This standard provides the requirements for a Brinell testing machine and the procedures for performing Brinell hardness tests.
本标准同时规定了对布氏硬度计的要求，以及进行布氏硬度试验的步骤。
In addition, two hardness tests showed that the natural aging has great influence on the hardness distribution in the two alloys.
此外，两次硬度试验表明，自然时效对两种状态合金的硬度分布存在影响。
The hardness tests on welding joints prove this by showing that the hardness reduces in fusion area, and increases slightly in weld zone.
通过对焊接接头的硬度检测，发现熔合区硬度下降，焊缝区略有上升。
LX-A rubber hardness tester is widely used in low hardness of plastic, all kinds of rubber, multi-resin, leather, wax and other hardness tests.
LX - A型橡胶硬度计广泛应用于中低硬度塑料、各类橡胶、多元脂、皮革、蜡等的硬度测试。
The correctness of those conclusions is proved by theresults of metallographic observations and hardness tests of the dissimilar steel welded joint ofCr30Ni9/high carbon steel.
利用异种钢接头的金相观察和硬度测试结果，验证了所得结论的正确性。
It presents the results of wear tests of wheels on six rails with different hardness.
本文报道了六种钢轨和不同硬度车轮样品的磨损试验结果。
Then hardness of coatings and substrate was measured. By means of bend-rotation fatigue tests, fatigue strength of coating and uncoating specimens was compared after hardening and tempering.
然后测量涂层和基体的硬度，并通过采用旋转弯曲疲劳试验比较涂层试样与未涂层试样的疲劳强度。
Fatigue tests were performed using the 3d dumbbell specimens with different levels of maximum strain and hardness.
使用具有不同最大应变和各种硬度的3d哑铃状试样进行了疲劳试验。
The hardness data of quenched steel under different conditions were collected utilizing austempering tests.
利用等温回火实验，采集了淬火钢在不同条件下回火时的硬度数据。
On the basis of a series of tests, the optimum paste was obtained and the way to enhance hardness of the layer was studied.
在大量试验的基础上，优选出了渗铬膏剂的配方，并且研究了提高渗铬层硬度的方法。
Tribological tests reveal that the friction coefficients of the nitrided samples are greatly reduced, and the surface hardness is remarkably improved at the same time.
摩擦学测试表明渗氮样品不仅摩擦系数大大降低了，而且表面硬度也获得了显著提高。
The performance tests show that the property of the film, such as hardness, impact resistance and gloss, are better than those of the solvent-base alkyd melamine coating.
性能测试表明：涂膜的硬度、耐冲击性、光泽等性能优于溶剂型的氨基醇酸树脂涂料。
The tests of adding antimony to increase hardness of guide way of large beds was described and the results of its application in production was introduced.
介绍加锑提高大型床身导轨硬度的试验情况和生产应用结果。
Results of hardness and corrosion tests show that the aluminum oxide ceramic film is of high hardness and excellent alkaline corrosion resistance.
硬度试验和腐蚀试验表明：该膜硬度高、耐强碱腐蚀性强。
Results of hardness and corrosion tests show that the aluminum oxide ceramic film is of high hardness and excellent alkaline corrosion resistance.
硬度试验和腐蚀试验表明：该膜硬度高、耐强碱腐蚀性强。
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