CN101758335B - Improved heterogenous steel pipe mechanical welding butt joint divided edge - Google Patents
Improved heterogenous steel pipe mechanical welding butt joint divided edge Download PDFInfo
- Publication number
- CN101758335B CN101758335B CN2009101974664A CN200910197466A CN101758335B CN 101758335 B CN101758335 B CN 101758335B CN 2009101974664 A CN2009101974664 A CN 2009101974664A CN 200910197466 A CN200910197466 A CN 200910197466A CN 101758335 B CN101758335 B CN 101758335B
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- divided edge
- length
- thickness
- butt joint
- 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.)
- Active
Links
Images
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides an improved heterogenous steel pipe mechanical welding butt joint divided edge. A divided edge with the angle alpha is respectively formed at the stainless steel pipe side and a high-alloy heat-resistant steel pipe. The invention is characterized in that a lug boss with the length of a and the thickness of b is arranged at the stainless steel pipe side, and a lug boss with the length of c and the thickness of b is arranged at the high-alloy heat-resistant steel pipe side, wherein c is larger than or equal to 0, and a is larger than c. The invention has the advantages that the nickel content at the root of a welding seam can reach more than 40 percent through being matched with and adopting a certain welding process parameter, the performance in all aspects such as welding seam mechanical performance and the like is the same as that of the ordinary divided edge butt joint welding seam, the processing of the divided edge is simple and convenient, and the divided edge can be formed by adopting a lathe for mechanical processing or manufacturing corresponding cutter tools for forming chamfer angles in one step.
Description
Technical field
The present invention relates to a kind of modified heterogenous steel pipe mechanical welding banjo fixing butt jointing groove, be used for the heat-resistant high alloy steel pipe and dock welding with the mechanical welding of stainless steel tube.
Background technology
The heat-resistant high alloy steel pipe docks the slope type that groove generally adopts band certain angle and symmetry with stainless steel tube.The root nickel content of the butt weld of this slope type generally is lower than 40%; Dissimilar steel banjo fixing butt jointing root of weld nickel content is lower than the amount of being corroded at 40% this position can cause boiler operatiopn the time greater than other positions; Make this place's pipe wall thickness attenuate amount greater than other positions, and bring the possibility that causes booster.
Summary of the invention
The purpose of this invention is to provide a kind of can so that root nickel content greater than 40% banjo fixing butt jointing groove.
In order to achieve the above object, technical scheme of the present invention has provided a kind of modified heterogenous steel pipe banjo fixing butt jointing groove, and the groove of an angle [alpha] is arranged respectively at stainless steel tube side and heat-resistant high alloy steel pipe; It is characterized in that; Having length in the stainless steel tube side is a, and thickness is the convex of b, and having length in heat-resistant high alloy steel pipe side is c; Thickness is the convex of b, wherein 0≤c＜a.
Further, said length a is 3mm～5mm, and thickness b is 1mm～2mm, and length c is 0～2mm.Said angle [alpha] is 5 °～10 °.
The present invention has adopted asymmetric banjo fixing butt jointing groove, and stainless steel tube and heat-resistant high alloy steel pipe bevel angle are α, and this angle should be as far as possible little, to increase the molten amount of applying of filling metal in the welding process.Stainless steel tube one side and alloy pipe one side all have convex.The convex length of stainless steel tube one side because certain Ni content is arranged in the stainless steel, and does not contain the Ni element greater than alloy pipe one side in the alloy heat resisting steel.Therefore at this banjo fixing butt jointing root of weld; The amount of melting stainless steel mother metal is greater than the amount of melted alloy steel mother metal; The existence of convex has simultaneously increased the molten amount of applying of filling metal; Can make root Ni content be improved, be used certain welding procedure more simultaneously, can make root Ni content >=40%.
Advantage of the present invention is: cooperate and adopt certain welding condition that root of weld nickel content is reached more than 40%; Various aspects of performance such as weld seam mechanical performance all are as good as with general groove butt weld; Groove processing is easy, adopts lathe to carry out machined or makes corresponding cutter and carry out the once-forming chamfering and can be shaped.
Description of drawings
Fig. 1 is the structural representation of a kind of modified heterogenous steel pipe mechanical welding banjo fixing butt jointing groove provided by the invention.
The specific embodiment
Specify the present invention below in conjunction with embodiment.
Embodiment 1
As shown in Figure 1; Be the structural representation of a kind of modified heterogenous steel pipe mechanical welding banjo fixing butt jointing groove provided by the invention, at stainless steel tube 1 side and heat-resistant high alloy steel pipe 2 groove of an angle [alpha] arranged respectively, having length in stainless steel tube 1 side is a; Thickness is the convex of b; Having length in heat-resistant high alloy steel pipe 2 sides is c, and thickness is the convex of b, wherein 0≤c＜a.Wherein, length a is 3.5mm, and thickness b is 1.5mm, and length c is 1.5mm, and angle [alpha] is 7 °.
When embodiment of the present invention, at first adopt cutter or this asymmetric groove of machined machined into of corresponding customization.Employing machinery welding subsequently, welding requirements is satisfied on affirmation mother metal surface before the weldering, and counterpart does not have the gap.At last, adopt certain welding condition to weld.
The structure of present embodiment is identical with embodiment 1, and difference is that length a is 5mm, and thickness b is 1.4mm, and length c is 0, and angle [alpha] is 10 °.
Embodiment 3
The structure of present embodiment is identical with embodiment 1, and difference is that length a is 3mm, and thickness b is 1mm, and length c is 2, and angle [alpha] is 5 °.
