| 摘要 |
<p>A tube inner surface electropolishing device which includes an electrolyte delivery system (10) to cause electrolyte to flow through the tube (14) whose inner surface must be electropolished. An electrical cable having an electrode engaged to its distal end is slowly moved through the tube while an electrical current from a power supply (92) passes through the electrode (18) and the tube wall and the electrolyte flowing therebetween. Several electrode embodiments are disclosed including electrodes that include a chain of elements having alternating insulator and electrode elements, an electrode including a quantity of metallic wool enclosed in a permeable insulating member, and a flexible insulating member formed from a cylindrical tubular section which is axially compressible to produce a series of projecting flexible arms, so that any one section can be compressed to enter a smaller opening than the tube to be polished.</p> |
