CN205967852U - New -type welding groove of large -scale steel pipe - Google Patents
New -type welding groove of large -scale steel pipe Download PDFInfo
- Publication number
- CN205967852U CN205967852U CN201620981267.8U CN201620981267U CN205967852U CN 205967852 U CN205967852 U CN 205967852U CN 201620981267 U CN201620981267 U CN 201620981267U CN 205967852 U CN205967852 U CN 205967852U
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- groove
- welding
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- outer groove
- angle
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Abstract
The utility model discloses a new -type welding groove of large -scale steel pipe relates to large -scale pipe welding technical field, including first outer groove, an outer groove of second and an inner groove, the 2nd inner groove, the one end of first outer groove links up with the exterior facial features of body, the other end is connected with the one end of the outer groove of second, the other end of the outer groove of second is connected with half circle ring's top tube truncated edge, an inner groove's one end links up with the internal surface of body mutually, the other end is connected with the 2nd inner groove's one end, the 2nd inner groove's the other end is connected with half circle ring's low tube truncated edge, contained angle a between first outer groove and body surface is less than the contained angle a' between outer groove of second and body surface, contained angle b between an inner groove and body internal surface is lighter than the contained angle b' between the 2nd inner groove and body internal surface. The intensity of labour and the degree of difficulty reduced when this groove makeed the pipeline be geared to the needs of the job the welding, and welding seam appearance and intensity satisfy the technological requirement moreover.
Description
Technical field
This utility model is related to large-scale steel pipe welding technology field.
Background technology
Steel pipe applicating history is longer, and scope is wide, is a kind of traditional transporting pattern, and spiral shell typically selected by the steel pipe for water delivery
Rotation welded tube or ERW, have the advantages that intensity is high, reliability is high, strong adaptability.Aqueduct work progress is as follows：Generally
During tube product processing, pipe end whole circumference adopts outer surface bevel, when carrying out pipeline construction, first by steel pipe
Right, then carry out butt welding, that is, two steel pipes carry out butt welding by groove, and the weld job of whole circumference is related to downhand welding, stands
Weldering and overhead welding, the weld strength so generating is high, can bear higher discharge pressure, but welding difficulty is big, and welding efficiency is low.
So needing now a kind of new-type groove on the premise of ensureing weld strength, making convenient welding, reducing welding difficult
Degree, improves welding efficiency.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of new-type bevel for welding of large-scale steel pipe, and this groove makes to manage
During road butt welding, labor intensity and difficulty reduce, and seam center and intensity meet technological requirement, simplify construction, and it is difficult to reduce
Degree, improves efficiency.
For solving the above problems, this utility model adopts the technical scheme that a kind of offer large-scale steel pipe new-type welding slope
Mouthful, including the first outer groove arranging along mouth of pipe upper semicircumference tube wall, the second outer groove and along mouth of pipe lower half circumference
First internal groove of inboard wall of tube body setting, the second internal groove, described one end of first outer groove is connected with the outer surface phase of body,
The other end is connected with one end of the second outer groove, and the other end of described second outer groove is connected with the upper pipe root face of semi-circular shape,
One end of described first internal groove is connected with the inner surface phase of body, and the other end is connected with one end of the second internal groove, and described
The other end of two internal grooves is connected with the down tube root face of semi-circular shape, the angle a between described first outer groove and outer surface of tube body
Less than the angle a ' between the second outer groove and outer surface of tube body, the angle b between described first internal groove and inner surface of tube body is less than
Angle b ' between the second internal groove and inner surface of tube body.
Preferably, length L of described first outer groove is more than length L of the second outer groove ', the length of described first internal groove
Degree d is more than length d of the second internal groove '.
Preferably, described angle a is 55 °～60 °, and described angle a ' is 70 °～75 °, and described angle b is 55 °～60 °,
Described angle b ' is 70 °～75 °.
Preferably, described angle a is 58 °, and described angle a ' is 73 °, and described angle b is 58 °, and described angle b ' is 73 °.
Preferably, length L of described first outer groove be 5～30mm, length L of described second outer groove ' be 0～
10mm, length d of described first internal groove is 5～30mm, length d of described second internal groove ' it is 0～10mm.
Preferably, length L of described first outer groove is 20mm, length L of described second outer groove ' for 5mm, described the
Length d of one internal groove is 20mm, length d of described second internal groove ' it is 5mm.
