Find the most up-to-date version of JIS Z at Engineering JIS Z Methods of radiographic examination for welded joints in steel ( FOREIGN STANDARD). standard by Japanese Industrial. Home · Documents; JIS Japanese Industrial Standard – JIS Z – Radiographic Examination for Weld Joints in Steel.
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Not applicable to fillet weld.
Angle Beam Method for Flaw detection Share mode ultrasound is sent with specified angle, 45, 60, 70 degree, and operator received a signal from flaw. Non-relevant signal and noise are disturbed evaluation.
Thicker coating must be removed before testing. A magnified and visible indication that jiis built up with magnetic particle in magnetic flux leakage can be detected easily.
JIS Z 3104:1995 English Edition
Coupling medium must be applied on surface of subjects for testing Generally, not evaluate the kind of discontinuity.
Test is applicable from one side of objects. Easy for evaluating the kind of discontinuity from test results. 314 for handling with portable devices. V Magnetic Particle Testing: Results 1 – 1 of 1.
Surface and near surface discontinuity can be detected. Most economical method for tube inspection of a heat exchanger to detect local corrosion and erosion.
Easy for detecting a superficial discontinuity.
Methods of Radiographic examination for welded joints in stee..|INIS
Revised standard, JIS Z Careful application according to a test procedure is required for getting proper test results. Ultrasonic transducer inserted into a tube can read the degree wall thickness via a rotating mirror attached to water turbine that is worked by pressure water. Kind, shape and dimension of discontinuity can not be identified from test results. Weak Point Jus for both side of test object is required. MT Advantage Cost for testing is lower than other methods. The revision of 31044 standard was attempted several times, and the course of revision id described.
Limited to ferromagnetic materials. The constitution of the standard is explained. Thinner coating covered a surface discontinuity is not disturbed for detecting by this method. At last, this revised standard was instituted on February 1, by investigating the present status in Japan and jjis countries by the cooperation of the related organizations and experts, and considering the compatibility with the international standards, based on the WES standards which are enumerated.
Standard Search Advanced Search. Comparatively, cost for testing is higher than others. Methods of Radiographic examination for welded joints in steel. Normal Straight Beam method for Flaw detection This is a method to send ultrasounds to the tested surface and receive the signal of subject flaws by a Normal transducer positioned perpendicular. No electric power is required except for lighting in dark room. Get permanent URL for this record. Test is applied on ferromagnetic materials only.
Easy for detecting a plain type discontinuity. Plain type discontinuity like a crack, is not detected when the face has an angle usually over 15 degree to exposure direction of RT.
Information of flaw’s height, spreading along to wall thickness direction can be got. Cost for testing is lower than other methods.
Easy to apply in field testing when used portable set. Round type discontinuity is difficult for detection. Weak Point Required to remove the coating and foreign material inside a flaw completely before testing. UT Advantage Easy for detecting a plain type discontinuity. The main points of the revision in the standard proper and the appendices for the cases of steel plate welded joints, the circumferential joints of steel pipes, the T-shaped joints of steel plates and the method of classifying flaw images by radiographs are described.