The reliability and performance of a Bovone system.
Bovone can boast a history of over seventy years in the glass silvering processes: since 1954 he sensed the need to develop an automatic system for the galvanic copper plating process to protect the silver layer of the mirror.Today, Bovone’s silver plating lines are at the top end of the international panorama of manufacturers. The glass sheet enters production and, in a fully automated manner, the mirror comes out. These large lines are customized according to specific customer requirements.
The lines are entirely assembled at the Ovada warehouse, they are tested, disassembled, shipped and reassembled at customer’s premises thanks to the professionalism and competence of a highly specialized team. Hardly a Bovone line stops: Bovone in the world is synonymous not only with excellence but also with reliability. If the customer needs a machine that works on three shifts, a Bovone line is the solution.
Bovone silvering lines are able to process glass up to 6 meters by 3.2 meters with the same identical quality.
HIGHLY CUSTOMIZABLE AND CONFIGURABLE
The extreme integrability of modular components, makes Bovone systems
strongly customizable and configurable progressively, so they can grow with the user over time.
The lines are made up of integrable modules
THREE GOOD REASONS for choosing Bovone silvering lines
MODULARITY AT THE SERVICE OF CUSTOMIZATION
The Bovone silvering lines are a jewel of modularity and component integration, for flexible and customized configurations.
QUALITY WITHOUT COMPROMISE
No compromise on the finish of the piece, as always impeccable, without sacrificing a high and constant productivity over time.
FLAT AND PARABOLIC MIRRORS
Perfect for making flat mirrors, they are indispensable in the production of parabolic mirrors, “Concentrated Solar Panels”, both for concentrating solar power plants.
LOADING AND SLAB PREPARATION
The glass sheet is loaded into the line and then proceeds to the surface preparation section of the glass divided as follows:
- First washing section composed of two cylindrical brushes and connected sprinklers acting on the two surfaces of the slab: this section has the task of removing the lucite.
- Degreasing section equipped with cup brushes mounted on a mobile frame acting with transversal movement compared to the advancement of the glass and with the use of a cerium oxide solution. This section has the task of eliminating the surface oxidation of the glass and any traces of dirt on the surface to be silvered.
- Second washing section composed of cylindrical brushes and connected sprinklers with the aim of completely eliminating any traces of cerium.
APPLICATION OF CHEMICAL SOLUTIONS
This section is composed differently depending on the chemical process and the supplier of the chemical solutions. In general, this section is divided as follows:
- Chemical sensitization section where the surface of the glass is sprayed with chemical compounds and with a subsequent rinsing in order to prepare the surface of the glass for the following silvering operation
- Silver plating section where the glass is sprayed with a silver-based solution and with a subsequent rinsing
- Copper plating solution where the sheet is sprayed with a copper-based solution or with a passivator and with a subsequent rinsing.
All the frames of the chemical section are equipped with covers and air suction in the reaction zones.
DRYING AND PRE-PAINTING OVEN
In the drying section, the glass surfaces are dried while in the pre-painting oven the plate is heated to facilitate the adhesion of the metal layers applied within the chemical section on the upper surface of the plate. The plate is also brought to the correct temperature for painting.
FIRST CURTAIN COATER
In the first coating section, a first layer of paint is deposited on the surface of the glass in order to seal the metal film applied in the previous chemical section.
INTERMEDIATE OVEN
This section is divided as follows:
- flash-off section where the solvent vapors are exhausted.
- heating section where the paint drying takes place. The heating can take place by means of IR lamps or gas panels.
- air cooling section where, by means of fans placed across the line, the temperature of the glass is lowered before being painted again in the next section.
SECOND CURTAIN COATER
As in the first section, a second layer of paint is deposited on top of the first one already applied.
FINAL OVEN
This section is divided as follows:
- flash-off section where the solvent vapors are exhausted.
- heating section where the drying and baking of the paint takes place. Heating and baking can take place by means of IR lamps or gas panels.
COOLING
This section is divided as follows:
forced air cooling section generated by fans positioned across the water line section by sprinklers.
PULIZIA FINALE E SCARICO
Questa sezione è così composta:
- sezione di pulizia ad acido dove avviene l’eliminazione di eventuali tracce di argento sulla superficie inferiore della lastra
- sezione di lavaggio mediante spazzole cilindriche e relative rampe di aspersione
- sezione di asciugatura per asciugare le superfici della lastra
- sezione di scarico dove avviene lo scarico della lastra