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Vacuum Oil Company was an American oil company known [according to whom?] for their Gargoyle 600-W steam cylinder motor oil. [citation needed] After being taken over by the original Standard Oil Company and then becoming independent again, in 1931 Vacuum Oil merged with the Standard Oil Company of New York to form Socony-Vacuum, later renamed to Mobil and eventually merging with Standard Oil ...
A letter from my father to T. E. Mobley of Standard Vacuum in June 1942 . . . reported that the Yu Men wells then had a capacity of about 1,000 barrels of oil and 10,000 gallons of gasoline a day, except in winter when cold weather caused the oil to congeal. This was the first major oil field in China.
An oil diffusion pump is used to achieve higher vacuum (lower pressure) than is possible by use of positive displacement pumps alone. Although its use has been mainly associated within the high-vacuum range, down to 1 × 10 −9 mbar (1 × 10 −7 Pa), diffusion pumps today can produce pressures approaching 1 × 10 −10 mbar (1 × 10 −8 Pa) when properly used with modern fluids and accessories.
Materials for use in vacuum are materials that show very low rates of outgassing in vacuum and, where applicable, are tolerant to bake-out temperatures. The requirements grow increasingly stringent with the desired degree of vacuum to be achieved in the vacuum chamber. The materials can produce gas by several mechanisms.
Interior view of a turbomolecular pump. A turbomolecular pump is a type of vacuum pump, superficially similar to a turbopump, used to obtain and maintain high vacuum. [1] [2] These pumps work on the principle that gas molecules can be given momentum in a desired direction by repeated collision with a moving solid surface.
Vegetable oil can be heated to 400° to 450° so the best substitutes for these cooking methods will have similarly high smoke points. Use any of the following neutral oils in a 1:1 substitution ...
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