History of Thermit Welding

In 1957, research on rail aluminum thermit welding technology.

In 1966, Started production of aluminum thermit portion used in wet mould aluminum welding technology.

In 1970, The use of dried small welding ribs technology bring rapid preheating process, and developed a medium wear welding portion.

In Mid- 1980, Timed preheating technology , and high wear welding portion was developed.

In 1990, Different degrees of improvement in aluminum thermit portion, welding process and welding equipment.

In 2000, the Fe (III)60DA rail aluminum welding kits was reviewed by the former Ministry of Railways Transportation Bureau.

In 2006, the ZTK-1 rail aluminum welding material passed the technical review by the former Ministry of Railways Transportation Bureau.

In 2008, 75kg/mPG4, U77MnCr rail aluminum thermit welding material passed the technical review by the former Ministry of Railways Transportation Bureau.

In 2009, ZTK-1 rail aluminum welding portion won the second prize of Science and Technology Award.

In 2011, the speed-increasing rail aluminum heat welding material on crane rails and it process won the Railway Science third prize hold by Railway Society.