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 7
... as tools , parts of machines , and other apparatus . Competition has made it absolutely necessary that every possible means be taken to reduce the cost of an Cheapening cost of production . article without reducing the quality 7.
... as tools , parts of machines , and other apparatus . Competition has made it absolutely necessary that every possible means be taken to reduce the cost of an Cheapening cost of production . article without reducing the quality 7.
Сторінка 14
... means a change in temperature of about 1,000 degrees , and the effect of heat on steel is to expand it , while the opposite effect is accomplished when it is cooled . The more rapidly it is cooled the harder it will be . It is indeed ...
... means a change in temperature of about 1,000 degrees , and the effect of heat on steel is to expand it , while the opposite effect is accomplished when it is cooled . The more rapidly it is cooled the harder it will be . It is indeed ...
Сторінка 19
... means possible to get it out in a satisfactory manner . Does some one ask , where do you meet such men ? The writer is happy to say such men are not the ex- ception . To be sure they are not in the majority , but the number of men who ...
... means possible to get it out in a satisfactory manner . Does some one ask , where do you meet such men ? The writer is happy to say such men are not the ex- ception . To be sure they are not in the majority , but the number of men who ...
Сторінка 20
... means the quantity or percentage of carbon the steel contains . It is low temper , medium , or high , or number or letter so and so , according to the understanding of the marks in each particular mill . The following are considered by ...
... means the quantity or percentage of carbon the steel contains . It is low temper , medium , or high , or number or letter so and so , according to the understanding of the marks in each particular mill . The following are considered by ...
Сторінка 21
... mean- ing of the word " temper " : Very hard . Hard .. Medium . 150 carbon + 100-120 carbon 70-80 carbon In order that the reader may understand some- thing of the significance of the terms used to designate the amount of carbon a piece ...
... mean- ing of the word " temper " : Very hard . Hard .. Medium . 150 carbon + 100-120 carbon 70-80 carbon In order that the reader may understand some- thing of the significance of the terms used to designate the amount of carbon a piece ...
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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