Hot Junction Welding Machine is most suitable to weld the Hot Junction of a SIMPLEX / DUPLEX / TRIPLEX ungrounded and grounded Mineral Insulated (MI) thermocouples of various types, and sizes ranging from 1 mm to 6 mm. Oxidization is totally avoided as the welding process takes just few milliseconds, and with inert Gas Atmosphere. The use of ARGON inert gas for pre weld and post weld times does not allow the junction to oxidize at all. The welding is done stored energy, rater than the current, forming a weld as a beautiful bright bulb, and is immune to power supply variations and changes.

A Capacitor bank is charged to the required voltage, monitored digitally, depending on the Energy requirements, according to the size and type of thermocouple. Two more additional capacitor banks can be added for thick wires. Actuation of the START switch purges Argon for predefined time, (pre-welding), the ARC strikes, discharging Heavy current through the joint fusing the same, forming a bulb, thus completing the welding. The Argon continues to flow for predefined time (post weld time) cooling the thermocouple, avoiding oxidization. Same method is adopted for Duplex / Triplex Thermocouples, with fine adjustment of torch. 
The thermocouple is prepared and adjusted properly, in a special fixture. Welding torch and can be moved in both X and Y direction with very fine Lead screw type of precise arrangement, for accurate positioning, for welding Simplex, Duplex, Triplex thermocouples. The UP / DOWN movement with locking facility allows the torch movement vertically. All these functions make the welding of DUPLEX / TRIPLEX Thermocouples without removal of the same. A Clip, is used to connect the other end of the thermocouple, forms the second electrode. A gap of about 0.5-to1.0 mm is adjusted between the junction and torch to avoid any contamination of the welding electrode, during welding. Welding can not take place, with indication, if the torch touches the junction. 
The provision is made to adopt Microscope for inspection. The unit works on 230 / 110 V AC mains.

Hot Junction Welding Machine is most suitable to weld the Hot Junction of a SIMPLEX / DUPLEX / TRIPLEX ungrounded and grounded Mineral Insulated (MI) thermocouples of various types, and sizes ranging from 1 mm to 6 mm. Oxidization is totally avoided as the welding process takes just few milliseconds, and with inert Gas Atmosphere. The use of ARGON inert gas for pre weld and post weld times does not allow the junction to oxidize at all. The welding is done stored energy, rater than the current, forming a weld as a beautiful bright bulb, and is immune to power supply variations and changes.

A Capacitor bank is charged to the required voltage, monitored digitally, depending on the Energy requirements, according to the size and type of thermocouple. Two more additional capacitor banks can be added for thick wires. Actuation of the START switch purges Argon for predefined time, (pre-welding), the ARC strikes, discharging Heavy current through the joint fusing the same, forming a bulb, thus completing the welding. The Argon continues to flow for predefined time (post weld time) cooling the thermocouple, avoiding oxidization. Same method is adopted for Duplex / Triplex Thermocouples, with fine adjustment of torch. 
The thermocouple is prepared and adjusted properly, in a special fixture. Welding torch and can be moved in both X and Y direction with very fine Lead screw type of precise arrangement, for accurate positioning, for welding Simplex, Duplex, Triplex thermocouples. The UP / DOWN movement with locking facility allows the torch movement vertically. All these functions make the welding of DUPLEX / TRIPLEX Thermocouples without removal of the same. A Clip, is used to connect the other end of the thermocouple, forms the second electrode. A gap of about 0.5-to1.0 mm is adjusted between the junction and torch to avoid any contamination of the welding electrode, during welding. Welding can not take place, with indication, if the torch touches the junction. 
The provision is made to adopt Microscope for inspection. The unit works on 230 / 110 V AC mains.