CN201897590U - Reference block used for ultrasonic test of thermal-insulation layer products - Google Patents
Reference block used for ultrasonic test of thermal-insulation layer products Download PDFInfo
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- CN201897590U CN201897590U CN2010201886869U CN201020188686U CN201897590U CN 201897590 U CN201897590 U CN 201897590U CN 2010201886869 U CN2010201886869 U CN 2010201886869U CN 201020188686 U CN201020188686 U CN 201020188686U CN 201897590 U CN201897590 U CN 201897590U
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Abstract
The utility model discloses a reference block used for an ultrasonic test of thermal-insulation layer products, which comprises a first reference block, a second reference block and a third reference block, wherein the first reference block is a cylinder made of anti-aging materials, and the second reference block is a variable cross-section cone tube body and comprises an inner compound material layer and an outer compound material layer. A plurality of manual defect objects are embedded in areas outside the mutation area of the thickness of the inner compound material layer and the outer compound material layer, and comprise imporous prepreg cloth, porous prepreg cloth and a resin film reference block which are made of compound materials of which the positions are identical to the embedded positions; the third reference block comprises two arc-shaped blocks, wherein one arc-shaped block is provided with an equivalent cylinder flat-bottom hole from the inner compound material layer, and the other arc-shaped block is provided with another equivalent cylinder flat-bottom hole from the outer compound material layer. The above references blocks are used for debugging and checking a testing system, so as to ensure not only the sensitivity of the testing but also the inner quality of the thermal-insulation layer products.
Description
Technical field
The utility model relates to technical field of nondestructive testing, refers to a kind of reference block that is used for heat insulation layer goods Ultrasonic Detection particularly.
Background technology
The goods internal soundness is the important indicator of Part Quality Control, and it adopts supersonic detection method to detect usually.Ultrasonic detection equipment has bigger sensitivity adjustment scope after making up with probe, choosing of its sensitivity all will be according to acoustic propagation characteristic, material internal defect acoustic propagation characteristic, material thickness and the detection requirement of tested material, select to make in its corresponding test block the representative artificial reflecting body of suitable type and size, with its reflection wave or penetrated wave characteristic benchmark as a comparison at different depth, determine tested goods internal soundness, detecting defects size, position and kind, guarantee in testing process the consistance of detection system simultaneously.
Existing Ultrasonic Detection reference block is usually all only at single compound substance, as carbon fiber, high silica fiber etc., and for the goods of some change of shape of making by at least two kinds of compound substances, as be the jet pipe diffuser heat insulation layer goods of variable cross section cone tubular construction, because the thickness of its compound substance constantly changes, cause the transonic characteristic in each cross section inconsistent, so the making of the defective of its reference block can not be simply definite.In addition, because this based article complex process, various generation of defects mechanism are also quite complicated, defective differs to the waveform response that ultrasound wave produces, be difficult to produce representative artificial defect thing, Ultrasonic Detection accuracy to insulating product has brought great difficulty, therefore, needs a kind of improved Ultrasonic Detection reference block badly to overcome aforementioned disadvantages.
Summary of the invention
The purpose of this utility model is exactly the reference block that will provide a kind of Ultrasonic Detection sensitivity that is applicable to the heat insulation layer goods of being made by multiple compound substance simple in structure, easy to use to debug.
For achieving the above object, the designed Ultrasonic Detection reference block of the utility model comprises first test block, second test block and the 3rd test block.With the resin material density of the to be checked heat insulation layer goods identical right cylinder of described first test block for making by anti-aging material.Described second test block is the variable cross section conic tube, described variable cross section conic tube comprise the interior composite layer identical with the inner layer material of heat insulation layer goods to be checked and with the outer identical outer composite layer of heat insulation layer goods to be checked.Zone in described beyond the sudden change zone of composite layer and described outer compound substance layer thickness is embedded with a plurality of artificial defect things.Described artificial defect thing comprises the imporous preimpregnation cloth of being made by the compound substance identical with embedding position, the preimpregnation cloth and the resin film test block in crack with holes.Described the 3rd test block comprises two arc pieces, described arc piece comprise the interior composite layer identical with the inner layer material of heat insulation layer goods to be checked and with the outer identical outer composite layer of heat insulation layer goods to be checked.Wherein, arc piece composite layer in it is shaped on the equivalent cylinder flat-bottom hole of a plurality of different depths, different-diameter, and another arc piece composite layer outside it is shaped on the equivalent cylinder flat-bottom hole of a plurality of different depths, different-diameter.
