A board-uniform heating since the gate hardening process

The present invention discloses a self-uniform heating grid hardening process, comprising the following steps: preparation, into the furnace, heat sealing, heat hardened and baked. By the above-described embodiment, the present invention is pointed out that a uniform heating of the grid from the hardening process by air thermodynamic principles, the guidance of the cold and hot gas convection heating grid generation cycle, heat is evenly distributed automatically, good grid hardening effect low equipment requirements, high curing efficiency, easy process, without a separate thermal cycler, a low power consumption.