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Quenching Furnace

 

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Industrial furnaces are built of several kinds of high temperature (refractory) materials to hold the process material and hold in the heat without breaking down during the several months that they usually run. 
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  • pH Control in Ethylene Quenching
    In the production of olefins, naphtha or natural gas feedstock is steam cracked at high temperatures in a cracking furnace. This sets off a variety of reactions which are brought to a halt by quenching the produced gas mixture with water. The mixture, containing approximately 38 % ethylene
  • Capacitance System Monitors Windshield Glass Thickness
    of failure from stress induced during the quenching process. In order to maintain proper profile and thickness within a glass furnace the extrusion plate spacing must be maintained at a predetermined gap. Unfortunately, due to process changes and temperature swings this gap can fluctuate
  • Tool Steel
    are always heat treated. Because the parts may distort during heat treatment, precision parts should be semifinished, heat treated, then finished. Severe distortion is most likely to occur during liquid quenching, so an alloy should be selected that provides the needed mechanical properties
  • Low-Pressure Carburising Systems: A Review of Current Technology (.pdf)
    . Low-pressure carburising processes are carried out in. vacuum furnaces like the one in Figure 1. Hydrocarbons are used directly as the source of. carbon. Emissions are low in volume and relatively. benign. The oil has been replaced by gas quenching. The parts emerge very clean, bright and dry
  • SteeLog(R) - A Metallurgical Dictionary
    to harden fully during cooling in air or other gaseous mediums from a temperature above its transformation range. Such steels attain their martensitic structure without going through the quenching process. Additions of chromium, nickel, molybdenum and manganese are effective toward this end. The term
  • Technical Specifications of Carbon and Alloy Steels (JIS)
    . The following symbol SNCM420(H) is an example of JIS. Quenching Method. CarbonC. 00.10.20.30.40.5. code system of corbon tool steel and alloy steel: Carburizing Quenching. S NCM 4 20 H. Additional symbol. Furnace Hardening. Represents the value of the carbon content. Code no. of the major alloy
  • Performance Characteristics of a Newly Developed Ni-Mo Sinter-hardened PM Steel
    slower cooling rate (compared to oil quenching), achieves. sufficient system hardenability to produce the desired microstructure, i.e. predominantly martensite,. hence the required level of hardness and mechanical properties. During the last two or three years however, the global market for alloying
  • Alloy Steel
    psi to nearly 300,000 psi. Subdivisions for most steels in this family include "through-hardenable" and "carburizing" grades (plus several specialty grades such as nitriding steels). Through-hardening grades -- which are heat treated by quenching and tempering -- are used when maximum hardness

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