CN105423891B - A kind of detection method of blade surface aluminum silicon infiltration layer thickness - Google Patents
A kind of detection method of blade surface aluminum silicon infiltration layer thickness Download PDFInfo
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- CN105423891B CN105423891B CN201510824889.XA CN201510824889A CN105423891B CN 105423891 B CN105423891 B CN 105423891B CN 201510824889 A CN201510824889 A CN 201510824889A CN 105423891 B CN105423891 B CN 105423891B
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- infiltration layer
- test piece
- aluminum silicon
- layer thickness
- blade surface
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- 230000008595 infiltration Effects 0.000 title claims abstract description 70
- 238000001764 infiltration Methods 0.000 title claims abstract description 70
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 claims abstract description 58
- 239000000523 sample Substances 0.000 claims abstract description 28
- 230000005619 thermoelectricity Effects 0.000 claims abstract description 26
- 238000005275 alloying Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 238000007689 inspection Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 239000013068 control sample Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000004164 analytical calibration Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000009659 non-destructive testing Methods 0.000 description 3
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A kind of detection method of blade surface aluminum silicon infiltration layer thickness, the thermoelectricity detection device for carrying out alloying layer thickness measurement are made of cold end probe, hot end probe, temperature control device, electromotive force instruction device, balancing controls and power supply display device；When cool and heat ends probe is not in contact with part, thermoelectrical potential value should be " 0 ", if there is deviation, is adjusted using zeroing knob；Electromotive force instruction device can be measured that the thermoelectrical potential value on part, and be indicated；The size of thermoelectrical potential value reflects the thickness information of deep layer；Three pieces standard test piece is made, this three pieces test piece is for determining the qualified or not foundation of blade surface alloying layer thickness.Advantages of the present invention: may be implemented the nondestructive measurement to turbine blade surface aluminum silicon infiltration layer thickness, and the not performance and apparent size of damaged blade when detection, testing result is accurate, high-efficient, to guaranteeing that product quality and safety play a significant role.
Description
Technical field
The present invention relates to aviation part field of non destructive testing, in particular to a kind of inspection of blade surface aluminum silicon infiltration layer thickness
Survey method.
Background technique
Engine turbine blade working is in high temperature, hyperbaric environment, and the aluminum silicon infiltration layer on surface is by high-temperature high-pressure air flow
Erosion will be thinned or fall off, and influence the service performance of blade, should use suitable non-destructive testing side when engine overhaul thus
Method detects the thickness of aluminum silicon infiltration layer, finds underproof part in time, guarantees engine operation safety.Currently without inspection
Survey the lossless detection method of aluminum silicon infiltration layer thickness.
Summary of the invention
The purpose of the present invention is to solve the non-destructive testing problems of blade surface aluminum silicon infiltration layer thickness, have provided one kind
The detection method of blade surface aluminum silicon infiltration layer thickness.
The present invention provides a kind of detection methods of blade surface aluminum silicon infiltration layer thickness, it is characterised in that: the blade
The detection method of surface aluminum silicon infiltration layer thickness, the thermoelectricity detection device of progress alloying layer thickness measurement is popped one's head in by cold end, hot end is popped one's head in,
Temperature control device, electromotive force instruction device, balancing controls and power supply display device are constituted；After energization, the resistance in the probe of hot end is produced
Heat keeps the temperature of hot end probe at 340 DEG C by temperature control device；When cool and heat ends probe is not in contact with part, thermoelectrical potential value be should be
" 0 " is adjusted if there is deviation using zeroing knob；Hot end probe placement is detected position, parts locally temperature in part
It increases, thermoelectrical potential generation will be had by being detected position in part at this time, by cold end probe placement at another position of part, be visited with hot end
Head is connected by part, then electromotive force instruction device can be measured that the thermoelectrical potential value on part, and be indicated；Thermoelectricity
The size of gesture value reflects the thickness information of deep layer；
The aluminum silicon infiltration layer test piece of different-thickness is made of material identical with seized part, under the microscope precise measurement
Then the thickness value of infiltration layer is successively measured using thermoelectricity detection device, draw pair of thermoelectrical potential value and aluminum silicon infiltration layer thickness
Relation curve is answered, coordinate curve is established；It, can be by the thermoelectrical potential value of measurement directly from seat when measuring part aluminum silicon infiltration layer
The thickness of corresponding practical aluminum silicon infiltration layer is found on mark curve；
In addition three pieces standard test piece is made using material identical with seized part, test piece 1 is the naked face without infiltration layer, test piece
Preparation allows the aluminum silicon infiltration layer of minimum thickness on 2, and the maximum gauge aluminum silicon infiltration layer of permission is prepared in test piece 3；This three pieces test piece is used
In determining the qualified or not foundation of blade surface alloying layer thickness.
