塑料管材优劣的鉴别方法

Methods for identifying qualified or unqualified plastic pipe materials

管材质量有问题大多指管材的强度差,而管材的强度又包括承受内压的强度和抵抗外力冲击的强度。针对PVC-U、PE、PP-R三种不同材质的管材,分别从技术的角度,分析、论述产品质量问题的原因和甄别管材优劣的方法。

The problem with unqualified pipe materials mostly refers to low intensity of pipe materials. Intensity of pipe materials includes those of bearing internal pressure and resisting impulse of outside force. Three kinds of pipe materials of PVC-U,PE,PP-R are examined carefully from technical point of view. Problems associated with quality of pipe materials and methods of identifying qualified or unqualified are discussed.