The fasteners require not only high strength and wear resistance, but also sufficient toughness and plasticity. Generally speaking, low-carbon steel, medium-carbon steel or medium-carbon alloy steel need to be carburized and quenched to meet the needs of use.

The continuous mesh belt furnace is especially suitable for carburizing and quenching of fasteners with many varieties and large quantities. Due to the atmosphere protection, it can ensure that the surface hardness of the fasteners is uniform, without decarburization and oxidation, and improves the mechanical properties of the fasteners. 

The equipment of this production line is composed of: Magnetic Feeding Machine→Mesh Belt Carburizing Furnace→Oil Quenching Tank→Oil Filter Frame→Cleaning Machine→ Hot Air Circulation Tempering Furnace →Control System, etc.

Adopt the dripping type atmosphere, and the protective atmosphere is used for high-temperature cracking in the furnace, which is simple and reliable to use, and can avoid carbon deposits on the dripping nozzle. The carbon potential is automatically controlled by the oxygen probe and the carbon controller, and the oxygen probe is automatically burned by the protector.