Dummy Block
The pressure pads transfer the force applied by the extrusion stem to the billet. For this reason, they are always in contact with the billet throughout the extrusion process. They are subject to high temperatures and reach high local temperatures in the process.
The pressure pads must be cooled to normal temperature following extrusion. These tool components are subject to very high loads due to the high temperature fluctuations. High thermal stresses also occur on the edges when extruding with a shell.
Similar to the extrusion dies, distinction must be made between the extrusion of aluminium and heavy metals for the pressure pads.
- Aluminium Extrusion Press
- Brass- CopperExtrusion Press
- Steel Extrusion Press
Technical specifications vary depending on alloy content and pressing time.
- Dummy Bolt Type
- Dummy Bayonet Type
- Dummy Replacable Ring Type
- Dummy Marathon Type
- Dummy Hard Alloy Type
- Dummy Soft Alloy Type
- Dummy Holder
- Dummy Ring
- Mandrel
- Dummy Nut
- Dummy Stud Bolt
- Dummy Bayonet Stud
- Dummy Spring
- Dummy Keys-Wedge
- Dummy Pin
- Dummy Pressure Pad