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8 Tips To Troubleshoot Injection Mold Failures
Original: | Author: Jasmine HL of DGMF | Publish Time: 2018-04-20 | 11464 Views | Share:
8 Tips to troubleshoot injection mold failures

The main reason for this failure is the poor finish of the taper hole of the gate and the presence of knife marks in the circumferential direction of the inner hole. Secondly, the material is too soft, the small end of the tapered hole is deformed or damaged after a period of use, and the spherical curvature of the nozzle is too small, which causes the gate material to produce a rivet head here. The taper hole of the gate sleeve is difficult to process. Standard parts should be used as much as possible. If you need to process it yourself, you should also make or buy a special reamer. Taper holes need to be ground to Ra0.4 or less. In addition, a gate pulling rod or a gate ejection mechanism must be provided.

3. Movement and fixed mold offset

For large molds, due to the different filling rates in each direction, and due to the weight of the mold during mold loading, shifting of the movable and fixed molds occurs. In these cases, the lateral offset force will be added to the guidepost during the injection. The surface of the guide post will be fuzzed and damaged when the mold is opened. In severe cases, the guidepost will be bent or cut, and the mold cannot even be opened.