 Histories.ca - Get a canadian perspective on history, read interesting historic tales, understand Canadian and Scottish History. Visit Histories.ca |  InformationalPrivacy |
Steel MakingHardeningSteel is hardened by quenching from above the upper critical.... Liberty Motor Connecting Rods The requirements for materials for the Liberty motor connecti... Bessemer Process The bessemer process consists of charging molten pig iron int... Heat Treatment Of Steel Heat treatment consists in heating and cooling metal at defin... Carburizing Low-carbon Sleeves Low-carbon sleeves are carburized and pushed on malleable-ir... Hardening Operation Hardening a gear is accomplished as follows: The gear is tak... William Kelly's Air-boiling Process An account of Bessemer's address to the British Association w... Protective Screens For Furnaces Workmen needlessly exposed to the flames, heat and glare from... The Forging Of Steel So much depends upon the forging of steel that this operation... Rate Of Absorption According to Guillet, the absorption of carbon is favored by ... The Theory Of Tempering Steel that has been hardened is generally harder and more br... Using Illuminating Gas The choice of a carburizing furnace depends greatly on the fa... Tungsten Tungsten, as an alloy in steel, has been known and used for a... Restoring Overheated Steel The effect of heat treatment on overheated steel is shown gra... Manganese Manganese adds considerably to the tensile strength of steel,... Separating The Work From The Compound During the pulling of the heat, the pots are dumped upon a ca... Cyanide Bath For Tool Steels All high-carbon tool steels are heated in a cyanide bath. Wi... The Quenching Tank The quenching tank is an important feature of apparatus in c... The Influence Of Size The size of the piece influences the physical properties obta... Molybdenum Molybdenum steels have been made commercially for twenty-five... |
The Care Of Carburizing CompoundsCategory: CASE-HARDENING OR SURFACE-CARBURIZING Of all the opportunities for practicing economy in the heat-treatment department, there is none that offers greater possibilities for profitable returns than the systematic cleaning, blending and reworking of artificial carburizers, or compounds. The question of whether or not it is practical to take up the work depends upon the nature of the output. If the sole product of the hardening department consists of a 1.10 carbon case or harder, requiring a strong highly energized material of deep penetrative power such as that used in the carburizing of ball races, hub-bearings and the like, it would be best to dispose of the used material to some concern whose product requires a case with from 0.70 to 0.90 carbon, but where there is a large variety of work the compound may be so handled that there will be practically no waste. This is accomplished with one of the most widely known artificial carburizers by giving all the compound in the plant three distinct classifications: New, being direct from the maker; half and half, being one part of new and one part first run; and 2 to 1, which consists of two parts of old and one part new. Next: Separating The Work From The Compound Previous: Gas Consumption For Carburizing
Viewed 993 |
||||||||||||||||||||
