Glossary

You will find brief explanations on important technical terms from the area of high-temperature technology in our glossary.

A C E H M P R S T V
  • Shrinkage

    Shrinkage means the reduction of volume of a material or workpieces. It happens when drying or cooling off, as well as during sintering/firing processes without application of pressure.

  • Spalling on the heating elements

    Spalling often occurs in reducing atmospheres. This is caused by the fact that the heating elements cannot form a new protective SiO2 layer. You have two solutions, if you notice that phenomena:

    • 1) A regeneration firing in oxidizing atmosphere at temperature of 1450°C for several hours without a product inside the furnace;
    • 2) You will use an element with a thicker protective SiO2
     

    We would be glad to advise you on both solutions.

  • Surface load

    One of the most important indices for dimensioning electric heating elements is the surface load or area-related performance. The surface load is indicated in Watt per cm2. It measures stress and service life of a heating element.