A method for molding a part includes forming a mold having a part cavity and an associated electromagnet, placing resin in the part cavity, the resin including a ferromagnetic pigment, energizing the electromagnet and moving the ferromagnetic pigment towards an A-surface area of the part, and curing the resin with the ferromagnetic pigment concentrated at the A-surface area of the part. The A-surface of the part is free of flow marks and dark spots. Also, the ferromagnetic pigment is introduced into the resin before the resin is placed in the part cavity, or in the alternative, the ferromagnetic pigment is introduced into the resin after the resin is placed in the part cavity.

This process for producing a thermoplastic composite part by laying of at least one thermoplastic composite layer on a tool includes laying on the tool a hardened first ply before the laying of the thermoplastic composite layer. The first ply is produced beforehand to the shape of the tool and includes a first material able to experience an attractive force when it is subjected to a magnetic field, and/or to an electrical potential difference, and includes a second material of a thermoplastic resin that is chemically compatible with the resin of the thermoplastic composite layer. The first ply is clamped to the tool by the effect of a magnetic field, and/or of an electrical potential difference, established at the level of the tool. In one form of implementation, the first ply is produced on a first-ply mold that is preferably of convex shape.

This process for producing a thermoplastic composite part by laying of at least one thermoplastic composite layer on a tool includes laying on the tool a hardened first ply before the laying of the thermoplastic composite layer. The first ply is produced beforehand to the shape of the tool and includes a first material able to experience an attractive force when it is subjected to a magnetic field, and/or to an electrical potential difference, and includes a second material of a thermoplastic resin that is chemically compatible with the resin of the thermoplastic composite layer. The first ply is clamped to the tool by the effect of a magnetic field, and/or of an electrical potential difference, established at the level of the tool. In one form of implementation, the first ply is produced on a first-ply mold that is preferably of convex shape.

A method for production of a molded part made of plastic by rotational molding includes placing a starting material in a form of at least one of a plastic or a plastic precursor into a rotational melt mold that is fitted with at least one magnetic element. The rotational melt mold is rotated and, while the rotational melt mold is rotating, the starting material is shaped. The at least one magnetic element rotates together with the rotational melt mold while the starting material is being shaped. The starting material and the at least one magnetic element are configured in such a way that the starting material and the at least one magnetic element interact magnetically such that a portion of the starting material is attracted and held in place by the at least one magnetic element while the starting material is being shaped.

A method for production of a molded part made of plastic by rotational molding includes placing a starting material in a form of at least one of a plastic or a plastic precursor into a rotational melt mold that is fitted with at least one magnetic element. The rotational melt mold is rotated and, while the rotational melt mold is rotating, the starting material is shaped. The at least one magnetic element rotates together with the rotational melt mold while the starting material is being shaped. The starting material and the at least one magnetic element are configured in such a way that the starting material and the at least one magnetic element interact magnetically such that a portion of the starting material is attracted and held in place by the at least one magnetic element while the starting material is being shaped.

A mold component for forming a foamed part with a three-dimensional shape includes a magnetic block having a first face that defines a curved three-dimensional surface with a hook strip-receiving recess positioned above the magnetic block. The magnetic block is configured to be placed in a mold with a hook strip placed in the hook strip-receiving recess. The hook strip has a ferrous metal-containing component such that the magnetic block attracts and holds the hook strip with the hook strip conforming to the curved three-dimensional surface. Characteristically, the mold component is configured to be applied in a molding process to mold the three-dimensional shape in the foamed part wherein the hook strip attaches to a trim cover.

A mold component for forming a foamed part with a three-dimensional shape includes a magnetic block having a first face that defines a curved three-dimensional surface with a hook strip-receiving recess positioned above the magnetic block. The magnetic block is configured to be placed in a mold with a hook strip placed in the hook strip-receiving recess. The hook strip has a ferrous metal-containing component such that the magnetic block attracts and holds the hook strip with the hook strip conforming to the curved three-dimensional surface. Characteristically, the mold component is configured to be applied in a molding process to mold the three-dimensional shape in the foamed part wherein the hook strip attaches to a trim cover.

Provided is a method of thermoforming a molding material to have a bent portion and a flat portion extending from the bent portion. The method includes: placing the molding material on a bending mold, the bending mold having a curved surface; and forming the bent portion of the molding material by heating a portion of the molding material at least to a fluidization temperature such that the portion of the molding material bends due to the weight of the flat portion of the molding material to form the bent portion according to a shape of the bending mold.

An interior door handle arrangement of a vehicle, includes a housing and an actuating section which is arranged on the housing, wherein the housing and/or the actuating section have/has a carrier section made from a first plastic and a visible section made from another, second material which is connected to the carrier section in an integrally joined manner. A method for producing such an interior door handle arrangement is also provided.

A fabric-like material for reinforcement in an urethane foam molding is obtained by impregnating a part of a surface of a nonwoven fabric of organic fibers with a hot melt magnetic material and immobilizing the hot melt magnetic material. The hot melt magnetic material satisfies compositions described below and has a softening point of 70 to 100 C. Ethylene-vinyl acetate copolymer (A): 10 to 95% by mass. Wax (B): 0 to 30% by mass. Magnetic powder (C): 5 to 70% by mass. (The total of (A), (B) and (C) is 100% by mass.).