Method of applying a sulphur-containing sealing compound, apparatus therefor, correspondingly treated aerospace vehicle and use thereof

US12023709B2 · kind B2 · utility

Assignee

• CHEMETALL GMBH · DE

Inventors

• Peter Bons · Reichelsheim, DE
• Swetlana Reichert · Frankfurt am Main, DE
• Bjoern Sievers · Frankfurt, DE
• Miroslav Kralev · Frankfurt am Main, DE

Key dates

• Filing date: Feb 12, 2016
• Grant date: Jul 2, 2024
• Expiry date: Jan 10, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B37/14
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method of sealing, coating or/and aerodynamic smoothing of at least one connecting element that protrudes from a surface or/and for sealing, coating or/and aerodynamic smoothing of a surface at a gap or at an uneven connection site with a sulfur-containing SCOD sealing compound at at least one application site, especially on an aerospace component, with at least one nozzle element and with at least one irradiation unit, which is characterized in that i) a nozzle element contains a mixed sealing compound and is guided or/and mounted over the connecting element protruding from a surface, over the gap or/and over the uneven connection site, ii) the connecting element protruding from the surface, the gap or the uneven connection site is covered fully with sealing compound, the sealing compound forming a sealing compound cover essentially in the form of a sealing compound cap, a coating or/and a mound-shaped or bead-shaped elevation, iii) the nozzle element or at least a portion is raised if required from the surface having the sealing compound cover, and iv) the curing of the sealing compound is initiated with the aid of at least one irradiation unit by energ…