How To Identify The Good And Bad Of PVC Steel Hose
How to identify the good and bad of PVC steel hose
In most cases, there are no testing tools and testing conditions. We can roughly identify the quality of the PVC steel wire according to the sense of vision, smell and touch.
1. to observe the rules of the lumen and whether the wall thickness is uniform. The inner and outer edges of the PVC steel pipe with good quality are standard round, and the circular tube wall is evenly distributed. Take the PVC steel wire pipe with inner diameter of 89mm? 7mm thick wall as an example? The mass thickness of the pipe wall can reach 7.5mm? The thinnest part is only 5.5mm? It works at a large pressure. It is easy for the tube wall to be unevenly distributed, resulting in the burst or deformation of the PVC steel pipe, which will affect the normal operation.
2. whether or not there are bubbles or other visible objects in the wall of the PVC steel pipe pipe, and whether it is colorless and transparent. High quality PVC steel tube wall crystal clear? No impurities. And the color of the secondary PVC steel wire is yellowing, which may be caused by improper decomposition, aging, or long term improper storage in the process of production.
3. The high quality PVC steel wire pipe, except a little plastic odor, has no odor of any other petrochemical products. And the shoddy steel pipes smell the scent of the scent of the diesel oil, especially in the hot summer? People can't get close to it.
4, high quality PVC steel tube inside and outside the tube wall are smooth? Good hand? And low quality pipe is more rough.
5, measurement of wall thickness of PVC steel tube ends should be cut off?? selected as sample test tube in the middle part of the illegal manufacturers do? To prevent the pipe ends the actual wall thickness on both ends of the tube?.
6. Intercepting a few centimeters of steel wire at both ends of the PVC steel wire tube? Fold the steel wire repeatedly? Test the strength and toughness of the steel wire. The poor quality of the steel wire folding one or two will break? And high quality PVC steel wire steel wire need special tools to truncate. The quality of the whole tube is determined by the quality of the steel wire. The PVC steel wire pipe caused by the quality of the steel wire is easily deformed.
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