Bending Strength |
(english) Upper limit of normal stress of a beam at which fracture or excessive plastic deformation occurs. |
Bent Axis Pumps |
(english) In this pump, the pistons are at an angle to the drive shaft and Thrust Plate. The piston block shaft is connected to the drive shaft by a universal joint, not shown. The drive shaft, thrust plate, piston block shaft, and piston block all revolve. The connecting rods are attached to the thrust plate and revolve with it, unlike the swash plate pump where the piston rods slide past a stationary swash plate. The outlet ports are semi-circular holes in the Valve Plate, shown on the far right of the animation on edge and in a head-on view below, right. As the pump revolves, half the pistons suck in fluid as they pass over the intake port. The other pistons discharge their fluid through the outlet port. This pump should be compared to the radial piston pump, swash plate pump, and wobble pump. |
Bentonite |
(english) A colloidal clay derived from volcanic ash and employed as a binder in connection with synthetic sands, or added to ordinary natural (clay-bonded) sands where extra strength is required. |
Beryllium Copper |
(english) An alloy of copper and 2-3% beryllium with optionally fractional percentages of nickel or cobalt. Alloys of this series show remarkable age-hardening properties and an ultimate hardness of about 400 Brinell (Rockwell C43). Because of such hardness and good electrical conductivity, beryllium-copper is used in electrical switches, springs, etc. |
Bessemer Process |
(english) A process for making steel by blowing air through molten pig iron contained in a refractory lined vessel so that the impurities are thus removed by oxidation. |
BETA RATIO (#) |
(english) The amount, expressed as a ratio, of particles in a fluid stream upstream of a filter, after the fluid posses through a filter, divided by the amount of particles downstream, for a particular size particle. |
Bevel |
(english) Angle formed between the prepared edge of the end of tube and a plane perpendicular to the surface. Standard pipe bevel is 30 degrees. |
BHN |
(english) Brinell Hardness Number |
BI |
(english) Chemical symbol for Bismuth |
Bi-Coil |
(english) Also BY-COIL. Tin Mill term. Customers buy "by coil" or "bi-coil" rather than cut sheets |