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|Product Name:||Notch Making Machine||Model:||NSM201B|
|Specimen Size:||10x10(7.5, 5, 2.5)x55mm||Optional Notch:||U2 U3|
Sample Making Machine Notch Making U5 type ISO148 Gost 9454 and Type C ASTM E23 NSM201B
This type of machine is specifically designed for preparing notch specimens for Charpy test.
Standards: E23- Standard Test Methods for Notched Bar Impact Testing of Metallic Materials
1.1 These test methods describe notched-bar impact testing of metallic materials by the Charpy (simple-beam) test and the Izod (cantilever-beam) test. They give the requirements for: test specimens, test procedures, test reports, test machines (see Annex A1) verifying Charpy impact machines (see Annex A2), optional test specimen configurations (see Annex A3), designation of test specimen orientation (see Terminology E1823), and determining the percent of shear fracture on the surface of
broken impact specimens (see Annex A4). In addition, information is provided on the significance of notched-bar impact testing (see Appendix X1), and methods of measuring the center of strike (see Appendix X2).
1.2 These test methods do not address the problems associated with impact testing at temperatures below –196 °C (77 K).
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
2. Test Specimens
2.1 Configuration and Orientation:
2.1.1 Specimens shall be taken from the material as specified by the applicable specification.
2.1.2 The type of specimen chosen depends largely upon the characteristics of the material to be tested. A given specimen may not be equally satisfactory for soft nonferrous metals and hardened steels; therefore, many types of specimens are recognized. In general, sharper and deeper notches are required to distinguish differences in very ductile materials or when using low testing velocities.
2.1.3 The specimens shown in Figs. 1 and 2 are those most widely used and most generally satisfactory. They are particularly suitable for ferrous metals, excepting cast iron.3
2.1.4 The specimens commonly found suitable for powder metallurgy materials are shown in Figs. 3 and 4. Powder metallurgy impact test specimens shall be produced following the procedure in Practice B925. The impact test results of these materials are affected by specimen orientation. Therefore, unless otherwise specified, the position of the specimen in the machine shall be such that the pendulum will strike a surface that is parallel to the compacting direction. For powder metallurgy materials the impact test results are reported as unnotched absorbed impact energy.
2.1.5 Sub-size and supplementary specimen recommendations are given in Annex A3.
Broacher travel: 340±10mm
Lubrication system: lubricating oil circulation, oil is adjustable
Hydraulic oil: L-HM46
Oil volume: 20L, prepared by customer
Power consumption: 500W
Power requirements: 3-phase, 5-line, AC 380V±10%, 50Hz
Machine dimension (L x W x H): 430 x 750 x 1250mm
Specimen size: 10x10(7.5, 5, 2.5)x55mm
U5 and type C (ASTM E23)