CN102565115A - Fixture for high-temperature alloy durability test and anti-oxidation bonding method - Google Patents
Fixture for high-temperature alloy durability test and anti-oxidation bonding method Download PDFInfo
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- CN102565115A CN102565115A CN2011103471489A CN201110347148A CN102565115A CN 102565115 A CN102565115 A CN 102565115A CN 2011103471489 A CN2011103471489 A CN 2011103471489A CN 201110347148 A CN201110347148 A CN 201110347148A CN 102565115 A CN102565115 A CN 102565115A
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- anchor clamps
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Abstract
The invention discloses a fixture for a high-temperature alloy durability test and an anti-oxidation bonding method. The fixture comprises a chuck, clamping rings and an intermediate joint. An internal thread is formed at one end of the chuck, and a clamping rod is arranged at the other end of the chuck. Each clamping ring is formed by combining two semicircular sleeves, and a clamping plate is arranged at one end of the clamping ring. The clamping rod of the chuck is arranged in a connecting hole in a connecting rod of a durability tester, the two semicircular sleeves forming each clamping ring are sleeved on the clamping rod of the chuck to form the circular clamping ring, and the clamping plate at one end of the clamping ring clamps the fixture on the connecting rod of the durability tester, so that a test specimen is connected with the durability tester. A heat resisting anti-occlusion agent is sprayed to the thread of the fixture, and anti-oxidation treatment is performed on the fixture and the test specimen through a glass lubricant. According to the fixture and the method, in a high-temperature durability test of 1,000 DEG C, the test specimen and the fixture are prevented from being oxidized and bonded at high temperature, and are easily separated, so that the fixture and the test specimen are convenient to disassemble and can be repeatedly used, damage to the fixture and the specimen are reduced, and cost is decreased.
Description
Technical field
The present invention relates to the clamping and the protection of 1000 ℃ of metal duration runnings, promptly be used for 1000 ℃ of metal duration runnings, the clamping of sample and prevent sample and the oxidation of anchor clamps bonding.
Background technology
In carrying out 1000 ℃ of stress-rupture testers, should prevent that sample and anchor clamps high-temperature oxydation are bonding, also want and can easily anchor clamps be separated with examination.
The anti-oxidation adhesive technology of existing metal mainly concentrates on the essence of improving metal, by the protection metal and corrosive medium separates, metal is carried out surface treatment, improves modes such as external environment and electrochemical protection, promote the anti-oxidant cementability of metal.And in 1000 ℃ metal duration running; The testing requirements test button is the metal virgin state; Thereby guarantee that test findings embodies the actual performance of metal material; Can not change metallic state through prior art and realize anti-oxidation bondingly,, form protective seam so can only carry out the surface treatment of nonmetallic coating to the test button junction.And the still incompetent means of defence and the Protecting clamping apparatus that can also use repeatedly in 800 hours of under 1000 ℃ of conditions, continuing in the prior art.
The anchor clamps that adopt in the stress-rupture tester at present are the STRTHD connected mode, and an end of these anchor clamps is an internal thread, and the other end is an external thread, through internal thread these anchor clamps is connected with sample, through external thread, with clamps on endurance testing machine.Because test temperature is up to 1040 ℃, when dismounting and installation sample, the screw thread anchor clamps are consuming time loaded down with trivial details, and the experimenter is at high temperature operated for a long time, and environment is more abominable.Simultaneously, the screw thread anchor clamps cause the damage of screw thread anchor clamps autoxidation after at high temperature using repeatedly; In process of the test, clamping effectively accurately also causes cost to increase; The high-temperature oxydation phenomenon is serious after the off-test, anchor clamps and sample can't normal separation etc. situation, had a strong impact on the efficient and the success ratio of stress-rupture tester; Increase a large amount of costs simultaneously, caused the waste of resource.
Summary of the invention
For overcoming the work under bad environment that exists in the prior art, length consuming time, and the serious deficiency of screw thread anchor clamps autoxidation damage, the present invention proposes a kind of anchor clamps and anti-oxidation adhesive method that is used for the high temperature alloy duration running.
The present invention includes chuck, clamp ring and intermediate head, described chuck one end is an internal thread, and the other end is the clamping bar of polished rod; Clamp ring is combined by two half circular sleeve; The external diameter of clamping bar is identical on the internal diameter of clamp ring and the chuck; The external diameter of clamp ring is identical with connecting hole internal diameter on being positioned at the endurance testing machine connecting link; End at said clamp ring has the radially chuck of protrusion.
