PEX forms a three-dimensional network through chemical or irradiation cross-linking, with a long-term service temperature of up to 95℃.
Cross-linked PE (PEX) is a heat-resistant grade of PE (polyethylene). Cross-linked polyethylene significantly enhances heat resistance and pressure resistance and is the standard material for floor heating pipes and cold and hot water pipes.
PEX forms a three-dimensional network through chemical or irradiation cross-linking, with a long-term service temperature of up to 95℃. It has a good memory effect and does not rebound after installation.
Cross-linked PE (PEX) grades are often used in the following fields and scenarios. Our CNC machining services can provide customized parts for these industries.
Cross-linked PE (PEX) demonstrates the following core advantages in CNC machining and end applications.
The following are the key process points when processing cross-linked PE (PEX) grades to ensure the quality of parts and processing efficiency.
Select sharp single-edge or double-edge carbide tools with large relief angles, positive rake angles, and polished cutting edges. The fiberglass/carbon fiber-filled grades need to be equipped with wear-resistant coated blades.
High-speed, medium-low feed, and small-depth layer-by-layer cutting are carried out. The cutting temperature must be strictly controlled below the material's softening point to prevent melting and tool sticking.
Give priority to compressed air or cold air cooling; Most plastics are not suitable for coolant (as it can easily induce stress cracking), and only atomization lubrication should be used when necessary.
Low clamping force in combination with soft claws or vacuum suction cups prevents deformation and indentation of thin-walled parts. Pay attention to the state adjustment of moisture-absorbing materials (such as nylon) before processing.
The coefficient of thermal expansion of plastics is large, and CMM needs to be measured in a constant temperature environment. Focus on internal stress, surface quality and dimensional stability.
Besides Cross-linked PE (PEX, PE (Polyethylene) offers several other grades with different characteristics. Click to view details.
Send your STEP / DWG / PDF drawing and get a detailed quote with free DFM analysis and process recommendations within 2 hours. No minimum order — from 1 piece.
