In order to solve falling off of window guard plate of JSQ6 concave bottom double-decker transportation car special vehicle,cherry rivet is replaced with pull rivet,while keeping the position,number and size of the rivet holes in the existing window guards and side wall panels unchanged,the transformation scheme of the existing vehicle is clarified.Since the transformation scheme has been implemented for two years,rivet breakage,prolapse and other fail-ures of the window guard plate did not occur.
Concave Bottom Double-decker Transportation Car Special VehicleWindow Guard PlateRiveting
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