Repair process of screw rod compressor rotor

A screw compressor and rotor technology, applied in the field of compressors, can solve the problems of screw rotor corrosion, low repair timeliness, screw compressor rotor scrapping, etc.

Inactive Publication Date: 2013-12-25
CHANGSHU MIAOQUAN COMPRESSOR ACCESSORIES
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  • Abstract
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Problems solved by technology

[0003] At present, the water and carbon dioxide produced by the screw compressor in various processes will form more carbonic acid and calcium oxide and other substances, which are easy to cause corrosion, erosion and wear hazards to the screw rotor. The meshing gap of the rotor reaches 8-10mm, and the design requirement is usually 0.5-0.6mm, which leads to the scrapping of the screw compressor rotor, so the screw compressor often needs to be repaired

Method used

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  • Repair process of screw rod compressor rotor

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Embodiment

[0016] The specific implementation steps are as follows:

[0017] a) Rotor surface pretreatment, the specific process is: first, clean and polish the corrosion fatigue layer, spiral surface and end surface corrosion of the male and female rotor body to remove the fatigue layer; then according to the size and shaft diameter surface damage, the male and female The diameter of the rotor support shaft, the shaft diameter of the synchronous gear, and the shaft diameter of the seal are rough-turned; then the rotor is subjected to a comprehensive non-destructive inspection; finally, a special cleaning agent is used to clean the surface of the rotor.

[0018] b) Laser cladding processing, laser cladding processing includes the following steps: 1) Configure laser cladding metal powder; according to the composition and actual working conditions of the rotor, the composition and mass ratio of the laser cladding metal powder configured are: manganese 55%, 15% chromium, 13% nickel, and 17%...

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Abstract

The invention provides a repair process of a screw rod compressor rotor. The repair process comprises the following processing steps of (a) rotor surface pretreatment, (b) laser cladding processing, (c) mechanical processing and (d) rotor detection. The invention discloses the repair process of the screw rod compressor rotor. The repair process has the advantages that the implementation is simple and convenient, the repair cost is low, the screw rod compressor rotor treated by the repair process has higher intensity and better surface corrosion resistance and wear resistance, in addition, the rotor gap is small, and the surface is smooth and cannot be easily contaminated.

Description

technical field [0001] The invention relates to a compressor, in particular to a repair process for a screw compressor rotor, and belongs to the technical field of compressors. Background technique [0002] Screw compressors are widely used in aerodynamics, refrigeration and various technological processes due to their unique advantages such as few wearing parts, compact structure, stable operation, long life, high working reliability and high efficiency. The rotor is the core part of this kind of compressor. The most important thing in the design of the rotor is the design of the rotor tooth shape. Its profile is complex and requires high processing. The reliability, efficiency and noise of the screw compressor depend largely on the machining accuracy of the screw rotor. [0003] At present, the water and carbon dioxide produced by the screw compressor in various processes will form more carbonic acid and calcium oxide and other substances, which are easy to cause corrosio...

Claims

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Application Information

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IPC IPC(8): B23P6/00
Inventor 顾建青
Owner CHANGSHU MIAOQUAN COMPRESSOR ACCESSORIES
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