Method for making a gas-tight container in elastomeric material
AssigneeFaber Industrie S.p.A.
InventorsGian Luigi Cola, Raffaele Di Sarno, Claudio Cromaz
Life of this patent
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Abstract
A method for making a gas-tight container (1) in elastomeric material comprises: providing two or more separate elastomeric portions (2, 3), cleaning and/or roughening the gluing surfaces (6) of the gluing edges (5), applying an adhesive (7) onto the previously cleaned, degreased and/or roughened gluing surfaces (6), assembling the portions (2, 3) to form the container (1) and inserting between the gluing surfaces (6) a raw elastomeric tape (8) not yet cured, applying a cold pressure on the overlapped gluing edges (5), heating the overlapped gluing edges (5) to thermally activate the curing of the raw tape (8), cooling the gluing areas.
Claims12
Method for making a gas-tight container in elastomeric material, comprising:
- A) providing two or more elastomeric portions in the shape of a three-dimensional shell, initially separated from each other,
- B) connecting the initially separated elastomeric portions by means of gluing along one or more gluing edges, such as to obtain the final shape of the elastomeric container,
- C) checking the tight seal under pressure of the glued elastomeric container,
- wherein the step B) of connecting the elastomeric portions along the gluing edges comprises:
- B1) cleaning and/or roughening the gluing surfaces of the gluing edges,
- B2) applying an adhesive with cold-set adhesive action onto the previously cleaned, degreased and/or roughened gluing surfaces,
- B3) assembling the portions to form the container and inserting a raw elastomeric tape not yet cured or not yet completely cured between the gluing surfaces intended to be glued to each other,
- B4) applying a cold pressure to the portions at the overlapped gluing edges with the raw tape interposed therebetween, wherein said pressure acts in a pressure direction transversal to the wall plane of the gluing edges,
- B5) heating the overlapped gluing edges such as to then tally activate the curing of the raw tape, such as to provide a tight seal of the glued areas,
- B6) cooling the gluing areas.
A method for manufacturing a pressure container, comprising:
- preparing a pressure-resistant outer shell,
- making a gas-tight container in elastomeric material, by means of the steps:
- A) providing two or more elastomeric portions in the shape of a three-dimensional shell, initially separated from each other,
- B) connecting the initially separated elastomeric portions by means of gluing along one or more gluing edges, such as to obtain the final shape of the elastomeric container,
- C) checking the tight seal under pressure of the glued elastomeric container,
- wherein the step B) of connecting the elastomeric portions along the gluing edges comprises:
- B1) cleaning and/or roughening the gluing surfaces of the gluing edges,
- B2) applying an adhesive with cold-set adhesive action onto the previously cleaned, degreased and/or roughened gluing surfaces,
- B3) assembling the portions to form the container and inserting a raw elastomeric tape not yet cured or not yet completely cured between the gluing surfaces intended to be glued to each other,
- B4) applying a cold pressure to the portions at the overlapped gluing edges with the raw tape interposed therebetween, wherein said pressure acts in a pressure direction transversal to the wall plane of the gluing edges,
- B5) heating the overlapped gluing edges such as to thermally activate the curing of the raw tape, such as to provide a tight seal of the glued areas,
- B6) cooling the gluing areas,
- mounting the elastomeric container in the outer shell.
Dependencies are inferred from the claim text.