CN102706766A - Molybdenum laser thermal fatigue test device - Google Patents
Molybdenum laser thermal fatigue test device Download PDFInfo
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- CN102706766A CN102706766A CN2012101824870A CN201210182487A CN102706766A CN 102706766 A CN102706766 A CN 102706766A CN 2012101824870 A CN2012101824870 A CN 2012101824870A CN 201210182487 A CN201210182487 A CN 201210182487A CN 102706766 A CN102706766 A CN 102706766A
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- molybdenum
- laser
- fatigue test
- thermal fatigue
- vacuum plant
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to a molybdenum laser thermal fatigue test device which comprises a water inlet pipe (1), a molybdenum sample (2), quart glass (3) a laser (4), an infrared temperature measuring device (5), a vacuum device (6), a water outlet pipe (7) and a cooling water chamber (8), wherein the quart glass (3) is arranged on the upper surface of the vacuum device (6); the molybdenum sample (2) is arranged inside the vacuum device (6); the laser (4) is arranged at the upper part of the vacuum device (6); the infrared temperature measuring device (5) is arranged between the laser (4) and the vacuum device (6); the cooling water chamber (8) is arranged in a nearby area, where the molybdenum sample (2) is placed, of the vacuum device (6); and two ends of the cooling water chamber (8) are respectively connected with the water inlet pipe (1) and the water outlet pipe (7). The molybdenum laser thermal fatigue test device disclosed by the invention has the advantages of strong operability, less material consumption and the like; and according to the molybdenum laser thermal fatigue test device, the oxidation of molybdenum in the process of over-800 DEG C high-temperature thermal fatigue test can be effectively prevented.
Description
Technical field
The invention belongs to easy oxidation metal thermal fatigue test apparatus technical field, be specifically related to a kind of molybdenum LASER HEAT fatigue experimental device.
Background technology
Molybdenum has the fusing point height, intensity is big, hardness is high, wearing quality and heat-conductivity conducting property is good, expansion coefficient is little and good corrosion resisting property, is widely used in fields such as metallurgy, machinery, oil, chemical industry, national defence, Aero-Space, electronics, nuclear industry.But the high-temperature oxidation resistance of molybdenum is poor, and in air, being heated to about 300 ℃ of its surface coverage has the dark green oxide film of one deck, forms the bottle green oxide layer when being heated to 650 ℃.Oxide volatilization when being higher than 750 ℃, along with temperature raises, the rapid oxidation of molybdenum forms white smoke shape MoO
3
How suppressing molybdenum oxidation in surpassing 800 ℃ of high temperature thermal fatigue test process has down become the gordian technique of its hot strength assessment of restriction, and does not also have open source literature report molybdenum at present above the thermal fatigue test apparatus under 800 ℃ of high temperature.
Summary of the invention
Technical matters to be solved by this invention provides a kind of molybdenum LASER HEAT fatigue experimental device, can effectively suppress oxidation in the thermal fatigue test process of molybdenum under hot conditions.
Technical scheme of the present invention: a kind of molybdenum LASER HEAT fatigue experimental device; It comprises water inlet pipe 1, molybdenum sample 2, quartz glass 3, laser instrument 4, infrared thermometer 5, vacuum plant 6, rising pipe 7, cooling water cavity 8; The upper surface of vacuum plant 6 is provided with quartz glass 3; The set inside of vacuum plant 6 has molybdenum sample 2, and the top of vacuum plant 6 is provided with laser instrument 4, is provided with infrared thermometer 5 between laser instrument 4 and the vacuum plant 6; Be provided with cooling water cavity 8 in the near zone of vacuum plant 6 placement molybdenum samples 2, the two ends of cooling water cavity 8 connect respectively at water inlet pipe 1, rising pipe 7.
The present invention compared with prior art has following beneficial effect: the present invention is through the design vacuum plant, and employing laser is thermal source, has effectively simulated the heat fatigue of molybdenum, and in elevated temperature heat torture test process, has prevented the oxidation of molybdenum.That the present invention has is workable, consume advantages such as material is few, can effectively prevent the oxidation of molybdenum in the process of the elevated temperature heat torture test above 800 ℃.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Concrete embodiment
Below in conjunction with accompanying drawing the bright best case study on implementation of we is further described.
As shown in Figure 1, after the molybdenum vacuum laser device of design is evacuated, vacuum plant laser irradiation zone adopting quartz glass and high-temp glue sealing.The molybdenum sample is placed in the vacuum plant, adopts infrared thermometer monitoring molybdenum surface temperature, in process of the test, through water cooling molybdenum sample, adopts LASER HEATING molybdenum sample.
