General Concepts 1 min read
SLUSH CASTING
Slush casting is an extension of permanent mold casting or metallic mold casting. It is used widely for production of…
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Plaster Molding
Plaster molding process is depicted through Fig. 12.15. The mould material in plaster molding is gypsum or plaster of paris.…
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Shell Molding
Shell mold casting is recent invention in molding techniques for mass production and smooth finish. Shell molding method was invented…
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Carbon-Dioxide Gas Molding
This process was widely used in Europe for rapid hardening the molds and cores made up of green sand. The…
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MOLDING METHODS
Commonly used traditional methods of molding are bench molding, floor molding, pit molding and machine molding. These methods are discussed…
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CORE SAND
It is special kind of molding sand. Keeping the above mentioned objectives in view, the special considerations should be given…
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CORE
Cores are compact mass of core sand (special kind of molding sand ) prepared separately that when placed in mould…
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Green Sand Molding
Green sand molding is the most widely used molding process. The green sand used for molding consists of silica, water…
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Role Of Riser In Sand Casting
Metals and their alloys shrink as they cool or solidify and hence may create a partial vacuum within the casting…
General Concepts 2 min read
Factors Controling Gating Design
The following factors must be considered while designing gating system. (i) Sharp corners and abrupt changes in at any section or…
General Concepts 4 min read
GATING SYSTEM IN MOLD
1. Pouring basin It is the conical hollow element or tapered hollow vertical portion of the gating system which helps…
General Concepts 1 min read
VENTING OF MOLDS
Vents are very small pin types holes made in the cope portion of the mold using pointed edge of the…