An Introduction to the Casting Molds

Posted By : Varun Metal Foundry

Metal casting is generally a manufacturing process wherein a liquid material is emptied into a mold, which comprises a hollow opening of the desired form or shape and is then allowed to solidify. This solidified casting is then removed and broken out so as to complete the procedure.

While sand is used as the primary mold material, there is a metal that is used as the mold. Typically, a cast meehanite or iron is used as the mold material and sand is used to make the objects. The cavity surface is usually covered with a thin layer of material (either sodium silicate or clay), which is heat resistant.

Usually the casting molds are pre-heated to a temperature of about 3920 F before the metal is pored into the cavity. The design of cavity for these casting molds does not works on the same principle of shrinkage like in sand casting molds. This is due to the fact that casting molds heat up and enlarge during the pouring process and hence the cavity does not require to be expanded as in the case of sand castings. However, care should be taken so as to ensure a right balance as people may use an external source of water for cooling or they may also opt for appropriate radiation techniques.

Varun Metal Foundry is the leading manufacturer of C.I. Casting, Gray C.I. Casting,Close Gray C.I. Casting, and Graded C.I. Casting

Posted by : C.I.Casting