| T he halved joint is frequently known as half-lapping, and sometimes as checking and half-checking. In the majority of cases it is made by halving the two pieces, i.e., by cutting half the depth of the wood away. There are, however, exceptions ... Read more of The Halved Joint at Wood Workings.ca |  Informational.caPrivacy |
Steel MakingVanadiumVanadium has a very marked effect upon alloy steels rich in c... Phosphorus Phosphorus is one of the impurities in steel, and it has been... Heat Treatment Of Punches And Dies Shears Taps Etc HEATING.--The degree to which tools of the above classes shou... The Thermo-couple With the application of the thermo-couple, the measurement of... Annealing Work With the exception of several of the higher types of alloy s... The Influence Of Size The size of the piece influences the physical properties obta... Temperature Recording And Regulation Each furnace is equipped with pyrometers, but the reading an... Quenching It is considered good practice to quench alloy steels from th... Machineability Reheating for machine ability was done at 100 deg. less than ... Crankshaft The crankshaft was the most highly stressed part of the entir... Non-shrinking Oil-hardening Steels Certain steels have a very low rate of expansion and contract... Temperatures To Use As soon as the temperature of the steel reaches 100 deg.C. (... Steel Can Be Worked Cold As noted above, steel can be worked cold, as in the case of ... Tungsten Tungsten, as an alloy in steel, has been known and used for a... Detrimental Elements Sulphur and phosphorus are two elements known to be detrimen... Annealing To Relieve Internal Stresses Work quenched from a high temperature and not afterward tempe... Introduction Of Carbon The matter to which these notes are primarily directed is the... Carburizing Low-carbon Sleeves Low-carbon sleeves are carburized and pushed on malleable-ir... Steel Before The 1850's In spite of a rapid increase in the use of machines and the ... Hardening The forgings can be hardened by cooling in still air or quen... |
Pickling The ForgingsCategory: APPLICATION OF LIBERTY ENGINE MATERIALS TO THE AUTOMOTIVE INDUSTRY The forgings were then pickled in a hot solution of either niter cake or sulphuric acid and water at a temperature of 170 deg.F., and using a solution of about 25 per cent. The solution was maintained at a constant point by taking hydrometer readings two or three times a day, maintaining a reading of about 1.175. Sixty forked or one hundred single rods were placed in wooden racks and immersed in a lead-lined vat 30 by 30 by 5 ft. long. The rack was lowered or lifted by means of an air hoist and the rods were allowed to stay in solution from 1/2 to 1 hr., depending on the amount of scale. The rods were then swung and lowered in the rack into running hot water until all trace of the acid was removed. The rod was finally subjected to Brinell test. This shows whether or not the rod has been heat-treated to the proper hardness. If the rods did not read between 241 and 277, they were re-treated until the proper hardness is obtained. Next: Application Of Liberty Engine Materials To The Automotive Industry Previous: Liberty Motor Connecting Rods
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