Continuous casting

Introduction:

There are many opportunities for cost economies in the continuous casting of metals. In addition,metals starting as continuous castings have a degree of soundness and uniformity not possessed by ingots,bars, and billets. Briefly, the process consists of continuously pouring molten metal into a mold that has the capability for rapidly chilling the metal to the point of solidification, and then withdrawing it from the mold.

continuous casting.JPG

Process:

In this process, molten metal is poured through a graphite mold.
The opposite end of the mold contains a cooling apparatus. The withdrawing rollers draw the solidified rod from the mold at a continuous rate and pass it through additional cooling and finally cross cutting. The improved mechanical properties of parts produced by continuous casting and its lower cost of operation for larger runs, make this method very economical.

Advantages of Continuous Casting:

  • Sprue, runner, riser, etc. are not used. Hence, no waste metal this leads to 100% casting yield.
  • Process is automatic.
  • Product has good consistent soundness.
  • Mechanical Properties are high and very reproducible.

Disadvantages of Continuous Casting::

  • Not suitable for small quantity production.
  • Continuous and efficient cooling of moulds is required, else, center-line shrinkage develops.
  • Requires large floor space.

Continuous casting process

continuous casting.JPG

Continuous casting:

External links:

ccc.illinois.edu/introduction/concast.html

ccc.illinois.edu/introduction/overview.html

www.makstil.com/en/03-Process/processoFurnace.swf

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