Method of sealing a hollow structure, for example a fuel...

Details Method of sealing a hollow structure, for example a fuel... Method of sealing a hollow structure, for example a fuel...

2005-02-08

2005-02-08

Fiorilla, Chris (Department: 1734)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S094000, C156S275100, C156S275700

Reexamination Certificate

active

06852183

ABSTRACT:
Sealing method, used inside a hollow structure (1) with a bonding material (11) of the mastic type, comprising the following steps:(a) a moveable source (6) of infrared radiation (IR) is used;(b) at least one said bonding material M, chosen according to its thermosetting characteristics is used;(c) the structural parts (3) and (4) of their structure (1) are connected with a bead (8) of the bonding material along the leak line (5) portion;(d) the IR source (6) is placed inside the hollow structure (1) in a position to illuminate the bead (8) of bonding material;(e) the IR radiation (9) is emitted in the illumination position of the said IR source; and(f) a working temperature (T1) at the said bead is detected,characterized in that, on the one hand, the working temperature (T1) approximately at the center of the IR illumination beam (9) is detected (according to f) and, on the other hand, an effective temperature (T2) in a control region at the said bead (8) is detected in order to control the emission time (D) of the IR radiation as a function of the effective temperature (T2) detected, in relation to the thermosetting characteristics of the bonding material (M).

REFERENCES:
patent: 3645816 (1972-02-01), Billias et al.
patent: 4874445 (1989-10-01), Lavoie
patent: 6076769 (2000-06-01), Gallegos
patent: 6245194 (2001-06-01), Olster et al.

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