CN104406856A - Outdoor constant load test apparatus - Google Patents
Outdoor constant load test apparatus Download PDFInfo
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- CN104406856A CN104406856A CN201410591873.4A CN201410591873A CN104406856A CN 104406856 A CN104406856 A CN 104406856A CN 201410591873 A CN201410591873 A CN 201410591873A CN 104406856 A CN104406856 A CN 104406856A
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- column
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- oblique arm
- load bar
- load test
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
An outdoor constant load test apparatus is characterized in that the outdoor constant load test apparatus comprises a column, an oblique arm and a loading rod, the loading rod is horizontally arranged at one side of the upper end of the column through the oblique arm, the lower end of the oblique arm is connected with the middle portion of the column, the upper end of the oblique arm is welded and fixed to the lower surface of the inner end of the loading rod, a sample is horizontally arranged between the inner end of the loading rod and the column, and the lower portion of the outer end of the loading rod is connected with a hook for hanging counterweights. The outdoor constant load test apparatus has the characteristics of simple structure, production convenience, low processing cost, generation of high pulling force of 1500kg without power supply, wide application in routine stress corrosion tests, outdoor work meeting, easy realization, low production device cost, and wide engineering application range.
Description
Technical field
The invention belongs to testing equipment technical field, relate to a kind of stress corrosion (cracking) test equipment, specifically a kind of outdoor constant load test unit.
Background technology
Stress corrosion is that quite valued heavy corrosion destroys problem in recent decades, concerning more outstanding Materials with High Strength.Materials with High Strength and the common main corrosion form of component thereof have eight kinds of Corrosion Types such as stress corrosion crack, erosion fatigue cracking, pitch corrosion, in use especially dangerous with stress corrosion crack (SCC).Such corrosion failure does not generally have obvious omen, and Materials with High Strength component is often unexpected fracture, causes the catastrophic failures such as fatal crass, greatly have impact on reliability and the economy of commercial unit use.
Materials with High Strength and the common main corrosion failure mode of component thereof are SCC.A large amount of man power and materials has been dropped in home and abroad in stress corrosion, achieves many achievements in research.In SCC research, only anodic solution type promotes local deformation and causes the new theory of stress corrosion, the dislocation emission just having Jones, Kanfman, Magnin theory and Chu Wuyang to teach and value-added theory etc., but the proposition of these theories is all based on experiment antificielle corrosive medium experimental result.And outdoor study of stress corrosion testing report seldom, have no systematic research.
Laboratory internal corrosion fatigue study equipment generally adopts universal testing machine, as: MTS universal testing machine; Also the mode adopting creep material testing machine to add corrosion case is had.These research equipments are all manually add corrosive medium, there is greatest differences with the environment for use of reality, and acquired results and actual conditions differ greatly, and generally can not meet the needs of people's pre-preventing engineering upper stress corrosion cracking.
Summary of the invention
Technical matters to be solved by this invention be provide for the above-mentioned state of the art a kind of structure simple, make invention outdoor constant load test unit easily, have and can meet that outwork, cost of manufacture are low, the feature of applied range.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of outdoor constant load test unit, it is characterized in that: described outdoor constant load test unit comprises a column, an oblique arm and a load bar, load bar is arranged on the side, upper end of column by oblique arm support level, the lower end of oblique arm is connected with the middle part of column, the upper end of oblique arm and the inner end lower surface of load bar are welded and fixed, by standard tensile specimen level connection joint between the inner end of load bar and column, below the outer end of load bar, be connected with the hook for hanging counterweight.
As improvement, described oblique arm adopts the steel plate system of cutting of 9 ~ 11 millimeters thick to form, the lower end of oblique arm is connected with the middle part of column by bolt, the upper surface of oblique arm is connected and fixed by the mode of welding with the inner end lower surface of load bar, welding starting point, from the bolt hole center lower end that sample is connected with load bar, ensures that the length ratio of the effect length that load bar has and standard tensile specimen is 8 ~ 10 ︰ 1.
As improvement, described column adopts 60 angle steel of 1100 ~ 1300 millimeters; Load bar adopts the steel pipe of 1000 ~ 1200 millimeters long, diameter 50 ~ 70 millimeters.
As improvement, described hook adopts the steel bar of diameter 11 ~ 13mm to bend and forms, and near the outer end being hung on load bar, to ensure the effective length of load bar, sample employing length is the standard tensile specimen of 90 ~ 110 millimeters.
Improve, described column is respectively equipped with the bolt hole be connected with oblique arm and sample, the spacing of two bolts hole is 90 ~ 110 millimeters.
Improve, described counterweight is multiple again, and the precision of counterweight is 0.9% ~ 1.1%, and counterweight adopts concrete material, the etch-proof ceramic coat of external sheath or form through plastic-blasting process, or adopts 190 ~ 210mm steel column to form by different length cutting.
Further improvement, described counterweight is 10, is respectively 10 kilograms, 20 kilograms, 30 kilograms, 40 kilograms, 50 kilograms, 60 kilograms, 70 kilograms, 80 kilograms, 90 kilograms, double centner.
