置換電鍍 的英文怎麼說

中文拼音 [zhìhuàndiàn]
置換電鍍 英文
displacement piston
  • : 動詞1. (擱; 放) place; put; lay 2. (設立; 布置) set up; establish; arrange; fix up 3. (購置) buy; purchase
  • : 動詞1. (給人東西同時從他那裡取得別的東西) exchange; barter; trade 2. (變換; 更換) change 3. (兌換) exchange; cash
  • : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
  • : 動詞(用電解或其他化學方法使一種金屬附著到別的金屬或物體表面上) plate
  • 置換 : displace; substitute; supersede; substitution; replacement; permutation; transposition; transposi...
  • 電鍍 : electroplate; electroplating; electrofacing; (electric) plating; electrocladding; galvanize; ga...
  1. Meanwhile, fundamental principles about electroless tin plating by reducing agent and disproportionation reaction were explained. function of every component in the bath was explained that complexing agent can effectively change the potential of copper and tin, and accelerate the beginning of replacement reaction favorably ; reducing agent can increase the rate of chemical reaction and has the effect of promoting reaction dynamics too ; antioxidant can effectively prevent sn2 + in the bath from being oxidated ; additive agent a can improve the stability of the bath ; additive agent b has such effects as refining and brightening for the tin deposits, and it enlarges the range of brightening section ; additive agent c used as leveling agent can not only make the depostis level off, but also improve the dispersive ability of the bath ; surface - active agent can solve bubble problem which gathered on the surface of the deposits, and improve the surface quality of the deposits and the bath stability

    闡述了液中各組分的作用:絡合劑能有效地改變銅、錫的位,促使初期的反應順利進行;還原劑能加快化學反應速度,對反應動力學有積極的促進作用;抗氧化劑能有效地防止液中sn ~ ( 2 + )的氧化;添加劑a能提高液的穩定性,添加劑b對層能有細化和光亮作用,擴大了層光亮區的范圍;添加劑c作為平滑劑,不僅能增強層表面的平整性,而且能提高液的分散能力;表面活性劑較好地解決了化學過程中汽泡在件表面聚集的問題,提高了層的表面質量和液的穩定性。
  2. For the special physical and chemical character of aluminum, a nickel layer is deposited before electroplating. it can avoid the active surface of aluminum oxidized again or substitution reaction in the bath

    由於鋁特殊的物化性質,鎳鉻合金前採用預鎳的工藝,避免活化后的鋁基體表面再次被氧化或在液中發生反應。
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