Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . dip into thispowder and afterwards hammer. Composition to Toughen Steel.—Rosin 2I/2 pounds ; tallow 2I4pounds; pitch 114 pounds. Melt together and apply to the steelwhile hot. Pointer. Rosin on the blacksmiths forge improves and toughens the tool is hot, dip it into the rosin, then hammer. To Weld Buggy weld buggy springs first scarf one piece of spring, andthen weld onto it a piece of spring cut off about three-quartersof an inch longer
Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . dip into thispowder and afterwards hammer. Composition to Toughen Steel.—Rosin 2I/2 pounds ; tallow 2I4pounds; pitch 114 pounds. Melt together and apply to the steelwhile hot. Pointer. Rosin on the blacksmiths forge improves and toughens the tool is hot, dip it into the rosin, then hammer. To Weld Buggy weld buggy springs first scarf one piece of spring, andthen weld onto it a piece of spring cut off about three-quartersof an inch longer than the first; heat and upset until one-quarterthicker at end than spring scarf. Now upset the other pieceuntil as near thickness of first piece as possible; scarf and a trifle heavier at weld, and if the work has been doneproperly the weld can be warranted not to break. Use a 4I/2pound hammer in making this weld, and keep at it until finished. FORGING AND WELDING. 185 A French Welding using a flux, as is necessary when welding steel, or^ ironand steel, it is oftentimes difficult to keep the flux in place on. FIG. 128.—1,500-POUND FRICTION ROLL FORGING DROP WITHGEARLESS LIFTER. account of its quickly melting and running off the weld. M. , Paris, France, has devised a flux consisting of a boraxmixture in which is incorporated a fine wire netting to hold it 186 HARDENING, TEMPERING AND ANNEALING.
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Keywords: ., bookcentury1900, bookdecade1900, bookidhardeningtem, bookyear1903
