Types of Industrial Furnace

• Ashing Furnaces
• Calcination Furnaces
• Tempering Furnaces
• Annealing Furnaces
• Tensile Testing Furnaces
• Rotary Tube Furnaces

Ashing Furnaces

• Ashing furnaces are used to determine the amount of ash that forms after a sample is burned. Typical materials used as samples in ashing furnaces are petroleum products, lubricating oils, and coal.
• This process is often used to determine any contaminants in the sample, which are sometimes only present if ash is produced.

Calcination Furnaces

• Calcination furnaces are generally used to prepare raw materials for raw processing or to recover the base material following other processes.
• Calcination is a heat treatment process where samples including minerals or ceramic powders are heated below the melting point to induce phase transition, thermal decomposition, or to remove a volatile fraction.

Tempering Furnaces

• Tempering furnaces are often used after iron-based alloys have been subjected to hardening or quenching, which can cause excess hardness, stress, and brittleness.
• Tempering is the process of heating steel to a specific temperature and then cooling it in still air.

Annealing Furnaces

• Annealing is a heat treatment process that is used to soften a sample for improved cold working, and machinability, and to enhance mechanical and electrical properties.
• Annealing furnaces work by heating up material and maintaining the temperature before cooling at a suitable rate.

Tensile Testing Furnaces

Tensile testing furnaces are used to measure the ultimate tensile strength, yield strength, strain-hardening, and a range of other properties of a material.

Rotary Tube Furnaces

Rotary tube furnaces are circular furnaces that rotate during heat treatment and are often used for continuous materials processing as they can apply heat in multiple thermal control zones.