Cangzhou Guanghui Pipe Industry Co., Ltd.

This three-layer coating system of the anti-corrosion steel pipe manufacturer combines the excellent properties of single-layer epoxy resin and polyethylene coatings, improves the anti-cathode peeling and adhesion strength of the coating system, and meets the maximum operating temperature of ℃ Require. The three-layer structure polyethylene anti-corrosion coating has outstanding mechanical protection and bonding properties. It can withstand the stress caused by soil movement caused by vibration and temperature changes, and can resist the stress caused by sharp stones acting on the pipe surface. impact stress. _The three-layer structure polyethylene anti-corrosion coating has higher resistance, which will greatly reduce the installation and maintenance costs of the cathodic protection system. The current density of cathodic protection of three-layer structure polyethylene anti-corrosion coating pipeline is less than /. These advantages of the three-layer structure polyethylene anti-corrosion coating are enough to make it widely used in countries around the world []. The production process includes pipe feeding and inspection, steel pipe surface cleaning and preheating, steel pipe surface sandblasting and rust removal, rust removal steel pipe quality inspection, steel pipe induction heating, epoxy powder spraying, adhesive extrusion coating, extrusion coating , cooling, pipe end retaining treatment, anti-corrosion coating inspection and marking, pipe discharge
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The raw materials stored in the warehouse for external anti-corrosion raw materials shall be recorded and accepted by the custodian. Different raw materials must be sorted, stacked and marked. The warehouse must be kept clean. Raw materials should be protected from rain, sun, and moisture during storage. The storage conditions should comply with the requirements of the raw material product instructions. All raw materials of the anti-corrosion layer should be stored in a cool and dry place, strictly protected from moisture, direct sunlight, and isolated from fire and heat sources. Materials with storage period requirements should be marked with the date of production and storage and stored in stages. The custodian should notify the person in charge of the material one month before the material expires and clearly mark it.
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The transportation and storage of external anti-corrosion raw materials shall be recorded and accepted by the custodian. Different raw materials must be sorted, stacked and marked. The warehouse must be kept clean. Raw materials should be protected from rain, sun, and moisture during storage. The storage conditions should comply with the requirements of the raw material product instructions. All raw materials of the anti-corrosion layer should be stored in a cool and dry place, strictly protected from moisture, direct sunlight, and isolated from fire and heat sources. Materials with storage period requirements should be marked with the date of production and storage and stored in stages. The custodian should notify the person in charge of the material one month before the material expires and clearly mark it. Special tools such as forklifts must be used. The packaging bag must not be scratched.