CN104174778A - Novel casing pipe flaring mandrel - Google Patents
Novel casing pipe flaring mandrel Download PDFInfo
- Publication number
- CN104174778A CN104174778A CN201410330767.0A CN201410330767A CN104174778A CN 104174778 A CN104174778 A CN 104174778A CN 201410330767 A CN201410330767 A CN 201410330767A CN 104174778 A CN104174778 A CN 104174778A
- Authority
- CN
- China
- Prior art keywords
- plug
- mandrel
- casing pipe
- caput
- bar head
- 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.)
- Pending
Links
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention relates to a novel casing pipe flaring mandrel. The novel casing pipe flaring mandrel comprises a mandrel body, wherein a bar head sleeves the top end of the mandrel body. The outer diameter of the bar head is consistent with the inner diameter of a to-be-flared casing pipe. The bar head is connected with the mandrel body in a welding manner. The mandrel has characteristics such as hot abrasion resistance, softening resistance and hot fatigue resistance; the bar head can bear large axial pressure stress and radial pressure stress.
Description
Technical field
The invention belongs to the manufacture field of sleeve pipe, be specifically related to a kind of new casing enlarging plug
Background technology
Shipping industry development in recent years is rapid, and the production requirement of its supporting industries concerned is more and more higher, and its middle sleeve is as very important marine equipment product, and the sleeve pipe of some special type exists certain difficulty in processing and manufacturing process.
Summary of the invention
The object of the present invention is to provide a kind of new casing enlarging plug.
Technical scheme of the present invention is: a kind of new casing enlarging plug, comprise plug, and on the top of described plug, cover has caput.
The external diameter size of described caput is consistent with the casing inner diameter for the treatment of enlarging.
Described caput and plug are by being welded to connect.
In the present invention, described plug has the characteristic of heat resistanceheat resistant abrasiveness, softening resistance, thermal fatigue resistance; Described caput need have and bears very high axial tensile stress and radial compressive stress.The present invention is simple in structure, applies to actual production products obtained therefrom, and steady quality is reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure, 1, plug, 2, caput, 3, mother tube.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
A kind of new casing enlarging plug, comprises plug 1, and on the top of described plug 1, cover has caput 2.Described caput 2 and plug 1 are by being welded to connect.
The external diameter size of described caput is consistent with the casing inner diameter for the treatment of enlarging.
Operation principle: mother tube 3 is inserted in plug, in heating environment, mother tube 3 is passed forward, enters caput, then forms enlarging; Described caput need have and bears very high axial tensile stress and radial compressive stress, the sleeve pipe steady quality of producing.
Claims (2)
1. new casing enlarging plug, comprises plug, has described in caput the external diameter size of caput consistent with the casing inner diameter for the treatment of enlarging at the top cover of described plug.
2. new casing enlarging plug according to claim 1, is characterized in that: described caput and plug are by being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410330767.0A CN104174778A (en) | 2014-07-09 | 2014-07-09 | Novel casing pipe flaring mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410330767.0A CN104174778A (en) | 2014-07-09 | 2014-07-09 | Novel casing pipe flaring mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104174778A true CN104174778A (en) | 2014-12-03 |
Family
ID=51956283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410330767.0A Pending CN104174778A (en) | 2014-07-09 | 2014-07-09 | Novel casing pipe flaring mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104174778A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161112A (en) * | 1978-02-21 | 1979-07-17 | The Babcock & Wilcox Company | Tube drawing technique |
| CN1267576A (en) * | 1999-03-18 | 2000-09-27 | 武湘川 | Mandrel |
| CN2408983Y (en) * | 2000-02-18 | 2000-12-06 | 烟台鲁宝钢管有限责任公司 | Mandrel |
| CN202900916U (en) * | 2012-11-11 | 2013-04-24 | 毛自强 | Mandrel head of pipe making machine |
| CN104349853A (en) * | 2012-05-29 | 2015-02-11 | 杰富意钢铁株式会社 | Expanded metal tube manufacturing method |
-
2014
- 2014-07-09 CN CN201410330767.0A patent/CN104174778A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161112A (en) * | 1978-02-21 | 1979-07-17 | The Babcock & Wilcox Company | Tube drawing technique |
| CN1267576A (en) * | 1999-03-18 | 2000-09-27 | 武湘川 | Mandrel |
| CN2408983Y (en) * | 2000-02-18 | 2000-12-06 | 烟台鲁宝钢管有限责任公司 | Mandrel |
| CN104349853A (en) * | 2012-05-29 | 2015-02-11 | 杰富意钢铁株式会社 | Expanded metal tube manufacturing method |
| CN202900916U (en) * | 2012-11-11 | 2013-04-24 | 毛自强 | Mandrel head of pipe making machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141203 |