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Thermocouple Mini Weld - Welding Unit
The MINI-WELD is a miniaturised capacitor discharge welder for rapid attachment of thermocouple wires to work-pieces.
Although the MINI-WELD is very small and lightweight, it has all the capabilities of units many times larger and heavier. It is supplied in a durable pouch and can be conveniently carried about and operated while clipped to the operators’ belt.
Technical Description:
The MINI-WELD causes a brief pulse of high current to flow through the circuit, and welds the thermocouple wire to the work piece. The electrical energy comes from the batteries and the unit converts the low-voltage, low current power to a higher-voltage (suitable for welding) charge in an energy storage capacitor. The conversion and sequencing is supervised by a microprocessor.
The MINI-WELD takes a few seconds to build up the charge to the level selected. When the unit is fired, the stored energy is released. Because the electrical resistance of the supply wires is so low, the stored energy can deliver a brief pulse of current in excess of 1,000 amps to the weld. The weld penetration on the work piece is minimal only 0.18mm. The Heat Affected Zone (HAZ) is only 0.28mm causing no damage to the work piece other than a small blemish, which can be easily removed.
Specification
- SIZE: 157mm (H) x 95mm (W) x 45mm (D), WEIGHT: 740 g,
- BATTERIES: 4 AA 1.5V single use disposable alkaline cells or 4 AA 1.5V rechargeable alkaline cells, WELD VOLTAGE: Adjustable between 65 and 100V (equivalent to 20 to 50 joules), CYCLE TIME: Approximately 15 seconds per weld at 30 joules, ENDURANCE: Approximately 250 welds of 30 joules from new batteries
- PROTECTION: IP30.
The MINI-WELD is not waterproof and should be protected in wet conditions, SAFETY: BSEN 1010-1:1993, EMC: BSEN 50081-1:1992 BSEN 50082-1:1998
This unit is ideal for working in confined space.
