| 摘要 |
Machine for localised cleaning, including pickling acid or a composition/mixture of chemical elements with pickling action that is applie d by hand or by mechanical instruments to the surface (5; 46; 64; 73) that is to be treated and also contains acid held in a limited quantity in the work position by a cell (1; 25; 35; 48; 65; 74) in material that will withstand t he corrosive action of the acid; the cell is of the same volume (7; 47) as the acid used, i.e. it completely fills it with acid and reduces the volume to t he volume of the acid contained in the perimeter of the cell projected on the surface to be treated; the acid is activated by the action of a device (11; 68) that activates pickling in its own device. Different constructional form s with electrolytic and/or ultrasound action are described together with aspiration and separation of fumes. |
