气密性

我们分析其原因，发现气密性并不好，加热板处的胶水并不能保证密封性。

Then , we found that gas tightness had some problem , because gluewater of the heat copper of engine didn 't pledge gas-tightness .

本文首先提出了机油冷却器制造企业在气密性检测方面所面临的主要问题，并介绍了论文的框架结构。

As exordium , this first chart puts forward the main problem existing in the gas tightness detection process from the engine oil cooler manufacturing enterprises .

气密性高Bs合金及其在微波管中的应用

The Hermetic High Bs Alloy and Its Application in the Microwave Tubes

Air（初三适用）浅谈高大平房仓的气密性改造

Improvement of air tightness in large warehouse

基于BP网络的温度预测在高压气密性检测中的应用

The application of temperature forecast in high pressure gas tightness detecting based on BP network

MEMS器件气密性封装的低温共晶键合工艺研究

Study of low temperature eutectic bonding process for MEMS hermetic package

应用于MEMS气密性封装测试的微型湿度传感器的设计与制作

Design and fabrication of humidity sensor for MEMS hermetic package test

MEMS原子钟理论、设计及Cs/Rb气体盒气密性封装研究

Design of MEMS Chip - Scale Atomic Clock and Hermetic Packaging of Cs / Rb Vapor

本文研究了PM型混合电路铜功率外壳气密性失效问题，产品高温老化后，气密性可由10-8Pam3/s降到10-5Pam3/s。

The failure analysis of PM hybrid integrated circuit copper power shell has been made in the present paper .

壳体的无损检测和打压试验表明，铸件内部无明显缺陷；铸件的气密性检测一次性合格率达到了98%以上，满足GIS设备需求。

Nondestructive evaluation and bulge test show that produced shell of GIS , the qualified rate of gas-tight test has reached up to 98 % , which can fulfill the demand of GIS .

针对气密性较差的钢筋砼立筒仓，选择了AlP自然潮解环流熏蒸和PH3与CO2混合环流熏蒸两种技术。

Natural AlP deliquescence and PH 3 mixed with CO 2 circulation fumigations were chosen directly against the poor airtight in reinforced concrete silos .

与95%Al2O3瓷的铜封件具有良好的气密性、抗热冲击性能和高的封接强度，能够满足磁控管、行波管等制造要求。

The alloy-95 % Al_2O_3 ceramic seals using oxygen-free copper as solder possess with high sealing strength , good tightness and spelling resistance , and are sufficient for making magnetron , TWT , etc.

数据表明，ENR内胎的气密性与IR内胎的气密性相近，远优于NR内胎的气密性。

The results showed that the air retaining property of ENR tube was similar to that of IIR tube , but far superior to that of NR tube .

MDT在气密性检测及干燥处理装置设计中的应用

Application of MDT in design for the device of supplying the pressure or negative pressure gas source and detecting the gas tightness and dry processing

BOPP薄膜无色透明，表面有漂亮的光泽。与未拉伸薄膜CPP相比，BOPP力学性能更好，尺寸更加稳定，具有较好的耐热性，耐寒性和气密性。

Compared with CPP , BOPP has better mechanical behavior , more stable dimension , stronger resistance to low-temperature and high-temperature , and better barrier property .

应用苯并环丁烯（BCB）材料对硅片进行了圆片级低温键合，并研究了其在气密性封装工艺中的应用。

The characteristics of the wafer level low-temperature bonding with the benzo-cyclo-butene ( BCB ) material were studied experimentally .

气密性混凝土和JCL粘结剂在瓦斯隧道施工中的应用

The Development and Application of the Gasproof Concrete and JCL Interface Adhesive in Gas Tunnel Construction

EPDM可改善IIREPDM共混物的混炼和挤出特性，对硫化胶力学性能、老化性能影响不大，使气密性有所下降，在共混比达到40/60，共混物的渗透系数仍只为EPDM的1/4。

The introduction of EPDM can improve the mixing and extrusion properties but little influences in mechanical properties and aging properties , lowering the gas resistance of EPDM / IIR blend .