System work process: at first connect the water inlet pipe and the rising pipe of nonstandard design, place the molybdenum sample then in nonstandard vacuum plant, be evacuated nonstandard vacuum plant.Adjust laser position and infrared thermometer monitored area.Open chilled water, laser, infrared thermometer data monitoring software, heat fatigue Control Software.
Process of the test, cooling water cavity water flowing always cooling, at the molybdenum temperature-rise period, laser is opened always, when the molybdenum temperature is raised to design temperature, closes laser, and the cooling of molybdenum sample when temperature is cooled to design temperature, is opened laser once more.
Claims (1)
1. molybdenum LASER HEAT fatigue experimental device; It comprises water inlet pipe (1), molybdenum sample (2), quartz glass (3), laser instrument (4), infrared thermometer (5), vacuum plant (6), rising pipe (7), cooling water cavity (8); The upper surface that it is characterized in that vacuum plant (6) is provided with quartz glass (3); The set inside of vacuum plant (6) has molybdenum sample (2); The top of vacuum plant (6) is provided with laser instrument (4); Be provided with infrared thermometer (5) between laser instrument (4) and the vacuum plant (6), be provided with cooling water cavity (8) in the near zone of vacuum plant (6) placement molybdenum sample (2), the two ends of cooling water cavity (8) connect respectively at water inlet pipe (1), rising pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101824870A CN102706766A (en) | 2012-06-05 | 2012-06-05 | Molybdenum laser thermal fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101824870A CN102706766A (en) | 2012-06-05 | 2012-06-05 | Molybdenum laser thermal fatigue test device |
Publications (1)
| Publication Number | Publication Date |
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| CN102706766A true CN102706766A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012101824870A Pending CN102706766A (en) | 2012-06-05 | 2012-06-05 | Molybdenum laser thermal fatigue test device |
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| CN (1) | CN102706766A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644800A (en) * | 2016-12-05 | 2017-05-10 | 中国科学院力学研究所 | Thermal fatigue experimental device |
| CN110455659A (en) * | 2019-08-22 | 2019-11-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of high-temperature hardness gauge of laser heating method |
Citations (6)
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|---|---|---|---|---|
| US4346754A (en) * | 1980-04-30 | 1982-08-31 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Heating and cooling system |
| US5980103A (en) * | 1995-10-24 | 1999-11-09 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Apparatus and method for testing thermal fatigue resistance |
| CN2452023Y (en) * | 2000-11-29 | 2001-10-03 | 中国科学院武汉岩土力学研究所 | Digital real-time multi-direction observation recording analyzer during the whole process of crack propagation |
| JP2002340765A (en) * | 2001-05-14 | 2002-11-27 | Hitachi Ltd | Equipment for evaluating/testing thermal fatigue lifetime |
| CN1955713A (en) * | 2005-10-26 | 2007-05-02 | 中国科学院力学研究所 | Test device and method of laser induced piston heat fatigue |
| CN101839846A (en) * | 2010-05-07 | 2010-09-22 | 上海工程技术大学 | High-resolution high-temperature metallographic structure analyzer |
-
2012
- 2012-06-05 CN CN2012101824870A patent/CN102706766A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4346754A (en) * | 1980-04-30 | 1982-08-31 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Heating and cooling system |
| US5980103A (en) * | 1995-10-24 | 1999-11-09 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Apparatus and method for testing thermal fatigue resistance |
| CN2452023Y (en) * | 2000-11-29 | 2001-10-03 | 中国科学院武汉岩土力学研究所 | Digital real-time multi-direction observation recording analyzer during the whole process of crack propagation |
| JP2002340765A (en) * | 2001-05-14 | 2002-11-27 | Hitachi Ltd | Equipment for evaluating/testing thermal fatigue lifetime |
| CN1955713A (en) * | 2005-10-26 | 2007-05-02 | 中国科学院力学研究所 | Test device and method of laser induced piston heat fatigue |
| CN101839846A (en) * | 2010-05-07 | 2010-09-22 | 上海工程技术大学 | High-resolution high-temperature metallographic structure analyzer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644800A (en) * | 2016-12-05 | 2017-05-10 | 中国科学院力学研究所 | Thermal fatigue experimental device |
| CN106644800B (en) * | 2016-12-05 | 2019-02-12 | 中国科学院力学研究所 | A kind of thermal fatigue test device |
| CN110455659A (en) * | 2019-08-22 | 2019-11-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of high-temperature hardness gauge of laser heating method |
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Application publication date: 20121003 |