| 摘要 |
A method for manufacturing a can body for a two-piece can by multistage forming of a circular laminated steel sheet having a radius of R0 includes the steps of producing a form at least one time by using a laminated steel sheet coated with a polyester resin, which has a plane orientation coefficient of 0.06 or less, in such a way that the height h, the maximum radius r, and the minimum radius d of the form satisfy d<=r, 0.2<=d/R<=0.5, and 1.5<=h/(R-r)<=2.5, where R represents the radius of the laminated steel sheet having a weight equivalent to the weight of a final form; heating the resulting form at least one time at a temperature of 150° C. or higher, and lower than or equal to the melting point of the polyester resin; and working the heat-treated form into a form satisfying d<=r, 0.1<=d/R<=0.25, and 1.5<=h/(R-r)<=4. This method easily produces a can body for a laminated steel sheet two-piece can at a low cost without occurrence of peeling nor breakage of a resin.
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