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1)  gas-tight concrete
气密性砼
2)  concrete uniformity & density
砼的匀密性
3)  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
4)  High air-sealed
高气密性
5)  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
6)  air permeability performance
气密性能
1.
Discussion on the air permeability performance of the external window and quality control;
建筑外窗气密性能思考及质量控制
2.
Analysis for effect air permeability performance to thermal insulating properties of external windows
建筑外窗气密性能对保温性能影响分析
补充资料:高气密性橡胶
分子式:
CAS号:

性质: 即透气性很小的橡胶,用于制造轮胎内胎、气压胶管、气密封及真空密封橡胶。含有极性基团的橡胶,分子间吸引力大空隙小;分子链含有大侧基时,空间位移阻力较大;结晶的橡胶,分子链排列紧密有序。故以上三种分子结构的橡胶都是不易透气的。氯丁橡胶、丁腈橡胶、丁基橡胶、氟橡胶及新开发的环氧化天然橡胶都属耐透气性橡胶,而天然橡胶、丁苯橡胶、硅橡胶则属透气性较大橡胶。为提高胶料气密性,可多加云母粉、滑石粉填充剂;适当增加硫黄用量,提高硫化交联密度;增加胶料的致密度,并尽量少加增塑剂。用于真空系统的橡胶制品宜选用氟橡胶或丁基橡胶。

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