IDL Explosives Limited adheres to all the regulatory requirements as prescribed under Explosives Act 1884 and Explosives Rules 2008. Our supplies will be made only to one who is a holder of a license to possess the explosives or the agent of a holder of such license duly authorized by him in writing. All deliveries will be made only against submission of indent in form RE-11 as prescribed
EXPLOBOND® Electrical Transition Joints
EXPLOBOND® Electrical Transition Joints are inserts used for joining dissimilar metals in a current carrying system. The fact that during explosion bonding, the surfaces undergo a cleansing process is reflected in the practically zero electrical resistance of the bond interface. This is unlike other alternatives such as braze welding, weld deposition, etc. where large amounts of inter-metallic / alloy layers coupled with defects like shrinkage cavities contribute to electrical resistance of joints.


EXPLOBOND® Electrical Transition Joints are widely used in the electrochemical industries like chlorine alkali and electrometallurgical industries such as aluminum smelters, zinc electrolysers apart from electrical contacts.

These processes usually employ very high current (at low voltages) and reduction of voltage drops at the joints, resulting in considerable power savings. EXPLOBOND® transition joints serve to provide reliable, energy saving, maintenance free and strong electrical connections between dissimilar metals.

In the potlines of modern aluminium smelters, the electrode holders are steel and bus bars usually aluminium. Aluminium and steel cannot be welded by conventional processes. EXPLOBOND® electrical clad transition joints are interposed between the bus bar and the electrodes to complete the circuit.

Standard EXPLOBOND® electrical transition joints for Aluminium smelters are listed in the table below:

Type-A Type-B
Aluminium 99.5% purity 12.7 mm thick Carbon Steel AISI 1008 38.1 mm thick Aluminium 99.5% purity 12.7 mm thick Titanium SB 265 Grade 1. 2 mm thick nominal Carbon Steel AISI 1008 38.1mm thick
Minimum tensile strength: 80 MPa in as clad condition
Minimum tensile strength: 65 MPa after 24 hours soaking at 300 degree centigrade
Minimum tensile strength: 150 MPa in as clad condition
Minimum tensile strength: 80 MPa after 24 hours soaking at 500 degree centigrade
Most combinations and dimensions are possible depending on customer requirements like Aluminium + Copper, Copper + Aluminium + Copper, Copper + Steel and many others.

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