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- According to the calculated result,the metal flowing law,von Mises stress and the formed outer diameter of involute spline were forecasted; 根据数值模拟的结果,讨论了齿形误差及其成因;揭示了滚轧过程中金属流动规律和应力变化情况;
- Metal flowing laws 金属流动规律
- For formation procedure of asymmetry aerofoil component with high rib and thin web, it is difficult to examine laws of fill pattern and laws of metal flow. 在非对称高筋薄腹板复杂结构锻件的成形过程中,由于变形程度很大,金属流动情况异常复杂,容易产生回流、折叠等成形缺陷,因此对预制坯的体积分配、润滑以及模具的设计等要求很高。
- Stress level is estimated at tens of MPa based on existing flow laws. 依据现有的流变学定律估算的流变应力应该在几十兆帕以上。
- Stress and metal flow in steel tube during sizing process were analyzed. 分析了定径过程中钢管内金属流动和弹复行为。
- The metal flow velocity can become uniformity by optimizing the die structure. 通过对模腔结构的优化设计,使金属流动趋于均匀。
- When bound conditions are known, it can simulate metal flowing and wrinkling process of the noncontact region in sheet metal forming. 在给定边界条件的情况下,该软件能模拟板料冲压成 形过程中悬空区起皱过程,能比较准确地预测悬空区金属的流动状况 。
- By means of the numerical solution to deal with the systematical equations, the important flow laws to actual engineering are obtained. 通过数值求解分层流的数学方程,得到了对工程实际应用有重要价值的流动规律。
- Metal flow is a very inhomogeneous process during backward extrusion of complex box body, Relative shape and size of the blank is a key factor which affect metal flow. 摘要复杂盒形零件的反挤压是一个极其不均匀的流动过程,坯料的相对形状及尺寸是影响金属流动的关键因素。
- In order to study the flowing law of inert gas in the roadway, a description of inerts-pumping simulation tests is provided in the paper, and the result shows that inert gas pr... 试验结果表明,充注惰气使火区气体呈非稳定的紊流扩散流动,使火区快速进入熄灭、惰化状态。
- The channel through which molten metal flows into a shaped cavity of a mold. 闸道熔化的金属液流入模型型腔的通道
- With the research of multiphase vertical flow law and wellhead choke law, the new oil wells productivity can be predicted. 同时结合油井多相垂直管流规律和嘴流规律的研究对丘陵油田新井投产方案进行了单井预测。
- The liquid metal flow during mould filling in bottom gating system and its influence on the casting quality are introduced emphatically. 着重介绍了液态金属在底注式浇注系统充填型腔时的流动,以及其对铸件质量的影响。
- According to the structure and process parameters of the tundish in a specific steel plant the hot metal flowing process and the retention conditions are mathematically simulated. 根据某厂连铸中间包的结构和操作工艺参数,采用数学模拟的方法研究了连铸中间包的钢水流动过程以及停留状况。
- The concept of slip ratio showing two phases slippage effects is proposed,a multiparameter and nonlincer water correction model has been established on flow law in reservoir. 研究了反映两相滑脱效应的滑动比理论,从流体流动的规律出发,建立了多参数、非线性的理论含水率校正模型。
- The metal flow during indirect extrusion is analyzed,and the influence of billet machining on the quality of aluminium tube is also investigated. 考察和分析了反向挤压时金属的流动特点,以及铸块表面质量、尺寸精度对管材质量的影响。
- Grid-experiments are performed to investigate metal flow and deformation in the shear-extrusion process of tubular components with branches. 通过网格试验研究分析了枝叉管形件剪-挤工艺过程的金属流动情况及其变形规律;
- The metal flow behviors of Pb sample was studied in continuous variable cross-section recycled extrusion using grid measuring system. 采用铅试料,用网格法实验观测连续变断面循环挤压法挤压时金属的流动特征。
- The conditions of the stress &strain and the characteristics of the metal flow in the forming process of the TSPP caps are researched. 研制了一种微波感应式配电线路防盗在线监测系统,简述了其系统构成、技术特点和应用效果。
- The air entrapment of the liquid metal flow in the shot sleeve during the slow shot phase is one of the factors resulting in this kind of defect. 气孔是压铸生产中的常见问题,导致这一缺陷的原因之一就是在慢压射过程中压室内的金属液流动卷入了气体。