布氏硬度布氏硬度测试基本上简单,通常是在工件的平面上,用直径10 mm的球形淬硬钢压头,施加上500~3000 kg的恒定压力(见图1)。测试有色金属,如铜和铝合金时一般用500 kg的载荷,而3 00kg的压力常用来测试较硬的金属,如钢和铸铁。施加压力有一个固定的时间(对铁或钢一般用10~15 s Brinell hardness Brinell hardness test is basically simple, usually in the plane of the workpiece, with a diameter of 10 mm spherical hardened steel pressure head, applied 500 ~ 3000 kg constant pressure (see Figure 1). Tests of non-ferrous metals, such as copper and aluminum alloys, typically use a load of 500 kg, whereas a pressure of 300 kg is commonly used to test harder metals such as steel and cast iron. Apply pressure for a fixed amount of time (typically 10 to 15 seconds for iron or steel)