CN101762616A - Nondestructive testing method for residual stress on surface of large roller - Google Patents
Nondestructive testing method for residual stress on surface of large roller Download PDFInfo
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- CN101762616A CN101762616A CN 200810207677 CN200810207677A CN101762616A CN 101762616 A CN101762616 A CN 101762616A CN 200810207677 CN200810207677 CN 200810207677 CN 200810207677 A CN200810207677 A CN 200810207677A CN 101762616 A CN101762616 A CN 101762616A
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Abstract
The invention relates to a nondestructive testing method, in particular to a nondestructive testing method for a large roller. In the nondestructive testing method for residual stress on the surface of a large roller, a ray stress diffractometer and an angle measuring nose are included. The method comprises the following steps of: arranging a group of special electromagnetic permanent control devices on the top of the roll surface of the roller; fixing the angle measuring nose of the ray stress diffractometer on the group of electromagnetic permanent control devices; and testing the residual stress on the surface of the roller by using the ray stress diffractometer. The invention can test the residual stress on the surface of the roller for the workpiece of the large cold roller, meet the requirement of the nondestructive test of the large roller and achieve tracking test for the finished product roller or the roller in use.
Description
Technical field
The present invention relates to a kind of non-destructive testing method, be specifically related to a kind of large-scale roller non-destructive testing method.
Background technology
Residual stress measuring method can be divided into mechanical measuring means and physical measurement method two big classes both at home and abroad, and is wherein comparatively ripe with the development of blind hole method (mechanical measuring means) and x ray diffraction method (physical measurement method).The blind hole method is a kind of destructive test, can carry out execute-in-place, and measuring speed is fast, and the result is more accurate, and is less demanding to measuring condition, still, can't implement to detect for indestructible workpiece at all; And X-ray diffraction method can only the surface measurements unrelieved stress, and measured surface is had relatively high expectations, and requires to avoid the interference of drawing it because of the surface local distortion.But this method is at present through being expounded through peer review unique technology that can't harm and test unrelieved stress more easily both at home and abroad.
Along with improving constantly of breaker roll manufacturing requirement and request for utilization, no matter be in roll manufacture process or roll use, the analysis of Residual Stress technology of roller surface has played very important vital role.
But the past only can adopt the blind hole method to carry out the test of roller surface unrelieved stress in roller surface boring, and this kind method must have certain destruction to the body of roll, can not satisfy and make finished product or in use nondestructive test request.Along with the miniaturization and the portability of X ray stress diffraction instrument, and the maturation of applying X-ray diffraction approach testing large roller surface unrelieved stress technology, as, adopt X-350AX ray stress diffractometer,
But when test, the ray stress diffraction device must be fixed on the detection that could realize breaker roll on the roll, otherwise large-scale roller surface residual stress non-destructive testing still can't be realized.
Summary of the invention
Technical matters to be solved by this invention is not have good method to realize the defective of ray stress diffractometer to large-scale roller surface residual stress non-destructive testing in the prior art, the nondestructive testing method for residual stress on a kind of large-scale roller surface is provided, thereby makes the test of large-scale roller surface residual stress can not destroy roll.
For solving the problems of the technologies described above, the nondestructive testing method for residual stress on a kind of large-scale roller surface, it comprises a ray stress diffractometer and Angle measurement, one group of special electromagnetic permanent control device, it comprises the following steps:
One group of special electromagnetic permanent control device is set at the roll top;
The electromagnetic block of electromagnetic permanent control device is fixed in the roll upper surface;
The base plate of ray stress diffractometer is fixed on the electromagnetic permanent control device is combined into measuring table
The Angle measurement of alpha cellulose a gage is placed on the measuring table;
Utilize the ray stress diffractometer to carry out the test of roller surface unrelieved stress.
The nondestructive testing method for residual stress on described large-scale roller surface, described magnet are that described magnet is the permanent magnet that has solenoid.
The nondestructive testing method for residual stress on described large-scale roller surface, described magnet have 2-4.
The nondestructive testing method for residual stress on described large-scale roller surface, described magnet and roll top surface of contact for the V-arrangement face of indent, trapezoidal faces or and the roll arc surface that is complementary the needed horizontal survey platform of Angle measurement of stress ga(u)ge is provided when cooperating the roll curved surface.
