塑料类管材应用于住宅热介质管道的若干问题

塑料类管材正在住宅和其他建筑中得到越来越广泛的应用。其中，仅有一部分管材适用于输送热介质。塑料类管材与钢管等金属管道相比，其力学特性有较大的区别。阐明塑料类管材的物理力学特性，比较了各种塑料管材的特点，指出了塑料管材选择应用中应注意的问题。

Several Problems of the Application of the Plastic Tubular Products in the Hot Medium Pipelines of the Dwelling House

The plastic tubular products have been widely used in the dwelling house and other buildings, only part of them are suitable to transfer the hot medium. Compared with the steel and other metal pipelines, the plastic tubular product has bigger distinguishes in the mechanical properties. This paper expounds the physical mechanical properties of the plastic tubular product, compares the features of different kinds of the plastic tubular products, and points out the problems needing attention in the selection and the application of the plastic tubular products.