Terminology for cans

Terminology for cans

Terminology for cans is illustrated in Figure 5.

Body: This is the main component of the box whose shape can vary, consisting of tin, and may be moldings.

Moldings body: Grooves single or in groups on the body to increase the resistance of the box.

Staple: zone joining the two ends of the body of the box.

1. In the case of clip boxes welded to the tin, the clip consists of four thicknesses (folds) strongly folded into one another and welded, except at each end (the pellet) where it is composed of two layers of sheet only.
2. In the case of electro-clip boxes welded the two ends overlap of about 0.5 mm. Once welded, the clip has a thickness of about 1.2 times that of the sheet body.
3. For Cans (two-piece cans), there is no clip. The body and base are composed of a single piece of metal and are formed by stamping.

Edge of the body (or edge of the body): Outer edge of the flared body of the box which should form the hook body of the seam.

Mounting: On the whole circumference, the thickness of the seam consists of five layers of metal (three layers belonging to the lid and two belonging to the body), except at the clip where he has seven layers. This area which has a seam allowance is called "mounting."

Cover: The cover serves to close the container by Seaming it with the body of the box.

Hem of cover: Edge of cover intended to be the hook cover after Seaming. It is on this part of the cover is applied seal.

Seal: Material rubber is applied to the hem of cover that is in contact with the rim of the can body. The seal and crimp the lid on the can body act together to make the seal airtight.

Seam: Item box that forms when the body and seal by Seaming the lid. Each seam is composed of three layers of metal belonging to the lid and two belonging to the body, except at the assembly. The formation of the seam and its structure are described in detail in Title 5 of this document (5. Seaming).