Preferably, the width c of described upper pipe root face is equal to the width c ' of down tube root face, and the width c of described upper pipe root face is
0.8～2.4mm.
This utility model is had the effect that, it is outer groove that this groove half is arranged on upper semicircumference, and half is located at down
Semi-circumference is internal groove, can achieve when welding between two steel pipes outer groove and outer groove, internal groove and internal groove it
Between docking, the welding that can only just can smoothly the groove of both sides be guaranteed both quality and quantity completely by downhand welding when welding, both
Ensure that weld strength make again welding become convenience, laborsaving, and in order to increase the every side of weld strength be also provided with adaptable
Two grooves, considerably increase weld strength.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is sectional view of the present utility model（1）：
Fig. 3 is sectional view of the present utility model（2）.
Wherein, the 1, first outer groove, the 2, second outer groove, the 3, first internal groove, the 4, second internal groove, 5, upper pipe root face,
6th, down tube root face.
Specific embodiment
With reference to the accompanying drawings and detailed description this utility model is described in further detail：As shown in Figure 1, Figure 2 and
The new-type bevel for welding of a kind of large-scale steel pipe shown in Fig. 3, including the first outer slope arranging along mouth of pipe upper semicircumference tube wall
Mouthful the 1, second outer groove 2 and the first internal groove 3 arranging along mouth of pipe lower half circumference inboard wall of tube body, the second internal groove 4, described the
One end of one outer groove 1 is connected with the outer surface phase of body, and the other end is connected with one end of the second outer groove 2, outside described second
The other end of groove 2 is connected with the upper pipe root face 5 of semi-circular shape, one end of described first internal groove 3 and the inner surface phase of body
Linking, the other end is connected with one end of the second internal groove 4, and the other end of described second internal groove 4 is blunt with the down tube of semi-circular shape
Side 6 connects, and the angle a between described first outer groove 1 and outer surface of tube body is less than the folder between the second outer groove 2 and outer surface of tube body
Angle a ', the angle b between described first internal groove 3 and inner surface of tube body are less than the angle between the second internal groove 4 and inner surface of tube body
b’.
Length L of the first outer groove 1 is more than length L of the second outer groove 2 ', length d of described first internal groove 3 is more than
Length d of the second internal groove 4 '.
Wherein angle a be 55 °～60 °, angle a ' be 70 °～75 °, angle b be 55 °～60 °, angle b ' be 70 °～
75°.Wherein preferred value is 58 ° for angle a, and described angle a ' is 73 °, and described angle b is 58 °, and described angle b ' is 73 °.
Length L of the first outer groove 1 is 5～30mm, length L of the second outer groove 2 ' it is 0～10mm, the first internal groove 3
Length d be 5～30mm, length d of the second internal groove 4 ' be 0～10mm.Its preferred value is that length L of the first outer groove 1 is
20mm, length L of the second outer groove 2 ' it is 5mm, length d of the first internal groove 3 is 20mm, the length of described second internal groove 4
D ' is 5mm.
The width c of upper pipe root face 5 is equal to the width c ' of down tube root face 6, and the width c of upper pipe root face 5 is 0.8～2.4mm.
As depicted in figs. 1 and 2, this groove employs the upper semicircumference of the mouth of pipe using outer groove type, will groove be opened in
On the outer wall of body, and lower half circumference employs the form of internal groove, will groove be opened on the inwall of pipeline, due to pipe
Body size is larger, if so all opening on the outer wall by whole circle groove as in the past, welder is when welding in welding
Carry out welding in the overhead position before and after needing when diverse location, downhand welding, the form such as vertical position welding, labor intensity especially big so that the low increase of efficiency
Cost, and this groove type half is in outer wall, half, on inwall, only needs downhand welding can complete when welding outer groove,
When welding internal groove, welder moves to inside tube cavity, is welded, also only need to carry out downhand welding is inside body
Can complete, greatly reduce the intensity of work.
And in order to further increase weld strength, specially outer groove is set to the outer groove 1 of two connected first
With the second outer groove 2, internal groove is arranged to two the first connected internal grooves 3 and the second internal groove 4, if only arranging a slope
In place of the end of mouth groove when welding is for most fragile, it is extremely difficult to full weld, increased one groove and make in welding
When can obtain full weld completely, so that bonding strength between steel pipe is increased further.
