Vitreous enamel coverings favourably distinguish the
following indicators:
·
ability to be cleaned easily
·
high detergents resistance
·
high resistance to different types of radiation
·
high level of antibacterial and electroinsulating
properties
·
high resistance to a complex of the external adversely
influencing factors (paint and varnish and polymeric coverings are steady
·
selectively to one type of aggressive or abrasive
influences
Technical
characteristic of products with a vitreous enamel covering:
Vitreous
enamel coverings in comparison with other coverings existing now are most
profitable and in all respects surpass analogs:
·
On different types of chemical firmness, in particular
on vlago-and alkali resistances — by 2-6 times
·
On wear resistance and hardness — by 3-3,5 times
·
On heat resistance — by 7 times
High
resistance of vitreous enamel coverings to the external environment in
comparison with analogs provides:
·
durability of a product — more than by 10 times
·
maintaining appearance and structure of a product —
for 50 years and more
Technological
and economic indicators of metal products with various coverings:
|
Indicator |
Paint and varnish covering |
Polymeric covering |
Vitreous
enamel |
|
|
color |
white |
|||
|
Moisture resistance/losses of weight, g/m2 |
Class В/2 |
Class В/2 |
Class АА/0 |
Class АА/0 |
|
Acid resistances/losses of weight, g/m2 |
Class С/6 |
Class АА/2 |
Class АА/1 |
Class АА/1 |
|
Alkali resistances / losses of weight, g/m |
45 |
35 |
9 |
9 |
|
Resistance to combustion products, point |
2 |
2 |
5 |
5 |
|
Wear resistance (hardness on Maossa) |
2-3 |
2-3 |
6-7 |
6-7 |
|
Heat resistance, C |
100 |
100 |
700 |
700 |
|
Service life in atmospheric conditions, years |
3 |
7 |
70-100 |
70-100 |
Such
properties of the enameled panels as the crash-worthiness, resistance to
influence of hostile environment, simplicity of cleaning, resistance to UV
radiation allows to lower object charges considerably.
Investments and operational costs of products with
various coverings:
|
|
Paint and varnish
covering |
Polymeric covering |
Vitreous
enamel |
|
Capital investments
on production stoimost1 sq.m, y.e. |
9,7 |
19,4 |
33 |
|
Operational costs on
the current content of 1 sq.m within 25 years, y.e. |
63,06 |
145,6 |
0 |
|
Operational costs on
the current content of 1 sq.m within 50 years, y.e |
242,6 |
291,3 |
0 |
|
Total: Capital
investment + operational costs on the current content of 1 sq.m within 50
years, y.e. |
252,3 |
310,6 |
33 |