Example: tourism industry
Foundry sand preparation
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Metal casting processes - IIT Guwahati
www.iitg.ac.inThe preparation of molten metal for casting is referred to simply as melting. The molten metal is transferred to the pouring area where the moulds are filled. Cleaning Cleaning involves removal of sand, scale, and excess metal from the casting. Burned-on sand and scale are removed to improved the surface appearance of the casting.
IS 6186 (1986): Bentonite
law.resource.orgtype 2 of the material used for foundry has been deleted, as a separate Indian Standard is under preparation by the Structural and Metals Division Council of IST. The off-shore and high grade of this material have been aligned with the Oil and Natural Gas Commission ( …