Cleaning process of efficient and green automobile turbocharger remanufactured aluminium part

Abstract

The invention provides a cleaning process of an efficient and green automobile turbocharger remanufactured aluminium part. The cleaning process comprises the steps of (1) soaking, (2) washing, (3) ultrasonic rough cleaning, (4) ultrasonic fine cleaning, (5) one-time rinsing, (6) mildew removal ultrasonic cleaning, (7) oxide layer removal ultrasonic cleaning, (8) second rinsing, (9) passivating, and (10) drying. According to the cleaning process of the efficient and green automobile turbocharger remanufactured aluminium part, a novel mildew removal and oxide layer removal process is used, an oil stain removal process in factors of time, formula ratio, temperature, mode and the like is optimized, foreign matters including the oil stain, the mildew, the oxide layer, dust and the like on radial-flow turbocharger and a fixed-flow turbocharger old aluminium parts with remanufacture value are removed efficiently and thoroughly, a solid foundation is laid for the quality of the remanufactured turbocharger same as a new turbocharger. The remanufacture rate of the turbocharger is improved, the energy, materials and the cost are effectively saved, the waste water discharge quantity is reduced significantly, and sustainable and healthy development of the turbocharger industry is greatly promoted.

Description

technical field [0001] The invention belongs to the automobile turbocharger remanufacturing technology, in particular to a high-efficiency and green cleaning process for remanufacturing aluminum parts of the automobile turbocharger. Background technique [0002] Our country has entered the automobile society. A large number of automobiles are scrapped every year, and the turbochargers used in these scrapped automobiles are also scrapped. After these scrapped turbochargers are disassembled, the surface of aluminum alloy parts (hereinafter referred to as aluminum parts) has A large amount of foreign matter such as oil stains, mildew spots, oxide layers, dust, etc. At present, there are basically two treatment methods for aluminum parts: one is to use aluminum parts for simple oil cleaning, and there is a lack of research and consideration on surface mildew spots and oxide layers. The cleaning situation is not very ideal, the waste rate is high and the waste water discharge is ...

AI Technical Summary

Problems solved by technology

[0002] Our country has entered the automobile society. A large number of automobiles are scrapped every year, and the turbochargers used in these scrapped automobiles are also scrapped. After these scrapped turbochargers are disassembled, the surface of aluminum alloy parts (hereinafter referred to as aluminum parts) has A large amount of foreign matter such as oil stains, mildew spots, oxide layers, dust, etc. At present, there are basically two treatment methods for aluminum parts: one is to use aluminum parts for simple oil cleaning, and there is a lack of research and consideration on surface mildew spots and oxide layers. The cleaning situation is not very ideal, the waste rate is high and the waste water is discharged too much, which causes great environmental pollution and cannot meet the requirements for remanufacturing. The second is re-smelting, resulting in a large waste of cost and materials, and a significant increase in energy consumption and environmental pollution.