Systems and methods are described for the compression of graphite flakes to form a continuous graphite web. An example of such a system includes at least one hopper to provide graphite flakes and a set of rollers configured to compress the graphite flakes into a graphite web.

A resin molding apparatus includes: a resin supply mechanism configured to supply powder resin onto at least one object to be supplied; a mold die including: an upper die; and a lower die facing the upper die, the mold die being configured to receive the powder resin between the upper die and the lower die; and a mold clamp mechanism configured to clamp the mold die for compression molding. The resin supply mechanism includes: a rotor in a shape of a circular column with an outer surface having a plurality of depressions, the rotor being configured to rotate about an axis; a resin supply section configured to store the powder resin and having an opening for letting the powder resin drop freely onto the rotor; and a spatula-shaped member having a first end in contact with the outer surface of the rotor.

A powdery-material mixing degree measurement device includes a supplier configured to be fed with a mixed-powdery materials, a discharger configured to discharge to feed, with the mixed-powdery materials, a filling device configured to fill a die bore of the compression-molding machine with a powdery material, a rotator including a plurality of movable portions and configured to capture the mixed-powdery materials fed through the supplier and to transfer the mixed-powdery materials to the discharger a first sensor configured to measure a mixing degree of the mixed-powdery materials captured by the movable portions of the rotator, a second sensor configured to detect whether or not the mixed-powdery materials in the supplier have an upper surface level kept within a constant target range, and a controller configured to adjust rotational speed of the rotator such that the upper surface level of the mixed-powdery materials in the supplier is kept within the constant target range.