JPS55138653A - Ultrasonic flaw detector - Google Patents

Ultrasonic flaw detector

Info

Publication number
JPS55138653A
JPS55138653A JP4765879A JP4765879A JPS55138653A JP S55138653 A JPS55138653 A JP S55138653A JP 4765879 A JP4765879 A JP 4765879A JP 4765879 A JP4765879 A JP 4765879A JP S55138653 A JPS55138653 A JP S55138653A
Authority
JP
Japan
Prior art keywords
probes
opening
arms
inspected
outer barrel
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.)
Pending
Application number
JP4765879A
Other languages
Japanese (ja)
Inventor
Hisao Yamaguchi
Masaaki Kawai
Morihiro Kamikubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP4765879A priority Critical patent/JPS55138653A/en
Publication of JPS55138653A publication Critical patent/JPS55138653A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE: To perform the ultrasonic flaw detection of the cylindrical object to be inspected readily and surely by making probes openable to umbrella form.
CONSTITUTION: Three mounting arms 3 are pivotally supported in the three- equidistant positions of a flange 11 provided at the end part of an outer barrel 1 and three probes 4 are mounted to the end thereof. Opening and closing arms 5 are pivotally supported in the three equidistant positions at the end of the circular barrel 2 protruding from the outer barrel 1 and their ends are connected to the mounting arms 3. Then, when the inside barrel 2 is moved forward and backward with respect to the outer barrel 1 by the operation of an opening-closing handle 23, the opening-closing arms 5 and mounting arms 3 act as if they are bones of an umbrella, causing the probes 4 to open and close in umbrella form. Hence, if the probes 4 in the closed state are inserted into the cylindrical object S to be inspected such as axle and are then expanded, the probes 4 contact wht content of the cylindrical object S to be inspected under sufficient contact pressure, thus the intended object is achieved.
COPYRIGHT: (C)1980,JPO&Japio
JP4765879A 1979-04-17 1979-04-17 Ultrasonic flaw detector Pending JPS55138653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4765879A JPS55138653A (en) 1979-04-17 1979-04-17 Ultrasonic flaw detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4765879A JPS55138653A (en) 1979-04-17 1979-04-17 Ultrasonic flaw detector

Publications (1)

Publication Number Publication Date
JPS55138653A true JPS55138653A (en) 1980-10-29

Family

ID=12781347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4765879A Pending JPS55138653A (en) 1979-04-17 1979-04-17 Ultrasonic flaw detector

Country Status (1)

Country Link
JP (1) JPS55138653A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61200465A (en) * 1985-01-17 1986-09-05 ゼネラル・エレクトリツク・カンパニイ Ultrasonic transducer assembly
JPS6293658A (en) * 1985-10-18 1987-04-30 Nichizou Tec:Kk Jig for ultrasonic flaw detection of pipe end welded part
JPH06265528A (en) * 1991-12-20 1994-09-22 Railway Technical Res Inst Method and apparatus for detecting flaw of bored axle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61200465A (en) * 1985-01-17 1986-09-05 ゼネラル・エレクトリツク・カンパニイ Ultrasonic transducer assembly
JPS6293658A (en) * 1985-10-18 1987-04-30 Nichizou Tec:Kk Jig for ultrasonic flaw detection of pipe end welded part
JPH06265528A (en) * 1991-12-20 1994-09-22 Railway Technical Res Inst Method and apparatus for detecting flaw of bored axle

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