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keel block

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keel block [′kēl ‚bläk]
(civil engineering)
A docking block used to support a ship's keel.
(metallurgy)
A simple shape from which a test casting is made in the form of a large head, which is removed and discarded, with a keel on the bottom.


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A To provide certification that the cast iron metal and pouring process have produced castings that meet customer requirements, it is common for metalcasters to pour keel block or "Y" block molds at prescribed intervals of the casting production cycle from which test bars can be excised.
Dockside machinery and equipment including winches, pistons, boilers, capstans and keel blocks will show their role in the working life of the docks, while anchors, propellers and buoys will bring to life aspects of the life of the river including navigation, pilotage and tugs.
Using a seven pound hammer I had to split out the supporting pine keel blocks so Windsor Castle would sit down on the heavily greased launched ways.
 
 
 
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