A METHOD OF PROCESSING PRODUCTS MADE OF SODIUM-CALCIUM-SILICON PACKAGING GLASS HAVING SURFACE MODIFIED WITH ALUMINIUM COMPOUNDS

摘要

A method of processing products made of sodium-calcium- silicon glass consists in that, the temperature of products in the range of transformation temperature is maintained for 15 to 1800 seconds from the moment of spreading nanopowder on the product being on conveyor (3), and possibly additionally in first sections of the annealing lehr (7a, 7b) depending on the size of the product and speed of the conveyor (3). The nanopowder Al(OH)3 is spread during formation in glass forming machine (1) by indirect spraying on shaping surfaces of the mould before their closing on the gob of molten glass, or it is spread directly on the products in the hot end coating hood placed on the conveyor, where the area of the hot end coating hood is closed by a thermal barrier on entrance and exit.