Forno a camera, isolamento metallico - HTK

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The HTK range of Carbolite Gero high temperature furnaces consists of metallic furnaces made of Molybdenum and Tungsten.

The rectangular design with a front door allows for easy loading and unloading. The HTK range is available in three different sizes. The smallest designs with a capacity of 8 litres and 25 litres are typically employed by laboratories for research and development. The 80 litre furnaces are predominantly used as pilot manufacturing systems or large scale production.

The metallic furnaces constructed of tungsten (HTK W) or molybdenum (HTK MO) permit the greatest possible purity of inert atmosphere and final vacuum level in the high vacuum region (5 x 10-6 mbar). Upon request, an ultra-high vacuum can be configured. Common gases that are typically used include: Nitrogen, Argon, Hydrogen or mixtures.

The heating elements are made from the same metallic material as the insulation. The heating insulation is constructed of several radiation shields constructed from tungsten or molybdenum with respect to the furnace type selected. A retort can be utilized for gas flow guidance or to improve the temperature uniformity. The maximum temperature for the HTK W is 2200 °C and 1600 °C in the HTK MO.

Esempi applicativi

carbon free atmosphere, metal injection molding (MIM), metallization, sintering

caratteristiche standard

  • Metallic furnaces provide a precisely defined atmosphere with the highest possible purity (6 N or better)
  • Metallic furnaces offer the best possible vacuum
  • Hydrogen partial pressure operation if requested
  • Precisely controlled vacuum pumping speeds appropriate for powders
  • Data recording for quality management

Dettagli Tecnici


View inside of the HTK
  1. frame
  2. water cooled vessel
  3. heating cassette
  4. groove for the sealing
  5. front door
  6. insulation

Inside the chamber, heating elements are positioned at the bottom, left, right, and top sides of the furnace chamber allowing for improved temperature uniformity. For larger volumes, the back wall and front are equipped with heating elements to maintain excellent temperature uniformity. The HTK W, HTK MO, HTK GR and HTK KE furnaces are surrounded by a water cooled vessel; thus classifying, the HTK systems as a cold wall furnace. The cooling water is guided through the double walled vessel.

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