CN205138886U - Down tensile sample card dress device of tensile experiment machine corrosive medium - Google Patents
Down tensile sample card dress device of tensile experiment machine corrosive medium Download PDFInfo
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- CN205138886U CN205138886U CN201520815702.5U CN201520815702U CN205138886U CN 205138886 U CN205138886 U CN 205138886U CN 201520815702 U CN201520815702 U CN 201520815702U CN 205138886 U CN205138886 U CN 205138886U
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Abstract
The utility model relates to a down tensile sample card dress device of tensile experiment machine corrosive medium, including last connecting rod, lower connecting rod, the tip clamps on two dops of omnipotent tensile test machine, and clamps the pole on the connecting rod coaxial coupling and clamps the pole down, and the card is established and is clamped the pole and clamp the corrosive medium cavity between the pole down last, embeds the drawing sample. Compared with the prior art, the utility model discloses can realize the corrosive medium tensile resistant delayed fracture experiment down of high -strength steel sheet metal. Its simple structure, with low costs, easy to operate has characteristics such as the experimental degree of accuracy is high, the repeatability is good. Can guarantee to go on under safety, accuracy, efficient state to the corrosive medium tensile test of high -strength steel sheet metal.
Description
Technical field
The utility model relates to a kind of fastening and loading device, and stretch under especially relating to a kind of tensile testing machine corrosive medium sample card assembling device.
Background technology
Many hardwares in engineering are all on active service and are run in certain environment.These environment, except the strong corrosive media such as various acid, alkali in chemical industry, petrochemical complex, also have seawater, river, high purity water, steam, marine atmosphere, industrial atmosphere, soil, high temperature, nuclear radiation etc.So in engineering design, only consider conventional mechanical property or fracturing mechanics index, or only consider the etching problem of corrosive medium, and do not consider the acting in conjunction of load and environment, the life problems of parts in engineering will inevitably be had influence on.Once material force part appearance point corrosion hole, Resisting fractre ability sharply declines, and causing with corrosion hole is that breach generation fracture leads to catastrophic failure.This fracture is because very unexpected, and harmfulness is very big.Tensile mechanical properties index under evaluating material corrosion environment, for engineering parts, is even more important.
With regard to ferrous materials, along with the raising of armor plate strength, occur that the possibility of delayed fracture also increases, how Efficient Evaluation is tested with the delayed fracture of test high-strength steel sheet becomes very necessary.So far, the most frequently used assessment method for Materials Fracture under corrosion environment has: the methods such as camber beam test method, U-shaped bend test method and slow strain rate test.Corrosive medium slow strain rate test is immersed in corrosive medium by sample, simultaneously with certain strain rate drawn samples.From stress-strain diagram, we can obtain the parameter such as rupture time, extensibility, maximum load of sample delayed fracture corrosive medium, thus evaluate the anti-delayed fracture performance of sample, this kind ofly evaluates effective ways that are high-strength or super-high strength steel delayed fracture trend.
In prior art, the experiment of this respect, mostly need special corrosion stress experimental facilities to test, instrumentation is complicated, and change sample and take time and effort, practicality is restricted, and not easily adjusts required process conditions flexibly.In addition, the stretching instrument under current most corrosive liquid condition is independent use mostly, and volume is comparatively large, complex structure, cost are higher, and utilization factor and the service efficiency of equipment are low.Under corrosive medium, the most effective mode of slow strain rate test is relied on exactly or is realized slow strain rate by universal tensile testing machine and loads, require that universal tensile testing machine can clamp thin plate sample, the gauge length section of sample also will be made in whole drawing process to be immersed in corrosive medium.And to most of common universal tensile testing machine, maximum problem is exactly how to carry out effective sample to clamp, common method is inapplicable new load mode.At present, in prior art, go back neither one very effectively to the method that clamps and the corresponding device of specification.
Utility model content
The purpose of this utility model be exactly provide to overcome defect that above-mentioned prior art exists a kind of novel, structure is simple, simple to operate, economy, safety, environmental protection, effectively for corrosive medium slow strain rate tension delayed fracture resistance test high strength thin plate sample fastening and loading device, be particularly useful for the tensile property test and assessment to high strength or superhigh intensity iron and steel and metal material.
