The main advantages of construction steel pipe fasteners are.
1. This fastener is harmless.
2. The martensite organization of the hardened layer is fine, and the hardness, strength and toughness are higher.
3. After surface quenching, the surface layer of the workpiece has a greater compressive stress, the workpiece fatigue breaking ability is higher.
4. It is not necessary to overall heating, small deformation of steel pipe fasteners, small power consumption.
5. Heating equipment can be installed in the machining line, easy to realize mechanization and automation, easy to manage, and can reduce transportation, save manpower, improve production efficiency.
6. Heating speed, workpiece surface oxidation decarburization is light.
7. The hardened layer on the surface of steel pipe fasteners can be adjusted according to the needs, easy to control.