CN105067425A - Extensometer guide rod system and method for high-temperature tension test by using system - Google Patents
Extensometer guide rod system and method for high-temperature tension test by using system Download PDFInfo
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- CN105067425A CN105067425A CN201510576580.3A CN201510576580A CN105067425A CN 105067425 A CN105067425 A CN 105067425A CN 201510576580 A CN201510576580 A CN 201510576580A CN 105067425 A CN105067425 A CN 105067425A
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Abstract
The invention relates to an extensometer guide rod system, which is used for performing high-temperature tension test on a tension sample and comprises a first sample clamp, a second sample clamp, a positioning device and an extension guide rod; the first sample clamp clamps and sleeves one end of the tension sample; the second sample clamp clamps and sleeves the other end of the tension sample; the positioning device is connected and arranged between the first sample clamp and the second sample clamp; one end of the extension guide rod penetrates the second sample clamp and then is fixedly connected with the first sample clamp; the other end of the extension guide rod is connected with a normal temperature extensometer. The invention also relates to a method for the high-temperature tension test by using the extensometer guide rod system. The extensometer guide rod system is simple in structure, convenient and safe in clamping, fast to use, low in manufacturing cost, wide in applicable range and capable of effectively improving the accuracy of the normal temperature extensometer for the high-temperature tension test.
Description
Technical field
The present invention relates to a kind of frock clamp, specifically refer to a kind of extensometer direct lever system, and utilize this extensometer direct lever system to carry out the method for high temperature tension test.
Background technology
Nuclear power generating equipment manufacturing enterprise, when testing starting material examination, welding material examination, qualification of welding procedure and product witness part, all needs the drawing by high temperature index examining material usually.Due in the case of a high temperature, most of material and wlding are no remarkable yields, so just need to measure Rp0.2(regulation plastic elongation intensity), in this, as performance assessment criteria.The mensuration of Rp0.2 need adopt extensometer, but at high operating temperatures, how to utilize existing normal temperature extensometer to be the difficult point existed in prior art to measure the drawing by high temperature Rp0.2 of sample.
Summary of the invention
The object of this invention is to provide a kind of extensometer direct lever system and utilize this system to carry out the method for high temperature tension test, structure is simple, convenient mounting and clamping is safe, use is quick, low cost of manufacture, applied widely, effectively improve the accuracy that normal temperature extensometer is used for high temperature tension test.
For achieving the above object, the invention provides a kind of extensometer direct lever system, it, for carrying out high temperature tension test to tensile sample, comprises: the first specimen holder, and its gripping sleeve is located at one end of tensile sample; Second specimen holder, its gripping sleeve is located at the other end of tensile sample; Locating device, its connection is arranged between the first specimen holder and the second specimen holder; Extend guide rod, its one end is fixedly connected with the first specimen holder through after the second specimen holder, and the other end is connected with normal temperature extensometer, gathers the material deformation amount of tensile sample in hot environment.
Between the first described specimen holder and tensile sample, and between the second specimen holder and tensile sample, space washer is set respectively.
Described space washer is made up of the gasket rings that two is semi-circular structure.
The first described specimen holder and the second specimen holder all offer multiple evenly spaced threaded hole, after tensile sample being loaded the first specimen holder and the second specimen holder, by tightening screw with garter extension sample in each threaded hole.
The length of described locating device is the demarcation distance of high temperature tension test.
One end of described locating device is fixedly connected with the first specimen holder, the other end and the second specimen holder close contact; Or one end of described locating device is fixedly connected with the second specimen holder, the other end and the first specimen holder close contact.
Described extensometer direct lever system also comprises guide bar support, and its one end is fixedly connected with the second specimen holder, and the other end is for fixedly mounting normal temperature extensometer.
The lower end bending of described guide bar support is arranged, in handle-shaped.
The present invention also provides a kind of method utilizing extensometer direct lever system to carry out high temperature tension test, specifically comprises following steps:
S1, by tensile sample clamping in extensometer direct lever system;
S2, the extensometer direct lever system being provided with tensile sample is placed in high temperature furnace and carries out heating and thermal insulation;
S3, normal temperature extensometer is arranged on extensometer direct lever system guide bar support on and be connected with guide rod of extending, make tensile sample and whole extensometer direct lever system be positioned at high temperature furnace, and normal temperature extensometer is positioned at outside high temperature furnace;
S4, utilize normal temperature extensometer to carry out high temperature tension test to tensile sample, by extending, guide rod gathers the material deformation amount of tensile sample in hot environment.
