Self-adjusting blade
AssigneeBTG Eclepens S.A.
InventorsAntoine Beran, Silvano Freti
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Abstract
A self-adjusting blade for engagement with a moving work surface, comprising a steel strip elongated in a first direction between first and second sides, said strip having an edge section along said first side for contact with said work surface, and said edge section being hardened to a hardness exceeding that of the remaining part of said strip. The self-adjusting blade is provided with a coating of a low wear resistance material covering substantially all of said edge section at least on the part thereof contacting the work surface,
Claims8
A self-adjusting blade for engagement with a moving work surface, comprising a steel strip elongated in a first direction between first and second sides, said strip having an edge section along said first side for contact with said work surface, and said edge section being hardened to a hardness exceeding that of the remaining part of said strip, characterized by a coating of a low wear resistance material covering substantially all of said edge section at least on the part thereof contacting the work surface.
A self-adjusting blade according to any preceding claim, wherein said steel strip is constituted by a cold rolled hardened and tempered strip having the composition (percent by weight):
- C 0.46-0.70;
- Si 0.2-1.5;
- Mn 0.1-2.0;
- Cr 1.0-6,0;
- Mo 0.5-5;
- V 0.5-1.5;
- B≦0.01;
- Ni≦1.0;
- Nb≦0.2.
A self-adjusting blade according to any preceding claim, wherein said edge section is provided with a bevel.
Dependencies are inferred from the claim text.