Method of preparing and method of applying a vibration damping system
AssigneeRockwool International A/S
InventorJohn Asmussen
Life of this patent
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Abstract
The vibration damping system, especially for use in the damping of vibrations e.g. from trains, tramcars, other traffic and damping of ground borne vibrations in general, comprises an anti-vibration plate in the form of a plate having a first and a second major surface. The anti-vibration plate comprises mineral fibers, a non-foamed polymeric material and/or a polymeric foam. The anti-vibration plate can further be provided with one or more hollow spaces, i.e. cavities. The anti-vibration plate is obtainable by a method comprising the step of subjecting an area of the opposite surface of the plate to a compression treatment in one or more steps, which compression treatment is sufficient to reduce the static and/or dynamic stiffness of the plate.
Claims35
A method of preparing an anti-vibration plate for a vibration damping system, said method comprising the steps of:
- preparing a plate comprising mineral fibres, a polymeric material having a Shore A hardness of between 35-98 and/or a polymeric foam having a density of 20-240 kg/m3;
- and subjecting an area of the opposite surfaces of the plate to a compression treatment in one or more steps, which compression treatment is sufficient to reduce the static and/or dynamic stiffness of the plate by at least 10%, compared to the static and/or dynamic stiffness prior to the compression treatment.
A method of preparing an anti-vibration plate for a vibration damping system, said method comprising the steps of:
- preparing a plate comprising mineral fibres and one or more hollow spaces;
- and subjecting an area of the opposite surfaces of the plate to a compression treatment in one or more steps, which compression treatment is sufficient to reduce the static and/or dynamic stiffness of the plate by at least 10% compared to the static and/or dynamic stiffness prior to the compression treatment.
Dependencies are inferred from the claim text.