Who we are and what we do

ProTec | portrait

We have been a reliable system supplier to the automotive industry for 25 years.

Construction | Tool making | Prototypes | Assemblies | Small series

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ProTec Metalltechnik – your partner for high-quality sheet metal technology and system solutions.

Welcome to ProTec Metalltechnik

For a quarter of a century, we, ProTec Metalltechnik, have been a renowned spearhead in the production of precise sheet metal parts for the automotive industry. We have made a name for ourselves as a system supplier by continually focusing on quality, innovation and technical excellence. In dialogue with all well-known automobile manufacturers, we create tailor-made solutions that are tailored precisely to the needs of our customers. Our specialization: Perfection in sheet metal We specialize in the production of structural components made of metal and offer...
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ProTec | portrait

We have been a reliable system supplier to the automotive industry for 25 years.

raw material

Which steels are used in the automotive industry?

A variety of different steels are used in the automotive industry to produce various components with the required properties.

Here are some of the most common types of steels and their typical uses in automobile construction:

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The selection of steel depends on various factors such as the desired strength, ductility, weldability, corrosion resistance and cost. In the modern automotive industry in particular, there is an increasing focus on reducing the weight of vehicles,

to improve energy efficiency and reduce emissions. This has led to increased use of AHSS and other advanced materials.

These are the most widely used steels in the industry and are used for a variety of structural components, such as body panels, frames, axles and some engine parts.

By adding other elements such as chromium, nickel, molybdenum or vanadium, these steels receive special properties such as improved strength, hardness, corrosion resistance or heat resistance. They are used for highly stressed components such as drive shafts, gears and bearings.

These materials offer greater strength at lower weight, making them particularly suitable for the construction of safety components such as bumpers, doors and other components that contribute to safety in the event of an accident.

Due to their corrosion resistance and surface quality, they are used for exhaust systems, decorative applications and sometimes also for chassis components.

These are used to produce tools and molds for the pressing and stamping processes and are not installed directly in the vehicle.

Galvanized steels or steels treated with other anti-corrosion coatings are common for body panels to protect them against rust.

ProTec | portrait

We have been a reliable system supplier to the automotive industry for 25 years.

Coatings

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Surface coatings

These processes can be used individually or in combination to meet specific requirements for different automotive production applications.

The choice of the appropriate surface treatment depends on the technical requirements, the desired service life and economic considerations.

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This uses a water-based paint that is applied to the component using an electric field. This technique is often used as a primer to ensure an even and complete coating that protects very well against corrosion.

This chemical treatment creates a layer of phosphate crystals on the steel surface, which serves as a basis for further coatings or to reduce friction during metal-to-metal contact.

This process involves applying a thin layer of zinc to the steel surface, either by hot dipping (hot-dip galvanizing) or electrolytic deposition (galvanizing). This zinc layer protects against rust by forming a barrier and providing cathodic protection.

These processes are used to improve corrosion resistance and increase the adhesion of subsequent layers. It forms a non-metallic conversion layer on the surface.

These processes are used to improve corrosion resistance and increase the adhesion of subsequent layers. It forms a non-metallic conversion layer on the surface.

Applied not to steel, but to aluminum, this electrochemical process is used to create an oxide layer that is corrosion-resistant and wear-resistant.

This heat treatment process introduces nitrogen into the surface of the steel to increase surface hardness and improve wear resistance.

Here, the edge zone of the component is enriched with carbon (and possibly nitrogen) in order to increase the surface hardness without the component losing its toughness.

Exterior vehicle components are often painted to not only provide a specific color and shine, but also to provide an additional layer of protection against environmental influences.

This process involves applying a thin layer of zinc to the steel surface, either by hot dipping (hot-dip galvanizing) or electrolytic deposition (galvanizing). This zinc layer protects against rust by forming a barrier and providing cathodic protection.

 Tel.: +49(0)8171 9333-0

 Fax: +49(0)8171 9333-30

 

 info@protec-metall.com

 www.protec-metall.com

 

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