Ventilation Fan Smc Mould Compression mould

SMC Compression mould usually use hydraulic press machine and the cavity and core is fixed to top and bottom platens of machine. Once the SMC material is placed into the open mould, the machine closes, mould get heated, then the press pressure force material to flow all over the SMC mould.

Variable pressure can be used during the mould close phase. A shear edge zone in the perimeter of the cavity enables air to pass through, the small amount of material that escapes through the sheer edge results in “flash”. Flash is necessary by-product of compression moulding due to the needs to expel air during the moulding process by overfilling the mould cavity. Compression parts need to be de-flashed to have good finish.

SMC mould design follows similar rules as for any other production process with the plastic industry. But before you build a SMC mould, there are certain things need to be considered.The first and most important is shear edge.

SMC(sheet molding compounds) is a fiber reinforced thermoset material often used for large parts where highr strength is needed.