Exothermic Welding is a simple, efficient, and high-quality metal connection method.
Exothermic Welding by aluminothermic reaction generated by high temperature to make metal molten completely, to achieve high quality welding effect. This reaction is conducted in the graphite mold of high temperature resistance, normally a graphite mold could be used for 70 points. Exothermic reaction process takes a few seconds only:
Reaction Formula:
3Cu2O+2AL—6Cu+Al2O3+Heat(2537°C) 
Exothermic Welding has stable ignition point, good conductivity, corrosion protection and excellent tensile strength. After improved process, the connector is brighter and cleaner.

Product Features

1. Safe and easy to operate.
2. No external power or heat source required, convenient to carry.
3. High purity copper connector, corrosion protected.
4. Connected in metallic bond style, fasten and tough.
5. The current-carrying ability of the connector is better than the conductor.
6. Widely application between copper and copper, copper and steel and cast or plated steel tape.
7. Non-degenerated suffering from several surge strike.

 PERFORMANCE CHARACTERISTICS

Large Current Load Capacity
It has good electrical conductivity with the current-carrying capacity of the fusion splices equivalent to that of the conductor. After detection, the DC resistance change rate before and after the deep decomposition is close to zero. This advantage is incomparable with the traditional connection method.

Good Mechanical Properties
Since it is a melt joint, the connection between the joint and conductor is a molecular bond and is a permanent joint.

Stable Impulse Resistance
Tests have shown that the conductor melts prior to the melt welded joint under short-term high current impulse and is therefore not damaged by surge resistance.

Strong Corrosion Resistance
Since it is a melt joint without exposed surface and residual stress, which is covered by fine copper, it can greatly increase the corrosion resistance of the conductor.

Simple and Secure Connection
No external energy, special equipment or professional operators are required. It can be completed indoor and outdoor in a short time.

Freely Regulated Reaction Temperature
Different reaction temperatures can be configured according to the metal characteristics of the conductor to be welded, so that the welded joint is stronger and more perfect.

Application Range
Hot melt welding is widely used in lightning protection grounding and surge protection engineering; electrical equipment grounding engineering; petrochemical engineering; airport, railway, highway construction; intelligent building construction, and cathodic corrosion protection engineering, etc.

OPERATING PROCEDURES

Step1. Dry mold to remove moisture

Step2. Dry the material to be welded to remove water and oil

Step3. Put the material to be welded into the mold and clamp the mold

Step4. Put the spacer gasket and seal the guide channel

Step5. Put the welding powder into the mold,cover the welding powder with ignition powder with a little amount left at the mold gate.

Step6. Ignite the ignition powder with an igniter. During the process, the operator must stand on the side of the mold gate

Step7. Open the mold after 20 seconds and remove the residue from the surface of the welding spot

Step8. Clean the mold to proceed with the next welding spot operation