Aging 2 (english) A change in properties that occurs at ambient or moderately elevated temperatures after hot working or a heat treating operation (quench aging in ferrous alloys), or after a cold working operation (strain aging). The change in properties is often, but not always, due to a phase change (precipitation), but does not involve a change in chemical composition. In a metal or alloy, a change in properties that generally occurs slowly at room temperature and more rapidly at higher temperatures.
AIR BLEEDER AUTOMATIC (english) A valve that is fit into a hydraulic pipeline to facilitate automatic release of air trapped in the pipeline. See also AIR BLEEDER, MANUAL.
Ball Piston Pumps (english) The Ball Piston Pump is a very simple pump design. It has a rotor which revolves around an internal stator. The rotor has twelve cylinders machined out of it, and each cylinder has a ball inside which can slide in and out of the cylinder.
ภาคีวิศวกรสาขาเครื่องกล Associate Mechanical Engineer
ภาคีวิศวกรสาขาเหมืองแร่ Associate Mining Engineer
สมาชิกสามัญ Ordinary Member
สมาชิกวิสามัญ Extraordinary Member
สมาชิกกิตติมศักดิ์ Honorary Member
B Elevation (english) The bottom level of the boiler firebox where two oil guns are located. The oil guns are used if the boiler needs extra steam while on oil fire.
Babbitt (english) An antifriction metal alloy used for bearing inserts;made of tin,antimony,lead and copper.
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