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 13
... action of too great an amount of heat on the structure of steel , in order that overheating may be avoided . It is also necessary to have a correct understanding of the effects of baths of various kinds on steel , if it is dipped in ...
... action of too great an amount of heat on the structure of steel , in order that overheating may be avoided . It is also necessary to have a correct understanding of the effects of baths of various kinds on steel , if it is dipped in ...
Сторінка 22
... action of the oxygen in the air causes the carbon to be burned out of the steel at the surface during the various operations when the steel is red hot . In order that the decarbonized Decarbonized surface of steel . portion may not give ...
... action of the oxygen in the air causes the carbon to be burned out of the steel at the surface during the various operations when the steel is red hot . In order that the decarbonized Decarbonized surface of steel . portion may not give ...
Сторінка 28
... action of heavy blows , trouble will follow and the steel be condemned . For this reason it is considered advisable to advocate the use of a temper that will give satisfactory results when put to most uses . But the fact remains that ...
... action of heavy blows , trouble will follow and the steel be condemned . For this reason it is considered advisable to advocate the use of a temper that will give satisfactory results when put to most uses . But the fact remains that ...
Сторінка 35
... action of heat and cold than the heavier portions . The steel would expand from the action of the heat , the air striking the projections would cause contraction , and the repeated expansion and contraction would cause the steel to ...
... action of heat and cold than the heavier portions . The steel would expand from the action of the heat , the air striking the projections would cause contraction , and the repeated expansion and contraction would cause the steel to ...
Сторінка 36
... Action of charcoal on steel . fire should be built , as a low fire in a forge having a tuyère - blast inlet of the ordinary size would not be sufficiently large to heat the piece uniformly . It is always advisable when heating large ...
... Action of charcoal on steel . fire should be built , as a low fire in a forge having a tuyère - blast inlet of the ordinary size would not be sufficiently large to heat the piece uniformly . It is always advisable when heating large ...
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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