The second reason for the failure of the second seal is the following
The main reason for the unevenness of the heat-sealing blade is that the middle screw is oblique, not horizontal; or the pressure spring pressure on the heat-sealed knife is uneven.
There are three screws on the heat seal, the middle of the screw from the support and reinforcement of the role of the blade, the other two screws are equipped with pressure springs and gaskets, mainly used to adjust the heat sealing knife pressure, the upper and lower blades have two springs
Heat sealing knife on the next two, usually thermocouple installed in it, used to induce the temperature of the transmission.
(2) heat sealing knife blade is not smooth enough
Just to improve the heat sealing temperature can solve the problem.