| 摘要 |
<p>A spiral pipe using waste plastic, used as a drainpipe or water conduit, is formed by using materials such as waste plastic or waste film to fill the inside of a rectangular profile, supplying resin and adhesive resin through auxiliary extruding apparatuses at both sides of the profile to make the profile adhere to each other. The spiral pipe is formed by using materials such as various fillers such as waste plastic, agricultural by-product such as chaff and rice straw, forestry by-product such as sawdust and pieces of wood, or fly ash. A rectangular profile is formed by an extruding apparatus at a processing temperature of 180-250 °C. An adhesive resin layer is formed integrally with the profile at the outer side of the winder by the resin and adhesive resin supplied by the auxiliary extruding apparatuses at both sides or either side of the profile. The profile has a not melted inner layer and a melted outer layer and the adhesive resin layer wrapping around the outer surface of the profile is formed to have an H beam shape. Thus, the spiral pipe can bear well the external pressure and is not breakable. Also, waste plastic can be recycled as valuable resources.</p> |
