A Complete Guide to Plastic Mold Classification and Maintenance
Next, let's delve into the mysteries of plastic molds, understanding their detailed classifications and effective maintenance methods. Through a comprehensive understanding, we will be able to better utilize plastic molds, extend their service life, and improve production efficiency.
Classification of Plastic Molds
Classification by Molding Process
Next, we will classify plastic molds in detail according to different molding processes. This classification method allows us to more clearly understand the characteristics and application scenarios of various plastic molds, thus providing strong support for selection and use.
Next, we will explore the classification of plastic molds under different molding processes.
First up is injection molding molds, a type of mold widely used in the plastic products industry, such as television casings, keyboard buttons, and electronic product casings. Its core working principle involves injecting molten plastic into the mold cavity; after cooling and solidification, a refined plastic product emerges. Inflation molding molds, on the other hand, are mainly used to manufacture hollow plastic products, such as beverage bottles.
Compression Molding: This type of mold is used to manufacture products such as bakelite switches and scientific ceramic bowls and plates. The process involves placing the plastic raw material into a heated mold cavity, applying pressure to induce a chemical cross-linking reaction, and finally solidifying the material.
Transfer Molding: Primarily used for producing high-precision, miniaturized plastic products, such as integrated circuit products. This mold first softens the plastic raw material in a heated chamber, then precisely transfers it to a closed mold cavity via a plunger, where it solidifies to obtain the final product.
Extrusion Molding: This type of mold is commonly used in the production of products such as glue tubes and plastic bags. Driven by a screw, the plastic raw material is extruded through a die of a specific shape to form a continuous profile. After cooling and solidification, it becomes the product we know.
Thermoforming Mold: This type of mold is indispensable for the manufacture of products such as transparent molded packaging shells. It involves heating a plastic sheet to a softened state, then using vacuum suction, air pressure, or mechanical pressure to adhere the plastic to the surface of a mold cavity, and finally cooling to solidify it.
Rotational Molding: This type of mold is commonly used in the production of soft rubber dolls and other toys. During the mold's rotation, the plastic material is evenly distributed on the inner wall of the mold. After heating and cooling processes, the final product is formed.
