METAL CAN FOR A FOOD PRODUCT

摘要

The invention relates to a metal can (40) for preserving a food product sterilised by heat treatment after closing the can, made up of an integral body forming the bottom (41) and the side wall (43) of the can, and a lid (42) mounted on said body in order to seal the latter, the minimum thickness of the side wall (43) being between 20% and 60% of the thickness of the centre of the bottom (41). According to the invention, the height of the can (40) is between 1.5 and 3.5 times the width thereof, and the bottom (41) and/or the lid (42) of the can has a central wall (411, 421) with an outwardly convex shape, connected to the side wall (43) by a peripheral groove (410) opening up towards the outside.

主权项

1. A method for obtaining an integral body of a metal can for preserving a food product sterilized by heat treatment after closing of the can, the integral body having a bottom and a side wall, the method comprising:
ironing the side wall of the integral body using Drawn and Wall Ironing technology (DWI) which is implemented so that
a minimum thickness of the side wall is between 20% and 60% of a thickness of the center of the bottom, anda height of the body is between 1.5 times and 3.5 times the width thereof, and providing the bottom with a central wall that has an outwardly convex shape connected to the side wall by a peripheral groove opening up outwards.