推荐回答（4个）
复制过来的可能有点错位，你去原版看看吧，或许对你有帮助
热固性粉末涂料常见施工故障处理
与喷涂工件之间的吸附性差或喷后易掉粉 无高压或高压不足 修理静电设备或调整电压
工件和静电发生器接地不良 检查所有接地点
气压过高，喷粉太猛烈 调整喷枪气压
喷枪距工件太远 调整喷枪位置
喷涂室抽风量过大 减少吸风量
工件内角存在静电屏蔽效应 调整电压、气流或改用摩擦枪
工件表面有绝缘层 出去绝缘层
粉末颗粒分布不佳 更换品质好的粉末
涂层厚度不稳定，上粉不足或过多 喷枪出粉量不符合要求 调整出粉量
喷涂时间不佳 控制喷涂时间
静电高压不稳定 稳定高压
输送气流不稳定 稳定气流
粉末与喷涂设备不适应 调整设备及工艺
粉末受潮或高温结块 更换品质好的粉末
涂膜太厚 减少涂膜厚度
粉末涂料遮盖率差 更换粉末
涂膜附着力及机械强度不足 固化温度不足，时间不足或严重烘烤过度 调整固化温度时间
表面处理不当 改进表面处理工艺
涂膜过厚 减少涂膜厚度
工件不适应喷涂 改变喷涂工艺方法
粉末质量差 更换新粉
涂膜有缩孔针孔、气泡或表面缺陷 表面处理不当，除油不彻底，水洗后未彻底干燥 调整预处理工艺
压缩空气存在水、油 使用油水分离器除油除水
异物污染粉末 清洁回收系统或更换新粉
工件有气孔、杂物 工作面作表面处理
粉末质量存在问题 检查粉末挥发份并更换新粉
涂抹表面有粒子或异物 工件表面不干净，不平整或有机械损伤 对工件表面进行再处理
前处理、磷化不好，水洗不干净 调整前处理工艺
粉末质量存在问题 更换新粉
涂膜流挂 加热速度、温度太低 控制正确固化温度
涂层厚度太厚 减少厚度，均匀喷涂
粉末质量指标“溶流”性能超范围 更换粉末
涂膜桔皮 加热速度，温度过高或太低 正确固化温度、时间
喷涂涂层太薄或太厚 均匀喷涂
静电设备影响 更换喷涂设备
粉末质量指标“焦化”时间过短 更换粉末
涂膜光泽不足和色泽不均 固化烘烤时间过长，温度过高 调整固化温度，缩短时间
有其他粉末或异物混入 清洗设备，采用新粉
烘烤时有其它挥发性气体 排除外部气体干扰
前处理不当 除锈、除油干净，水洗后烘干
喷涂固化设备或环境清洁卫生不良 清洁全过程，更换新粉
回收粉使用多 回收粉经过处理后再使用
粉末涂料粒度过粗或有异物 过筛或更换新粉
粉末涂料出现针孔现象很常见,这是由于涂料的表面张力太高造成流不平现象,可以通过添加流平剂,采用低玻璃化温度的粉末来提高流动性,还可以提高温度
用好一点质量的粉末，是不会有针孔的，可按照你工件的施工条件定制。
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