1) black layer
黑层
1.
It is observed that when the temperature is above 560℃ there is a black layer on the surface of the specimen which mainly consisted of compounds of elements from matrix and nitrogen,and when the pressure is above 35kPa,the edge′s volume is expanding because of the effect of residual compressive stress on surface and the nitriding agent quantity and nitriding depth,which is defined .
1Cr18Ni9Ti奥氏体不锈钢在460℃～580℃、气压为400Pa～70kPa、保温4h～8h条件下进行等离子渗氮处理,试验中发现当温度>560℃时,试样表面出现黑层,其主要成分为基体中的某元素与氮的化合物;当气压>35kPa时,由于残余压应力及渗剂量和渗层深度的影响,试样边缘发生体积膨胀,即边缘效应;当辉光不均匀时,边缘渗层深度大于中间部分渗层深度。
2) black deposit
黑色镀层
1.
Improvement of black deposition process on sand-castings;
翻砂铸件黑色镀层工艺改进
3) the layer of slag
黑砂层
4) black painting
黑涂层
1.
Measurement of thermel resistance black painting was described,and thus calibration factor of the black painting of the response area of the absolute radiometer.
本文介绍了黑涂层热阻的测量,进而推及热电型电校准辐射计锥腔型灵敏面黑涂层热阻的校正因子。
5) black paint
黑漆涂层
1.
The effects of black paint on laser induced shock waves in the aluminum and copper targets are introduced when the targets are irradiated by laser pulses of 33ns duration, at laser power density around 10 9W/cm 2,and wavelength 1.
介绍了约束靶表面的黑漆涂层对激光冲击波的影响。
6) Heizi fault
黑孜断层
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