| 摘要 |
Manufacturing process for a frequency adaptor of the cylindrical type comprising at least one assembly formed by an elastomer ring (2) moulded between an internal armature (1) and a cylindrical ring (3), the said elastomer ring (2) adhering to the armature (1) and to the cylindrical ring (3), the said assembly or assemblies being fitted into an external sheath (4, 7), characterised in that after moulding the elastomer ring (2) between the said internal armature (1) and the said cylindrical ring (3) and the cooling of the assembly thus formed, and without carrying out any necking operation, the said assembly is fitted into the said external sheath (4, 7) and in that thereafter only one operation for necking the diameter of the complete adaptor is carried out, by plastic deformation of the external sheath (4, 7) also leading to a decrease in the diameter of the cylindrical ring (3). …<IMAGE>… |
