Compared with resin sand and sodium silicate sand cast steel process, wet mold clay sand cast steel process has the advantages of flexible production, high efficiency, short cycle, easy to realize mechanization and automation. Of course, it also has some disadvantages and process control difficulties, that is, it is easy to produce casting defects such as pores, sand inclusion, surface sand sticking, shrinkage porosity and shrinkage, cracks, large workload of defect welding and repair and high cleaning cost.
Therefore, analyzing the causes and preventive measures of common defects of Wet Mold clay sand steel castings is of great significance to reduce defects and welding repair and cleaning workload, reduce cost and improve production efficiency.