清洁毛刷电子制造

精密电子元器件超声波清洗配套方案

Precision Electronic Component Ultrasonic Cleaning Support Solution

客户挑战 / Challenge

某PCB制造商在回流焊后发现板上残留助焊剂和微小锡珠，传统尼龙刷手工刷洗效率低且容易产生ESD静电损坏。返修率高达5%，客户投诉集中在焊点污染导致的电气短路。

A PCB manufacturer found flux residue and micro solder balls after reflow soldering. Manual nylon brush cleaning was slow and risked ESD damage. Rework rate was 5%, with customer complaints focusing on electrical shorts from joint contamination.

解决方案 / Solution

定制防静电清洁毛刷（表面电阻10⁶-10⁹Ω）配合在线超声波清洗机使用。刷丝采用导电碳纤维填充PA6材质，直径0.08mm超细丝径可深入0.3mm pitch的BGA焊球间隙。刷柄设计为标准气动快换接口，可集成到自动化产线。

Custom ESD-safe cleaning brushes (surface resistivity 10⁶-10⁹Ω) for use with inline ultrasonic cleaners. Bristles use conductive carbon-filled PA6 at 0.08mm ultra-fine diameter, reaching into 0.3mm pitch BGA ball gaps. Standard pneumatic quick-connect handle for automated line integration.

实施效果 / Results

PCB返修率从5%降至0.3%，ESD损坏率降至零。单板清洁时间从120秒（手工）降至25秒（自动），产线速度提升至设计产能的110%。年节省返修成本约180万元。

PCB rework rate dropped from 5% to 0.3%, ESD damage down to zero. Per-board cleaning time reduced from 120s (manual) to 25s (automated). Line speed reached 110% of designed capacity. Annual rework savings of ~$250,000.