31. She dies from an infection, although Den was kind enough to cauterize the wound with a soldering iron . 32. Then in January 1994 an errant spark from a soldering iron caused a fire that gutted the building. 33. Even that will not be enough because the metal will start to oxidize while gathering the soldering iron . 34. A source of heat, usually a soldering iron , is needed to melt the solder and heat metal parts. 35. :The electronics need not be especially hard, if you know which end of a soldering iron is which. 36. Simple soldering like that is pretty easy-get a fine-tipped soldering iron and some solder with flux in it. 37. From upgrading experiences years ago, I knew that I could leave the soldering iron in the tool box. 38. Different equipment is usually required since a soldering iron cannot achieve high enough temperatures for hard soldering or brazing. 39. It is strange that a technology that produces such sophisticated results began with an accident involving a soldering iron . 40. In addition, Mao said he was exposed to noxious fumes from chemical cleansers and the smoke of soldering irons .
