JPS5832659B2 - Ultrasonic probe device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an ultrasonic probe device used when inspecting a material to be inspected for defects using ultrasonic waves.

When inspecting a material to be tested using ultrasonic waves, water is used as the ultrasonic medium to flow between the probe and the material to be tested, but if this water remains on the material to be tested even after the flaw detection, it can be a problem. be.

In other words, since many of the materials to be tested are steel products, if water gets on the materials after flaw detection, it will cause rust.

Furthermore, in surface wave flaw detection, when water flowing out from between the probe and the material being tested spreads out, ultrasonic waves propagate through the water, increasing attenuation and hindering flaw detection.

Conventionally, the water flowing out from between the probe and the test material was sprayed onto the test material by blowing air, but it could not be completely removed and the water had to be wiped off after the ultrasonic flaw detection. Ta.

The present invention proposes a probe device that eliminates such problems.

The invention will be explained below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a housing that covers five sides of the probe 2 except for the surface facing the specimen, and has a U-shaped cross section.

Reference numeral 3 denotes a collar-shaped shoe attached to the end of the housing 1, and a plurality of first grooves 4 are formed on four sides of the shoe.

Reference numeral 5 denotes a plurality of second grooves in the shape of an opening provided at the end of the housing 1 so as to surround the probe 2, and the grooves 5 communicate with the groove 4 described above.

Reference numeral 6 denotes a first flow channel through which water 8 that forms a water film is passed between the probe 2 and the test material 7, and 9 a second flow channel provided between the probe 2 and the housing 1. It has the role of sucking water 8 sent between the probe 2 and the specimen 7 through the first flow channel 6 and sending it out of the probe device.

Since the probe of the present invention is constructed as described above, air 10 is sucked and passes between the groove 4 and the test material 7 during flaw detection.
At the same time, the water 8 is sucked and drawn out of the probe device through the groove 5 and the second flow path 9, and is removed.

Therefore, no water remains on the surface of the test material 7.

As described above, the probe device of the present invention can remove the water used for flaw detection from the surface of the material to be inspected while detecting the flaw, so there is no need for wiping it off after flaw detection, and furthermore, no water remains. It can prevent the occurrence of rust.

In the embodiment, a case is shown in which a probe with a square cross section is used, but it goes without saying that the present invention is also applicable to a probe with a round cross section.

In that case, the groove 5 is circular and concentrically surrounds the probe.

[Brief explanation of drawings]

1 and 2 show an ultrasonic probe device according to the present invention, FIG. 1 is a sectional view thereof, and FIG. 2 is a bottom view thereof, in which 1 is a housing and 2 is an ultrasonic probe. , 3 is a shoe, 4 and 5 are grooves, 6 is a first flow channel, 7 is a test material, 8 is water, 9 is a second flow channel, and 10 is air. Note that the same or corresponding parts in the figures are denoted by the same reference numerals.

Claims (1)

[Claims] 1. An ultrasonic probe facing the material to be tested at a predetermined interval, a housing that covers the surface of the probe other than the surface facing the material to be tested, and a flange-shaped shoe provided at the end of the housing. a first groove provided on the surface of the shoe facing the test material; and a second groove provided at the end of the housing so as to communicate with the first groove and surround the probe. a first flow channel that forms a water film between the probe and the test material; and a second flow channel connected to the second groove and provided between the housing and the probe. The water supplied between the probe and the test material through the first flow channel is passed through the second groove, and An ultrasonic probe device characterized in that the ultrasonic probe is removed together with air sucked through a flow channel.