Manufacturing process for making a dome element provided with thermal protection for a solid propellant rocket engine
AssigneeAVIO S.p.A.
InventorsDaniele SCHIARITI, Massimiliano CARDELLI
Life of this patent
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Abstract
For producing a dome-shaped element (2) provided with thermal protection for a solid propellant rocket engine, a coupling annular body (4) is arranged in a mold (5) and has a surface (20) that is clean and activated, by an atmospheric-pressure plasma treatment, before depositing a primer layer (26) and an adhesive layer (27) on the surface (20); ablative material is then automatically applied to the adhesive layer and to an area (17) of the mold (5) so as to form a series of superimposed layers (30).
Claims15
A method for producing a dome-shaped element provided with thermal protection for a solid propellant rocket engine;
- the method comprising the steps of:
- providing a coupling annular body;
- arranging said coupling annular body in a mold;
- treating a surface of said coupling annular body so as to clean and/or activate said surface;
- depositing at least an intermediate fixing layer onto the treated surface;
- applying ablative material to said intermediate fixing layer and to a side area of said mold, in form of subsequent layers;
- wherein the step of treating said surface comprises a treatment with atmospheric-pressure plasma.
A station for producing a dome-shaped element provided with thermal protection for a solid propellant rocket engine;
- the station comprising:
- a mold;
- a robot comprising a movable head;
- a device for atmospheric-pressure plasma treatment, carried by said movable head.
Dependencies are inferred from the claim text.