Nitriding treatment of coupling

Nitriding treatment of coupling ：The high-strength drum-shaped gear coupling is made by integrating factors such as the selection of coupling material, the subsequent heat treatment process, and precise manufacturing. Nitriding treatment is used to enhance the surface strength of the gear coupling.

 Precision manufacturing of drum-shaped gear coupling: First, attention should be paid to the selection of coupling material. For example, for heavy-load GICL drum-shaped gear couplings, the material should be selected based on the usage conditions of the user's equipment, whether it is 45# forged steel or 42CRMO forged steel? Even for large-sized gear couplings above GICL23 (outer diameter is 1010), cast steel form can be selected, but the brand of cast steel material and the defects (gas holes, sand holes, etc.) of cast steel must be strictly controlled. After determining the material of the drum-shaped gear coupling, the corresponding heat treatment should be followed to fully exert the inherent strength performance of the coupling material. The heat treatment of drum-shaped gear coupling is not just surface quenching, because surface quenching only increases the hardness of the tooth surface, while the strength and fatigue strength of the main body of the gear coupling and its service life are the key factors. Nitriding treatment can increase the surface hardness of the entire gear coupling, and the hardness is much greater than that of high-frequency surface treatment. However, to achieve the comprehensive effect of a high-strength coupling, corresponding quenching and tempering pre-treatment should be followed before the nitriding treatment, so as to comprehensively improve the strength of the coupling body and the surface strength.