Tempered glass

An important component of production are high-performance automated glass tempering lines. A feature of these lines is their ability to temper both flat and curved (bent) glass.

The tempering lines serve for bending and tempering of flat transparent glass, body-tinted glass, suffused (satin), enameled, reflective, energy-saving glass.

Production:

Tempering is performed on 4 lines for horizontal tempering of flat and bent glass using furnaces produced by "North Glass” and "Tamglass" (Finland), world leaders in glass processing equipment.

Technical production capabilities

Flat glass tempering:

• Maximum glass size: 2,440 x 4,400 mm
• Glass thickness: 3,5 - 19 mm
• Minimum glass size: 200 x 350 mm, 400 x 120 mm

Maximum size of tempered bent glass:

• Glass thickness: 5 ± 0.5 mm
• 1st section: 3 mm R = 600 mm, 4 mm R = 500 mm, 5-6 mm R = 350 mm, 8-10 mm R= 1,000 mm
• 2nd section: 5-6 mm R = 800 mm, 4.8-10 mm R = 1,000 mm, 12 mm R = 1,200 mm
• 3rd section: 5-6 mm R = 1,300 mm, 8-10 mm R = 1,500 mm, 12-15 mm R = 1,800 mm
• 4th section: 4-6 mm R = 900 mm, 8-10 mm R = 1,300 mm, 12-15 mm R = 1,500 mm
• Possibility of thermal testing of tempered glass (HEAT-SOAK-TESTOVEN)

Operating principle

Tempered glass is obtained by heating ordinary glass to a temperature of 600°C, after which the glass is abruptly cooled by a stream of air. As a result of such actions, redistribution of stresses occurs inside the glass, and thermally tempered glass acquires new qualities:

• bending strength is increased
• impact and impulse strength are increased to 50 N/mm2, according to DIN EN 12600:1996-12
• resistance to temperature changes increases from 40K to 150K
• destruction safety: breaking, the glass disintegrates into small fragments with blunt edges that prevent damage and cuts