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The substrate is then rotated at speeds up to 10,000 rpm to spread the coating material by centrifugal force. A machine used for spin coating is called a spin coater, or simply spinner. [1] Rotation is continued while the fluid spins off the edges of the substrate, until the desired thickness of the film is achieved.
There are four basic parameters that are involved in spin coating: solution viscosity, solid content (density), angular speed, and spin time. [13] A range of thicknesses can be achieved by spin coating. Most commonly the thicknesses range from 1-200 μm. The main properties that affect the thickness of the film are viscosity and spin speed.
Slot-die coating is a non-contact coating method, in which the slot-die is typically held over the substrate at a height several times higher than the target wet film thickness. [23] The coating fluid transfers from the slot-die to the substrate via a fluid bridge that spans the air gap between the slot-die lips and substrate surface.
Spin casting, also known as centrifugal rubber mold casting (CRMC), is a method of utilizing inertia to produce castings from a rubber mold. Typically, a disc-shaped mold is spun along its central axis at a set speed.
SRG Global's Advanced Development Center opened in May 2010 in Taylor, a suburb of Detroit. The 46,000-square-foot (4,300 m 2) facility houses a chrome plating line and four injection molding presses ranging from 165 to 2,200 tons to create parts for coating and testing in the center’s on-site laboratories. The Advanced Development Center is ...
For techniques which involve multiple spinning fluids, the general criteria for the creation of fibers depends upon the spinnability of the outer solution. [29] This opens up the possibility of creating composite fibers which can function as drug delivery systems or possess the ability to self-heal upon failure.
Nordson Corporation is an American multinational corporation that designs and manufactures dispensing equipment for consumer and industrial adhesives, sealants and coatings. The company also manufactures equipment used in the testing and inspection of electronic components, technology-based systems for curing and surface treatment processes as ...
Zinc flake coatings create what is known as cathodic protection: the less noble zinc 'sacrifices' itself in order to protect the underlying metal. Steel can be protected in this way. The coating thickness is often between 5 μm and 15 μm, with thicker layers also possible where there are special requirements.