The American Steel Worker: A Twenty-five Years' Experience in the Selection, Annealing, Working, Hardening and Tempering of Various Kinds and Grades of SteelDerry-Collard Company, 1906 - 333 стор. |
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Сторінка 15
... excellent results . But they do not know the difference between a steel of 3/4 per cent . carbon and one of 11⁄2 per cent ; in fact , they do not know anything about percentages of carbon , and don't care ; they say so in as many words ...
... excellent results . But they do not know the difference between a steel of 3/4 per cent . carbon and one of 11⁄2 per cent ; in fact , they do not know anything about percentages of carbon , and don't care ; they say so in as many words ...
Сторінка 27
... excellent results with a certain brand because he has methods of hardening particularly fitted to that brand of steel ; but it may be true that were he to change his methods to adapt them to another steel , much better results would ...
... excellent results with a certain brand because he has methods of hardening particularly fitted to that brand of steel ; but it may be true that were he to change his methods to adapt them to another steel , much better results would ...
Сторінка 30
... excellent results by taking the steel as it came from the bar , or after it was roughed out for annealing , or even after it was forged in the smith's shop , by heating it to a forging heat . Then , standing it on end on the anvil , or ...
... excellent results by taking the steel as it came from the bar , or after it was roughed out for annealing , or even after it was forged in the smith's shop , by heating it to a forging heat . Then , standing it on end on the anvil , or ...
Сторінка 39
... excellent work . If it is desirable to build a muffle furnace , one may be made to use either charcoal , coke , or hard coal as fuel by taking the one represented in Fig . 7 as a model , and changing the design to meet the require ...
... excellent work . If it is desirable to build a muffle furnace , one may be made to use either charcoal , coke , or hard coal as fuel by taking the one represented in Fig . 7 as a model , and changing the design to meet the require ...
Сторінка 53
... excellent results by its use . Where furnaces should be located . remarks apply to this. Figures 19-20 . A " home - made " cyanide heating furnace . nide of potas- hangs from the flange , which is cast around the upper edge . The top of ...
... excellent results by its use . Where furnaces should be located . remarks apply to this. Figures 19-20 . A " home - made " cyanide heating furnace . nide of potas- hangs from the flange , which is cast around the upper edge . The top of ...
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allow annealing best results bottom brittle cast iron cent charcoal charred leather cold considered advisable cool counterbores crucible steel containing cutting tools cyanide Derry Collard Derry Collard Co dipped draw the temper drills excellent results Figure fire forging furnace gauges give grain grinding hammer hard hardened steel hardening box high carbon steel high speed steels hole hotter inch kettle lathe tool lead linseed oil machinery steel mandrels manner method milling cutters milling machine cutters mixture necessary to harden open hearth steel ordinary pack hardening packing material percentage of carbon phosphorus piece of steel pipe placed plate plunged portion possible proper punch punch press quenched raw bone reamer red heat refining heat removed screw screw threading shape shown in Fig similar tools soft spring surface tank taps teeth temper color temperature tion tongs tool steel uniform heat wire writer