Core Oil

Core Oil is a good core should withstand tremendous changes in thermal conditions and resulting stresses and produce castings without internal strain cracks, sand inclusions, deformations, sitering, washout, gas seams, blows and penetration. The foundry technician is thereforem confronted wtih the difficult task of formulating proper core sand mixings from the available raw materials for the preparation of various types of cores form plain cores tohighly complicated ones. In general foundries undertake a variety of castings, differing in casting dimensions and designs.