Oxygen/acetylene flame spraying

Flame spraying Fuel gas, acetylene-oxygen 3200 50-200 Wire Mostly metals 5-8 metals... 

Since shortly after its inception in 1955, AAS has been the standard tool employed by analysts for the determination of trace levels of metals. In this technique a fine spray of the analyte is passed into a suitable flame, frequently oxygen-acetylene or nitrous oxide-acetylene, which converts the elements to an atomic vapour. Through this vapour is passed radiation at the right wavelength to excite the ground state atoms to the first excited electronic level. The amount of radiation absorbed can then be measured and directly related to the atom concentration a hollow cathode lamp is used to emit light with the characteristic narrow line spectrum of the analyte element. The detection system consists of a monochromator (to reject other lines produced by the lamp and background flame radiation) and a photomultiplier. Another key feature of the technique involves... 

AAS has been the standard tool employed by analysts for the determination of trace levels of metals since shortly after its inception in 1955. A fine spray of the analyte is passed into a suitable flame, usually oxygen-acetylene or nitrous oxide-acetylene, which converts the elements to an atomic vapour. Through this vapour is passed... 

Flame spray (thermal spray) Melting small particles in a flame, such as an oxygen-acetylene torch, accelerating the molten particles in a high velocity gas stream (1200fl/sec), and splat cooling them onto a surface. 

In the sintering process, the sprayed powder is melted by gas or an oxygen flame and deposited on the workpiece (which has a temperature of approx. 80 °C) until the desired thickness is reached. The workpiece is then heated, either in a sintering furnace or by means of an acetylene burner to a temperature of approx. 1,050° C to enable the coat to melt-bond onto the workpiece. 

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