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2016年08月10日 17時28分44秒

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How to quickly fix solder that won't melt? What should be done?
2026年08月21日 09時17分36秒

The soldering iron is hot, yet even after touching the resistor lead for ten seconds or more, the solder just clumps up instead of flowing smoothly. A novice's first instinct is often to crank up the temperature. While that sometimes works, temperature isn't always the root cause; in many cases, increasing the heat only burns the flux and pads, potentially ruining the component leads in the process

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