What is the production process of PEVA rubber and plastic card code? What special foaming technology or processing methods are used to ensure its unique performance?
Publish Time: 2024-05-20
The production process of PEVA rubber and plastic card code mainly includes the following steps, in which special foaming technology and processing methods are used to ensure its unique performance:Raw material preparation: PEVA (polyethylene-vinyl acetate copolymer) is used as the main raw material, and various high-quality auxiliary materials are added. The selection and proportion of these materials are crucial to the performance of the product.High-temperature mixing: The raw materials are treated with high-temperature mixing. This process can fully mix and evenly distribute the ingredients in the raw materials to prepare for subsequent processing.Rolling into sheets: The raw materials after high-temperature mixing are rolled into sheets. This process can ensure the uniformity and stability of the raw materials.High-temperature foaming: The sheet raw materials are foamed under high temperature conditions. This is a key step in the production of PEVA rubber and plastic card codes. By controlling the parameters such as foaming temperature, time and pressure, PEVA rubber and plastic materials with delicate independent bubble structures can be formed. This structure makes PEVA rubber and plastic card codes have excellent thermal insulation properties, load-bearing capacity and environmental protection.Molding processing: The foamed PEVA rubber and plastic materials are molded to make PEVA rubber and plastic card codes with specific shapes and sizes. In this process, the support code interface will adopt a concave-convex structure and a layer of flexible and elastic material to effectively prevent the convection of hot and cold air.Special foaming technologies mainly include:Closed-cell foaming technology: This technology can ensure that the bubbles in the PEVA rubber and plastic material are closed, avoiding the circulation of air and heat transfer, thereby improving the thermal insulation performance of the product.Uniform foaming technology: By controlling parameters such as temperature, time and pressure during the foaming process, the bubbles are evenly distributed in the PEVA rubber and plastic material, avoiding the concentration or loss of bubbles, and ensuring the stability and durability of the product.In addition, other special processing methods may be used in the production process of PEVA rubber and plastic card codes, such as surface treatment technology, enhancement technology, etc., to further improve the performance and service life of the product. These special foaming technologies and processing methods jointly ensure that PEVA rubber and plastic card codes have excellent thermal insulation, load-bearing, environmental protection and other properties.
