Patent ID: 8268210
Filing Date: 2012-09-18
Classification: B29C

Abstract:
1. Method for injection moulding of a moulded part ( 1 ), which has at least two different sections ( 2 , 3 ) being different in the outer diameter (D 1 , D 2 ), wherein a void ( 4 ) is produced in the inner of the moulded part ( 1 ) by causing a projectile ( 5 ) in the direction of a longitudinal axis (L) of the moulded part ( 1 ) through the still molten injection mouldable material in a direction of flow (F), whereto a pressurized fluid is exerted in the void ( 4 ) in the direction of flow (F) behind the projectile ( 5 ) which moves the projectile ( 5 ) into the direction of flow (F), characterized in that a projectile (