The sample card that stretches under corrosive medium involved by the utility model installing is standby, main body is carried out coaxial cooperation with existing universal tensile testing machine be connected by a set of connecting link fastening and loading device that to be stretched by corrosive medium, can realize clamping high-strength steel thin plate sample and testing, ensure that sample makes the gauge length section of sample can be immersed in corrosive medium in whole drawing process by corrosive medium cavity, realize the test and evaluation under the slow strain rate of specimen material is loaded, realize especially by following technical scheme:
Stretch under a kind of tensile testing machine corrosive medium sample card assembling device, comprising:
Upper connecting rod, lower connecting rod: end is installed on two dops of universal tensile testing machine,
With connecting link be coaxially connected on clamp bar and under clamp bar,
Be fastened on clamp bar and under clamp corrosive medium cavity between bar, built-in drawn samples.
On clamp bar and under clamp bar and comprise
The body of rod,
Be opened in the body of rod near the tie rod holes connecting rod end, be connected by screw thread and connecting link,
The body of rod other end is sample clamping end, is provided with the draw-in groove and/or pin-and-hole that clamp drawn samples.
Described corrosive medium cavity is non-telescoping structure, under clamp bar and be fixedly connected with through O-ring seal with corrosive medium cavity, above clamp bar and corrosive medium cavity gapless is coaxially slidably connected.
Described corrosive medium cavity is Collapsible structure, above clamps bar and is fixedly connected with through O-ring seal with corrosive medium cavity.Preferably, corrosive medium cavity is multiple cavity nesting type structure or pleat line formula stretching structure.
Described corrosive medium cavity sections formula structure, each section, to be threaded, and increases and decreases number of fragments as required.
Described corrosive medium cavity is provided with import and the outlet of corrosive medium, and change, add and the amount of control corrosion rate medium, import is placed in top or the upper end, side of corrosive medium cavity, and outlet is placed in bottom or the lower end, side of corrosive medium cavity.Import and outlet fastening through valve, sealing-plug fixes or screwed tight mode is closed.
Corrosive medium cavity is processed by macromolecular material, elastic caoutchouc, organic glass or corrosion-resistant metallic material.
Compared with prior art, the utility model structure is simple, cost is low, easily operate, assembling or change sample and corrosive liquid simple, this fastening and loading device carries out the stretching experiment under corrosive medium under can being directly used in various cupping machine, and clamp can with testing machine precise match, there is right alignment high, the features such as not fragile, experimental accuracy is high, favorable reproducibility.Can ensure that the corrosive medium slow strain rate tension delayed fracture resistance test for high-strength steel thin plate is carried out under safety, accurate, efficient state.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of upper connecting rod;
Fig. 3 clamps the structural representation of bar on being;
Fig. 4 is the structural representation of corrosive medium cavity in embodiment 1;
Fig. 5 is the structural representation of corrosive medium cavity in embodiment 2;
Fig. 6 is the structural representation of corrosive medium cavity in embodiment 3;
Fig. 7 is the structural representation of corrosive medium cavity in embodiment 4.
In figure, under 1-upper connecting rod, 2-clamping bar, 3-corrosive medium cavity, 4-drawn samples, 5-import, 6-outlet, 7-, clamp bar, 8-lower connecting rod.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment 1
The utility model can clamp for tensile testing samples under the corrosive medium of high-strength steel thin plate.By a set of connecting link and a corrosive medium cavity, realize clamping high-strength steel thin plate sample and testing, stretch under tensile testing machine corrosive medium sample card assembling device structure as shown in Figure 1, comprise upper connecting rod 1, on clamp bar 2, corrosive medium cavity 3, under clamp bar 7, lower connecting rod 8.Wherein the end of upper connecting rod 1, lower connecting rod 7 is installed on two dops of universal tensile testing machine, above clamp bar 2 and under clamp bar 8 and be coaxially connected with upper connecting rod 1, lower connecting rod 7.The structure of upper connecting rod 1 as shown in Figure 2, is processed by Steel Bar, and cross section is circular.On clamp bar 2 and under to clamp the structure of bar 8 identical, on clamp the structure of bar 2 as shown in Figure 3, comprise the body of rod, be opened in the tie rod holes of the body of rod near upper connecting rod 1 end, be connected by screw thread and upper connecting rod 1, the body of rod other end is sample clamping end, is provided with the draw-in groove and/or pin-and-hole that clamp drawn samples.What offer in the present embodiment is draw-in groove.