In described S1, specifically comprise following steps:
S11, tensile sample is each passed through the first specimen holder and the second specimen holder, and makes to be fixedly connected on the locating device on one of them specimen holder and another specimen holder close contact;
S12, between the first specimen holder and tensile sample, and be respectively charged into space washer between the second specimen holder and tensile sample;
Tighten screw in S13, each threaded hole on the first specimen holder, make the first specimen holder garter extension sample; Tighten screw in each threaded hole on the second specimen holder, make the second specimen holder garter extension sample;
S14, by between the first specimen holder and tensile sample, and the space washer between the second specimen holder and tensile sample takes out, and completes the clamping of tensile sample.
Extensometer direct lever system provided by the present invention and utilize this system to carry out the method for high temperature tension test, has that structure is simple, convenient mounting and clamping safety, uses advantage that is quick, low cost of manufacture; Due in high temperature tension test process, extensometer direct lever system can make tensile sample be positioned at high temperature furnace, normal temperature extensometer is then positioned at outside high temperature furnace, really solves the acquisition problems of normal temperature extensometer for high temperature tension test, effectively improves the accuracy of high temperature tension test; In addition, extensometer direct lever system is applicable to the quick position clamping of the tensile sample of number of different types, applied widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the extensometer direct lever system in the present invention;
Fig. 2 is the structural representation of the specimen holder in the present invention;
Fig. 3 is the structural representation of the space washer in the present invention.
Embodiment
Below in conjunction with Fig. 1 ~ Fig. 3, describe a preferred embodiment of the present invention in detail.
As shown in Figure 1, extensometer direct lever system provided by the present invention, it, for carrying out high temperature tension test to tensile sample 7, comprises: the first specimen holder 1, and its gripping sleeve is located at one end of tensile sample 7; Second specimen holder 2, its gripping sleeve is located at the other end of tensile sample 7; Locating device 3, its connection is arranged between the first specimen holder 1 and the second specimen holder 2; Extend guide rod 4, its one end is fixedly connected with the first specimen holder 1 through after the second specimen holder 2, and the other end is connected with normal temperature extensometer 8, gathers the material deformation amount of tensile sample 7 in hot environment.
Between the first described specimen holder 1 and tensile sample 7, and second arranges space washer 6 between specimen holder 2 and tensile sample 7 respectively, for playing positioning action when installation first specimen holder 1 and the second specimen holder 2, produce skew to prevent from clamping in process, thus affect the accuracy of high temperature tension test.
As shown in Figure 3, described space washer 6 is made up of two gasket rings 61 in semi-circular structure, so that after completing the clamping of tensile sample 7, take out space washer 6 smoothly.
As shown in Figure 2, the first described specimen holder 1 and the second specimen holder 2 all offer multiple evenly spaced threaded hole 11, after tensile sample 7 being loaded the first specimen holder 1 and the second specimen holder 2, by tightening screw with garter extension sample 7 in each threaded hole 11.In the present embodiment, the first described specimen holder 1 and the second specimen holder 2 all offer 3 threaded holes 11, and uniform intervals distribution, the angle namely between adjacent two threaded holes is 120 °.
The length of described locating device 3 is the demarcation distance of high temperature tension test.In the present embodiment, the length of locating device 3 is 50mm.
One end of described locating device 3 is fixedly connected with the first specimen holder 1, the other end and the second specimen holder 2 close contact; Or one end of described locating device 3 is fixedly connected with the second specimen holder 2, the other end and the first specimen holder 1 close contact.
Described extensometer direct lever system also comprises guide bar support 5, and its one end is fixedly connected with the second specimen holder 2, and the other end is for fixedly mounting normal temperature extensometer 8.
The lower end bending of described guide bar support 5 is arranged, and in handle-shaped, is convenient to the installation of normal temperature extensometer 8 and carries out high temperature tension test.
The present invention also provides a kind of method utilizing extensometer direct lever system to carry out high temperature tension test, specifically comprises following steps:
S1, by tensile sample 7 clamping in extensometer direct lever system;
S2, the extensometer direct lever system being provided with tensile sample 7 is placed in high temperature furnace and carries out heating and thermal insulation; In the present embodiment, the temperature after heating maintains between 350 DEG C ~ 500 DEG C;
S3, normal temperature extensometer 8 is arranged on extensometer direct lever system guide bar support 5 on and be connected with guide rod 4 of extending, make tensile sample 7 and whole extensometer direct lever system be positioned at high temperature furnace, and only have normal temperature extensometer 8 to be positioned at outside high temperature furnace;
S4, utilize normal temperature extensometer 8 pairs of tensile samples 7 to carry out high temperature tension test, by extending, the material deformation amount of guide rod 4 pairs of tensile samples 7 in hot environment gathers.
