緻密鍍層 的英文怎麼說
中文拼音 [zhìmìdùcéng]
緻密鍍層
英文
close coating-
The great amount of stabilizing agent led to the non - uniform of the plating layer. the addition of the high polymer could decrease the size of silver particles and help to increase the dispersibility of powders
採用高銅鍍液,鍍覆表面金屬顆粒降至2 3urn ,形成一層緻密連續的銅銀共沉積的金屬膜層。The results show that proper control the motion mode of the particle in plating results in many strengths of the nickel films, such as good uniformity, high compactness, and strong interfacial adhesion
濺射鍍膜時,通過控制空心微珠的運動方式,在空心微珠表面沉積了一層均勻性好、附著力強和緻密性好的金屬鎳膜。Seen from the experiment result, it is clear that the deposited coating obtained with the trivalent chromium electrodepositing method we use is smooth, homogeneous, dense, and has good unti - erosive ability, high stiffness. the color ol ihe deposited coaling ol irivalent chromium is similar with that of hexavalent chromium. further more, this process has a good ability of homogeneous and deep depositing with simple facility, high current efficiency, and wide working current flow and even more it avoids environmental pollution
實驗結果表明,本文採用的三價鉻鍍鉻方法能電鍍出鍍層光滑、均勻、緻密、抗蝕性好、硬度高的鍍層,而且解決了鍍層顏色的問題,使三價鉻鍍層不僅具有現行六價鉻鍍層的天藍色光澤,同時還具有電流效率高、均鍍能力與深鍍能力好、工作電流密度寬、設備簡單、無環境污染等特點。Hot shock and cathode electrolysis experimental results indicate the interface adhesion strength between coating and aluminum matrix is excellent. the element electronic probe image provide that the two composition are co - deposition ; structure analysis by xrd ( x - ray diffraction ) demonstrated that cr exists in the way of solid solution in the coating
Sem和金相觀測結果表明浸鎳后鍍層結晶緻密、厚度均一;熱震及陰極電解結果說明鍍層與基體結合牢固緊密;鍍層元素電子探針掃描圖說明鎳鉻兩種元素均勻沉積; xrd分析證明鍍層中鎳鉻以固溶體的形式存在。The pretreatment, effect of bath compositions and operation conditions such as temperature, currenty and time on compactness of the zinc and cu / ni / cr coatings have been investigated. the relationship of operation conditions to thickness of the coatings was studied by weight method. the specimens have been pickled in nacl or sulfate acid solution to evaluate the porosity of the coating
研究了鎂合金電鍍前處理工藝,電鍍鋅、電鍍銅/鎳/鉻工藝配方及其施鍍溫度、電流密度和時間對鍍層緻密性的影響;採用稱重法研究施鍍工藝與鍍層厚度的關系,利用nacl溶液和硫酸溶液浸泡試樣來考察鍍層孔隙率,採用劃痕試驗和熱震試驗檢驗鍍層的結合力,採用金相顯微鏡和掃描電子顯微鏡觀察鍍層表面形貌。Brass wires are winded between two metallic electrodes located in a vacuum chamber, where 2 m thickness films are deposited onto the substrate glass after explosive wires discharging
實驗結果表明:玻璃基體表面被鍍上一層緻密的銅膜,具有與金屬類似的導電性。在掃描電鏡下觀察,膜厚約為2 m 。The main experiment results are as the following. the coatings composition and microstructure are influenced significantly with the different techniques or process parameters. at - 100v low bias voltage applied to uranium substrate, all of three coatings are closely dense, while the al coatings are completely open dentritic at - 300v
在基體上施加- 100v低偏壓時, al 、 al _ 2o _ 3和al - zn鍍層三種鍍層的組織均緻密,但在- 300v偏壓時,鋁鍍層組織呈開放式結構,緻密性差。The corrosion test, performed in 5wt % salt fog or with the electrochemical calculation of anodic polarization in 50, g / g potassium chloride aqueous solution, indicates the coatings densification corresponds with their corrosion protection to uranium. the denser the coatings are, the more effective their protection to uranium is. compared with the al coatings produced at - 300v bias voltage and al _ ( 2 ) o _ ( 3 ) coatings produced with ps technique, the al coatings at - 100v and al _ ( 2 ) o _ ( 3 ) coatings with rms and to techniques are denser thus providing a better protection for uranium
