Finite element analysis of anti-break performance and anti-shock strength of the armored steel thermit welding joint;

This paper analyzes various welding defects appearing in the process of thermit welding, and advances some control measures.

By way of studying thehardness of rail weld after flash welding or thermit welding, it is shown that bainite rail AB1 has higher.

Study and prevention of defects in rail thermit welds;

Study of defect due to preheating in thermit welds;

This paper introduces the problems existing in the coke car's track before transformation, makes theoretical analysis on the thermite welding, and expounds the social benefit and economic benefit of paving the vehicular track by using the thermite welding.

Because the thermite welding needs no electricity or gas and operates expediently, four kinds lash-up welding tools were designed and manufactured, which are self-propagating high-temperature synthesis (SHS) welding pot, SHS welding sleeve, portable shaft welding apparatus and adjustable shaft welding apparatus.

The welded joint are prepared by QPCJ,THERMIT and civil thermit welding flux.

For the railway at low temperatures,this paper determined the maximum allowable loads on axle and maximum loads that would not cause injury of rail and its thermit welding joints.

Basing on the results of the tensile test of rail steel and thermit welding which are popular domestically,this paper uses scanning electron microscope to analyze the fracture micro-morphology,finds the fracture microscopic mechanism,and lastly interprets the anti-fracture property at low temperature from fracture morphology viewpoint.