Finite element calculation for test of case - depth using eddy current in carburizing 涡流检测渗碳层深度中磁感应强度的计算
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。
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。
Finite element preprocessor , eddy current electromagnetic field calculation , the postprocessor and the visualization processor were integrated together in the software system , and good graphic user interface was also offered 该系统将有限元前处理、涡流电磁场计算、渗碳层深度逆问题求解及计算结果的可视化处理结合起来,提供了良好的用户界面。
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。
渗碳: gasification; acieration; ac ...层: I storey; tier; stratum深度: degree of depth; depth渗碳层的深度: case depth渗碳硬化层深度: carburated case depth钢的脱碳层深度测定法: determination of depth of decarburization of steel渗碳层: carbureted layer; carburized case; carburized layer; cementation zone表面渗碳层: carburized case厚渗碳层: heavy case均质渗碳层: uniform carburized layer深渗碳层: heavy case渗碳层厚度: carburized case depth; depth of case采油层深度: producing horizon淬硬层深度: depth of hardening zone; depthofhardeningzone地层深度: depth of stratum分层深度: depth of seam division耕层深度: to oil depth; topsoil depth混合层深度: layer depth矿层深度: producing depth熔化层深度: penetration depth; penetrationdepth渗层深度: depth of penetration声层深度: sonic layer depth声学层深度: sonic layer depth生产层深度: producing depth剩余层深度: residual depth