Advantage of the present utility model is: the designed Ultrasonic Detection reference block that is used for the heat insulation layer goods comprises three kinds of test blocks, wherein, first test block be used to debug ultrasonic testing system sensitivity, testing tool and probe performance, determine the repeatability of testing conditions; When second test block is used to spray water pulse through transmission technique detection heat insulation layer goods, adjust the sensitivity adjustment of ultrasound measuring instrument, the scanning scope is adjusted, the repeatability of the equivalent size of evaluation defective and assurance testing result; The sensitivity adjustment of ultrasound measuring instrument when the 3rd test block is used to spray water pulse reflection method detection heat insulation layer goods, sweep limit adjustment, the reproduction of the equivalent size of evaluation defective and assurance testing result.By aforementioned first, second and the 3rd test block, can simulate the sensitivity that the material object with known defect is debugged jet pipe diffuser heat insulation layer goods Ultrasonic Detection, thereby can detect heat insulation layer goods with similar sizes, similar shape.Use Ultrasonic Detection reference block of the present utility model that detection system is debugged and checked, not only can guarantee the sensitivity that detects, can guarantee heat insulation layer goods internal soundness simultaneously.
Preferably, described on it diameter of the preimpregnation cloth in crack with holes be 10mm or 20mm, the diameter of imporous described preimpregnation cloth is 5mm or 10mm, described resin film test block is a right cylinder, the bottom surface diameter of described resin film test block is 10mm or 20mm, thickness is 1mm, and what described artificial defect thing was embedded in 1/2,1/3 or 2/3 thickness place of described second test block and was positioned at described variable cross section conic tube does not radially overlap the place.The defective of heat insulation layer goods can effectively be simulated in the size of these artificial defect things and embedding position, and is representative, thereby can further improve the detection quality.
Preferably, described preimpregnation cloth is covered with the high temperature resistance thinfilm protective coating outward, with the reliability that guarantees that artificial defect object is made.
Description of drawings
Fig. 2 a is the structural representation of an embodiment of second test block of the utility model Ultrasonic Detection reference block;
Fig. 2 b is that second test block shown in Fig. 2 a is along the schematic cross-section of A-A face;
Fig. 2 c is that second test block shown in Fig. 2 a is along the schematic cross-section of B-B face;
Fig. 2 d is that second test block shown in Fig. 2 a is along the schematic cross-section of C-C face;
Fig. 3 a is the structural representation of an embodiment of the 3rd test block of the utility model Ultrasonic Detection reference block;
Fig. 3 b is the upward view of the 3rd test block shown in Fig. 3 a;
Fig. 4 a is the structural representation of an embodiment of another the 3rd test block of the utility model Ultrasonic Detection reference block;
Fig. 4 b is the vertical view of the 3rd test block shown in Fig. 4 a.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Present embodiment is an example with the reference block that is used to detect the sensitivity adjustment of jet pipe diffuser heat insulation layer goods Ultrasonic Detection instrument, describes content of the present utility model in detail.For ease of understanding, the structure of jet pipe diffuser heat insulation layer goods is described at first.Jet pipe diffuser heat insulation layer goods are variable cross section cone tubular construction, by carbon cloth, high silica cloth with strengthen that phenolics is compound to be entwined, the thickness of two kinds of compound substances of goods constantly changes, cause the transonic characteristic in each cross section inconsistent, the ultrasonic basis that must determine each cross section comprises energy attenuation and waveform characteristic etc. with reference to characteristic with holding water.
The reference block that is used for heat insulation layer goods Ultrasonic Detection of present embodiment comprises first reference block, second reference block and the 3rd reference block.
As shown in the figure, described first reference block is a right cylinder, adopts anti-aging material, makes as resin material etc.Preferably, can adopt the epoxy phenolics molded curing to form, the defective that influences such as the inner no bubble in the back that completes, crackle detect, density is 1.20g/cm
3, suitable with resin material density in the heat insulation layer goods to be checked.This first test block be used to debug ultrasonic testing system sensitivity, testing tool and probe performance, determine the repeatability of testing conditions.
