栅网表面处理工艺
TECHNOLOGY OF SURFACE TREATMENT OF THE GRID
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摘要: 正 控制栅栅网是栅控脉冲行波管的关键部件之一。这种栅网是由钼片经电火花加工制成的。制成的栅网的网丝上常常有毛刺和其它黑色附着物。这些附着物不易清除干净并因此往往造成管子打火,栅极截获电流偏大,从而影响管子的性能和成品率。因此,设法将栅网表面处理干净是十分重要的。 清除栅网表面附着物目前通常用手工去除毛刺和金刚砂超声处理,但效果较差。为了寻求一种较有效的处理工艺,我们先用离子探针和俄歇电子谱仪对网丝表面进行了组
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关键词:
Abstract: This paper presents a new technology of surface treatment of the grid made of molybdenum plate by electric spark machining. Procedures of the new technology are as follows: a. Boiling in 10% NaOH solution; b. Ultrasonic treating with emery + HCl solution; c. Ultrasonic treating with emery+Fe+++ Sal+H2O+small inhibitor; d. Electro-polishing with H3PO4-H2SO4-C3H5(OH)3-H2O solution. -
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