摘要:
A soft dilute copper alloy material includes 2 mass ppm to 12 mass ppm of sulfur, more than 2 mass ppm and not more than 30 mass ppm of oxygen, 4 mass ppm to 55 mass ppm of Ti, and a balance including copper. An average crystal grain size is not more than 20 μm in a surface layer up to a depth of 50 μm from a surface. The average crystal grain size in the surface layer is less than the average crystal grain size in an inner portion located more interiorly than the surface layer.
摘要:
Provided are a soft dilute-copper alloy wire and soft dilute-copper alloy twisted wire which have high electrical conductivity and high bending life and can limit disconnection during use compared with oxygen-free copper wire, and also provided are an insulated wire, coaxial cable, and composite cable using the soft dilute-copper alloy wire and soft dilute-copper alloy twisted wire. The soft dilute-copper alloy wire is subjected to annealing treatment by elongation processing of soft dilute-copper alloy material comprising copper and an additive element selected from the group consisting of Ti, Mg, Zr, Nb, Ca, V, Ni, Hf, Fe, Mn and Cr, with inevitable impurities as the balance, wherein the soft dilute-copper alloy wire has an average grain size that is 20 μm or less in a surface layer having a depth of 50 μm from the surface, and an elongation value that is at least 1% higher than the average elongation value of oxygen-free copper wire that has been subjected to the aforementioned annealing treatment.
摘要:
A weldment includes metal materials that are welded to each other. At least one of the metal materials includes pure copper including an inevitable impurity, more than 2 mass ppm of oxygen, and an additive element selected from the group consisting of Mg, Zr, Nb, Fe, Si, Al, Ca, V, Ni, Mn, Ti and Cr. A method of manufacturing a weldment includes melting a dilute copper alloy material by SCR continuous casting and rolling at a molten copper temperature of not less than 1100° C. and not more than 1320° C. to make a molten metal, forming a cast bar from the molten metal, forming a dilute copper alloy member by hot-rolling the cast bar, and welding the dilute copper alloy member to a metal material. The dilute copper alloy material includes the pure copper, more than 2 mass ppm of oxygen, and the additive element,?
摘要:
A dilute copper alloy material used in an environment with presence of hydrogen includes pure copper including an inevitable impurity, more than 2 mass ppm of oxygen, and an additive element selected from the group consisting of Mg, Zr, Nb, Ca, V, Fe, Al, Si, Ni, Mn, Ti and Cr, the additive element being capable of forming an oxide in combination with the oxygen. A method of manufacturing a dilute copper alloy member excellent in characteristics of resistance to hydrogen embrittlement includes melting the dilute copper alloy material by SCR continuous casting and rolling at a copper melting temperature of not less than 1100° C. and not more than 1320° C. to make molten metal, forming a cast bar from the molten metal, and forming the dilute copper alloy member by hot-rolling the cast bar.
摘要:
The present invention provides a flexible flat cable having high conductivity and high bending durability, and a method for manufacturing the same. The present invention is a flexible flat cable comprising conductors and insulating films applied over the conductors, wherein the conductor is comprised of at least one additive element selected from the group consisting of magnesium (Mg), zirconium (Zr), niobium (Nb), calcium (Ca), vanadium (V), nickel (Ni), manganese (Mn), titanium (Ti), and chromium (Cr); 2 mass-ppm or more of oxygen; and the balance being inevitable impurity and copper, wherein the conductor has such a recrystallized texture that the size of crystal grains in the inner area of the conductor is large and that of in the surface area thereof is smaller than that of the inner area, wherein both sides of the conductor are sandwiched between insulating films.
摘要:
A method of manufacturing a soft-dilute-copper-alloy material includes a plastic working of a soft-dilute-copper-alloy including an additional element selected from the group consisting of Ti, Mg, Zr, Nb, Ca, V, Ni, Mn and Cr, and a balance consisting of copper and inevitable impurity, and a subsequent annealing treatment of the soft-dilute-copper-alloy. A working ratio in the plastic working before the annealing treatment is not less than 50%.
摘要:
A dilute copper alloy material used in an environment with presence of hydrogen includes pure copper including an inevitable impurity, more than 2 mass ppm of oxygen, and an additive element selected from the group consisting of Mg, Zr, Nb, Ca, V, Fe, Al, Si, Ni, Mn, Ti and Cr, the additive element being capable of forming an oxide in combination with the oxygen. A method of manufacturing a dilute copper alloy member excellent in characteristics of resistance to hydrogen embrittlement includes melting the dilute copper alloy material by SCR continuous casting and rolling at a copper melting temperature of not less than 1100° C. and not more than 1320° C. to make molten metal, forming a cast bar from the molten metal, and forming the dilute copper alloy member by hot-rolling the cast bar.
摘要:
Provided are a soft dilute-copper alloy wire and soft dilute-copper alloy twisted wire which have high electrical conductivity and high bending life and can limit disconnection during use compared with oxygen-free copper wire, and also provided are an insulated wire, coaxial cable, and composite cable using the soft dilute-copper alloy wire and soft dilute-copper alloy twisted wire. The soft dilute-copper alloy wire is subjected to annealing treatment by elongation processing of soft dilute-copper alloy material comprising copper and an additive element selected from the group consisting of Ti, Mg, Zr, Nb, Ca, V, Ni, Hf, Fe, Mn and Cr, with inevitable impurities as the balance, wherein the soft dilute-copper alloy wire has an average grain size that is 20 μm or less in a surface layer having a depth of 50 μm from the surface, and an elongation value that is at least 1% higher than the average elongation value of oxygen-free copper wire that has been subjected to the aforementioned annealing treatment.
摘要:
A soft dilute copper alloy wire is composed of a soft dilute copper alloy material containing an additive element selected from the group consisting of Ti, Mg, Zr, Nb, Cu, V, Ni, Mn, and Cr, and balance comprising Cu. An average size of crystal grains lying from a surface of the soft dilute copper alloy wire at least to a depth of 20% of a wire diameter is not greater than 20 μm.
摘要:
Provided are a soft dilute copper alloy material, a soft dilute copper alloy wire, a soft dilute copper alloy sheet, a soft dilute copper alloy stranded wire, and a cable, a coaxial cable and a composite cable using same. The disclosed soft-3dilute-copper-alloy material contains: copper; at least one additional element selected from the group consisting of Ti, Mg, Zr, Nb, Ca, V, Ni, Mn, and Cr; and inevitable impurities as the remainder. The soft dilute copper alloy material is characterized in that the average grain size is at most 20 μm in the surface layer up to a depth of 50 μm from the surface.