The role of cold nitrogen gas and oil mist on tool wear and surface roughness is investigated in turning the K424 nickel-base super alloy with Sialon and SiC whisker-reinforced alumina ceramic tools.
在干切削、低温氮气和低温氮气油雾3种冷却润滑条件下,通过Sialon陶瓷刀具和SiC晶须增韧Al2O3陶瓷刀具车削K424镍基高温合金的实验,研究了低温氮气及油雾对刀具磨损和表面粗糙度的影响,开发了一个新的冷却系统以获得低温氮气。
Using nitrogen absorption under low temperature, the micro structure parameters of the porous silicon (PS), such as the specific surface area, pore volume and pore size distribution are obtained, from which the variations of the structure parameters with the ambient conditions and technological parameters are found.
应用低温氮吸附法测量了多孔硅（ＰＳ）样品的比表面积、孔容及孔径分布等微结构参数，总结出这些微结构参数随环境条件及工艺参数的变化规律。
Effect of non-ionic surfactants in bacteria leaching of chalcopyrite at low temperature;
低温下非离子表面活性剂加速细菌浸出黄铜矿
Study on compound coating film in preservation of fresh waxy corn in low temperature;
复合涂膜低温保藏鲜食糯玉米研究
Thiobacillus ferrooxidans bioleaching of chalcopyrite at low temperature;
低温下氧化亚铁硫杆菌浸出黄铜矿
Review of supported noble metal catalysts for low-temperature CO oxidation;
低温CO氧化负载型贵金属催化剂的研究概述
Design and summary of 1000m~3 low-temperature spherical tank for oxygen storage;
1000m~3低温氧气球罐设计
Research and development of RAs-10 type low-temperature dearsenic agent;
RAs-10低温脱砷剂的研制及应用
Mechanical alloying of copper-zinc powders at cryogenic conditions;
铜锌粉末低温机械合金化
Applications and Thermal Stress Analysis of Cryogenic Adhesive Bonding Technology;
低温粘接技术的应用及热应力分析
Orientation of H Bonds Revealed by Cryogenic FTIR Spectroscopy;
用低温光谱方法揭示氢键的结构特征
Effect of Hypothermia on the Plasma Level of Endothelin and Calcitonin Gene-Related Peptide in Dogs;
低温对内皮素和降钙素基因相关肽血浆含量的影响
Effects of hypothermia on interleukin-1β and tumor necrosis factor-α after traumatic brain injury of Sprague-Dawley rat;
局灶低温及全脑低温对大鼠创伤性脑损伤后IL-1β与TNF-α的影响研究
The research of image and pathology of resuscitation after selective cerebral ultra-deep hypothermia blood flow occlusion;
猴脑选择性超深低温断血流的影像和病理研究