When second test block is used to spray water pulse through transmission technique detection heat insulation layer goods, adjust the sensitivity adjustment of ultrasound measuring instrument, the scanning scope is adjusted, the repeatability of the equivalent size of evaluation defective and assurance testing result.Shown in Fig. 2 a, described second reference block is the variable cross section conic tube.Described variable cross section conic tube comprise the interior composite layer 2a identical with the inner layer material of heat insulation layer goods to be checked and with the outer identical outer composite layer 2b of heat insulation layer goods to be checked.There is the zone of a significant change in the thickness of composite layer 2a and described outer composite layer 2b in described, the regional 2c that promptly suddenlys change, and the zone beyond this regional 2c that suddenlys change is embedded with a plurality of artificial defect thing 2d.Described artificial defect thing 2d comprises the preimpregnation cloth in imporous preimpregnation cloth, resin film test block and crack with holes.The preimpregnation cloth in described imporous preimpregnation cloth and crack with holes is made by the compound substance identical with embedding position.Wherein, the preimpregnation cloth in crack with holes is gas hole defect, and the resin film test block is poly-glue defective, and imporous preimpregnation cloth is lamination defect.Described artificial defect thing 2d is embedded in 1/2,1/3 or 2/3 thickness place of described second test block, and does not upwards overlap in the footpath of described variable cross section conic tube, shown in Fig. 2 b～2d.Described on it diameter of the preimpregnation cloth in crack with holes can be 10mm or 20mm, the diameter of imporous preimpregnation cloth can be 5mm or 10mm, described resin film test block is a right cylinder, and the bottom surface diameter of described resin film test block can be 10mm or 20mm, and thickness can be 1mm or littler.The defective of heat insulation layer goods can effectively be simulated in size and the embedding position of these artificial defect things 2d, and is representative, thereby can further improve the detection quality.
Preferably, the preimpregnation cloth in described crack with holes and imporous preimpregnation cloth are covered with high temperature resistance thinfilm protective coating (figure does not show) outward, this thinfilm protective coating high temperature resistance, and anti-resin immerses, and then guarantees the reliability that artificial defect object is made.Described resin film test block can be the test block of ba phenolic resin film.
In the present embodiment, altogether embedding 16 typical artificial defect thing 2d comprise seven lamination defect 11-16,32, seven gas hole defect 21-26,31 and two poly-glue defectives 33,34.Described artificial defect thing 2d is embedded in small end 50mm, 100mm and the 300mm place apart from described variable cross section conic tube respectively, i.e. A-A, B-B, C-C section place among the figure, and embedding position of artificial defect thing and big or small corresponding relation see Table 1.Detect data and relatively can draw by ultrasonic and CT, X ray: the distortion of the defective of second reference block is little, embedding location is stable, testing result and defective relate to the requirement basically identical, second reference block is representative, can provide standard for seeking goods ultrasonic energy propagation law and goods inherent vice ultrasonic propagation feature.
Table 1 second test block defective embedding location and the size
Fig. 3 a-3b and Fig. 4 a-4b have shown the 3rd reference block of the present utility model, the sensitivity adjustment of ultrasound measuring instrument when the 3rd test block is used to spray water pulse reflection method detection heat insulation layer goods, sweep limit is adjusted, the reproduction of the equivalent size of evaluation defective and assurance testing result.Described the 3rd test block comprises two arc pieces, described arc piece comprise the interior composite layer 3a identical with the inner layer material of heat insulation layer goods to be checked and with the outer identical outer composite layer 3b of heat insulation layer goods to be checked.Wherein, arc piece composite layer 3a in it is shaped on the equivalent cylinder flat-bottom hole 3c of a plurality of different depths, different-diameter, and another arc piece composite layer 3b outside it is shaped on the equivalent cylinder flat-bottom hole 3c of a plurality of different depths, different-diameter.The diameter of described equivalent cylinder flat-bottom hole 3c is 10mm or 20mm.
By reference block of the present utility model, can simulate the sensitivity that the material object with known defect is debugged heat insulation layer goods Ultrasonic Detection, thereby can detect heat insulation layer goods with similar sizes, similar shape.It designs and produces and meets the requirement of Ultrasonic Detection principle, has contained the big thickness range transonic feature of heat insulation layer goods, uses it that detection system is debugged and checked, and not only can guarantee the sensitivity that detects can guarantee heat insulation layer goods internal soundness simultaneously.
Claims (5)
1. reference block that is used for heat insulation layer goods Ultrasonic Detection comprises first test block (1), second test block (2) and the 3rd test block (3), it is characterized in that:
With the resin material density of the to be checked heat insulation layer goods identical right cylinder of described first test block (1) for making by anti-aging material;
Described second test block (2) is the variable cross section conic tube, described variable cross section conic tube comprises interior composite layer (2a) identical with the inner layer material of heat insulation layer goods to be checked and the outer composite layer (2b) identical with the cladding material of heat insulation layer goods to be checked, the zone in addition, sudden change zone (2c) of composite layer (2a) and described outer composite layer (2b) thickness is embedded with a plurality of artificial defect things (2d) in described, and described artificial defect thing (2d) comprises the imporous preimpregnation cloth of being made by the compound substance identical with embedding position, the preimpregnation cloth in crack with holes, and resin film test block;
Described the 3rd test block (3) comprises two arc pieces, described arc piece comprises interior composite layer (3a) identical with the inner layer material of heat insulation layer goods to be checked and the outer composite layer (3b) identical with the cladding material of heat insulation layer goods to be checked, wherein, arc piece composite layer (3a) in it is shaped on the equivalent cylinder flat-bottom hole (3c) of a plurality of different depths, different-diameter, and another arc piece composite layer (3b) outside it is shaped on the equivalent cylinder flat-bottom hole (3c) of a plurality of different depths, different-diameter.
