Experimental study on strong corrosion resistance TA1/Q345R explosive composites for nuclear power
To obtain high quality corrosion resistant TA1/Q345R explosive composite for nuclear power and reduce the secondary disasters in the traditional explosive welding process,an improved explosive welding technology and annealing process is put forward.The results of TA1/Q345R explosive composite comparative test show that the improved explosive welding device achieves the same welding effect after reducing the amount of explosive by 30％compared with the traditional explosive welding method.Furthermore,the TA1/Q345R explosive composite is annealed in the temperature range of 500～580 ℃.Metallographic observations are used to reveal the microstructure of the bonding interface and the grain evolution characteristics under different annealing conditions.Seawater corrosion tests reveal the excellent corrosion resistance of TA1/Q345R joints under given annealing conditions.Finally,the monitoring results of secondary hazards such as shock wave,vibration and dust generated by the explosion show that the improved explosive welding device effectively alleviated the secondary effects of the explosion under the effective reduction of 30％of the single dose and the effect of colloidal water vacuuming.The research results have developed a technical route for the preparation of high quality and strong corrosion resistance TA1/Q345R explosive composite,and it is of great significance for promoting the transformation of explosive welding technology towards a green and environmentally friendly industrial development direction.
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