Acid Process 1 |
(english) A process of making steel, either Bessemer, open-hearth or electric, in which the furnace is lined with a siliceous refractory and for which low phosphorus pig iron is required as this element is not removed. |
Acid Steel |
(english) Steel melted in a furnace with an acid bottom and lining and under a slag containing an excess of an acid substance such as silica. |
Acid-Brittleness |
(english) Brittleness resulting from pickling steel in acid; hydrogen, formed by the interaction between iron and acid, is partially absorbed by the metal, causing acid brittleness. |
Acid-Process |
(english) A process of making steel, either Bessemer, open-hearth or electric, in which the furnace is lined with a siliceous refractory and for which low phosphorus pig iron is required as this element is not removed. |
Acme Thread |
(english) A screw thread having a 29 degree included angel. Used largely for feed and adjusting screws on machine tools. |
Activation |
(english) The changing of the passive surface of a metal to a chemically active state. Contrast with passivation. |
Actual Weight |
(english) The customer buys by the actual (scale) weight of the steel. The theoretical weight is used in estimating, however, it is not to be used for billing. |
ADAPTER |
(english) A mechanical device used to align the shaft of an electric motor (or other rotary device) with the shaft of a hydraulic pump to maintain radial and parallel shaft alignment. |
Adapti Investment Casting Process |
(english) A lost wax process employing one of three methods; centrifugal, vacuum or gravity-pouring casting. |
Adeline Steelmaking Process |
(english) Method of producing a precision casting of steel or steel alloys using aluminolthermic process and lost wax, followed by centrifugal action. |