柵網(wǎng)表面處理工藝
TECHNOLOGY OF SURFACE TREATMENT OF THE GRID
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摘要: 正 控制柵柵網(wǎng)是柵控脈沖行波管的關(guān)鍵部件之一。這種柵網(wǎng)是由鉬片經(jīng)電火花加工制成的。制成的柵網(wǎng)的網(wǎng)絲上常常有毛刺和其它黑色附著物。這些附著物不易清除干凈并因此往往造成管子打火,柵極截獲電流偏大,從而影響管子的性能和成品率。因此,設法將柵網(wǎng)表面處理干凈是十分重要的。 清除柵網(wǎng)表面附著物目前通常用手工去除毛刺和金剛砂超聲處理,但效果較差。為了尋求一種較有效的處理工藝,我們先用離子探針和俄歇電子譜儀對網(wǎng)絲表面進行了組
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關(guān)鍵詞:
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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