Impact-sliding composite fretting corrosion testing machine suitable for high-temperature lead-bismuth environment

An impact-sliding composite fretting corrosion testing machine suitable for a high-temperature lead-bismuth environment, comprising a test bench, a lead-bismuth pipeline, a test kettle, a melting kettle, an excitation system and a gas circuit control system, wherein the lead-bismuth pipeline, the test kettle, the melting kettle, the excitation system and the gas circuit control system are respectively located on the test bench, the lead-bismuth pipeline is located at a bottom of the test bench, and is connected to a bottom of the test kettle and a bottom of the melting kettle respectively, an interior of the test kettle is equipped with a clamping component, the test kettle is welded with four large sleeves at an external interval of 90°, four corrugated pipe pull rods A, B, C and D are respectively arranged at ends of the four large sleeves away from the test kettle, each of the four corrugated pipe pull rods A, B, C and D comprises a pull rod sleeve, a corrugated pipe and a pull rod, the excitation system comprises a signal generator, a first power amplifier, a second power amplifier, a first exciter, a second exciter and an excitation fixture, the first exciter and the second exciter are equipped with excitation rods, and the clamping component comprises an upper support plate, a plate sample fixture, a pipe sample, a pipe sample fixture, a cantilever rod, a cantilever rod fixture, a lower support plate, a rotating block and a movable pin shaft.