- lead dross
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свинцовая изгарь
Англо-русский словарь технических терминов. 2005.
lead dross
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Lead — (pronEng|ˈlɛd) is a main group element with a symbol Pb ( la. plumbum). Lead has the atomic number 82. Lead is a soft, malleable poor metal, also considered to be one of the heavy metals. Lead has a bluish white color when freshly cut, but… … Wikipedia
Dross — For the Austrian municipality, see Droß. Aluminium dross Dross is a mass of solid impurities floating on a molten metal. It appears usually on the melting of low melting point metals or alloys such as tin, lead, zinc … Wikipedia
lead processing — Introduction preparation of the ore for use in various products. Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… … Universalium
galena — lead ore, lead sulphide, c.1600, from L. galena mix of silver and lead; dross from smelting lead, of unknown origin … Etymology dictionary
Type metal — The term type metal (sometimes called hot metal ) represents a range of metal alloys that are used in traditional typefounding and mechanical typesetting. History Although the knowledge of casting soft metals in moulds was well established before … Wikipedia
METALS AND MINING — In the Bible Six metals are mentioned in the Bible and in many passages they are listed in the same order: gold, silver, copper, iron, tin, and lead. Antimony is also mentioned. The metals are referred to in various contexts, including methods of … Encyclopedia of Judaism
Casting (metalworking) — Casting iron in a sand mold In metalworking, casting involves pouring liquid metal into a mold, which contains a hollow cavity of the desired shape, and then allowing it to cool and solidify. The solidified part is also known as a casting, which… … Wikipedia
Wave soldering — is a large scale soldering process by which electronic components are soldered to a printed circuit board (PCB) to form an electronic assembly. The name is derived from the use of waves of molten solder to attach metal components to the PCB. The… … Wikipedia
Gas metal arc welding — RMD redirects here. RMD may also refer to IRA Required Minimum Distributions. Gas metal arc welding … Wikipedia
nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… … Universalium
Spiritual transformation — is the act of transforming the deepest aspects of the human spirit via a self induced or divine act.ee also*Integral transformative practice *Transpersonal psychology *Sivananda *MeditationThe Way of Spiritual Transformationby Hieromonk… … Wikipedia