In described S1, specifically comprise following steps:
S11, tensile sample 7 is each passed through the first specimen holder 1 and the second specimen holder 2, and makes to be fixedly connected on the locating device 3 on one of them specimen holder and another specimen holder close contact;
S12, between the first specimen holder 1 and tensile sample 7, and be respectively charged into space washer 6 between the second specimen holder 2 and tensile sample 7, produce skew to prevent from clamping tensile sample 7 in process;
Tighten screw in S13, each threaded hole 11 on the first specimen holder 1, make the first specimen holder 1 garter extension sample 7; Tighten screw in each threaded hole 11 on the second specimen holder 2, make the second specimen holder 2 garter extension sample 7;
S14, by between the first specimen holder 1 and tensile sample 7, and the space washer 6 between the second specimen holder 2 and tensile sample 7 takes out, and completes the clamping of tensile sample 7.
Extensometer direct lever system provided by the present invention and utilize this system to carry out the method for high temperature tension test, has that structure is simple, convenient mounting and clamping safety, uses advantage that is quick, low cost of manufacture; Due in high temperature tension test process, extensometer direct lever system can make tensile sample be positioned at high temperature furnace, normal temperature extensometer is then positioned at outside high temperature furnace, really solves the acquisition problems of normal temperature extensometer for high temperature tension test, effectively improves the accuracy of high temperature tension test; In addition, extensometer direct lever system is applicable to the quick position clamping of the tensile sample of number of different types, applied widely.Such as these two kinds of tensile samples of M16, M20, the installation site only need exchanging two space washers can realize clamping.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. an extensometer direct lever system, for carrying out high temperature tension test to tensile sample (7), is characterized in that, comprise:
First specimen holder (1), its gripping sleeve is located at one end of tensile sample (7);
Second specimen holder (2), its gripping sleeve is located at the other end of tensile sample (7);
Locating device (3), its connection is arranged between the first specimen holder (1) and the second specimen holder (2);
Extend guide rod (4), its one end is fixedly connected with the first specimen holder (1) afterwards through the second specimen holder (2), and the other end is connected with normal temperature extensometer (8), gathers the material deformation amount of tensile sample (7) in hot environment.
2. extensometer direct lever system as claimed in claim 1, is characterized in that, between described the first specimen holder (1) and tensile sample (7), and arrange space washer (6) respectively between the second specimen holder (2) and tensile sample (7).
3. extensometer direct lever system as claimed in claim 2, is characterized in that, described space washer (6) is made up of the gasket rings (61) that two is semi-circular structure.
4. extensometer direct lever system as claimed in claim 3, it is characterized in that, described the first specimen holder (1) and the second specimen holder (2) all offer multiple evenly spaced threaded hole (11), after tensile sample (7) being loaded the first specimen holder (1) and the second specimen holder (2), by tightening screw with garter extension sample (7) in each threaded hole (11).
5. extensometer direct lever system as claimed in claim 1, it is characterized in that, the length of described locating device (3) is the demarcation distance of high temperature tension test.
6. extensometer direct lever system as claimed in claim 5, it is characterized in that, one end of described locating device (3) is fixedly connected with the first specimen holder (1), the other end and the second specimen holder (2) close contact; Or one end of described locating device (3) is fixedly connected with the second specimen holder (2), the other end and the first specimen holder (1) close contact.
7. extensometer direct lever system as claimed in claim 1, it is characterized in that, also comprise guide bar support (5), its one end is fixedly connected with the second specimen holder (2), and the other end is for fixedly mounting normal temperature extensometer (8).
8. extensometer direct lever system as claimed in claim 7, is characterized in that, the lower end bending of described guide bar support (5) is arranged, in handle-shaped.
