| —Prayer —Faith Although He Died Believing His Mission Had Failed, His Prayer Was More Than Answered. THE LESSON—That "the effectual, fervent prayer of a righteous man availeth much." The life of Christophe... Read more of Christopher Columbus at How to Draw.ca |  InformationalPrivacy |
Steel MakingSeparating The Work From The CompoundDuring the pulling of the heat, the pots are dumped upon a ca... Annealing Work With the exception of several of the higher types of alloy s... Temperature Recording And Regulation Each furnace is equipped with pyrometers, but the reading an... Quenching The Work In some operations case-hardened work is quenched from the bo... Steel Before The 1850's In spite of a rapid increase in the use of machines and the ... Annealing In Bone Steel and cast iron may both be annealed in granulated bone. ... Short Method Of Treatment In the new method, the packed pots are run into the case-har... Standard Analysis The selection of a standard analysis by the manufacturer is t... Heat Treatment Of Gear Blanks This section is based on a paper read before the American Gea... Tempering Round Dies A number of circular dies of carbon tool steel for use in too... Steel Can Be Worked Cold As noted above, steel can be worked cold, as in the case of ... High-chromium Or Rust-proof Steel High-chromium, or what is called stainless steel containing f... Annealing Method Forgings which are too hard to machine are put in pots with ... Oil-hardening Steel Heat slowly and uniformly to 1,450 deg.F. and forge thorough... Effect Of Different Carburizing Material [Illustrations: FIGS. 33 to 37.] Each of these different p... Restoring Overheated Steel The effect of heat treatment on overheated steel is shown gra... Heat Treatment Of Lathe Planer And Similar Tools FIRE.--For these tools a good fire is one made of hard foundr... Properties Of Steel Steels are known by certain tests. Early tests were more or l... Properties Of Alloy Steels The following table shows the percentages of carbon, manganes... Judging The Heat Of Steel While the use of a pyrometer is of course the only way to hav... |
A Satisfactory Luting MixtureCategory: CASE-HARDENING OR SURFACE-CARBURIZING A mixture of fireclay and sand will be found very satisfactory for closing up the boxes, and by observing the appearance of the work when taken out we can gage the suitability of the methods employed, for unless the boxes are carefully sealed the work is generally covered with dark scales, while if properly done the articles will be of a light gray. By observing the above recommendations reliable results can be obtained, and we can expect uniform results after quenching. Next: Gas Consumption For Carburizing Previous: Using Illuminating Gas
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