CN202757827U - Device for sample stress corrosion testing - Google Patents
Device for sample stress corrosion testing Download PDFInfo
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- CN202757827U CN202757827U CN 201220304891 CN201220304891U CN202757827U CN 202757827 U CN202757827 U CN 202757827U CN 201220304891 CN201220304891 CN 201220304891 CN 201220304891 U CN201220304891 U CN 201220304891U CN 202757827 U CN202757827 U CN 202757827U
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Abstract
The utility model discloses a device for sample stress corrosion testing. The device is used for testing two samples at the same time. The device for the sample stress corrosion testing comprises two clamping structures and a support block, wherein the two clamping structures are respectively arranged at two ends of the two samples, the two samples are arranged in parallel transversely, the two clamping structures are both used for clamping the two samples, each clamping structure comprises a stud and two nuts, one stud penetrates through the two samples sequentially, two ends of each stud, exposing out of the two samples, are respectively meshed with the two nuts, the support block is arranged between the two samples, and the support block is used for separating the two samples. According to the device for the sample stress corrosion testing, due to the fact that the support block is supported between the two samples, stress is exerted at two ends of the two samples by the two clamping structures, and the testing is achieved by means of cooperation of the clamping structures and the support block. The device for the sample stress corrosion testing shortens the test period and improves testing efficiency; and the device for the sample stress corrosion testing is small, exquisite and simple in structure, low in cost and convenient to operate.
Description
Technical field
Corrosion resistant alloy material stress corrosion (cracking) test field when the utility model relates to oil gas field with subsurface tool selection, Adaptability Evaluation such as tubing and casing, particularly a kind of sample stress corrosion (cracking) test device.
Background technology
Stress corrosion fracture refers to the breakoff phenomenon that metal material produces under the acting in conjunction of tension and corrosion environment, this kind phenomenon has become to one of maximum etch state of material harm at present, so the research of counter stress corrosion has caused people's attention; Research to the stress corrosion opening cracking maleate sensitivity of material often adopts test method to carry out, stress corrosion (cracking) test refers to the test under stress and corrosive medium act on simultaneously material carried out, generally all adopt the solution infusion method, carry out at normal temperatures and pressures according to existing standard, with the sample of fixing stress corrosion (cracking) test with a test of the each loading of device, behind the suitable stress of sample loading, stress corrosion (cracking) test is placed on device in the glass container of taking advantage of solution, finishes test after 720 hours.
For present stress corrosion (cracking) test device, the inventor finds to exist at least following problem:
Generally obtaining test findings needs a plurality of samples are tested, and existing stress corrosion (cracking) test can only be loaded the sample of a test with device at every turn, causes long and inefficiency of test period, wastes energy; Existing stress corrosion (cracking) test is larger with the device average physique, structure is heavy, it is higher to make use inconvenience and cost, and because stress corrosion (cracking) test is more with the material exposed area of device own, when in solution, testing, sample and stress corrosion (cracking) test directly affect the test result of sample with easily forming bimetallic corrosion between the device.
The utility model content
Existing stress corrosion (cracking) test is low with unit efficiency in order to solve, build is large, structure is heavy, make use inconvenience and cost is higher and sample between easily form the problem of bimetallic corrosion, the utility model embodiment provides a kind of sample stress corrosion (cracking) test device.Described technical scheme is as follows:
A kind of sample stress corrosion (cracking) test device, in order to test simultaneously two samples, described sample stress corrosion (cracking) test comprises with device: two cover clamping structure and back-up blocks, described two cover clamping structures are separately positioned on the two ends of described two samples, described two samples are up and down and are arranged in parallel, described two cover clamping structures are all for described two samples of clamping, every cover clamping structure includes a stud bolt and two nuts, a described stud bolt passes described two samples successively, expose the two ends of a described stud bolt of described two samples and meshing respectively described two nuts, a described back-up block places between described two samples, and a described back-up block is used for isolating described two samples.
Particularly, as preferably, the two ends of every sample in described two samples are provided with through hole, and described through-hole diameter is 7mm, and described through hole is used for holding described stud bolt.
More specifically, as preferably, described stud bolt and described nut all adopt nickel alloy C-276 to make.
Particularly, as preferably, a described back-up block is glass cylinder, and described glass cylinder bottom surface diameter is 15mm, and the height of described glass cylinder is 15mm.
Particularly, as preferably, described sample stress corrosion (cracking) test also comprises rock-steady structure with device, by described rock-steady structure so that described sample stress corrosion (cracking) test steadily put with device.
As preferably, described rock-steady structure is two hold-doun nuts, and the stud bolts that described two hold-doun nuts are engaged on respectively in the described two cover clamping structures are terminal.
Particularly, as preferably, described sample stress corrosion (cracking) test also comprises pad with device, is provided with described pad separately between described nut and the described sample, and described pad and the contacted one side of described sample are dome shape.
