Why gate and riser are provided in mould?

Tagged: ,

This topic contains 0 replies, has 1 voice, and was last updated by Profile photo of MEW Team MEW Team 1 year, 7 months ago.

  • Author
    Posts
  • #4593
    Profile photo of MEW Team MEW Team 
    Keymaster

    Molten metal flowing through the runner enters into mould cavity using gate.

    As the poured molten metal is cooled in the mould cavity, the solidification happens. Since density of solid is greater than liquid, the size of solidified metal is lesser than size of the molten metal. As a result the size of the molten metal shrinks upon cooling and produces little bit small part than required size. In order to compensate this problem, riser stores some extra molten metal and supplies the same to mould cavity when there is a change in volume of molten metal (Shrinkage). Hence it is not possible to produce perfect casting without riser.

     

Viewing 1 post (of 1 total)

You must be logged in to reply to this topic.

All newly proposed concepts/methods/techniques are property of respective contributor and mechanical.in. Any content from third party are property of respective third party, governed by third parties legal information, published here with third party's grant and are available only for reference purpose.

COPYRIGHT ©2013-2017 MECHANICAL.IN. ALL RIGHTS RESERVED.

Privacy Policy | Terms of Use | User Content Policy | Report Problem/Bug/Abuse | FAQ | Contact us

Log in with your credentials

or    

Forgot your details?

Create Account