Efficient and environment-friendly cleaning process for re-manufactured steel part of automotive turbocharger

Abstract

The invention provides an efficient and environment-friendly cleaning process for a re-manufactured steel part of an automotive turbocharger. The process comprises the following steps: 1) soaking; 2) washing; 3) ultrasonic coarse washing; 4) ultrasonic finish washing; 5) primary rinsing; 6) rust removal ultrasonic washing; 7) manual polishing; 8) secondary rinsing; 9) anti-rust treatment; and 10) drying. The efficient and environment-friendly cleaning process for the re-manufactured steel part of the automotive turbocharger adopts a novel rust removal process, optimizes an oily sludge removal process in factors such as time, formula proportion, temperature and mode, can efficiently and thoroughly remove foreign matters such as oily sludge, carbon deposition, rust and dust on old steel parts of a radial flow type and a mixed flow type turbocharger with re-manufacturing value, thereby laying a solid foundation for the re-manufactured turbocharger as a new one; therefore, the re-manufacturing ratio of the turbocharger is enhanced, energy and materials are effectively saved, the cost is lowered, the discharge of waste water is reduced to a great extent, and persistent and healthy development of the turbocharger industry is powerfully accelerated.

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 steel 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 for these scrapped automobiles are also scrapped. At present, there are basically two treatment methods for steel parts: one is to use steel parts for simple oil cleaning, and there is no consideration for surface rust, especially inner surface rust. The quality has a bad impact, the oil cleaning situation is not very ideal, the waste rate is high and the waste water discharge is large, the environmental pollution is great, and the requirements for remanufacturing cannot be met; the second is to return to the furnace for smelting, resulting in a large waste of cost and materials, and energy c...

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 for these scrapped automobiles are also scrapped. At present, there are basically two treatment methods for steel parts: one is to use steel parts for simple oil cleaning, and there is no consideration for surface rust, especially inner surface rust. The quality has a bad impact, the oil cleaning situation is not very ideal, the waste rate is high and the waste water discharge is large, the environmental pollution is great, and the requirements for remanufacturing cannot be met; the second is to return to the furnace for smelting, resulting in a large waste of cost and materials, and energy consumption. , environmental pollution has increased significantly