Qingdao Huashida Machinery Co., Ltd. was established in 2003, has more than 22 years of research and development and production experience. The factory covers an area of about 4000 square meters. Is a research and development, manufacturing, sales, service, trade as one of the private high-tech enterprises. There are two main production plants, one is the pipe production line, the other is the pipe plastic joint. We have a technical team of many engineers. There are two testing and control testing laboratories. And obtained more than 30 technical patents, ISO9001 quality certification, ISO140001 environmental certification, SGS, DVGW, CE certification. We always focus on the research and development of plastic extrusion equipment, and cooperate closely with universities and scientific research institutions such as Tsinghua University, Beijing University of Chemical Technology, South China University of Technology. At the same time, by absorbing advanced technology at home and abroad, we have become one of the top plastic extruder manufacturers in China, especially PE insulation sleeve extrusion line, 3PE anticorrosion production line and PE hollow wall spiral pipe production line.
Today we would like to introduce one of our blockbuster products:
The three-layer PE anti-corrosion structure includes fusion bonded epoxy-powder bottom layer, polymer adhesive middle layer and polyethylene top layer. The epoxy powder is a kind of thermo setting nontoxic coating, forming the high molecular weight cross linking structure coating after solidifying ,featuring good chemical anti-corrosion and higher mechanical properties.The function of epoxy-powder bottom layer is to form continuous coating ,providing excellent adhesive by agglutinating and solidifying the steel tube surface with good chemical resistance and cathodic disbanding resistance .The function of polymer adhesive is to agglutinate the epoxy powder before gelation,and to agglutinate the polyethylene top layer ,which unites all three layer together .The three layer PE process ,with the epoxy powder coating as bottom layer, binding and bundling through polyethylene,PE and adhesive ,is widely used in steel pipes anti-corrosion at home and abroad ,and applied to the oil pipeline and gas pipeline ,as well as to the gas supply and water supply for civil use.
