| 摘要 |
There is provided a new and useful method for the repair of installed conduits characterized by the following method steps: drying of the inside of the line by flow-through of pre-dried compressed air, removal of interior coatings by flow-through of a mixture of compressed air and particles of an abrasive medium with a mean exterior diameter of > 0.8 mm and a specific weight of > 3.0 g ? cm-3 in an amount of >1.0 g ? Nm-3, the mixture flowing through the line with a mean speed of > 10 m ?s-1, relative to normal pressure, and blowing out the line by means of pre-dried compressed air. |
