众所周知,在进行洛氏硬度试验时,试样背面应与载物台面平行,并且紧密接合。为此在对较长且较重的零件,如长轴,进行靠近端部附近的洛氏硬度试验时,常常是利用辅助支架支撑其一端,以便使长轴的另一端能平稳地安置在硬度计的载物台上。进行硬度试验。如何合理地利用辅助支架调整长形工件的位置呢? As we all know, in the Rockwell hardness test, the back of the sample should be parallel with the stage, and close together. For this reason, in the case of longer and heavier parts such as the long axis, near the end, a Rockwell hardness test is usually carried out by using an auxiliary bracket to support one end thereof so that the other end of the long shaft can be smoothly set at a hardness On the stage of the meter. Hardness test. How to make reasonable use of auxiliary bracket to adjust the position of long work piece?