Classification of heat treatment furnaces

The main equipment of heat treatment is the necessary device to complete the heat treatment process, and this kind of equipment plays a decisive role in the heat treatment effect and product quality, among which the heating equipment is the most important. Heating equipment includes various resistance furnaces, bath furnaces, fuel furnaces, controlled atmosphere furnaces, vacuum furnaces, etc., which are important equipment for heat treatment workshops. In order to facilitate the selection and use of analysis and comparison, it is often classified according to the following methods.

① Classification by heat source: resistance furnace, fuel furnace.

② Classification by working temperature: low temperature furnace (＜650℃), medium temperature furnace (≥ 650-1000℃), high temperature furnace (≥1000℃).

③ Classification by furnace medium: air furnace, bath furnace, controlled atmosphere furnace, flow particle furnace, vacuum furnace, ion carburizing furnace.

④ Classification by furnace type: box type furnace, pit type furnace, trolley type furnace, push-rod type furnace, rotary bottom type furnace, vibrating bottom type furnace, conveyor type furnace.

⑤ Classification by process use: normalizing furnace, annealing furnace, quenching furnace, tempering furnace, carburizing furnace, nitriding furnace, carbonitriding furnace.

⑥ Classified by operation rules: periodic operation furnace, semi-continuous operation furnace, continuous operation furnace.

With the development of other related technologies and the continuous improvement of the quality requirements for heat treatment products, new heat treatment equipment continues to appear, and the development of heat treatment equipment in recent years is basically to save energy, improve product quality, improve labor intensity and eliminate public hazards. With the improvement of the degree of specialization, the proportion of automatic production lines of various continuous heating equipment is increasing.