Corrosive medium cavity 3 is formed by processing of high molecular material, and its Main Function is used for splendid attire corrosive medium, utilizes the hole of establishing bottom corrosive medium cavity 3, by upper connecting rod 1 and on clamp bar 2 corrosive medium cavity 3 blocked.In the present embodiment, corrosive medium cavity 3 is non-telescoping structure, its structure as shown in Figure 4, under clamp bar 7 and be fixedly connected with through O-ring seal with corrosive medium cavity 3, above clamp bar 2 and be coaxially slidably connected with corrosive medium cavity 3 gapless.Corrosive medium cavity 3 is provided with import 5 and the outlet 6 of corrosive medium, change, add and the amount of control corrosion rate medium, import 5 is placed in top or the upper end, side of corrosive medium cavity 3, bottom or lower end, side that outlet 6 is placed in corrosive medium cavity, can fastening through valve, sealing-plug fixes or screwed tight mode is closed.In the present embodiment, import 5 is placed in the upper end, side of corrosive medium cavity 3, and outlet 6 is placed in the lower end, side of corrosive medium cavity 3.
By upper connecting rod 1, on clamp bar 2 and under clamp bar 7, lower connecting rod 8 blocks corrosive medium cavity 3, and upper connecting rod 1, on clamp bar 2 and under clamp between bar 7, lower connecting rod 8 and can prevent corrosive medium seepage in corrosive medium cavity 3 by installing rubber blanket additional.Utilization clamps bar 2, under clamp bar 7 and be provided with sample draw-in groove and pin-and-hole to realize clamping of thin plate sample.Upper connecting rod 1, lower connecting rod 8 are installed on two dops of universal tensile testing machine respectively.Install corrosive medium additional at corrosive medium cavity 3, ensure that the gauge length section of sample is corroded medium submergence, starts universal tensile testing machine, starts corrosive medium slow strain rate test.Finally realize a kind of both economical, practical, safe and effective corrosive medium slow strain rate tension delayed fracture resistance test method for high-strength steel thin plate and clamp method.
Embodiment 2
Stretch under tensile testing machine corrosive medium sample card assembling device, its structure is roughly the same with embodiment 1, difference is, corrosive medium cavity 3 is segmentation structure, and each section, to be threaded, can size be carried out increasing and dismantling cavity per sample, as shown in Figure 5, in addition, can outward winding at any time each section, be convenient to dress sample and dismounting sample.
Embodiment 3
Stretch under tensile testing machine corrosive medium sample card assembling device, its structure is roughly the same with embodiment 1, difference is, corrosive medium cavity 3 is Multicarity nested type, as shown in Figure 6, this kind of corrosive medium cavity is Collapsible structure to its structure, above clamps bar 2 and is fixedly connected with through O-ring seal with corrosive medium cavity 3, during stretching, corrosive medium cavity 3 can according to stretching travel distance of stretch out and draw back.
Embodiment 4
Stretch under tensile testing machine corrosive medium sample card assembling device, its structure is roughly the same with embodiment 1, difference is, corrosive medium cavity 3 is pleat line telescopic structure, as shown in Figure 7, this kind of corrosive medium cavity is Collapsible structure to its structure, above clamps bar 2 and is fixedly connected with through O-ring seal with corrosive medium cavity 3, during stretching, corrosive medium cavity 3 can according to stretching travel distance of stretch out and draw back.
Claims (10)
1. stretch under tensile testing machine corrosive medium a sample card assembling device, and it is characterized in that, this device comprises:
Upper connecting rod, lower connecting rod: end is installed on two dops of universal tensile testing machine,
With connecting link be coaxially connected on clamp bar and under clamp bar,
Be fastened on clamp bar and under clamp corrosive medium cavity between bar, built-in drawn samples.
