The one-step flow coating PERT insulation pipe production line developed by Qingdao Huashida has been officially recognized as the first-of-its-kind equipment in Shandong Province and holds 6 invention patents among other intellectual property rights. Its key innovations include: the one-step flow coating composite forming process, which effectively addresses issues related to foam thickness detection and specification limitations of PERT pipes; the CAE analysis-based intelligent forming control system that ensures uniform extrusion of multi-layer pipes and achieves data integration; the PERT-specific extruder with enhanced precision due to its large length-to-diameter ratio screw and flexible adjustment structure; the large-diameter runoff coating foaming machine that reduces mixing time and enables automatic flattening; and the digital system for order-production-service integration, which facilitates full-process information intercommunication.
Compared to the traditional two-step method, this production line demonstrates substantial improvements in production efficiency, product quality, energy conservation, and cost reduction. It promotes the intelligent and efficient upgrading of insulation pipe manufacturing and provides a new pathway for technological transformation and green development within the industry.
