Wear resistant composite
AssigneeConv Australia Holding Pty Ltd
InventorsOskar LARSSON, Stefan EDERYD
Life of this patent
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Abstract
A composite body and a method for producing an integrally cast composite body, which includes at least two zones. A first zone is substantially formed of metal material, and, a second zone additionally includes a non-metallic reinforcing material, such as cement carbide. The composite body is particularly useful for producing products which have at least one wear resistant zone or surface.
Claims17
A method of producing a composite body which is substantially formed of a casted metal material, the composite body including:
- a first zone, substantially formed of metallic material;
- a second zone, formed of a combination of the metallic material of the first zone and a reinforcing material;
- and
- a transition zone, intermediate the first and second zones, formed of a combination of the metallic material and the non-metallic reinforcing material of the second zone, but, wherein the relative proportion of the reinforcing material is lower than in that of the second zone,
- the method including steps of:
- lining at least a portion of a surface of a mould with a reinforcing material;
- and
- pouring a molten material into the mould.
A product, substantially formed of
- a composite body which is substantially formed of a casted metal material, the composite body including:
- a first zone, substantially formed of metallic material;
- a second zone, formed of a combination of the metallic material of the first zone, and a reinforcing material;
- and
- a transition zone, intermediate the first and second zones, formed of a combination of the metallic material and the non-metallic reinforcing material of the second zone, but, wherein the relative proportion of the reinforcing material is lower than in that of the second zone;
- and
- an integrally formed wear resistant portion incorporating a reinforcing material therein.
Metal matrix composite comprising cemented carbide arranged in a cast iron matrix wherein the cast iron has a carbon content corresponding to a carbon equivalent Ceqv.=% C+(% Si/4+% P/2) of less than about 8 wt-% but more than about 2.5 wt-% and a Si content of less than about 6 wt-% but more than about 1.5 wt-%, and an addition of up to 2.5 wt-% A1 is made to the cast iron.
Dependencies are inferred from the claim text.