1) pinhole collar
针孔领
2) pinhole
[英]['pɪnhəʊl] [美]['pɪn'hol]
针孔
1.
Analysis of pinhole defect formation mechanism in aluminium foil;
一种铝箔针孔形成机理的探讨
2.
Effect of particle dimension in aluminium foil rolling oil on pinhole formation;
铝箔轧制油中粒子尺寸对针孔形成的影响
3.
Reasons for forming pinholes and cracks in ion-exchange membrane and their effects as well as patching-up skills;
离子膜出现针孔和撕裂的原因、影响及其修补技术
3) pin hole
针孔
1.
Research and practice on pin hole of light conversion foil process of aluminum and aluminum alloy
铝及铝合金薄转换箔轧制过程中的针孔
2.
The mechanism research of pin hole formation has been performed by applying surface appearance and element quantita-tive analysis method.
采用SEM表面形貌和元素定量分析方法对铝箔针孔形成机理进行了研究,提出了“非金属夹渣在轧制过程中的脆性断裂可导致铝箔形成短程线性针孔”,以及“铸轧带材表面缺陷也可形成分散性针孔”的机理;将这一机理应用到软管用铝合金箔材(简称软管箔)的生产实践中,在减少针孔方面取得了重大突破。
3.
0065 mm aluminium foil's performance, pin hole and surface quality are studied.
0065mm铝箔的性能、针孔度、表面质量。
4) pin-hole
针孔
1.
Elimination of Pin-hole Defect in Cylinder Head Based on Quality Control(QC) Management;
运用QC管理方法解决缸盖大面针孔难题
2.
As for the film on the large area glass and PMMA by vacuum magnetic sputtering,the pin-holes and the adherence are an interesting problem.
而在玻璃、亚克力等透明基片上用磁控溅射方法大面积沉积的膜层,针孔和结合力是一个令人关注的问题。
5) pinholes
针孔
1.
Based on theoretical analyze and practice, the methods to prevent pinholes of castings were obtained, such as solidification under high pressure and rapid solidification.
通过理论分析与实践,总结出减少铝合金铸件针孔的方法,在高压下凝固;快速凝固;通过电阻反应炉熔化及富氧送风熔化铝合金可从源头上减少合金中的含氢量,进而减少铸件的针孔;也可通过过滤净化除去铝合金中的氢与渣的大部分,进而减少铸件上的针孔。
2.
It is reported that if the aluminum melt is sufficiently purified with requirements on hydrogen content and filtration met,good results can be achieved with pinholes less than 100 per square meter of foil with thickness below 0.
00635mm后,其针孔数少于100个/m2。
3.
This paper is mainly to discuss the pinholes in Zr-opalescent glaze for sanitaryware from glaze application technology.
主要从施釉工艺方面探讨如何减少卫生瓷锆乳浊釉釉面针孔缺陷。
6) vent needle
孔针
补充资料:X射线针孔成像
利用X射线通过针孔能够成像的性质进行X射线天文观测的一项技术。1960年4月,美国布莱克等人用针孔照相机获得太阳的X射线照片,计算出0~60埃波段内 X射线流量为 0.3尔格/(厘米2·秒)。这个针孔的直径为0.0127厘米。为了避免可见光和紫外线照射底片,在针孔前放置了0.25毫克/厘米2的帕洛迪安 (Parlodion)膜和2500埃厚的铝层构成的滤光片。采用不同的滤光片,可以获得相应波段的照片。这种针孔照相机的分辨率低,不能满足空间研究发展的需要。六十年代创制的掠射X射线望远镜满足了高分辨率的要求,但由于造价昂贵,未能广泛应用。迪克和爱尼哈默提出制造多孔径针孔照相机,可以将分辨率提高到几个角秒,而且体积较小,适用于航天器。多孔径针孔照相机利用相关检测的原理,使来自复合目标的光子信号多路复用,减小固有噪声,提高信噪比。从原则上说,可以用各种各样的方法实现多孔径针孔成像。1973年,布莱克等人在火箭上使用两个互补的多孔径针孔板,获得 8~20埃波段内的太阳像,分辨率优于1'。
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