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 36
... steels are packed in a tube or box with a good quality of charcoal , away from the action of the fire and air , and run for a considerable length of time . Carbon will then be absorbed by the steel . Before the process of making crucible ...
... steels are packed in a tube or box with a good quality of charcoal , away from the action of the fire and air , and run for a considerable length of time . Carbon will then be absorbed by the steel . Before the process of making crucible ...
Сторінка 46
... steel . Among the substances used are lead , tin , glass , cyanide of potassium , a mixture of salt and cyanide of potassium . Lead is heated in a crucible in a furnace of the forms shown in Figs . 15 , 16. It furnishes a very excel- OF ...
... steel . Among the substances used are lead , tin , glass , cyanide of potassium , a mixture of salt and cyanide of potassium . Lead is heated in a crucible in a furnace of the forms shown in Figs . 15 , 16. It furnishes a very excel- OF ...
Сторінка 47
... crucible of lead . Furnaces burning illuminating gas can be pro- cured of a size and shape adapted to the work to be done . If , however , it is considered advisable to make a furnace for this purpose , one may be made which Heating in ...
... crucible of lead . Furnaces burning illuminating gas can be pro- cured of a size and shape adapted to the work to be done . If , however , it is considered advisable to make a furnace for this purpose , one may be made which Heating in ...
Сторінка 49
... CRUCIBLE FRAME B ASH BOX FIRE BOX PIECE OF FIRE BRICK BOTTOM PLATE SECTION 4 LEGS 1 ROUND IRON Figure 17. Coal , coke or charcoal furnace for lead heating . OUTER SHELL " Home - made " lead heating apparatus . used 49.
... CRUCIBLE FRAME B ASH BOX FIRE BOX PIECE OF FIRE BRICK BOTTOM PLATE SECTION 4 LEGS 1 ROUND IRON Figure 17. Coal , coke or charcoal furnace for lead heating . OUTER SHELL " Home - made " lead heating apparatus . used 49.
Сторінка 50
... Steel Edward Russell Markham. " Home - made " lead heating apparatus . used ... crucible to be used . This plate should be cast in two pieces , having more ... crucible from tipping over when the front plate is removed , when there is not ...
... Steel Edward Russell Markham. " Home - made " lead heating apparatus . used ... crucible to be used . This plate should be cast in two pieces , having more ... crucible from tipping over when the front plate is removed , when there is not ...
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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