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套类试件测定圆柱表面HRC,为避免弯曲变形对硬度值的影响,常采用特殊支承台,或破坏工件取样测定。两种方法效率低,成本高。采用特殊支承台由于接触问题往往会引入误差。为此,我们作了一些试验,探讨了套类试件直接测定HRC的可行性。这在工厂实际生产检验中具有一定实用价值。一、了解弯曲变形对HRC影响的一般试验试验使用新近鉴定合格的HRC-150洛氏硬度计(天津津东厂生产)。选用不同尺寸(以得到不同变形量)和不同硬度等级(经
Set of samples to determine the cylindrical surface HRC, in order to avoid the impact of bending deformation on the hardness value, often using special support platform, or to destroy the workpiece sampling determination. Both methods are inefficient and costly. The use of special support table due to contact problems tend to introduce errors. To this end, we made a number of experiments to explore the feasibility of direct determination of HRC by a set of specimens. This has practical value in the actual production inspection of the factory. First, to understand the impact of bending deformation HRC general test The use of newly qualified HRC-150 Rockwell hardness tester (Tianjin Jin Dong plant production). Choose different sizes (to get different deformation) and different hardness levels (after