The invention allows for a kind of anti-oxidation adhesive method of anchor clamps of above-mentioned high temperature alloy duration running, may further comprise the steps:
Step 5 is solidified the glass lubricant in chuck and the intermediate head; Chuck and the intermediate head that to pass through anti-oxidation processing place in the baking oven, and baking oven is heated to 80 ℃; Place after 30 minutes and take out, the glass lubricant that is sprayed in chuck and the intermediate head is solidified;
Step 6 is connected anchor clamps with endurance testing machine; The clamping bar of chuck is packed in the connecting hole on the endurance testing machine connecting link; Two half circular sleeve forming clamp ring are sleeved on the clamping bar of chuck; Make up conglobate clamp ring; And the chuck of the end through being positioned at clamp ring is stuck in anchor clamps on the connecting link of endurance testing machine, thereby realizes being connected sample and endurance testing machine; Position through endurance testing machine adjusting sample makes sample be positioned at the high temperature furnace of endurance testing machine, carries out duration running.
High temperature alloy of the present invention is meant and can under high temperature more than 600 ℃, bears big complex stress and high-alloying iron-based or Ni-based, cobalt-based austenitic metal material with surface stability.
The present invention is connected with the connecting link of endurance testing machine through chuck, and utilizes clamp ring that anchor clamps are stuck on the connecting link, thereby realizes the stress-rupture tester of sample.The present invention sprays resistant to elevated temperatures anti-bite mixture at anchor clamps screw thread place, and through glass lubricant anchor clamps and sample is carried out anti-oxidation processing.
Because the abovementioned technology that the present invention takes under 1040 ℃ hot environment, can be avoided the oxidation between anchor clamps bonding, and conveniently dismantle and install sample, reduce experimenter's running time at high temperature.Simultaneously, anchor clamps, intermediate head and semi-ring can effectively be avoided sample rocking in being held process through the wringing fit in the test, guarantee the right alignment of sample and anchor clamps, and the stretched vertically sample further improves test accuracy.The present invention uses the anti-bite mixture, can prevent bonding each other under the long term high temperature extended state of sample and anchor clamps.After the off-test, anchor clamps and sample are easily separated, and convenient disassembly can not cause the damage of anchor clamps and sample, has further protected anchor clamps, has improved the utilization rate of anchor clamps.Use glass lubricant, can effectively stop oxygen to get into, prevent the oxidation and the corrosion-deformation of anchor clamps and sample itself from the source, improved the efficient and the success ratio of stress-rupture tester, reduced cost simultaneously, reduced the wasting of resources.
Description of drawings
Fig. 1 is stress-rupture tester anchor clamps of the prior art.
Fig. 2 is that each parts connects synoptic diagram.Wherein:
1. chuck 2. intermediate heads 3. clamp rings 4. samples
Embodiment
Embodiment one
Present embodiment is a kind of anchor clamps that are used for 1000 ℃ of high temperature alloy duration runnings, and the sample 4 of test is two, and through joint serial connection between in the anchor clamps.The sample 4 of test adopts nickel base superalloy to process.
Present embodiment comprises two chucks 1, two clamp rings 3 and intermediate heads 2.Described chuck 1, clamp ring 3 and intermediate head 2 usefulness directional casting high temperature alloys are processed
Described chuck 1 one ends are internal thread, and the other end is the clamping bar of polished rod.Clamp ring 3 is combined by two half circular sleeve.The external diameter of clamping bar is identical on the internal diameter of clamp ring 3 and the chuck 1.The external diameter of clamp ring 3 is identical with connecting hole internal diameter on being positioned at the endurance testing machine connecting link.End at said clamp ring has the radially chuck of protrusion, makes the outer round surface of said clamp ring 3 stepped.
During use, an end of two samples 4 is screwed in respectively in the chuck 1, the other end of two samples 4 is screwed in respectively in the endoporus of intermediate head 2, two chucks 1, two samples 4 and intermediate head 2 are serially connected.The clamping bar of chuck is packed in the connecting hole on the endurance testing machine connecting link; Two half circular sleeve forming clamp ring 3 are sleeved on the clamping bar of chuck; Make up conglobate clamp ring 3; And the chuck of the end through being positioned at clamp ring is stuck in anchor clamps on the connecting link of endurance testing machine, thereby realizes being connected sample 4 and endurance testing machine.
Present embodiment has also proposed a kind of method of utilizing above-mentioned anchor clamps the K002 high-temperature alloy material to be carried out the detection of high temperature alloy enduring quality.Sample in the present embodiment is two.Its detailed process may further comprise the steps:
Step 5 is solidified the glass lubricant in chuck and the intermediate head.Chuck and the intermediate head that to pass through anti-oxidation processing place in the baking oven, and baking oven is heated to 80 ℃, place after 30 minutes and take out, and the glass lubricant that is sprayed in chuck and the intermediate head is solidified.
