Product Introduction

Spiral protective sleeve is a kind of polypropylene (PP), polyethylene (PE) or nylon (PA) as raw materials, the use of hot state winding shaping extrusion process made of spiral sheath. It is a new product that replaces the traditional metal spring for hose protection. Alias: hose protective sleeve, wire and cable protective sleeve, hose sheath, etc.

Product Features

The spiral protective sleeve was introduced into our country in 2002. Has been widely used in excavators, loaders, road rollers, pavers, forklifts, cranes, dump trucks and other construction machinery and injection molding machine equipment. Mainly installed in the hydraulic hose, wire, cable and other products of the external. Its function is to enhance the wear resistance, anti-static and anti-ultraviolet properties of internal products such as hydraulic hoses, wires, cables, etc., and to protect internal products such as hydraulic hoses in various harsh environments. Hydraulic hose, wire, cable and other products to install spiral protective sleeve can not only improve the appearance, but also can extend the life of the internal products for more than 3 years. Compared with traditional metal reed products, the hose protective sleeve is easy to install and has better wear resistance; it has strong anti-aging and corrosion resistance; it can more effectively prevent the outer surface of hydraulic hoses, wires, cables and other products. Anti-friction protection; it has more excellent, more convenient, more environmentally friendly and energy-saving effects.

Product Performance

The spiral protective sleeve is spiral, with good elasticity and stretching force, and can play a good binding effect on internal products such as hydraulic hose, wire, cable, etc. At present, the raw materials used in China are polypropylene (PP), polyethylene (PE) or nylon (PA), which make the products have good wear resistance. In addition, the spiral protective sleeve also has good high and low temperature resistance, oil resistance, UV resistance, antistatic, impact resistance, tensile resistance and other properties.

Identification of quality

The identification of the quality of the spiral protective sleeve mainly has the following reference standards:
1. The surface of the spiral protective sleeve on the appearance surface is smooth and flat, without shortage of materials, cracks, damage and burrs; No obvious blistering and unevenness; No impurities, motley colors and other phenomena are of high quality. On the contrary, it is inferior and unqualified.
2. The hardness of the spiral protective sleeve with high quality and qualified hardness is generally 85~90 degrees, and the hardness is lower than 85 degrees or higher than 90 degrees, which does not meet the requirements. The hardness is too low to protect and bind the internal products. If the hardness is too high, when used in low temperature environment (such as northeast China and other cold areas), the protective sleeve is prone to brittle fracture, and 1% ~ 5% of the products cannot meet the use requirements, so that the protective effect of the spiral protective sleeve on the internal products is greatly reduced.
3. High and low temperature resistance High quality qualified spiral protective sleeve should have good resistance to high and low temperature performance. Users can be identified by the following methods:
Place the spiral protective sleeve at 80°C for 1 hour, room temperature for 0.5 hours, -40°C for 1 hour, and room temperature for 0.5 hours for 5 consecutive cycles. Observation, if the spiral protective sleeve without cracking, sticking, depression and other phenomena, it is high quality; on the contrary, if the spiral protective sleeve has one of the cracking, deformation, sticking or depression and other phenomena, the protective sleeve is inferior and unqualified.
4. Oil resistance high-quality qualified spiral protective sleeve has good oil resistance. The spiral protective sleeve can be soaked in the mixture of 70# gasoline and 10% toluene for 5 minutes. If there is no discoloration and stickiness, it is of high quality and qualified. On the contrary, if there is discoloration and stickiness, the protective sleeve is of inferior quality and unqualified.
5. Wear resistance The qualified spiral protective sleeve has good wear resistance. This can be tested by the Akron Abrasion Test. As a result of the test, if the quality difference is less than 0.07, it is of high quality; on the contrary, if the quality difference is greater than 0.07, the spiral protective sleeve is of inferior quality and unqualified.
6. tensile strength impact strength
High quality qualified spiral protective sleeve has good tensile strength and impact strength. Tensile strength at room temperature is generally 25 ~ 30Mpa; impact strength is generally: notched, 35KJ/M2 at room temperature,-40 ℃/24h is 5KJ/M, impact strength (no notch): continuous.
7. Anti-ultraviolet
The spiral protective sleeve has good anti-ultraviolet performance. The black spiral protective sleeve is produced by adding a certain ratio of carbon black to enhance the anti-ultraviolet performance of the spiral protective sleeve. This is also the reason why the black spiral protective sleeve has better UV resistance than other color protective sleeves.
8. Antistatic
The spiral protective sleeve is mainly used for the external protection of construction machinery and injection molding machine equipment such as excavators, loaders, road rollers, pavers, forklifts, cranes, pumping machinery, cables, etc. When working in underground and dry environment, spiral protective sleeve with strong antistatic property should be selected. In order to enhance the antistatic performance of internal products such as hydraulic pipe fittings, and play a better role in the safety protection of hydraulic pipes in a variety of harsh environments!