导热

The light weight castables have low density, low thermal conductivity, high strength,good acid resistance and alkali resistance. They are suitable for middle and low temperature furnace linings, ceiling and mobile coover.

本公司生产的各种轻质耐火浇注料，具有容重轻、导热系数小、强度高、整体性强、气密性均匀，并有耐酸、耐碱作用，适用于中、低温热工设备的炉体、炉墙、炉顶和活动炉盖，经现场浇注后，使保温层变成整体，保温性能增强，是一种良好的新型节能材料。

There is a certain relationship between thermal conductivity and density of corkboard.

。。 一、刚画软木砖是低温绝热材料，它的导热系数是其热物理性能的主要指标，也是设计围护结构和其池热工计算不可缺少的主要参数。

Corkboard ; Thermal conductivity ; Density

的导热系数与其容重的关系，如图1¨。

Measurements of sources at cryogenic temperatures pose special problems since the connections between the sample in the cryostat and the voltmeter are often made of metals with lower thermal conductivity than copper, such as iron, which introduces dissimilar metals into the circuit.

测量低温环境下的源时可能会出现一些特殊的问题，因为连接低温条件下的被测样品和电压表时常常要使用一些导热系数比铜低的金属，例如铁等。这样就会在电路中引入不同种类的金属材料。

The results show that the ingather of tungsten in the composites using internal feedstock injection is higher than that of the composites using external feedstock injection. For the composites using IFI method, the influence of input power on the copper oxidation is not evident, while more and more cuprite (Cu2O) is detected with the increasing of input power for the composites using EFI method. The thermal conductivity of WCu composite is lower than the theoretical value by ROM.

结果表明，在内部送粉条件下，复合材料中钨的收得率要高于外部送粉条件下复合材料中钨的收得率；在内部送粉条件下，功率对铜氧化的影响并不明显；而在外部送粉条件下，随着功率的提高，铜的氧化明显增多；由于氧化物和孔隙等的存在，利用大气等离子喷涂工艺制备的复合材料的导热率远远低于根据混合法则计算的理论值。

Finally, the shape factor for an underground vertical cylindrical surface and the designing method of the well heat pump is introduced.

第七章从理论上给出了土壤中竖直圆柱导热的形状因子，并以此为依据初步探讨了井水热泵的设计方法。

In the School, there is a high-level experiment research center furnished with the atomic absorption spectrophotometer , comprehensive thermal analyzer, in-situ high temperature and high resolution SEM, in-situ high temperature XRD, RAMAN, ICP, FTIR, AFM, CHN, laser particle analyzer, GPC, dynamic mechanical analyzer, laser flash thermal conductivity determinator , high temperature graphite furnace , PECVD, magnetron sputtering furnace, etc.

学院建设具有高水平的实验研究中心，拥有ICP、DSC、高温原位HRSEM、、高温原位XRD、RAMAN、激光粒度仪、GPC、CHN、DMA、孔径与比表面测定仪、激光闪光导热率测定仪、高温石墨炉、真空热压炉、PECVD、磁控溅射仪等仪器设备。

With the increase of oil temperature and immersion time,the danger of detonation propagation go up.

文章研究了不同型号的塑料导爆管在导热油和柴油中浸泡后传爆可靠性的变化。

Aluminium material has some good characteristics, such as light weight,good diathermancy,good electric performance and so on.

铝材具有质量轻、导热、导电性能良好的特点。

It builds the whole liquid-cooling system mainly by the design of the liquid-cooling decalescence boxes(improve its bottom material from aluminium alloy to pure copper, enlarge its volume, better cooling effects, and strengthen pressurization), by the operations of cooling effect about the heat exchanger worked by its temperature adjustability of the ribs(diffuse the heat fleetly owing to the excellent diathermancy of the material of the ribs ,make effective diathermancy owing to ribs outside areas, and drive the heat of the ribs away by the fans), and by the water pump made up of the piezoelectric ceramic with the excellent performance-no electromagnetism interference, little cubage, little noise, light exterior, light weight, low consume, high flux, replacing the mechanical pump.

在液冷散热器的研究中，主要通过对液冷吸热盒设计不断地改进(使吸热盒底部的材料从铝合金变为纯铜材料，其整个体积有所变大，但其散热效果明显变好，且密封性得到了极大地加强)，综合地运用换热器中肋片的壁面温度调节作用产生的散热效果(肋片材料优良的导热性，快速地扩散了热量：肋片较大的与流体接触的表面积，使传热更加充分，对流热阻大大减小；再利用风扇对肋片上的热量进行吹散)，利用性能优良的压电陶瓷泵(该泵机电性能稳定，具有无电磁干扰、体积小、噪音小、外型轻薄、重量轻、低能耗。、高扬程等优点。)代替机械泵作为驱动源，搭建了整个散热系统。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。