Embodiment using thermo-electric method detection blade surface aluminum silicon infiltration layer thickness is as follows:
1. preparing before examining: tested blade is removed the sundries such as carbon distribution, oxide skin, dust, lubricating oil and moisture；Guarantee thermoelectricity
The temperature of detection device, infiltration layer standard test piece and tested blade is consistent with ambient temperature；The standard test piece of adjusting instrument is wanted
Individually storage, guarantee damage aluminising silicon layer and guarantee blade cleaning；The thermode of contact should be inserted in instrument use process
In its socket, desktop is not contacted directly, and the temperature of thermode can reach 340 DEG C, avoid scalding；Power supply is opened, instrument is connected,
Instrument is preheated 10 minutes, when preheating, the hot end of thermoelectrometry apparatus should be inserted in its socket；
2. zero point adjusts: before detection, adjusting instrument zero knob, making electromotive force is that device shows data zero；
3. instrument calibration: thermoelectricity detection control sample should be three pieces standard test piece, and test piece one is without infiltration layer, and test piece two is with fair
Perhaps minimum thickness infiltration layer, test piece three is with the maximum gauge infiltration layer allowed；Thermoelectrometry apparatus hot end and cold end are individually placed to three pieces
The detected area of test piece observes and records the thermoelectrical potential value of thermoelectrometry apparatus dial plate, establishes linear relationship, closes as aluminum silicon infiltration layer thickness
Judgment basis whether lattice；
4. examining: in tested blade blade surface inspection, spacing 5mm, hot end probe and tested surface be as far as possible when inspection
Guarantee vertical, when thermoelectrical potential reading is more than or equal to the reading of test piece two, illustrates that the infiltration layer of blade surface is excessively thin or without infiltration layer, no
It is qualified；When thermoelectricity reading is less than the reading of test piece two and is greater than the reading of test piece three, illustrate infiltration layer in qualified area, it is qualified；
When thermoelectricity reading is less than the reading of test piece three, illustrate that alloying layer thickness is exceeded, part is unqualified；
Points for attention: continuous work checked the correctness debugged every 15~20 minutes, if data are drifted about,
The blade detected after this time debugging to last time debugging should reexamine；
5. record: after test ending, inspection result being recorded in dedicated minute book；
6. examining post-processing: closing instrument and power supply, keep instrument and control sample well.
Advantages of the present invention:
The detection method of blade surface aluminum silicon infiltration layer thickness of the present invention may be implemented to turbine blade surface aluminium silicon
The nondestructive measurement of alloying layer thickness, the not performance and apparent size of damaged blade when detection, testing result is accurate, high-efficient, to guarantor
Card product quality and safety play a significant role.
Detailed description of the invention
With reference to the accompanying drawing and embodiment the present invention is described in further detail:
Fig. 1 is thermoelectricity testing principle；
Fig. 2 is thermoelectricity detection device；
In figure, 1- zeroing knob, 2- power supply instruction, 3- cold end probe, 4- thermoelectrical potential value, 5- probe interface, the hot end 6- are visited
Head, 7- blade.
Specific embodiment
Embodiment 1
The present invention provides a kind of detection methods of blade surface aluminum silicon infiltration layer thickness, it is characterised in that: the blade
The detection method of surface aluminum silicon infiltration layer thickness, the thermoelectricity detection device of progress alloying layer thickness measurement is popped one's head in by cold end, hot end is popped one's head in,
Temperature control device, electromotive force instruction device, balancing controls and power supply display device are constituted；After energization, the resistance in the probe of hot end is produced
Heat keeps the temperature of hot end probe at 340 DEG C by temperature control device；When cool and heat ends probe is not in contact with part, thermoelectrical potential value be should be
" 0 " is adjusted if there is deviation using zeroing knob；Hot end probe placement is detected position, parts locally temperature in part
It increases, thermoelectrical potential generation will be had by being detected position in part at this time, by cold end probe placement at another position of part, be visited with hot end
Head is connected by part, then electromotive force instruction device can be measured that the thermoelectrical potential value on part, and be indicated；Thermoelectricity
The size of gesture value reflects the thickness information of deep layer；
The aluminum silicon infiltration layer test piece of different-thickness is made of material identical with seized part, under the microscope precise measurement
Then the thickness value of infiltration layer is successively measured using thermoelectricity detection device, draw pair of thermoelectrical potential value and aluminum silicon infiltration layer thickness
Relation curve is answered, coordinate curve is established；It, can be by the thermoelectrical potential value of measurement directly from seat when measuring part aluminum silicon infiltration layer
The thickness of corresponding practical aluminum silicon infiltration layer is found on mark curve；
In addition three pieces standard test piece is made using material identical with seized part, test piece 1 is the naked face without infiltration layer, test piece
Preparation allows the aluminum silicon infiltration layer of minimum thickness on 2, and the maximum gauge aluminum silicon infiltration layer of permission is prepared in test piece 3；This three pieces test piece is used
In determining the qualified or not foundation of blade surface alloying layer thickness.
