PVD, DLC Molt coating based on  Carbon DLC

DLC Molt  is a PVD coating based on multilayers of carbon comopounds. DLC layers minimize the adhesion of the plastic matters thereby easing the unmoulding and cleaning of cavities and figures. The maintenance of figures and mobile parts, sliding of eject dies are some of the advantages DLC Molt offers. Moreover, the properties viz. hardness, high resistance towards corrosion and low friction coefficient are maintained. Flubetech has developed DLC Molt for cavities, figures and high-productivity, mould components, specially for PVC and reinforced plastics that contain minerals or fibres charge. The obtaining features and the multilayers sequence that DLC Molt coating presents, allows to obtain an excellent adherence at low temperatures thereby this coating is recommended for quenched and tempered alloys at low temperatures and for pre-treated alloys. The surface and coating preparation steps have been specially developed so as to guaranteeing the surface, original polishness. This coating is specially indicated when the expected production is elevated and when high-quality surface tools are needed.

Benefits of the coating DLC Molt

  • Resistance towards adhesive and abrasive wear.
  • Highly resistant towards corrosion.
  • Less friction due to the tribologic properties of carbon.
  • Maintenance of the troquel's original hardness.
  • Absence of the dimensional distortions during the coating process.
  • Increase of the lifetime while maintaining the original polish. Protection against scratches.
  • Easiness in cleaning. Diminution of maintenance time and steps.
  • If needed, increase of the polishing capacity in industrial dies.

Technical Characteristics

Hardness 27GPa (2700HV)
Friction Coefficient 0.1-0.01
Adherence Excellent
Thickness 2-3µm
Colour Anthracite Black
Obtaining Temperature < 250ºC
Degradation Temperature (oxidation) 450ºC

Successful Applications

  • Generally, plastic injection.
  • Extrusion of plastic matters.
  • Moulds and components fabricated with Aluminium and Chrome alloys.
  • Moulds fabricated with Bronze-Berilium alloys.
  • PVC-injection moulds.
  • Dies and  gravers fabricated with quenched and tempered alloys at low temperatures (e.g.  x 40 Cr 13  “AISI 420”,   “1.2344, H-11” , “1.2379 D-2”).
  • Pre-quenched alloys ( e.g. 1.2378, 1.2311).