电子束加热

由于高温熔铀特有的化学活泼性和在分离过程中电子束加热产生剧烈的热冲击，使得这类材料的制备具有很高的难度。

The manufactures of vaporizing crucible materials are with big difficulties because of the special chemical activity of melten or evaporated uranium and the severe thermal shock from the heating electron beam during the separation process .

用电子束轰击加热法研制≤50nm厚的α-Fe薄膜吸收体样品

Preparation of a-Fe thin film (≤ 50 nm ) samples by electron beam bombardment

在真空室用电子束轰击加热蒸发的方法，研制成功表面呈银白色且光亮的≤50nm厚的α-Fe薄膜（吸收体）样品。

A method is described of preparing a - Fe thin film absorber samples by electron beam bombardment in a vacuum chamber . The film is about ≤ 50 nm thick , silverly - white and bright , and uniform .

电子束扫描加热温度场的有限元分析

Finite Element Analysis on Temperature Field of Electron Beam Scanning and Heating

用电子束扫描加热的方法对具有毛细管板接头的不锈钢结构件进行钎焊是非常有效的。

It is very effective to use the scanning electron beam ( EB ) heating to braze the stainless steel structural part with capillary-to-plate joints .

在验证试验中采用电子束定点加热和移动加热试验，对熔池截面尺寸与模拟结果进行对比，能够达到预期效果。

In confirmatory test , carry on the contrast to the molten bath section size and the analogue result by use of tack-welding and linear tack-welding . it can achieve the anticipated effect .

利用该系统可对电子束扫描加热区域的能量密度分配进行离线编辑、计算和预测，并将电子束焊接过程中的三维能量分布实时显示在工控机屏幕上。

Energy density distribution at EB scanning heating zone can be programmed offline , calculated and forecasted , and three-dimensional energy distribution during electron beam welding ( EBW ) can be real-time displayed on the IPC screen .

还用FinniganMat-8230B色谱质谱联用仪测定比较了电子束辐照，加热法（120℃，30min）对五香粉香气组分含量的影响。

The flavour composition in the five-spicc powder irradiated by electron beam was also determined by Finnigan MAT-8230B gas chromato graph-mass spectrometer . and compared to the results by heating treatment ( 120C , 30 min ) .

研究了电子束束流、加热时间、聚焦电流和扫描幅值等电子束钎焊工艺参数对钎焊接头质量的影响规律。

Effects of electron beam brazing parameters including beam current , heating time , focus current and scanning amplitude on the quality of brazing joints are discussed .