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Molino planetario de bolas PM 400

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Informes técnicos (17)

Materias primas renovables a la vanguardia
Particularidades de la preparación de plantas
La Fragmentación
Por lo general se asocia a la noción "fragmentación", el machacamiento, de sustancias sólidas mediante fuerza mecánica. Pero también la división de líquidos en gotas o de gases en bollas representa un proceso de fragmentación.
Nano particles with a huge effect
Scientists have been studying nano particles (extremely small particles of less than 100 nanometers in diameter) for many years. On the basis of nano particles, new and innovative properties are developed, e. g. semiconducting or surface properties, such as the lotus effect, which open up possibilities previously unknown. There are various methods to produce nano particles. The “bottom up” technique involves synthesizing the particles from atoms and molecules. With the “top down” method, the particles are reduced to nanometer size by grinding. A suitable tool for this method is a planetary ball mill, such as RETSCH’s PM 100, PM 200 or PM 400, which provides the necessary energy input for grinding down to the nanometer range.
Preparation of Soil, Sewage Sludge and Sediment Samples in a Wastewater Treatment Laboratory
The preparation of a mixture of organic and inorganic samples holds some difficulties: whereas sand, clay and stones can usually be ground to homogeneous samples with suitable laboratory mills, the high energy input can cause samples with organic components such as fat or starch to cake. Carsten Bunn, a laboratory technician at the waste water treatment laboratory BRW, has to deal with this problem every day. He treats samples which are taken from the sand traps of the wastewater treatment plants and consist of exactly that mixture. The sediments of household and industry waste water not only contain sand, clay or leaves but anything that people nowadays dispose of through the sewer system: cellulose, hair and especially food residues.
Green Chemistry in the Lab
Mechanochemistry is a very effective method to carry out syntheses without solvents and by-products. The technical literature describes a great number of reactions where a conversion of 100% is achieved. A precondition for the establishment of mechanochemistry in the industrial sector is the availability of suitable laboratory mills. A decisive factor is that – similar to conventional preparative chemistry – ambient parameters such as pressure and temperature can be documented and monitored. The Planetary Ball Mills and Mixer Mills from Retsch fulfill these requirements.
The preparation of samples of solid substances for spectroscopic analysis
X-ray fluorescence spectrometry is one of the most versatile multi-element methods of chemical analysis. The technique is based on excitation of fluorescent radiation from a sample by bombarding it with high energy X-ray quanta and subsequent study of the characteristic X-ray radiation emitted by its elements.
The Representative Sample Preparation of Waste
Now that a certain environmental awareness has developed in the population over the past few years, our efforts are geared not only to avoiding waste, but also to reducing the mountains of waste which still arise by means of raw material recovery and the reintroduction of secondary raw materials into the industrial cycle.
Höchstleistung im Doppelpack
Mit der PM 100 und der PM 200 präsentiert Retsch eine neue Generation von Planeten-Kugelmühlen mit einer bzw. zwei Mahlstellen, die in diesem Produktsegment neue Leistungsstandards setzen.
Herstellung von Nanopartikel mit der Planeten-Kugelmühle
Die Herstellung von Nanopartikeln, deren Größe im Bereich von 1 Mikron und kleiner liegt, ist in vielen technischen Bereichen immer mehr auf dem Vormarsch, denn sie ermöglichen die gezielte Veränderung von Materialeigenschaften.
Kleine Partikel - großer Effekt
Die Anwendungsmöglichkeiten von Nanopartikeln sind so vielfältig wie ihre Form und E igenschaften. Technisch lassen sich die „Zwerge“ beispielsweise durch Vermahlung größerer Partikel erzeugen. Planeten-Kugelmühlen erreichen die für diese Nanovermahlung nötigen E nergieeinträge.
Thermoelektrische Wandler - Eine Technologie aus der Raumfahrt
Mechanisches Legieren von thermoeletrischen Materialien für die Raumfahrt, entwickelt vom Institut für Werkstoff-Forschung in Köln, Arbeitsgruppe "Thermoelektrische Materialien".
Zusammenspiel der Kräfte
Planeten-Kugelmühlen ermöglichen mechanisches Legieren dank ihrer hohen Zerkleinerungsenergie

Mechanisch legierte Werkstoffe haben schon längst ihren Einzug in die moderne Werkstofftechnik gehalten. Viele neue Werkstoffe und Werkstoffkomposite wurden in den letzten Jahren durch intensive Forschung entwickelt und werden bereits industriell hergestellt. Mechanisches Legieren ist ein gängiges Verfahren, um Werkstoffpaarungen oder Komposite zu synthetisieren, die auf konventionellem Wege nicht realisierbar wären, wie z. B. das Verbinden von Natur aus unmischbarer Legierungspartner. Das Werkzeug der Wahl dafür sind Planeten-Kugelmühlen.
使用电泳沉积法研究陶瓷微结构
Ceramic microstructures by electrophoretic deposition of colloidal suspensions
使用FTIR实时监测中间相对磷酸钙水泥骨架形成过程的影响
Monitoring of fast setting brushite bone cement
对用机械化学研磨方法从无定型相产生铌酸镁晶体的研究
Crystallization of magnesium niobate
机械研磨的方法合成纳米晶体Al-Si-Fe-X合金粉末
Mechanical milling and field assisted sintering consolidation of nanocrystalline Al-Si-Fe-X alloy powder
通过声波显微镜研究纯金属钛粉和钛粉以及铁-铜合金的纳米晶体机械性能
Determination of mechanical properties of nanocrystalline materials by means of acoustic microscopy : application of pure elements (Fe and Ti) and alloys (Fe-Cu)

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Referencias bibliográficas (4)

  • Chemical activation of MgH2; a new route to superior hydrogen storage materials

    We report the discovery of a new, chemical route for ‘activating’ the hydrogen store MgH2, that results in highly effective hydrogen uptake/release characteristics, comparable to those obtained from mechanically-milled material. Hydrogen is widely regarded as a promising alternative to carbonbased fuels; it can be produced from a variety of renewable resources and, when coupled with fuel cells, offers the prospect of near-zero emission of pollutants and greenhouse gases.1 However, the development of hydrogen as a major energy carrier will require solutions to many scientific and technological challenges. Foremost among these is the issue of hydrogen storage; the lightest of all the chemical elements has an excellent energy content per unit weight, but a low energy content per unit volume.

  • ISO 659 Oilseeds - Determination of oil content

    Ball Mills

  • Magnesium Hydrides

    PM 400

  • The Influence of Mechanical Milling and Subsequent Calcination on the Formation of Lithium Ferrites

    PM 400

Revista "la muestra" (12)

No. 36
El arte de la trituración - Tecnologías contemporáneas de trituración
No. 30
Molinos y medidores de partículas para el ANÁLISIS MEDIOAMBIENTA
No. 29
NOVEDADES La generación de productos del 2007
No. 21
Sample preparation for instrumental analysis
No. 17
Environmental Technology
No. 15
Preparation and testing of glass an ceramics
No. 05
Crushing: " We learnt it from nature"
No. 03
Comminution: "It all started with the impact and friction stone"
Nr. 04
Zerkleinerung: "Schneiden Sie sich nicht ins eigene Fleisch"
Nr. 06
Zerkleinerung: "Die Rolling Stones im Labor"
Nr. 10
Probenvorbereitung von Abfall- und Umweltproben
Nr. 11
Die neuen Schlagrotormühlen von RETSCH-für viele Produkte geeignet

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