Why are mesh belt furnaces the preferred choice for large-scale heat treatment

Mesh belt furnaces are the top choice for large-scale screw heat treatment due to their advantages in efficient continuous production, controlled atmosphere processing, uniform workpiece distribution and heating, stable part quality, favorable working conditions, and low energy consumption. Details are as follows:

Efficient Continuous Production

Mesh belt furnaces use intermittently advancing mesh belts to transport workpieces through temperature-controlled heating zones, after which they drop into quenching oil tanks and are automatically retrieved by elevators, enabling continuous heat treatment. This method allows workpieces to be continuously loaded, processed, and unloaded, significantly boosting production efficiency and meeting the demands of large-scale screw manufacturing.

Controlled Atmosphere Processing

Mesh belt furnaces can perform heat treatment processes such as quenching, thin-layer carburizing, and carbonitriding under controlled atmospheres. A controlled atmosphere prevents air from entering the furnace, avoiding oxidation and decarburization of workpieces during heat treatment, thus ensuring surface finish and quality. This is particularly critical for screws requiring high surface quality.

Uniform Workpiece Distribution and Heating

During heat treatment, workpieces in a mesh belt furnace do not collide with each other and are evenly heated as they pass through the furnace chamber. This distribution method ensures uniform heating, preventing issues like deformation and cracking caused by uneven temperatures. Additionally, the furnace’s heating elements are strategically arranged to maintain consistent internal temperatures, further enhancing heat treatment quality.

Stable Part Quality

Due to features like controlled atmospheres and uniform heating, workpieces processed in mesh belt furnaces exhibit stable quality with minimal deformation. This is vital for screws requiring high precision and reliability. Heat treatment in a mesh belt furnace ensures that the mechanical and performance properties of screws meet design specifications.

Favorable Working Conditions and Low Energy Consumption

Mesh belt furnaces operate in relatively clean environments, reducing collisions and damage to parts during heat treatment. They also consume less gas and energy, lowering production costs. For large-scale manufacturing, this significantly improves economic efficiency.