Analysis on International Contrast Test of Brinell Hardness COMPARATIVE EXPERIMENTAL ANALYSIS OF CONCRETE STRENGTH INSPECTION TECHNOLOGY 布氏硬度国际比对试验中的几个问题混凝土强度检测技术的对比试验分析
Realization of the Measurement System for the Indentation Diameter of Brinell Hardness Test Using Image Measurement 用塞勒硬度试验器试验布氏硬度试验压痕直径的图像测量及实现
Evaluation of Measurement Uncertainty in Brinell Hardness Test for Metallic Materials 金属材料布氏硬度测量结果不确定度的评定
Evaluation About Uncertainty of the Measurement During Brinell Hardness Test 布氏硬度试验中测量不确定度的评定
It can be applied to determine the Brinell hardness for ferrous metal and non-ferrous metal. 适用于黑色金属,有色金属的布氏硬度测定。
Unless otherwise indicated by employer, Brinell hardness limits apply to welds after pwht. 除非业主另有说明,布氏硬度限制适用于经焊后热处理的焊缝。
Based on the analysis of the features of Brinell hardness test indentation image, the applied image segmentation algorithm based on the histogram of the indentation image is put forward. 在分析布氏硬度试验压痕图像基础上,提出基于属性直方图的图像分割算法。
The influences of the duration of polishing and the coarseness of surfaces on the readings of the Brinell hardness measurement of metallic materials are discussed in this paper. 本文讨论抛光时间和表面粗糙度对金属材料布氏硬度测试数据的影响。
Hardness tests other than Brinell may be used if the values obtained can be equated to the Brinell hardness numbers, and the proposed equipment and procedures have received prior employer approval. 如果所得值可等同于布氏硬度值,且拟定设备和程序获得业主事先批准,则可采用硬度试验,而不是布氏硬度试验。
Evaluation on uncertainty in measurement for metallic Brinell hardness reference blocks 标准金属布氏硬度块测量不确定度评定
In order to revise national standard of Metallic Materials-Brinell Hardness Test, the Brinell hardness numbers of specimens with different thickness are determined. 为修订金属布氏硬度试验方法国家标准,测定了不同试样厚度的布氏硬度值。
Verification of Brinell hardness testers GB/T6269-1997布氏硬度计的检验
It was found that the surface roughness is significant in Brinell hardness testing, but has little influence on Rockwell hardness. 结果表明,表面粗糙度对布氏硬度值有重要影响,而洛氏硬度值与表面粗糙度关系不大。
Metallic materials-Hardness test tables of Brinell hardness values for use in tests made on flat surfaces These adjectives are applicable to surfaces without irregularities in the form of elevations or depressions. 金属材料--硬度试验--平面试验用布氏硬度值表这些形容词表示高度或深度形式较规则的平面。
The Development of Inspection and Control System Used in Brinell Hardness with SCM 布氏硬度计的单片机测控系统的研制
Method of measurement uncertainty evaluation for Brinell hardness test results was introduced in the present work. 文章介绍了布氏硬度试验中测量结果的不确定度评定方法。
Method for measurement on Brinell hardness of hot rolled plate 热轧中厚板布氏硬度值测定方法
An investigation was made on brinell hardness test with a universal material testing machine. 根据布氏硬度试验的原理,提出一种在万能材料试验机上进行布氏硬度试验的方法。
Low temperature aging for die casting Al alloy under appropriate technological condition can increase average strength and Brinell hardness more than 10% and 30% respectively. 对压铸铝合金进行低温时效,在最佳工艺条件下,合金的平均拉伸强度提高10%以上,布氏硬度提高30%以上。
The test results shows that there is a linear relationship between Brinell Hardness and the machinability of cast iron with homogeneous microstructure or tiny carbides. 经测试发现,铸铁的组织均匀和碳化物细小时,其布氏硬度与机械加工性能之间呈线性关系。
Effect of Specimen Thickness on Brinell Hardness 金属试样厚度对布氏硬度值的影响
The effect of low temperature thermomechanical treatment on precipitation kinetic, mechanical property and fracture morphology, as well as the influence of aging time on tensile property and fracture morphology was studied by means of metallography, Brinell hardness test, tensile test, DSC and TEM. 采用金相、布氏硬度、拉伸、DSC以及扫描电镜等研究手段研究了低温形变热处理对时效析出动力学、力学性能和拉伸断口的影响,以及时效时间对拉伸性能和拉伸断口的影响。
When the volume fraction of carbon fiber is 2%, The Brinell hardness, tensile strength, impact toughness of C/ TZM composite are optimum. 碳纤维体积分数为2%时,C/TZM复合材料的布氏硬度、抗拉强度和冲击韧性的力学性能最优。
The results showed that the relative density and Brinell hardness decreased while the electrical resistivity increased with the increase of graphite content. 研究发现,随着复合材料中石墨含量的增多,材料的相对密度、布氏硬度值降低,电阻率升高。
The increase in the content of particles, pressure and cooling rate, all of which had the same influence on decreasing average grain size of remelted materials, improving the compressive strength and Brinell hardness number. 颗粒含量的增加、压力的增大及冷却速率的提高均使重熔后的复合材料晶粒细化,因而使材料抗压强度和布氏硬度得到明显的改善。