1. Inicio
  2. "
  3. Servicio de acabado
  4. "
  5. Revestimiento de conversión al cromato

Revestimiento de conversión al cromato

Alisado de vapor

Revestimiento de conversión al cromato Galería de superficies y acabados

Nuestras modernas instalaciones de mecanizado cuentan con ingenieros expertos y especialistas en control de calidad, lo que garantiza que su Revestimiento de conversión al cromato Surfaces Finishes Solution no sólo cumple las normas de rendimiento y seguridad, sino que las supera.
images_ctfassets_net-Electroless_Nickel_Plating_01 (1)
imagen
images_ctfassets_net-Electroless_Nickel_Plating_01 (1)
imagen
images_ctfassets_net-Electroless_Nickel_Plating_01 (1)
imagen

Which Materials Use Chromate Conversion Coating?

Metals like aluminum, zinc, and magnesium, benefit most from chromate conversion finishing and why each requires a tailored process for lasting protection.

Aluminium Alloys

Aluminium is the most common substrate for chromate conversion coating, especially in aerospace, electronics and general manufacturing. The process enhances corrosion resistance of lightweight aluminium parts without significant dimensional change, crucial for precision assemblies.

Zinc, Magnesium, and Other Alloys

Beyond aluminium, chromate conversion treatments are used on zinc or zinc-plated steel (especially fasteners), magnesium alloys, cadmium-plated parts, copper, tin, silver alloys, and other specialty substrates. For example, zinc plating followed by chromate conversion enhances the zinc’s corrosion-protection performance.

Pretreatment for Other Finishes

Chromate conversion is often used as a pretreatment before painting, powder coating or adhesive bonding. The coating acts as a primer layer, improving the adhesion of subsequent coatings and preserving the underlying metal from corrosion.

Precision Machined Parts Requiring Finishing

For a machining house like XC Machining, where machined parts may have tight tolerances, finely machined surfaces and may require finishing for functional coatings, offering chromate conversion finishing means you can provide a full solution: from CNC machining to surface treatment to delivery.

Soluciones de fabricación de precisión

Experimente el mecanizado de precisión de alta calidad para necesidades de fabricación variadas. Desde la creación de prototipos hasta la producción en serie, destacamos en geometrías complejas y exigencias estéticas.

¿Listo para elevar su proyecto?

Dé vida a sus diseños con XC Machining

Experimente la ingeniería de precisión con XC Machining. Desde prototipos detallados hasta producción de gran volumen, estamos aquí para convertir sus conceptos en realidad. Póngase en contacto con nosotros hoy mismo para hablar de las necesidades de su proyecto.

Artículos relacionados

Amplíe sus conocimientos y manténgase informado con nuestra completa colección de artículos y publicaciones. Cada artículo ha sido cuidadosamente seleccionado para adaptarse a sus intereses específicos, ofreciéndole ideas y actualizaciones que se ajustan a las necesidades de su sector.

Preguntas frecuentes

Revestimiento de conversión al cromato

  • What is the primary purpose of chromate conversion coating?

    Chromate conversion coating provides a protective, corrosion-resistant layer on metals like aluminum and zinc. It also improves paint adhesion and maintains electrical conductivity, making it ideal for aerospace, electronics, and automotive applications. 

  • How does chromate conversion differ from anodizing or plating?

    Unlike anodizing or electroplating, chromate conversion does not add a thick external layer. Instead, it chemically transforms the surface itself into a thin, protective film, less than 1 µm, preserving dimensional accuracy while improving corrosion resistance. 

  • Can chromate conversion coating be applied after CNC machining?

    Yes. In fact, chromate conversion is most effective on freshly machined or cleaned metal surfaces. At XC Machining, parts are cleaned, deoxidized, and then conversion-coated to ensure optimal bonding, uniform finish, and protection without altering critical tolerances. 

  • Are there environmentally safe alternatives to hexavalent chromate coatings?

    Absolutely. Modern trivalent chromate and “chrome-free” conversion coatings offer comparable corrosion protection with reduced environmental and health risks. XC Machining uses REACH- and RoHS-compliant finishes to meet global sustainability standards. 

  • How long does chromate conversion coating last?

    The longevity of a chromate conversion coating depends on the environment and maintenance. In controlled conditions, it can protect aluminum parts for years. When combined with paints or sealants, it delivers exceptional long-term durability and resistance to corrosion. 

es_ESSpanish
Envíenos sus requisitos detallados