TPU高强度贴合布具有轻薄，防水，气密性好，耐磨，高强度，环保无污染，易于加工等特性。

TPU laminated fabric with high-intensity light , water , air tightness , wear resistance , high strength , environmental pollution , easy processing characteristics .

实验结果表明，AFL不仅增加了电池的气密性，而且也扩大了阳极的三相反应区域。

Experimental results demonstrate that the AFL not only improves the gas-tightness of a cell , but also increases the amount of TPB .

在85kPa膜下真空度的情况下，1m厚渗透系数小于10-6cm/s的淤泥搅拌墙满足气密性的持久性要求。

And it was concluded that mixing silt wall with breadth 1m and permeability less than 10-6cm / s met the need of the airtight capacity under vacuum of 85 kPa .

本文介绍了以PLC和工控机为基础的汽车油箱气密性检测系统的设计，在检测中引入了二次充气法来减少检测时间，详细介绍了二次充气法的原理；

This article introduces the research and design of testing pneumatic seals system , Which the PLC and industry computer are used in it , and find a new method to reduce the time , it 's that we inflate the oil box twice ;

通过Ni-Ti活性焊料部分液相瞬间连接工艺，实现了高纯Al2O3陶瓷和可伐合金（Kovar）的气密性连接。

An airtight joint between high purity Al2O3 and the alloy Kovar was obtained using a partial transient liquid phase ( PTLP ) bonding technique with Ni Ti filler .

封帽是VCSEL激光器生产中非常重要的一个环节，对产品的气密性和机械性能有很大的影响，进而影响产品的质量和可靠性。

Cap-sealing is very important to the production of VCSEL laser , which have a great impact on the air-tightness and mechanical properties of the products , hereby affecting the quality and reliability .

测试表明，通过苯并环丁烯（BCB）材料实现的250℃时硅-硅、硅-玻璃键合的气密性要优于300℃阳极硅-玻璃键合样品和相关标准一个数量级以上；

The leakages of the silicon-silicon and silicon-glass bonding with the benzo-cyclo-butene ( BCB ) material at 250 ℃ were better than the ones of the anodic bonding at 300 ℃ .

该设备是检测CAC480E、372等类型的水泵壳体的气密性。

This equipment is testing CAC480E , 372 , and other types of pump shell of tightness .

目前，大腔体器件（150～200mm周长，对角线≤70mm）气密性焊接的成品率已达到93%。

So far , the yield of hermetical welding for large cavity devices ( perimeter : 150 ~ 200 mm , diagonal : ≤ 70 mm ) reaches 93 % ?

对乳液法制备的SBR粘土纳米复合材料的气密性进行了研究，结果表明：SBR粘土纳米复合材料的气密性优于传统填料填充的硫化胶，且随温度的变化较小；

The air tightness of the clay / SBR nanocomposite prepared by mixing clay and SBR latex was investigated . The results showed that the air tightness of clay / SBR nanocomposite was better than that of the traditional filler filled SBR vulcanizate , and changed fewer with the temperature ;

聚合物填料复合材料以其低廉的成本、简便的成型工艺、良好的气密性和耐腐蚀性而被认为是直接甲醇燃料电池（DMFC）双极板的适用材料之一。

Due to low-cost , ease of molding , low gas permeability , as well as high corrosion resistance , polymer-filler composite material was considered to be one of good candidates for bipolar plate material of direct methanol fuel cell ( DMFC ) .

当烧结温度较低时，烧结后的SDC电解质膜多孔，气密性差，单电池的开路电压不到0.7V。1400℃是SDC膜致密化的最低烧结温度。

If the sintering temperature is low , the sintered SDC film has poor density , and the OCV of the single cell is below 0.7V . 1400 ℃ is the lowest temperature to get a dense SDC electrolyte film .