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The invention provides polycrystalline silicon chunks and a process for comminuting polycrystalline silicon rods. 2. Description of the Related Art. On the …
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Ultrapure polycrystalline silicon (polysilicon) is the major material used for crystal-line silicon-based solar cells. The silicon purity required is generally more than 99.99999%, or called 7-nines, or 7 Ns. Theoretically, the higher the purity of the silicon material, the better is the quality of the solar cell that is produced. The effect
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The utility model belongs to the technical field of polysilicon processing. Based on the problem that the crushed material particles of the existing jaw crusher cannot completely meet the requirements, the utility model discloses a polycrystalline silicon crusher, which comprises: the machine body is arranged on the ground through a support frame; the …
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The present invention includes a crusher that can be conveniently applied to crushing silicon lumps, particularly crushing rod-shaped polycrystalline silicon lumps into fist-sized pieces called nuggets, and a plurality of such crushers. The present invention relates to a silicon crusher.
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The utility model relates to a polycrystalline silicon crusher, including primary crushing mechanism and second grade crushing mechanism, primary crushing mechanism installs in second grade crushing mechanism top, primary crushing mechanism includes clamp plate and broken framework, the inside interval of broken framework is provided with a plurality …
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A polycrystalline silicon rod obtained by entirely or partially removing a peripheral portion from the rod to leave a central portion, and processing the central portion, preferably, the peripheral portion is removed by grinding in an amount corresponding to 10 to 60% of the diameter of the rod, and then subjected to groove-forming processing.
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A monocrystalline silicon rod is used to test the resistivity (n-type or p-type), minority carrier lifetime, carbon, oxygen, donors, and acceptor impurities in the …
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1. A method for comminuting coarse polysilicon, comprising feeding coarse polysilicon to a roll crusher comprising a roll which rotates about a shaft, the roll comprising a carrier roll of steel and a plurality of hard metal segments of a cobalt matrix in which tungsten carbide is incorporated, said hard metal segments reversibly fastened with a …
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The utility model discloses a jaw crusher for polycrystalline silicon, which relates to the technical field of polycrystalline silicon and solves the technical problem that the broken polycrystalline silicon bars with flat tops and flat bottom teeth of the jaw crusher can generate more waste materials, and comprises a machine body, wherein a movable jaw …
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Brand: JINXIN. TYPE: JX-PE series (accept customized) Application: crush polycrystalline silicon, rock mine, coal mine, concrete batching plant, dry-mixed …
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Deposition on Rods The resultant highly pure trichlorosilane is used to make rods of hyperpure polycrystalline silicon (polysilicon). These rods are produced via chemical …
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The invention relates to a polycrystalline silicon crusher with a bar conveying device, which comprises a rack, a bar pushing mechanism, a bar clamping device and a polycrystalline silicon crushing device, and is characterized in that the bar pushing mechanism is arranged right behind the rack (7), the bar clamping mechanism is …
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Polycrystalline silicon (polysilicon) is usually produced by gas vapor deposition in a Siemens reactor. This involves depositing high-purity silane or …
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The subject matter of the invention is a method for producing polycrystalline silicon, comprising a) depositing of polycrystalline silicon by means of CVD on at least one U-shaped substrate which is heated by way of direct current passage to a temperature at which polycrystalline silicon is deposited on the substrate, as a result of which at least …
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The invention relates to a full-automatic mechanized polycrystalline silicon crusher. Silicon bars with a preset quantity are piled in a bar storage mechanism; a discharge hole vibrator arranged at an outlet of the bar storage mechanism is started to convey the silicon bars to a feeding mechanism; a lifting mechanism lifts the silicon bars to a height as …
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Polycrystalline Silicon Carbide Crusher. The occupying ration of the crushing manufacturers on the market is referring to the ratio of the sales amount of the …
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The utility model discloses a changeable flexible polycrystalline silicon breaker of intensity belongs to breaker technical field, with solve current hubei province board and be the rigid contact between the polycrystalline silicon, hubei province board easily appears damaging when smashing polycrystalline silicon, the easy infiltration polycrystalline …
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High-Purity Polycrystalline Silicon. Integrated circuits (ICs) are on the base of single crystal Si. The raw material is high-purity polycrystalline Si (or poly-Si) with the purity of 99.999999~99.9999999% or even higher. ... poly-Si can be also divided into two types of rod-like and granular according to the difference of shape and production ...
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The invention provides polycrystalline silicon chunks and a process for comminuting polycrystalline silicon rods. 2. Description of the Related Art. On the industrial scale, crude silicon is obtained by the reduction of silicon dioxide with carbon in a light arc furnace at temperatures of about 2000° C.
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Silicon rod, polycrystalline, unpolished, 1.6cm (0.6in) dia, 99.9999% (metals basis), Thermo Scientific Chemicals Catalog Number 11377818. 69.33 GBP valid until Use promo code "21615" to get your promotional price. Click to view available options Quantity: 10 mm ...
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It used in the first step for a variety of ore rock broken. All kinds of ores which compressive strength is not higher than 320 Mpa can be one-time processing to moderate granularity. Often forms a complete set of sand production line with the cone crusher, counter attack crusher, sand making machine, etc.
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ASTM F1723, 2002 Edition, January 10, 2002 - Standard Practice for Evaluation of Polycrystalline Silicon Rods by Float-Zone Crystal Growth and Spectroscopy This practice recommends procedures for sampling polycrystalline silicon rods and growing single crystals from these samples by the float-zone technique. The resultant single …
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polysilicon and polycrystalline chunk materials to monocrystalline silicon. A monocrystalline silicon rod is used to test the resistivity (n-type or p-type), minority …
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Deposition on Rods The resultant highly pure trichlorosilane is used to make rods of hyperpure polycrystalline silicon (polysilicon). These rods are produced via chemical vapor deposition (CVD) at some 1,000 °C: 4 SiHCl 3 Si + 3 SiCl 4 + 2 H 2 Finally, the rods are crushed and packaged without contaminating the surface.
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The utility model discloses a move servo governing system's of hubei province polycrystalline silicon, monocrystalline silicon hubei province formula breaker relates to breaker technical field, including frame and feed inlet and the discharge gate of setting in the frame, the feed inlet below is equipped with moves hubei province board …
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The present invention relates to polycrystalline silicon chunks which are cubic and have a metal content of less than 200 pptw and a dopant content of less than 50 ppta. Methods for producing polycrystalline silicon chunks, comprising providing a polycrystalline silicon rod, comminuting the polycrystalline silicon rod into cubic chunks, and cleaning the …
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The present article gives a summary of recent technological and scientific developments in the field of polycrystalline silicon (poly-Si) thin-film solar cells on foreign substrates.Cost-effective fabrication methods and cheap substrate materials make poly-Si thin-film solar cells promising candidates for photovoltaics.However, it is still the …
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According to the energy efficiency analysis, the average energy consumption for the existing 24-rod Siemens reactor can be decreased from 55 kWh per kilograms polysilicon to approximately 36 kWh ...
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Examples of the breaking tool include a manual hammer and a mechanical impact tool such as a jaw crusher, a roll crusher, and a hammer mill. ... The polycrystalline silicon rod was crushed with a hammer in which a material of a striking part is composed of a tungsten carbide/cobalt alloy (the amount of tungsten carbide: …
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NEW Patent CD for Roll crusher to produce high purity polycrystalline silicon chips : Everything Else. Skip to main content.us. Delivering to Lebanon 66952 Update location All. Select the department you want ...
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