MANUFACTURE OF RESIN AND METAL COMPOSITE MOLDING

• Main Authors: OIDA TAKAO, MENJIYU YOSHIHIRO, GOTOU SHINICHI
• Format: Patent
• Language: English
• Published: 17.05.1984
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; MAKING GRANULES OR PREFORMS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; 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; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE:To prevent to damage the belt like portion of a belt shaped metal plate by coextruding other resin coat which never adheres to synthetic resin on said belt shaped portion, when a braid is formed, while coating the surface of a belt-shaped metal plate with synthetic resin leaving the belt-shaped portion lying in the longitudinal direction. CONSTITUTION:A torpedo F1 is inserted into a cross-head F, and a die F2 is attached to the tip of the cross-head F. The metal plate 1 composed of a channel like body 1a and a flange part 1b projecting in one direction thereof is passed through the torpedo F1 and the die F2. The first resin, e.g. vinyl chloride resin, is supplied to the first resin supplying passage F3 in the cross-head F, and the metal plate 1 is coated with the first resin leaving a part of the surface of the flange part 1b thereof. The second resin such as polyethylene or polypropylene is supplied from F4 and extruded from the die F2, and the flange part 1b of the metal plate 1 is coated with said resin.