abrasive sand

Before the experiment, the thin sand paper was first employed to nick the wafer for 5 minutes. The diamond abrasive abraded the wafer for 15 minutes. Then the wafer was cleaned in the deionized water by the ultrasonic and was dried by the blower.

在沉积实验之前，首先用细砂纸将硅片打磨5分钟，金刚石研磨膏研磨硅片15分钟，用去离子水冲洗，超声波清洗，取出后吹风机烘干，然后放入反应室沉积金刚石薄膜。

In shipment, it becomes contaminated with dirt, sand, nails, wood, and a variety abrasive contaminants.

在运输过程中, 受到泥土 、 沙子 、 铁钉 、 碎木以及各种具有研磨性杂物的污染.

On the basis of erosion wear theory of materials and the abrasive water jet cutting process, the mechanisms of both casing cutting and formation rock cutting with hydraulic sand blasting perforation of oil wells are discussed, and the influencing parameters are investigated.

根据材料冲蚀磨损理论和磨料射流切割原理，对利用水力喷砂射孔技术切割套管和近井地层岩石的机理及其影响因素进行了分析。

ExhibIt'sand belt sand paper abrasive product , diamond sand wheel , Pitch cutting, Black lead cloth, etc.

展品:带、纸其异型品,石墨布 、 、瓷轮、割片 、 刚石轮等.