"Polyamide," or PA tube, is Nylon tube. Is a synthetic fiber, with good physical and chemical properties and mechanical properties: wear resistance, can be used under the conditions of sand, stone, iron; Smooth surface, reduce the resistance, can prevent rust and scale deposition; Soft, easy to bend, easy to install and easy to process. At the same time, it is steel. When a certain shape is needed, it can be made into various shapes like metal pipes, and no complicated equipment and tools are needed. Resistant to corrosion of many chemicals; Stable size and small permeability; Great resistance, can be used as an insulator; Long service life, even decades; Good temperature resistance, can work at -40-100°C.

Nylon is scientists Carothers (Carothers) and under the leadership of a team developed, Nylon (Nylon), English name polyamide (PA), is on the main chain molecules containing the repeated amide gene - [NHCO] - the thermoplastic resin. Including aliphatic PA, fat is a good aromatic aromatic PA PA. Among them, the aliphatic PA varieties, high yield, wide application, its name by the synthesis of monomer on the specific number of carbon atoms.

Nylon has many characteristics, so it is widely used in automobile, electrical equipment, machinery, transportation equipment, textile, papermaking machinery and other fields. With the miniaturization of automobiles, the high performance of electronic and electrical equipment and the acceleration of the lightweight mechanical equipment, the demand for nylon will be higher and greater. Especially, nylon, as a structural material, puts forward high requirements on its strength, heat resistance, cold resistance and other aspects.

The inherent disadvantages of nylon are also an important factor limiting its application, especially for PA6 and PA66 varieties, which have a strong price advantage over PA46 and PAl2 varieties, although some properties cannot meet the development requirements of relevant industries. Therefore, it is necessary to expand the application field by modifying and improving its performance. Due to the characteristics of strong polarity, PA has strong hygroscopicity and poor dimensional stability, which can be improved by modification. Nylon tube is made of various specifications of extruded nylon material of different grades and hard thick-walled nylon tube made of caprolactam material.

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