Answer: In the overhaul of screw compressor, it is inevitable to find that the rotor has problems such as wear and rust. Generally speaking, even if the twin-screw head is used for more than ten years (as long as it is used normally), the wear of its rotor is not obvious, that is, its efficiency will not drop too much. At this time, the rotor only needs to be slightly polished to repair the rotor; No collision or strong disassembly should occur during the disassembly and assembly of the rotor, and the removed rotor should be placed horizontally for safety; If the screw rotor is already seriously worn, that is, the exhaust volume caused by the leakage can no longer meet the user's gas requirements, it must be repaired. When repairing, it can be sprayed and then processed on the screw machine tool. However, since most service providers do not provide these services, it is difficult to complete. Of course, it can also be repaired manually after spraying, which requires knowing the specific line equation of the screw, processing a module for manual repair, and designing a set of special tooling to complete the repair work.