Step 6 is connected anchor clamps with endurance testing machine.The clamping bar of chuck is packed in the connecting hole on the endurance testing machine connecting link; Two half circular sleeve forming clamp ring 3 are sleeved on the clamping bar of chuck; Make up conglobate clamp ring 3; And the chuck of the end through being positioned at clamp ring is stuck in anchor clamps on the connecting link of endurance testing machine, thereby realizes being connected sample 4 and endurance testing machine.Position through endurance testing machine adjusting sample makes sample be positioned at the high temperature furnace of endurance testing machine, carries out duration running.
Embodiment two
Present embodiment is a kind of anchor clamps that are used for 1040 ℃ of metal duration runnings, and the sample 4 of test is one.The sample 4 of test adopts iron-base superalloy to process.
Present embodiment comprises two chucks 1 and two clamp rings 3.Described chuck 1 is processed with clamp ring 3 usefulness directional casting high temperature alloys.
Described chuck 1 one ends are internal thread, and the other end is the clamping bar of polished rod.Clamp ring 3 is combined by two half circular sleeve.The external diameter of clamping bar is identical on the internal diameter of clamp ring 3 and the chuck 1.The external diameter of clamp ring 3 is identical with connecting hole internal diameter on being positioned at the endurance testing machine connecting link.End at said clamp ring has the radially chuck of protrusion, makes the outer round surface of said clamp ring 3 stepped.
During use, the two ends of sample 4 are screwed in respectively in the internal thread of two chuck 1 one ends, two chucks 1 and sample 4 are serially connected.The clamping bar of chuck is packed in the connecting hole on the endurance testing machine connecting link; Two half circular sleeve forming clamp ring 3 are sleeved on the clamping bar of chuck; Make up conglobate clamp ring 3; And the chuck of the end through being positioned at clamp ring is stuck in anchor clamps on the connecting link of endurance testing machine, thereby realizes being connected sample 4 and endurance testing machine.
Present embodiment has also proposed a kind of method of utilizing above-mentioned anchor clamps the K002 high-temperature alloy material to be carried out the detection of high temperature alloy enduring quality.Sample in the present embodiment is an individual sample.Its detailed process may further comprise the steps:
Step 5 is solidified the glass lubricant on the chuck.The chuck that will pass through anti-oxidation processing places in the baking oven, and baking oven is heated to 80 ℃, places after 30 minutes and takes out, and the glass lubricant that is sprayed on the chuck is solidified.
Step 6 is connected anchor clamps with endurance testing machine.The clamping bar of chuck is packed in the connecting hole on the endurance testing machine connecting link; Two half circular sleeve forming clamp ring 3 are sleeved on the clamping bar of chuck; Make up conglobate clamp ring 3; And the chuck of the end through being positioned at clamp ring is stuck in anchor clamps on the connecting link of endurance testing machine, thereby realizes being connected sample 4 and endurance testing machine.Position through endurance testing machine adjusting sample makes sample be positioned at the high temperature furnace of endurance testing machine, carries out duration running.
Claims (2)
1. anchor clamps that are used for the high temperature alloy duration running is characterized in that, comprise chuck, clamp ring and intermediate head, and described chuck one end is an internal thread, and the other end is the clamping bar of polished rod; Clamp ring is combined by two half circular sleeve; The external diameter of clamping bar is identical on the internal diameter of clamp ring and the chuck; The external diameter of clamp ring is identical with connecting hole internal diameter on being positioned at the endurance testing machine connecting link; End at said clamp ring has the radially chuck of protrusion.