Embodiment 4
The structure of present embodiment is identical with embodiment 1, and difference is that length a is 5mm, and thickness b is 2mm, and length c is 2, and angle [alpha] is 10 °.
Claims (3)
1. modified heterogenous steel pipe mechanical welding banjo fixing butt jointing groove; At stainless steel tube (1) side and heat-resistant high alloy steel pipe (2) groove of an angle [alpha] is arranged respectively, it is characterized in that having length in stainless steel tube (1) side is a; Thickness is the convex of b; Having length in heat-resistant high alloy steel pipe (2) side is c, and thickness is the convex of b, wherein 0≤c＜a.
2. a kind of modified heterogenous steel pipe mechanical welding banjo fixing butt jointing groove as claimed in claim 1 is characterized in that said length a is 3mm～5mm, and thickness b is 1mm～2mm, and length c is 0～2mm.
3. a kind of modified heterogenous steel pipe mechanical welding banjo fixing butt jointing groove as claimed in claim 1 is characterized in that said angle [alpha] is 5 °～10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101974664A CN101758335B (en) | 2009-10-21 | 2009-10-21 | Improved heterogenous steel pipe mechanical welding butt joint divided edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101974664A CN101758335B (en) | 2009-10-21 | 2009-10-21 | Improved heterogenous steel pipe mechanical welding butt joint divided edge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101758335A CN101758335A (en) | 2010-06-30 |
| CN101758335B true CN101758335B (en) | 2012-02-01 |
Family
ID=42489803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101974664A Active CN101758335B (en) | 2009-10-21 | 2009-10-21 | Improved heterogenous steel pipe mechanical welding butt joint divided edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101758335B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905385A (en) * | 2010-08-04 | 2010-12-08 | 江苏申港锅炉有限公司 | Butting groove structure of stainless steel tube |
| CN104148819A (en) * | 2014-07-14 | 2014-11-19 | 天津大学 | Welding method and welding joint for butt weld of cast steel pipe and hot rolled steel pipe |
| CN111730183A (en) * | 2020-07-06 | 2020-10-02 | 徐州译天环保科技有限公司 | Butt-joint reinforcing steel bar connecting method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2887513Y (en) * | 2006-01-10 | 2007-04-11 | 四川石油管理局 | Mechanical composite pipeline welding chamfer |
| CN101077547A (en) * | 2006-08-25 | 2007-11-28 | 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 |
| CN101462194A (en) * | 2009-01-15 | 2009-06-24 | 中国船舶重工集团公司第七二五研究所 | Titanium and titanium alloy consumable electrode noble gas protective welding technique |
| CN101543928A (en) * | 2009-05-11 | 2009-09-30 | 辽河石油勘探局 | Compound pipeline welding process |
-
2009
- 2009-10-21 CN CN2009101974664A patent/CN101758335B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2887513Y (en) * | 2006-01-10 | 2007-04-11 | 四川石油管理局 | Mechanical composite pipeline welding chamfer |
| CN101077547A (en) * | 2006-08-25 | 2007-11-28 | 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 |
| CN101462194A (en) * | 2009-01-15 | 2009-06-24 | 中国船舶重工集团公司第七二五研究所 | Titanium and titanium alloy consumable electrode noble gas protective welding technique |
| CN101543928A (en) * | 2009-05-11 | 2009-09-30 | 辽河石油勘探局 | Compound pipeline welding process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101758335A (en) | 2010-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101722351A (en) | Method for controlling quality of linerless single-sided welding double-sided molding backing weld seam | |
| CN204209187U (en) | Bimetallic integral solder cutter | |
| CN101758335B (en) | Improved heterogenous steel pipe mechanical welding butt joint divided edge | |
| CN104874929B (en) | Welding technique of industrial pure-Ti sheets with thickness of 11-30 mm | |
| CN203091760U (en) | Cutter head connecting structure of hard alloy cutter | |
| CN201615295U (en) | Metal pipe welding structure | |
| CN201950378U (en) | Melting ring for butt welding of dissimilar steel heat exchange tube | |
| CN1883864A (en) | 45 DEG all-position back-sealing butt welding method for pipe with small diameter | |
| CN201950377U (en) | Improved heterogenous steel pipe welding butt joint nozzle type | |
| CN104416287A (en) | W-Co hard alloy and carbon steel laser welding method | |
| CN103624490A (en) | Method for machining bimetal composite single-weld-seam bend | |
| CN106735780B (en) | A kind of joint structure and welding method of tube butt welding | |
| CN202140704U (en) | Brazing and connecting structure for thin-wall stainless steel pipes | |
| CN101905385A (en) | Butting groove structure of stainless steel tube | |
| CN102441732A (en) | Diffusion welding method and weldment | |
| CN204997121U (en) | Chamfering cutter | |
| CN202032206U (en) | Double-cutting sleeve type tube connector | |
| CN204913086U (en) | Three expand copper brazing interface to taking over | |
| CN202291762U (en) | Bulb steel welding gasket | |
| CN204771186U (en) | Seabed is with compound steel pipes groove structure | |
| CN206326275U (en) | A kind of heavy caliber thick wall nickel alloy multiple tube divided edge structure | |
| CN220816641U (en) | Main valve seat of four-way valve | |
| CN201783764U (en) | Butt groove structure of stainless steel pipe | |
| CN204913087U (en) | Two bloated copper brazing interfaces are to taking over | |
| CN201259026Y (en) | Steel tube with double-bevel end |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |