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Ferrofluidic is the brand name of a staged magnetic liquid rotary sealing mechanism made by the Ferrotec Corporation. Ferrofluidic seals, also known as magnetic liquid rotary seals, are employed in various rotating equipment to facilitate rotary motion while ensuring a hermetic seal.
First a ferrofluid is placed inside a container that is wrapped with a coil of wire. The ferrofluid is then externally magnetized using a permanent magnet. When external vibrations cause the ferrofluid to slosh around in the container, there is a change in magnetic flux fields with respect to the coil of wire.
Food-grade lubricants are specialized industrial lubricants designed for use in environments where there is potential for incidental contact with food or beverages. These lubricants are used to ensure both the proper functioning of machinery and the safety of the products being processed.
Food contact material pictogram (left) on a plastic food container in Hong Kong. Food contact materials or food contacting substances (FCS) [1] [2] are materials that are intended to be in contact with food. These can be things that are quite obvious like a glass or a can for soft drinks as well as machinery in a food factory or a coffee machine.
There are several examples of FGMs in nature, including bamboo and bone, which alter their microstructure to create a material property gradient. [3] In biological materials, the gradients can be produced through changes in the chemical composition, structure, interfaces, and through the presence of gradients spanning multiple length scales.
Food physical chemistry concepts are often drawn from rheology, theories of transport phenomena, physical and chemical thermodynamics, chemical bonds and interaction forces, quantum mechanics and reaction kinetics, biopolymer science, colloidal interactions, nucleation, glass transitions, and freezing, [8] [9] disordered/noncrystalline solids.
Rulon 641, white, U.S. Food and Drug Administration compliant; Rulon W2, used in fresh water applications; Rulon 123, FDA compliant with low and consistent friction characteristics; Rulon 488, inorganic filler used for compatibility with most surfaces; Rulon 957, green speckled, bearing grade with noise dampening characteristics
Brand GmbH, Finemech, Savillex and Nalgene are well known laboratory suppliers that makes extensive use of the two materials. It is also used in UV cured resin 3D printing. Due to the aforementioned properties of high optical transparency and low friction, it is ideally suited for use on the bottom of the resin reservoir (opposite the build plate).