The present invention can realize the surface residual stress test harmless to the large-scale cold roller workpiece, satisfies the non-destructive testing (NDT) of large-scale roller, finishes to polishing roll or in the tracking with roll and detects; And flexible, the portable breaker roll body of roll any part of method energy of the present invention detects and finishes the new product and the on-line tracing operation of large-scale roller workpiece.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is a synoptic diagram of the present invention.
Fig. 2 is the described magnetic block side view among the embodiment.
Embodiment
See also Fig. 1 and Fig. 2, as we know from the figure, the nondestructive testing method for residual stress on a kind of large-scale roller of the present invention surface, when it comprises a ray stress diffractometer 5 and Angle measurement 6 tests:
Earlier one group of (2) magnetic block 1 is placed on the top of roll 4, the arc-shaped surface of magnet 1 bottom surface and roll 4 is fitted, described magnetic block 1 preferably has the permanent magnet of solenoid, with electric control gear this magnet 1 is fixed on the roll, in addition alpha cellulose a gage base plate 2 and calutron are fixed, like this at the synthetic test platform of the top group of roll 4 circular arc types, by bolt X ray stress diffractometer 5, Angle measurement 6 etc. test unit can easily be placed on the test platform, carry out the unrelieved stress on roll 4 surfaces and the measurement of retained austenite.
Described magnet bottom surface is V-arrangement face, trapezoidal faces or the arc surface of indent, and present embodiment is the trapezoidal faces (see figure 2).
Claims (4)
1. the nondestructive testing method for residual stress on a large-scale roller surface, it comprises: ray stress diffractometer and Angle measurement is characterized in that it comprises the following steps:
One group of special electromagnetic permanent control device is set at the roll top;
The electromagnetic block of electromagnetic permanent control device is fixed in the roll upper surface;
The base plate of ray stress diffractometer is fixed on the electromagnetic permanent control device is combined into measuring table;
The Angle measurement of alpha cellulose a gage is placed on the measuring table.
Utilize the ray stress diffractometer to carry out the test of roller surface unrelieved stress.
2. the nondestructive testing method for residual stress on large-scale roller according to claim 1 surface is characterized in that, described electromagnetic permanent control device has solenoid.
3. the nondestructive testing method for residual stress on large-scale roller according to claim 1 and 2 surface is characterized in that, described electromagnetic block has 2.
4. the nondestructive testing method for residual stress on large-scale roller according to claim 1 and 2 surface, it is characterized in that, described electromagnetic block and roll top surface of contact for the V-arrangement face of indent, trapezoidal faces or and roll be complementary arc surface so that the needed horizontal survey platform of Angle measurement of stress ga(u)ge to be provided when cooperating the roll curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810207677 CN101762616B (en) | 2008-12-24 | 2008-12-24 | Nondestructive testing method for residual stress on surface of large roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810207677 CN101762616B (en) | 2008-12-24 | 2008-12-24 | Nondestructive testing method for residual stress on surface of large roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101762616A true CN101762616A (en) | 2010-06-30 |
| CN101762616B CN101762616B (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810207677 Active CN101762616B (en) | 2008-12-24 | 2008-12-24 | Nondestructive testing method for residual stress on surface of large roller |
Country Status (1)
| Country | Link |
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| CN (1) | CN101762616B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577261A (en) * | 2017-09-28 | 2019-04-05 | 湖南杉杉新能源有限公司 | For lithium electricity mill floor except the portable of iron removes iron trolley |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005031329A1 (en) * | 2003-08-04 | 2005-04-07 | X-Ray Optical Systems, Inc. | In-situ x-ray diffraction system using sources and detectors at fixed angular positions |
| CN201034547Y (en) * | 2007-04-20 | 2008-03-12 | 宝山钢铁股份有限公司 | Roller surface angle positioning apparatus |
| CN201344910Y (en) * | 2008-12-09 | 2009-11-11 | 上海宝钢工业检测公司 | Magnetic target stand for non-destructive testing of residual stress on surface of large roller |
-
2008
- 2008-12-24 CN CN 200810207677 patent/CN101762616B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577261A (en) * | 2017-09-28 | 2019-04-05 | 湖南杉杉新能源有限公司 | For lithium electricity mill floor except the portable of iron removes iron trolley |
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| Publication number | Publication date |
|---|---|
| CN101762616B (en) | 2012-12-19 |
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