ue to the needs of various metal parts for industries,metal casting process was invented.We could make metal castings with different materials and structures.Normally,we could devided the casting process into investment casting and sand casting.Investment casting is mainly adopted in small precision......

In investment casting process,we often meet defects like gas cavity,sand inclusion,cold insulation,ect.Now we would like to talk about the effects of gas cavity on investment castings,which is caused as the gas is not timely escaped before crusts of liquid metal.

Shrinkage is one of the common problems for steel castings in China. There're certain rules on shrinking percentage of steel castings.

Steel casting is an important casting process in our foundry. Deformation usually happened on finished steel castings. Then, what leads to the deformation of steel castings? Deformation defects happened frequently all through the casting processes.  Mainly two factors result in the steel casting def......

Tongda foundry supplies cast stainless steel fittings for a long time in China. 

Casting generally does not apply pressure,and not require high strength of equipment and molds, has small restrictions on product size. Therefore, the production investment is less, and large-scale parts with excellent performance can be obtained, but the production cycle is long, and mechanical pro......