摘要:
A side gate type injection molding die prevents a weld line from being generated on a molded component made of a resin material to which a brightening agent is added, avoiding inferior appearance. The side gate type injection molding die including a product portion 7, which is a space for molding, and a side gate 8, which is used to inject the material into the product portion 7, in which the side gate 8 is formed so as to have a rectangular transverse cross section in a contact part 9 between the product portion 7 and the side gate 8, is configured so that at least one of corner parts 9e of the transverse cross section formed into a rectangular shape in the contact part 9 of the side gate 8 is formed in a curved shape; and the resin material to which the brightening agent is added is injected into the product portion 7 from the side gate 8 to manufacture a molded component 1.
摘要:
A side gate type injection molding die prevents a weld line from being generated on a molded component made of a resin material to which a brightening agent is added, avoiding inferior appearance. The side gate type injection molding die including a product portion 7, which is a space for molding, and a side gate 8, which is used to inject the material into the product portion 7, in which the side gate 8 is formed so as to have a rectangular transverse cross section in a contact part 9 between the product portion 7 and the side gate 8, is configured so that at least one of corner parts 9e of the transverse cross section formed into a rectangular shape in the contact part 9 of the side gate 8 is formed in a curved shape; and the resin material to which the brightening agent is added is injected into the product portion 7 from the side gate 8 to manufacture a molded component 1.
摘要:
In a molded plastic part 1 including a body 2 constituting a design surface 2a and a reinforcing structure 3 projectingly provided on a design back surface 2b of the body 2, the body 2 and the reinforcing structure 3 being integrally molded by injection molding, the reinforcing structure 3 is formed by a combined body of a plurality of transverse ribs 7a, 7b, 7c and 7d which are arranged at appropriate intervals in the resin flow direction at the time of injection molding in the direction intersecting with the resin flow and longitudinal ribs 6p and 6q which extend at right angles to the transverse ribs and connect the transverse ribs to each other. The transverse ribs are connected to the design back surface 2b, and a gate 8 for injection molding is set on one of the transverse ribs. The longitudinal ribs are disposed so as to be separated from the design back surface 2b.
摘要:
A luminous material such as an aluminum luminous material of which particle size is 1 μm to 7 μm is added for 1.8 weight parts to 4.4 weight parts relative to 100 weight parts of a resin material such as, for example, an AES resin containing a copolymer. A molding is performed by using a resin composition generated as stated above, and thereby, a resin molded article having luminosity, a suppression effect of interference of scattered light, and associated physical properties can be obtained.
摘要:
A molding mold includes a runner to fill a molding material from a sprue to a cavity, the runner including a bent portion, in which a cross-sectional area of a flow channel passing through an inner side of the bent portion and a cross-sectional area of a flow channel passing through an outer side of the bent portion are different from each other in at least one region along the runner from the bent portion to the cavity.
摘要:
A side gate type injection molding die prevents a weld line from being generated on a molded component made of a resin material to which a brightening agent is added, avoiding inferior appearance. The side gate type injection molding die including a product portion 7, which is a space for molding, and a side gate 8, which is used to inject the material into the product portion 7, in which the side gate 8 is formed so as to have a rectangular transverse cross section in a contact part 9 between the product portion 7 and the side gate 8, is configured so that at least one of corner parts 9e of the transverse cross section formed into a rectangular shape in the contact part 9 of the side gate 8 is formed in a curved shape; and the resin material to which the brightening agent is added is injected into the product portion 7 from the side gate 8 to manufacture a molded component 1.
摘要:
A resin molding is provided. A main body is comprised of 100 parts by weight of thermoplastic resin and 0.1 to 4 parts by weight of bright material having the aspect ratio of 30 to 50. A main body has a design surface formed with a groove. The lower limit of the depth of the groove is set to 0.3 mm and the upper limit of the depth of the groove is set to 0.5 mm.
摘要:
In a molded plastic part 1 including a body 2 constituting a design surface 2a and a reinforcing structure 3 projectingly provided on a design back surface 2b of the body 2, the body 2 and the reinforcing structure 3 being integrally molded by injection molding, the reinforcing structure 3 is formed by a combined body of a plurality of transverse ribs 7a, 7b, 7c and 7d which are arranged at appropriate intervals in the resin flow direction at the time of injection molding in the direction intersecting with the resin flow and longitudinal ribs 6p and 6q which extend at right angles to the transverse ribs and connect the transverse ribs to each other. The transverse ribs are connected to the design back surface 2b, and a gate 8 for injection molding is set on one of the transverse ribs. The longitudinal ribs are disposed so as to be separated from the design back surface 2b.