CN201149149Y - Composite steel tube of inner lining corrosion resisting alloy layer extending outside - Google Patents
Composite steel tube of inner lining corrosion resisting alloy layer extending outside Download PDFInfo
- Publication number
- CN201149149Y CN201149149Y CNU2007203113789U CN200720311378U CN201149149Y CN 201149149 Y CN201149149 Y CN 201149149Y CN U2007203113789 U CNU2007203113789 U CN U2007203113789U CN 200720311378 U CN200720311378 U CN 200720311378U CN 201149149 Y CN201149149 Y CN 201149149Y
- Authority
- CN
- China
- Prior art keywords
- alloy layer
- resistant alloy
- corrosion
- composite steel
- steel tube
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 20
- 239000010959 steel Substances 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 239000001997 corrosion-resisting alloy Substances 0.000 title 1
- 230000007797 corrosion Effects 0.000 claims abstract description 31
- 238000005260 corrosion Methods 0.000 claims abstract description 31
- 239000000956 alloy Substances 0.000 claims abstract description 30
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 30
- 238000003466 welding Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 6
- 210000001503 joint Anatomy 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Revetment (AREA)
Abstract
The utility model discloses a composite steel pipe with a lining corrosion resistant alloy layer extending out of a base pipe body. The composite steel pipe comprises the base pipe body and a tubular corrosion-resistant alloy layer which are connected fixedly and integrally. The two ends of the corrosion-resistant alloy layer extend out of the two ends of base pipe body. The composite steel pipe has the advantages that the difficulty in butt-welding of the composite steel pipe with the corrosion resistant alloy layer as the lining is solved; installation work efficiency is improved; the welding quality is ensured and the installation cost is reduced.
Description
Technical field
The utility model relates to a kind of composite steel tube, the composite steel tube that particularly a kind of liner corrosion-resistant alloy layer is lifted one's head.
Background technique
The butt-welded bind mode of the general employing of the installation of conveying steel pipe.When liner corrosion-resistant alloy layer composite steel tube docks welding as conveying steel pipe, because the two ends of composite steel tube are flush, the end face that is the liner corrosion-resistant alloy layer is concordant with the end face of parent tube, can't realize the welding respectively of two kinds of different metals, when the thinner thickness of the multiple layer of liner corrosion resistant alloy welding more difficult, pierce through corrosion-resistant alloy layer easily, expose parent tube, form the big negative electrode of primary anode, accelerated corrosion, cause near the corrosion-resistant alloy layer weld seam distortion, peel off.During on-the-spot the installation, according to physical length, cut, cutting forms the tack end face, and the bad at the scene transition zone groove that carries out is processed, bottoming when being unfavorable for the field joint welding.
The model utility content
The purpose of this utility model is the deficiency that exists at prior art, provides a kind of reasonable in design, simple in structure, can guarantee the composite steel tube that the liner corrosion-resistant alloy layer of welding quality is lifted one's head.
For achieving the above object, the technical solution of the utility model is: the composite steel tube that a kind of liner corrosion-resistant alloy layer is lifted one's head, comprise parent tube body and the tubulose corrosion-resistant alloy layer that is arranged on the parent tube inboard wall of tube body, parent tube body and corrosion-resistant alloy layer are fixedly connected as an integral body, it is characterized in that: the two ends of parent tube body are stretched out at the two ends of described corrosion-resistant alloy layer.
The utility model compared with prior art has the following advantages: the utility model is reasonable in design, simple in structure, solved the difficult problem of liner corrosion-resistant alloy layer composite steel tube butt joint welding effectively, on-the-spot mechanical means that can be very easy to use is realized end recesses processing, helps the field welding bottoming.Improve installment work efficient, guaranteed welding quality, reduced installation cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the side view of Fig. 1.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
The composite steel tube that a kind of liner corrosion-resistant alloy layer is as depicted in figs. 1 and 2 lifted one's head, comprise parent tube body 1 and the tubulose corrosion-resistant alloy layer 2 that is arranged on parent tube body 1 inwall, parent tube body 1 is fixedly connected as an integral body with corrosion-resistant alloy layer 2, and the two ends of parent tube body 1 are stretched out at the two ends of described corrosion-resistant alloy layer 2.
As shown in Figure 1, the two ends of described parent tube body 1 are groove; The two ends of described corrosion-resistant alloy layer 2 are flat mouthful.
Adopt said structure, the utility model has solved the difficult problem of liner corrosion-resistant alloy layer composite steel tube butt joint welding effectively, and the mechanical means that the scene can be very easy to use is realized end recesses processing, helps the field welding bottoming.Improve installment work efficient, guaranteed welding quality, reduced installation cost.
Claims (3)
1, a kind of liner corrosion-resistant alloy layer composite steel tube of lifting one's head, comprise parent tube body (1) and be arranged on tubulose corrosion-resistant alloy layer (2) on parent tube body (1) inwall, parent tube body (1) is fixedly connected as an integral body with corrosion-resistant alloy layer (2), and it is characterized in that: the two ends of parent tube body (1) are stretched out at the two ends of described corrosion-resistant alloy layer (2).
2, a kind of liner corrosion-resistant alloy layer according to claim 1 composite steel tube of lifting one's head, it is characterized in that: the two ends of described parent tube body (1) are groove.
3, a kind of liner corrosion-resistant alloy layer according to claim 1 composite steel tube of lifting one's head is characterized in that: the two ends of described corrosion-resistant alloy layer (2) are flat mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203113789U CN201149149Y (en) | 2007-12-24 | 2007-12-24 | Composite steel tube of inner lining corrosion resisting alloy layer extending outside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203113789U CN201149149Y (en) | 2007-12-24 | 2007-12-24 | Composite steel tube of inner lining corrosion resisting alloy layer extending outside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149149Y true CN201149149Y (en) | 2008-11-12 |
Family
ID=40116918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203113789U Expired - Lifetime CN201149149Y (en) | 2007-12-24 | 2007-12-24 | Composite steel tube of inner lining corrosion resisting alloy layer extending outside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149149Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576200A (en) * | 2019-09-27 | 2021-03-30 | 宝山钢铁股份有限公司 | Steel pipe air-tight seal structure with inner liner |
-
2007
- 2007-12-24 CN CNU2007203113789U patent/CN201149149Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576200A (en) * | 2019-09-27 | 2021-03-30 | 宝山钢铁股份有限公司 | Steel pipe air-tight seal structure with inner liner |
| CN112576200B (en) * | 2019-09-27 | 2023-03-14 | 宝山钢铁股份有限公司 | Steel pipe air-tight seal structure with inner liner |
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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: SHANGHAI HILONG ANTI-CORROSION TECHNOLOGY ENGINEER Free format text: FORMER OWNER: GUO HENGGANG Effective date: 20130613 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710065 XI'AN, SHAANXI PROVINCE TO: 201900 BAOSHAN, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130613 Address after: 201900 No. 1825 East Luo Road, Baoshan Industrial Park, Shanghai Patentee after: Shanghai Hilong Anti-Corrosion Technology Engineering Co., Ltd. Address before: 710065, No. two, No. 32, Xi'an, Shaanxi Patentee before: Guo Henggang |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081112 |