Surface treatment and heat treatment

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The overview below shows the thermal and surface treatments that we provide as standard to our partners. If necessary, we will also provide the necessary documentation. If the method you require is not listed, please contact our managers – we may still be able to help you.

Fe alloys

Blackening

Black finish or blackening is a conversion coating applied to metallic materials. It is used to add corrosion resistance and minimize light reflection.

Blackening

Phosphating

The surface of the material after the phosphating process is porous and suitable as a conversion layer for subsequent painting or coating.

Phosphating

Nitriding

Nitriding is a surface hardening process in which nitrogen atoms combine with the surface of a metal alloy.

Nitriding

Tenifer/short-time nitriding

A series of patented hardening processes that diffuse nitrogen and carbon into metals at special temperatures during a salt bath.

Tenifer/short-time nitriding

TiN coating

Titanium nitride is an extremely hard ceramic material that is often used as a coating on titanium alloys (and other alloys) to improve the surface properties of the material.

TiN coating

Pickling and passivation

Passivation is the controlled formation of a protective layer on a metal surface, preventing corrosion and surface damage. This is achieved by the action of chemicals or electrochemical methods without changing the colors.

Pickling and passivation

Sandblasting

The process of manipulating very small pieces of material at high speed into a surface for the purpose of cleaning or etching a (metal) surface.

Sandblasting

Polishing

Metal polishing is a finishing method that uses an abrasive material to smooth surfaces. After polishing, the surfaces of metal objects are free from defects and become more reflective and shiny

Polishing

Painting according to customer specifications

We can customize our surface finishes to our customers’ wishes – please let us know your requirements.

Painting according to customer specifications

Chemical and galvanic nickel plating

Protection in the form of a galvanic coating protects the parts against corrosion. It also significantly improves the appearance of the final product.

Chemical and galvanic nickel plating

Zinc plating with passivation

We can customize our surface finishes to our customers’ wishes – please let us know your requirements.

Zinc plating with passivation

Al alloys

Natural anodizing

A smooth and uncolored film that is transparent and shows the appearance of the underlying metal.

Natural anodizing

Colored anodizing (red, black, blue, green)

Anodizing is an electrochemical process that converts a metal surface into a decorative, durable, and corrosion-resistant finish – in a variety of colors.

Colored anodizing (red, black, blue, green)

Hard anodizing

Higher quality and thicker corrosion protection layer, increased wear resistance and reduced friction resistance.

Hard anodizing

Heat treatment

Oil and vacuum quenching

A hardening process, the purpose of which is to transform the material into an austenitic and resistant structure.

Oil and vacuum quenching

Cementing

Carburizing is a widely used surface hardening process that increases wear resistance.

Cementing

Tempering

A heat treatment used to increase the toughness of iron-based alloys. Tempering is usually performed after hardening to reduce some of the excess hardness.

Tempering

Annealing

A heat treatment process used mostly to increase ductility and reduce hardness of a material.

Annealing