DIN EN CHARPY NOTCHED BAR IMPACT TEST ON METALLIC MATERIALS VERIFICATION OF PENDULUM IMPACT TESTING MACHINES. BS EN Charpy Impact Test on Metallic Materials Part 2: Method for the Verification of Impact Testing Machines. Corresponding national standard in UK Italy Belgium Sweden ISO DIN 51 NFA BS 8?.
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EN Impact Test_百度文库
NOTE One possible method of verification is that described in 5. The pointer shall permit a reading free from parallax. Thank you for interesting in our services. This shall be certified by the manufacturer of the machine. The test piece may be marked on any face not in contact with the supports or anvils and at a point at least 5 mm from the notch to avoid the effects of cold working due to marking. The apparatus used for the direct method shall have a certified traceability relative eh the SI system of units.
It is equal to the difference in potential energy between the initial position of the pendulum and the end of the first half-swing during which the test piece is broken 3.
For the C-shaped hammers, the broken parts of the test piece will not rebound onto the hammer if the play at each end of enn test piece exceeds 13 mm.
The test piece shall be broken within 5 seconds of the time of removal from the medium. The moment M of the pendulum is: The test report shall state that the test piece was not broken by x J.
BS EN 10045-2:1993
The dimensions of the striker shall be verified using jigs. EUCharpy impact test for steel.
EU, Impact testing using V-notch, beam type test piece. This shall be verified by direct measurement, unless a reference plane can be machined on the machine and then the above requirement shall be met.
Two types of hammer are generally used. Click to learn more. Verification de la machine d’essai mouton-pendule Title in German Metallische Werkstoffe.
ASTM E23, EN 10045-2, ISO 148, GOST 9454-78 Automated Impact Testing of Charpy and Izod Specimens
For tests at temperatures other than ambient, the test piece shall be immersed in the cooling or heating medium for sufficient time to ensure that the required temperature is reached throughout the test piece for example, at least 10 min in a liquid medium or at least 30 min in a gaseous medium. Annex A describes, for information purposes, a direct method ne verifying certain geometrical properties using a jig.
It describes 2 methods: BS EN Charpy i Report “BS EN “. Essai de flexion par choc sur eprouvette Charpy. Transparent lexan panels permit the operator to view the impact test at all times. NOTE For machines in which the hammer opening permits a play of at least 13 mm between the 10045–2 of the 1004-2 piece placed ready for the test and the safety stops, requirements a and d do not apply.
We need your help to maintenance this website. Accept and continue Learn more about the cookies we use and how to change your settings. 1005-2 px x x x x Annex B describes, for information purposes, a guide to the preparation of reference test pieces and their characteristics.
This value shall be indicated on the documentation provided by the manufacturer; b verification that the pendulum impact testing machine is not subject to any external vibration transmitted by the foundation. The width of the scale graduation 110045-2 shall be uniform and the width of the pointer shall be approximately equal to the width of one graduation mark.
Metallic materials — Impact test.
BS EN () – Free Download PDF
If more than 2 energy levels are verified, the additional levels shall be uniformly distributed in the range of application and as a function of the available reference test pieces. NOTE This may be verified by means of a bar approximately 55 mm long and of rectangular cross-section: For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. English version Metallic materials — Charpy impact test — Part 1: