USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 2/TASK 1
(2) Nonelectric Soldering Iron. A nonelectric soldering iron (figure
56 above) is sized according to its weight. The commonly used sizes are the
1/4, 1/2, 3/4, 1, 1 1/2, 2, and 2 1/2 pound irons. The 3, 4, and 5 pound
sizes are not used in ordinary work. Nonelectric irons have permanent tips
and must be heated over an ordinary flame, or with a blowtorch.
c. Use of Soldering Iron.
(1) Tinning. Before any soldering iron can be used, the faces of the
tip must be filed smooth and tinned (coated with solder).
work, a soldering iron is tinned on all four faces. For work where the iron
is held under the object to be soldered, as when soldering wire splices,
only one face is tinned (figure 57 on the following page). Molten solder on
a tip with all faces tinned will not remain on the upper face, but will run
to the bottom, forming a drop.
When only one face is tinned (that face
turned up), solder melted upon it will not drip off.
Tin an electric
soldering iron as indicated in (a) through (d) below.