| 摘要 |
PURPOSE: A tread extruding die for preventing static electricity of tires is provided to prevent static electricity by maintaining conductivity without declining performance of silica rubber composition in case of the continued abrasion of a tire tread. CONSTITUTION: A tread extruding die for preventing static electricity of tires comprises a thread extrusion head(1), a sub-tread extrusion head(2), a wing thread extrusion head(3), an extrusion head(4) for a static electricity profile, first and second die holders(5,9), a preform die(6) for thread, and a preform die(7) for a static electricity profile. The thread extrusion head, the sub thread extrusion head, the wing thread extrusion head, and the extrusion head for a static electricity profile are connected to a first die holder. The preform die for thread and the preform die for the static electricity profile are assembled with the first die holder. The first and the second die holder are assembled through upper and lower preform dies(10a,10b). The separated projection is formed on both sides of the preform die for thread based on a guide groove.
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