SILVERSTAR

Since the end of 1998, Euroglas have been producing coated glass in their own plant. At first, at the site in Haldensleben, Germany. Since 2009, coated glass is produced in Ujazd, Poland. Primarily in-house produced lehr end sizes are processed. Production is focused on heat insulating coatings, but solar control and combined coatings can be produced as well. Based on a technology to the state-of-the-art and low cycle times, the line is capable of achieving up to 40.000 of m² each day. The production line runs in four shifts.

1. Infeed

A portal loading system assures constant feeding to the line. It takes glass from four innenlader stillages and places it onto the line. Glass thicknesses from 3 to 17 mm, and sizes of 1.800 x 3.210 up to 6.000 x 3.210 mm - and mixtures - can be processed. Cut sizes can be loaded onto the line inbetween the lehr end sizes.

2. Cleaning

Glass sheets are cleaned by using purest water - free from any environmentally hazardous chemicals. Passage across two successive zones assures surface cleanness required for the coating process. Water using is 100 % treated, with water consumption, hence, being reduced enormous. For optimal work of the washing machine, glass thickness measure automatically. It is only used decalcified and desalted water. Integrated water preparation cleans common water suitably. It is equal with distilled water.

3. Vacuum coating

Very thin advanced coatings, k-values of 1.0, combined heat/solar control coatings of highest selectivity - all these features are achieved on our coating line. The coatings are applied onto the glass in high-vacuum by the magnetron sputtering sources using dc and medium-frequency technology. The flexible, extendable concept of the line - individual coating stations can be quickly displaced - allows for the line to be transferred within the shortest period of time. Furthermore, future and even more complex coating systems can be produced.

4. Process controll

Process control is performed by using several transmission spectrometers in the coating process, with all sputtering sources being equipped with plasma emission monitors to precisely adjust coating parameters. Glass sheets are controlled across total width of 3.210 mm, by measuring reflection and transmission spectra as well as the silver coat thickness. This is how Euroglas assure compliance with k and g-values and a constantly uniform reflection colour of glass sheets supplied.

5. Stacking

Finally, glass is stacked onto five innenlader stillages in a 45-second cycle time. All packs can be produced by direct control via the central host computer. Stacking is organized with coat facing the stillage or the sucker, as desired. Of course, goods are sealed against moisture.

Infeed
Load in glass in manufacturing line
Glass cleaning in an washing machine
Glass cleaning in an washing machine
Coating in a magnetron sputter machine
Coating in a magnetron sputter machine
Process control of thermal glass and other coated glass
Process control of thermal glass and other coated glass
Unloading of coated floatglass
Unloading of coated floatglass