Technique for cleaning diesel engine cylinder block

Abstract

A technique for cleaning a diesel engine cylinder block includes the following steps that a gas outlet needle of the diesel engine cylinder block to be processed is removed, the residual root of the gas outlet needle is shorter than 10 mm, burnt-on sand in an inner cavity of the diesel engine cylinder block is removed through core hitting, and the core hitting time is 35-50s; the diesel engine cylinder block is placed in a shot blasting machine to be subjected to primary shot blasting and secondary shot blasting; manual shot blasting is carried out after secondary shot blasting; sand on the diesel engine cylinder block is blown by gas after manual shot blasting, and residual powder grains on the surface are removed; and high-temperature antirust paint is sprayed, and the diesel engine cylinder block is checked and stored. According to the technique for cleaning the diesel engine cylinder block, manual shot blasting is carried out after secondary shot blasting in the shot blasting machine, so that shot blasting quality and cleaning efficiency of the diesel engine cylinder block are improved, and the shot blasting quality of the inner cavity of the diesel engine cylinder block is ensured; sand blowing is conducted after manual shot blasting, and then the high-temperature antirust paint is sprayed, so that the diesel engine cylinder block has excellent mechanical performance and is superior in chemical corrosion resistance such as acid resistance, alkali resistance and hot oil resistance; and according to the cleaning technique, dust pollution is lowered, and the working environment is improved.

Description

technical field [0001] The invention belongs to the field of diesel engine cylinders, in particular to a cleaning process for diesel engine cylinders. Background technique [0002] With the rapid development of the automobile industry and the rapid increase in the number of automobiles produced, a large number of old engines are facing overhaul or replacement. The treated engine is more damaged, and the cleaned engine can only be maintained in a normal use state, and the service time of the repaired engine will be greatly shortened. [0003] During the process of cleaning and recycling the engine, the outer surface of the cylinder is usually completely covered with oil and rust, and the inner cavity is seriously deposited with carbon. The general brushing method cannot make the appearance the same as the new one. The traditional cleaning workshop is composed of stand-alone equipment, with low degree of automation, high labor intensity, the most dust spots, and the most seri...

AI Technical Summary

Problems solved by technology

The traditional cleaning workshop is composed of stand-alone equipment, which has low degree of automation, high labor intensity, the most dust spots, and the most serious dust pollution. At the same time, there are problems such as poor controllability and unstable cleaning quality of castings.

The general process method is difficult to remove, and the special cleaning agent or cleaning device is expensive and expensive