Bayer Aktiengesellschaft

Strabag Bau-ag

Eberhard Born

Lothar Preis

Rudolf Schmidt

Martin Weiser

Bernhard Kotulla

Jurgen Faltin

Wulf Von Bonin

Jurgen Lahrs

Martin Kacza

Hartmut Rest

A semi-finished product (24) composed of dry, loose covering layers (10,15) of reinforcing material and a debris material (9) of reaction resin (5) and elements (7) of variable form and volume as core (22) is used for the manufacture of moulded parts by hot pressing.

Post forming semi-finished product for the manufacture of moulded parts

In order to improve the introduction or uptake of force in a hollow section (1), in particular a tube, of long fibre reinforced plastic having an integrated force induction element (2) and to simplify its manufacture, a radial enlargement (4) is pressed into the hollow section (1) by means of a moulding body before the plastic matrix has hardened, which radial enlargement tapers into a narrow section (6) towards its free end (5), the jacket (3) which is formed in the process later enclosing an expansion element (9) with a clamping member (10) which merges into a tie rod (11), the expansion element (9) lying in a form-fitting manner against the interior of the enlargement (4,47) over the length of said enlargement.

Hollow section, in particular a tube, of long fibre reinforced plastic

A semi-finished product (24) composed of dry, loose covering layers (10, 15) of reinforcing material and a debris material (9) of reaction resin (5) and elements (7) of variable form and volume as core (22) is used for the manufacture of moulded parts by hot pressing.

By using a packer which is pushed as far over an anchor as the intended length of the moulding, the cavity in a borehole in the region of the bond can be completely filled with a reactive resin. Overhead work is possible even with slowly reacting resins. By using a catalyst on the packer, the reactive resin injected into the borehole behind the packer can be made to harden very rapidly.

Anchoring of tension members

A modular block for osmotic methods of separation under pressure can be folded open and the filtration unit can easily be removed and introduced in the process. The filtration unit consists of a base plate with a membrane filter candle, and the filter candle consists of a stack of membrane filter plates. Spacers are placed between the filter plates and deflecting plates are provided to ensure zigzag penetration. The permeate transportation is displaced to the edge of the plates. The permeate issues laterally at the flange.

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Cologne, Germany

Eberhard Born