2. reference block according to claim 1, it is characterized in that: the diameter of the preimpregnation cloth in described crack with holes is 10mm or 20mm, the diameter of described imporous preimpregnation cloth is 5mm or 10mm, described resin film test block is a right cylinder, the bottom surface diameter of described resin film test block is 20mm or 10mm, thickness is 1mm, and what described artificial defect thing (2d) was embedded in 1/2,1/3 or 2/3 thickness place of described second test block and was positioned at described variable cross section conic tube does not radially overlap the place.
3. reference block according to claim 2 is characterized in that: the preimpregnation cloth in described imporous preimpregnation cloth and described crack with holes is covered with the high temperature resistance thinfilm protective coating outward.
4. according to each described reference block in the claim 1 to 3, it is characterized in that: described resin film test block is the test block of ba phenolic resin film.
5. according to each described reference block in the claim 1 to 3, it is characterized in that: the diameter of described equivalent cylinder flat-bottom hole (3c) is 10mm or 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201886869U CN201897590U (en) | 2010-05-07 | 2010-05-07 | Reference block used for ultrasonic test of thermal-insulation layer products |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201886869U CN201897590U (en) | 2010-05-07 | 2010-05-07 | Reference block used for ultrasonic test of thermal-insulation layer products |
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| CN201897590U true CN201897590U (en) | 2011-07-13 |
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| CN2010201886869U Expired - Fee Related CN201897590U (en) | 2010-05-07 | 2010-05-07 | Reference block used for ultrasonic test of thermal-insulation layer products |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076095A (en) * | 2014-07-24 | 2014-10-01 | 大连理工大学 | Insulation layer debonding damage monitoring method based on ultrasonic guided waves |
| CN104914171A (en) * | 2015-06-24 | 2015-09-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | Detecting method of far-field near-bottom-surface blind areas of ultrasonic wave normal probes and workpiece processing method for overcoming near-bottom-surface defect of workpiece |
| CN109406630A (en) * | 2018-10-15 | 2019-03-01 | 成都飞机工业（集团）有限责任公司 | A kind of reference block and preparation method thereof for coating composite material structure ultrasound detection |
| CN109959705A (en) * | 2019-04-23 | 2019-07-02 | 华能国际电力股份有限公司 | A kind of band coating EDDY CURRENT reference block and preparation method thereof |
| CN110196286A (en) * | 2018-02-26 | 2019-09-03 | 漆松林 | A kind of reference block |
| CN113267571A (en) * | 2021-04-28 | 2021-08-17 | 华北电力科学研究院有限责任公司 | Test block for ultrasonic detection of porcelain piece under sleeve and detection method |
-
2010
- 2010-05-07 CN CN2010201886869U patent/CN201897590U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076095A (en) * | 2014-07-24 | 2014-10-01 | 大连理工大学 | Insulation layer debonding damage monitoring method based on ultrasonic guided waves |
| CN104914171A (en) * | 2015-06-24 | 2015-09-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | Detecting method of far-field near-bottom-surface blind areas of ultrasonic wave normal probes and workpiece processing method for overcoming near-bottom-surface defect of workpiece |
| CN104914171B (en) * | 2015-06-24 | 2018-01-02 | 中车戚墅堰机车车辆工艺研究所有限公司 | The detection method of the nearly bottom surface blind area in straight beam method head far field and the Work piece processing method for overcoming the nearly bottom surface defect of workpiece |
| CN110196286A (en) * | 2018-02-26 | 2019-09-03 | 漆松林 | A kind of reference block |
| CN109406630A (en) * | 2018-10-15 | 2019-03-01 | 成都飞机工业（集团）有限责任公司 | A kind of reference block and preparation method thereof for coating composite material structure ultrasound detection |
| CN109959705A (en) * | 2019-04-23 | 2019-07-02 | 华能国际电力股份有限公司 | A kind of band coating EDDY CURRENT reference block and preparation method thereof |
| CN113267571A (en) * | 2021-04-28 | 2021-08-17 | 华北电力科学研究院有限责任公司 | Test block for ultrasonic detection of porcelain piece under sleeve and detection method |
| CN113267571B (en) * | 2021-04-28 | 2022-11-11 | 华北电力科学研究院有限责任公司 | Test block for ultrasonic detection of porcelain piece under casing and detection method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20140507 |