Their goal was to observe at the atomic level how the metal melts.

At each stroke of fire, metal smoked, then melted and ran.

But the heat was so intense, he said, that the metal close in has probably melted.

The fire had burned so hot that even metal must have melted.

They burned the trees on the mountain to reach the gold, but the metal melted and flowed away.

So near, its metal would melt and boil away as vapor.

He had placed the item against the lock; the metal around it turned red and now was melting away.

This makes the metal get really hot and melt where it is pinched together.

These kinds of welding can get hot, but they do not make the metal melt.

The metal melted faster, sliding to the floor in a silver stream.