電化鍍層 的英文怎麼說
中文拼音 [diànhuàdùcéng]
電化鍍層
英文
electrochemical plating-
Electroplated coatings - chemicals for cyanic and or alkaline electroplating baths - requirements and testing
電解鍍層.氰化槽和或鹼化槽用化學品.要求和檢驗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鍍層;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，因此鍍層中復合粒子尺寸最小。隨著鍍層中粒子復合量的增加，三種鍍層的晶粒都明顯細化，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。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合金鍍層的電流密度范圍，並探討了不同沉積電流密度下pb 、 sn合金含量的變化規律。Liberation of hydrogen gas would be increased rapidly and sic particles on the surface might be dispersed if the current density exceed the upper limit. furthermore, nickelous hydroxide would be deposited because the ph of plating solution nearby the surface rapidly increased. all of above might result in coating deterioration
若電流密度過大，超過所允許的上限值，會析出大量的氫氣，可能沖散表面覆蓋的sic微粒，而且易使磨頭表面鍍液ph值急劇上升而形成氫氧化鎳沉澱，導致鍍層質量惡化。Design of articles that are to be coated - recommendations for electroplated and autocatalytic coatings
層覆物品設計.第2部分:電鍍和自動催化覆層推薦標準Cold - reduced blackplate in coil form for the production of tinplate or electrolytic chromium chromium oxide - coated steel
生產鍍鋅板或電鍍鉻氧化鉻鍍層鋼的卷狀冷軋黑鋼板Cold reduced blackplate in coil form for the production of tinplate or electrolytic chromium chromium oxide coated steel ; german version en 10205 : 1991
生產白鐵皮和電鍍鉻氧化鉻鍍層鋼板用冷軋薄鋼板卷The result shows that with the addition of rare earth elements, ultrasonic irradiation and magnetic field, the chemical component, surface configuration, microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably. such kind of change can be described as the followings. firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases, but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced, and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce, la and decreases with the addition of heavy rare earth elements such as y. on the other side, when the alloy coatings passes through the heat treatment under the temperature of 250 or 500, their properties will change
結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土元素（ ce 、 la 、 y 、 dy ） 、能量（超聲波、磁場）介入后，沉積過程、合金成分、鍍層形貌結構和性能都有顯著變化，表現在：鍍液的陰極極化過電位和極化度降低，沉積速度提高；鍍層的結合力、表面質量改善；鍍層中過渡族元素的含量增加，輕元素硼的含量降低，同時證實了稀土元素與過渡族元素共沉積的可能性；鍍層的顯微結構由非晶態向微晶和多晶態轉變；鍍層的顯微硬度與耐磨性提高，力學性能優化；鍍層的矯頑力降低；磁導率提高；鍍層的磁化強度在能量（超聲波、磁場）和輕稀土元素ce 、 la介入后提高，重稀土元素y介入后降低。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
闡述了鍍液中各組分的作用：絡合劑能有效地改變銅、錫的電位，促使初期的置換反應順利進行；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鍍液中sn ~ （ 2 + ）的氧化；添加劑a能提高鍍液的穩定性，添加劑b對鍍層能有細化和光亮作用，擴大了鍍層光亮區的范圍；添加劑c作為平滑劑，不僅能增強鍍層表面的平整性，而且能提高鍍液的分散能力；表面活性劑較好地解決了化學鍍過程中汽泡在鍍件表面聚集的問題，提高了鍍層的表面質量和鍍液的穩定性。The zircondri filin wtut rirconia wa prepared and the removing technology of the zirconia on the zirconium sdrices was obtalned. the methods of chemistry and magnetron sputtring plating were used in order to platc a palladium film, which is characteristic of self catalysis for hydrogen and the sole h - permselectivity on the clean rirconium sdrices prepared by the methods of electrochemitw and ( or ) high temperatur vacuum hydrgenization, which was firstly studied. the plating tedrilogy was obained and the surface modified zirconium membran was prepared
在利用電化學法和真空高溫除氧加氫法去除了鋯表面氧化膜的基礎上，分別採用化學法、磁控濺射法兩種鍍膜技術在其表面上鍍上了一層對氫具有自催化分解、唯一選擇滲透性的金屬鈀膜，首次獲得了鋯基材膜表面上鍍鈀的制備工藝，成功制備了鋯表面改性選擇滲氫膜。( 1 ) first, metallizing abs plastics surface by chemical coarsing, metal ion absorption, metal ion reducing and chemical copper - plating. then, the copper - coating was thickened by electroplating in order to improve adhesion between following - coating and plastics matrix, and nickel was preplating. finally, ni - sic composite was plated
（ 1 ）通過反復實驗，確定工藝流程：首先通過粗化、敏化、活化和化學鍍銅，使塑料表面金屬化，再電鍍銅加厚銅鍍層，增強后續鍍層與塑料基體的結合力，然後預鍍鎳，最後電鍍ni ? sic復合鍍層。The results were shown as follows : ( 1 ) the electrolyte components for electroplating pb - sn coatings in fluoborate system were studied. the effects of concentrations of main salt, dissociative acid, inhibitor, antioxidation and surfactant on the cathode polarization curves of electroplating pb, sn and pb - sn alloys and contents of alloying element were investigated systematically. the scale of current density was confirmed using hull cell
（ 1 ）研究了氟硼酸體系電鍍pb - sn合金鍍層的電解液組成，詳細討論了主鹽濃度、游離酸濃度以及阻化劑、抗氧化劑、表面活性劑等添加劑對氟硼酸體系電沉積pb 、 sn及pb - sn合金陰極極化曲線的影響和對pb - sn合金鍍層中合金含量的影響。Test methods for bare wires - test for continuity of coating - sodium polysufide solution method
裸電線試驗方法鍍層連續性試驗多硫化鈉法Fixed capacitors for use in electronic equipment - sectional specification : fixed metallized polyphenylene sulfide film dielectric surface mount d. c. capacitors
電氣設備用固定電容器.分規范:固定金屬化聚苯撐硫化膜鍍層表面固定直流電容器Fixed capacitors for use in electronic equipment - blank detail specification : fixed metallized polyphenylene sulfide film dielectric surface mount d. c. capacitors - assessment level ez
電氣設備用固定電容器.空白詳細規范:固定金屬化聚苯撐硫化膜鍍層表面固定直流電容器.評定級ezCold - reduced electrolytic chromium chromium oxide - coated steel
冷軋電鍍鉻氧化鉻鍍層鋼Methods of test for anodic oxidation coatings on aluminium and its alloys - measurement of total reflectance using a photoelectric reflectometer
鋁及鋁合金陽極氧化鍍層試驗方法.第11部分:光電反射計測量總反射率Specification for chromate conversion coatings on electroplated zinc and cadmium coatings
鋅和鎘電鍍層的鉻酸鹽轉化鍍層規范Chromate conversion coatings on zinc or cadmium electrodeposits. specifications and test methods
鋅或鎘電解沉積物的鉻酸鹽轉化鍍層.規范和試驗方法Preparation of copper and copper - base alloys for electroplating and conversion coatings
電鍍層和轉化鍍層用銅和銅基合金的制備分享友人