General Concepts 1 min read
CORE
Cores are compact mass of core sand (special kind of molding sand ) prepared separately that when placed in mould…
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General Concepts 1 min read
Green Sand Molding
Green sand molding is the most widely used molding process. The green sand used for molding consists of silica, water…
General Concepts 3 min read
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…
General Concepts 3 min read
Steps Involved In Making A Sand Mold
1. Initially a suitable size of molding box for creating suitable wall thickness is selected for a two piece pattern. Sufficient…
General Concepts 4 min read
Properties Of Moulding Sand
The basic properties required in molding sand and core sand are described as under. Refractoriness Refractoriness is defined as the…
General Concepts 3 min read
Kinds Of Moulding Sand
Molding sands can also be classified according to their use into number of varieties which are described below. Green sand…
General Concepts 8 min read
MOLDING SAND
The general sources of receiving molding sands are the beds of sea, rivers, lakes, granulular elements of rocks, and deserts.…
