JP2012255214A5

JP2012255214A5 -

Info

Publication number: JP2012255214A5
Application number: JP2012167264A
Authority: JP
Filing date: 2012-07-27
Publication date: 2013-08-15
Anticipated expiration: 2027-08-22

Claims

Si: 0.10 to 0.60 mass%,
Fe: 0.05-0.60 mass%,
Cu: more than 0.70 to less than 1.0% by mass,
Mn: 0.10 to 1.80% by mass,
Mg: more than 0.70 to 1.50% by mass,
Zr: more than 0.10 to less than 0.20% by mass,
Ti: 0.03 to 0.25% by mass,
An aluminum alloy plate for a battery case, comprising the balance Al and unavoidable impurities and not subjected to artificial aging treatment before the case is formed.

Furthermore, B: 0.02 mass% or less is contained, The aluminum alloy plate for battery cases of Claim 1 characterized by the above-mentioned.

Furthermore, Cr: 0.35 mass% or less is contained, The aluminum alloy plate for battery cases of Claim 1 or Claim 2 characterized by the above-mentioned.

An ingot is produced by casting a molten aluminum alloy having the composition according to claim 1 by a semi-continuous casting method,
After subjecting the ingot to a homogenization treatment of holding at 500 to 600 ° C. for 1 hour or longer,
Hot rolling is started at a temperature of 430 to 560 ° C. to form a hot rolled sheet,
After cold rolling at a rolling rate of 50% or more,
Intermediate annealing,
Furthermore, the final cold rolling with a rolling rate of 10 to 60% is performed.
The manufacturing method of the aluminum alloy plate for battery cases characterized by the above-mentioned.

An ingot is produced by casting a molten aluminum alloy having the composition according to claim 2 by a semi-continuous casting method,
After subjecting the ingot to a homogenization treatment of holding at 500 to 600 ° C. for 1 hour or longer,
Hot rolling is started at a temperature of 430 to 560 ° C. to form a hot rolled sheet,
After cold rolling at a rolling rate of 50% or more,
Intermediate annealing,
Furthermore, the final cold rolling with a rolling rate of 10 to 60% is performed.
The manufacturing method of the aluminum alloy plate for battery cases characterized by the above-mentioned.

An ingot is produced by casting a molten aluminum alloy having the composition according to claim 3 by a semi-continuous casting method,
After subjecting the ingot to a homogenization treatment of holding at 500 to 600 ° C. for 1 hour or longer,
Hot rolling is started at a temperature of 430 to 560 ° C. to form a hot rolled sheet,
After cold rolling at a rolling rate of 50% or more,
Intermediate annealing,
Furthermore, the final cold rolling with a rolling rate of 10 to 60% is performed.
The manufacturing method of the aluminum alloy plate for battery cases characterized by the above-mentioned.

The said intermediate annealing is batch annealing hold | maintained at 300-400 degreeC for 1 hour or more, The manufacturing method of the aluminum alloy for battery cases of any one of Claim 4 thru | or 6 characterized by the above-mentioned.

The intermediate annealing is continuous annealing in which heating is performed at a temperature rising rate of 10 ° C / second or more, holding at 450 to 550 ° C for 10 minutes or more, and cooling at a temperature decreasing rate of 10 ° C / second or more. Item 7. A method for producing an aluminum alloy for battery cases according to any one of Items 4 to 6.

Si: 0.10 to 0.60 mass%,
Fe: 0.05-0.60 mass%,
Cu: more than 0.70 to less than 1.0% by mass,
Mn: 0.10 to 1.80% by mass,
Mg: more than 0.70 to 1.50% by mass,
Zr: more than 0.10 to less than 0.20% by mass,
Ti: 0.03 to 0.25% by mass,
An aluminum alloy plate comprising the balance Al and inevitable impurities,
An aluminum alloy plate for a battery case, which has been subjected to artificial aging treatment after forming the case to become a T8 material.

Si: 0.10 to 0.60 mass%,
Fe: 0.05-0.60 mass%,
Cu: more than 0.70 to less than 1.0% by mass,
Mn: 0.10 to 1.80% by mass,
Mg: more than 0.70 to 1.50% by mass,
Zr: more than 0.10 to less than 0.20% by mass,
Ti: 0.03 to 0.25% by mass,
An aluminum alloy plate comprising the balance Al and inevitable impurities,
An aluminum alloy plate for a battery case, which is subjected to artificial aging treatment after case forming by D1 forming, which is deep-drawn in a plurality of stages and ironed in the final process.

Si: 0.10 to 0.60 mass%,
Fe: 0.05-0.60 mass%,
Cu: more than 0.70 to less than 1.0% by mass,
Mn: 0.10 to 1.80% by mass,
Mg: more than 0.70 to 1.50% by mass,
Zr: more than 0.10 to less than 0.20% by mass,
Ti: 0.03 to 0.25% by mass,
An aluminum alloy plate comprising the balance Al and inevitable impurities,
An aluminum alloy plate for a battery case, which is subjected to artificial aging treatment after forming a case of a cold-rolled material that has been finally cold-rolled at a final cold rolling rate of 10 to 60%.

Furthermore, B: 0.02 mass% or less is contained, The aluminum alloy plate for battery cases as described in any one of Claim 9 thru | or 11 characterized by the above-mentioned.

Furthermore, Cr: 0.35 weight% or less is contained, The aluminum alloy plate for battery cases as described in any one of Claim 9 thru | or 12 characterized by the above-mentioned.