Pistol Grip Soldering

Soldering gun – Mud Clarifier – Hydraulic Drilling Rig TR300

Applications
Soldering guns are used where more heat is needed than from pencil-style soldering irons. They can be used for heavy electrical connections, stained glass assembly, and light sheet-metal work. Typical soldering guns are rated between 100 and 240 watts power. A gun may include a two-stage trigger to give two heat settings. Consumer soldering guns are often packaged with accessory tips intended for cutting and shaping plastic.
Soldering guns may be used to solder the small SMD components, after replacing the default thick wire with a thin one. If the wire loop is bent into a rectangular shape, the gun can be used to solder 14- and 16-pin 1.27 mm pitch SMD packages in about 8 seconds by heating all pins at once.
The tip shape, in the form of a wire loop, is advantageous for getting into confined space; the tip can be rotated to get into a gap between neighbouring components. This is not practical with the cone shape of a usual soldering iron. Temperature in the soldering gun is regulated manually by holding the button until the solder melts, and then releasing it. When the solder is about to start solidifying, the button is pressed again, and so on. An experienced worker develops the skill to regulate the temperature according to need.
A disadvantage of a soldering gun is that the copper wire loop slowly dissolves in the solder and has to be regularly replaced. The soldering gun generates an electromagnetic spike when the button is released, which can be a problem for electromagnetically-sensitive devices. The spike can be seen when a high-efficiency LED is soldered, as the LED flashes. Soldering guns produce too much heat for joints on printed circuit boards. The heavy magnetic field produced by the tip can attract and hold small ferrous metal pieces (screws, etc.). History
A 1948 advertisement for a Weller soldering gun
Pistol-grip electrically-heated soldering tools had been used since the 1920s. In 1941 Carl E. Weller invented and later obtained US Patent 2405866 for a transformer-type soldering tool, which heated up rapidly. Unlike other electrically-heated tools of the time, his soldering gun used a copper heating element, directly heated by a current of hundreds of amperes produced from a small transformer in the body of the gun. The relatively small mass of the copper element heated rapidly and cooled off quickly when the trigger was released. Weller formed a company to manufacture and sell his invention commercially in 1946. The Weller company was bought in 1970 and merged into the Cooper Industries group. See also
Helping hand (tool)
Solder
Soldering iron References
^ Weller, Carl E., “Electrical Heating Apparatus” US 2405866, filed July 14, 1941, issued August 1946.
^ Luckett, Hubert (May 1963). “Have Gun Will Solder”. Popular Science Magazine 182 (5): pp. 163165, 191. ISSN 0161-7370. http://books.google.ca/books?id=uSADAAAAMBAJ&pg=PA163. 
^ http://www.fundinguniverse.com/company-histories/Cooper-Cameron-Corporation-Company-History.html retrieved 2009 Oct 19
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Types of tools
Cutting tools
Blade  Bolt cutter  Broach  Ceramic tile cutter  Chisel  Coping saw  Countersink  Diamond blade  Diamond tool  Drill bit  Endmill  File  Fretsaw  Froe  Glass cutter  Grater  Hacksaw  Hand saw  Knife  Milling cutter  Miter saw  Pipecutter  Plane  Razor  Reamer  Saw  Scalpel  Scissors  Slasher  Surform  Switchblade  Tap and die  Tool bit  Utility knife  Water jet cutter  Wire cutter  Wire stripper
Garden tools
Adze  Axe  Billhook  Bow saw  Cultivator  Earth auger  Edger  Garden fork  Garden hose  Garden trowel  Hedge trimmer  Hoe  Hori hori  Irrigation sprinkler  Lawn aerator  Lawn mower  Lawn sweeper  Leaf blower  Loppers  Machete  Mattock  Pickaxe  Pitchfork  Plough (plow)  Post hole digger  Pruning shears (secateurs)  Rake  Roller  Rotary tiller  Scythe  Sickle  Spade  Splitting maul  String trimmer
Hand tools
Block plane  BNC inserter/remover  Brace  Bradawl  Breaker bar  Broom  Brush  Card scraper  Caulking gun  Clamp  Crimping pliers  Crowbar  Fish tape  Hammer  Hawk  Hex key  Locking pliers  Mallet  Miter box  Nut driver  Pipe wrench  Pliers  Punch  Punch down tool  Putty knife  Ratchet  Scratch awl  Screwdriver  Sledgehammer   Sponge  Squeegee  Staple gun  Stitching awl  Torque wrench  Trowel  Upholstery hammer  Wrench (spanner)
Machine tools
Broaching machine  Drill press  Gear shaper  Grinding machine  Hobbing machine  Jig borer  Lathe  Metalworking lathe  Milling machine  Planer  Screw machine  Shaper  Turret lathe
Power tools
Angle grinder  Band saw  Belt sander  Blow torch  Chainsaw  Chop saw  Circular saw  Concrete saw  Crusher  Cutting torch  Die grinder  Drill  Glue gun  Grinding machine  Heat gun  Impact wrench  Jigsaw  Jointer  Nail gun  Radial arm saw  Random orbital sander  Reciprocating saw  Rotary tool  Router table  Sander  Scroll saw  Soldering gun  Soldering iron  Steam box  Table saw  Thickness planer  Welding  Wood router  Wood shaper
Measuring &
Alignment tools
Caliper  Jig  Micrometer  Pencil  Plumb-bob  Ruler  Sliding T bevel  Spirit level  Square  Tape measure
Other
Antique tools  Halligan bar  Kelly tool  Ladder  Thau claw  Toolbox  Vise  Workbench Categories: Brazing and solderingHidden categories: Articles to be merged from January 2010 | All articles to be merged
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