can not guarantee the good fusion quality of weld metal and groove sidewall.
Summary of the invention: the purpose of this utility model is the defective at prior art, and designing a kind of weld bond bottom is double-U groove, and top is the composite welding groove of the V-butt in narrow gap.
Bevel for welding of the present utility model comprises top weld bond and bottom weld bond, top is made of the V-butt in a narrow gap, and the opening degree of V-butt is 8 °, and the bottom weld bond is made of double-U groove, the radius of curvature of the compound groove of bottom dual U-shaped is respectively: upward be R3.2mm, be R2.4mm down; The utility model has the advantages that: the sidewall that narrow groove can effectively overcome root of weld is the defective of fusion welding not, can guarantee 33 ° of welding angles of API standard code, simultaneously since its angle I to accelerate speed of welding and to save welding material.
Description of drawings:
Fig. 1 is the utility model weld bond generalized section.
The specific embodiment: provide embodiment of the present utility model below in conjunction with accompanying drawing: bevel for welding of the present utility model is the compound groove of the dual U-shaped in narrow gap, comprise top weld bond and bottom weld bond, top is made of the V-butt 2 in a narrow gap, and the opening degree of V-butt 2 is 5 °-11 °; The bottom weld bond is made of the double-U groove structure, and the radius of curvature of the compound groove 1 of bottom dual U-shaped is respectively: upward be R3.2mm, be R2.4mm down; Opening with top V-butt 2 is an example for 8 °: adopt beveling machine to open one 8 ° groove on steel pipe 3, the compound groove 1 of dual U-shaped is opened in the bottom, is R3.2mm on the radius of curvature of the compound groove 1 of dual U-shaped, is R2.4mm down; Select REDLLICA RMS18 to be the bottoming welding wire, BOHLER SG3-P fills out to cover welding wire the groove of holding successfully is welded, because the pendulum of automatic welder(welding machine) is wide restricted, and the opening degree of the compound groove of narrow gap U of the present utility model is 8 °, therefore do not need too big pendulum width, the welding of finishing a joint that can save fast in welding process can guarantee weld metal and the good fusion quality of groove sidewall simultaneously.
Claims (1)
1. a composite welding groove comprises top weld bond and bottom weld bond, it is characterized in that:
A. described top weld bond is the V-butt structure, and opening degree is 5 °-11 °;
B. described bottom weld bond is a dual U-shaped composite slope mouth structure, and its radius of curvature is respectively: upward be R3.2mm, be R2.4mm down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061305 CN2758002Y (en) | 2004-09-20 | 2004-09-20 | Composite welding edge beveling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061305 CN2758002Y (en) | 2004-09-20 | 2004-09-20 | Composite welding edge beveling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2758002Y true CN2758002Y (en) | 2006-02-15 |
Family
ID=36078144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420061305 Expired - Lifetime CN2758002Y (en) | 2004-09-20 | 2004-09-20 | Composite welding edge beveling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2758002Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450692C (en) * | 2006-08-25 | 2009-01-14 | 中国核工业第二三建设公司 | Large posted sides pipeline narrow gap tungsten electrode noble gas protecting all-position automatic soldering method |
| CN103273209A (en) * | 2013-06-05 | 2013-09-04 | 天顺风能(苏州)股份有限公司 | Welding process of outside wind tower U-shaped grooves |
| CN104759797A (en) * | 2015-04-14 | 2015-07-08 | 攀钢集团工程技术有限公司 | Combined groove for thick workpiece crack repairing and combined groove repairing technology |
| CN105465493A (en) * | 2016-01-05 | 2016-04-06 | 广东粤新海洋工程装备股份有限公司 | Single groove butted ship pipeline and welding method thereof |
| CN105855673A (en) * | 2016-05-30 | 2016-08-17 | 吉林昊宇电气股份有限公司 | Thick-wall steel pipe mixed type groove structure and matched welding tip thereof |
| CN108714748A (en) * | 2018-06-04 | 2018-10-30 | 中国电建集团核电工程有限公司 | Nuclear power plant main pipeline forging all positon narrow gap automatic welding groove and welding procedure |
| CN108788508A (en) * | 2018-07-27 | 2018-11-13 | 海洋石油工程股份有限公司 | The mouth structure of Deep Water Steel catenary riser welding |
| CN110303261A (en) * | 2019-06-26 | 2019-10-08 | 江苏众信绿色管业科技有限公司 | A kind of oil-gas transportation stainless steel pipes all-position welding method |
-
2004
- 2004-09-20 CN CN 200420061305 patent/CN2758002Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450692C (en) * | 2006-08-25 | 2009-01-14 | 中国核工业第二三建设公司 | Large posted sides pipeline narrow gap tungsten electrode noble gas protecting all-position automatic soldering method |
| CN103273209A (en) * | 2013-06-05 | 2013-09-04 | 天顺风能(苏州)股份有限公司 | Welding process of outside wind tower U-shaped grooves |
| CN104759797A (en) * | 2015-04-14 | 2015-07-08 | 攀钢集团工程技术有限公司 | Combined groove for thick workpiece crack repairing and combined groove repairing technology |
| CN105465493A (en) * | 2016-01-05 | 2016-04-06 | 广东粤新海洋工程装备股份有限公司 | Single groove butted ship pipeline and welding method thereof |
| CN105855673A (en) * | 2016-05-30 | 2016-08-17 | 吉林昊宇电气股份有限公司 | Thick-wall steel pipe mixed type groove structure and matched welding tip thereof |
| CN108714748A (en) * | 2018-06-04 | 2018-10-30 | 中国电建集团核电工程有限公司 | Nuclear power plant main pipeline forging all positon narrow gap automatic welding groove and welding procedure |
| CN108788508A (en) * | 2018-07-27 | 2018-11-13 | 海洋石油工程股份有限公司 | The mouth structure of Deep Water Steel catenary riser welding |
| CN110303261A (en) * | 2019-06-26 | 2019-10-08 | 江苏众信绿色管业科技有限公司 | A kind of oil-gas transportation stainless steel pipes all-position welding method |
| CN110303261B (en) * | 2019-06-26 | 2021-09-17 | 江苏众信绿色管业科技有限公司 | All-position welding method for stainless steel pipeline for oil and gas transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM GROUP CHUANQING DRILLING ENGINEER Free format text: FORMER OWNER: SICHUAN PETROLEUM ADMINISTRATION Effective date: 20081017 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081017 Address after: Overlooking the green road Chengdu city Sichuan province 1 No. 3 company Chuanqing drilling technology information office, zip code: 610051 Patentee after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Address before: Patent Office of No.1 Petroleum Bureau, Sichuan, Chengdu Province: 610051 Patentee before: Sichuan Petroleum Administration |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140920 Granted publication date: 20060215 |