Shrinkage and porosity defects in steel casting and preventive measures
In the thick section of the casting, at the hot spot or the axis where the final solidification takes place, […]
In the thick section of the casting, at the hot spot or the axis where the final solidification takes place, […]
Features: During the molding operation, there is sand sticking on the formwork, and the mold cavity has such phenomena as
Inside, on or near the surface of the casting, there are smooth holes of different sizes, round, long and irregular
1.Porosity Casting defect characteristics Inside, on or near the surface of the casting, there are smooth holes with different sizes,
1, Characteristics There are defects in some parts of the casting, which often appear in the thin-walled part, the farthest
Various casting defects often occur in the production of steel castings. How to prevent these defects has always been the
1.Porosity Features There are smooth holes of different sizes on the inner or surface of the casting. Main causes ①
For box type and trolley type resistance furnace plates, a high temperature tempering should be carried out before use, and
On the surface of the casting, all or part of the surface is covered with a layer of metal (or
Fast graphite fragmentation The broken fast graphite is a kind of deformed graphite which often appears in the large end