A bowl liner and a bowl for use in gyratory cone crushers in which the body of the liner has improved wear-resistant features and the liner is mounted in a shock-free manner to greatly increase the life of the liner. A circumferential, inwardly extending bowl ledge is provided with sockets through which inserts which are fused to the liner body project. The inserts have bores threaded to receive spring-loaded mounting bolts yieldably connecting the liner to the bowl.
Disclosed are inventive apparatuses and methods for interfacing ceramic and metal plasma reaction chamber components. The apparatuses include a clamp ring having a unitary plate having a plurality of attachment pad regions. The attachment pad regions are connected together with connecting regions which are relatively more deformable to thermal stresses than are the attachment pad regions. The clamp ring is attached to the ceramic plasma chamber utilizing a plurality of bolt tensioning assemblies having spring washers and indicator washers configured such that the correct torque value can be applied without the need of a torque wrench or other such tool.
