Method for production of a hybrid component
AssigneeITM International Tools and Moulds GmbH
InventorsAlfred Ilse, Manfred Bartl
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AssigneeITM International Tools and Moulds GmbH
InventorsAlfred Ilse, Manfred Bartl
Estimating the term…
The invention relates to the production of a hybrid component, whereby a piece of metal sheet (1) is a least partly coated with plastic by injection moulding, by means of the following steps: a) placing the metal sheet (1) in one mould half of an injection mould, b) closing the injection mould, such that a first mould cavity opposite an upper side (O) of the metal sheet (1) and a second mould cavity opposite an under side (U) of the metal sheet (1) are cut off from each other, c) treatment of the upper side (O) with plastic by means of at least a first sprue (9) to produce an essentially flat coating (4) connected to the metal sheet (1) and, C finally, d) treatment of the under side (U) by means of at least one second sprue (10) to produce a reinforcing structure (6) connected to the metal sheet (1).
A method for production of a hybrid component, in which a piece of metal sheet (1) is at least partly coated with plastic by injection molding, comprising the following steps:
The method as claimed in one of the preceding claims, a flow of plastic emerging from a first sprue being directed straight onto the upper side (O).
The method a claimed in one of the preceding claims, the flow of plastic being directed perpendicularly or at an obtuse angle onto the upper side (O).
The method as claimed in one of the preceding claims, the coating (4) being sprayed on in step item a in a thickness of at most 3 mm.
The method as claimed in one of the preceding claims, the piece of metal *heat being hold in a clamping manner in the one mold half after placement, preferably by means of hydraulically movable holding means.
The method an claimed in one of the preceding claims, the piece of metal sheet (1) being hold in place after closing of the injection mold by means of hold-down devices formed onto the mold halves.
The method as claimed in one of the preceding claims, first apertures (2) provided on the place of metal sheet (1) being injected through to connect the coating (4), so that anchoring elements (5) produced in one piece with the coating (4) are formed.
The method as claimed in one of the preceding claims, second apertures (3) provided on the piece of metal sheet (1) being injected through to connect the reinforcing structure (6), so that second anchoring elements (8) produced in one piece with the reinforcing structure (6) are formed.
The method as claimed in one of the preceding claims, hold-down devices bearing against the upper side (O) and underside (U) being coated, so that the coating (4) is not directly connected to the second anchoring elements (8) and/or the reinforcing structure (6) is not directly connected to the first anchoring elements (5).
The method as claimed in one of the preceding claims, at least one hydraulically movable slide (11) being moved onto the upper side (O) of the piece of metal sheet (1) before stop item a to close a third aperture (12).
The method as claimed in one of the preceding claims, the hydraulic slide (11) being retracted before or during stop item d, so that the third aperture (12) is opened toward the second mold cavity and the city formed by the retraction of the hydraulic slide (11) in the first mold cavity is filled with plastic through said third aperture.
The method as claimed in one of the preceding claims, a number of pieces of metal sheet (1) being placed in the injection mold in such a way that apertures provided in them are in line with one another.
The method as claimed in one of the preceding claims, the pieces of metal sheet (1) being coated with an anti-corrosion layer.
The method as claimed in one of the preceding claims, the first sprue (9) being arranged outside a region of the coating, (4) that in visible in the fitted state.
The method an claimed in one of the preceding claims, fourth mold cavities being opened after the filling of the first mold cavity and/or second mold cavity, and further plastic being injected into said fourth mold cavities.
Dependencies are inferred from the claim text.