Environmentally friendly portable plastic extrusion welding machine has passed expert appraisal

Recently, an eco-friendly, portable plastic extrusion welding machine has been developed and is now widely used for repairing large-diameter plastic pipes, on-site construction of pipe elbows, cathodes, public waterproofing projects, sewage pools, waterproof boards, and engineering plastic sheets. This innovative welding machine was recently appraised by experts at Qingdao Huashida Machinery Co., Ltd. and has since entered mass production. According to industry experts, the portable plastic extrusion welding machine, independently developed by Qingdao Huashida, is compact and lightweight—weighing only 4 kg—which makes it highly convenient for field use. It is especially ideal for on-site construction work and is not affected by weather conditions or seasonal changes. The device offers high welding strength, excellent sealing performance, wide weld seams, a large extrusion output, and quick forming in a single step. Many of its economic and technical indicators are leading in the domestic market. The welding process involves using hot air to preheat the surface of the base material to the required welding temperature, enhancing the softening and fluidity of the material. At the same time, the plastic welding rod is automatically fed into the screw via a feeder, uniformly heated, re-plasticized through screw stirring, and then extruded. It is forced onto the pre-heated surface or groove of the base material, where the melted plastic fills the weld area and re-synthesizes, creating a strong bond. As a result, the mechanical strength of the welded joint is nearly equivalent to that of the original material. This welding machine is widely favored by users due to its ability to bond with the base metal, its corrosion resistance, non-polluting nature, and long service life. Its reliability and efficiency have made it a popular choice in various engineering applications, proving to be both practical and sustainable.

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