| 1. | Uniform carburized layer
均质渗碳层 |
| 2. | Measuring retained austenite of carburize layer of low carbon alloys with x - ray diffraction method
射线衍射法测定渗碳钢中残余奥氏体 |
| 3. | The metal carburized layer depth is one of the major technical parameter to evaluate the quality of carburized components
渗碳层深度是衡量渗碳件质量的主要技术指标之一。 |
| 4. | It serves the purpose of measuring the hardness of ferrous , non - ferrous metals , hardmetals , carburized layers and chemical treating layers
该硬度计适用于黑色金属、有色金属、硬质合金、渗碳层和化学处理层的硬度测定，曾两次荣获上海市优质产品称号。 |
| 5. | It serves the purpose of measuring the hardness of ferrous , non - ferrous metals , hardmetals , carburized layers and chemical treating layers
5型布洛维光学硬度计适用于黑色金属、有色金属、硬质合金、渗碳层和化学处理层的硬度测定，曾两次荣获上海市优质产品称号。 |
| 6. | However , many factors may affect eddy current testing and it is hard to classify them , and how to extract information which indicating carburized layer depth in signals is very important
但影响涡流检测的因素很多，检测结果不尽如人意，如何提取信号中的反映渗碳层深度的信息非常重要。 |
| 7. | Abstract : the effect of different carburizing programs on the microstructure and thick of carburized layer of screw bevel gears has been studied , meanwhile the fatigue life of these gears has also tested
文摘:本文研究了不同渗碳淬火工艺对螺伞齿轮组织及渗层深度等影响，并对螺伞齿轮进行了台架疲劳测试。 |
| 8. | With the software of simulating low - pressure vacuum carburizing process and computer control system , carburizing process parameters are controlled accurately . the minimum error of carburizing layer depth , the optimal distribution of carbon concentration in carburizing layer and the minimum distortion are insured
均匀布置鼠笼状加热元件和多组渗碳气氛喷嘴，并对渗碳参数进行精确控制，可保证零件最小的渗层深度误差最佳的渗层碳浓度分布。 |
| 9. | It is shown from results that increasing carburizing time further in the normal technology can not obviously deep the carburizing layer , but can cause nonmartensite microstructure at the bottom of the gear and coarse grain across the gear , these will heavily decrease the fatigue life of the gear
结果表明：在正常渗碳淬火工艺基础上再延长渗碳淬火1小时，齿轮渗碳层深度变化不大，但其齿根局部表面处有非马组织，且晶粒尺寸易产生异常长大现象，从而致使台架疲劳寿命明显下降。 |
| 10. | This paper is introduced bp neutral network character , algorithm , designing principal on its construction and the designed product . input features extracted by the way described above into a bp neutral network , and using it to classify seven type of different carburized layer depth specimen . the result is indicated , using wavelet packet method to extract features and bp neutral network to classifying , is effective and precise to classify different metal carburized layer depth . it is useful and economical
本文介绍了bp神经网络的特点、算法和其结构的具体设计方法和设计结果，并将小波包提取的特征值输入到bp网络，对7种不同渗碳层深度的试件进行分类，实验结果表明，小波特征值提取和bp神经网络分类器相结合，可以实现对不同渗碳层深度的分类，效果良好，精度较高，有一定的实用价值。 |
