Tin Can Manufacturing

Tin Can Manufacturing


the production of cans, primarily for preserving and packing food and chemical products.

Tin can manufacturing is based on automated lines able to produce 400 to 500 cans per minute. Tin cans and the lids for them are made from thin rolled steel, the surface of which is covered on both sides with tin (tinplated by hot-dip or electrolytic tinning), from black-lacquered or chromed tinplate, and from tinplate covered with other protective materials allowed by public health agencies for food containers. The surface of the cans is lacquered and lithographed. Cans can be assembled from a body, top, and bottom, or they can be stamped in one piece. Assembled cans have a lengthwise (lock) seam and are fastened together with solder. Cans can be cylindrical (the most common), oval, or rectangular. Rectangular and oval cans are usually stamped on semiautomatic and automatic presses. The bottom and top, called ends, are filled with a compacting paste and hermetically crimped onto the body, which has protruding flanges on its ends, so that upper and lower double-rolled seams are formed in the process.

Automated tin can lines consist of two sections—the end section, for producing bottoms and tops, and the body section, where can bodies are produced. The most common sizes for assembled cylindrical cans in the USSR are (inside diameter to height, in mm) 72.8 x 89.9, 83.4 x 49.4, 99.0 x 31.9, 99.0 x 74.0, and 99.0 x 116.0.


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