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Muldenhammer (Eibenstock)
Muldenhammer is a former subdivision of the town of Eibenstock in the Ore Mountains. It originated from an iron hammer forge, first mentioned in the 16th century and was abandoned in 1974 due to the construction of Eibenstock Dam. History A trip hammer forge on the river Zwickauer Mulde was first mentioned in the 16th century as ''Hammer untern Eybenstock''. The first known owner and master craftsman was Hans Dietz. Only goods for domestic use were produced under his management. Jacob Kleinhempel, the father-in-law of tax official and smeltery and forge owner Melchior Siegel (1515–1588), began to produce weapons in 1531.In 1568 the two men were among the first forge owners in the Ore Mountains who obtained the concession for a blast furnace. It was approximately six to eight metres tall and could produce about one tonne of pig iron per day. The forge remained the property of the Kleinhempel family until the middle of the 17th century, hence the nickname of the place. Later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zwickauer Mulde
The Zwickauer Mulde () is a river in Saxony, Germany. It is the left tributary of the Mulde and in length. The source of the river is in the Ore Mountains, near Schöneck, in the Vogtlandkreis. It runs northeast to Aue, then northwest to Zwickau (hence the name), and further north through Glauchau, Rochlitz and Colditz. A few kilometers north of Colditz, the Zwickauer Mulde is joined by the Freiberger Mulde to form the united Mulde. The Mulde is a tributary of the Elbe. History Cultural landscape development The valleys in the catchment area of the Mulde were presumably used from the end of the last cold stage as access routes into the Ore Mountains that was covered in dense, ancient forests. This is evinced by the remains of artifacts left behind by Old Stone Age hunters, as well as Bronze Age and Iron Age discoveries as far as the higher regions of the Ore Mountains. Later, the western Ore Mountains became the territory of Germanic and Slavic tribes. Paths, tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tonne
The tonne ( or ; symbol: t) is a unit of mass equal to 1000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton to distinguish it from the non-metric units of the short ton ( United States customary units), and the long ton ( British imperial units). It is equivalent to approximately 2204.6 pounds, 1.102 short tons, and 0.984 long tons. The official SI unit is the megagram (symbol: Mg), a less common way to express the same mass. Symbol and abbreviations The BIPM symbol for the tonne is t, adopted at the same time as the unit in 1879.Table 6 . BIPM. Retrieved on 2011-07-10. Its use is also official for the metric ton in the United States, having been adopted by the United States |
Paper Mill
A paper mill is a factory devoted to making paper from vegetable fibres such as wood pulp, old rags, and other ingredients. Prior to the invention and adoption of the Fourdrinier machine and other types of paper machine that use an endless belt, all paper in a paper mill was made by hand, one sheet at a time, by specialized laborers. History Historical investigations into the origin of the paper mill are complicated by differing definitions and loose terminology from modern authors: Many modern scholars use the term to refer indiscriminately to all kinds of mills, whether powered by humans, by animals or by water. Their propensity to refer to any ancient paper manufacturing center as a "mill", without further specifying its exact power source, has increased the difficulty of identifying the particularly efficient and historically important water-powered type. Human and animal-powered mills The use of human and animal powered mills was known to Muslim and Chinese paperma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hundshübel
Hundshübel is a village in Erzgebirgskreis district of Saxony, forming a subdivision of the municipality of Stützengrün in the Ore Mountains. It is located north of Eibenstock Dam on federal highway B 169. History The village was first mentioned in writing as ''Hudesudell'' on the occasion of the sale of the Tettau noble family selling the surrounding lands to the House of Wettin in 1533. At this time, about ten farmer families were living there who originated from Eibenstock and went there to church. In 1563 there were 15 families, in 1563 already 22. (Bayerische Staatsbibliothek München) The first wooden church, mentioned in 1545, was replaced by new building in 1558 which was financed by donations. After this had become dilapidated in the 18th century, a new church was built from 1784 until 1788. When Prince-elector John the Magnanimous took over the lordship of Schwarzenberg, Lutheranism which had hitherto only slowly gained acceptance spread quickly. In 1817 the ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bar Stock
Bar stock, also (colloquially) known as blank, slug or billet, is a common form of raw purified metal, used by industry to manufacture metal parts and products. Bar stock is available in a variety of extrusion shapes and lengths. The most common shapes are round (circular cross-section), rectangular, square and hexagonal. A bar is characterised by an "enclosed invariant convex cross-section", meaning that pipes, angle stock and objects with varying diameter are not considered bar stock. Bar stock is commonly processed by a sequence of sawing, turning, milling, drilling and grinding to produce a final product, often vastly different from the original stock. In some cases, the process is partially automated by specialized equipment which feeds the stock into the appropriate processing machine. Process and types Most metal produced by a steel mill or aluminium plant is formed (via rolling or extrusion) into long continuous strips of various size and shape. These strips are cut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finery Forge
A finery forge is a forge used to produce wrought iron from pig iron by decarburization in a process called "fining" which involved liquifying cast iron in a fining hearth and removing carbon from the molten cast iron through oxidation. Finery forges were used as early as the 3rd century BC in China. The finery forge process was replaced by the puddling process and the roller mill, both developed by Henry Cort in 1783–4, but not becoming widespread until after 1800. History A finery forge was used to refine wrought iron at least by the 3rd century BC in ancient China, based on the earliest archaeological specimens of cast and pig iron fined into wrought iron and steel found at the early Han Dynasty (202 BC – 220 AD) site at Tieshengguo.Pigott, Vincent C. (1999). ''The Archaeometallurgy of the Asian Old World''. Philadelphia: University of Pennsylvania Museum of Archaeology and Anthropology. , p. 186-187. Pigott speculates that the finery forge existed in the previous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pig Iron
Pig iron, also known as crude iron, is an intermediate product of the iron industry in the production of steel which is obtained by smelting iron ore in a blast furnace. Pig iron has a high carbon content, typically 3.8–4.7%, along with silica and other constituents of dross, which makes it brittle and not useful directly as a material except for limited applications. The traditional shape of the molds used for pig iron ingots is a branching structure formed in sand, with many individual ingots at right angles to a central channel or "runner", resembling a litter of piglets being nursed by a sow. When the metal had cooled and hardened, the smaller ingots (the "pigs") were simply broken from the runner (the "sow"), hence the name "pig iron". As pig iron is intended for remelting, the uneven size of the ingots and the inclusion of small amounts of sand cause only insignificant problems considering the ease of casting and handling them. History Smelting and producing wroug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blast Furnace
A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. ''Blast'' refers to the combustion air being "forced" or supplied above atmospheric pressure. In a blast furnace, fuel ( coke), ores, and flux (limestone) are continuously supplied through the top of the furnace, while a hot blast of air (sometimes with oxygen enrichment) is blown into the lower section of the furnace through a series of pipes called tuyeres, so that the chemical reactions take place throughout the furnace as the material falls downward. The end products are usually molten metal and slag phases tapped from the bottom, and waste gases (flue gas) exiting from the top of the furnace. The downward flow of the ore along with the flux in contact with an upflow of hot, carbon monoxide-rich combustion gases is a countercurrent exchange and chemical reaction process. In contrast, air furnaces (such as reverbera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated between the Baltic and North seas to the north, and the Alps to the south; it covers an area of , with a population of almost 84 million within its 16 constituent states. Germany borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its financial centre is Frankfurt; the largest urban area is the Ruhr. Various Germanic tribes have inhabited the northern parts of modern Germany since classical antiquity. A region named Germania was documented before AD 100. In 962, the Kingdom of Germany formed the bulk of the Holy Roman Empire. During the 16th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
