1) vacuum flow
真空气流
2) air-jet vacuum pump
空气射流真空器
1.
Taking the air-jet vacuum pump as the research object and utilizing the software of FLUENT to simulate the flow field of air-jet vacuum, in a certain operating condition, the influences of five structure parameters on the remaining pressure in air-jet vacuum pump are obtained.
以空气射流真空器为研究对象,采用FLUENT软件对其内部流场进行数值模拟,得出在一定的工况下,空气射流真空器5个结构参数对其残余压强的影响情况。
2.
Taking the air-jet vacuum pump as the research object and utilizing the software of FLUENT to simulate the flow fields of air-jet vacuum,the distributions of velocity and pressure are obtained.
以空气射流真空器为研究对象,采用FLUENT软件对其内部流场进行数值模拟,得出空气射流真空器内部流场的速度和压强的分布云图。
3) Vacuum-Gas Pressure Infiltration
真空气压渗流
1.
Experimental Investigation of Mg_2B_2O_5w/AZ91D Composite Fabricated by Vacuum-Gas Pressure Infiltration Process;
真空气压渗流法制备硼酸镁晶须增强镁基复合材料的试验研究
4) pneu-vac dryer
真空气流干燥器
5) vacuum degasification
真空脱气
1.
The paper analysed contact fatigue performances of vacuum degasification steel and common electric steel.
试验并分析了真空脱气钢和普通电炉钢的接触疲劳性能。
6) vacuum gas quenching
真空气淬
1.
Through to observing the section microstructure, and according to Fe-W-Mo-Cr-V-C the high-speed steel Fe-C micro dual phase diagram, the reason of vacuum gas quenching the high-speed steel melting accident was analyzed.
通过对截面金相组织观察,并根据Fe-W-Mo-Cr-V-C系高速钢Fe-C微二元相图,对真空气淬中高速钢工件发生熔化的原因进行了分析。
2.
W18Cr4V steel was heat-treated by vacuum gas quenching and conventional oil quenching respectively.
采用真空气淬法和普通空气加热油淬法分别对W18Cr4V钢进行热处理。
3.
Service conditions,Processes of vacuum gas quenching and vacuum tempering as well as vacuum stress relief annealing processes realized respectively before quenching and during service as well as after repair welding for the die-casting die parts of 4Cr5MoSiV1 steel were discribed.
论述了4Cr5MoSiV1钢制铝合金压铸模零件的服役条件,真空气淬、真空回火工艺,以及分别在淬火前、使用过程中和补焊后进行的真空消除应力处理工艺。
补充资料:射流泵和喷射器
分子式:
CAS号:
性质:又称射流泵和喷射器。利用高压工作流体的喷射作用来输送流体的泵。由喷嘴、混合室和扩大管等构成。工作流体在高压下经过喷嘴以高速度射出时,混合室内产生低压,被输送的流体被吸入混合室,与工作流体相混,一同进入扩大管。在经过扩大管时,流体的压力又逐渐上升;然后排出管外。根据所用的工作流体,一般分为蒸汽喷射泵(steam jet pump)和水喷射泵(water jet pump)两类。构造简单、使用方便。但产生压头小,效率低,且被输送的流体因与工作流体相混而被稀释,使其应用范围受到限制。用于化学工业和动力工程等方面。
CAS号:
性质:又称射流泵和喷射器。利用高压工作流体的喷射作用来输送流体的泵。由喷嘴、混合室和扩大管等构成。工作流体在高压下经过喷嘴以高速度射出时,混合室内产生低压,被输送的流体被吸入混合室,与工作流体相混,一同进入扩大管。在经过扩大管时,流体的压力又逐渐上升;然后排出管外。根据所用的工作流体,一般分为蒸汽喷射泵(steam jet pump)和水喷射泵(water jet pump)两类。构造简单、使用方便。但产生压头小,效率低,且被输送的流体因与工作流体相混而被稀释,使其应用范围受到限制。用于化学工业和动力工程等方面。
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