Shaft furnaces

 

Shaft furnaces consist of a vertical chamber with loading of metalware from above. Workpieces are placed in a special retort of barrel-type design or muffle and are lowered into the furnace. The casing of shaft furnace is made of heat-resistant metal and is supplemented with a heat insulating material. Heating elements are installed on internal surfaces of the furnace.

Despite of significant height, shaft furnaces provide uniform heating of chamber's internal volume. This is provided by forced circulation of heated air and temperature equalization across the whole volume of furnace chamber.

 

Sikron" produces a wide range of shaft-type furnaces:

  • Shaft furnaces for hardening. These furnaces are intended for heat treatment of metals at temperatures above critical value, in order to make a workpiece extremely durable. Hardening furnaces of shaft type are convenient for work with shaft and for vertical loading of charge.
  • Shaft furnaces for tempering. Tempering furnaces are applied for improvement of plasticity and removal of internal stresses arising at hardening of workpieces. Tempering furnaces of shaft type are intended for heat treatment of products at temperatures of up to 700°С. They provide uniformity of furnace temperature field within ±5°С thanks to application of circulation system in the furnace atmosphere.

 

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