2. the anti-oxidation adhesive method of the said anchor clamps of claim 1 is characterized in that, may further comprise the steps:
Step 1 is to chuck and intermediate head or chuck spraying anti-bite mixture; Spray the anti-bite mixture respectively at the internal thread place of two chucks and/or the internal thread place of intermediate head, make the anti-bite mixture evenly cover thread surface; The chuck that sprayed the anti-bite mixture is vertically placed, and the thread end that makes chuck down, intermediate head is also vertically placed, and at room temperature keeps 10 minutes;
Step 2 applies the anti-bite mixture on sample; The threaded portion at sample two ends is immersed respectively in the anti-bite mixture, and respectively sample is rotated 360 ° respectively with counter clockwise direction in the direction of the clock;
Step 3 is installed sample; One end of two samples is screwed in respectively in the chuck, the other end of two samples is screwed in respectively in the endoporus of intermediate head, two chucks, two samples and intermediate head are serially connected, and with withdrawing from two buttons again after every place screwed;
Step 4 is carried out anti-oxidation processing to chuck and intermediate head; At the interface spraying glass lubricant of chuck and sample interface, intermediate head and sample, seal the interface of anchor clamps, intermediate head and sample through glass lubricant;
Step 5 is solidified the glass lubricant in chuck and the intermediate head; Chuck and the intermediate head that to pass through anti-oxidation processing place in the baking oven, and baking oven is heated to 80 ℃; Place after 30 minutes and take out, the glass lubricant that is sprayed in chuck and the intermediate head is solidified;
Step 6 is connected anchor clamps with endurance testing machine; The clamping bar of chuck is packed in the connecting hole on the endurance testing machine connecting link; Two half circular sleeve forming clamp ring are sleeved on the clamping bar of chuck; Make up conglobate clamp ring; And the chuck of the end through being positioned at clamp ring is stuck in anchor clamps on the connecting link of endurance testing machine, thereby realizes being connected sample and endurance testing machine; Position through endurance testing machine adjusting sample makes sample be positioned at the high temperature furnace of endurance testing machine, carries out duration running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110347148.9A CN102565115B (en) | 2011-11-04 | 2011-11-04 | Fixture for high-temperature alloy durability test and anti-oxidation bonding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110347148.9A CN102565115B (en) | 2011-11-04 | 2011-11-04 | Fixture for high-temperature alloy durability test and anti-oxidation bonding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102565115A true CN102565115A (en) | 2012-07-11 |
| CN102565115B CN102565115B (en) | 2014-04-02 |
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| CN201110347148.9A Active CN102565115B (en) | 2011-11-04 | 2011-11-04 | Fixture for high-temperature alloy durability test and anti-oxidation bonding method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707203A (en) * | 2013-12-11 | 2014-04-09 | 河南省中原内配股份有限公司 | Work fixture for sand blasting and spraying of cylinder liners |
| CN104198279A (en) * | 2014-09-16 | 2014-12-10 | 永兴特种不锈钢股份有限公司 | Standard sample connector for stretching |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2750311Y (en) * | 2004-09-17 | 2006-01-04 | 沈阳黎明航空发动机(集团)有限责任公司 | Hanging type clamp for high temperature endurance test |
| CN201215537Y (en) * | 2008-07-01 | 2009-04-01 | 中国核动力研究设计院 | Special clamp for metal material tensile test after radiation |
| CN101706391A (en) * | 2009-12-11 | 2010-05-12 | 中国航空工业集团公司北京航空材料研究院 | Anti-adhesive shoulder fixture for improving efficiency of endurance test |
| CN201697836U (en) * | 2010-05-27 | 2011-01-05 | 浙江健力股份有限公司 | Auxiliary fixture for standard round bar sample tensile test |
-
2011
- 2011-11-04 CN CN201110347148.9A patent/CN102565115B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750311Y (en) * | 2004-09-17 | 2006-01-04 | 沈阳黎明航空发动机(集团)有限责任公司 | Hanging type clamp for high temperature endurance test |
| CN201215537Y (en) * | 2008-07-01 | 2009-04-01 | 中国核动力研究设计院 | Special clamp for metal material tensile test after radiation |
| CN101706391A (en) * | 2009-12-11 | 2010-05-12 | 中国航空工业集团公司北京航空材料研究院 | Anti-adhesive shoulder fixture for improving efficiency of endurance test |
| CN201697836U (en) * | 2010-05-27 | 2011-01-05 | 浙江健力股份有限公司 | Auxiliary fixture for standard round bar sample tensile test |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707203A (en) * | 2013-12-11 | 2014-04-09 | 河南省中原内配股份有限公司 | Work fixture for sand blasting and spraying of cylinder liners |
| CN103707203B (en) * | 2013-12-11 | 2016-08-17 | 中原内配集团股份有限公司 | Cylinder jacket sandblasting, spraying frock clamp |
| CN104198279A (en) * | 2014-09-16 | 2014-12-10 | 永兴特种不锈钢股份有限公司 | Standard sample connector for stretching |
| CN104198279B (en) * | 2014-09-16 | 2016-08-24 | 永兴特种不锈钢股份有限公司 | Standard specimen union joint is used in a kind of stretching |
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| Publication number | Publication date |
|---|---|
| CN102565115B (en) | 2014-04-02 |
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Address after: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao Patentee after: AECC AVIATION POWER CO,LTD. Address before: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao Patentee before: AVIC AVIATION ENGINE Corp.,PLC Address after: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao Patentee after: AVIC AVIATION ENGINE Corp.,PLC Address before: 710021 Xu Jia Bay, Xi'an, Shaanxi, Beijiao Patentee before: XI'AN AVIATION POWER Co.,Ltd. |