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- impact hardness testing 冲徊度试验
- impact hardness testing machine 冲击硬度试验机
- impact hardness test 冲击硬度试验
- Indentation methods of hardness testing comprise two principal groups. 压痕法测定硬度包括两大类。
- The weldability of EH40 ship steel plate by submerged-arc welding with high heat-input was studied by the tensile test, impact test, hardness test and microstructure. 通过拉伸、冲击、硬度力学试验和接头微观组织分析,对EH40船板钢大热输入埋弧焊的焊接性和接头性能进行了试验分析。
- This is a hard test in which the class all make low scores. 这是一次较难的测试,班上所有的学生都得了较低的分数。
- No abnormity was found in the metallographi cal analysis and hardness test. 金相和硬度分析未发现明显异常组织和硬度分布。
- Scratch Hardness Test Using a Diamond Stylus on the Micro-Tribometer mod. 便条硬度试验用钻石笔在微摩擦国防部。
- It test the properties of grade X80 steel and its trial-manufactured spiral submerged arc welded pipe produced with tensile test,bending test,hardness test,series temperature impact toughness,DWTT etc. . 对X80级热轧板卷及用其所试制的螺旋埋弧焊管的拉伸、冷弯、硬度、系列温度冲击韧性、DWTT等性能进行了测试。
- We passed the GESE band 4 and we will welcome the new and hard test. 我通过了绿色通道英语口语4级的考试,我们还要迎接新的难的考试。
- 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。
- Analysis was performed on the crack zone by macroscopical, microscopical and hardness testing. 采用宏、微观分析方法对断裂原因进行了分析。
- 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。
- Through hard tests we are accepted in the world of work. 经过苛刻的测试终于获得了工作。
- The failed keyway broach was analysed by chemical analysis, hardness testing and metallograph-ic examination. 对断裂单键拉刀进行了化学成分分析、硬度测定和金相检验。
- Is hardness tested on a surface that has been ground to remove decarburization? 硬度测试是不是在磨去脱碳层的表面上进行?
- And the measured uncertainty in Vickers hardness testing was evaluated according to procedure without bias method and procedure with bias method. 利用无偏差估计方法和考虑硬度计偏差的方法对维氏硬度试验中的测量不确定度进行了评定。
- 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。
- The results of the hardness test prove the effect ot secondary hardening in cau- sed by forming M_(23)C_6 carbides. 高温硬度试验证明二次硬化效果是由 M_(23)C_6碳化物形成引起的。
- The characteristic of knoop hardness test method for metallic materials are introduced. 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。