Thermite welding is a track connection construction
process with mature technology, simple, convenient,
fast, and high-quality construction.Rail thermite
welding is the thermite flux composed of aluminum
powder, iron oxide and other metal additives in a
special crucible, and a high temperature match is
used to ignite the thermite reaction. During the
reaction, a large amount of heat is released and
the molten alloy mixture reacts to form.Because of
its high density, molten steel sinks below, the
slag generated by the reaction is relatively light
and floats on the upper part, and the molten steel
is filled with sand in a short time.At the same
time, the aluminum hot molten steel itself acts as
a filler metal, crystallizes and cools together
with the molten steel rail, and the two steel rails
form a whole.