9. utilize extensometer direct lever system to carry out a method for high temperature tension test, it is characterized in that, comprise following steps:
S1, by tensile sample (7) clamping in extensometer direct lever system;
S2, the extensometer direct lever system being provided with tensile sample (7) is placed in high temperature furnace and carries out heating and thermal insulation;
S3, the guide bar support (5) normal temperature extensometer (8) being arranged on extensometer direct lever system is upper and be connected with guide rod of extending (4), make tensile sample (7) and whole extensometer direct lever system be positioned at high temperature furnace, and only have normal temperature extensometer (8) to be positioned at outside high temperature furnace;
S4, utilize normal temperature extensometer (8) to carry out high temperature tension test to tensile sample (7), by guide rod of extending (4), the material deformation amount of tensile sample (7) in hot environment is gathered.
10. utilize extensometer direct lever system to carry out the method for high temperature tension test as claimed in claim 9, it is characterized in that, in described S1, comprise following steps:
S11, tensile sample (7) is each passed through the first specimen holder (1) and the second specimen holder (2), and makes to be fixedly connected on the locating device (3) on one of them specimen holder and another specimen holder close contact;
S12, between the first specimen holder (1) and tensile sample (7), and be respectively charged into space washer (6) between the second specimen holder (2) and tensile sample (7);
Tighten screw in S13, each threaded hole (11) on the first specimen holder (1), make the first specimen holder (1) garter extension sample (7); Tighten screw in each threaded hole (11) on the second specimen holder (2), make the second specimen holder (2) garter extension sample (7);
S14, by between the first specimen holder (1) and tensile sample (7), and the space washer (6) between the second specimen holder (2) and tensile sample (7) takes out, and completes the clamping of tensile sample (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510576580.3A CN105067425A (en) | 2015-09-11 | 2015-09-11 | Extensometer guide rod system and method for high-temperature tension test by using system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510576580.3A CN105067425A (en) | 2015-09-11 | 2015-09-11 | Extensometer guide rod system and method for high-temperature tension test by using system |
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| CN105067425A true CN105067425A (en) | 2015-11-18 |
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| CN201510576580.3A Pending CN105067425A (en) | 2015-09-11 | 2015-09-11 | Extensometer guide rod system and method for high-temperature tension test by using system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106319183A (en) * | 2016-07-28 | 2017-01-11 | 浙江建鑫型钢科技有限公司 | Test tool for guide rail heat treatment |
| CN107389444A (en) * | 2017-09-19 | 2017-11-24 | 中国核动力研究设计院 | A kind of ceramic high temperature bend test chucking appliance system of measurable deformation |
| CN108956281A (en) * | 2018-06-04 | 2018-12-07 | 中国航发北京航空材料研究院 | A kind of fixation device of sheet metal drawing by high temperature extensometer |
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| CN101608988A (en) * | 2009-07-20 | 2009-12-23 | 江苏大学 | A kind of uni-directional stretching test clamp for warm shaping of metal plate |
| CN203337456U (en) * | 2013-06-27 | 2013-12-11 | 攀钢集团成都钢钒有限公司 | Extensometer type displacement detecting device |
| CN203643264U (en) * | 2014-01-14 | 2014-06-11 | 美特斯工业***（中国）有限公司 | Maximum force elongation measuring device for steel strands |
| CN204944932U (en) * | 2015-09-11 | 2016-01-06 | 上海电气核电设备有限公司 | For the extensometer direct lever system of high temperature tension test |
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2015
- 2015-09-11 CN CN201510576580.3A patent/CN105067425A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608988A (en) * | 2009-07-20 | 2009-12-23 | 江苏大学 | A kind of uni-directional stretching test clamp for warm shaping of metal plate |
| CN203337456U (en) * | 2013-06-27 | 2013-12-11 | 攀钢集团成都钢钒有限公司 | Extensometer type displacement detecting device |
| CN203643264U (en) * | 2014-01-14 | 2014-06-11 | 美特斯工业***（中国）有限公司 | Maximum force elongation measuring device for steel strands |
| CN204944932U (en) * | 2015-09-11 | 2016-01-06 | 上海电气核电设备有限公司 | For the extensometer direct lever system of high temperature tension test |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106319183A (en) * | 2016-07-28 | 2017-01-11 | 浙江建鑫型钢科技有限公司 | Test tool for guide rail heat treatment |
| CN107389444A (en) * | 2017-09-19 | 2017-11-24 | 中国核动力研究设计院 | A kind of ceramic high temperature bend test chucking appliance system of measurable deformation |
| CN108956281A (en) * | 2018-06-04 | 2018-12-07 | 中国航发北京航空材料研究院 | A kind of fixation device of sheet metal drawing by high temperature extensometer |
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Application publication date: 20151118 |
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