美女被免费网站视频九色-美女被啪到哭网站在线观看-美女被拍拍拍拍拍拍拍拍-美女被色-4438x亚洲最大-4444狠狠

你現在的位置:首頁>企業動態

點膠機的針頭與膠水使用時應該注意啥?

瀏覽:0
  本身就是控制分配膠機吐痰和吐出的設備,因此使用點膠機勢必影響到電動膠的質量問題解決:膠方面的膠水,膠水不能有氣泡,小氣泡會導致大量的焊盤沒有膠水,空現象,可能導致不合格的產品。
  It is the equipment to control the spitting and spitting of the dispensing glue machine. Therefore, the use of the dispensing machine will inevitably affect the quality problem solving of the electric glue: the glue in the aspect of glue, the glue can not have bubbles, small bubbles will lead to a large number of pads without glue, empty phenomenon, which may lead to unqualified products.
  所以每更換一半的膠管必須是空接頭,關于膠的固化,一般廠家都給出了一個溫度曲線。在實踐中應盡量選擇溫度高的固化,使固化后的膠水達到強度要求。
  Therefore, every half of the rubber tube to be replaced must be an empty joint. For the curing of rubber, the general manufacturer has given a temperature curve. In practice, high temperature curing should be selected as far as possible to make the cured glue meet the strength requirements.
  膠液的粘度直接影響著膠液的質量。粘度較大時,則膠點會變小,甚出現拉絲現象;粘度小,膠點會變大,然后可能會滲透到焊盤上。在上膠過程中,應根據膠水的粘度不同,選擇合理的背壓和上膠速度。
  The viscosity of glue directly affects the quality of glue. When the viscosity is large, the glue point will become smaller, or even wire drawing will occur; when the viscosity is small, the glue point will become larger, and then it may penetrate into the pad. In the process of gluing, the reasonable back pressure and gluing speed should be selected according to the viscosity of glue.
  除去膠水對外界環境的影響,關于點膠機本身,一般企業使用的點膠機是使用螺桿泵供應點膠針。
  To remove the impact of glue on the external environment, as for the dispensing machine itself, the general enterprise uses a screw pump to supply dispensing needles.
  因此,需求采用恒壓螺桿泵保證供膠,如果壓力過大,容易造成膠水溢出,膠量過多;壓力過小會出現點膠間歇、漏膠的現象,進而造成缺點。
  Therefore, the constant pressure screw pump is required to ensure glue supply. If the pressure is too large, it is easy to cause glue overflow and excessive glue amount; if the pressure is too small, it will cause intermittent dispensing and glue leakage, which will cause defects.
  所以應根據膠水的不同質量,點膠機工作環境的溫度來選擇壓力。較高的環境溫度會使膠水的粘度變小,流動性更好,這時需要降低背壓以保證膠水的供應,反之亦然。
  Therefore, the pressure should be selected according to the different quality of glue and the temperature of dispensing machine working environment. Higher ambient temperature will make the viscosity of glue smaller and the fluidity better. At this time, it is necessary to reduce the back pressure to ensure the supply of glue, and vice versa.
  在實踐中,我們認為針的內徑應該是點膠點直徑的1/2,這是更理想的點膠方式。因此,在點膠過程中,應根據PCB上焊盤的大小選擇點膠針,以保證點膠點的質量,提高生產功率。
  In practice, we think that the inner diameter of the needle should be 1 / 2 of the diameter of the dispensing point, which is the most ideal way of dispensing. Therefore, in the dispensing process, the dispensing needle should be selected according to the size of the pad on the PCB to ensure the quality of the dispensing point and improve the production power.
濟南雙組份打膠機
  不同的點膠機選用不同的針,有些針有一定程度的停止。校正針與印刷電路板之間的距離,即, z軸高度校準,應該在每一個操作的開始,這往往是簡單地忽略。
  Different dispensing machines choose different needles, some of which stop to a certain extent. The distance between the calibration pin and the PCB, i.e. z-axis height calibration, should be at the beginning of each operation, which is often simply ignored.
  根據操作經驗,焊點的直徑應該是焊盤距離的一半,貼片后的接點直徑應該是接點直徑的1.5倍。
  According to the operation experience, the diameter of the welding spot should be half of the distance between the pads, and the diameter of the contact after mounting should be 1.5 times of the diameter of the contact.
  這確保了有足夠的膠水來粘合元素,并防止太多的膠水浸透墊。由螺桿泵的旋轉時間多少來確定實踐的長度,應根據室溫、膠的粘度來選擇泵的旋轉時間。
  This ensures that there is enough glue to bond the elements and prevents too much glue from soaking the pad. The practical length is determined by the rotation time of the screw pump. The rotation time of the pump should be selected according to the room temperature and the viscosity of the glue.

上一篇:自動打膠機打膠不飽滿的原因有哪些?
下一篇:如何解決灌膠機遇到膠水不一致的問題?

  • 微信
主站蜘蛛池模板: 欧美伦理一区二区三区 | 曰批免费视频播放在线看片二 | 成人看片黄a免费看视频 | 午夜第一页 | 欧美超级碰碰 | 免费观看视频成人国产 | 国产黄视频在线观看 | 伊人欧美在线 | 男女视频免费在线观看 | 精品一区久久 | 99视频精品全部在线播放 | 天天摸夜夜添久久精品麻豆 | 理论片毛片 | 日韩精品视频在线播放 | 免费一级毛片在线播放放视频 | 免费的涩涩视频 | 国产成人一区二区在线不卡 | 国产成人自啪精品视频 | 亚洲成av人片天堂网 | 美女视频永久黄网站免费观看韩国 | 国产精品午夜久久 | 免费看特级淫片日本 | 欧美人猛交日本人xxx | 亚洲精品高清中文字幕 | 91短视频在线观看手机 | 国产在线观看成人 | 亚洲va老文色欧美黄大片人人 | 在线观看片成人免费视频 | 久久精品国产欧美日韩99热 | 免费黄色一级 | 国产成人精彩在线视频50 | 日日摸人人拍人人澡 | 女攻高h全肉污文play | 国产日韩欧美一区二区 | 日本xxxx色视频在线观看免 | 亚洲你懂的 | 日本中文字幕一区二区有码在线 | 亚洲另类激情专区小说婷婷久 | 欧美日韩国产一区二区三区不卡 | 天天怕夜夜怕狠狠怕 | 欧美国产日本 |