CN104634605A - Cutting method for detecting longitudinal residual stress of bar material - Google Patents
Cutting method for detecting longitudinal residual stress of bar material Download PDFInfo
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- CN104634605A CN104634605A CN201410827678.7A CN201410827678A CN104634605A CN 104634605 A CN104634605 A CN 104634605A CN 201410827678 A CN201410827678 A CN 201410827678A CN 104634605 A CN104634605 A CN 104634605A
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- Prior art keywords
- cutting method
- residual stress
- bar
- cutting
- longitudinal residual
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Abstract
The invention relates to a cutting method for detecting a longitudinal residual stress of a bar material. The cutting method is characterized by comprising the following steps: cutting a rod material section with the length of 500mm from one end of a to-be-detected rod material as a detection component, respectively measuring out 15mm from a central part of a bar body of the detection component to two sides, and cutting off a test sample with the length of 30mm along the peripheral direction. The cutting method disclosed by the invention has the advantages that the cutting method is simple, a cutting part is reasonably selected, and the longitudinal residual stress of the bar material can be rapidly and accurately detected.
Description
Technical field
The present invention relates to a kind of detection bar longitudinal residual stress cutting method, belong to detection technique field.
Background technology
Bar is one of major product of Baogang, and be the necessity of the engineerings such as building, bridge, the unrelieved stress existed in cold-drawn bar is very high, very easily ruptures, and affects the quality of product, has direct relation with people's productive life.
Because bar residual stress test does not have standard, do not detect the report of bar with strain gauge method, the selection of patch location seems particularly important, and how to detect is the problem studied at present.
Summary of the invention
The object of the invention is in order to fast, accurately bar longitudinal residual stress can be detected, provide a kind of and detect bar longitudinal residual stress cutting method.
Technical scheme of the present invention is as follows:
Intercept the bar section of long 500mm from bar one end to be detected as detection piece, in the centre of detection piece rod body, respectively measure 15mm to both sides, along the circumferential direction cut the sample that length is 30mm.
Advantage of the present invention is: method is simple, and cutting part is chosen rationally, can detect the longitudinal residual stress of bar fast and accurately.
Accompanying drawing explanation
Fig. 1 is cutting position schematic diagram of the present invention.
Embodiment
With reference to accompanying drawing, intercept the bar section of long 500mm from bar one end to be detected as detection piece 1, in the centre of detection piece rod body, respectively measure 15mm to both sides, along the circumferential direction cut the sample that length is 30mm.
Because the stress surveyed is longitudinal residual stress, so cut direction is detection piece circumference, make detection piece when not fettering, release stress, bar longitudinal stress 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. one kind is detected bar longitudinal residual stress cutting method, it is characterized in that: intercept the bar section of long 500mm from bar one end to be detected as detection piece, in the centre of detection piece rod body, respectively measure 15mm to both sides, along the circumferential direction cut the sample that length is 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827678.7A CN104634605A (en) | 2014-12-26 | 2014-12-26 | Cutting method for detecting longitudinal residual stress of bar material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827678.7A CN104634605A (en) | 2014-12-26 | 2014-12-26 | Cutting method for detecting longitudinal residual stress of bar material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104634605A true CN104634605A (en) | 2015-05-20 |
Family
ID=53213600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410827678.7A Pending CN104634605A (en) | 2014-12-26 | 2014-12-26 | Cutting method for detecting longitudinal residual stress of bar material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104634605A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002115A (en) * | 2016-05-26 | 2016-10-12 | 镇江市经纬工程机械有限公司 | Eccentric shaft production line quality testing method |
| CN107314844A (en) * | 2017-06-05 | 2017-11-03 | 内蒙古包钢钢联股份有限公司 | Rail residual stress tests fixture and its experimental method |
| CN110405279A (en) * | 2019-08-07 | 2019-11-05 | 四川华都核设备制造有限公司 | A kind of acquisition methods of pneumatic shell raw bar material and the bar |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013032991A (en) * | 2011-08-02 | 2013-02-14 | Nippon Steel & Sumitomo Metal | Residual stress measuring method for metallic material |
| JP2014157135A (en) * | 2013-02-18 | 2014-08-28 | Toshiba Corp | Residual stress inspection device, inspection method and inspection program |
-
2014
- 2014-12-26 CN CN201410827678.7A patent/CN104634605A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013032991A (en) * | 2011-08-02 | 2013-02-14 | Nippon Steel & Sumitomo Metal | Residual stress measuring method for metallic material |
| JP2014157135A (en) * | 2013-02-18 | 2014-08-28 | Toshiba Corp | Residual stress inspection device, inspection method and inspection program |
Non-Patent Citations (3)
| Title |
|---|
| 李元齐等: ""高建钢厚壁H型钢残余应力测试研究"", 《建筑钢结构进展》 * |
| 王辅等: ""应用切断法、切片法测定残余应力"", 《四川建筑科学研究》 * |
| 路俊攀: ""铜及铜合金加工制品残余应力的测定方法"", 《无损检测》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002115A (en) * | 2016-05-26 | 2016-10-12 | 镇江市经纬工程机械有限公司 | Eccentric shaft production line quality testing method |
| CN106002115B (en) * | 2016-05-26 | 2018-01-16 | 镇江市经纬工程机械有限公司 | Eccentric shaft production line quality detecting method |
| CN107314844A (en) * | 2017-06-05 | 2017-11-03 | 内蒙古包钢钢联股份有限公司 | Rail residual stress tests fixture and its experimental method |
| CN110405279A (en) * | 2019-08-07 | 2019-11-05 | 四川华都核设备制造有限公司 | A kind of acquisition methods of pneumatic shell raw bar material and the bar |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150520 |