Diaphragm coupling mother body manufacturing.The choice of the matrix material of the diaphragm coupling is very important. Generally, the 45# or 40CR forging material should be selected and the rough machining should be carried out after the normalizing treatment. After the rough machining, the quenching and tempering treatment should be carried out to form the overall machine of the coupling material. The performance reaches its performance state. After quenching and tempering, the finishing process is performed, and the mechanical dynamic balance test is required after finishing. The important diaphragm coupling must be nitridated to ensure the transmission strength of the coupling matrix.

　　However, because the difference of diaphragm materials directly affects the performance, service life and cost of diaphragm couplings (frequently changing diaphragms), and the price of diaphragm materials is very different, there are equivalent diaphragm couplings on the market It is made of low-cost materials.

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