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- By means of multi layer and multi pass lap surfacing, the surfacing layer with big thickness and area can be acquired. 采用多层焊和多道搭接工艺可获得大厚度、大面积堆焊层。
- The hot deformation activation energy of KFC copper alloy during hot deformation is 288.79 kJ/mol. 其热变形激活能Q为288.;79kJ/mol;
- The hot deformation behavior of low nickle electric heating alloy was studied by means of hot simulating technology. 利用热模拟技术对铁基低镍电热合金的热变形行为进行了试验研究。
- A simulation and analysis has beencarried out by using DEFORM3D for hot deformation process of finish-form punch with different configuration. 利用DEFORM3D系统，模拟研究了不同终成形凸模结构对套管叉热成形影响的规律。
- The hot deformation activation energy Q is 469.03kJ/mol and the hot deformation equation is derived based on the experiments. 32Mn-7Cr-1Mo-0.;3N奥氏体钢的热变形激活能Q值为469
- Di-rect quenching of work piece through precooling can reduce hot deformation and improve strength and toughness of the core, It prevents ... 结果还表明，工件预冷直接淬火可以减小热处理变形，还能提高心部强韧性，防止表面局部氧化脱碳，有利于提高点接触疲劳寿命。
- During hot deformation of metal, a chain of complex changes such as grain growth and recrystallisation will happen on its microstructure. 金属在热成形过程中微观组织发生诸如晶粒长大、再结晶等一系列的复杂变化,会直接影响加工过程与产品的力学性能。
- The viscid-plastic FEM is suitable to solve the question of metal hot deformation or strengthen indistinctive soft metal deformation. 而粘塑性有限元法适用于金属热变形或强化不显著的软金属变形。
- The microstructure evolutions of Al-Si-bearing low carbon steel during multi-pass hot deformation and subsequent continuous cooling process were studied. 利用热模拟试验研究了铝硅合金化低碳钢多道次变形及连续冷却过程的组织演变。
- BP neural network model for the study of constitutive relationship of the BT20 titanium alloy during hot deformation is constructed by the MATLAB program. 采用MATLAB程序建立BT20钛合金高温变形时流变应力的神经网络模型,利用该模型对其他一些热力学状态下材料的流变应力进行了预测。
- It benefits to decrease the engineering cost and to debase the technical crisis by the polarizer composed of amplifier Nd 3+ :glass slabs located with the Brewster angle in large scale multi passes laser facility. 用布儒斯特角放置的多张放大器片作大口径电光开关的检偏器 ,不仅有利于光束的传输 ,而且可以有效降低装置的工程造价和难度。
- The effects of rolling and cooling process on microstucture and property of C-Mn steel plates treated with Al-Ti-CaSi combined addition after hot deformation on stress relieving operation have been investigated. 本文研究轧制和冷却工艺对Al-Ti-CaSi复合处理的C-Mn钢板,在热成型或消除应力处理后组织和性能的影响。
- The flow stress values decrease with increasing deformation temperature and/or decreasing strain rate,which can be represented by a Zener-Hollomon parameter in an exponent-type equation with the hot deformation activation energy Q of 236 kJ/mol. 在实验范围内;流变应力值随着应变速率减少和变形温度升高而降低;可用Zener-Hollomon参数的幂指数关系描述合金的流变应力行为;其变形激活能Q为236 kJ/mol.
- Three-layer passes hot pressing of synthetic resin glue and become, the wearability of this kind of floor and dimension stability are better. 三层通过合成树脂胶热压而成，此类地板的耐磨性与尺寸稳定性较好。
- The hot deformation behaviors and microstructure evolution of 6Cr21Mn10MoVNbN steel were systematically analyzed by thermomechanical compression test and hot rolling solid solution test, and the best technical parameters were obtained. 通过热模拟压缩试验和热轧固溶试验系统分析了6Cr21Mn10MoVNbN钢的热变形行为和显微组织演变规律,获得了最佳的工艺参数。
- The influence of hot deformation on diffusional transformation kinetics of aust- enite was studied for 40Cr steel. The deformation of austenite above its recrystalli- zation temperature may accelerate the subsequent diffusional transformation. 本文在40Cr 钢上研究了热变形奥氏体状态对珠光体转变运力学的影响,所得结论如下:1)在本文的试验条件下,高温形变有促使珠光体转变的作用;
- Based on physical metallurgy microstructural evolution rule and experiential expressions, calculation module of coupling microstructural evolution of metal hot deformation process had been developed. 根据物理冶金组织演变规律和经验公式，开发了金属热变形过程耦合组织演变的计算模块。
- Pupils who pass the test will be promoted to the next higher grade. 小学生只要考试及格就会升到高年级。
- A bowl of hot chicken soup is good for you. 喝一碗热鸡汤对你有好处。
- The hot weather has soured the milk. 炎热的天气使牛奶变酸了。
