. Electroplating; a treatise for the beginner and for the most experienced electroplater. lating is going on. To secure what is called a , or 12 pennyweights of silver to the dozen knives,they should remain in the bath from iy2 to 2 hours. Whenthe operation has been completed, the knives are taken out,scratchbrushed and buffed with a soft rag wheel and silverrouge, care being taken not to use too much rouge. Bur-nishing gives an extra finish, but it takes too much time forordinary jobs. CHAPTER VIII GOLDPLATING IT WILL NOT be necessary here to describe the processof goldplating a
. Electroplating; a treatise for the beginner and for the most experienced electroplater. lating is going on. To secure what is called a , or 12 pennyweights of silver to the dozen knives,they should remain in the bath from iy2 to 2 hours. Whenthe operation has been completed, the knives are taken out,scratchbrushed and buffed with a soft rag wheel and silverrouge, care being taken not to use too much rouge. Bur-nishing gives an extra finish, but it takes too much time forordinary jobs. CHAPTER VIII GOLDPLATING IT WILL NOT be necessary here to describe the processof goldplating any further than relates to the work of asmall shop or jeweler. Of course the large outfits are en-tirely unsuitable for this work. Rings and other articlesof jewelry, watch cases and the like, may be plated with aplant that occupies no more space than a kitchen an outfit is illustrated in Fig. 52. The electroplatingsupply houses offer an outfit about as follows: Oneenameled iron vessel; 1 large Bunsen cell; 1 gal. of 24 or14-karat gold solution; gold anode; connecting wire;. Fig. 52. Small Goldplating Outfit scratchbrush; hard and soft gold rouge. Polishing mopsone can make for himself. As this sort of work is oftendone in a dwelling or ill-ventilated room, it is desirable touse a battery which does not give off noxious fumes. For goldplating, the goods must be thoroughly cleanedand prepared very much as in the processes for othermetals. It is advisable to copperplate articles of soft metal, 74 GOLDPLATING 75 as in silverplating, but quickening with mercury is unnec-essary. Copper, silver, brass and various alloys used inmaking cheap jewelry usually take a gold deposit with nodifficulty. Aluminum articles should be coppered in a solu-tion of copper sulphate. The better the polish that is giventhe goods before gilding, the better the work will a matt or frosted surface is desired, roughen the surfacewith acid or a frosting brush before gilding. Some jewel-er
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectelectroplating, booky
