日本免费在线一区,在线91精品国产免费,无码一二区,亚洲国产精品自在拍在线播放,日韩无码中文字幕av,欧美精品国产,日韩精品一级无码毛片视频免费,精品无码一区二区三区久久,99精品国产91久久久久久无码,久久99国产精品亚洲

              Welcome to Shenzhen Tengfei Huang Plastic Mold Products Co., Ltd. official website!
              Hot Keywords: mold design and manufacturing, injection molding processing, automatic painting, vacuum plating, laser engraving, bronzing, all kinds of silk screen, UV silk screen, pad printing, water transfer printing...                                                                            

              Address: Shenzhen City, Baoan District Xixiang Shu Donghua third industrial zone B building 7 floor

              Telephone: 0755-2908-2001/2003

              Fax: 0755-2908-2001

              Q Q:540775041

              Mailbox: 540775041@qq.com

              URL: www.bjqingguo.com

              Industry News
              Your location:Home ? 新聞資訊 ? Industry News

              Introduction and Advantages of Vacuum Plating for Tengfeihuang Plastic Products

              發(fā)布時(shí)間:2019-01-16

              Vacuum coating is an important aspect of vacuum applications. It is based on vacuum technology, using physical or chemical methods, and absorbing a series of new technologies, such as electron beam, molecular beam, ion beam, plasma beam, radio frequency and magnetron, to provide a new technology for film preparation for scientific research and practical production. Simply put, the method of evaporating or sputtering metals, alloys or compounds in vacuum to solidify and deposit them on the coated objects (called substrates, substrates or substrates) is called vacuum coating.

              It is well known that, as long as a thin film is coated on the surface of some materials, many new and good physical and chemical properties can be obtained. In the 1970s, electroplating and electroless plating were the main methods of coating on the surface of objects. The former is electrolyzed by electrifying the electrolyte, and electrolytic ions are plated on the surface of the substrate as another electrode. Therefore, the condition of this coating is that the substrate must be a good conductor of electricity, and the thickness of the film is difficult to control. The latter is the chemical reduction method. The film must be prepared into a solution and can take part in the reduction reaction quickly. This coating method not only has poor bonding strength, but also is not uniform and easy to control. At the same time, it also produces a large number of waste liquids, causing serious pollution.Therefore, these two plating processes, which are called wet plating, are greatly limited.

              Vacuum coating is a new kind of coating technology developed in comparison with the wet coating method mentioned above. It is usually called dry coating technology.


              Compared with wet coating technology, vacuum coating technology has the following advantages:

              (1) Thin films and substrates are widely selected. The thickness of thin films can be controlled to prepare functional films with various functions.

              (2) Thin films are prepared in vacuum. The environment is clean and the films are not easily polluted. Therefore, thin films with good compactness, high purity and uniform coating can be obtained.

              (3) The bonding strength between the film and the matrix is good and the film is firm.

              (4) Dry coating produces neither waste liquor nor environmental pollution.

              Vacuum plating technology mainly includes vacuum evaporation plating, vacuum sputtering plating, vacuum ion plating, vacuum beam deposition, chemical vapor deposition and other methods. In addition to chemical vapor deposition, other methods have the following common characteristics:

              (1) All kinds of coating technologies need a specific vacuum environment to ensure the movement of vapor molecules formed in the process of heating, evaporation or sputtering, not to be impacted, blocked and interfered by a large number of gas molecules in the atmosphere, and to eliminate the adverse effects of impurities in the atmosphere.

              (2) All kinds of coating technologies need to have an evaporation source or target in order to convert evaporating materials into gases. With the continuous improvement of source or target, the selection range of film-making materials has been greatly expanded. Whether metal, metal alloy, intermetallic compound, ceramics or organic substances, all kinds of metal and dielectric films can be evaporated, and multi-layer films can be obtained by evaporating different materials at the same time.

              (3) Evaporated or sputtered film-making materials can measure and control the film thickness accurately in the process of forming film with the workpiece to be plated, so as to ensure the uniformity of film thickness.

              (4) Each film can precisely control the composition and mass fraction of residual gases in the coating chamber through a fine-tuning valve, thus preventing the oxidation of evaporating materials, reducing the mass fraction of oxygen to a minimum, and filling inert gases, which is impossible for wet coating.

              (5) Because of the continuous improvement of the coating equipment, the continuous coating process can be realized, thus greatly improving the output of products, and in the production process, no pollution to the environment.

              (6) Because of the high purity, good compactness and bright surface of the film, the mechanical and chemical properties of the film are better than those of the electroplated film and the chemical film.


              Online Service

              WeChat
              Support Hotline 755-2908-2001
              毛片在线播放a| 国产爆乳成av人在线播放| 最新精品在线| 国产传媒86精品网站| 中文字幕无码专区人妻系列| 中文字幕人妻av一区二区| 毛片视频网站在线观看| 午夜精品福利在线观看| 天堂一区人妻无码| 成a人片在线观看视频| 加勒比精品无码AV专区| 大地资源中文第二页日本| 最新国产亚洲欧美| 99这这里只有精品| 精品国产乱码久久久久久1区2区| av影片不卡的| 一区二区三区国产欧美日韩精品| 日本高清色视频v| xxxx日本在线免费看| 999热精品这里在线观看| 国产成人精品1024| 久久一级片免费网站| 日日狠狠久久8888偷偷色| 亚洲人成人伊人成综合网无码| аⅴ天堂 在线8| 亚洲av激情男人的天堂超碰| 欧美5o老妇性xxx| AV网站手机在线观看| 久久伊人亚洲| 国产精品欧美一区二区三区不卡| 精品国产av一区二区三区| 久久涩亚洲国产综合精品一区不卡| 亚洲AV无码成人网站国产网站| 婷婷中文字幕在线| 人妻久久播一区| 日本亚洲成人影院| 亚洲一区成人av| 黑人区在线s级黄欧美成人| 香蕉这里只有精品| 精品久久久久久久高清| 国产夜夜夜夜夜夜|