Embodiment using thermo-electric method detection blade surface aluminum silicon infiltration layer thickness is as follows:
1. preparing before examining: tested blade is removed the sundries such as carbon distribution, oxide skin, dust, lubricating oil and moisture；Guarantee thermoelectricity
The temperature of detection device, infiltration layer standard test piece and tested blade is consistent with ambient temperature；The standard test piece of adjusting instrument is wanted
Individually storage, guarantee damage aluminising silicon layer and guarantee blade cleaning；The thermode of contact should be inserted in instrument use process
In its socket, desktop is not contacted directly, and the temperature of thermode can reach 340 DEG C, avoid scalding；Power supply is opened, instrument is connected,
Instrument is preheated 10 minutes, when preheating, the hot end of thermoelectrometry apparatus should be inserted in its socket；
2. zero point adjusts: before detection, adjusting instrument zero knob, making electromotive force is that device shows data zero；
3. instrument calibration: thermoelectricity detection control sample should be three pieces standard test piece, and test piece one is without infiltration layer, and test piece two is with fair
Perhaps minimum thickness infiltration layer, test piece three is with the maximum gauge infiltration layer allowed；Thermoelectrometry apparatus hot end and cold end are individually placed to three pieces
The detected area of test piece observes and records the thermoelectrical potential value of thermoelectrometry apparatus dial plate, establishes linear relationship, closes as aluminum silicon infiltration layer thickness
Judgment basis whether lattice；
4. examining: in tested blade blade surface inspection, spacing 5mm, hot end probe and tested surface be as far as possible when inspection
Guarantee vertical, when thermoelectrical potential reading is more than or equal to the reading of test piece two, illustrates that the infiltration layer of blade surface is excessively thin or without infiltration layer, no
It is qualified；When thermoelectricity reading is less than the reading of test piece two and is greater than the reading of test piece three, illustrate infiltration layer in qualified area, it is qualified；
When thermoelectricity reading is less than the reading of test piece three, illustrate that alloying layer thickness is exceeded, part is unqualified；
Points for attention: continuous work checked the correctness debugged every 15~20 minutes, if data are drifted about,
The blade detected after this time debugging to last time debugging should reexamine；
5. record: after test ending, inspection result being recorded in dedicated minute book；
6. examining post-processing: closing instrument and power supply, keep instrument and control sample well.
Claims (2)
1. a kind of detection method of blade surface aluminum silicon infiltration layer thickness, it is characterised in that: the blade surface aluminum silicon infiltration layer is thick
The detection method of degree carries out the thermoelectricity detection device of alloying layer thickness measurement by cold end probe, hot end probe, temperature control device, electronic
Gesture instruction device, balancing controls and power supply display device are constituted；After energization, the resistance in the probe of hot end generates heat, is filled by temperature control
It sets and keeps the temperature of hot end probe at 340 DEG C；When cool and heat ends probe is not in contact with part, thermoelectrical potential value should be " 0 ", if there is inclined
Difference is adjusted using zeroing knob；Hot end probe placement is detected position in part, parts locally temperature increases, exists at this time
Part, which is detected position, will thermoelectrical potential generation, by cold end probe placement at another position of part, pass through part with hot end probe
Conducting, then electromotive force instruction device can be measured that the thermoelectrical potential value on part, and be indicated；The size of thermoelectrical potential value
Reflect the thickness information of infiltration layer；
The aluminum silicon infiltration layer test piece of different-thickness is made of material identical with seized part, under the microscope precise measurement infiltration layer
Thickness value, then successively measured using thermoelectricity detection device, draw thermoelectrical potential value pass corresponding with aluminum silicon infiltration layer thickness
It is curve, establishes coordinate curve；It, can be by the thermoelectrical potential value of measurement directly from coordinate song when measuring part aluminum silicon infiltration layer
The thickness of corresponding practical aluminum silicon infiltration layer is found on line；
In addition three pieces standard test piece is made using material identical with seized part, test piece one is the naked face without infiltration layer, test piece two
Upper preparation allows the aluminum silicon infiltration layer of minimum thickness, and the maximum gauge aluminum silicon infiltration layer of permission is prepared in test piece three；The examination of this three pieces standard
Piece is for determining the qualified or not foundation of blade surface alloying layer thickness.
