With the continuous advancement of material science, double-density spliced EVA Block. as an innovative material, has gradually been widely used in many fields. It combines EVA materials of different densities, and through ingenious splicing technology. it can present different physical properties in the same material, thereby meeting diversified use needs. This article will introduce in detail the material selection, manufacturing process, production process. characteristics and application fields of double-density spliced EVA Block, and combine it with relevant parameter values to provide readers with a true and comprehensive reference.

　　1. Selection of double-density splicing EVA Block materials

　　The material selection of dual-density spliced EVA Block is crucial, as it involves the performance matching and splicing effect of different densities of EVA. Usually, this material is composed of two parts: high-density EVA and low-density EVA. The high-density part provides excellent support and stability, while the low-density part gives the material good elasticity and cushioning properties. When selecting materials, you need to consider the physical properties such as hardness, wear resistance, and impact resistance of the two EVAs, as well as their compatibility and splicing strength.

　　2. Manufacturing process of double-density spliced EVA Block

　　The production process of double-density spliced EVA Block is relatively complex, and it is necessary to ensure that the two parts of EVA can be closely combined while maintaining their respective performance characteristics. The main production process includes raw material preparation, density control, splicing compounding and molding processing.

　　In the raw material preparation stage, high-density and low-density EVA raw materials are prepared respectively, and necessary pretreatment is performed. In the density control stage, EVA preparation of different densities is achieved by adjusting the raw material ratio and process parameters. In the splicing and compounding stage, special splicing technology is used to splice high-density and low-density EVA materials according to design requirements to ensure that the splices are smooth and strong. Finally, through molding processing, the spliced EVA materials are processed into the required shape and size.

　　3. Double density splicing EVA Block production process

　　The production process of double-density spliced EVA Block is as follows:

　　Raw material preparation and density control: Prepare high-density and low-density EVA raw materials respectively, and perform density control to obtain the required density range.

　　Splicing and compounding: Using professional splicing equipment and technology, high-density and low-density EVA materials are spliced according to the preset splicing method to ensure that the splicing joints are smooth and without bubbles.

　　Molding processing: Put the spliced EVA materials into the mold, and perform molding processing through injection molding, calendering and other processes to achieve the predetermined shape and size.

　　Cooling solidification and post-processing: Cool and solidify in the mold to stabilize the EVA material, and perform necessary post-processing, such as trimming, polishing, etc.

　　Inspection and packaging: Conduct quality inspection on the double-density spliced EVA Block to ensure that it meets the design requirements before packaging and warehousing.

　　4. Characteristics of double-density spliced EVA Block

　　Double-density spliced EVA Block has the following significant characteristics:

　　Excellent comprehensive performance: Combining the support of high-density EVA and the elasticity of low-density EVA, it achieves a balance of hardness and elasticity of the material to meet the needs of different usage scenarios.

　　Stable splicing strength: Professional splicing technology is used to ensure that the splicing between high-density and low-density EVA is strong and reliable, and is not prone to separation or cracking.

　　Good wear resistance and impact resistance: Inheriting the excellent wear resistance and impact resistance of EVA materials, it can maintain stable performance during long-term use.

　　Easy to process and form: It can be processed into various shapes and sizes through injection molding, calendering and other processes to meet diverse application needs.

　　5. Application fields of double-density splicing EVA Block

　　Double-density splicing EVA Block has been widely used in many fields due to its unique performance characteristics, including:

　　Sports shoe materials: used in the midsoles and outsoles of sports shoes to provide excellent support and cushioning properties to enhance the sports experience.

　　Fitness equipment: used in the production of yoga mats, fitness mats and other products to provide stable support and comfortable touch.

　　Packaging industry: used as a buffer material for packaging precision instruments and electronic products to effectively prevent vibration and impact during transportation.

　　Automotive industry: used in the production of car seats, steering wheels and other components to improve ride comfort and safety.

　　In summary, dual-density spliced EVA Block, as an innovative material, shows broad application prospects in many fields such as sports shoe materials, fitness equipment, packaging industry and automobile industry. By rationally selecting materials, optimizing production processes and processes, and strictly controlling relevant parameter values, dual-density spliced EVA Block products with stable performance, safety and reliability can be produced, providing strong support for the development of various industries.