1) Pressure sealing ring
自密封环
2) pressure sealing ring
金属自密封环
1.
Development of metallic pressure sealing ring used for high temperature and pressure valve;
高温高压阀门用金属自密封环的研制
3) self-compacting
自密
1.
To counter the problems occurred commonly in the base of asphalt pavement,a new self-compacting patching material consists of cement,aggregate and some additive such as water reducing and expanding additive named UEA is made up with the method of homogeneous design.
针对沥青路面半刚性基层易发生破损等出现一系列问题,选用水泥、碎石、早强-减水剂、UEA膨胀剂等为原料,运用均匀优化设计方法,配制自密实型基层快速修补材料。
4) self-compacting
自密实
1.
Application and preparation of self-compacting concrete;
自密实混凝土的配制与应用
2.
Mixing technology of C70 self-compacting steel tube-confined concrete;
C70自密实钢管混凝土材料配制技术
3.
Research on the workability of high-strength semi-lightweight self-compacting concrete;
高强自密实次轻混凝土工作性能研究
5) self-compaction
自密实
1.
Research and application of C60 super high-early-strength and self-compaction concrete;
C60超早强自密实混凝土的研究及应用
2.
Research on non-vibro-casting self-compaction concrete moulding test;
免振捣自密实混凝土成型试验研究
3.
In order to satisfy the demand of self-compacting concrete for road repair, the researchers reduced the yield shearing stress of fresh concrete and made concrete mixture reach the fluidity of self-compaction by using superplasticizer and ultra-pulverized fly ash composite to improve cementitious material gradation.
为满足修补混凝土自密实的要求,利用高效复合减水剂增塑和超细复合粉煤灰改善胶凝材料级配等有效措施,尽可能降低新拌混凝土屈服剪应力,使混凝土拌合物达到自密实所需要的流动性,在大量试验的基础上确定了自密实混凝土的配比参数。
6) scelf-compacting ability
自密实性
参考词条
补充资料：平垫自紧密封
分子式：
CAS号：
性质：此类密封的结构是依靠容器介质的压力作用在顶盖上，从而压紧平垫片来实现密封的。采用这种结构是使顶盖和筒体端部以螺纹连接，而避开了笨重而复杂的法兰螺栓连接结构，其密封性能可靠，由于顶盖可以在一定范围内移动，所以在温度和压力波动时仍能保持良好的密封性能，这种结构的缺点是拆卸较困难，对大直径容器而方，加工和拧紧螺纹套筒均很困难，所以此类结构不宜用于大直径压力容器。
CAS号：
性质：此类密封的结构是依靠容器介质的压力作用在顶盖上，从而压紧平垫片来实现密封的。采用这种结构是使顶盖和筒体端部以螺纹连接，而避开了笨重而复杂的法兰螺栓连接结构，其密封性能可靠，由于顶盖可以在一定范围内移动，所以在温度和压力波动时仍能保持良好的密封性能，这种结构的缺点是拆卸较困难，对大直径容器而方，加工和拧紧螺纹套筒均很困难，所以此类结构不宜用于大直径压力容器。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。