How to distinguish the quality of PU steel wire hose?

May 04, 2020

PU steel wire hose is a kind of PU steel wire telescopic hose with steel wire inside and transparent PU material. Mainly used in abrasive solids such as dust, powder, fibers, chips and particles, gas and liquid environments, for dust removal and suction-type workshops, industrial vacuum cleaners, paper and textile fibers. The inner wall is smooth to ensure the smooth flow of materials in the tube. It is resistant to mildew and hydrolysis, and the spiral steel wire can discharge static electricity when it is grounded.

Except for a little plastic smell, high-quality PU steel wire hose has no smell of other petrochemical products. Poor PU steel pipe has an unpleasant pungent smell of diesel, especially in the hot summer, people can not get close.

Observe whether there are bubbles or other visible objects on the wall of the steel wire hose, and whether it is colorless and transparent. The wall of the high-quality steel wire hose is crystal clear, without any impurities. The color of the inferior steel wire hose is yellow, which may be caused by decomposition and aging in the production process due to improper handling or long-term improper storage.

Take a few centimeters of steel wire at both ends of the steel wire hose and repeatedly fold the steel wire to check the strength and toughness of the steel wire. Poor quality steel wire will break when folded twice, while the steel wire of high-quality steel hose needs special tools to cut off. The quality of the steel wire determines the quality of the entire pipe. The steel wire hose caused by the quality problem of the steel wire is prone to unrecoverable deformation.

When measuring the wall thickness, the two ends of the PU steel wire hose should be cut off, and the middle tube should be selected as the sample test to prevent the actual wall thickness from being thinner than the two ends of the tube. The inner and outer walls of high-quality steel wire hoses are smooth and feel good, while low-quality pipes are rough.

How to distinguish the quality of PU steel wire hose?

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