What are the standards and technical requirements for prestressed plastic corrugated pipes?
What are the standards and technical requirements for prestressed plastic corrugated pipes?1. Meet the transportation industry standard JT/T529--2004.
2. Use original granular raw materials. Do not use powdered and reconstituted granular materials. High-density polyethylene (HDPE) should meet the requirements of GB/T11116, and polypropylene (PP) should meet the requirements of GB/T18742.1. 3. The appearance should be smooth, the color and gloss should be uniform, and the inner and outer walls should not be cracked, blistered, cracked, hard or scratched.
4. The stiffness of the prestressed plastic bellows ring is not less than 6kN/m2.
5. When the prestressed plastic corrugated pipe is subjected to partial lateral load, the surface of the pipe should not be cracked; after unloading for 5 minutes, the residual deformation of the pipe should not exceed 10% of the outer diameter of the pipe. 6. After being repeatedly bent five times in accordance with the prescribed bending method, the special plug gauge can pass through the plastic wave tube smoothly and has the flexibility of plastic corrugated. 7. The allowable value of the vacuum impact rate TIR of the low-temperature weight-reducing impact test of the prestressed plastic bellows is 10%.
What are the prestressed plastic corrugated pipe standards and technical requirements?
What are the precautions for the structure and installation of the prestressed plastic corrugated pipe produced by the prestressed plastic corrugated pipe equipment?
① Operate strictly in accordance with design requirements and standardized construction steps;
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②If the length is not suitable, it should be accurately measured and sawed to a suitable size, and the cut must be smooth to ensure the tightness of the connection;
③First test the part, then fill up the soil for later laying;
④Do not let the pipeline be suspended, and apply cement paint to avoid damage to ensure use;
⑤After installation, the auxiliary positioning parts and related fasteners should be removed as much as possible, and the limit device should be adjusted to ensure the compensation ability.
What are the prestressed plastic corrugated pipe standards and technical requirements?
The plastic pipe extrusion molding technology designed and developed by the company is through the control of the elements of the extrusion process to achieve a molding process with a high degree of product geometry and a high degree of uniformity in the microstructure of the material. The main characteristics of the extrusion molding are: the process in the extrusion process The parameter fluctuation is small, and the working condition of the extrusion equipment is very stable. We are a young enterprise and a team full of vitality, hope and enthusiasm.
