116SRL Thermocouple Welder

• Features-Pictures How-To-Use
  • Control- Incorporates Nine Time-Current Combination
  • Reliability-Produces Perfect Thermocouple Welds of
  • Extremely High Integrity. Thermocouples Vary Less Than
  • 0.01°C From One to Another at Room Temperature
  • Portability-Weighs Ten Pounds
  • Economy-Tungsten Inert Gas Welding Eliminates
  • Filter Rod, Flux or Special Pre-Weld Procedures
  • Range-Welds Wire Sizes From 55 to 20 AWG in Any Material-Size Combination
  • PDF Data Sheet

General: The Model 116 SRL has three position switches for both current and time cycles. The combination of these switches yields nine distinct power-time ratios which allow parallel wire welding from 55 to 20 AWG in any material. Because no third metallic material is employed in making these junctions, and because the two different thermocouple wire compositions are completely alloyed in the junction, thermocouples made by the SRL exhibit less that 0.01°C variation from one couple to the next at the same temperature.

Principle: The Tungsten Inert Gas Arc is energized to the specified temperature level for the correct length of time by the power supply unit which incorporates three positions switches for both weld time and weld current. Once the switches are set welding is accomplished when the arc is fired through the argon-protected gap which heats the metal to a molten state. When the energy is automatically interrupted, the metal cools into a weld junction of high integrity.

Application: Parallel wire welding capabilities can be tested by producing thermocouple junctions in all combinations of the usual thermocouple materials in size ranges from 55 to 20 AWG. In the fine wire tests, it is necessary to use the minimum position for both weld time and weld current and, additionally, to pull the holding device away from the face of the welder as soon as the arc starts. This technique is learned easily and is necessary only for wire sizes less than 48 AWG. The upper limit in weldment size is determined at 20 AWG (.0319") copper pairs, the resulting bead size being 0.06" diameter. It is possible to make larger weldments in other materials.

Additional: Tube closures in ferrous and non ferrous materials from capillary size to 0.06" diameter can be welded. Stranded wire and materials of low columnar strength can be welded easily and safely.

        Typical Materials and Configurations Welded
        Thermocouple Type:
        "E"      CHROMELŪ/Constantan        "R/S"  Platinum/Platinum-Rhodium
        "T"      Copper/Constantan                   "C"    Tungsten/Tungsten-Rhodium
        "K"      CHROMELŪ/ALUMELŪ                    Iridium/Tungsten
        "J"      Iron/Constantan                                     Iridium/Iridium-Rhodium


       Structural Sealing and Mechanical Applications
       Stranded Wire, Tubing, Rods and Bars, Ferrous and Nonferrous
       Metals including Titanium, Gold and Silver.    

PDF Data Sheet | Wire Selection Guide | Strippers

CHROMELŪ and ALUMELŪ are registered trademarks of Hopkins Manufacturing Company

ANY STATEMENT AS TO PRODUCT COMPLIANCE WITH APPLICABLE LAW (INCLUDING WITHOUT LIMITATION, THAT PRODUCTS ARE Pb-FREE OR RoHS COMPLIANT) IS AS PROVIDED BY ITS SUPPLIERS, AND B. J. WOLFE ENTERPRISES DOES NOT WARRANT ITS ACCURACY AND WILL NOT BE LIABLE FOR ANY ERROR WITH REGARD TO SUCH INFORMATION.  CUSTOMER USES THE INFORMATION AT ITS OWN RISK.  PRICES SUBJECT TO CHANGE WITH NOTIFICATION.

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(800) 554-1224, (818) 889-8412, Fax (818) 889-8417 or email:  info@bjwe.com

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