More specifically, described pad adopts resin material to make.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The utility model supports between two samples by back-up block, two clamp structures are at two sample two ends stress applications, cooperation by clamp structure and back-up block is tested, the utility model can once load simultaneously two samples and test, and greatly shortens the whole test period and has improved test efficiency; The utility model structure is small and exquisite simple, with low cost, easy to operate, when in solution, testing, the material exposed area of the utility model own is less, make to be difficult to form bimetallic corrosion between sample and the utility model, thereby improved the decay resistance of sample stress corrosion (cracking) test with device itself, also guaranteed the accuracy of test result simultaneously.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation that device is used in sample stress corrosion (cracking) test described in the utility model;
Fig. 2 is the structural representation of back-up block described in the utility model.
Wherein: 1 clamp structure, 11 stud bolts, 12 nuts, 13 pads, 2 back-up blocks, 3 rock-steady structures, 31 hold-doun nuts, 4 samples, 41 through holes, D glass cylinder bottom surface diameter, the height of H glass cylinder.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
As shown in Figure 1, a kind of sample stress corrosion (cracking) test device, in order to test simultaneously two samples 4, described sample stress corrosion (cracking) test comprises with device: two cover clamping structure 1 and back-up blocks 2, described two cover clamping structures 1 are separately positioned on the two ends of described two samples 4, described two samples 4 are up and down and are arranged in parallel, described two cover clamping structures 1 are all for described two samples 4 of clamping, every cover clamping structure 1 includes a stud bolt 11 and two nuts 12, a described stud bolt 11 passes described two samples 4 successively, expose the two ends of a described stud bolt 11 of described two samples 4 and meshing respectively described two nuts 12, a described back-up block 2 places between described two samples 4, and a described back-up block 2 is used for isolating described two samples 4.
Wherein, sample 4 is oil country tubular goods, sample 4 dimensional requirements are 140mm * 10mm * 3mm, error requirements is ± 0.2mm, up and down two sample 4 parallel placements, back-up block 2 is placed on up and down the center between two samples 4 sidewards, respectively with two stud bolts 11 string at the two ends of two samples 4 up and down, then the supporting nut 12 of screwing on, reach and connect the up and down purpose of two samples 4, by the tightening nuts 12 simultaneously of both sides up and down, produce areas of stress concentration in the middle of making sample 4, the size of loading stress is directly proportional with the axial distance that nut 12 is screwed into, and the axial distance that namely is screwed at stud bolt 11 by nut 12 draws the size of the stress that sample 4 finally bears.
The utility model supports between two samples 4 by back-up block 2, two clamp structures 1 are at two samples, 4 two ends stress applications, cooperation by clamp structure 1 and back-up block 2 is tested, compare existing sample stress corrosion (cracking) test and can only load a sample 4 with device at every turn, the utility model can once load simultaneously two samples 4 and test, and has greatly shortened the whole test period and has improved test efficiency; The utility model structure is small and exquisite simple, with low cost, easy to operate, when in solution, testing, the sample stress corrosion (cracking) test is less with the material exposed area of device own, sample 4 and sample stress corrosion (cracking) test be with being difficult to form bimetallic corrosion between the device, thereby also guaranteed the accuracy of test result when having improved the sample stress corrosion (cracking) test with the decay resistance of device itself.
Particularly, as preferably, as shown in Figure 1, the two ends of the every sample 4 in described two samples 4 are provided with through hole 41, and described through hole 41 diameters are 7mm, and described through hole 41 is used for holding described stud bolt 11.
More specifically, as preferably, as shown in Figure 1, described stud bolt 11 and described nut 12 all adopt nickel alloy C-276 to make.Compare existing sample stress corrosion (cracking) test carbon steel or the common stainless steel material of device, the nickel alloy C-276 material itself has better high temperature high voltage resistant corrosive nature.
Particularly, as preferably, as shown in Figure 2, a described back-up block 2 is glass cylinder, and described glass cylinder bottom surface diameter D is 15mm, and the high H of described glass cylinder is 15mm.Glass cylinder is solid, and in actual applications, it is the most practical that glass cylinder meets above size.
Particularly, as preferably, as shown in Figure 1, described sample stress corrosion (cracking) test also comprises rock-steady structure 3 with device, by described rock-steady structure 3 so that described sample stress corrosion (cracking) test steadily put with device.
As preferably, as shown in Figure 1, described rock-steady structure 3 is two hold-doun nuts 31, and described two hold-doun nuts 31 are engaged on respectively stud bolt 11 ends in the described two cover clamping structures 1.Hold-doun nut 31 is positioned on the test plane, the engagement of hold-doun nut 31 and stud bolt 11 1 ends because hold-doun nut 31 surface areas are larger, can so that whole sample stress corrosion (cracking) test with vertical being placed on the test platform stably of device.
Particularly, as preferably, as shown in Figure 1, described sample stress corrosion (cracking) test also comprises pad 13 with device, is provided with described pad 13 separately between described nut 12 and the described sample 4, and described pad 13 is dome shape with described sample 4 contacted one sides.