電化學參數計算或鹽霧腐蝕結果表明,鍍層的緻密程度與其對鈾基體的保護性能呈現了較好的一致性:鍍層越緻密,其保護性越好,即- 100v偏壓下的鋁鍍層和rms 、 to法制備的al _ 2o _ 3鍍層;鍍層越疏鬆,其保護性越差,即- 300v偏壓下的鋁鍍層和ps法制備的al _ 2o _ 3鍍層。With plating time going on, the nano - polycrystal gathering grows in two dimensions, and the new nano - polycrystal layer appears simultaneously on the formerly formed nano - polycrystal surface. because the boundary and defect densities in quenched and tempered 45 steel is higher than those in annealed steel, the nano - polycrystal gatherings formed at its surface at the beginning of electro - deposition are more concentrated, and then their size is smaller. the microstructure of the ni - p alloy coating has closed relation with its phosphorus content with the increase of phosphorus content, the microstructure of coating turns from nano - crystalline to the amorphous
隨著施鍍時間的延長,納米晶聚晶體在橫向二維生長的同時,在納米晶聚晶體的表面上也進行著三維方向的新的一層聚晶體的生長;在調質態45鋼表面,由於其具有比較高的晶界和缺陷密度,因此在沉積初期,納米晶聚晶體的成核密度也較大,從而在二維方向聚晶體的尺度較小,鍍層沉積初期表現為緻密細小的鱗片狀組織。( 5 ) sic content in coating was 20. 11 ( vol % ). coating was fine and close. the hardness was 2. 68 times pure ni coating, and wear - resistance was 4. 1 times pure ni coating
( 5 )對所得鍍層的性能進行了檢測,鍍層中sic粒子含量為20 . 11 ( vol % )且均勻緻密;鍍層的硬度和耐磨性分別提高到純鎳鍍層的2 . 68倍和4 . 1倍;結合力實驗也表明鍍層與基體具有良好的結合力。It is with complete cell packing structure, good glass sealing, flat end face internal leads, and dense gloss of coating
管殼結構完整、玻璃封裝良好,內引線端面平整,鍍層光澤緻密。The capillary force can be dropped through vacuum drying process, and compact film with thickness of 6 u m was obtained by low spinning speed and few plating times
鍍膜次數較高時膜內易產生斷層。採用真空乾燥制度后通過低速少次就可以獲得厚度約為6 m的緻密膜。With respect to al _ ( 2 ) o _ ( 3 ) coatings production, the to and rms techniques perform much better than the ps one
採用ps法獲得的al _ 2o _ 3鍍層的表面粗糙、緻密度低, to法和rms法獲得的較好。The phytic acid has the function of complexing with metal. it easily forms a protection film of single molecular on the metal surface to obscure the contact of oxygen with the metal and prevent magnesium alloy from corrosion in the process of electroplating
添加劑植酸與金屬配合后,易在金屬表面形成一層緻密的單分子保護膜,能有效地阻止氧氣與金屬基體接觸,從而可以防止鎂合金基體在電鍍過程中的腐蝕。The results show that the improved structure has obviously reduced pressure drop and increased axial speed of the nozzle, as a result the wallop of electroplating solution is improved and the thickness of diffused layer reduced, the electrodeposition process improved, and what is more, the coating structure has been compacted, crystalline particles fined and the performance improved
結果表明,結構改進后,明顯減小了壓力損失,提高了噴嘴的抽向速度,電鍍液沖擊鍍件的沖擊力得到提高,有效地減少了擴散層的厚度,改善了電沉積過程,而且使鍍層組織緻密,晶粒細化性能得到提高。The research on the phenomenon of magnetization of the ions in bath show that under the influence of electromagnetic field the speed of electroless deposition is much faster ; the coating thus obtained is compact in texture, contains less phosphorus that those from conventional baths ; and the physical properties of the coating are also improved to a greater extent
摘要通過對溶液中離子磁化現象的研究,在電磁場作用下,化學鍍沉積速率加快,所得鍍層結構緻密,鍍層中磷含量比常規化學鍍探液的降低,鍍層的物理性能也得到了較大的改善。分享友人