High strength titanium copper alloy, manufacturing method therefor, and terminal connector using the same
AssigneeNippon Mining & Metals Co., Ltd.
InventorsMichiharu Yamamoto, Tositeru Nonaka, Takahiro Umegaki
Life of this patent
Estimating the term…
Abstract
A high strength titanium copper alloy consists of Ti at 2.0% by mass or more to 3.5% by mass or less; the balance of copper and inevitable impurities; an average grain size of 20 μm or less; and a 0.2% proof stress expressed by “b” of 800 N/mm2 or more. The alloy further comprises a bending radius ratio (bending radius/sheet thickness) not causing cracking as expressed by “a” by a W-bending test in a transverse direction to a rolling direction, wherein “a” and “b” satisfy a≦0.05×b−40
Claims29
A high strength titanium copper alloy consisting of Ti at 2.0% by mass or more to 3.5% by mass or less;
- the balance of copper and inevitable impurities;
- and
- the average grain size of 20 μm or less;
- the alloy further comprising a 0.2% proof stress expressed by “b” of 800 N/mm2 or more;
- and
- a bending radius ratio (bending radius/sheet thickness) not causing cracking as expressed by “a” by a W-bending test in a transverse direction to a rolling direction;
- wherein “a” and “b” satisfy a≦0.05×b−40.
A high strength titanium copper alloy consisting of Ti at 2.0% by mass or more to 3.5% by mass or less;
- at least one of Zn, Cr, Zr, Fe, Ni, Sn, In, Mn, P, and Si at 0.01% by mass or more to 3.0% by mass or less in total;
- and
- the balance of copper and inevitable impurities;
- the alloy further comprising an average grain size of 20 μm or less;
- a 0.2% proof stress expressed by “b” of 800 N/mm2 or more;
- and
- a bending radius ratio (bending radius/sheet thickness) not causing cracking as expressed by “a” by a W-bending test in a transverse direction to a rolling direction;
- wherein “a” and “b” satisfy a≦0.05×b−40.
A high strength titanium copper alloy which is subjected to an aging process after press working, the alloy consisting of:
- Ti at 2.0% by mass or more to 3.5% by mass or less;
- and
- the balance of copper and inevitable impurities;
- the alloy further comprising a grain size of 5 to 15 μm;
- wherein cracking does not occur by a W-bending test in a transverse direction to a rolling direction with a bending radius of zero before the aging process, and the hardness of the worked matrix after the aging process is 300 Hv or more.
A high strength titanium copper alloy which is subjected to an aging process after press working, the alloy consisting of:
- Ti at 2.0% by mass or more to 3.5% by mass or less;
- at least one of Zn, Cr, Zr, Fe, Ni, Sn, In, Mn, P, and Si at 0.01% by mass or more to 3.0% by mass or less in total;
- and
- the balance of copper and inevitable impurities;
- the alloy further comprising a grain size of 5 to 15 μm;
- wherein cracking does not occur by a W-bending test in a transverse direction to a rolling direction with a bending radius of zero before the aging process, and the hardness of the worked matrix after the aging process is 300 Hv or more.
A high strength titanium copper alloy consisting of:
- Ti at 2.0% by mass or more to 3.5% by mass or less;
- and
- the balance of copper and inevitable impurities;
- the alloy further comprising a tensile strength of 1200 MPa or more and an electrical conductivity of 10% IACS or more.
A high strength titanium copper alloy consisting of:
- Ti at 2.0% by mass or more to 3.5% by mass or less;
- Zn at 0.05% by mass or more to 2.0% by mass or less;
- at least one of Cr, Zr, Fe, Ni, Sn, In, Mn, P, and Si at 0.01% by mass or more to 3.0% by mass or less in total;
- and
- the balance of copper and inevitable impurities;
- the alloy further comprising a tensile strength of 1200 MPa or more and an electrical conductivity of 10% IACS or more.
A high strength titanium copper alloy which is subjected to an aging process after press working, the alloy consisting of:
- Ti at 2.0% by mass or more to 3.5% by mass or less;
- and
- the balance of copper and inevitable impurities;
- the alloy further comprising a worked matrix having a hardness of 345 Hv or more after the aging process.
A high strength titanium copper alloy which is subjected to an aging process after press working, the alloy consisting of:
- Ti at 2.0% by mass or more to 3.5% by mass or less;
- Zn at 0.05% by mass or more to 2.0% by mass or less;
- at least one of Cr, Zr, Fe, Ni, Sn, In, Mn, P, and Si at 0.01% by mass or more to 3.0% by mass or less in total;
- and
- the balance of copper and inevitable impurities;
- the alloy further comprising a worked matrix having a hardness of 345 Hv or more after the aging process.
Dependencies are inferred from the claim text.