The utility model discloses a kind of
polyurethane foam joint filling agent
flame retardance testing device, including test box, the clamping mechanism is equipped in the top of test box, clamping mechanism is used to clamp sample bubble block, and
combustion mechanism is equipped in the bottom of test box;
Combustion mechanism includes a set of opposite fixed plate,
stepper motor, rotating screw rod, sliding screw nut, fixed
round bar, sliding shaft sleeve, sliding seat and pulse electronic ignition gun.The beneficial effects of the utility model are that clamping mechanism is used to clamp sample bubble block,
combustion mechanism uses
stepper motor to drive pulse electronic ignition gun to automatically ignite sample bubble block multiple times, and after ignition, it is removed, records the natural time of each sample bubble block, to carry out
flame retardance test, and safety performance is higher, and it is convenient to test use.