Importance

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Abstract

The invention relates to a method for producing a displacer component that is coated with a diamond coating or layer as well as such a structural component (as a tribologically loaded part). In order to convey or dose a chemically aggressive fluid, a basic structural component (2, 3) is accurately produced in a first dimension (m1) from a chemically not sufficiently resistant but mechanically sufficiently stable first material (A) in a material removing manner. At least the surface sections of said first accurately sized basic component (2, 3) which are actively involved in the displacement are then coated with an at least 1 .mu.m thick layer (10) of synthetic diamond in a coating process such that a second size (m2) of the structural component is obtained that fits the displacer unit (1). The inventive method makes it possible to produce a chemically resistant, friction reduced structural component for displacing the chemically aggressive fluid.

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First Claim