鉛鍍層的英文怎麼說

中文拼音 [qiāncéng]
鉛鍍層英文
lead coat

  • : 鉛名詞1. (金屬元素) lead (pb) 2. (鉛筆心) lead (in a pencil); black lead
  • : 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
  • : i 量詞1 (用於重疊、積累的東西 如樓層、階層、地層) storey; tier; stratum 2 (用於可以分項分步的...

※中文詞彙鉛鍍層在字典百科國語字典中的解釋。

  1. The weight of coating and current density has the direct ratio relation

    的量隨著電流密度的增大而增大。
  2. For electrodeposition by dc methods, the metals deposite uninterrupted and the particles were also embeded uninterrupted into the coatings ; for electrodeposition by pc method, the particles with biggish volume were desorbed from the coatings and returned to the electrolyte again owing to the presence of pulse interval ; for electrodeposition by prc method, the particles carried positive charges are much more easy to desorb from the coatings owing to the effecf of reverse pulse current combined with pulse interval, in addition, the reverse pulse current also could dissovle the metals, further accelerates the desorption of particles, thus the particles size embeded in the coatings by prc method is the least

    直流電沉積時,基質金屬的沉積連續進行,粒子在電極表面不間斷嵌入;單脈沖電沉積由於脈沖間歇的存在使得具有較大體積的粒子會脫附,重新回到溶液中;採用周期換向脈沖時,反向脈沖電流使表面荷正電的較大的粒子更易從電極表面脫附,同時,反向脈沖電流對基質金屬的溶解作用,也會促進粒子的脫附,因此中復合粒子尺寸最小。隨著中粒子復合量的增加,三種的晶粒都明顯細化,說明al _ 2o _ 3的存在阻止了晶粒的長大,提高了電沉積過程中晶核的形成速率。
  3. The effects of different current density on the alloying element content were discussed. based on the results, the optimal process condition was confirmed : pb ~ ( 2 + ) 80 - 90 g / l sn ~ ( 2 + ) 7 - 15 g / l ch _ 4so _ 3 ( dissociative ) 130 - 150 g / l composite additive 12 ml / l current density 2 - 6 a / dm ~ 2

    採用hull槽實驗方法確定了甲磺酸體系電沉積pb - sn合金的電流密度范圍,並探討了不同沉積電流密度下pb 、 sn合金含量的變化規律。
  4. Standard specification for electrodeposited coatings of lead and lead - tin alloys on steel and ferrous alloys

    鋼及鐵合金表面錫合金的電解沉積標準規范
  5. It covers the background, solders, surface finishes, components, substrates, assembly processes, rework, and reliability of lead - free soldering

    包括背景,焊料,表面,元器件,基板,組裝工藝,返工和無焊接的可靠性。
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