ENHANCED THERMAL CONDUCTION IN APPARATUS FOR PLASTICATING RESINOUS MATERIAL

• Main Authors: LEWIS, PAYTON, R, WOMER, TIMOTHY, W
• Format: Patent
• Language: English; French
• Published: 03.08.2006
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; AGRICULTURE; ANIMAL HUSBANDRY; APPARATUS FOR MAKING BEVERAGES; BAKING; CHEWING GUM; COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; COFFEE MILLS; CONFECTIONERY; DOMESTIC ARTICLES OR APPLIANCES; EDIBLE DOUGHS; FISHING; FOODS OR FOODSTUFFS; FORESTRY; FURNITURE; HANDLING BAKED ARTICLES MADE FROM DOUGH; HUMAN NECESSITIES; HUNTING; ICE-CREAM; KITCHEN EQUIPMENT; MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; MAKING GRANULES OR PREFORMS; MANUFACTURE OF DAIRY PRODUCTS; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; PREPARATION THEREOF; PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY ASINGLE OTHER SUBCLASS; SPICE MILLS; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; SUCTION CLEANERS IN GENERAL; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; TRANSPORTING; TRAPPING; WORKING CEMENT, CLAY, OR STONE; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

An apparatus for plasticating rubber, thermoset or thermoplastic materials according to this invention includes a barrel having a wall extending axially and laterally and having an outer surface and an inner surface. The wall has a thickness formed with mutually spaced holes extending at least partially through the thickness. The barrel is formed of material having a first, relatively low coefficient of thermal conduction. Conductors having a coefficient of thermal conduction greater than the first coefficient are each located in and engage a hole. Heat applied to the outer surface is conducted rapidly through the wall thickness along the length of the conductors to the inner surface, thereby heating and cooling material being processed located in a cavity surrounded by the wall. Selon l'invention, un appareil pour plastifier des matières caoutchouteuses, thermodurcissables ou thermoplastiques comprend un tambour possédant une paroi qui s'étend axialement et latéralement et qui comporte une surface externe et une surface interne. La paroi a une épaisseur formée avec des trous espacés les uns par rapport aux autres, qui traversent au moins partiellement cette épaisseur. Le tambour est formé d'un matériau qui a un premier coefficient de conduction thermique, qui est relativement bas. Les conducteurs ayant un coefficient de conduction thermique supérieur au premier coefficient de conduction thermique sont tous disposés dans un trou et le mettent en prise. La chaleur appliquée à la surface externe est rapidement conduite via l'épaisseur de la paroi, sur la longueur des conducteurs vers la surface interne, ce qui permet de réchauffer et de refroidir le matériau à traiter, disposé dans la cavité entourée par la paroi.