In order to meet the strict requirements for ACSR by utilities, which include, among others, high compact construction and round and smooth surface, a pre twist is added to the tubular strander.
根据电力使用部门的需要 ,对钢芯铝绞线提出了更高的要求 ,即高度紧密性及表面圆整度和光滑度 ,为此 ,在管式绞线机上加装预扭装置 ,使产品符合了使用要求。
Technology study of 4.2 tex low mixed combed cotton yarn compact spinning;
低配棉4．2 tex紧密纺精梳棉纱的工艺研究
The preliminary application exploratory of compact spinning in cashmere worsted spinning;
紧密纺在精纺羊绒纺纱中的应用初探
Research on cross-section layout of compact spinning;
紧密纺断面结构布局的研究
By using particle dense packing theory,the influence of particle size distribution of cementitious material on microstructure and st rength of cement gel were discussed in this paper.
根据颗粒紧密堆积理论,探讨胶凝材料的颗粒级配对水泥凝胶体微观结构及强度的影响。
In this paper,by using the Andreasen theory of the dense packing powder,the author mixed the mineral admixtures in certain proportion to make the particle size distribution of the cementitious materials similar to that of the state of dense packing.
利用Andreasen颗粒紧密堆积理论 ,将不同细度的矿物掺合料以适当比例掺配 ,使得胶凝材料颗粒的级配在一定程度上接近紧密堆积状态。
It is tried to summarize the relationship between the dense packing property and so factors, such as percentage, fineness or the particle size distribution of those mineral powders.
本文通过Aim和Goff模型,从矿物掺合料的密实填充效应方面,理论上分析了矿物掺合料对二元单掺和三元双掺水泥复合胶凝材料体系堆积密实度的改善情况,试图得出体系堆积密实度与各种矿物掺合料掺量、细度、粒度分布的关系;进而又通过试验具体分析研究了调粒水泥内部的颗粒紧密堆积效应对新拌浆体流动性能,硬化浆体强度发展及水化程度、水化产物的影响。
Impacting factors on rotary printing of high quality compact fabric;
影响高档紧密织物圆网印花效果的因素分析