My apologies... I got it wrong... it is just the material continually in contact with the flow in a valve. Thank you anyway...
what does it mean when they mean "design for your experiment"
k mean thousand so 600k mean's 600 thousand 400k mean's 400 thousand
it mean re invented
Mean Machines was created in 1990.
Metalurgy
Mainly metalurgy, civil engineering, metal working.
Improvements in metalurgy have allowed higher pressure cartridges to be developed.
Metalurgy, irrigation, roofing tiles, roads and bridges, jewelry, trade.
Mechanical wear. This is compounded by a lack of maintenence; harsh enviorment; and/or poor design and metalurgy. There is no such thing as perpetual motion!
Maybe the best way is to find a blacksmith, who will teach you from the very basics of metalurgy and treatment of metals, upwards.
My apologies... I got it wrong... it is just the material continually in contact with the flow in a valve. Thank you anyway...
Powdered metallurgy is the process of mixing elements in powdered form and compacting them. The compacted form is then heated to form different shapes of metals.
Metalurgy is the science and technology of metals.
To do bicycling you need a bicycle. And the bicycle is a man-made item relying heavily on techology to provide all the bits and pieces.
Science and technology have been a part of human history even before the middle ages. The bow and arrow, irrigation, metalurgy, astronomy etc. If you're asking when the dark ages ended than look up The Reinassance.
There are a variety of copper tin alloys both in terms of proportion and in terms of additional alloying elements. The number of possibilties is far to extensive for a medium like Wiki. You must refer to a metalurgy handbook for specific details. Such a handbook will be available from better libraries or the library of an engineering school. Also a community college that offers engineering Technician courses will have the appropriate materials.