CN203232007U - Special ultrasonic flaw detection test block for perforation rivet multifork root - Google Patents
Special ultrasonic flaw detection test block for perforation rivet multifork root Download PDFInfo
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- CN203232007U CN203232007U CN 201320212533 CN201320212533U CN203232007U CN 203232007 U CN203232007 U CN 203232007U CN 201320212533 CN201320212533 CN 201320212533 CN 201320212533 U CN201320212533 U CN 201320212533U CN 203232007 U CN203232007 U CN 203232007U
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- test block
- wire cutting
- round hole
- circular hole
- cutting slot
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000001514 detection method Methods 0.000 title abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 241000124033 Salix Species 0.000 claims description 13
- 230000002950 deficient Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to a special ultrasonic flaw detection test block for a perforation rivet multifork root. The test block comprises a 20# steel test block, a left round hole, a right round hole, a first wire cutting slot, a second wire cutting slot, a third wire cutting slot and a fourth wire cutting slot, wherein the length, width and height of the 20# steel test block are 80mm, 60mm and 10mm respectively; the left round hole vertically penetrates through the surface of the test block, and the center is 25mm away from the left edge of the test block and 18mm away from the upper edge of the test block; the right round hole is symmetric to the axis of the left round hole test block; the first wire cutting slot and the second wire cutting slot are formed on the two sides from left to right on the horizontal center line of the left round hole; the third wire cutting slot and the fourth wire cutting slot are formed on the two sides from left to right on the horizontal center line of the right round hole; the length of the first, the second, the third and the fourth wire cutting slots is 0.5mm respectively; the diameter of the left round hole and the right round hole is (phi)16mm respectively; the widths of the first, the second, the third and the fourth wire cutting slots is 0.4mm, 0.6mm, 0.8mm and 1.0mm respectively. The utility model provides an ultrasonic test block suitable for field detection of a perforation rivet multifork root for the generating set of 200MW and below of a power system, the detection quality is guaranteed, and the potential safety hazard is eliminated for safe operation of a power plant.
Description
Technical field
The utility model belongs to power equipment and makes the system of processing technical field, the special-purpose UT (Ultrasonic Testing) test block of especially a kind of junction of the edges of two sheets of paper willow hole multifork root.
Background technology
Blade is the vitals of steam turbine in the genset, because of blade root the safe operation of fracture accident serious threat steam turbine takes place often, therefore it is very important by various lossless detection methods blade in time being carried out preventive inspection, also is one of main test item of genset metal supervision inspection.
The position that present 200MW and the turbine blade of following genset are prone to accidents is final stage and time final stage, as shown in Figure 1, comprise impeller 1, blade root 2 and blade 3, their root mainly is junction of the edges of two sheets of paper willow hole multifork root, as shown in Figure 2, damage often appears in the blade root place, and the supervisory personnel just must detect flaw detection at spy point 4 places like this, but because therefore the on-the-spot complicated condition that detects must adopt reference block to guarantee the accuracy of Ultrasonic Detection.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of junction of the edges of two sheets of paper willow hole multifork root special-purpose UT (Ultrasonic Testing) test block.
The utility model solves its technical matters and takes following technical scheme to realize:
The special-purpose UT (Ultrasonic Testing) test block of a kind of junction of the edges of two sheets of paper willow hole multifork root, it is characterized in that: this test block comprises that long * wide * height is No. 20 steel test blocks of 80mm * 60mm * 10mm, vertically penetrate the test block surface, distance of center circle test block left hand edge 25mm, left circular hole apart from test block coboundary 18mm, with axisymmetric right circular hole in the left circular hole test block, at the left circular hole horizontal center line first line cutting groove and the second line cutting groove made of both sides from left to right, at right circular hole horizontal center line the 3rd line cutting groove and the 4th line cutting groove made of both sides from left to right, the length of described first to fourth line cutting groove is 0.5mm.
And the diameter of described left circular hole and right circular hole is φ 16mm.
And described width by first to fourth line cutting groove is respectively 0.4mm, 0.6mm, 0.8mm, 1.0mm.
Advantage of the present utility model and good effect are:
1, the utility model has been invented the ultrasonic test block that is suitable for on-the-spot detection junction of the edges of two sheets of paper willow hole multifork root at electric system 200MW and following genset, has guaranteed the detection quality, for potential safety hazard has been eliminated in the safe operation of power plant.
2, the utility model is skillfully constructed, and is simple in structure, is convenient to application.
Description of drawings
Fig. 1 is the structural representation of the turbine blade of generation current unit;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is topology view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
The special-purpose UT (Ultrasonic Testing) test block of a kind of junction of the edges of two sheets of paper willow hole multifork root, as shown in Figure 3, this test block comprises, and long * wide * height is No. 20 steel test blocks 1 of 80mm * 60mm * 10mm, vertically penetrate the test block surface, distance of center circle test block left hand edge 25mm, left circular hole 3 apart from test block coboundary 18mm, with axisymmetric right circular hole 6 in the left circular hole test block, at the left circular hole horizontal center line first line cutting groove 2 and the second line cutting groove 4 made of both sides from left to right, at right circular hole horizontal center line the 3rd line cutting groove 5 and the 4th line cutting groove 7 made of both sides from left to right, the length of described first to fourth line cutting groove is 0.5mm.
In concrete enforcement of the present utility model, the diameter of described left circular hole and right circular hole is φ 16mm.
In concrete enforcement of the present utility model, described width by first to fourth line cutting groove is respectively 0.4mm, 0.6mm, 0.8mm, 1.0mm.
Application principle
When using probe opposite joint willow hole multifork root portion to carry out the scanning defective, along with the difference of seam willow hole multifork root portion depth of defect, the scanning head signal also changes.When detecting seam willow hole multifork root portion discovery defective, utilize the actual detected result of scanning head to contrast the special-purpose test block of detection, according to the width that detects the corresponding line cutting groove of simulating blade root pin-and-hole portion left side circular hole and right circular hole next door in the special-purpose test block, can roughly determine position and the width of actual detected defective.
Claims (3)
1. special-purpose UT (Ultrasonic Testing) test block of junction of the edges of two sheets of paper willow hole multifork root, it is characterized in that: this test block comprises that long * wide * height is No. 20 steel test blocks of 80mm * 60mm * 10mm, vertically penetrate the test block surface, distance of center circle test block left hand edge 25mm, left circular hole apart from test block coboundary 18mm, with axisymmetric right circular hole in the left circular hole test block, at the left circular hole horizontal center line first line cutting groove and the second line cutting groove made of both sides from left to right, at right circular hole horizontal center line the 3rd line cutting groove and the 4th line cutting groove made of both sides from left to right, the length of described first to fourth line cutting groove is 0.5mm.
2. the special-purpose UT (Ultrasonic Testing) test block of junction of the edges of two sheets of paper willow hole multifork root according to claim 1, it is characterized in that: the diameter of described left circular hole and right circular hole is φ 16mm.
3. the special-purpose UT (Ultrasonic Testing) test block of junction of the edges of two sheets of paper willow hole multifork root according to claim 1, it is characterized in that: described width by first to fourth line cutting groove is respectively 0.4mm, 0.6mm, 0.8mm, 1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212533 CN203232007U (en) | 2013-04-24 | 2013-04-24 | Special ultrasonic flaw detection test block for perforation rivet multifork root |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212533 CN203232007U (en) | 2013-04-24 | 2013-04-24 | Special ultrasonic flaw detection test block for perforation rivet multifork root |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232007U true CN203232007U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320212533 Expired - Fee Related CN203232007U (en) | 2013-04-24 | 2013-04-24 | Special ultrasonic flaw detection test block for perforation rivet multifork root |
Country Status (1)
| Country | Link |
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| CN (1) | CN203232007U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696484A (en) * | 2018-03-12 | 2019-04-30 | 中电华创电力技术研究有限公司 | A kind of steam turbine blade root phased array supersonic flaw detection calibration block |
| CN109696473A (en) * | 2018-03-12 | 2019-04-30 | 中电华创(苏州)电力技术研究有限公司 | A kind of steam turbine blade root phased array supersonic flaw detection reference block |
| CN109696485A (en) * | 2018-08-20 | 2019-04-30 | 中电华创电力技术研究有限公司 | A kind of steam turbine multifork root phased array supersonic flaw detection debugging test block |
-
2013
- 2013-04-24 CN CN 201320212533 patent/CN203232007U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696484A (en) * | 2018-03-12 | 2019-04-30 | 中电华创电力技术研究有限公司 | A kind of steam turbine blade root phased array supersonic flaw detection calibration block |
| CN109696473A (en) * | 2018-03-12 | 2019-04-30 | 中电华创(苏州)电力技术研究有限公司 | A kind of steam turbine blade root phased array supersonic flaw detection reference block |
| CN109696484B (en) * | 2018-03-12 | 2023-12-12 | 中电华创电力技术研究有限公司 | Phased array ultrasonic flaw detection calibration test block for turbine blade root |
| CN109696485A (en) * | 2018-08-20 | 2019-04-30 | 中电华创电力技术研究有限公司 | A kind of steam turbine multifork root phased array supersonic flaw detection debugging test block |
| CN109696485B (en) * | 2018-08-20 | 2024-06-25 | 中电华创电力技术研究有限公司 | Phased array ultrasonic flaw detection debugging test block for fork-shaped blade root of steam turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20190424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |