Performance and points of attention of plastic bellows
Plastic corrugated pipe is a new type of drainage plastic pipe with corrugated shape, which is extruded from high density polyethylene at one time. In addition to all the characteristics of ordinary plastic pipes, such as good corrosion resistance, high insulation, smooth inner walls, and low flow resistance, it also has a ring-shaped steel and good strength and toughness and weight because of its special hollow ring structure Light, strong impact resistance, not easy to break and so on.
Plastic bellows are mainly used in municipal engineering, underground buried rainwater in residential quarters, sewage discharge, irrigation and water conveyance of farmland irrigation, drainage, and so on.
Plastic bellows have the characteristics of light weight, strong pressure resistance, excellent bending performance and easy construction. It is suitable for drainage areas such as green belts, sports fields and slope protection caused by high water content.
Compared with other drainage materials, plastic corrugated pipes have the advantages of strong corrosion resistance, strong water permeability and high cost performance.
There are two types of plastic bellows. One is completely airtight and watertight, such as for propellant conveyance of carrier rockets, gas, water heaters; the other is continuous winding with tape. The common coiled bellows are used for Protect cables, such as magnetic card telephones and machine tools, while corrugated tubes for table lamps are sandwiched with steel wires during production.
PA nylon hose (PA), made of imported modified raw materials, is a high-tech product of corrugated pipe type, high toughness, high impact resistance, good bending performance, high temperature resistance, bright surface, friction resistance, chemical resistance, resistance Flammability, electrical insulation> 200MΩ, halogen-free and environmentally friendly flame retardant, widely used in automotive wiring harness, electronics, mechanical wiring harness and other fields.
Temperature range: -40 ℃ ～ 140 ℃; short time 205 ℃
Main applications; instrumentation, control cabinet, equipment manufacturing, engineering installation, train, automobile, subway, machine tool machinery, automation control and other industries;
Points to note:
1. Various specifications of pipes are flame retardant and non-flame retardant;
2, the pipe is divided into open and closed;
3. There are special requirements for tube color, length and packaging, which can be negotiated between the supplier and the buyer;
4. All pipe specifications, inner diameter, outer diameter are in millimeters.
According to the structure of plastic bellows, bellows can be divided into single-wall bellows and double-wall bellows. Single-wall plastic corrugated pipe refers to a pipe with corrugations on the inner and outer walls of the plastic pipe. It has high rigidity, can be bent arbitrarily, and is packaged indefinitely. Double-wall corrugated pipes mean that the inner wall is smooth and the outer wall is corrugated. Right-angled, trapezoidal, sinusoidal, etc.) plastic pipes are formed by sintering and extruding the corrugated outer wall and a smooth inner wall at the same time. In addition to all the characteristics of ordinary plastics, such as good corrosion resistance, high insulation, smooth inner walls, and low flow resistance, it uses special hollow ring stiffness and good strength and toughness. Under the same strength and rigidity requirements, the use of double-wall corrugated pipes can save materials by 30% -50% compared with ordinary plastic pipes. The technology is economical and easy to transport and install, which reduces the labor intensity of the construction personnel and also reduces the labor intensity. The total investment in the project, but the degree of deflection is small.
Application of bellows: Single-wall bellows can be widely used for drainage and water permeability under light loads such as golf courses and sports fields; interior decoration wire sleeves; automotive wire sleeves; prestressed anchor cable sleeves; air conditioner drainage pipes, etc. . Double-wall corrugated pipes can be widely used in highways, slopes, golf courses and other heavy-load conditions for drainage and water permeability; municipal sewage; telecommunications, power supply cable bushings and other occasions.
As a new type of pore-forming material, plastic bellows has achieved rapid development. It is believed that in the future, the development of the bellows industry will usher in a new development milestone.