- direct electric arc
- 直接電弧
English-Chinese dictionary. 2013.
direct electric arc
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Electric arc furnace — An electric arc furnace (EAF) is a furnace that heats charged material by means of an electric arc. Arc furnaces range in size from small units of approximately one ton capacity (used in foundries for producing cast iron products) up to about 400 … Wikipedia
Electric arc — An electric arc is an electrical breakdown of a gas which produces an ongoing plasma discharge, resulting from a current flowing through normally nonconductive media such as air. A synonym is arc discharge. The phenomenon was first described by… … Wikipedia
Arc welding — uses a welding power supply to create an electric arc between an electrode and the base material to melt the metals at the welding point. They can use either direct (DC) or alternating (AC) current, and consumable or non consumable electrodes.… … Wikipedia
Electric heating — is any process in which electrical energy is converted to heat. Common applications include heating of buildings, cooking, and industrial processes. An electric heater is an electrical appliance that converts electrical energy into heat. The… … Wikipedia
Electric glow discharge — is a type of plasma formed by passing a current at 100 V to several kV through a gas, usually argon or another noble gas. It is found in products such as fluorescent lights and plasma screen televisions, and is used in plasma physics and… … Wikipedia
arc — ARC, arcuri, şi (2) arce, s.n. 1. Armă (primitivă) de aruncat săgeţi, alcătuită dintr o vargă flexibilă uşor încovoiată şi o coardă prinsă de extremităţile vergii. ♦ p.anal. Ceea ce are forma unui arc (1). Arcul sprâncenei. 2. Porţiune dintr o… … Dicționar Român
Direct reduced iron — (DRI), also called sponge iron,[1] is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. The reducing gas is a mixture majority of hydrogen (H2) and carbon… … Wikipedia
Arc lamp — The electric arc in an arc lamp consists of gas which is initially ionized by a voltage and is therefore electrically conductive. To start an arc lamp, usually a very high voltage is needed to ignite or strike the arc. This requires an electrical … Wikipedia
electric furnace — a furnace in which the heat required is produced through electricity. [1880 85] * * * Chamber heated with electricity to very high temperatures, for melting and alloying metals and refractories. Modern electric furnaces generally are either arc… … Universalium
arc furnace — a furnace in which heat is generated by an electric arc. * * * Type of electric furnace in which heat is generated by an arc between carbon electrodes above the surface of the material (commonly a metal) being heated. William Siemens first… … Universalium
Arc converter — The arc converter, sometimes called the arc transmitter or Poulsen arc after its inventor Valdemar Poulsen, is a device used to convert DC energy into RF energy. It is now on the list of IEEE Milestones as a historic achievement in electrical… … Wikipedia
