Spiral Hose Guard Quality Inspection （2）
Spiral hose guard manufacturers are very many, different manufacturers produce product quality is not the same, the following is to distinguish the quality of spiral hose guard:
1. Wear resistance
The quality qualified spiral hose guard has good wear resistance. The "Akron grinding test" can be used for testing. Test results, if the quality difference is less than 0.07 is high quality, on the contrary, if the quality difference is greater than 0.07, the spiral protective case is inferior, unqualified.
2. Stretching and impact
The quality qualified spiral hose guard has good tensile strength and impact resistance. The tensile strength is generally 25 to 30Mpa at room temperature, and the impact strength is generally: notch, 35KJ/M2 at room temperature, 5KJ/M at room temperature, 5KJ/M at -40C/24h, impact strength (no gap): will not break.
Spiral hose guard is mainly used for excavators, loaders, roller pavers, forklifts, cranes, pumping machinery, cable external protection and other engineering machinery and injection molding machine equipment. When working underground and in a dry environment, consideration should be given to the choice of a spiral protective case with strong electrostatic resistance. To enhance the anti-static performance of internal products such as hydraulic fittings, in a variety of harsh environments to play a better safety protection role in the hydraulic hose.
4. Flame retardant
Recycled raw material spiral hose guard flammable, that is, fire on, and fast burning, the process of falling black drops of melt, the smell is pungent.
The original package ordinary spiral hose sheath fire slow, fire in the process of dripping material without impurities, translucent state.
The original package flame retardant spiral hose sheath does not burn in flames, melts slowly, and flame retardant properties are very high. The flame retardant spiral hose sheath has been tested to meet V0-class flame retardant test standards.