0.2的焊盘锡膏颗粒选多大的 焊膏颗粒大小对焊接有什么影响？严重吗？
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\u5728\u76f8\u540c\u8d28\u91cf\u5c0f\uff0c\u7403\u5f62\u7684\u8868\u9762\u79ef\u662f\u6700\u5c0f\u7684\u3002\u8868\u9762\u79ef\u8d8a\u5c0f\u88ab\u6c27\u5316\u7684\u53ef\u80fd\u6027\u4e5f\u5c31\u8d8a\u5c0f\uff0c\u8d8a\u5c0f\u7684\u6c27\u5316\u6027\u4fbf\u5bf9\u710a\u63a5\u8d8a\u6709\u5229\u3002\u4e0d\u5b9a\u5f62\u9897\u7c92\u6ca1\u6709\u660e\u663e\u7684\u5f62\u72b6\u548c\u7ec6\u5ea6\uff0c\u8fd9\u79cd\u9521\u818f\u6709\u8f83\u5927\u7684\u8868\u9762\u6c27\u5316\u6bd4\uff0c\u6545\u710a\u63a5\u6027\u80fd\u8f83\u5dee\uff0c\u8fd1\u7403\u5f62\u5219\u4ecb\u4e8e\u4e24\u8005\u4e4b\u95f4\uff0c\u6240\u4ee5\u5e94\u5bf9\u9009\u62e9\u7403\u5f62\u6216\u8fd1\u7403\u5f62\u7684\u9521\u818f\u3002
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4号粉 直径大约在20-38um
5号粉 直径大约在10-15um
推荐5号粉锡膏
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