出版社：Defence Scientific Information & Documentation Centre
摘要：The importance of suitable moulding sand to a Foundry cannot be over-emphasized, the gradations and composition of sand contribute to a large extent to the success of the-castings, in particular when the item cast is to be of a high standard having excellent finish at both outer and inner surfaces. To ordinance Factory management (OFM) which is essentially Steel Casting Factory, the-problem had been two-fold, Firstly the location of a suitable nearer source of silica sand to avoid transportation difficulties which often cause breakdown in supplies, and secondly the establishing of a source of sufficient quantity having a suitable and consistent grading so as to adopt it on a permanent basis. This article does not claim to present any extensive research work or any original finding, but simply tries to put forth this problem with all its implications and the effects made to overcome it.
