Material selection and preparation: Firstly, based on the design requirements and usage environment of the filter element, select suitable filtering materials such as polypropylene (PP), polyester (PET) and other polymer materials. These materials need to have good chemical stability, corrosion resistance, and mechanical strength. Next, the selected materials are pre treated, such as cleaning, drying, and possible surface modification, to ensure that they meet the requirements for subsequent processing.

Molding and assembly: Using injection molding, ultrasonic welding, or hot melt bonding processes, multiple layers of filter media are precisely molded and assembled together according to design requirements. This step is the key to forming the complex three-dimensional structure of the filter element, and it is also an important link to ensure the filtering effect and flow performance of the filter element. During the assembly process, it may be necessary to add support skeletons or reinforcement structures to improve the compressive strength and stability of the filter element.

Surface treatment: In order to improve the durability and filtration performance of the filter element, special treatment may be required on the surface of the filter element. For example, using nano coating technology, an ultra-thin and dense protective layer is formed on the surface of the filter element to enhance its resistance to pollution and corrosion. In addition, hydrophilic or hydrophobic modification can be carried out as needed to meet the filtration requirements under different water quality conditions.

Performance testing and quality control: After the filter element is manufactured, a series of performance tests are required, including testing of key indicators such as filtration efficiency, flow rate, and pressure loss. These tests aim to verify whether the performance of the filter element meets the design requirements and usage standards. At the same time, strict quality control measures are implemented throughout the entire production process to ensure that each process meets relevant standards and requirements, thereby ensuring the overall quality of the filter element.

Packaging and factory delivery: Filter cartridges that have passed performance testing and quality control will be packaged to prevent damage or contamination during transportation and storage. After packaging is completed, the filter element can be sold at the factory or used in actual water treatment systems.