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Materials Handbook 15th ed - G. Brady_ H. Clauser_ J. Vaccari (McGraw-Hill_ 2002) Episode 13

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Tham khảo tài liệu 'materials handbook 15th ed - g. brady_ h. clauser_ j. vaccari (mcgraw-hill_ 2002) episode 13', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 960 TINPLATE LT-125 is a water-soluble organo-trialkyl-tin used as a bacteriocide in paper and textile processing. It can be used over a wide pH range. TINPLATE. Soft-steel plate containing a thin coating of pure tin on both sides. A large proportion of the tinplate used goes into the manufacture of food containers because of its resistance to the action of vegetable acids and its nonpoisonous character. It solders easily and also is easier to work in dies than terneplate so that it is preferred over terneplate for making toys and other cheap articles in spite of a higher cost. Commercial tinplate comes in boxes of 112 sheets 14 by 20 in 0.36 by 0.51 m and is designated by the net weight per box when below 100 lb 45 kg . Heavy tinplate above 100 lb 45 kg goes by number as steel does or by letter symbols. The weight of tin may be as high as 1.7 of the total weight of the sheet. Coke plates carry as little tin as is necessary to protect and brighten the plate for temporary use. The tin of the coat forms compounds of FeSn2 Fe2Sn and FeSn with the iron of the plate and on a coke plate this compound is 0.00006 to 0.00015 in 0.00015 to 0.00038 cm thick. Best cokes carry more tin than do the standard cokes. Charcoal plates have heavier coats of tin designated by the letter A. The AAAAAA or 6A has the heaviest coating. Tinplate is made by the hot-dip process using palm oil as a flux or by a continuous electroplating process. A base box contains 31 360 in2 20 m2 of tinplate and standard-dip tinplate has 1.5 lb 0.7 kg of tin per base box while electrolytic plate has only 0.25 lb 0.1 kg of tin per base box and much electrolytic tinplate for container use has only 0.10 lb 0.05 kg of tin per base box. Electrotinning gives intimately adherent coatings of any desired thickness and the plate may have a serviceable coat as thin as 0.00003 in 0.00008 cm or about one-third that of the thinnest possible dipped plate. A slight cold rolling of electrolytic tinplate gives a bright smooth