Verarbeitung einer Glasscheibenanordnung für eine Vakuumisolierte Glaseinheit

Details

Veröffentlichungs-Nr.

EP4589107

Aktenzeichen

EP24153150

Anmeldetag

22. Januar 2024

Veröffentlichung

23. Juli 2025

Rechtsraum

EP

IPC

E06B3/66E06B3/663E06B3/673E06B3/677

Abstract

The present disclosure relates to a method of processing a glass sheet assembly (1) for a vacuum insulated glass (VIG) unit (30), wherein the method comprises the step of - providing a glass sheet assembly (1) comprising a first glass sheet (3) and a second glass sheet (4), wherein a plurality of support structures (2) for maintaining a gap (5) between said first glass sheet (3) and said second glass sheet (4) of the vacuum insulated glass unit (30) are arranged between major surfaces (3a, 4a) of the glass sheets (3, 4), and wherein the glass sheet assembly (1) comprises a solder material (7) for providing an edge sealing for enclosing and sealing the gap (5) between the glass sheets (3, 4), the method comprising the subsequent steps of - heating the solder material (7) in a first softening step (ST1) so as to soften the solder material by moving one or more laser light beams (9, 9_1, 9_2, 9_3, 9_4, 9_5) along the lengthwise extent (LDS) of the solder material (7) at a first distance (LADIS1) between the centre of the spot (CS) of the one or more laser light beams at the solder material (7) and an adjacent outer edge (3LE) of the first glass sheet (3), and - subsequently heating the solder material (7) in a second softening step (ST2) so as to soften the solder material by moving one or more laser light beams (9, 9_1, 9_2, 9_3, 9_4, 9_5) along the lengthwise extent (LDS) of the solder material (7), wherein at the second distance (LADIS2) to the adjacent outer edge (3LE) the heating power (HP) from the one or more laser light beams (9, 9_1, 9_2, 9_3, 9_4, 9_5) at the second softening step (ST2) is larger (HP<1>) than the heating power (HP<2>) during the first softening step (STI), and the second distance (LADIS2) being larger than the first distance (LADIS 1).

Anmelder

Firma

VKR Holding A/S

Land

🇩🇰 Dänemark

Fachgebiete