What is Resistance Soldering?

by Andy on October 6, 2008

Resistance Soldering Iron Not too long ago we added American Beauty soldering products, but American Beauty products aren’t just used for typical soldering but rather resistance soldering. We figured there might be some confusion about what resistance soldering is and the benefits of resistance soldering so we’ve spelled it out for you.

Resistance soldering is a type of soldering that uses special equipment to allow the user to solder faster while creating reliable joints and reducing the chances of thermal damage. The heat used in resistance soldering is both instant and localized.

Here’s how it all works…

A standard 110-120 (or 220-240) AC line voltage passes through a step-down transformer which is then converted into a low-voltage, high-amperage, AC output current. The intense heat is generated when the current passes through a resistive material. The amount of heat produced can be controlled by varying the output current as well as the type of resistive material.

Three things must be present for resistance soldering:

1. A resistive material to generate heat

2. Step-down transformer that can generate an appropriate current

3. Capability of completing an electrical circuit

So you’re probably asking what resistance soldering offers that conventional soldering can not…

  • Resistance soldering equipment heats up fast and cools down fast which prevents injury to the user and minimizes thermal damage to the application
  • Consumes less energy…the current is only used during actual soldering and there is no idle time
  • Consistently solid solder joints…improved soldering also means reliable joints and less time and money spent on rework and repairs.

For more about the details of resistance soldering visit the American Beauty website or their informational resistance soldering website.

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