鉱物/金属

アプリケーションデータベース

Please contact us for an individual consultation.

パンフレット (2)

Metallurgical Industry
Coal

情報誌 "the sample" (8)

No. 36
粉砕はアート－現代の粉砕技術

No. 34
2009年
新製品

No. 33
試料調整の具体例　＆　レッチェ新商品

No. 31
レッチェ・グランプリ＆２００８年新製品のご紹介

No. 29
新製品　2007年　新発売 GOLD　RUSHｷｬﾝﾍﾟｰﾝ

No. 28
Think big but grind fine!大型粉砕機特集号。

No. 26
CAMSIZER - Optical Particle Size and Shape Analysis

No. 24
Anniversary issue of the RETSCH customer magazine 10 years "the sample"

アプリケーションレポート (16)

できる限り純粋に
理想的な状態で粉砕が行われても、試料と粉砕容器の表面がこすれて起きる機械的ストレスによって粉砕容器の表面が摩耗します。しかし、粉砕機と粉砕容器を適切に選択することで、この摩耗を軽減することは可能です。もし試料を100μm未満に粉砕する必要がある場合は、非常に強い力が必要なので、その分、摩耗も大きくなります。

AS450コントロールを使った大容量の分級
大量のバルク材の分級には通常振動ふるい機が使われますが、ほとんどの振動ふるい機はバネの縦方向の振動を使って試験ふるいを振とうさせます。一方、AS450コントロールで採用されている分級方法は、縦・横・ねじれの三次元運動を使います。これは、試料を均等に試験ふるいの全面に移行させるので最も効果的な分級方法です。

カッティングミルSM300伝統からの革新
カッティングミルは試料調製に広く使われている粉砕機です。二次燃料の粉砕、再生可能な
バイオマスの研究開発、WEEE/RoHS対応の成分分析および有価金属の回収など、その
アプリケーションは多岐にわたります。

蛍光X線分析用の試料調製
蛍光X線分析は質量分析に広く使われている分析方法ですが、試料調製が正しく行われないと正確で再現性の高い分析結果が得られません。

Representative results require adequate sample preparation
The following situation is typical for many production plants: After a routine quality check, the production process is stopped or an already produced batch is suspended, because the analysis results were not within the relevant critical values. But does the tested product really deviate from the specifications? The quality control managers are convinced of this because modern analysis instruments provide results with very low tolerances. The sample in question was tested several times and the result was confirmed. The question is why the product does not match the specifications although the production parameters have not been changed in any way.
The possibility that the tested product is indeed deficient cannot be excluded. However, it is often not the product itself which causes irregular analysis results but a lack of understanding of the steps which come before the analysis.

Powerful Cutting Mill
The SM 300 excels especially in the tough jobs where other cutting mills fail. It has a freely selectable speed range from 700 to 3,000 rpm with high torque. The mill is convenient to operate and easy to clean. Reliable and extremely efficient sample preparation in the laboratory is now guaranteed with the SM 300.

Air Jet Sieving of Bulk Materials
Particle size analysis and particle size distribution are important criteria for the quality control of bulk materials. In a running production process, the results of a quality check must be available quickly to allow for immediate adjustment of the production parameters. Depending on the expected particle size and sample volume, different sieving methods and sieving machines are suitable for analysis. The method used for particle size analysis is primarily determined by the fineness of the material to be sieved. For dry sieving of samples with particle sizes below 40 microns, air jet sieving is the method of choice.

Representative sample preparation for XRF analysis
Preparing homogeneous samples by milling

Fast and Reproducible Sample Preparation with a Vibratory Disc Mill
The Vibratory Disc Mill RS 200 from Retsch is used for the quick, loss-free grinding of hard, brittle and fibrous materials to analytical fineness.

Cement - representative sample preparation is important
To produce high-quality cement, the mineralogical and chemical composition of raw materials as well as intermediate and finished products has to be determined. At each stage of the production, samples have to be taken, processed and analysed to ensure quality control without gaps. Retsch offers a range of instruments that are used for sample preparation during the complete production process, from the quarrying of the raw materials to the final product. The typical sample preparation process involves preliminary size reduction, sample division and fine size reduction before the sample can be submitted to further analyses....

Size reduction within the context of sample preparation
In general “size reduction” is taken to mean the disintegration of solid substances by mechanical forces without altering their state.

Consistent Milling on a Nano Scale
Planetary ball mills are helping scientists and engineers advance nanotechnology by providing a consistent way to produce nanoscale powders.

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.

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.

Molienda ultrarrápida y ultrafina
El nuevo molino ultracentrífugo ZM 200 de RETSCH es un molino de rotor no sólo extremadamente rápido y cuidadoso con el material molido, sino también de uso universal gracias a su amplia gama de accesorios.

プレスリリース (1)

Versatile Ultra Centrifugal Mill with New Cyclone
RETSCH’s powerful and versatile ZM 200 offers the ultimate in performance and operating comfort. It is used for the rapid size reduction of soft to medium-hard and fibrous materials down to 40 microns. Because of the efficient size reduction technique and the comprehensive range of accessories the ZM 200 ensures the gentle preparation of analytical samples in a very short time.
For applications which require an optimum air throughput (e. g. heat sensitive materials) or if larger sample volumes need to be processed, the use of a cyclone is recommended. RETSCH offers a re-designed cyclone with improved functionalities for collector volumes from 250 ml to 5 liters which adds to the ZM 200’s great flexibility.
Thanks to the wide range of accessories with different rotors, ring sieves and collectors, the ZM 200 can be easily adapted to suit a wide range of applications such as, for example, heavy-metal-free grinding, size reduction of abrasive materials or processing small volumes up to 20 ml.