The successful development of a new aluminum-plastic composite pipe production line Shandong Qingdao Luhua Plastic Machinery Co., Ltd. has introduced a new one-step butt welding argon-arc welded aluminum-plastic composite pipe production line developed through research and production of foreign advanced production technologies. The production line breaks through some technical blind spots of the ordinary aluminum-plastic composite pipe production line, and can completely replace the imported equipment. After testing by related departments, the technical indicators of the environment-friendly aluminum-plastic composite pipe produced by the equipment all meet industry standards and the market prospect is broad. It is understood that in recent years due to the easy corrosion of the traditional galvanized pipe caused by secondary pollution of water quality, but also because the galvanized pipe production process of hot galvanizing pollution of the atmosphere and water quality, the state banned the production and use of galvanized pipe. This has brought business opportunities to domestic aluminum-plastic composite pipe equipment manufacturers that have been launched in the country. However, the relevant departments have found through investigation of the aluminum-plastic pipe market that the lap welding strength is low, explosive cracking, and the inner wall is not round. The two-step butt welding inside the aluminum plastic pipe Problems such as the easy-to-glue layer of the plastic tube are particularly prominent. In order to completely solve these problems and meet the needs of users, Greenhua has increased its efforts in scientific and technological development. In less than half a year, it has successfully developed an environmentally friendly GY14/63 co-extrusion one-step aluminum-plastic composite pipe production line. The production line adopts a national "863" scientific and technological achievements. The advantages of the two production processes of butt welding and lap welding are integrated and have obvious performance advantages compared with ordinary aluminum-plastic composite pipe production lines. The specific performance is as follows: 1. The internal and external plastic, plastic and aluminum ribbon forming mechanism is composed of a forehearth plate connecting two co-extruder heads; 2. The high-stage extruders complete the inner plastic, outer plastic and hot-melt adhesive extrusion tasks respectively; 3. The inner and outer plastic and internal and external rubber shunting mechanism are designed in the channel board; 4. The production line is greatly shortened, from the usual 50 meters, to 30 meters, reducing the installed capacity and reducing energy consumption; 5. Plastics and hot melt adhesives Summarized in the die and mandrel to realize true co-extrusion; 6. The aluminum-plastic composite pipe produced by the production line can guarantee the free adjustment of the internal and external wall thickness; 7. On-line eddy current testing replaces the root-by-ply watertight test. The detection accuracy increases the yield. The aluminum-plastic composite pipe produced by the production line also has corrosion resistance, high pressure resistance, cold resistance, heat insulation, clean and non-toxic, health and safety, smooth pipe wall, no leakage, and can be widely used in floor water pipelines. Hot and cold drinking water pipelines, gas pipelines, medical oxygen pipelines, solar installations and other fields. Source: Chinalco Information Network
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