Abstract:
Ein Spritzgussverfahren zur Herstellung eines Bauteils mit wenigstens zwei gesondert voneinander und relativ zueinander beweglich ausgebildeten Funktionskomponenten in einer gemeinsamen Spritzgussform (10) umfasst die folgenden Schritte: Einspritzen von fließfähiger Formmasse in wenigstens eine erste Formkavität (26) zur Bildung einer ersten Funktionskomponente mit einem einem ersten Einspritzdruck und einem ersten Wachdruck, Einspritzen von fließfähiger Formmasse in wenigstens eine zweite Formkavität (28,30) zur Bildung einer zweiten Funktionskomponente mit einem vom ersten verschiedenen zweiten Einspritzdruck und einem vom ersten verschiedenen zweiten Nachdruck, wobei ein Einspritzdruck aus erstem Einspritzdruck oder zweitem Einspritzdruck höher als der jeweils andere Einspritzdruck und der dem höheren Einspritzdruck zugeordnete Nachdruck höher als der jeweils andere Nachdruck derart gewählt sind, dass die mit dem höheren Einspritzdruck und mit dem höheren Nachdruck gebildete Funktionskomponente eine negative Schwindung aufweist.
Abstract:
The sealing cover (1) comprises a planar support (3), on which a number of sealing elements (4) are arranged, each of which is provided for the sealing of a sample container (2). The planar support (3) and the sealing elements (4) are produced from different materials in the same injection moulding tool (21) by means of two-component injection moulding. The planar support (3) is detachably connected to the sealing elements (4) by means of adhesion. The planar support (3) and the sealing elements (4) are preferably made from related plastics.
Abstract:
Dargestellt und beschrieben sind ein Verfahren zur Herstellung eines wiederverschließbaren Ausgießelementes und ein danach hergestelltes Ausgießelement, wobei das Ausgießelement einen Grundkörper (1) und einen Verschlussdeckel (2) aufweist, und wobei der Verschlussdeckel (2) mittels zweier Lagerzapfen (4) gelenkig am Grundkörper angelenkt ist. Um dieses Verfahren in seiner Gesamtheit zu verbessern und beim danach hergestellten Ausgießelement eine zuverlässig dichte Verbindung zwischen Grundkörper (1) und Verschlussdeckel (2) zu schaffen, werden die folgenden Schritte vorgeschlagen: Spritzgießen des Verschlussdeckels (2) aus einem ersten Kunststoff, Drehen des Werkzeugs um einen vorgegebenen Winkel und Öffnen wenigstens eines Teils der Werkzeugform des Verschlussdeckels (2), Schließen einer zweiten Werkzeugform für den Grundkörper (1), deren Kavität wenigstens teilweise auch vom Verschlussdeckel (2) gebildet wird, Spritzgießen des Grundkörpers (1) aus einem zweiten Kunststoff und Öffnen der zweiten Werkzeugform und Entnahme des fertigen Ausgießelements.
Abstract:
The invention relates to a ventilation device for ventilating the interior (F) of a motor vehicle, comprising at least one closing flap (3) connected in a pivoting manner with a housing (1) of the ventilation device. Said closing flap is fitted with a sealing element (7), closes an opening (2) in the housing when in a closed position, and can be moved into open positions depending on differences in air pressure between the vehicle interior (F) and the vehicle environment (U). The housing (1), closing flap (3) and sealing element (7) are manufactured by a plastic injection technique from three plastic components of different hardnesses. The housing (1) is made of a harder material than the closing flap (3) and the soft, elastic material of the sealing element (7) is selected in such a way that during injection said soft, elastic material mechanically adheres to the flap material but not the housing material.
Abstract:
The invention concerns a thermoformed dispensing closure (C) to be fitted on a container filled with a liquid product (P), comprising an elongated dispensing sleeve (4), a stopper (B) for closing the sleeve, the sleeve (4) being made of a first thermoplastic material and the stopper being made of a second thermoplastic material, the first and the second materials being mutually incompatible, said sleeve having one free end pierced in its centre by an orifice for dispensing the liquid product. The stopper comprises a cylindrical portion (47) topped by a substantially tapered portion (36), said tapered portion having an external surface, said external surface being an identical replica of the external surface of a tapered portion formed by said free end of the sleeve. The invention also concerns a method for manufacturing the closure (C) with the stopper (B) by double injection of the first and the second materials.
Abstract:
In a process for manufacturing a plastic cock consisting of a plug and a housing for medical equipment, first one of the two parts (1 or 9) is injection moulded and the other part (9 or 1) is then injection moulded around or in the previously manufactured part (1 or 9).
Abstract:
A dual injection molding method for producing two-material, two-component devices (46, 48). The method includes first, injection molding a first component (46) in one station (22) of a dual injection unit molding machine (10). The first component (46) is then transferred to a second station (24) in the machine (10) and a second component (48) is injection molded over the first component (46) such that the first component (46) acts as part of the mold (24) for the second component (48). The two components are maintainable in a fixed relationship to one another until they are manually separated. One feature of the invention is that a sterile barrier is formed between the first (46) and second (48) components as they are manufactured.
Abstract:
The invention relates to a method for producing pan and a pan to be used in a microwave-oven. The method comprises providing a plate (10) of aluminium, with a first major surface (11) being coated with a non-stick material (13) and which first major surface (11) being adapted to form an upwardly facing food-receiving bottom surface of said pan (1), providing a heating member (20) in contact with a second major surface (12), opposite to said first major surface (11), of said plate (10) of aluminium, said heating member (20) being formed of silicone rubber with ferrite particles, arranging said plate (10) of aluminium in an injection moulding tool, and injection moulding a wall (30) of a plastic material onto said plate (10) of aluminium, the wall (30) extending along the perimeter (P) of said plate (10) of aluminium and having an upwardly (Up) and outwardly (Out) directed extension.
Abstract:
La présente invention concerne un procédé pour produire un bouchon destiné à fermer un récipient, de préférence un récipient à fluide, ainsi qu'un bouchon susceptible d'être obtenu par ce procédé.
Abstract:
A method for making a cleated plate member for an article of footwear is described. The method includes a number of steps where various molds are used to form different components of the cleated plate member. A collar receptacle (800) is formed using a first molding process. A cleat member (300) is formed from a non-compatible material with a fastener of the cleat member (300) associated with the collar receptacle (800) using another molding process to form a combined cleat assembly (810). The combined cleat assembly (810) is placed into corresponding receptacles (1108) in a mold (1100) used to form the cleated plate member. The cleated plate member is formed using another molding process that embeds the collar receptacle (800) into the body of the cleated plate member. The completed cleated plate member includes releasably attached cleat members (300).