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Tuesday, 22 April 2014

Use of Two Parting Surfaces

Use of Two Parting Surfaces Points : Use of Two Parting Surfaces Various patterns are so shaped that it is needed to create a mould by two parting surfaces in order to take away the pattern as of the sand mould. As an case it is preferred to mold the sheave wheel. This can be moulded by as a minimum four different methods, and three of them use two parting surfaces. Four method of moulding a sheave are the three-part flask, greens and core, green sand core with lifting ring and dry-sand core method.

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