• <video id="1qvqn"><ol id="1qvqn"><pre id="1qvqn"></pre></ol></video>
  • <b id="1qvqn"><meter id="1qvqn"><tfoot id="1qvqn"></tfoot></meter></b>

        1. <cite id="1qvqn"></cite>

          Quzhou Chuante Electronic Technology Co. Ltd.

          Location:News Center > Industry news > The article body

          • 4.0 the PCB industry produced what challenges
          • Release time: 2015-03-27  
          • Tin leveled board in the production of a product, (is), the production of the first side, on the tin is good, no problems at all. But the second plane production, refuse to welding in PCB, (such as the attachment). Through the analysis, because this is a question of PCB material, but the good side one tin, because what reason caused this? The answer:1. Limited by design, can only start production the first side (TOP), production after the second surface (BOT). Do with scrap PCB test, however, did not produce the first side of the board, directly print BOT surface tin, OK after furnace, and not the phenomenon of welding. Also ever changing different brands of solder paste, and repeatedly tried to adjust temperature. But bad product is more and less differences, unable to put an end to bad product.2. The problem of fruit out of furnace temperature setting and solder paste, the possible existence of the original ?
          • Previous:CS's CS Field Expansion
            Next:Double-sided single-sided tin plate tin bad how to deal with
          • Back
          Address: NO.8,JINCANG ROAD. KECHENG,QUZHOU Tel: 86-570-8033868
          Fax: 86-570-8033611 Email: pcb.cassie@ctpcb.com
          Coptyright © 2015-2018 www.hitew.com.cn All Rights Reserved. Quzhou Chuante Electronic Technology Co.,Ltd.
          国产麻豆福利在线观看,亚洲AV无码潮喷在线观看,日本人妻中文字幕久久久,亚洲无码精品黄色电影
        2. <video id="1qvqn"><ol id="1qvqn"><pre id="1qvqn"></pre></ol></video>
        3. <b id="1qvqn"><meter id="1qvqn"><tfoot id="1qvqn"></tfoot></meter></b>

              1. <cite id="1qvqn"></cite>