Model making; including workshop practice, design and construction of models, a practical treatise for the amateur and professional mechanic .. (1919)
Yates, Raymond F. (Raymond Francis), 1895- ed · New York, The Norman W. Henley Pub. Co. · leaf 76
o fault of the solder he is using and,nine times out of ten, it is the method of applying it. 72 Soft and Hard Soldering 73 Before solder is applied to a metallic surface, thesurface should first be scraped perfectly clean with asmall tool that can be easily ground into shape from anold file.… … Fig. 48—A simple alcohol torch for soldering to apply the solder, as long standing will produce a thinfilm of oxide, to which solder does not readily adhere.Once the surface is cleaned, it should not be touched withthe fingers, as this always leaves grease upon the sur-face no matter how clean the…
Machinery
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