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US 12,378,646 B2Granted
Vermicular cast iron alloy, combustion engine block and head
AssigneeTupy S.A.
InventorsCarlos de Souza Cabezas, Eitan Melleras, Marina Furbino Martins
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AssigneeTupy S.A.
InventorsCarlos de Souza Cabezas, Eitan Melleras, Marina Furbino Martins
Estimating the term…
The present invention refers to a vermicular cast iron alloy specially designed for blocks and heads of internal combustion engines that have special requirements for mechanical strength and machinability; said vermicular alloy has a microstructure that results in high values of mechanical properties, such as a minimum strength limit of 500 Mpa, a minimum yield limit of 350 MPa, along with good machinability; also, wherein the ferritization factor must be such that it is between 3.88 and 5.48. This set of properties makes it possible to design new engine blocks and heads with complex geometry, high mechanical properties, without compromising machinability, making it attractive both from a technical and economic point of view.
Vermicular cast iron alloy consisting of carbon contents in the range of 2.6% to 3.2%, manganese values between 0.1% to 0.3%, maximum phosphorus of 0.05%, chromium less than 0.06%, tin less than 0.03%, silicon ranging between 4.6% and 5.7%, copper less than 0.20%, magnesium values between 0.005 to 0.030% and cerium values between 0.005 to 0.030%;
Vermicular cast iron alloy consisting of carbon contents in the range of 2.6% to 3.2%, manganese values between 0.1% to 0.3%, maximum phosphorus of 0.05%, chromium less than 0.06%, tin less than 0.03%, silicon ranging between 4.6% and 5.7%, and copper less than 0.20%;
Vermicular cast iron alloy consisting of carbon contents in the range of 2.6% to 3.2%, manganese values between 0.1% to 0.3%, maximum phosphorus of 0.05%, chromium less than 0.06%, tin less than 0.03%, silicon ranging between 5.6% and 5.7%, and copper less than 0.20%;
Dependencies are inferred from the claim text.