Injection molding process is a commonly used plastic processing method, which involves heating plastic raw materials to a molten state, injecting them into a mold, cooling and solidifying them to obtain the desired components or products. In injection molding processing, there are five key points that need special attention and analysis, which will be introduced in detail below.
1、 Mold design
Mold is the core tool for injection molding processing, and its design has a direct impact on product quality and production capacity. To ensure the accuracy, stability, and consistency of the product, it is necessary to analyze factors such as product size, structure, and characteristics, and design the functions of mold production, injection, cooling, and positioning in a reasonable manner.
1. Mold extraction: The design of the mold extraction system is crucial to ensure the smooth removal of the product from the mold. It should be noted that the molding system should be designed reasonably and minimize defects such as scratches and deformations to ensure the accuracy and quality of the product.
2. Injection: The injection system is the key to injecting melted plastic raw materials into the mold cavity. It is necessary to select the appropriate number and position of nozzles based on the characteristics of the plastic material, and ensure that the injection process is uniform and stable to avoid defects such as bubbles, short shots, and flow marks.
3. Cooling: The cooling system is an important link in controlling the cooling process of plastic products. To design suitable cooling holes and cooling channels, ensure that the plastic parts are cooled and formed in the appropriate time, and ensure the dimensional stability and minimal deformation of the product.
4. Positioning: The positioning system is the key to ensuring the accuracy of mold fit and stable operation. It is necessary to plan the geometric structure and positioning method of the mold reasonably to prevent errors and gaps between molds, reduce mold wear and damage