1) air tightness
气密性
1.
Engine Valve and Valve Seat Air Tightness Test
发动机气门与气门座气密性检测
2.
The results showed that the molecular chains of BIIR were intercalated into the nano-OMMT layers in the composites;the mechanical properties of OMMT/BIIR nanocomposites were improved rapidly with the increasing of OMMT content(0~15 phr);and compared with the BIIR vulcanizate,the OMMT/BIIR nanocomposites had better air tightness.
结果表明,OMMT/BIIR纳米复合材料是有序插层型纳米复合材料,在OMMT用量(0～15份)较小的情况下,其物理性能随着OMMT用量的增大明显提高;与BIIR胶料相比,其气密性优异。
3.
The air tightness of the clay/SBR nanocomposite prepared by mixing clay and SBR latex was investigated.
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 ;填料的用量、形状以及与橡胶的结合活性是影响气密性的主要因素 ;填充 2 0份粘土的纳米复合材料气密性优于NR/SBR内胎 ,比IIR内胎
2) Airtightness
气密性
1.
A method to ascertain airtightness of regulable refrigeratory, airtightness material selection and a way to made air retaining wall were discussed in this paper.
论述了气调库气密性的确定方法,气密材料的选择及气密层的做法,介绍了用正压法检测气调库气密性的具体操作过程,并给出了国内外的不同气密性标准。
2.
This paper has analyzed the airtightness of auto lamps shell using the contact analysis of finite element method, has obtained the displacement curve, the primary factor that affected the distortion is optimized, finally obtained the reasonable structure of auto lamps, this methods provide a good theory for structure improvement and assemble planning.
本文采用接触有限元方法对车灯壳体总成的气密性进行了分析,得出位移曲线,并对影响变形的主要因素进行优化,最终得到合理的灯具结构,为改进制造和装配工艺提供了理论依据。
3.
New measures were suggested for node processing to garantee the airtightness of the roof.
对圆形双层隔热彩钢扣板式顶盖进行了进一步分析研究 ,特别是在确保气密性方面 ,对各节点的处理和设计方案进行改进与完善 ,提出了新的保证措施 ,确保双层隔热彩钢顶盖气密性达到要求 ,对相近工艺的屋盖设计和施工具有指导意
3) Air-tightness
气密性
1.
Technologies for Investment Castings with Air-tightness;
有气密性要求的精铸件工艺探讨
2.
A large part of heat loss of buildings is from doors and windows,affected by factors of heat transmission coefficient,air-tightness,window-wall ratio and orientation.
外门、外窗热量损耗的因素有传热系数、气密性、窗墙比与朝向,从建筑节能的角度对节能门窗进行设计、施工和质量控制,大幅降低热量损耗,是建筑节能的重要问题。
3.
The existing conditions of air-tightness research in various countries in the world are described.
介绍了世界各国的气密性研究现状 ,给出了高速列车的气密性要求、气密性标准及气密性试验标准 ,对我国气密性研究提出了建
4) gas tightness
气密性
1.
It also analyses the reliability in insulation, peak withstand current capability, gas tightness and mechanical strength with respect to two kinds of coil support modes.
介绍了首批国有知识产权的LVQB-550型SF6电流互感器的安全运行情况及生产形势,并从结构设计上分析了两种不同线圈支持方式的LVQB-550型产品在绝缘、电动稳定性、气密性及机械强度等方面的可靠性。
2.
This paper mainly introduces the necessity and the common methods of gas tightness detection to the military sealed elements.
主要介绍军用密封元器件气密性检测的必要性及常用方法。
5) Gastightness
气密性
1.
The results showed that the better gastightness the warehouse have,the longer time the PH 3 effective concentration can maintain,and the better fumigation effect can be achieved.
在半衰期为 78秒的 4 5号仓和半衰期为 5 4秒的 4 9号仓进行环流熏蒸效果对比试验 ,试验结果表明 ,气密性越好 ,维持PH3气体有效浓度的时间越长 ,熏蒸效果也越好。
2.
A series of P-T tests in field and model bin were carried out,through controlling initial pressure upper limit P and gastight degree,The results showed that gastightness not only relates to airtight degree,structure material and technological quality,but also relate to pressure upper limit,temperature and so on.
文章通过控制初始压力上限P和气密程度 ,进行了一系列P -T试验 ,对室内模拟仓和实仓进行测试 ,通过试验和对实验结果数据的处理分析 ,发现气密性不仅与环境密闭程度、结构材料及工艺质量有关 ,而且与测压上限及温度等环境条件有关 ;并且 ,在相同气密条件下 ,容器不同初始压力下的半衰期之间存在很好的线性相关性。
3.
The results indicated that the higher the gastightness in the stacks was,the longer the pressure decay and maintaining time of fumigant were.
以压力衰减法测定两个相似的薄膜密封包装玉米垛的气密性、采用PH3和CO2 混合熏蒸后PH3和CO2 气体浓度在粮垛内的保持情况以及对玉米象、米象和赤拟谷盗 3种害虫处理后的结果。
补充资料：气密性
分子式：
CAS号：
性质：指塑料薄膜或薄片阻止氧、氢、氮等各种气体透过的性质，这在真空系统的建立中起着重要作用。如真空包装时所使用的薄膜，应该阻止氧的透过，这样才能保住内部物质或食品不被氧化。
CAS号：
性质：指塑料薄膜或薄片阻止氧、氢、氮等各种气体透过的性质，这在真空系统的建立中起着重要作用。如真空包装时所使用的薄膜，应该阻止氧的透过，这样才能保住内部物质或食品不被氧化。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条