Heat resistant aluminium alloys have been used in the aircraft industry widely because of their attractive combination of light weight, low cost, heat resistance and corrosion resistance. 耐热铝合金由于具有低密度、低价格、良好的耐热和耐腐蚀性能,在航空、航天等工业领域得到了广泛应用。
Our ultimate goal is to study thoroughly the uniqueness and stability of reconstruction of the position of each point heat source, of its combination coefficient, and as well of the number of all the point heat sources. 我们的目的是要从理论上研究反演每个点热源的具体位置,该热源的组合系数,以及热源的个数N的唯一性和稳定性,并在此基础上,探讨数值反演的方法。
This article mainly introduces the heat shields made of non-metallic materials of vacuum heat-treatment furnaces as well as their characteristics of heat engineering and vacuum, offers an optimum combination with the structure and materials of those shields. 本文主要介绍了真空热处理炉非金属保温屏以及它的热工性能、真空特性,并提出最优结构和材料组合。
Based on the model of phase change heat conduction, a inverse problem method of combination of experiment and numerical calculation is developed to study the improvement of thermal conductivity when metal is added. 基于相变导热模型,提出一种将相界面运动的测试实验与数值计算相结合来求解有效导热系数的反问题法,对几种相变储能材料添加金属介质后导热系数的改善进行了研究。
Analytical Study of Heat Quantity of Three-type-coal Combination 三煤种配煤发热量的分析研究
Based on the results of the experiment, a FEM model for the heat transfer of the metallic honeycombed plate was established, which took the combination of heat conduction and radiation into account. 在试验结果的基础上,考虑传导和辐射传热的偶合作用,建立了该金属蜂窝平板传热的有限元分析模型。
The major contents are as follows: ( 1) According to the conservation of energy theory and the heat transfer theory, the heat transfer model of dam leakage is set up through the combination with the conservation energy equation and the heat transfer equation. 根据能量守恒原理、传热学理论,由能量平衡方程及热传导方程联合建立大坝渗漏传热模型。
In view of the operating principle and features of water heat pump units, the feasibility of using water heat pumps in hydropower stations is analyzed in combination with characteristics of hydropower stations, and then it puts forward the economical efficiency and feasibility applied in hydropower stations. 从水源热泵机组的工作原理及特点出发,结合水电站的特点,分析水源热泵在水电站应用的可行性,提出在水电站应用的经济性及可行性。
The first part of this paper concerns the application of the Rankine Rankine cycle on heat pump technique and presents the design of a reciprocating heat pump-heat engine combination device. 本文阐述了应用Rankine/Rankine循环构成热泵装置的经济合理性,并给出了往复式热泵-热机组的装置设计。
Heat transfer from barrel is the main energy resource for melting of polymer pellets in pitch reduced flight elements combination, so melting efficiency is very slow. 在减导程螺纹元件组合中,聚合物颗粒熔融的主要能量来源是机筒的热传导,故熔融效率较低;
There are new experimental results on the influence of the geometry of the bolt, the heat treatment of the thread, the preload and the combination of male and female partner upon the endurance strength of bolts under bending load. 本文研究受弯螺栓疲劳强度与螺栓几何形状、螺纹制造工艺、预紧力及配对螺纹之间的关系并取得新的结果。
In this thesis we present a class of inverse point-wise heat source problem of parabolic partial differential equation, whose source term is the linear combination of some Dirac distributions. 本文研究一类抛物型偏微分方程点热源反问题,其中,所讨论的抛物型偏微分方程的热源项与Dirac分布的线性组合有关。
Conclusion The procedure for heat treatment of Ti coating will affect the level of oxidation reaction on the surface of Ni-Cr alloy, and will change the level of combination between Ti and Ni-Cr alloy. 结论不同热处理过程通过影响氧化反应,改变金属钛涂层与镍铬合金表面的结合程度。
Y analysing energy-saving transformation of low heat value gas burning furnace and kiln, this paper discusses the combustion technologies of low heat value gas such as blast furnace gas, converter gas and combination gas. etc. 通过对以低热值煤气为燃料的炉窑和锅炉节能改造的实例分析,讨论了高炉煤气、转炉煤气及混合煤气等低热值煤气的燃烧技术。
Heat economic of the thermoelectricity combination and the benefit to environment protection mainly depend on principle thermoelectricity system's conjecture and choice of the main equipment, especially including a boiler style and its heat supply solution and parameters. 热电联产的热经济性和环保效益主要取决于原则性热力系统的拟定及主设备性能的选择,特别是锅炉和供热机组的类型和参数的优选。
The sublimation heat L_s and boiling point T_b of metals are an important scale for studying the combination energy of metals. 金属升华热Ls和金属沸点Tb是研究金属结合能等性质的重要标度。
Calculation of Heat Transfer in a Triple Tube Heat Exchanger of the Counter-flow 3-layer combination casing strength analysis and calculation 逆流式三套管换热器的传热计算三层组合套管强度分析与计算
With analysis, considers that heat pump and accumulation of electric energy heat supply is the direction of developing electrical power market, Energy conservation of residential buildings and the combination supply of cooling and heating by electricity is the national policy of sustainable development. 通过分析,认为热泵和电蓄能供热是开拓电力市场的发展方向,建筑节能和冷热电联供是可持续发展的国策。
Application of Cup Float Steam Trap and Heat Recovery of Condensed Water in Evaporation System the automatic discharge of condensate by using the combination of temperature control with time control instead of the steam trap for discharging the condensate in the press to decrease the steam consumption; 钟形浮子式疏水阀在蒸发系统中的应用取消硫化机冷凝水排放的疏水阀,实现由温度和定时控制相结合的冷凝水自动排放方式,节约蒸汽用量;
By the theory of heat radiation, the unevenness of irradiance on the plane paralleled to the heating devices of belt type, tube type, plate type, or their combination is calculated. 用辐射换热理论计算了长带状、管状、板状加热元件及由以上几种元件组成的组合件,在平行于加热元件的平面上的辐照度不均匀性。
Heat capacity of the lines in the analysis, the combination of transmission line parameters of the actual operating environment to get real-time line heat capacity, that is the real-time transmission line static thermal rating. 结合输电线路的实际运行环境参数,得到线路的实时热载荷能力,即输电线路的实时静态热定值。
Conventional heat treatment of low alloy martensitic wear-resistant steel is quenching and low-temperature tempering process, from which it can get tempered martensite structure which has a good combination of strength and toughness. 低合金马氏体耐磨钢的传统热处理工艺为淬火后低温回火,得到回火马氏体组织,具有良好的强度、硬度和韧性的配合。
With continual enhancement of the gasoline engine, heat transmission and thermal load of the cylinder block and cylinder head have become an important factor in engine combination performance. 随着汽油机的不断强化,缸体与缸盖的传热和热负荷已成为影响汽油机综合性能的重要因素。