Knife for wood processing and methods for plating and surface treating a knife for wood processing
AssigneeAndritz Iggesund Tools Inc.
InventorJennings Drake Carlisle
Life of this patent
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Abstract
A knife structure including a knife body having a cutting surface, a relief surface and a knife clamp surface. The cutting surface and the relief surface intersect at an apex region of the knife body. The knife clamp surface intersects with an end of the relief surface opposite an end of the relief surface that intersects with the cutting surface at the apex region. In one embodiment, the apex region is comprised of an alloy of a base material for the knife body and a boron containing compound. The thermally conductive plating is present on at least the knife clamp surface, the cutting surface and the release surface of the knife body. The thermally conductive plating is not present on the apex region.
Claims14
A knife structure comprising:
- a knife body comprising a cutting surface, a relief surface and a knife clamp surface, wherein the cutting surface and the relief surface intersect at an apex region of the knife body, the apex region being multilayered, wherein within the apex region comprises a core of a base material for the knife body, a first layer that is adjacent to the core of the base material, wherein a carbon content of the first layer is greater than the base material, a second layer of the alloy of the base material and a boron containing compound adjacent to the first layer, wherein the boron containing compound is selected from the group consisting of FeB, Fe2B, CrB2, NiB, B4C, VB2, SiB2, ZrB2, YB6, NdB6, CeB6, TiB2, MoB, WB, and combinations thereof, a third layer that is boronized with additions of chromium and rare earth metals, and a fourth layer of a corrosion protecting composition, wherein the fourth layer provides an exterior surface of the apex region.
A knife structure comprising:
- a knife body having a cutting surface, a relief surface and a knife clamp surface, wherein the cutting surface and the relief surface intersect at an apex region of the knife body, wherein the apex region is multi-layered and comprises a core of a base material for the knife body, a first layer that is adjacent to the core of the base material having a carbon content that is greater than the base material, a second layer of an alloy of the base material and a boron containing compound adjacent to the first layer, a third layer that is boronized with additions of chromium and rare earth metals, and a fourth layer of a corrosion protecting composition, wherein the fourth layer provides an exterior surface of the apex region.
Dependencies are inferred from the claim text.