METHOD FOR PRODUCING PLASTIC MOUNTING ELEMENT OF FLOATING PLATFORM (VERSIONS) Russian patent published in 2014 - IPC B29C49/08 B63B35/85 

FIELD: construction.

SUBSTANCE: method for producing a plastic mounting element of a floating platform (version 1) consists in the fact that moulds for the cap are manufactured with at least one slot for a key and at least two fixed pawls and for the end part of the mounting element with at least one locking protrusion on the lateral surface. Then, the product is moulded in moulds by means of injection of the molten plastic under pressure in the form of a coaxially displaced plate, primary and secondary inserts and the product in the form of the end part with at least one locking projection on the lateral surface. A tube is produced by an extrusion method, cut up to the specified size and further its ends are welded with a neck of a complimentary insert respectively and the end part of the mounting element with formation of perfect junctions. The method of manufacturing the plastic mounting element of the floating platform (version 2) comprises steps as (in version 1) before moulding of parts, wherein an additional tube is made in the mould. Then, the product is moulded in moulds by means of injection of the molten plastic under pressure in the form of a coaxially displaced plate, primary and additional inserts covering the last one, the product in the form of an additional tube with projections on the outer surface and the product in the form of the end part with at least one locking projection on the lateral surface. Then, the main tube is manufactured by extrusion. It is cut up to the specified size and then the ends of the last one are welded to one end of the additional tube and the end part of the mounting element. The other end of the additional tube is welded to the neck of the main insert with formation of perfect junctions.

EFFECT: improvement of production effectiveness due to reduction of labour intensity of production and due to the rational choice of equipment when casting some small parts in moulds of a smaller size and an increase of accuracy of the moulding quality of individual parts of the mounting element with the specified sizes of its walls.

2 cl, 4 dwg