A machine including a mold which delimits an overmolding cavity, for receiving a hollow portion of a bi-material part, cooling means along the overmolding cavity, a core positionable inside the hollow portion and containing heating means for bringing the core to a heating temperature higher than 150° C., and an injector injecting an overmolding material, formed by the core and the hollow portion, for forming an inner portion of the bi-material part. In order to obtain the overmolded inner portion even if the hollow portion has poor heat resistance, the cooling means maintain the overmolding cavity at a cooling temperature lower than 110° C. while the core is brought to the heating temperature, while the overmolding material has been injected by the injector into the overmolding cavity.

A fluid cooled mold plate is disclosed. The fluid cooled mold plate has a front side, a rear side, and a perimeter that extends between its front and rear sides. A cooling chamber is formed within the mold plate. The cooling chamber has a front wall, a rear wall, and a perimeter wall that extends between the front and rear walls. An inlet fluid duct extends from a first side of the mold plate perimeter to a first end of the cooling chamber and an outlet fluid duct extends from a second side of the mold plate perimeter to a second end of the cooling chamber. The cooling chamber is occupied by a turbulence generating dispersion mesh that is secured between the front and rear walls the cooling chamber.

A thermosetting composition comprising the following component (A) and component (B), and having a viscosity of 0.1 Pa.Math.s or higher and 100 Pa.Math.s or lower at a shear rate of 10 s.sup.−1 at 25° C. measured in accordance with JIS K7117-2. (A) polybutadiene having a structural unit represented by the following formula (1A) and a structural unit represented by the following formula (1B), wherein the terminal group comprises a methacryloyl group or an acryloyl group (B) a thermal polymerization initiator

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A thermosetting composition comprising the following component (A) and component (B), and having a viscosity of 0.1 Pa.Math.s or higher and 100 Pa.Math.s or lower at a shear rate of 10 s.sup.−1 at 25° C. measured in accordance with JIS K7117-2. (A) polybutadiene having a structural unit represented by the following formula (1A) and a structural unit represented by the following formula (1B), wherein the terminal group comprises a methacryloyl group or an acryloyl group (B) a thermal polymerization initiator

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An injection molding apparatus is provided for use with a mold unit having a water line. The apparatus includes a mold base plate. The plate has a compartment configured to contain the mold unit, and further has a water line passage with an open inner end at the compartment. A first section of the water line passage includes the open inner end. A second section of the water line passage reaches away from the first section. The plate has a slot along which the first section of the water line passage is open for insertion of the water line transversely into the first section. The plate covers the second section of the water line passage such that the second section is closed to insertion of the water line transversely into the second section.

An injection molding apparatus includes: a first fixed mold attachment and detachment unit configured to attach and detach a first fixed mold; a second fixed mold attachment and detachment unit configured to attach and detach a second fixed mold; a first movable mold attachment and detachment unit configured to attach and detach a first movable mold; a first injection unit configured to inject a first molding material through a first gate opening of the first fixed mold; a second injection unit configured to inject a second molding material through a second gate opening of the second fixed mold; and a position changing unit configured to change a position of the first movable mold attachment and detachment unit such that the first movable mold is located at a position facing the first fixed mold or the second fixed mold. The position changing unit includes: a driving unit, a rotation shaft member configured to rotate by the driving unit, and a rotation disk coupled to the rotation shaft member and provided with the first movable mold attachment and detachment unit. The rotation disk is configured to rotate about a rotation axis of the rotation shaft member, and a flow path that communicates with the first movable mold and through which a medium flows is formed in the rotation shaft member.

A method for producing a three-dimensionally shaped trim part of a motor vehicle, which has a visible side and a mounting side. A flowable material is injected with pressure into a chamber of an injection molding tool, which has at least two mold shells, which, when assembled, form the chamber with a negative mold of the trim part, wherein at least one first of the mold shells forms the visible side and at least one second of the mold shells forms the mounting side of the trim part. The material is hardened in the chamber. A gas pressure is generated that acts in a planar manner between the second mold shell and the material during the hardening. The hardened material is removed as a trim part from the chamber of the injection molding tool.

Mineral-filled polymer compositions and methods of forming such polymer compositions into a thermally stable article are provided. Methods of forming a polymeric article include providing a polymer composition comprising a crystallizable polymer, a mineral filler in an amount of more than about 15 wt-% based on the total weight of the polymer composition, and an impact modifier, wherein the polymer composition is at a temperature less than a crystallization temperature of the crystallizable polymer. The methods further include disposing the polymer composition in a mold, forming the polymer composition into an article within the mold, and releasing the article from the mold. The methods can include thermoforming the polymer composition in a mold, or injection molding the polymer composition in a molten form in a mold.

Mineral-filled polymer compositions and methods of forming such polymer compositions into a thermally stable article are provided. Methods of forming a polymeric article include providing a polymer composition comprising a crystallizable polymer, a mineral filler in an amount of more than about 15 wt-% based on the total weight of the polymer composition, and an impact modifier, wherein the polymer composition is at a temperature less than a crystallization temperature of the crystallizable polymer. The methods further include disposing the polymer composition in a mold, forming the polymer composition into an article within the mold, and releasing the article from the mold. The methods can include thermoforming the polymer composition in a mold, or injection molding the polymer composition in a molten form in a mold.

In one example, an apparatus for jointing power cables includes a mold extending along a longitudinal axis, and having a feeding inlet and being made of two halves forming a longitudinal pass-through seat for receiving the cables. An extruder is connected to the feeding inlet. A heating system and a cooling system is associated with the mold. A measuring system for detecting temperature or pressure includes a plurality of probes for detecting temperature or pressure.