CN2767993Y - Clamp for testing high temperature tensile property of thin-walled pipe - Google Patents
Clamp for testing high temperature tensile property of thin-walled pipe Download PDFInfo
- Publication number
- CN2767993Y CN2767993Y CN 200420055165 CN200420055165U CN2767993Y CN 2767993 Y CN2767993 Y CN 2767993Y CN 200420055165 CN200420055165 CN 200420055165 CN 200420055165 U CN200420055165 U CN 200420055165U CN 2767993 Y CN2767993 Y CN 2767993Y
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- cylinder
- anchor clamps
- bottom plate
- thin
- high temperature
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Abstract
The utility model relates to a clamp for testing the high temperature tensile property of a thin-walled pipe, which relates to an appliance used for the tensile property of a metal pipe, particularly a clamp for testing the high temperature tensile property of the whole pipe segment of the thin-walled pipe (the wall thickness is less than 2MM). The utility model comprises a main plate of the clamp and an auxiliary clamping plate of the clamp. Screw bolts pass through the main plate and the auxiliary clamping plate, and the plates are fixed and connected by screw nuts. In the high temperature tension test of the thin-walled pipe, the utility model can well overcome the phenomena that a sample is slipped and broken at a root part. Moreover, the clamp and the sample can be simultaneously put into a heating furnace for heating. Temperature gradient on the length direction of the sample is reduced, and thus experimental results can be more accurate and reliable.
Description
Technical field
A kind of anchor clamps of testing the thin-wall pipes high temperature tensile properties relate to the utensil that a kind of metal pipe material tensile property is used, and particularly testing thin-wall pipes (wall thickness is less than 2mm) whole tube section sample high temperature tensile properties is used anchor clamps.
Background technology
At present, thin-wall pipes is when carrying out high temperature tension test, and the lengthening tubing specimen lengths that adopt make sample stretch out the outer and anchor clamps ways of connecting of heating furnace more, and this method of clamping has two kinds of defectives: 1: can cause the waste of test material, increase experimentation cost.2: during test, on the tubular product sample length direction, can produce thermograde, make between the actual performance of test result and tubing to have error.Also have a kind of conical anchor clamps, mainly form by conical confidential reference items and overcoat two parts, on conical confidential reference items and the face that sample contacts serration is arranged, during high temperature tension test, overcoat compresses conical confidential reference items, thereby the confidential reference items tapering being changed sample is produced serration on holding force and the confidential reference items clamps sample to the snap-in force of sample.This anchor clamps easily cause sample to skid during test or stress is concentrated sample is broken in retained part, thereby influence the accuracy of high temperature tensile properties.
Summary of the invention
The purpose of this utility model is the deficiency that exists at above-mentioned prior art, and a kind of anchor clamps that can effectively overcome the deficiency that experimentation cost increase, sample skid, there is error in the test findings test thin-wall pipes high temperature tensile properties that existing anchor clamps and method of clamping cause when test thin-wall pipes high temperature tensile properties are provided.
The utility model is achieved through the following technical solutions.
A kind of anchor clamps of testing the thin-wall pipes high temperature tensile properties is characterized in that its structural group becomes:
The basic configuration of anchor clamps bottom plate-this bottom plate is a stepped cylinder, wherein the thin portion of cylinder has a pin-and-hole to connect with pin with tensile test device by the end, the thick portion of cylinder for cutting vertical and crossing the remaining cylinder of part in axle center, at the anchor clamps axis of symmetry is the circular shaft heart, in cylinder wick face tangent plane, have one with match the substantially cylindrical so groove of the heart of test tube outer diameter; On the external cylinder of groove, be provided with bolt hole;
Anchor clamps auxiliary splint-this auxiliary splint is to be shaped as the thick portion of bottom plate cylinder to cut vertical and to cross the partial shape in axle center identical, and opens the cylindrical so groove identical with the shape of bottom plate symmetry; On the external cylinder of groove, be provided with and the bottom plate bolt hole bolt hole of perforation mutually;
Anchor clamps fastening bolt-this bolt passes bottom plate and auxiliary splint, by nut is fastening it is linked up.
The utility model can not influence under the anchor clamps result of use, has realized the miniaturization of size of anchor clamps, makes anchor clamps energy and sample put into the high temperature furnace heating simultaneously, has so just reduced the thermograde on the specimen length direction, makes trial value more near actual value.The surface of contact of anchor clamps and sample holder part is an arc surface, thereby the stress that has reduced the sample holder part is concentrated, and during high temperature tension test, sample just can not break in retained part.And during high temperature tension test, tubing tensile strength is lower, and it is less to add the thin-wall pipes cross-sectional area, and then Fracture Force is also corresponding less, so, only depend on the friction force between anchor clamps and sample, just can guarantee that skidding does not appear in sample.The utility model is when the thin-wall pipes high temperature tension test, well having solved sample skids and breaks in the phenomenon of root, and anchor clamps and sample can be put into the heating furnace heating simultaneously, have reduced the thermograde on the specimen length direction, make test findings more accurate, reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an anchor clamps bottom plate structural representation of the present utility model.
Fig. 3 is an anchor clamps auxiliary splint structural representation of the present utility model.
Embodiment
The utility model is further described as follows below in conjunction with accompanying drawing.
