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    Engine compartmen
    corrosion_experts

    Engine compartmen

    A wide range of parts are used in the engine compartments of trucks. This often results in the combination of different, sometimes high-tensile materials, such as aluminium, stainless steel, plastics and steel. The components fitted therefore need to withstand particularly high temperatures and satisfy a range of corrosion protection requirements

    Exemplary components

    Fastening elementsStamped parts

    Fasteners are used in various geometries and dimensions to establish screwed connections. Depending on the area of use, they are required to meet high requirements. For example, bolts on a truck exhaust are subjected to high temperatures of between 350–500 °C and therefore need to be especially temperature resistant. As a rule, fasteners in the engine compartment need good fastening properties (coefficients of friction) - particularly where different materials are fastened together.

    The engine compartment of a truck contains numerous stamped parts, clips and springs made from steel and stainless steel. These components need to display good protection against contact corrosion whilst at the same time offering good sliding properties.

     

     

    Requirements

    • Corrosion protection (720 h as per DIN EN ISO 9227)
    • Stone impact resistance
    • Temperature resistance
    • Colouring silver or black
    • Ductility
    • Abrasion resistance
    • Defined coefficients of friction
    • Chemical resistance

    Solutions currently commonly used for concrete screws

    Depending on component, DÖRKEN offers various solutions for optimal corrosion protection in the engine compartment: from the use of pure zinc flake systems to the combination of different base coats with an organic or inorganic topcoat. Our specially-developed systems enable a high degree of corrosion protection to be achieved with comparatively very thin coats. In the case of fasteners, secure fastening is therefore achieved against different backings, whilst also effectively avoiding contact corrosion. One particular advantage of the zinc flake system is that it can also be used in components with complex structures and cavities.

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