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A casting defect is an undesired irregularity in a metal casting process. Some defects can be tolerated while others can be repaired, otherwise they must be eliminated. They are broken down into five main categories: gas porosity, shrinkage defects, mould material defects, pouring metal defects, and metallurgical defects.
This is most likely to occur on a carbureted engine in cold weather, after a running engine has been shut off briefly before being restarted. Doing so can cause the choke valve to configure the mixture for a cold engine start, despite higher actual temperatures, resulting in an overly rich mixture and flooded engine.
A cold start can be difficult for an engine due to higher viscosity of oil and fuel in cold temperatures. Generally speaking, diesel engines have more difficulty starting at low outside temperatures than gasoline engines, and electric engines have the most problems. Diesel engines do not use spark plugs to ignite the air fuel mixture and rely ...
The Atlanta Stove Works company was founded in 1889 (originally named Georgia Stove Company) to produce cast-iron stoves. Initially, their business boomed to the point where in 1902, a separate foundry was built in Birmingham, Alabama, especially for the production of hollow ware and cast-iron cookware to supplement their stoves.
Cold start can refer to: Cold start (automotive), the starting of a vehicle engine at a low temperature relative to its operating temperature. Cold start (computing), a startup problem in computer information systems. Cold Start (military doctrine), a military doctrine developed by the Indian Armed Forces.
Visions – a brand of transparent stove top cookware originally created by Corning France and released in Europe during the late 1970s and in other markets beginning a short time later. West Bend Company; Wonder Pot – an Israeli invention for baking on top of a gas stove rather than in an oven. It consists of three parts: an aluminium pot ...
Additionally, the range of axial orientations in the directional solidification starting block should be minimized in order to successfully grow a single crystal. [12] This is difficult depending on the range of orientations in the DS starter block, and therefore makes orientation control a large area of focus.
Aluminium foundries want to produce high-quality aluminum castings with minimum porosity. Hydrogen porosity can be reduced by reducing the amount of hydrogen in the liquid aluminium alloy, by degassing or sparging. (Sometimes a small hydrogen concentration is intentionally maintained; some very fine hydrogen porosity can be preferable to ...