Method for manufacturing laminated steel sheet, apparatus for manufacturing laminated steel sheet, and curable composition used for the same
AssigneeThreebond Co., Ltd.
InventorAi OMURA
Life of this patent
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Abstract
A method is for manufacturing a laminated steel sheet comprising laminated a predetermined number of thin steel sheets formed by punching a belt-shaped thin steel sheet into a predetermined shape. This method includes the following steps 1 to 3: step 1: a step of sequentially punching the thin steel sheet into a predetermined shape with a metallic die; step 2: a step of applying a curable composition to a predetermined portion of the thin steel sheet; and step 3: a step of irradiating the curable composition with energy rays. The curable composition is a delayed curable composition which is cured after a lapse of a predetermined time after being irradiated with energy rays.
Claims7
A method for manufacturing a laminated steel sheet comprising laminated a predetermined number of thin steel sheets formed by punching a belt-shaped thin steel sheet into a predetermined shape,
- the method for manufacturing a laminated steel sheet comprising the following steps 1 to 3:
- step 1:
- a step of sequentially punching the thin steel sheet into a predetermined shape with a metallic die;
- step 2:
- a step of applying a curable composition to a predetermined portion of the thin steel sheet;
- and
- step 3:
- a step of irradiating the curable composition with energy rays,
- wherein the curable composition is a delayed curable composition which is cured after a lapse of a predetermined time after being irradiated with energy rays.
A method for manufacturing a laminated steel sheet comprising laminated a predetermined number of thin steel sheets formed by punching a belt-shaped thin steel sheet into a predetermined shape,
- the method for manufacturing a laminated steel sheet comprising the following steps 1 to 4:
- step 1:
- a step of sequentially punching the thin steel sheet into a predetermined shape with a metallic die;
- step 2:
- a step of applying a curable composition to a predetermined portion of the thin steel sheet;
- step 3:
- a step of irradiating the curable composition with energy rays;
- and
- step 4:
- a step of fixing the laminated thin steel sheets for a predetermined time,
- wherein the curable composition is a curable composition having delayed curability in which a curable composition is cured after a lapse of a predetermined time after being irradiated with energy rays.
Dependencies are inferred from the claim text.