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8 Tips To Troubleshoot Injection Mold Failures
Original: | Author: Jasmine HL of DGMF | Publish Time: 2018-04-20 | 11465 Views | Share:
8 Tips to troubleshoot injection mold failures

In order to solve the above problems, a high-strength positioning key is added on each side of the mold parting surface, and the most convenient and effective is to use a cylindrical key. The verticality of the guide hole and the parting surface is very important. During processing, the moving is used. After the fixed mold alignment position is clamped, the boring is completed once on the boring machine. This can ensure the concentricity of the moving and fixed mold holes and minimize the verticality error. In addition, the heat treatment hardness of the guide post and guide sleeve must meet the design requirements.

4. Moving template bending

When the mold is injected, the molten plastic in the mold cavity generates huge backpressure, which is generally 600 ~ 1000 kg / cm2. The mold maker sometimes does not pay attention to this problem, often changes the original design size, or replaces the movable template with a low-strength steel plate. In a mold that uses ejector pins, the template has a large bending span during injection, which causes the template to bend down during injection.