2. the detection method of blade surface aluminum silicon infiltration layer thickness described in accordance with the claim 1, it is characterised in that: use thermo-electric method
The embodiment for detecting blade surface aluminum silicon infiltration layer thickness is as follows:
1. preparing before examining: tested blade is removed these sundries of carbon distribution, oxide skin, dust, lubricating oil and moisture；Guarantee thermoelectricity inspection
The temperature for surveying device, infiltration layer standard test piece and tested blade is consistent with ambient temperature；The standard test piece of instrument calibration is single
Solely storage, guarantee damage aluminising silicon layer and guarantee blade cleaning；The thermode of contact should be inserted in it in instrument use process
In socket, desktop is not contacted directly, and the temperature of thermode can reach 340 DEG C, avoid scalding；Power supply is opened, instrument is connected, it will
Instrument preheats 10 minutes, and when preheating, the hot end probe of thermoelectricity detection device should be inserted in its socket；
2. zero point adjusts: before detection, adjusting instrument zero knob, electromotive force instruction device is made to show data zero；
3. instrument calibration: thermoelectricity detection control sample should be three pieces standard test piece, and test piece one is without infiltration layer, and test piece two is with permission
Minimum thickness infiltration layer, test piece three is with the maximum gauge infiltration layer allowed；By thermoelectricity detection device hot end probe and cold end probe point
It is not placed on the detected area of three pieces test piece, observes and records the thermoelectrical potential value of thermoelectricity detection device dial plate, establishes linear relationship, makees
For the qualified or not judgment basis of aluminum silicon infiltration layer thickness；
4. examining: in tested blade blade surface inspection, spacing 5mm, hot end is popped one's head in when inspection guarantees as far as possible with tested surface
Vertically, when thermoelectrical potential reading is more than or equal to the reading of test piece two, illustrate that the infiltration layer of blade surface is excessively thin or without infiltration layer, does not conform to
Lattice；When thermoelectricity reading is less than the reading of test piece two and is greater than the reading of test piece three, illustrate infiltration layer in qualified area, it is qualified；When
When thermoelectricity reading is less than the reading of test piece three, illustrate that alloying layer thickness is exceeded, part is unqualified；
Points for attention: continuous work checked the correctness of above-mentioned steps every 15~20 minutes, if data are drifted about,
The blade detected after this time debugging to last time debugging should reexamine；
5. record: after test ending, inspection result being recorded in dedicated minute book；
6. examining post-processing: closing instrument and power supply, keep instrument and control sample well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510824889.XA CN105423891B (en) | 2015-11-24 | 2015-11-24 | A kind of detection method of blade surface aluminum silicon infiltration layer thickness |
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| CN201510824889.XA CN105423891B (en) | 2015-11-24 | 2015-11-24 | A kind of detection method of blade surface aluminum silicon infiltration layer thickness |
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| CN105423891A CN105423891A (en) | 2016-03-23 |
| CN105423891B true CN105423891B (en) | 2019-02-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106596638B (en) * | 2016-11-18 | 2018-12-11 | 西安琦丰光电科技有限公司 | A kind of dissimilar metal surface infiltration layer non-destructive testing device and detection method |
| CN108106585B (en) * | 2017-12-21 | 2020-06-12 | 爱德森（厦门）电子有限公司 | Detection method for surface coating of metal substrate |
| CN111238358B (en) * | 2020-02-25 | 2021-06-04 | 山东大学 | Resistance value test-based cutter coating thickness measuring electrode, device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451817A (en) * | 2008-12-29 | 2009-06-10 | 国营红阳机械厂 | Non-metal coating thickness detecting method on metal base |
| CN102243116A (en) * | 2011-04-15 | 2011-11-16 | 南京航空航天大学 | Method and device for quickly detecting thermoelectric properties of polycrystalline diamond (PCD) blade |
| CN102494644A (en) * | 2011-11-14 | 2012-06-13 | 湖南省湘电锅炉压力容器检验中心有限公司 | Method for simply detecting thickness of silver coating of high-voltage isolating switch contact |
| CN103363930A (en) * | 2013-07-02 | 2013-10-23 | 首钢总公司 | Method for measuring thickness of galvanized layer on steel plate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8680745B2 (en) * | 2010-07-21 | 2014-03-25 | General Electric Company | Device for measuring material thickness |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451817A (en) * | 2008-12-29 | 2009-06-10 | 国营红阳机械厂 | Non-metal coating thickness detecting method on metal base |
| CN102243116A (en) * | 2011-04-15 | 2011-11-16 | 南京航空航天大学 | Method and device for quickly detecting thermoelectric properties of polycrystalline diamond (PCD) blade |
| CN102494644A (en) * | 2011-11-14 | 2012-06-13 | 湖南省湘电锅炉压力容器检验中心有限公司 | Method for simply detecting thickness of silver coating of high-voltage isolating switch contact |
| CN103363930A (en) * | 2013-07-02 | 2013-10-23 | 首钢总公司 | Method for measuring thickness of galvanized layer on steel plate |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |