DENSITY– Weight per unit volume of a substance expressed in grams per cubic centimeter, kilos per cubic foot, and so on. CRYSTALLINITY– A state of molecular structure in some resins which denotes uniformity and compactness of the molecular chains forming the polymer. Normally can be attributed to the formation of stable crystals having a definite geometric kind. COMPRESSION RATIO– In an extruder screw, the ratio of volume obtainable within the first flight on the hopper to the Foot Spa final flight on the finish of the screw.
DENSITY– Weight per unit volume of a substance expressed in grams per cubic centimeter, kilos per cubic foot, and so on. CRYSTALLINITY– A state of molecular structure in some resins which denotes uniformity and compactness of the molecular chains forming the polymer. Normally can be attributed to the formation of stable crystals having a definite geometric kind. COMPRESSION RATIO– In an extruder screw, the ratio of volume obtainable within the first flight on the hopper to the Foot Spa final flight on the finish of the screw.
回覆刪除