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1.适用范围本标准规定了烧结金属材料(不包括硬质合金)在室温下进行冲击试验的方法,适用于测定处于简支梁(夏比)状态的烧结金属试样在一次冲击负荷作用下折断时的冲击吸收功。 2.引用标准 GB2975 《钢材力学及工艺性能试验取样规定》 GB3803 《摆锤式冲击试验机》 JJG145 《摆锤式冲击试验机检定规程》 3.术语 3.1 冲击吸收功Ak——具有一定形状和尺寸的烧结金属试样在一次冲击负荷作用下折断时所吸收的功。
1. Scope This standard specifies the impact of sintered metal materials (not including cemented carbide) at room temperature test method is suitable for determining the sintered metal specimens in Charpy (Charpy) state under an impact load Break when the impact of absorbed power. 2. Reference standard GB2975 “steel mechanical and process performance test sampling provisions” GB3803 “pendulum impact test machine” JJG145 “pendulum impact test machine verification procedures” 3. Terminology 3.1 Impact Absorption Ak - with a certain shape and size Of the sintered metal specimen under the impact of an impact load absorbed by the work.