Method for producing a tie for use in the track superstructure

• Main Authors: Bösterling, Winfried, Bednarczyk, Adrian, Schröder, Nicolas
• Format: Patent
• Language: English
• Published: 11.10.2018
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; LIME, MAGNESIA; MACHINES FOR MAKING RAILWAYS OF ALL KINDS; METALLURGY; PERFORMING OPERATIONS; PERMANENT WAY; PERMANENT-WAY TOOLS; REFRACTORIES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to a method which enables ties for the track superstructure which have optimized performance characteristics to be produced in an operationally reliable and cost-effective manner. To this effect, the method according to the invention provides the following work steps: a) providing a mixture which consists of 10-60% by mass of a granulate of a plastic material deformable by the application of heat and, as the rest, a sand having a bulk density of 1.4-2.0 g/cm3; b) heating the mixture to a temperature of 150-200°C; c) filling the mixture into a compression mold in the shape of the tie; d) compressing the mixture in the mold with a compression pressure of 1-5 MPa measured in the mixture over a compression duration of up to 60 minutes; e) removing the tie from the mold.