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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.
Rumford fireplace in a New England home. A Rumford fireplace, sometimes known as a Rumford stove, is a tall, shallow fireplace designed by Sir Benjamin Thompson, Count Rumford, an Anglo-American physicist best known for his investigations of heat.
Coal stoves came in all sizes and shapes and different operating principles. Coal burns at a much higher temperature than wood, and coal stoves must be constructed to resist the high heat levels. A coal stove can burn either wood or coal, but a wood stove might not burn coal unless a grate is supplied. The grate may be removable or an "extra".
Directional solidification is the preferred technique for casting high temperature nickel-based superalloys that are used in turbine engines of aircraft. Some microstructural problems such as coarse dendritic structure, long dendrite side branches, and porosity hinder the full potential of single crystal ni-based alloys. [ 6 ]
The constant volume adiabatic flame temperature is the temperature that results from a complete combustion process that occurs without any work, heat transfer or changes in kinetic or potential energy. Its temperature is higher than in the constant pressure process because no energy is utilized to change the volume of the system (i.e., generate ...
And that category has been running stubbornly higher than inflation for more than two years, BLS data shows. After peaking at 8.2% in March, it has trudged lower and now sits at an annual rate of ...
A baby died after a hospital did not induce labor for more than 60 hours, a lawsuit alleges. Chelsea Wootton, 31, was scheduled to be induced at 41 weeks pregnant, her law firm Irwin Mitchell said ...
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