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fL Making a Simple Mold
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alloys aluminum American Foundrymen,s Society automatically blank bottom board carbon cast iron centrifugal casting chills clamped cleaning coke compression cope and drag core box core prints costs cupola cylinder diameter die-casting directional solidification drag pattern plates drawing drop hammer dry-sand core edges ejector pins Electric Engineering equipment flask flow forging forming foundry furnace gating grains graphite gray iron green-sand hammer heat holes Hydraulic Press Hydraulic Press Manufacturing inch jolt ladle located lower magnesium malleable matchplate material mechanical melting method moisture mold cavity molders molding sand molten metal obtained operation pattern-draw molding machine permanent molds permanent-mold permeability pins placed plastic plunger pouring powder Press Manufacturing Company pressure produced punch rammed removed riser roller conveyor rolls rotating sand castings shakeout shape sheet shown in Fig shrinkage solidification sprue squeeze steel stresses strip surface temperature tensile strength thickness tube usually vertical