Compared with prior art, the invention has the advantages that: structure is simple, easy to make, and processing cost is lower, without the need to electric power supply, just can produce the pulling force of maximum 1500 kilograms.Can be widely used in conventional stress corrosion (cracking) test, have and meet outwork, be easy to realize, the equipment cost of making is low, the feature that engineer applied scope is wide.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figure 1, the outdoor constant load test unit of the present embodiment, comprise column 1, oblique arm 2 and a load bar 3, sample 4 and a counterweight 6,60 angle steel of 1200 millimeters selected by column 1, load bar 3 selects the steel pipe of 1100 millimeters long, diameter 60 millimeters, oblique arm 2 selects the steel plate of 10 millimeters thick to cut system, load bar 3 is arranged on the side, upper end of column 1 by oblique arm 2 support level, the lower end of oblique arm 2 is connected by the middle part of bolt with column 1, and the upper surface of oblique arm 2 is connected and fixed by the mode of welding with the inner end lower surface of load bar 3, sample 4 is the standard tensile specimen of length 100 millimeters, sample 4 is horizontally set between the inner end of load bar 3 and column 1, the two ends of sample are respectively by bolted mode and load bar 3, column 1 is connected, column 1 is respectively equipped with the bolt hole be connected with oblique arm 2 and sample 4, the spacing of two bolts hole is 100 millimeters, near the outer end of load bar 3, below is connected with the hook 5 for hanging counterweight 6, hook 5 adopts the steel bar of diameter 12mm to bend and forms, counterweight 6 is 10, precision 1%, be respectively 10 kilograms, 20 kilograms, 30 kilograms, 40 kilograms, 50 kilograms, 60 kilograms, 70 kilograms, 80 kilograms, 90 kilograms, double centner, counterweight 6 is cut by different length by 200 millimeters of steel columns.
For long-term requirement of placing in the environment, counterweight 6 adopts Anticorrosion measure, and counterweight 6 also can adopt concrete material, external sheath ceramic coat or through plastic-blasting process, can ensure counterweight precision.
During making, oblique arm 2 and load bar 3 weld together; Column 1 is bolted with oblique arm 2 and sample 4; Hook 5 is hung on load bar 3, and counterweight 6 hangs on hook 5.The gravity of oblique arm 2, load bar 3, counterweight 6, by lever amplification, defines the pulling force to sample 4.
During use, according to counterweight 6 quantity of placing, can adjust the size applying pulling force, weight range is 20kg-1500kg, as by increase and decrease counterweight weight, still can not meet the demands, then adjustable sample 4 cross sectional dimensions.
The outdoor constant load test unit of the present embodiment, without the need to electric power supply, can produce the pulling force of maximum 1500 kilograms, conventional stress corrosion (cracking) test can be widely used in, have and meet outwork, be easy to realize, the equipment cost made is low, the feature that engineer applied scope is wide.
Claims (7)
1. an outdoor constant load test unit, it is characterized in that: described outdoor constant load test unit comprises a column, an oblique arm and a load bar, load bar is arranged on the side, upper end of column by oblique arm support level, the lower end of oblique arm is connected with the middle part of column, the upper end of oblique arm and the inner end lower surface of load bar are welded and fixed, by standard tensile specimen level connection joint between the inner end of load bar and column, below the outer end of load bar, be connected with the hook for hanging counterweight.
2. outdoor constant load test unit according to claim 1, it is characterized in that: described oblique arm adopts the steel plate system of cutting of 9 ~ 11 millimeters thick to form, the lower end of oblique arm is connected with the middle part of column by bolt, the upper surface of oblique arm is connected and fixed by the mode of welding with the inner end lower surface of load bar, welding starting point, from the bolt hole center lower end that sample is connected with load bar, ensures that the length ratio of the effect length that load bar has and standard tensile specimen is 8 ~ 10 ︰ 1.
3. outdoor constant load test unit according to claim 1, is characterized in that: described column adopts 60 angle steel of 1100 ~ 1300 millimeters; Load bar adopts the steel pipe of 1000 ~ 1200 millimeters long, diameter 50 ~ 70 millimeters.
4. outdoor constant load test unit according to claim 1, it is characterized in that: described hook adopts the steel bar of diameter 11 ~ 13mm to bend and forms, near the outer end being hung on load bar, to ensure the effective length of load bar, sample employing length is the standard tensile specimen of 90 ~ 110 millimeters.
5. outdoor constant load test unit according to claim 1, is characterized in that: described column is respectively equipped with the bolt hole be connected with oblique arm and sample, the spacing of two bolts hole is 90 ~ 110 millimeters.
6. the outdoor constant load test unit according to the arbitrary claim of claim 1 to 5, it is characterized in that: described counterweight is multiple, the precision of counterweight is 0.9% ~ 1.1%, counterweight adopts concrete material, the etch-proof ceramic coat of external sheath or form through plastic-blasting process, or adopt 190 ~ 210mm steel column to form by different length cutting.
7. outdoor constant load test unit according to claim 6, is characterized in that: described counterweight is 10, is respectively 10 kilograms, 20 kilograms, 30 kilograms, 40 kilograms, 50 kilograms, 60 kilograms, 70 kilograms, 80 kilograms, 90 kilograms, double centner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410591873.4A CN104406856A (en) | 2014-10-29 | 2014-10-29 | Outdoor constant load test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410591873.4A CN104406856A (en) | 2014-10-29 | 2014-10-29 | Outdoor constant load test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104406856A true CN104406856A (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410591873.4A Pending CN104406856A (en) | 2014-10-29 | 2014-10-29 | Outdoor constant load test apparatus |
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| CN (1) | CN104406856A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424526A (en) * | 2015-12-29 | 2016-03-23 | 中国兵器科学研究院宁波分院 | Corrosion fatigue environment test device |
| CN108051310A (en) * | 2017-12-05 | 2018-05-18 | 中国兵器工业第五九研究所 | A kind of composite material constant stress exposure test device |
-
2014
- 2014-10-29 CN CN201410591873.4A patent/CN104406856A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424526A (en) * | 2015-12-29 | 2016-03-23 | 中国兵器科学研究院宁波分院 | Corrosion fatigue environment test device |
| CN108051310A (en) * | 2017-12-05 | 2018-05-18 | 中国兵器工业第五九研究所 | A kind of composite material constant stress exposure test device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |
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| RJ01 | Rejection of invention patent application after publication |