More specifically, described pad 13 adopts resin material to make.
Pad 13 is the resin macromolecular material of high temperature resistant (〉=280 ℃), place between sample 4 and the nut 12, because the one side of pad 13 contact samples 4 through holes 41 is dome shape, pad 13 just in time can be stuck in through hole 41 places on the sample 4, and resin has certain toughness, can make pad 13 between sample 4 and nut 12, play buffer compartment from effect, prevent from being damaged when sample 4 from contacting with nut 12.
Above-mentioned the utility model embodiment sequence number does not represent the quality of embodiment just to description.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. sample stress corrosion (cracking) test device, in order to test simultaneously two samples, it is characterized in that, described sample stress corrosion (cracking) test comprises with device: two cover clamping structure and back-up blocks, described two cover clamping structures are separately positioned on the two ends of described two samples, described two samples are up and down and are arranged in parallel, described two cover clamping structures are all for described two samples of clamping, every cover clamping structure includes a stud bolt and two nuts, a described stud bolt passes described two samples successively, expose the two ends of a described stud bolt of described two samples and meshing respectively described two nuts, a described back-up block places between described two samples, and a described back-up block is used for isolating described two samples.
2. sample stress corrosion (cracking) test device according to claim 1 is characterized in that, the two ends of every sample in described two samples are provided with through hole, and described through-hole diameter is 7mm, and described through hole is used for holding described stud bolt.
3. sample stress corrosion (cracking) test device according to claim 2 is characterized in that, described stud bolt and described nut all adopt nickel alloy C-276 to make.
4. sample stress corrosion (cracking) test device according to claim 1 is characterized in that, a described back-up block is glass cylinder, and described glass cylinder bottom surface diameter is 15mm, and the height of described glass cylinder is 15mm.
5. sample stress corrosion (cracking) test device according to claim 1 is characterized in that, described sample stress corrosion (cracking) test also comprises rock-steady structure with device, by described rock-steady structure so that described sample stress corrosion (cracking) test steadily put with device.
6. sample stress corrosion (cracking) test device according to claim 5 is characterized in that, described rock-steady structure is two hold-doun nuts, and the stud bolt that described two hold-doun nuts are engaged on respectively in the described two cover clamping structures is terminal.
7. the described sample stress corrosion (cracking) test of each claim device according to claim 1-6, it is characterized in that, described sample stress corrosion (cracking) test also comprises pad with device, be provided with described pad separately between described nut and the described sample, described pad and the contacted one side of described sample are dome shape.
8. sample stress corrosion (cracking) test device according to claim 7 is characterized in that, described pad adopts resin material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304891 CN202757827U (en) | 2012-06-26 | 2012-06-26 | Device for sample stress corrosion testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304891 CN202757827U (en) | 2012-06-26 | 2012-06-26 | Device for sample stress corrosion testing |
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| Publication Number | Publication Date |
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| CN202757827U true CN202757827U (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220304891 Expired - Fee Related CN202757827U (en) | 2012-06-26 | 2012-06-26 | Device for sample stress corrosion testing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374640A (en) * | 2013-08-16 | 2015-02-25 | 中国科学院金属研究所 | Device for carrying out metal stress corrosion test in gap |
| CN106226182A (en) * | 2016-07-12 | 2016-12-14 | 中国商用飞机有限责任公司 | For producing the fixture of stress in tubulose testpieces |
| CN109269930A (en) * | 2018-11-29 | 2019-01-25 | 哈尔滨电气动力装备有限公司 | The multi-functional stress corrosion (cracking) test fitting device of adjustable pitch |
| WO2023073557A1 (en) * | 2021-10-29 | 2023-05-04 | Centros Culturales De México, A.C. | Compact release mechanism for a nanosatellite |
-
2012
- 2012-06-26 CN CN 201220304891 patent/CN202757827U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374640A (en) * | 2013-08-16 | 2015-02-25 | 中国科学院金属研究所 | Device for carrying out metal stress corrosion test in gap |
| CN104374640B (en) * | 2013-08-16 | 2016-10-05 | 中国科学院金属研究所 | Metal stress etching experiment device in a kind of gap |
| CN106226182A (en) * | 2016-07-12 | 2016-12-14 | 中国商用飞机有限责任公司 | For producing the fixture of stress in tubulose testpieces |
| CN109269930A (en) * | 2018-11-29 | 2019-01-25 | 哈尔滨电气动力装备有限公司 | The multi-functional stress corrosion (cracking) test fitting device of adjustable pitch |
| CN109269930B (en) * | 2018-11-29 | 2023-12-26 | 哈尔滨电气动力装备有限公司 | Multifunctional stress corrosion test tool device with adjustable distance |
| WO2023073557A1 (en) * | 2021-10-29 | 2023-05-04 | Centros Culturales De México, A.C. | Compact release mechanism for a nanosatellite |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20210626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |