misrun
Meaning
A casting that does not completely fill the mold, leaving unfilled spaces.
A casting that does not completely fill the mold, leaving unfilled spaces.
To run incompetently; mismanage.
To run badly or off-course.
To result in a misrun.
A failed test of oil or gas drilling equipment.
To run incompetently; mismanage.
To run badly or off-course.
To result in a misrun.
A failed test of oil or gas drilling equipment.
Examples
The reasons for cold shut or misrun may be too thin sections, improper gating system, slow and intermittent pouring, poor fluidity of metal.
When wall thickness is decreased to less than 1/16 in., adequate mold filling becomes almost impossible, except for extremely short distances, and misruns result because of the freezing of metal before the mold is filled.
A misrun is caused when the metal is unable to fill the mould cavity completely and thus leaves unfilled cavities.
If the molten metal is too cold or casting is too thin, entire mould may not be filled during pouring before the metal starts solidifying and result in misrun.
The experience of most drillstem testing companies indicates that the chance of a misrun in a poorly prepared hole is approximately 30 percent, whereas the chance of a misrun in a well-prepared hole has been cut down to roughly 15 percent.
Word Forms
misruns
misrunning
misran
misrun
Etymology
From mis- + run.