Production method of extrusion billet and production method of magnesium alloy material
AssigneesKurimoto, Ltd., Katsuyoshi Kondoh
InventorsKatsuyoshi Kondoh, Makoto Hotta, Jinsun Liao, Kantaro Kaneko, Norio Fujii, Hirohito Kametani, Akihiko Koshi
Life of this patent
Estimating the term…
Abstract
A production method of an extrusion billet includes a step of preparing a plate or lump starting material comprising a magnesium alloy, a step of performing a plastic deformation process at a rolling reduction of 70% or more to the starting material at a temperature of 250° C. or lower to introduce a strain without generating dynamic recrystallization, a step of producing powder by granulating the material after the plastic deformation process, and a step of producing a powder billet by compressing the powder.
Claims7
A production method of an extrusion billet comprising the steps of:
- preparing a plate starting material comprising a magnesium alloy and having a thickness of 3 mm to 10 mm;
- performing a plastic deformation process at a rolling reduction of 70% or more to said plate starting material at a temperature of 250° C. or lower to introduce a strain without generating dynamic recrystallization;
- producing powder by granulating the material after said plastic deformation process;
- and
- producing a powder billet by compressing said powder.
A production method of a magnesium alloy material comprising the steps of:
- preparing a plate starting material comprising a magnesium alloy and having a thickness of 3 mm to 10 mm;
- performing a plastic deformation process at a rolling reduction of 70% or more to said plate starting material at a temperature of 250° C. or lower to introduce a strain without generating dynamic recrystallization;
- producing powder by granulating the material after said plastic deformation process;
- producing a powder billet by compressing said powder;
- and
- extruding said powder billet at temperatures of 150 to 400° C.
Dependencies are inferred from the claim text.