Knife for wood processing and methods for plating and surface treating a knife for wood processing
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B26D-001/00
C23C-016/38
C23C-008/70
C23C-008/68
C23C-010/28
C23C-008/60
C23C-016/448
B27L-011/02
C23C-008/10
C23C-008/36
C23C-028/00
출원번호
US-0795948
(2013-03-12)
등록번호
US-9068260
(2015-06-30)
발명자
/ 주소
Carlisle, Jennings Drake
출원인 / 주소
ANDRITZ IGGESUND TOOLS INC.
대리인 / 주소
Tutunjian & Bitetto, P.C.
인용정보
피인용 횟수 :
1인용 특허 :
40
초록▼
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
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.
대표청구항▼
1. 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 cor
1. 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. 2. The knife structure of claim 1 further comprising a thermally conductive plating on at least the knife clamp surface, the cutting surface and the relief surface, the thermally conductive plating not being present on the apex region, wherein the thermally conductive plating has a thermal conductivity that is greater than the base material, and the thermally conductive plating transmits heat produced in the apex region to a heat sink that is contact with the knife clamp surface. 3. The knife structure of claim 2, wherein the thermally conductive plating is a composition selected from the group consisting of copper (Cu), silver (Au), gold (Ag), chromium (Cr), molybdenum (Mo), tungsten (W), aluminum (Al), and combinations thereof or the thermally conductive plating is a ceramic composition that is selected from the group consisting of aluminum nitride, boron nitride, silicon carbide and combinations thereof. 4. The knife structure of claim 2, wherein a non-linear non-repeated diffused zone of alloying elements between the apex region and the thermally conductive layer provides for a gradient of mechanical properties within the knife body that obstructs crack propagation. 5. The knife structure of claim 1, wherein the second layer further comprises vanadium boride, yttria stabilized zirconia (YSZ) or a combination thereof. 6. The knife structure of claim 1, wherein the rare earth elements are selected from the group consisting of lanthanum, cerium, neodymium, samarium, europium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and a combination thereof, and the chromium in the second layer is selected from the group consisting of ferro chrome, chrome oxide, chromic acid, chrome carbide, chrome containing alloys and combinations thereof. 7. The knife structure of claim 1, wherein the corrosion protecting composition is a ceramic composition selected from the group consisting of boron nitride, boron carbide, silicon carbide, and combinations thereof, or the corrosion protecting composition is a non-ceramic inorganic selected from the group consisting of WS2, MoS2 and a combination thereof 8. 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. 9. The knife structure of claim 8 further comprising a thermally conductive plating present on at least the knife clamp surface, the cutting surface and the release surface of the knife body, wherein the thermally conductive plating is present covering an entirety of the apex region of the knife structure or the thermally conductive plating is not present on the apex region. 10. The knife structure of claim 9, wherein the thermally conductive plating has a thermal conductivity that is greater than the base material, and the thermally conductive plating transmits heat produced in the apex region to a heat sink that is contact with the knife clamp surface. 11. The knife structure of claim 8, wherein the second layer further comprises vanadium boride, yttria stabilized zirconia (YSZ) or a combination thereof. 12. The knife structure of claim 8, wherein the rare earth elements are selected from the group consisting of lanthanum, cerium, neodymium, samarium, europium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and a combination thereof, and the chromium in the second layer is selected from the group consisting of ferro chrome, chrome oxide, chromic acid, chrome carbide, chrome containing alloys and combinations thereof. 13. The knife structure of claim 8, wherein the corrosion protecting composition is a ceramic composition selected from the group consisting of boron nitride, boron carbide, silicon carbide, and combinations thereof, or the corrosion protecting composition is a non-ceramic inorganic selected from the group consisting of WS2, MoS2 and a combination thereof. 14. The knife structure of claim 8, wherein a non-linear non-repeated diffused zone of alloying elements between the apex region and the thermally conductive layer provides for a gradient of mechanical properties within the knife body that obstructs crack propagation.
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이 특허에 인용된 특허 (40)
Thevenot Francois H. J. (Saint-Etienne FRX) Goeuriot Patrice M. V. (Firminy FRX) Driver Julian H. (Saint-Etienne FRX) Lebrun Jean-Paul R. (Bougival FRX), Apparatus for the boronizing of pieces made of metal or cermet and surface-bornished pieces.
Gray Paul E. (North East MD) Headinger Mark H. (Hockessin DE), Coating a composite article by applying a porous particulate layer and densifying the layer by subsequently applying a c.
Pillhoefer Horst (Roehrmoos DEX) Thoma Martin (Munich DEX) Walter Heinrich (Friedberg DEX) Adam Peter (Dachau DEX), Method and apparatus for coating a structural component by gas diffusion.
Aves ; Jr. William L. (1703 Hilltop La. Arlington TX 76013) Aves Gary A. (2600 Partridge La. Arlington TX 76017), Method for treating continuous extended lengths of tubular member interiors.
von Matuschka Alfred G. (Sauerlach DEX) Trausner Norbert (Betzigau DEX), Process for boriding metals and metal alloys by means of solid boriding agents.
Sekhar Jainagesh A. (Cininnati OH) Bhaduri Sarit B. (Cininnati OH), Process for producing a porous ceramic and porous ceramic composite structure utilizing combustion synthesis.
Beyer Hans-Hermann (Kahl DEX) Baudis Ulrich (Hanau DEX) Biberbach Peter (Rodenbach DEX) Weber Wolfgang (Karlstein DEX), Salt bath for the currentless production of wear resistant boride layers.
Thevenot Francois H. J. (Saint-Etienne FRX) Goeuriot Patrice M. V. (Firminy FRX) Driver Julian H. (Saint-Etienne FRX) Lebrun Jean-Paul R. (Bougival FRX), Surface-boronized pieces.
Yves Madec FR; Lionel Vandenbulcke FR; Christian Robin-Brosse FR; Jacques Thebault FR; Stephane Goujard FR, Thermochemical treatment, in halogenated atmosphere, of a carbon-containing material.
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