控制贴片质量关键因素的研究

Analysis of the key factors of Placement quality control

贴片质量的优劣一直困扰着贴片机的使用者,影响贴片质量的因素有很多,诸如贴片机自身硬件软件条件、贴片对象的质量、贴片环境的合适程度、贴片技术的娴熟程度、贴片机操作人的人为因素等等。本文从元器件选择、贴片机结构与性能两个角度阐述了其如何影响贴片质量。以元器件尺寸、端头电极与引线电极、平整度、料带等方面细述如何选择最合适的元器件以提高贴片质量,并以吸嘴为例细述了如何选择与设置贴片机吸嘴和贴片压力来提高贴片质量。对影响贴片质量的贴片位置控制也作了一定的论述。

The user of placement machine has been plagued by the good and bad of palcement quality,there are very many factors of affectting the palcement quality, such as the hardware and software conditions of placement machine, the quality of placed object ,The appropriate level of placement environment, the proficiency of placement technology, the human factors of Operator and so on. The article from two perspectives of the component selection.placement machine structure and properties elaborated how it did affect pick the place quality. By the component size, end electrode and lead wire, surface flatness, tape and reel and so on bring in detail how to select components in order to enhance the pick the place quality, Detail how to choose and set up the nozzle and pressure of SMD placement machine to enhances the pick the place quality. Also discussed the controlling of placement position for the influencing placement quality.