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.

Preparation → Rail head cleanning and Rust removal→ adjusting Rail head distance → installation mold and clamping tools → Sealing → Preheating →Crucible installation → ignition → reaction → demoulding → remove mold and weld head → grinding

Xiangyang Lianjie Mechanical&Electrical Co.,Ltd. Established in 2013,specialized in designing and manufacturing of the geometry measurement systems for the railway,including digital track gauges,mechanical gauge,rail wear gauge,turnout measurement gauges ect. Our products are China Railway Construction Corporation Limited (CRCC) approved.The products are used by CRCC for all their rail operation. Besides, our products are also being used by major rail operators in America, Australia, Europe and the ASEAN countries.The bitterness of poor quality remains long after the sweetness of low price is forgotten. Our mission is to manufacture high quality rail measurement instruments at a competitive price with reliable services to our clients in order to help them to maintain & operate a safe railway system.