CN202708347U - Anti-pulling welded steel tube - Google Patents
Anti-pulling welded steel tube Download PDFInfo
- Publication number
- CN202708347U CN202708347U CN 201220299099 CN201220299099U CN202708347U CN 202708347 U CN202708347 U CN 202708347U CN 201220299099 CN201220299099 CN 201220299099 CN 201220299099 U CN201220299099 U CN 201220299099U CN 202708347 U CN202708347 U CN 202708347U
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- China
- Prior art keywords
- welded steel
- steel tube
- pulling
- steel pipe
- utility
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- 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 - Fee Related
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Abstract
The utility model discloses an anti-pulling welded steel tube which is manufactured with cold rolling technology being adopted. The anti-pulling welded steel tube comprises a tube body, wherein a compact inactivation inner membrane layer formed by strengthening metals through cold extruding is arranged on the inner surface of the tube body. The anti-pulling welded steel tube is simple in structure. According to the anti-pulling welded steel tube, the anti-pulling capacity of a steel tube is improved, the hardness, the abrasive resistance, and the corrosion resistance of the inner surface of the steel tube are improved, and the application range of the anti-pulling welded steel tube is enlarged.
Description
Technical field
The utility model relates to the metallic material technical field, especially a kind of tension welded steel pipe.
Background technique
Welded steel pipe is by steel plate being made the base pipe, then the base pipe is carried out cold rolling processing, finally obtaining the welded steel pipe of all size.Welded steel pipe is economical and practical, and cost uses at the alternative seamless steel pipe of a lot of occasions well below seamless steel pipe.But welded steel pipe in the market is Shortcomings aspect tensile strength, and Applicable scope is restricted.
The model utility content
The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, provide a kind of tensile strength high, applied widely tension welded steel pipe.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of tension welded steel pipe, and adopt cold-rolling process to be made, comprise body, inner surface of tube body has the passivation theca interna by the formed compactness of cold hobbing reinforced metal.
The beneficial effects of the utility model are: the tension welded steel pipe that the utility model provides is simple in structure, has the passivation theca interna, improved the tensile strength of welded steel pipe, hardness, wear resistance and the anticorrosive property of welded steel pipe internal surface all are improved simultaneously, have enlarged the Applicable scope of welded steel pipe.
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further specified.
Fig. 1 is cross section structure schematic representation of the present utility model.
1. bodys, 2. passivation theca internas among the figure
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic representation that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
A kind of tension welded steel pipe as shown in Figure 1 adopts cold-rolling process to be made, and comprises body 1, and inner surface of tube body has the passivation theca interna 2 by the formed compactness of cold hobbing reinforced metal.
The processing of cold rolled precision welded steel pipe is on the basis of removing body 1 inner and outer welding burr, carries out extrusion-deformation processing at normal temperature or below the recrystallization temperature, and body 1 internal surface has formed the passivation theca interna 2 of compactness.Passivation theca interna 2 has improved the tensile strength of steel pipe internal-surface effectively.Simultaneously, the hardness of steel pipe internal-surface, wear resistance and anticorrosive property have also obtained effectively improving, and fabricating cost reduces, and has further enlarged the Applicable scope of tension welded steel pipe.
Above-mentioned mode of execution only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage that is familiar with technique can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed in the protection domain of the present utility model.
Claims (1)
1. a tension welded steel pipe adopts cold-rolling process to be made, and comprises body (1), and it is characterized in that: described body (1) internal surface has the passivation theca interna (2) by the formed compactness of cold hobbing reinforced metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299099 CN202708347U (en) | 2012-06-25 | 2012-06-25 | Anti-pulling welded steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299099 CN202708347U (en) | 2012-06-25 | 2012-06-25 | Anti-pulling welded steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708347U true CN202708347U (en) | 2013-01-30 |
Family
ID=47588653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220299099 Expired - Fee Related CN202708347U (en) | 2012-06-25 | 2012-06-25 | Anti-pulling welded steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708347U (en) |
-
2012
- 2012-06-25 CN CN 201220299099 patent/CN202708347U/en not_active Expired - Fee Related
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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: JIANGSU DIOUMU TUBE INDUSTRY CO., LTD. Free format text: FORMER OWNER: JIANGSU ZHONGYOU PRECISION TUBE MANUFATURING CO., LTD. Effective date: 20150612 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150612 Address after: 213000, Jiangsu Wujin District, Changzhou Province remote town, Qin new industrial concentration area Patentee after: Jiangsu Di Guan Pipe Industry Co., Ltd. Address before: 213011 new industrial park, remote view Town, Wujin District, Jiangsu, Changzhou Patentee before: Jiangsu Zhongyou Precision Tubulation Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20170625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |