heat conductivity

The thermal source of the motor, the equivalent coefficient of heat conductivity for stator coil and coefficient of heat radiation in the air duct and airgap by forced air circulation are analyzed.

建立了三相异步牵引电机温度场分析的有限元模型，分析了电机的发热源、定子线圈等效导热系数、强迫通风冷却条件下通风沟内和气隙内气流的散热系数。

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The Specific heat volum, heat conductivity, thermal diffusion ratio increase and linear expansion coefficient decrease with an increase of graphitization degree of pitch derived carbon.

随着沥青炭石墨化程度的增大，比热容、导热系数、热扩散率都增大，而线膨胀系数减小。

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Latent heat thermal storage has the advantage of large heat storage quantity per unit weight or volume and good chemical stability and safety, but when the phase changes the heat conductivity is poor at the interface of liquid and solid.

潜热储热一般具有蓄热量较大，化学稳定性好等优点，但相变化时液固两相界面处的传热效果差。

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In this paper, 10 terrestrial heat flow values have been derived from logging data of 65 wells samples, and heat conductivity from 43 core sam-ples.

本文通过实测65口井温曲线和43块岩心样品的热导率，得到10个大地热流值的资料。

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Experiment Study and Design of a Heat Conductivity Test Desk

非、准稳态法综合导热实验台的设计与实验研究

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Effects of Porosity on Effective Heat Conductivity of Highly Porous Media of Al_2O_3

孔隙率对Al2O3高孔隙率多孔介质EHC的影响

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However, it is also substance with low heat conductivity, cold flow and great thermal expansion coefficient.

聚四氟乙烯具有很多优良的特性, 耐腐蚀,自润滑,不粘贴.但也存在传热差, 热膨胀系数大,有冷流等缺点.

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The higher the grade of palygorskite, the lower its heat conductivity.

经研究坡缕石品位越高，导热系数越小；

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Material technics: aluminium alloy of high heat conductivity and patented configuration technics.

材质工艺: 采用导热性能极高的铝合金及专利结构技术设计生产.

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Measurement of the Coefficient of Heat Conductivity of Metal with Temperature Wave by Microcomputer

微机辅助温度波法测金属的导热系数

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And further the effects of Knudsen number, Prandtl number, thermal conductivity, thermal accommodation coefficient and gas pressure on the gas gap conductance are discussed, which provides the quantitatively theoretical solutions to the interfacial gap gas heat transfer in the real contact conditions.

并对影响接触界面间隙热导的克努森数、普朗特数、热导率、适应系数、压力等参数进行了分析，为实际情况下接触界面的传热提供了理论基础。

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Many factors are considered in the software, such as the non consistancy of tire materials, the anisotropy of heat conductivity in rubber composite, the accompanying reactive heat build up of rubber during tire vulcanization and the real temperature rising history of tire during vulcanization.

该软件考虑了轮胎材料的非均质性、橡胶基复合材料传热性能的各向异性、轮胎硫化时橡胶材料伴有的反应生热以及轮胎硫化的实际加温历程。

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This paper shows a new method ( temperature wave method) of measuring coefficient of heat conductivity of metal, experiment procession is automatically controled by microcomputer, imitative picture is drawed, coefficient of heat conductivity of cuprum is measured.

介绍测量金属导热系数的一种新方法&温度波法，利用微机可实现实验过程的自动控制，画出温度波传播的仿真图，测出金属铜的导热系数。

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Copper plating technology is widely applied to the field of electronic materials manufacturing for the good electrical conductibility, heat conductivity and ductility of copper deposit.

电镀铜层具有良好的导电、导热、延展性等优点，因此，电镀铜技术被广泛应用于电子材料制造领域。

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The coefficient of heat conductivity a and the specific heat at constant pressure C p are important coefficients.

导温系数a及定压比热Cp是热工计算中的两个重要参数，其数值测算的精度如何直接影响到许多相关专业。

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Research on Relationship between Hackneyed Heat Insulator Density and Coefficient of Heat Conductivity

常见保温材料密度与导热系数关系的研究

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The foam metal nickel has the advantage of good heat conductivity and the molten salt has the advantage of large heat storage quantity per unit weight or volume.

泡沫金属镍具有传热性能好，熔融盐具有蓄热量大、化学稳定性好等优点。

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Materials of PPS possessing high heat conductivity, dimensional and metering accuracy were described.

介绍了高导热 、 高尺寸精度及计量精确的PPS材料.

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The diagnosis results show that air mass flow sensor begrime seriously and lead to bad heat conductivity and weak signal due to severe deposits and with a large amount of air flow, thus make gas mixture rare and lead to trouble.

诊断分析及修复结果表明，该车装备的旁通道热线式空气质量流量传感器因严重积垢使热传导性变差，导致大流量时其输出信号偏低，从而使混合气过稀是导致上述故障的原因。

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Moreover, the influence of heat pipe length on the thermal resistance and the coefficient of equivalent heat conductivity were discussed. Results show the lengths of evaporator section and condensation section play a decisive role on the overall heat transfer performance.

讨论了热管长度变化对热管热阻和当量导热系数的影响，结果表明热管蒸发段和冷凝段的长度对热管的整体传热性能起决定性作用。

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With the high conductivity, excellent chemical resistance and high tensile strength and heat resistance, silver-coated glass fiber has a wide application in conductive polymer material.

由于同时具有银的优异导电性和耐化学性以及玻璃纤维的高抗拉强度和耐热性，镀银玻璃纤维在复合型导电高分子材料中具有广泛的应用前景。

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Noctua solders the heat pipes to the cooling fins in order to assist the heat conductivity.

为了更高热传导性能,Noctua对冷却片焊接热管.

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With actual measurement, some thermodynamic parameters such as bulk specific heat volume C ρ, coefficient of heat conductivity λ, and coefficient of heat diffusion H were obtained.

对计算中用到的材料参数如体积比热容Cρ、导热系数λ和热扩散系数H进行了实际测量和校正。

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This constant k actually is called the heat conductivity.

这个常数k就叫做热传导系数。

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Where sells measures the diamond the heat conductivity meter?

哪里卖测钻石的热导仪?

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Upon this premise, the temperature response of semi-infinite coal wall and the heat conductivity of coal wall are studied, and it is concluded that the front coal wall temperature and thermal flow change periodically in unsteady state simple harmonic mode with time.

以此为前提，研究了煤壁的半无限体温度响应及煤壁导热传递，并得出气化炉前方煤壁温度及热流随时间发生周期性非稳态简谐式变化的结论。

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An application of the theory of thermal wave: dynamic measure of the heat conductivity of a good thermal conductor

热波理论的应用&良导热体热导率的动态法测量

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Characteristics: Material technics: aluminium alloy of high heat conductivity and patented configuration technics.

产品特点材质工艺: 采用导热性能极高的铝合金及专利结构技术设计生产.

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Specific heat volum, heat conductivity, thermal diffusion ratio and linear expansion coefficient were tested.

测试了沥青炭试样的比热容、导热系数、热扩散率和线膨胀系数。

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The coefficient of heat conductivity of every parts and coefficient of the heat transfer of all boundaries in the motor is analyzed and modified. And the heat source of the motor temperature field-the loss and its distribution in the motor.

分析了电机内的各导热体的导热系数和各边界面的散热系数并予以修正，同时研究了电机内温度场的热源&电机的损耗及其分布。

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