This utility model is had the effect that, it is outer groove that this groove half is arranged on upper semicircumference, and half is located at down
Semi-circumference is internal groove, can achieve when welding between two steel pipes outer groove and outer groove, internal groove and internal groove it
Between docking, the welding that can only just can smoothly the groove of both sides be guaranteed both quality and quantity completely by downhand welding when welding, both
Ensure that weld strength make again welding become convenience, laborsaving, and in order to increase the every side of weld strength be also provided with adaptable
Two grooves, considerably increase weld strength.
Claims (7)
1. a kind of new-type bevel for welding of large-scale steel pipe, is characterized in that：Including arranging along mouth of pipe upper semicircumference tube wall
One outer groove（1）, the second outer groove（2）With the first internal groove arranging along mouth of pipe lower half circumference inboard wall of tube body（3）, in second
Groove（4）, described first outer groove（1）One end be connected with the outer surface phase of body, the other end and the second outer groove（2）One
End connects, described second outer groove（2）The other end and semi-circular shape upper pipe root face（5）Connect, described first internal groove（3）
One end be connected with the inner surface phase of body, the other end and the second internal groove（4）One end connect, described second internal groove（4）
The other end and semi-circular shape down tube root face（6）Connect, described first outer groove（1）Angle a and between outer surface of tube body is little
In the second outer groove（2）Angle a ' and between outer surface of tube body, described first internal groove（3）Angle b and between inner surface of tube body
Less than the second internal groove（4）Angle b ' and between inner surface of tube body.
2. a kind of new-type bevel for welding of large-scale steel pipe according to claim 1, is characterized in that：Described first outer groove（1）
Length L be more than the second outer groove（2）Length L ', described first internal groove（3）Length d be more than the second internal groove（4）'s
Length d '.
3. a kind of new-type bevel for welding of large-scale steel pipe according to claim 1, is characterized in that：Described angle a be 55 °～
60 °, described angle a ' is 70 °～75 °, and described angle b is 55 °～60 °, and described angle b ' is 70 °～75 °.
4. a kind of new-type bevel for welding of large-scale steel pipe according to claim 3, is characterized in that：Described angle a is 58 °, institute
State angle a ' and be 73 °, described angle b is 58 °, described angle b ' is 73 °.
5. a kind of new-type bevel for welding of large-scale steel pipe according to claim 2, is characterized in that：Described first outer groove（1）
Length L be 5～30mm, described second outer groove（2）Length L ' be 0～10mm, described first internal groove（3）Length d
For 5～30mm, described second internal groove（4）Length d ' be 0～10mm.
6. a kind of new-type bevel for welding of large-scale steel pipe according to claim 5, is characterized in that：Described first outer groove（1）
Length L be 20mm, described second outer groove（2）Length L ' be 5mm, described first internal groove（3）Length d be 20mm,
Described second internal groove（4）Length d ' be 5mm.
7. a kind of new-type bevel for welding of large-scale steel pipe according to claim 1, is characterized in that：Described upper pipe root face（5）'s
Width c is equal to down tube root face（6）Width c ', described upper pipe root face（5）Width c be 0.8～2.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620981267.8U CN205967852U (en) | 2016-08-30 | 2016-08-30 | New -type welding groove of large -scale steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620981267.8U CN205967852U (en) | 2016-08-30 | 2016-08-30 | New -type welding groove of large -scale steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205967852U true CN205967852U (en) | 2017-02-22 |
Family
ID=58040737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620981267.8U Withdrawn - After Issue CN205967852U (en) | 2016-08-30 | 2016-08-30 | New -type welding groove of large -scale steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205967852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181104A (en) * | 2016-08-30 | 2016-12-07 | 渤海石油装备福建钢管有限公司 | A kind of new-type bevel for welding of large-scale steel pipe |
| CN114473278A (en) * | 2022-01-29 | 2022-05-13 | 中建钢构工程有限公司 | Method for welding steel material with Z-direction performance |
-
2016
- 2016-08-30 CN CN201620981267.8U patent/CN205967852U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181104A (en) * | 2016-08-30 | 2016-12-07 | 渤海石油装备福建钢管有限公司 | A kind of new-type bevel for welding of large-scale steel pipe |
| CN106181104B (en) * | 2016-08-30 | 2018-06-19 | 渤海石油装备福建钢管有限公司 | A kind of new-type welding groove of large-scale steel pipe |
| CN114473278A (en) * | 2022-01-29 | 2022-05-13 | 中建钢构工程有限公司 | Method for welding steel material with Z-direction performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20180619 |
|
| AV01 | Patent right actively abandoned |