1. Choose products from large manufacturers. Stable quality to solve the problems inherent in the fittings themselves. After the fittings arrives at the factory, first check whether there is any change in hardness of the same batch of fittings, and whether the internal hole size and core rod diameter tolerance meet the technical requirements at the time of ordering. Other parameters shall be accepted according to the standard.
2. Adopting advanced equipment and technology to ensure the quality of the core rod after polishing. (Special polishing machine, dedicated person polishing).
3. Control the clearance between the metal fittings and the core rod during assembly.
4. Select appropriate crimping parameters for different batches and manufacturers of fittings and core rods when they arrive at the factory. First, conduct a test to determine the crimping parameters. Destroy 5-8 pcs products to determine the optimal crimping parameters. It is best to segment press fit large tonnage products.
5. Ensure the stability of the crimping machine. Attention should be paid to replacing hydraulic oil and cooling equipment after working for several hours in summer.
