If there is a large difference in the coefficient of expansion, there will be cracks in the ceramic layer or the phenomenon of exploding porcelain in the alternating heat and cold.
如果膨胀系数相差较大，在冷热交替的时候就会出现瓷层裂纹或爆瓷现象。
Copper and plastic coefficient of expansion, and, therefore, more close to the plastic used in electroplating electroless copper plating coating layer as conductive.
金属铜与塑料的膨胀系数比较接近，因此，在塑料电镀中常用化学镀铜层作为电镀的导电镀层。
Wood in the high temperature coefficient of expansion will obviously, consumer can carry on some simple wooden through the maintenance, prevent the "heatstroke".
木制品比如木门的膨胀系数在气温高的时候就会比较明显，消费者可通过对木门进行一些简单的保养，防止其“中暑”。
The properties of coatings. e. g. tensile strength, expansion coefficient, wear volume under given conditions and porosity, etc. were tested.
测定了涂层抗拉强度、膨胀系数、一定条件下的磨损体积、气孔率等性能。
If the valve body material can be welded, but very different thermal expansion coefficient, or changes in operating temperature range of a larger thread junction closure weld must be honey.
如果阀体的材料是可以焊接的，但膨胀系数差异很大，或者工作温度的变化幅度范围较大，螺纹连接部必须进行蜜封焊。
During the study we tried to lower the thermal expansion coefficient of cordierite by adding additives.
在本研究中，还试图通过添加外加剂来降低堇青石的热膨胀系数。
The theory and feasibility is analyzed, for measuring Linear Expansion Coefficient of high temperature material by moiré interferometry.
分析了激光云纹干涉法测量高温材料热膨胀系数的原理和可行性。
Designed to complete the composite coefficient of thermal expansion of the calculation and prediction functions.
设计完成对复合材料的热膨胀系数的计算和预测功能。
The some techniques of guide shaft and expansion excavation are improved for assure the successful construction and raise the safety coefficient.
为保证施工顺利进行，且提高安全性，对正反导井及扩挖系统进行了多项技术改进，提高了安全系数。
The color glaze of low firing temperature and low expansion coefficient, to match the glaze tile made from common clay, was prepared in lead borosilicate system.
采用铅硼硅熔决釉研制出同时符合普通粘土瓦坯的烧成温度低、热膨胀系数低这两个主要性能特点的釉料。
Measuring method for differential coefficient of expansion and the standard uncertainty is introduced as well.
同时介绍了微分膨胀系数的测量方法及其测量不确定度。
The metal flow rule of the expandable tubular is closely related with the friction coefficient and extent of expansion.
膨胀套管在膨胀时的金属流动情况与磨擦系数和膨胀幅度密切相关。
The color glaze of low firing temperature and low expansion coefficient, to match the glaze tile made from common clay, was prepared in lead borosilicate system.
采用铅硼硅系统，研制出具有低烧成温度、低热膨胀系数的色釉，用作粘土釉面瓦釉料，其外观、物理、化学性能均能满足质量要求。
The corresponding mathematic model has been established in accordance with the physical definition of the density and the expansion coefficient through formula derivation.
根据密度和膨胀系数的物理定义，通过公式推导，建立了相应的数学模型。
The analytical results show that the curing residual stresses of the twisted fiber composites in which there are different coefficient of thermal expansion due to curing can be decreased greatly.
分析结果表明：加捻纤维束构成的复合材料，由于纤维适当加捻，可以大大减弱纤维与基体各具不同的热膨胀系数而产生的固化残余应力。
The catalogue of transition-metals, thickness and the thermal expansion coefficient which influence the strength of the bonded places are studied as well.
同时还研究了过渡层金属的种类、厚度及线膨胀系数对接合强度的影响。
The variation of CHGR with depth is available from the calibration of the porosity, gas saturation of electric log interpretation of the reservoir and hydrocarbon gases expansion coefficient.
经储集层段测并解释孔隙度、含气饱和度及天然气膨胀系数等校正，可作出岩石含烃浓度随深度剖面变化的成果图。
This article gave the measuring principle, formula and method of waters expansion coefficient by using density value of pure water in different temperature.
利用不同温度下纯水的密度值，给出了水的体胀系数的计量原理、公式和方法。
Proceed from different heat coefficient of expansion of two different metals for thermal bimetals with dish shape, the calculation modul was given.
从碟形双金属片的两块不同金属的热膨胀系数出发，设计了计算模型。
And the influence of annealing temperature was also found to be caused by the expansion coefficient difference and martensitic transition.
晶化处理温度对因热胀系数差异带来的热拉应力因马氏体相变而致的相变压应力均有不同程度的影响。
Two methods are established to predict the thermal expansion coefficient of Unidirectional composite based on micro-mechanics.
基于细观力学方法建立了两种预测单向复合材料的热膨胀系数的方法。
The copper-clad invar sheet material prepared by use of said method has the low coefficient of expansion, good radiating capability, large capacitance and good electromagnetic screening effect.
利用本方法制备的覆铜因瓦片材，具有热膨胀系数低，散热性好，电容量大，电磁屏蔽性好；
This paper analyzes the factors that influence the measure of linear coefficient of expansion, so that the error of the experiment can be decreased.
对可能影响金属线胀系数测量的各个因素进行分析，以达到减小实验误差的目的。
The hydroscopic expansion coefficient of grains is an important physical parameter for prediction of bulk densities and study of internal stresses of grain kernel during adsorption and desorption.
湿膨胀系数用于预报谷物堆密度和研究谷粒应力裂纹产生原因等研究。
The effect of dielectric constant, dielectric loss factor, coefficient of thermal expansion (CTE)and characteristic impedance of substrate materials on properties of MMB are mainly discussed.
介绍了微波多层板所用基材的性能参数，重点阐述了材料的介电常数、介质损耗、热胀系数、特性阻抗对多层板性能的影响。
Thermal deformation temperature and liner expansion coefficient of the composite were decreased.
该复合材料的热变形温度有所降低，但线膨胀系数减小。
In addition, statistical and deterministic mathematical models are used for back analysis of equivalent temperature linear expansion coefficient based on the prototype monitoring data.
此外，基于原型观测资料，利用统计模型和确定性模型对碾压混凝土的等效温度线膨胀系数进行了反演分析。
The influences of lithia content on the melting temperature, mechanical properties and thermal expansion coefficient of low temperature frit were studied.
本文研究了氧化锂加入量对低温熔块的熔融温度、力学性能、热膨胀系数的影响。
The influences of lithia content on the melting temperature, mechanical properties and thermal expansion coefficient of low temperature frit were studied.
本文研究了氧化锂加入量对低温熔块的熔融温度、力学性能、热膨胀系数的影响。
应用推荐