CN2370416Y - Single crystal chip water column water film probe - Google Patents
Single crystal chip water column water film probe Download PDFInfo
- Publication number
- CN2370416Y CN2370416Y CN 99223302 CN99223302U CN2370416Y CN 2370416 Y CN2370416 Y CN 2370416Y CN 99223302 CN99223302 CN 99223302 CN 99223302 U CN99223302 U CN 99223302U CN 2370416 Y CN2370416 Y CN 2370416Y
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- CN
- China
- Prior art keywords
- water column
- probe
- water
- sealing
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model discloses a single crystal chip water column water film straight probe, which is suitable for ultrasonic flaw detection of 20-200 mm thick steel plates and belongs to a single crystal chip straight probe when a local water logging method is used for flaw detection. A probe core is composed of a shell, an absorption block, a piezoelectric crystal chip and an electrode wire, and is sealed into an integral body through sealing glue. The probe core and an upper port of a water column outer shell are screw sealed connection; a lower port is tightly fastened and closed by an acoustic permeability film and a sealing nut. The water column outer shell and a wear-resistant disc are threaded connection. The water film can be adjusted. The performance of the probe satisfies the technical standard order. The utility model has the characteristics of high work efficiency, high sensitivity, correct detection rate guarantee and convenient operation.
Description
The utility model relates to a kind of 20-200mm of being used for steel plate UT (Ultrasonic Testing) probe, particularly relates to the single-chip water column moisture film normal probe when adopting local water seaoning to detect a flaw.
The UT (Ultrasonic Testing) of sheet metal, owing to be verified the sheet metal thickness difference, to the method for inspection that adopts and also different to the probe performance requirement, this clear and definite regulation in the technical standard of various countries.At present, China is to 20-200mm steel plate UT (Ultrasonic Testing), many with a kind of water-filling normal probe, it is to be connected and composed by probe core and water layer water column housing, water layer water column housing lower end is an open type, lower port is pressed above tested plate during detection, by changing probe core and water layer water column housing homophase to the position, adjust the water layer height, employed N the coincidence method requirement but this probe incompatibility steel plate is detected a flaw, it must be very high with the water layer adjustment, thereby need water filling in the water layer housing frequently in the flaw detection operation, especially in scanning because of probe when slightly fascinating, there are a large amount of current to lose, have to stop operation, carry out water filling, incur loss through delay the flaw detection time, not only inefficiency is also made troubles to operation.Another some deficiency is because the probe core has exposed piezoelectric chip, to immerse all the time in the water layer, water layer is because of being contacted contaminatedly with examining plate, and water layer is adjusted higherly in addition, is easy to generate bubble, water layer pollutes and bubble produces, and the sensitivity of influence probe reduces the just inspection rate of detecting a flaw.
The purpose of this utility model is to overcome above-mentioned weak point of the prior art, a kind of single-chip water column moisture film normal probe of the 20-200mm of being suitable for steel plate flaw detection is provided, cancellation is because of the operation link of the necessary water filling of water layer loss, eliminating the probe core polluted by water layer and produces bubble and influence the sensitivity phenomenon, improve flaw detection efficient, guarantee just inspection rate.
The purpose of this utility model is to reach by following measures:
The utility model is made single-chip water column moisture film normal probe, by the probe core, water layer water column housing and wear-resisting dish constitute, probe core 1 is by housing 2, absorb piece 3, the chip electrode line 6 of piezoelectric chip 4 and connection housing socket 5 thereof is formed, make closed by sealing glue 7, said water layer water column housing is made the water column shell 2 of sealing, and upper port has sealing thread to combine with 1 in core of probe, there is O RunddichtringO 9 port, lower port has blind nut 10 fastening sound passing membranes 11, and end opening O RunddichtringO 12 sealing water columns, is threaded between water column shell 2 and the wear-resisting dish 13, and set nut 14 arranged, be fastenedly connected water column shell 2, with wear-resisting dish 13, and between scanning set collar 15, the wear-resisting end of trying to get to the heart of a matter has makes the stable cylindrical cavity of moisture film 16, communicates with water-filling nozzle 17 and vent port 18.
The purpose of this utility model can also reach by such measure:
Sound passing membrane 11 shapes of sealing water column shell lower end are made round sheet, and thickness is 0.4-1.2mm, and week is along making the warpage sealing ring.
