1. Different materials require different temperatures during injection molding. For example, assuming that the temperature is too low, some abnormal conditions will occur on the color of liquid materials; Assuming that the temperature is too high, the product will have burr appearance after the output and exchange, and the quality of production cannot meet the demand.
2. During injection molding, it is necessary to pay attention to control the speed in the pouring channel, assuming that there will be burrs when it is too fast, and it will also cause oversaturation and scorching. Suppose that if it is too slow, there will be signs of shrinkage, as well as slight cracking. Therefore, when pouring, we must pay attention to the control of its processing speed, so that the quality of the products produced meets the requirements.
3. When processing, you need to pay attention to control the cooling time, and the detailed time required also needs to be selected according to the details of the processed product. The processing of the injection mold will have a greater impact on the brightness of the finished product, so it is necessary to pay more attention.
Considerations for injection molding design are as follows:
1. In the preparation design stage, the injection molding processing should first determine what kind of injection parts to be made. At the beginning of accepting the design task, if the customer has simple design drawings, it is necessary to adapt according to the customer's simple drawings, make regular parts drawings, and communicate repeatedly with the customer to determine the drawings.
At the same time, the description and technical requirements, production output, sample shape and scale, surface roughness, volume and quality are indicated. Look through the cases, collect relevant information, organize injection molding design data, molding process, molding equipment, machining and special processing data, and prepare for use.
2. Determine the molding method to determine the use of injection molding and clarify the production quantity.
3. Calculation of plastic injection molding processing design process, such as calculation of working size of concave and convex mold parts; Determination of cavity wall thickness and bottom plate thickness; Mold heating, determination of cooling system.
