銅基層金屬 的英文怎麼說
中文拼音 [tóngjīcéngjīnzhǔ]
銅基層金屬
英文
co er as base metal-
In this paper, pan based metal gradient composites films ( pmgcf ) were prepared by electrochemical reduction. the effect of polymer matrix on pmgcf and preparation and its forming mechanism of pmgcf were invested, they are as follows : lacrylonitrile - methyl - methacrylate copolymer, acryonitrile - itaconic acid copolymer, acrylonitrile - methyl methacry late - sodium allyl sulfonate terpolymer have been synthesized seperately in order to analyze the effects of the mma monomer unites and the hydrophilic unites of acryonitrile terpolymer on the process of copper deposition in polyacrylonitrile - based metal gradient composite film ( pmgcf ) as well as the flexibility of the film
其內容如下： 1通過合成的丙烯腈?甲基丙烯酸甲酯二元共聚物（ p （ an - mma ） ） ，丙烯腈?亞甲基丁二酸二元共聚物（ p （ an - ita ） ） ，丙烯腈-甲基丙烯酸甲酯?丙烯磺酸鈉三元共聚物（ p （ an - mma - as ） ）分別作為基體制備了聚合物基金屬梯度復合膜材料（ pmgcf ） ，以分析加入的mma基團和親水性基團對pmgcf沉積層中金屬銅的梯度分佈形態和膜的柔韌性的影響。The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。( 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。Powder - metallurgy copper two - metals friction material has a steel body and wear - resistant copper - alloy thin coating. its frictional factor is lower, it has good wearing resistance, csolidl self - lubrication and anti - bite
銅基粉末冶金雙金屬減摩材料是以鋼為基體，薄層銅合金為耐磨層，它具有較低的摩擦系數，耐磨性好，具有固體自潤滑成份，有良好的抗咬合性。Metal base copper - clad laminate
金屬基覆銅層壓板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 。Brass as base metal
黃銅基層金屬The result showed that the interpenetration network structure between polymeric and deposited metal has been observed under a scanning electronic microscope and optical microscope. the experiments showed that copper deposition gradient distribution and crystal structure were greatly influenced by the the ph value of electrochemical reduction medium solution and the size, number and distributing of microporous in swelling cathode film
用掃描電鏡和體式顯微鏡對制備的pmgcf進行了分析，結果表明：制備的pmgcf樣品的金屬沉積層梯度分佈均勻，在一定的電化學條件下金屬銅和聚合物基體形成了互穿的立體網狀結構。Copper as base metal
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