The utility model has following advantage compared to existing technology:
1. flaw detection high efficiency owing to probe adopts sealing water column structure, thereby has been cancelled the operation link of water layer adjusting or water filling frequently in the flaw detection, not only bring convenience to operation, also increases work efficiency greatly.
2. flaw detection sensitivity and just inspection rate height has sealing water column structure owing to pop one's head in, overcome in the prior art to produce the shortcoming of aeration flaw detection with water layer because of piezoelectric chip is contaminated, thus the sensitivity and the just inspection rate of assurance probe.
3. the probe performance satisfies technical standard order, as China GB/T2970-91, JB4730-94, Japan JISG0801-1993, the utility model reach and surpass set quota, when surveying the 200mm steel plate, surpass 40dB at ∮ 5.6 bottom outlet surplus sensitivities, signal to noise ratio (S/N ratio) surpasses 20dB.
Below in conjunction with accompanying drawing the utility model is described in detail:
Drawing is described as follows:
Fig. 1 is the structure construction sectional view of a kind of embodiment of the utility model
In conjunction with Fig. 1, it is a kind of single-chip water column moisture film normal probe structure construction, probe core 1, by probe core housing 2, absorb piece 3, piezoelectric chip 4, and the chip electrode line 6 that connects housing socket 5 is formed, make one by sealing glue 7, the upper port of the water column shell 8 of sealing with pop one's head between the core housing 2 to screw thread combines, there is O RunddichtringO 9 port, the lower port of water column shell 8 has blind nut 10, fastening sound passing membrane 11 and end opening O RunddichtringO 12, the sealing water column is threaded between water column shell 8 and the wear-resisting dish 13, and there is set nut 14 to be fastenedly connected water column shell 8 and wear-resisting dish 13, and scanning set collar 15 therebetween, the wear-resisting end of trying to get to the heart of a matter has makes stable cylindrical cavity of moisture film 16 and water-filling nozzle 17, and vent port 18 communicates.
The shape of the sound passing membrane 11 of sealing water column shell lower end can be round sheet, thickness 0.4-1.2mm, and week is along also can be made into the warpage sealing ring.
Claims (2)
1. single-chip water column moisture film normal probe that is used for 20-200mm steel plate UT (Ultrasonic Testing), it is to be connected and composed by probe core and water layer water column housing, it is characterized in that said probe core (1) is to absorb piece (3) by probe core housing (2), piezoelectric chip (4) and the chip electrode line (6) that is connected in housing socket (5) thereof are formed, make closed by sealing glue (7), said water layer water column housing is made the water column shell (8) of sealing, combine for screw thread between upper port and the probe core housing, there is O-ring seal (9) port, lower port has fastening sound passing membrane of blind nut (10) (11) and end opening O RunddichtringO (12) sealing water column, be threaded between water column shell (8) and the wear-resisting dish (13), and there is set nut (14) to be fastenedly connected water column shell (8) and wear-resisting dish (13), and scanning set collar (15) therebetween, the wear-resisting end of trying to get to the heart of a matter has the cylindrical cavity (16) that makes moisture film stable to communicate with water-filling nozzle (17) and vent port (18).
2. single-chip water column moisture film normal probe according to claim 1 is characterized in that the round sheet that is shaped as of said sealing water column shell lower end sound passing membrane (11), thickness are that 0.4-1.2mm week is along making the warpage sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223302 CN2370416Y (en) | 1999-04-01 | 1999-04-01 | Single crystal chip water column water film probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223302 CN2370416Y (en) | 1999-04-01 | 1999-04-01 | Single crystal chip water column water film probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2370416Y true CN2370416Y (en) | 2000-03-22 |
Family
ID=34013538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99223302 Expired - Fee Related CN2370416Y (en) | 1999-04-01 | 1999-04-01 | Single crystal chip water column water film probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2370416Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308606A (en) * | 2013-06-06 | 2013-09-18 | 吴来政 | Transverse wave focusing and flushing ultrasonic probe |
-
1999
- 1999-04-01 CN CN 99223302 patent/CN2370416Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308606A (en) * | 2013-06-06 | 2013-09-18 | 吴来政 | Transverse wave focusing and flushing ultrasonic probe |
| CN103308606B (en) * | 2013-06-06 | 2015-07-08 | 吴来政 | Transverse wave focusing and flushing ultrasonic probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |