The experimental research on 'diffusion bonding of spheroidal graphite cast iron and copper is conducted by adopting the self-made equipment of small vacuum diffusion bonding.
采用自制的小型真空扩散接合装置，进行了球铁与铜扩散接合试验研究。
In allusion to the problems of vacuum diffusion welded jet bits, a technique for manufacturing horizontally projected jet bits by means of vacuum diffusion welding was put forward.
针对水平射流钻头钎焊工艺存在的问题，提出用真空扩散焊接代替钎焊制造水平射流钻头的新工艺。
Vacuum cooling is a complicated heat and mass transfer process supported by various theories such as diffusion, heat transfer, mass transfer and phase change.
真空冷却过程是复杂的相变传热传质过程，该过程涉及到扩散、传热、传质和相变等机理。
Describes in detail the unified standards formulated in 1953 for the series of high vacuum oil diffusion pumps manufactured in the former USSR.
详细地介绍了前苏联1953年由国家制订的高真空油扩散泵工业产品的统一系列。
Vacuum storage of food is a complicated heat and mass transfer process supported by various theories such as diffusion, heat transfer, mass transfer and phase change.
食品真空贮藏过程是复杂的传热传质过程，该过程涉及到扩散、传热、传质等机理。
Phase transition, enhanced diffusion and Y-Al alloy formation are studied using Y implantation with high current extracted from metal vapor vacuum arc (MEVVA) ion source.
利用金属蒸汽真空弧（MEVVA）源所产生的强束流离子注入铝研究了相变、增强扩散和钇铝合金的形成条件。
This Model Vacuum pump can be used along, or as the backing pump of the other kinds of pumps, such as booster pump, diffusion pump, molecular pump etc.
它可以单独使用，管道泵也可作为增压泵、扩散泵、分子泵的前级泵使用。
An ethylene diffusion flame has been investigated at normal pressure using synchrotron vacuum ultraviolet (VUV) photoionization and molecular-beam mass spectrometry.
本文利用探针取样法结合同步辐射真空紫外光电离和分子束质谱技术研究了常压下的乙烯扩散火焰。
The results showed that the vacuum boronizing pretreatment method effectively reduced the diffusion and mobility of Co in the substrates and obviously roughened the surface of the cemented carbide.
结果表明，真空渗硼预处理不仅可以有效的消除或控制钴在金刚石沉积时的不利影响，而且，还显著粗化硬质合金基体表面。
The results show that interface element diffusion and reaction on interface in vacuum hot-pressing sintering processing improved interface strength. Fracture occurred mainly in Al matrix.
结果表明，真空烧结过程中出现了界面反应，改善了界面结合强度，断裂破坏主要在基体上进行。
Gonghua brand series diffusion pump oil is the work fluid used by metal diffusion pumps and glass diffusion pumps in the process of vacuum pumping.
巩华牌系列扩散泵油是金属扩散泵及玻璃扩散泵真空抽气时使用的工作液。
KT-400 high vacuum oil diffusion pump, which is characterized by extreme high vacuum, pumping speed large, increase production efficiency while the vacuum pneumatic valves with automatic control.
KT- 400高真空油扩散泵，它的特点是真空极限高，抽速大，提高生产效率，同时真空气动阀门采用自动控制。
In the invention, the pole shoe walls and the heat conduction layer are placed in a vacuum furnace and then welded into one by diffusion welding by adopting a diffusion welding tool.
本发明采用扩散焊工装，将极靴壁和导热层放置于真空炉中通过扩散焊焊接为一体。
In the invention, the pole shoe walls and the heat conduction layer are placed in a vacuum furnace and then welded into one by diffusion welding by adopting a diffusion welding tool.
本发明采用扩散焊工装，将极靴壁和导热层放置于真空炉中通过扩散焊焊接为一体。
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