Views:2541 Author:Site Editor Publish Time: 2020-05-12 Origin:Site
In most cases? Without any testing tools and testing conditions? We can roughly identify the quality of PVC steel pipe based on the sense of sight, smell and touch.PVC wire hose
1. Observe whether the lumen is regular? Is the wall thickness uniform? The inner cavity and outer edge of good quality PVC steel wire pipe are standard round? The annular pipe wall is evenly distributed. Take a PVC steel pipe with an inner diameter of 89mm and a wall thickness of 7mm as an example? The thickest part of the poor quality wall can reach 7.5mm? The thinnest part is only 5.5mm? Working under a large pressure? It is easy to unevenly stress the wall Will the PVC steel pipe burst or deform? Affect the normal use.
2. Observe whether there are air bubbles or other visible objects on the wall of PVC steel wire pipe? Whether it is colorless and transparent. The wall of high-quality PVC steel pipe is crystal clear? No impurities. And the color of the inferior PVC steel pipe is yellowed? It may be decomposed or aging due to improper handling in the production process or caused by long-term improper storage.
3. Except for a little plastic smell, high-quality PVC steel wire pipe has no smell of other petrochemical products. And the inferior steel pipe has an unpleasant pungent smell of diesel? Especially in the hot summer? People can't get close.
4. The inner and outer walls of high-quality PVC steel wire pipes are smooth? Good hand feel? And low-quality pipes are rough.
5. When measuring wall thickness? Both ends of PVC steel wire pipe should be cut off? Select the middle pipe as the sample test? To prevent some unscrupulous manufacturers from making fuss on both ends of the pipe? The actual wall thickness is thinner than the pipe ends.
6. Take a few centimeters of steel wire at both ends of the PVC steel wire pipe? Fold the steel wire repeatedly? Test the strength and toughness of the steel wire. Wires of poor quality will break after one or two folds? Wires of high-quality PVC steel pipe need special tools to be cut off. The quality of the steel wire determines the quality of the entire pipe? PVC steel wire pipe caused by quality problems caused by the steel wire is prone to unrecoverable deformation.