First, introduce what is a continuous drawing die.
Continuous drawing die is a type of mold mainly used for producing plastic products. Its principle is to continuously stretch plastic strips or sheets to enhance and improve the strength and toughness of items, making it suitable for producing high demand plastic products.
So specifically, what functions can continuous stretching molds achieve?
1. Improvement of plastic elongation performance: Through continuous stretching, the elongation performance of plastic can be improved, making it more suitable for the needs of the product.
2. Improvement of product strength: The stretching process can increase the strength of the product, making it more durable and resistant to stretching.
3. Cost reduction: By stretching, the amount of material used can be reduced, thereby reducing the cost of the product.
4. Easy to form: Continuous stretching molds can also help plastics form more easily during the molding process.
In addition, continuous stretching molds have the following applications:
1. Production of durable plastic products, such as medical devices and automotive components.
2. Production of plastic films such as envelopes and back protective films.
3. Production of single sided adhesive tapes such as pressure sensitive adhesive tapes and ordinary adhesive tapes.
So what factors need to be considered in the production of continuous stretching molds?
1. Mold material: Generally, continuous stretching molds are made of steel or aluminum alloy, which exhibit good mechanical properties and corrosion resistance.
2. Mold design: Mold design needs to consider the compression and deformation of materials during continuous stretching, as well as the thermodynamic changes of the product. Therefore, the design requires rigorous calculation and simulation.
3. Mold surface treatment: The mold surface needs to be polished to reduce friction and prevent oxidation and corrosion.
In the continuous stretching mold processing, there are mainly the following steps:
1. Turning, milling, and grinding: These processes are mainly used to create complex shapes inside the module, ensuring the accuracy of the product.
2. Drilling and welding: Drilling is used to process connection areas, while welding is used to connect different components.
3. Sandblasting and polishing: Although there may be treatment during the continuous stretching process on the production line, further polishing treatment is required on the surface of the mold to ensure production quality.
4. Heating and half axis compression: If the mold is connected, it needs to be heated before compression and welding.
In summary, as an important tool for producing plastic products, the importance of continuous stretching molds cannot be ignored. Only by carefully considering and implementing various factors in the production process can we ensure the production of high-quality continuous stretching molds.
