CN104551226A - Cutting method for testing axial residual stress of seamless tube - Google Patents
Cutting method for testing axial residual stress of seamless tube Download PDFInfo
- Publication number
- CN104551226A CN104551226A CN201410827712.0A CN201410827712A CN104551226A CN 104551226 A CN104551226 A CN 104551226A CN 201410827712 A CN201410827712 A CN 201410827712A CN 104551226 A CN104551226 A CN 104551226A
- Authority
- CN
- China
- Prior art keywords
- cutting method
- seamless tube
- cutting
- residual stress
- axial residual
- 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
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a cutting method for testing axial residual stress of a seamless tube. The cutting method is characterized by comprising the following steps of cutting out a seamless tube which is 1000mm long from one end of a to-be-tested bar to serve as a tested piece; measuring for 15mm to two sides respectively from the central position in the length direction of the tested piece, and respectively describing two circles vertical to the axis; then, cutting along the two described circles to form a circular ring which is 30mm wide. The cutting method has the advantages that the method is simple, cutting position selection is reasonable, and the axial residual stress of the seamless tube can be rapidly and accurately tested.
Description
Technical field
The present invention relates to a kind of cutting method of testing the axial unrelieved stress of solid drawn tube, belong to detection technique field.
Background technology
What unrelieved stress physical test method adopted has: x-ray method, method of magnetic, brittle coating method, optical method, acoustic method, electric resistance strain film method, wherein: electric resistance strain film method is a kind of method of relatively generally acknowledging both at home and abroad, the residual stress test of rail adopts paster method at present, performs European EN13674-1 standard.Up to the present, the residual stress test method of weldless steel tube does not have standard, and part adopts the method estimation of theory calculate, and adopt paster method actual measurement to have no report, also nobody studies specially, and the STRESS VARIATION at each position of steel pipe is all unclear.
Adopt electric resistance strain film method (paster method) to test the axial unrelieved stress of solid drawn tube, need counter stress to discharge, how to cut tested solid drawn tube and cut direction is the key detected, the selection of cutting position seems particularly important.
Summary of the invention
The object of the invention is, in order to fast, accurately detect the axial unrelieved stress of solid drawn tube, to provide a kind of cutting method of testing the axial unrelieved stress of solid drawn tube.
Technical scheme of the present invention is as follows:
The seamless pipeline section of long 1000mm is intercepted as detection piece from bar one end to be detected, in the center of the length direction of detection piece respectively to two-sided measurement 15mm, and draw two circles perpendicular to axis respectively, then cut along drawn circle, cut out the annulus of a wide 30mm.
Advantage of the present invention is: method is simple, and cutting position is selected rationally, to detect the axial unrelieved stress of solid drawn tube fast and accurately.
Accompanying drawing explanation
Fig. 1 is cutting position schematic diagram of the present invention.
Embodiment
With reference to accompanying drawing, the seamless pipeline section of long 1000mm is intercepted as detection piece 1 from bar one end to be detected, in the center of the length direction of detection piece respectively to two-sided measurement 15mm, and draw two circles perpendicular to axis respectively, then cut along drawn circle band saw, cut out the annulus of a wide 30mm.
Because the stress surveyed is axial unrelieved stress, so cut direction is detection piece circumferencial direction, make workpiece when not fettering, release stress, weldless steel tube force-bearing situation could be measured truly, cut direction is incorrect, and the stress value measured is not meridional stress value, or does not measure result or data are inaccurate.
