Mechanical seal rings
The Metcar Grade M-444 is an antimony impregnated carbon-graphite primary seal ring designed for sealing refrigerants and low viscosity liquids
The Metcar Grade M-444 is an antimony impregnated carbon-graphite primary seal ring designed for sealing refrigerants and low viscosity liquids. Low viscosity liquids are difficult for mechanical seals because the hydrodynamic film that they create between the two rubbing seal faces is extremely thin. The M-444 is able to counteract this with a self-polishing feature as well as the high dimensional stability of both solid silicon carbide and antimony impregnated carbon-graphite that enables these two materials to run in the required close proximity.
Metallized Carbon Corporation
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Annual Salary Survey
Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.
There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.
But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.
Read more: 2015 Salary Survey