Pretrattamento

[fusion_builder_container hundred_percent=”yes” overflow=”visible” type=”flex”][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ background_position=”left top” background_color=”” border_color=”” border_style=”solid” spacing=”yes” background_image=”” background_repeat=”no-repeat” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”0px” margin_bottom=”0px” class=”” id=”” animation_type=”” animation_speed=”0.3″ animation_direction=”left” hide_on_mobile=”no” center_content=”no” min_height=”none” align_self=”flex-start” border_sizes_undefined=”” first=”true” last=”true” hover_type=”none” link=”” border_position=”all”][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” content_alignment_medium=”” content_alignment_small=”” content_alignment=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” sticky_display=”normal,sticky” class=”” id=”” font_size=”” fusion_font_family_text_font=”” fusion_font_variant_text_font=”” line_height=”” letter_spacing=”” text_color=”” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=””][fusion_dropcap color=”#212234″ boxed=”yes” boxed_radius=”0px” class=”” id=””]L[/fusion_dropcap]a fase di pretrattamento è una componente essenziale del processo di verniciatura industriale a polvere, in quanto garantisce una superficie pulita, omogenea e pronta a ricevere il rivestimento. Questa fase è progettata per rimuovere impurità, oli, grassi e residui che potrebbero compromettere l’adesione e la durata della verniciatura.

Introduzione ai Pretrattamenti

• Garantire la pulizia ottimale delle superfici.
• Migliorare l’adesione della vernice.
• Proteggere i manufatti da eventuali fenomeni di corrosione.

• Vasche chimiche, dove acqua e prodotti fosfo-sgrassanti vengono miscelati.
• Elettropompe, che pressurizzano l’impianto e spingono i liquidi attraverso centinaia di ugelli disposti sulle pareti del tunnel.

1. Primo Stadio – Sgrassaggio
   • Applicazione di un prodotto chimico specifico, con parametri di alcalinità/acidità calibrati in base alle esigenze del manufatto.
   • Operazione eseguita a circa 50 °C, per ottimizzare la rimozione di oli e grassi.

   • Controllo continuo dei parametri del liquido, inclusi pH, conducibilità e altre caratteristiche critiche.

2. Secondo Stadio – Primo Risciacquo

   • Risciacquo con acqua chimicamente corretta per rimuovere i residui del composto chimico utilizzato nello sgrassaggio.

3. Terzo Stadio – Risciacquo Approfondito

   • Ulteriore risciacquo per garantire una pulizia più profonda, eliminando qualsiasi traccia residua.

4. Quarto Stadio – Risciacquo Finale
   • Risciacquo definitivo con acqua pulita di rete, controllata per assicurare l’assenza di contaminanti.

Asciugatura e Controllo Finale

• La completa eliminazione dell’umidità residua.
• Una preparazione ottimale per la successiva applicazione della vernice.

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