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 46
... charred leather - and subject to heat until the piece has reached the desired uniform temperature , being careful that the part which is exposed to the direct heat of the fire does not get over - heated . Another method which is used ...
... charred leather - and subject to heat until the piece has reached the desired uniform temperature , being careful that the part which is exposed to the direct heat of the fire does not get over - heated . Another method which is used ...
Сторінка 85
... charred leather , instead of wood charcoal . When it is desirable to harden the surface of low carbon steel harder than it would naturally be , it may be machined nearly to size , packed in a box with charred leather and run for a ...
... charred leather , instead of wood charcoal . When it is desirable to harden the surface of low carbon steel harder than it would naturally be , it may be machined nearly to size , packed in a box with charred leather and run for a ...
Сторінка 98
... charred leather ... Fine family flour .. Fine table salt ... 1 lb .. 11⁄2 lbs . 2 lbs . The charcoal made from the charred leather should The hardening of files . be titurated until fine enough 98.
... charred leather ... Fine family flour .. Fine table salt ... 1 lb .. 11⁄2 lbs . 2 lbs . The charcoal made from the charred leather should The hardening of files . be titurated until fine enough 98.
Сторінка 132
... charred leather . to do this , an iron platform may be built on a level with the bottom of the muffle . The heated die may be run out on this and then taken with tongs or grap- pling hook and carried to the bath . Other forms of ...
... charred leather . to do this , an iron platform may be built on a level with the bottom of the muffle . The heated die may be run out on this and then taken with tongs or grap- pling hook and carried to the bath . Other forms of ...
Сторінка 133
... charred leather , place the face of the die on this , as shown in Fig . 54 , then fill the box with leather . Some hardeners use a box large enough to take in the whole die and allow for a cover on top . It is then entirely removed from ...
... charred leather , place the face of the die on this , as shown in Fig . 54 , then fill the box with leather . Some hardeners use a box large enough to take in the whole die and allow for a cover on top . It is then entirely removed from ...
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Загальні терміни та фрази
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