An injection molded article is obtained by injection molding a molten resin into a mold. The injection molded article includes: a base as a thin plate-shaped member that is connected to a gate of the mold; and a plurality of protrusions each integrally molded on the base and having a thickness greater than a plate thickness of the base. The plurality of protrusions have holes each extending through the base, and the holes in the respective protrusions are connected through another component to form a flow channel. A processed region processed to have a surface roughness greater than a surface roughness of a mirror surface region including a region between the holes on the base is formed in a projected region where a region having a predetermined thickness value is projected on the base.

A method for manufacturing a fiber-reinforced hollow structural component includes introducing a mold core and fibers with a matrix material into a molding tool. A first fiber unit is located between the mold core and the molding tool to at least partially form a component wall. The matrix material is cured to form the hollow structural component and the mold core is flushed out of the hollow structural component to form a component cavity. At least one channel may extend through the mold core so that after the matrix material has cured and the mold core has been flushed out, a reinforcing strut is formed. A related hollow structural component is also disclosed.

To provide a resin molded product having a desired surface shape, a resin molding mold which can manufacture the resin molded product and a method of manufacturing the same, and a resin molding mold manufacturing system to achieve manufacturing of the resin molding mold, a resin molding mold according to the present invention includes a molding mold main body and a resin layer exposedly formed on a mold surface side of the molding mold main body, made of a heat-resistant complex material containing a synthetic resin, and a ceramic powder particle, and having a thickness of 50 to 800 μm. The resin molding mold according to the present invention includes the molding mold main body and the resin layer exposedly formed on the mold surface side of the molding mold main body and made of the heat-resistant composite materials including a synthetic resin, and the ceramic powder particle, and recesses and projections are formed on the resin layer by excavating a portion of the resin layer.

A reusable mold for injection molding and molding method includes a reusable mold member, a mold cavity defined in the mold member, and at least one heat sink recess defined in the mold member for accommodating a heat sink material. The mold member is mounted on a liquid cooled mold platen. Heat is rapidly removed from the mold cavity when the mold member is used to injection mold a molded part through the heat sink material and through an interface between the heat sink material and the liquid-cooled mold platen. The reusable mold injection molds a molded part and rapidly removes heat from the mold cavity via the heat sink material accommodated in the at least one heat sink recess and through the liquid-cooled platen.

Disclosed is a technique capable of preventing an encapsulating material from covering a heat-dissipating surface of a semiconductor module, which releases heat of a switching element. Specifically disclosed a step for manufacturing a semiconductor module including a submodule having a collector and an emitter with heat-dissipating surfaces, including a step for placing the submodule in the cavity so that the submodule is pressed by the pressing device while covering the heat-dissipating surface of the emitter with the pressing device and covering the heat-dissipating surface of the collector with the lower mold, and a step for feeding the encapsulating material to the cavity by moving the piston so that the pressure of the cavity measured by the pressure measuring device does not exceed the pressure at which the pressing device presses the submodule.

Disclosed herein is a transverse tensioning system that comprises a left-side clamping assembly comprising a first left-side clamp element and a second left-side clamp element. The first left-side clamp element and the second left-side clamp element clamp down on the left edge portion of the stack of plies when the stack of plies moves in a feed direction and is shaped between opposing dies. The system also comprises a right-side clamping assembly, spaced apart from the left-side clamping assembly and comprising a first right-side clamp element and a second right-side clamp element. The first right-side clamp element and the second right-side clamp element clamp down on the right edge portion of the stack of plies when the stack of plies moves in the feed direction and is shaped between the opposing dies.

A mold for injection molding processes and a molding process that uses the mold. The mold has, at at least one part of the surface of its cavity raised portions which are longitudinally extended, are arranged side by side and are oriented substantially in the direction of the flow of the melted plastic material that is injected. During the process, the surface of the cavity of the mold is kept at a temperature that is lower than the glass transition temperature, in the case of molding of plastic material constituted by amorphous polymers, and lower than the crystallization temperature, in the case of molding of plastic material constituted by semicrystalline polymers.

A method for identifying a fiber-reinforced plastic component includes the acts of providing a fiber preform, applying a label to the fiber preform and holding it in place, inserting the preform together with the label in a mold and closing the mold, and infiltrating the preform with a plastic compound and curing it in the closed mold. In order to reliably identify the plastic component, the label comes to rest on a flow aid portion formed on the inner mold wall which has at least one channel-shaped depression. The longitudinal extension of the flow aid portion projects beyond the label.

The invention concerns a super hydrophobic surface for handling a liquid and/or able to be contacted by a liquid, said surface comprising at least one hydrophobic liquid contact surface portion, wherein said hydrophobic liquid contact surface portion presents a micro- and nano-meter hierarchical patterned structure, the structure comprising: —homogeneously distributed micrometre-sized pillars (1), and—homogeneously distributed nanometre-sized pillars (2), preferably said pillars (2) having a dimension below 1 micrometer, at the upper surface of the micrometre-sized pillars, and—nanometre-sized protrusions (3) at the upper surface of the nanometre-sized pillars, the protrusions being positioned in a non-periodic, irregular pattern. The invention also relates to the use of such surfaces with micro- and nano-meter hierarchical patterned structure, for example in handling hot liquids, and a corresponding manufacturing process, e.g. using an injection moulding process for producing the component in polymer.

A reusable mold for injection molding and molding method includes a reusable mold member, a mold cavity defined in the mold member, and at least one heat sink recess defined in the mold member for accommodating a heat sink material. The mold member is mounted on a liquid cooled mold platen. Heat is rapidly removed from the mold cavity when the mold member is used to injection mold a molded part through the heat sink material and through an interface between the heat sink material and the liquid-cooled mold platen. The reusable mold injection molds a molded part and rapidly removes heat from the mold cavity via the heat sink material accommodated in the at least one heat sink recess and through the liquid-cooled platen.