How are polypropylene pleated filter elements produced by welding?

The welding production process of polypropylene pleated filter elements is a delicate and critical link, which ensures the structural integrity and filtration performance of the filter element. The following are the general steps for welding production of polypropylene pleated filter elements:

1. Preparation of filter element components

Filter membrane material: Use high-quality polypropylene fiber membrane as the main filter medium of the filter element.

Support layer: Usually use non-woven fabric or wire mesh as the inner and outer support layers of the filter element to enhance the structural strength of the filter element.

Center rod and end cap: Made of polypropylene material compatible with the filter membrane material, it is used to support the filter element and close the two ends of the filter element.

2. Folding and assembly of filter element

Folding: Fold the polypropylene fiber membrane and non-woven fabric or wire mesh support layer into a "V" shape or "W" shape in a predetermined manner to increase the filtration area of ​​the filter element.

Assembly: Sew and assemble the folded filter element assembly around the center rod.

3. Welding process

Hot melt welding: Use Puxiong professional welding machine equipment to hot melt weld the folded joint part of the filter element. This step ensures a firm connection between the various components of the filter element while avoiding the pollution problems that may be caused by the use of adhesives.

Welding quality inspection: After welding is completed, the welding part is quality inspected to ensure that the welding is firm and leak-free.

4. Subsequent processing and testing

Cleaning: Clean the welded filter element to remove impurities and residues that may be generated during the welding process.

Testing: Test the filter element for filtration performance and sealing performance to ensure that it meets the design requirements.

Packaging: Pack the qualified filter element for storage and transportation.

5. Quality control

During the entire production process, the quality of raw materials, welding process parameters and subsequent processing steps need to be strictly controlled to ensure the quality and performance of the final product. In addition, sampling inspection of finished products is required to verify the stability and reliability of the production process.
The welding production process of polypropylene folded filter elements is a complex and delicate process, which requires strict control of the quality and process parameters of each link, such as welding temperature, time, pressure and other precise parameters, to ensure that the quality and performance of the final product meet the design requirements.