| 摘要 |
<p>A refurbishment process for a volumetric screw compressor of the 'oil-free' type, which comprises a male rotor (4) and a female rotor (5), is described. The process comprises visually checking the wear condition of the rotors (4, 5), treating their surface for removing the previous coating, and applying a new coating on the surface. The composition of the coating applied on the surface of the rotors (4, 5) consists of the following materials:</p> |
