An integral metal end cap for use in a conveyor roll assembly is suitable for use in an environment subject to significant temperature variation. The metal end cap comprises a first end connectable to rotary means, and a second end comprising an integral body adapted to fit over the end of a ceramic spool. The integral body contains a torque transmission portion having a plurality of deformable strips enabling transmission of torque during temperature variations. A conveyor roll assembly comprises a ceramic spool having a longitudinal axis and, at least at one end of the ceramic spool, a metal end cap as described.

An integral metal end cap for use in a conveyor roll assembly is suitable for use in an environment subject to significant temperature variation. The metal end cap comprises a first end connectable to rotary means, and a second end comprising an integral body adapted to fit over the end of a ceramic spool. The integral body contains a torque transmission portion having a plurality of deformable strips enabling transmission of torque during temperature variations. A conveyor roll assembly comprises a ceramic spool having a longitudinal axis and, at least at one end of the ceramic spool, a metal end cap as described.

A process oven includes a housing structure with a conveyor system configured to carry product through a housing structure from a first opening to a second opening. A perforated flame holder is positioned within the housing structure and configured to apply, to the product, thermal energy released by a combustion reaction held by the perforated flame holder.

A carrier transport system transports a plurality of carriers by a transport conveyor into a heating furnace, advances a comb-shaped carrier stopper having a plurality of protrusions toward the carriers, moves the carriers by the transport conveyor in a transport direction to engage cutout grooves, provided respectively for the carriers, with the protrusions of the carrier stopper to thereby position the carriers at a time. The carrier transport system advances the carrier stopper toward the carriers to insert distal ends of the protrusions of the carrier stopper into insertion holes, and then determines, on the basis of a moved distance X of the carrier stopper, whether the carriers are properly positioned.

A continuous heat treatment system for a high-pressure fluid storage container includes a heat treatment apparatus including a first transfer unit which transfers a high-pressure fluid storage container, in which a high-pressure fluid is stored, in a longitudinal direction through the heat treatment space and a heating unit which heats an interior of the heat treatment space to a predetermined heat treatment temperature atmosphere and a cooling apparatus including a second transfer unit which continuously transfers the high-pressure fluid storage container transferred from the first transfer unit in the longitudinal direction and in which a lifting part is formed in at least a partial section to be vertically moved in a state in which the high-pressure fluid storage container is held, a lifting driving unit which vertically moves the lifting part, and a cooling bath in which a cooling space for accommodating a cooling fluid is formed.

Disclosed is a calcination vessel for manufacturing electrode active materials, the calcination vessel including a base portion forming a bottom surface of the calcination vessel, side wall portions extending upward from outer peripheries of the base portion to form a raw material receiving space, and at least one stack support portion extending upward from a part of an upper end of each side wall portion that is not a corner region where adjacent side wall portions abut each other.