A kind of anchor clamps of testing the thin-wall pipes high temperature tensile properties, the structural group that it is characterized in that it becomes: the basic configuration of anchor clamps bottom plate 3-this bottom plate is a stepped cylinder, wherein the thin portion of cylinder has a pin-and-hole 9 to connect with tensile test device 1 usefulness pin 2 by the end, the thick portion of cylinder for cutting vertical and crossing the remaining cylinder of part in axle center, at the anchor clamps axis of symmetry is the circular shaft heart, in cylinder wick face tangent plane, have one with match the substantially cylindrical so groove 4 of the heart of test tube outer diameter; On the external cylinder of groove, be provided with bolt hole 8; Anchor clamps auxiliary splint 5-this auxiliary splint is to be shaped as the thick portion of bottom plate cylinder to cut vertical and to cross the partial shape in axle center identical, and opens the cylindrical so groove 4 identical with the shape of bottom plate symmetry; On the external cylinder of groove, be provided with and the bottom plate bolt hole bolt hole of perforation mutually; Anchor clamps fastening bolt 6-this bolt passes bottom plate and auxiliary splint, by nut is fastening it is linked up.
The aperture in the dress sample hole of cylindrical so groove of the present utility model is identical with the external diameter of tested tubing, just cuts part at the center along continuous straight runs, and anchor clamps are divided into two in a cover.When carrying out the thin-walled high temperature tension test, tubular product sample 7 two ends are after loading onto pin on the pin-and-hole, the sample head is packed in the sample hole, make sample head top go up the rear wall in dress sample hole, in bolt hole, load onto bolt, bottom plate and secondary precious plate are fixed tightly in together, by pin-and-hole, with pin anchor clamps and testing machine are coupled together, then anchor clamps and sample are put into heating furnace, after treating that sample reaches the temperature of setting, just can carry out high temperature tension test.
Claims (1)
1. anchor clamps of testing the thin-wall pipes high temperature tensile properties is characterized in that its structural group becomes:
The basic configuration of anchor clamps bottom plate-this bottom plate is a stepped cylinder, wherein the thin portion of cylinder has a pin-and-hole to connect with pin with tensile test device by the end, the thick portion of cylinder for cutting vertical and crossing the remaining cylinder of part in axle center, at the anchor clamps axis of symmetry is the circular shaft heart, in cylinder wick face tangent plane, have one with match the substantially cylindrical so groove of the heart of test tube outer diameter; On the external cylinder of groove, be provided with bolt hole;
Anchor clamps auxiliary splint-this auxiliary splint is to be shaped as the thick portion of bottom plate cylinder to cut vertical and to cross the partial shape in axle center identical, and opens the cylindrical so groove identical with the shape of bottom plate symmetry; On the external cylinder of groove, be provided with and the bottom plate bolt hole bolt hole of perforation mutually;
Anchor clamps fastening bolt-this bolt passes bottom plate and auxiliary splint, by nut is fastening it is linked up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055165 CN2767993Y (en) | 2004-12-28 | 2004-12-28 | Clamp for testing high temperature tensile property of thin-walled pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055165 CN2767993Y (en) | 2004-12-28 | 2004-12-28 | Clamp for testing high temperature tensile property of thin-walled pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2767993Y true CN2767993Y (en) | 2006-03-29 |
Family
ID=36681861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420055165 Expired - Fee Related CN2767993Y (en) | 2004-12-28 | 2004-12-28 | Clamp for testing high temperature tensile property of thin-walled pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2767993Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528890A (en) * | 2013-11-08 | 2014-01-22 | 清华大学苏州汽车研究院（相城） | Stretching and unloading testing device |
| CN104237011A (en) * | 2014-09-05 | 2014-12-24 | 天津大学 | Novel pipe girth weld test sample creep testing device |
| CN104655482A (en) * | 2015-01-20 | 2015-05-27 | 华能国际电力股份有限公司 | Plate-shaped tensile sample and clamp connecting structure for testing high-temperature tensile property of metal material |
| CN106483025A (en) * | 2016-11-18 | 2017-03-08 | 中国科学院金属研究所 | The slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water and using method |
| CN107543762A (en) * | 2017-07-10 | 2018-01-05 | 国网浙江省电力公司丽水供电公司 | A kind of fatigue experimental device and method for applying evenly load |
| CN111289392A (en) * | 2020-03-06 | 2020-06-16 | 钢研纳克成都检测认证有限公司 | Metal thin-wall pipe fatigue test device and method based on local polishing |
| CN112798432A (en) * | 2020-12-30 | 2021-05-14 | 中航试金石检测科技(大厂)有限公司 | Thin-wall pipe full-pipe test tool clamp and high-temperature creep endurance test equipment |
-
2004
- 2004-12-28 CN CN 200420055165 patent/CN2767993Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528890A (en) * | 2013-11-08 | 2014-01-22 | 清华大学苏州汽车研究院（相城） | Stretching and unloading testing device |
| CN104237011A (en) * | 2014-09-05 | 2014-12-24 | 天津大学 | Novel pipe girth weld test sample creep testing device |
| CN104655482A (en) * | 2015-01-20 | 2015-05-27 | 华能国际电力股份有限公司 | Plate-shaped tensile sample and clamp connecting structure for testing high-temperature tensile property of metal material |
| CN106483025A (en) * | 2016-11-18 | 2017-03-08 | 中国科学院金属研究所 | The slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water and using method |
| CN107543762A (en) * | 2017-07-10 | 2018-01-05 | 国网浙江省电力公司丽水供电公司 | A kind of fatigue experimental device and method for applying evenly load |
| CN111289392A (en) * | 2020-03-06 | 2020-06-16 | 钢研纳克成都检测认证有限公司 | Metal thin-wall pipe fatigue test device and method based on local polishing |
| CN112798432A (en) * | 2020-12-30 | 2021-05-14 | 中航试金石检测科技(大厂)有限公司 | Thin-wall pipe full-pipe test tool clamp and high-temperature creep endurance test equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060329 Termination date: 20101228 |