Title:
ALUMINUM ALLOY MATERIAL FOR HEAT ROLLER, AND HEAT ROLLER
Document Type and Number:
Japanese Patent JP2005126823
Kind Code:
A
Abstract:
To provide an aluminum alloy material for a heat roller superior in high-temperature strength and workability.
The aluminum alloy material comprises 0.5-2 mass% Mn, 0.05-0.3 mass% Zr, 0.05-0.5 mass% Cu, 0.05-0.6 mass% Si, 0.05-0.7 mass% Fe and the balance Al with impurities; and has such crystal grains with circle equivalent diameters of 200 μm or larger as to occupy 30% or more by area rate in an arbitrary cross section. The aluminum alloy has a chemical composition including, in addition to the above five elements, one or more elements among 0.5 mass% or less Mg, 0.5 mass% or less Cr, 0.3 mass% or less Zn and 0.3 mass% or less Ti.
Inventors:
YOSHIOKA HIROTAKA
IWAI ICHIRO
IWAI ICHIRO
Application Number:
JP2004289675A
Publication Date:
May 19, 2005
Filing Date:
October 01, 2004
Export Citation:
Assignee:
SHOWA DENKO KK
International Classes:
B21C23/08; B21C1/00; C22C21/00; (IPC1-7): C22C21/00; B21C1/00; B21C23/08
Attorney, Agent or Firm:
Hisayoshi Shimizu
Ken Takada
Kurose Yasuhisa
Yoshihito Shimizu
Ken Takada
Kurose Yasuhisa
Yoshihito Shimizu