Garbage compression car tank weld joint water testing and leakage detection sealing method

The invention relates to a garbage compression car tank weld joint water testing and leakage detection sealing method in order to solve the problems that during treatment on defective weld joints, theworking procedures are complex, time is wasted and the cost is increased. According to the garbage compression car tank weld joint water testing and leakage detection sealing method, a cross beam isarranged on built-in push shovel guide rails of a garbage compression car; a water storage baffle is mounted on a box in place of a box back door, so that the water storage baffle and left and right side baffles, a front baffle and a bottom plate of the box jointly define a water storage space, the weld joints can be subjected to water testing and leakage detection after completion of welding on the left and right side baffles and the bottom plate of the box, and weld defects column be found in time and dealt with as soon as possible; the defect that water testing and leakage detection can becarried out only after comp