CN104483173B - One kind detection H profile steel lateral thrust residual stress cutting method - Google Patents
One kind detection H profile steel lateral thrust residual stress cutting method Download PDFInfo
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- CN104483173B CN104483173B CN201410804130.0A CN201410804130A CN104483173B CN 104483173 B CN104483173 B CN 104483173B CN 201410804130 A CN201410804130 A CN 201410804130A CN 104483173 B CN104483173 B CN 104483173B
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- profile steel
- residual stress
- cutting method
- lateral thrust
- test block
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Abstract
The present invention relates to one kind detection H profile steel lateral thrust residual stress cutting method, it is characterized in that：Interception 500mm is long in detected H profile steel one section longitudinally cuts a 400mm gap long as test block in the center of the web of one end of test block, discharges residual stress.Its advantage is：It is easy to operate, accuracy rate is improved, loss is reduced, it is cost-effective.
Description
Technical field
The present invention relates to one kind detection H profile steel lateral thrust residual stress cutting method, belong to detection field.
Background technology
H profile steel is mainly used in bridge, ocean engineering, plant equipment, house owed by a citizen, highway, industrial building, oil drilling and puts down
The aspects such as platform, with greatly developing for China's infrastructure, the need for large H-shaped steel can not meet development, therefore
In the urgent need to development large H-shaped steel.
The aligning of H profile steel is one important procedure in production process, determines the final mass and precision of H profile steel.To difference
The H profile steel of specification uses its corresponding straightening process, is ensureing the edge of a wing and web not flexural deformation, reaches the feelings of overall glacing flatness
Under condition, residual stress is reduced, it is to avoid nose and the phenomenon of bend fracture occur after aligning.
Because H profile steel residual stress test does not have standard, the report of H profile steel is not detected with strain gauge method, how to detect is
The problem studied at present.The mechanical means of residual stress has：Boring method, fluting method, patterning method.So where drilling,
Slot, be cut to the key of detection, the position opened is not to can not be detected result.
The content of the invention
Stress distribution the invention aims to can accurately detect H profile steel web, there is provided one kind detection H types
Steel lateral thrust residual stress cutting method.
Technical scheme is as follows：
Long one section of 500mm is intercepted in detected H profile steel as test block, in the web of one end of test block
A 400mm gap long is longitudinally cut in heart position, discharges residual stress.
Principle of the invention is：Bend fracture problem according to H profile steel to be solved, the big region paster of selection stress, and
Cutting workpiece carries out Stress Release, measures final stress value.
It is an advantage of the invention that：It is easy to operate, accuracy rate is improved, loss is reduced, it is cost-effective.
Specific embodiment
Long one section of 500mm is intercepted in detected H profile steel as test block, in the web of one end of test block
A 400mm gap long is longitudinally cut in heart position, discharges residual stress.
Because the stress surveyed is lateral thrust stress, so cut direction is test block length direction, there is no test block
Stress is discharged in the case of constraint, force-bearing situation when could truly measure H profile steel forward direction bending, cut direction is incorrect, surveys
The stress value for going out is not bending stresses, or does not measure result or data are inaccurate.
Claims (1)
1. it is a kind of to detect H profile steel lateral thrust residual stress cutting method, it is characterized in that：Intercepted in detected H profile steel
Long one section of 500mm longitudinally cuts a 400mm seam long as test block in the center of the web of one end of test block
Gap, discharges residual stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804130.0A CN104483173B (en) | 2014-12-23 | 2014-12-23 | One kind detection H profile steel lateral thrust residual stress cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804130.0A CN104483173B (en) | 2014-12-23 | 2014-12-23 | One kind detection H profile steel lateral thrust residual stress cutting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104483173A CN104483173A (en) | 2015-04-01 |
| CN104483173B true CN104483173B (en) | 2017-06-13 |
Family
ID=52757743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410804130.0A Withdrawn - After Issue CN104483173B (en) | 2014-12-23 | 2014-12-23 | One kind detection H profile steel lateral thrust residual stress cutting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN104483173B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113670810A (en) * | 2021-07-22 | 2021-11-19 | 包头钢铁（集团）有限责任公司 | Test method for testing residual stress of H-shaped steel by adopting linear cutting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818763A (en) * | 2012-07-30 | 2012-12-12 | 首钢总公司 | Hot-rolled steel plate residual stress calculating method suitable to production field |
| CN103234666A (en) * | 2013-04-26 | 2013-08-07 | 内蒙古包钢钢联股份有限公司 | Method for testing residual stress of steel rail |
| CN103278443A (en) * | 2013-04-26 | 2013-09-04 | 内蒙古包钢钢联股份有限公司 | Technology for testing seamless tube residual stress by pasting method |
| CN103759865A (en) * | 2014-01-02 | 2014-04-30 | 镇江耐丝新型材料有限公司 | Method for detecting residual stress of cut steel wire |
-
2014
- 2014-12-23 CN CN201410804130.0A patent/CN104483173B/en not_active Withdrawn - After Issue
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818763A (en) * | 2012-07-30 | 2012-12-12 | 首钢总公司 | Hot-rolled steel plate residual stress calculating method suitable to production field |
| CN103234666A (en) * | 2013-04-26 | 2013-08-07 | 内蒙古包钢钢联股份有限公司 | Method for testing residual stress of steel rail |
| CN103278443A (en) * | 2013-04-26 | 2013-09-04 | 内蒙古包钢钢联股份有限公司 | Technology for testing seamless tube residual stress by pasting method |
| CN103759865A (en) * | 2014-01-02 | 2014-04-30 | 镇江耐丝新型材料有限公司 | Method for detecting residual stress of cut steel wire |
Non-Patent Citations (5)
| Title |
|---|
| Q460高强度焊接H型钢残余应力试验研究;童乐为 等;《工业建筑》;20120131;第42卷(第1期);51-55 * |
| residual stress and torsional buckling strength of H and cruciform columns;fumio nishino 等;《trans. of JSCE》;19681231(第160期);75-87 * |
| Residual-stress Measurement by the Sectioning Method;N. Tebedge, G. Alpsten and L. Tall;《experimental mechanics》;19730228;88-96 * |
| 热轧大型H型钢残余应力相关研究;朱国明 等;《塑性工程学报》;20101031;第17卷(第5期);88-92 * |
| 焊接与热轧工字钢残余应力的测定;王国周和赵文蔚;《工业建筑》;19860731(第7期);32-37 * |
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|---|---|
| CN104483173A (en) | 2015-04-01 |
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