Claims (1)
1. test the cutting method of the axial unrelieved stress of solid drawn tube for one kind, it is characterized in that: intercept the seamless pipeline section of long 1000mm from bar one end to be detected as detection piece, in the center of the length direction of detection piece respectively to two-sided measurement 15mm, and draw two circles perpendicular to axis respectively, then cut along drawn circle, cut out the annulus of a wide 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827712.0A CN104551226A (en) | 2014-12-26 | 2014-12-26 | Cutting method for testing axial residual stress of seamless tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827712.0A CN104551226A (en) | 2014-12-26 | 2014-12-26 | Cutting method for testing axial residual stress of seamless tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104551226A true CN104551226A (en) | 2015-04-29 |
Family
ID=53068875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410827712.0A Pending CN104551226A (en) | 2014-12-26 | 2014-12-26 | Cutting method for testing axial residual stress of seamless tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104551226A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017757A (en) * | 2016-06-13 | 2016-10-12 | 苏州热工研究院有限公司 | Method for measuring residual stress on inner wall of small internal diameter pipeline |
| CN106679870A (en) * | 2016-12-30 | 2017-05-17 | 内蒙古包钢钢联股份有限公司 | Method for analyzing timeliness of steel rail |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10137850A (en) * | 1996-11-08 | 1998-05-26 | Sanyo Special Steel Co Ltd | Method for straightening low residual stress of seamless steel tube |
| CN1913985A (en) * | 2004-02-05 | 2007-02-14 | 住友金属工业株式会社 | Cold-finished seamless steel pipe |
| CN101074919A (en) * | 2007-06-29 | 2007-11-21 | 中国石油天然气集团公司 | Method for computing spiral seam submerged-arc welding pipe residual stress |
| CN102183458A (en) * | 2010-12-30 | 2011-09-14 | 北京理工大学 | Method and system for measuring residual stresses |
| CN103364336A (en) * | 2013-07-15 | 2013-10-23 | 江苏科技大学 | Method for testing full view of inner bidirectional residual stress of circumferential welding line |
-
2014
- 2014-12-26 CN CN201410827712.0A patent/CN104551226A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10137850A (en) * | 1996-11-08 | 1998-05-26 | Sanyo Special Steel Co Ltd | Method for straightening low residual stress of seamless steel tube |
| CN1913985A (en) * | 2004-02-05 | 2007-02-14 | 住友金属工业株式会社 | Cold-finished seamless steel pipe |
| CN101074919A (en) * | 2007-06-29 | 2007-11-21 | 中国石油天然气集团公司 | Method for computing spiral seam submerged-arc welding pipe residual stress |
| CN102183458A (en) * | 2010-12-30 | 2011-09-14 | 北京理工大学 | Method and system for measuring residual stresses |
| CN103364336A (en) * | 2013-07-15 | 2013-10-23 | 江苏科技大学 | Method for testing full view of inner bidirectional residual stress of circumferential welding line |
Non-Patent Citations (1)
| Title |
|---|
| 王辅、王泽霖、吴惠弼: "《应用切断法、切片法测定残余应力》", 《四川建筑科学研究》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017757A (en) * | 2016-06-13 | 2016-10-12 | 苏州热工研究院有限公司 | Method for measuring residual stress on inner wall of small internal diameter pipeline |
| CN106679870A (en) * | 2016-12-30 | 2017-05-17 | 内蒙古包钢钢联股份有限公司 | Method for analyzing timeliness of steel rail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103278443A (en) | Technology for testing seamless tube residual stress by pasting method | |
| MX2013004133A (en) | Method for measuring remote field eddy current thickness in multiple tubular configuration. | |
| JP2017026354A5 (en) | ||
| BR112013018615A2 (en) | flow meter sealer, method for tapering a flow meter, and flow measurement system | |
| GB201220521D0 (en) | Method of assessing and condition monitoring of fluid conduits and apparatus therefor | |
| CN202814322U (en) | Concentricity detection device for sleeve part | |
| WO2016030059A3 (en) | Method for operating a nuclear magnetic resonance flow meter and nuclear magnetic resonance flow meter | |
| CN104551226A (en) | Cutting method for testing axial residual stress of seamless tube | |
| CN104568232A (en) | Method for detecting longitudinal residual stress of bar | |
| MX361368B (en) | Detecting an inaccurate flow rate measurement by a vibratory meter. | |
| CN104596684A (en) | Transverse residual stress detection method for steel rail | |
| CN104458120A (en) | Verification system of pressure measuring instrument | |
| CN104634605A (en) | Cutting method for detecting longitudinal residual stress of bar material | |
| CN104568246A (en) | Surface mounting method for testing axial residual stress of seamless tube | |
| CN104180933A (en) | Method for detecting residual stress of in-service composite component through X-rays | |
| CN202255174U (en) | Go/no go gauge for detecting car door frame gap | |
| CN104501687A (en) | Corner weld seam inspection ruler | |
| CN203965052U (en) | Platinum resistance temperature sensor protection stationary installation | |
| CN203385700U (en) | Portable type ultrasonic guided-wave detection test block for axial defects | |
| CN203364753U (en) | Device for detecting inner diameter of cylinder liner | |
| CN204007736U (en) | A kind of electromagnetic flowmeter | |
| CN104568234A (en) | Detecting method for axial residual stress test of seamless tube | |
| CN202947640U (en) | Tool for detecting distance from external end face to bottom of inner hole | |
| CN104568244A (en) | Cutting method for detecting transverse residual stress of steel rail | |
| RU2011147295A (en) | METHOD OF REMOTE MAGNETOMETRY FOR DIAGNOSTIC OF VIABLE CURRENTS ON MAIN PIPELINES AND DEVICE FOR ITS IMPLEMENTATION |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150429 |