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Very high deposition rates, up to 20 kg/h depending on the material density. No protective atmosphere required. Possibility to connect or combine dissimilar materials, such as metals with different melting point. Build-up dimensions limited only by the spray-gun and/or component manipulator. Capable to deposit almost all metals & alloys.
It was first invented in 1955 by H.B. Sargent, R.M. Poorman and H. Lamprey and is applied to a component using a specifically designed detonation gun (D-gun). The component being sprayed must be prepared correctly by removing all surface oils, greases, debris and roughing up the surface in order to achieve a strongly bonded detonation spray ...
Silica sand can be used as a type of mineral abrasive. It tends to break up quickly, creating large quantities of dust, exposing the operator to the potential development of silicosis, a debilitating lung disease. To counter this hazard, silica sand for blasting is often coated with resins to control the dust.
Spray paint being applied to a piece of equipment An LVLP system spray gun Spray painting is a painting technique in which a device sprays coating material ( paint , ink, varnish, etc.) through the air onto a surface.
The high spray outputs and large cross-sections require the work to be mechanised. Concrete spraying systems with duplex pumps are mainly used for working with wet mixes. Unlike conventional concrete pumps, these systems have to meet the additional requirement of delivering a concrete flow that is as constant as possible, and therefore ...
Rapid sand filters use relatively coarse sand (0.5 to 1.0 mm) and other granular media, such as anthracite, in beds of 0.6 to 1.2 metre depth to remove particles and impurities that have been trapped in a floc through the use of flocculation chemicals—typically alum. Since media other than silica sand can be used in such filters, a more ...
The depth of the sand bed is recommended to be around 0.6–1.8 m (2–6 ft) regardless of the application. This is linked to the maximum throughput discussed below. [5]: 302–303 Guidance on the design of rapid sand bed filters suggests that they should be operated with a maximum flow rate of 9 m 3 /m 2 /hr (220 US gal/ft 2 /hr). [7]
Grog is composed of 40% minimum alumina, 30% minimum silica, 4% maximum iron(III) oxide, up to 2% calcium oxide and magnesium oxide combined. [1]Its melting point is approximately 1,780 °C (3,240 °F).