Plug and Mandrel Bar
AssemblyThe piercing point that opens the bore, the water-cooled bar that holds it, the thrust block that resists the piercing load, and the gear that retains and rotates the bar. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Plug and Mandrel Bar
5 top-level lines as of r150968| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Piercing Plug | seamless-pipe-piercing-mill-piercing-plug | 1× | 1 | · | part |
| 2 | Mandrel Bar | seamless-pipe-piercing-mill-mandrel-bar | 1× | 1 | · | part |
| 3 | Thrust Block 3 parts | seamless-pipe-piercing-mill-thrust-block | 1× | 1 | 0 | assembly |
| 4 | Bar-Retaining Gear 3 parts | seamless-pipe-piercing-mill-bar-retainer | 1× | 1 | 0 | assembly |
| 5 | Bar Cooling Line | seamless-pipe-piercing-mill-bar-cooling-line | 1× | 1 | · | part |