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 injuected 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.

The purpose of the present invention is to improve the mechanical strength of a boss in correspondence with the direction in which the principal stress is generated in an impeller formed of fiber-reinforced resin. A hub 11 is provided with a first region arranged on the back surface 11b side, and a second region arranged on the front surface 11a side. In the first region the frequency with which the reinforcement fibers F dispersed at the periphery of a boss hole 12 are oriented inclined with respect to the radial direction of the hub 11 is high, and in the second region the frequency with which the reinforcement fibers dispersed at the periphery of the boss hole are oriented along the rotational axis line is high.

A molded article 1 is made of a resin material 3 containing cellulose fibers 2. The molded article 1 has a surface portion 4 that is in a range satisfying T.sub.F0.1T where T is the thickness of the molded article 1 and T.sub.F is a distance from the surface of the molded article 1, and the molded article 1 satisfies D.sub.F1.1D where D is an average cellulose concentration of the overall molded article 1 and D.sub.F is an average cellulose concentration of the surface portion 4. Thus, the molded article suppresses an increase in bending modulus while considerably improving a tensile modulus.

Mold including a first shell having a cavity, a second shell having a projection, and an intermediate shell having a projection suitable for being coupled in the cavity of the first shell and a cavity suitable for being coupled with the projection of the second shell. The second shell includes a first injection channel extending from an inlet hole in a side wall of the second shell to an outlet hole in the projection of the second shell. The intermediate shell has a second injection channel extending from an inlet hole in a side wall of the intermediate shell to an outlet hole in the projection of the intermediate shell.

A core mold component defining a lower surface of the injection mold set corresponding to the lower surface of the annular component is heated to a base temperature. A cavity mold component defining the upper surface of the injection mold set corresponding to the Class A surface of the annular component is heated to a higher temperature than the base temperature. Faces of two streams of metallic resin, including the metallic resin flakes, injected into the mold set are caused to come together at the knit line. Metallic resin flakes are caused to flow into inboard and outboard overflow cavity through respective inboard and outboard gates positioned adjacent the knit line.

In one or more embodiments, micro light guides are constructed that include a wall and one or more features extending from or protruding into one or more surfaces of the wall. The microstructure light guide is defined by a mold and formed as a single article with uniform internal stresses. In at least some embodiments, the mold that defines the microstructure light guide employs pixelated mold portions that enable selective temperature adjustment of discrete regions of the mold portions to form the microstructure light guide.

An injection molding apparatus and an method for the manufacture of moldable articles having an injection manifold, a plurality of hot runner nozzles, a first nozzle heater, a plurality of mold cavities positioned to receive molten material from the plurality of the hot runner nozzles, each mold cavity having at least one mold gate orifice and a mold cavity heater surrounding each mold cavity at least partially and a thermocouple associated with the mold cavity to measure directly or indirectly a temperature generated by the mold cavity heater.

The invention relates to a tool insert for a primary shaping tool, comprising a thermal insulator disposed on a main part having a molding surface contacted by the molten material to be shaped, said surface being at least partly spaced from the main part of the tool insert by a thermal insulator. The thermal insulator comprises bulk metallic glass.

A mould tool (100) is provided which has a multipart mould layer assembly (200; 300; 400; 500; 600) which may either be formed from a carrier (202; 302; 402; 502) and an insert (206; 306; 406; 506) defining a mould profile, or a mould face component (602; 702) having a plurality of stackable blocks (630, 632, 634) which can be assembled to form a mould layer.

A method for fabricating a lid or a base of a container, the lid or base comprising a web and an outer boundary, the method comprising injecting a plastic material through at least a first number of first cavities having a first thickness and through at least a second number of second cavities having a second thickness, the first cavities leading to the outer boundary of the lid or base, the first thickness being larger than the second thickness; and selectively cooling the first cavities and the second cavities.