After summarising the test requirements of Grade K tinplate, possible production methodsfor meeting them are outlined. Grade K tinplate, made by a method in which a thin layer of tin is deposited on the steel base during the final cleaning process before tinning, has been compared with tinplate of normal production. Large increases in shelf-life to failure by hydrogen swell were found for the special quality material, for plain cans of plums, pears and mackerel. Steels with phosphorus content 0·02–0·03% and tinned by the special process gave results better than those given by steels of phosphorus content below 0·02% and tinned normally.
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References
1.
KammG. G., WilleyA. R., BeeseR. E., & KricklJ. L., Corrosion, 1961, 17, 84t
2.
HotchnerS. J., & PooleC. J., Proc. Fifth Congr. on Canned Foods, Vienna, 1967, Comité International Permanent de la Conserve, Paris, p. 151
3.
WilleyA. R., KricklJ. L., & HartwellR. R., Corrosion, 1956, 12, 433t
4.
McKirahanR. D., ConnellJ. C., & HotchnerS. J., Food Technol., April 1959, 13, 228
5.
KammG. G., WilleyA. R., & BeeseR. E., Mater. Prot., December 1964, 3, 70
6.
U.S. Patent 3,433, 720(Youngstown Sheet & Tube Co.)
7.
BeardL. R., GabeD. R., & WarnerL. M., Trans. Inst. Metal Finish., 1971, 49, 63; British Patent 1,172,859 (Steel Company of Wales); French Patent 1,566,696 (British Steel Corporation)
8.
PatentFrench1,500,185; British Patent 1,185,527 and U.S. Patent 3,620,934 (Centre de Recherches du Fer Blanc)
9.
U.S. Patents 3,445,351 & 3,260,580(American Can Co.)
10.
Castell-EvansJ V.., Trans. Inst. Metal Finish., 1969, 47, 71
11.
U.S. Patent 3,075,897(U.S. Steeel oCrporation)
12.
U.S. Patent 3,087,871(American Can Co.)
13.
U.S. Patent 3,285,838(Jones & Laughlin Steel Co.)
14.
HartwellR. R., ‘Surface Treatment of Metals’, 1941, p. 69 (Cleveland: American Society for Metals)