2. stretch under a kind of tensile testing machine corrosive medium according to claim 1 sample card assembling device, it is characterized in that, clamp on described bar and under clamp bar and comprise
The body of rod,
Be opened in the body of rod near the tie rod holes connecting rod end, be connected by screw thread and connecting link,
The body of rod other end is sample clamping end, is provided with the draw-in groove and/or pin-and-hole that clamp drawn samples.
3. stretch under a kind of tensile testing machine corrosive medium according to claim 1 sample card assembling device, it is characterized in that, described corrosive medium cavity is non-telescoping structure, under clamp bar and be fixedly connected with through O-ring seal with corrosive medium cavity, above clamp bar and corrosive medium cavity gapless is coaxially slidably connected.
4. stretch under a kind of tensile testing machine corrosive medium according to claim 1 sample card assembling device, and it is characterized in that, described corrosive medium cavity is Collapsible structure, above clamps bar and is fixedly connected with through O-ring seal with corrosive medium cavity.
5. stretch under a kind of tensile testing machine corrosive medium according to claim 4 sample card assembling device, and it is characterized in that, described corrosive medium cavity is multiple cavity nesting type structures.
6. stretch under a kind of tensile testing machine corrosive medium according to claim 4 sample card assembling device, and it is characterized in that, described corrosive medium cavity is pleat line formula stretching structure.
7. stretch under a kind of tensile testing machine corrosive medium according to claim 1 sample card assembling device, it is characterized in that, described corrosive medium cavity sections formula structure, and each section, to be threaded, and increases and decreases number of fragments as required.
8. stretch under a kind of tensile testing machine corrosive medium according to any one of claim 1-7 sample card assembling device, it is characterized in that, described corrosive medium cavity is provided with import and the outlet of corrosive medium.
9. stretch under a kind of tensile testing machine corrosive medium according to claim 8 sample card assembling device, and it is characterized in that, described import is placed in top or the upper end, side of corrosive medium cavity, and outlet is placed in bottom or the lower end, side of corrosive medium cavity.
10. stretch under a kind of tensile testing machine corrosive medium according to claim 8 sample card assembling device, it is characterized in that, described import and outlet fastening through valve, sealing-plug fixes or screwed tight mode is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520815702.5U CN205138886U (en) | 2015-10-20 | 2015-10-20 | Down tensile sample card dress device of tensile experiment machine corrosive medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520815702.5U CN205138886U (en) | 2015-10-20 | 2015-10-20 | Down tensile sample card dress device of tensile experiment machine corrosive medium |
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| CN205138886U true CN205138886U (en) | 2016-04-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692895A (en) * | 2018-04-16 | 2018-10-23 | 东台市岳东橡胶密封件厂 | A kind of angular adjustment type O shape rubber seal device for detecting performance |
| CN108844724A (en) * | 2018-04-16 | 2018-11-20 | 东台市岳东橡胶密封件厂 | A kind of multi-functional O shape rubber seal device for detecting performance |
| CN114002064A (en) * | 2021-11-02 | 2022-02-01 | 重庆邮电大学 | Multi-medium-based biaxial stretching instrument capable of adopting and disassembling clamp |
-
2015
- 2015-10-20 CN CN201520815702.5U patent/CN205138886U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692895A (en) * | 2018-04-16 | 2018-10-23 | 东台市岳东橡胶密封件厂 | A kind of angular adjustment type O shape rubber seal device for detecting performance |
| CN108844724A (en) * | 2018-04-16 | 2018-11-20 | 东台市岳东橡胶密封件厂 | A kind of multi-functional O shape rubber seal device for detecting performance |
| CN108692895B (en) * | 2018-04-16 | 2020-05-26 | 东台市岳东橡胶密封件厂 | Angle modulation type O shape rubber seal performance detection device |
| CN108844724B (en) * | 2018-04-16 | 2020-05-26 | 东台市岳东橡胶密封件厂 | Multifunctional O-shaped rubber sealing ring performance detection device |
| CN114002064A (en) * | 2021-11-02 | 2022-02-01 | 重庆邮电大学 | Multi-medium-based biaxial stretching instrument capable of adopting and disassembling clamp |
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