Explanation: A "hot gas bonder," more commonly known as a hot air rework station, uses a precisely controlled stream of heated air or gas to melt solder. This method allows for the melting of solder on components, especially surface-mount devices (SMDs), without making direct physical contact. This non-contact approach is crucial for safely removing or attaching sensitive components with many small leads. Therefore, option B is correct: it's used for the non-contact melting of solder. Option A describes feeding solder wire to a conventional soldering iron. Option C describes a production-level process that a localized hot gas bonder does not inherently facilitate. Option D is incorrect because LCA (Light-Curing Adhesive) is cured by UV light, not hot gas.