With a view to successfully forming multi-sheet cylinder sandwich structure of Inconel718 superalloy, high temperature plasticity of the laser butt welding plate for Inconel718 superalloy with ultra-f
This study presents a novel process combining hot filament chemical vapor deposition (HFCVD) method and polishing technique to fabricate micro/nano-crystalline multilayered ultra-smooth diamond (USCD)
Four kinds of ZrC coatings with nearly the same thickness have been successfully prepared on graphite substrate by chemical vapor deposition (CVD) through controlling the ratio of inlet reacting gases
Outstanding anchor cable dynamometric system is urgently needed in anchor engineering of pre-stressed anchor cable so as to control tension during the process of anchor cable construction and monitor
曙一区稠油古潜山属底水块状油藏,储层裂缝发育,开发中存在含水上升速度快、区块年产油量下降速度快等问题.通过室内实验配方不断改进及施工工艺的优化、创新和完善,形成了颗粒凝胶型、水玻璃黏土胶及高强度树脂复合段塞相结合的系列堵水方式.根据各自特点确定选井条件,结合油井的具体情况采取相应配套堵水方式,提高了措施的针对性和成功率,有效地抑制了底水的锥进速度,改善了开发效果.2008～2009年期间,在研究区
针对西部凹陷西斜坡兴隆台油层含油分布范围广、厚度变化大、动用程度不均衡的现状,通过加强三维地震、储层反演等地球物理技术在该区兴隆台薄层稠油评价开发工作中的研究与应用,有效地指导了该区兴隆台薄油层的评价与开发工作,对其他类似地区薄层稠油的评价与开发工作具有借鉴作用.
To classify the quality of the resistance spot welding process, the relationship between the welder electrode displacement curve characteristics and the weld shear force has been explored where 11 sta
As a widely used general polymer material, PVC shows the great potential value for insulating or damping the sound and vibration due to their unique combination of structure, inherent damping, light-w
In-situ nanostructured FeAl2O4 composite coatings were prepared by plasma spraying Al/Fe2O3 composite powders using different spraying powers.The effects of plasma spraying powers on microstructure an
QCr0.8 was electron-beam welded to TC4 and the effect of the intermetallic layer (IMC-layer) on the mechanical properties of the joint was investigated.IMC-layers are joint weaknesses at the Cu fusion