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POWDER COATING, March 2016 31 transferred will be lower due to the lower emitter temperatures; therefore, heating times will usually take longer. To sum up, the shorter the wavelength, the higher the emitter temperature and the available infrared power increases rapidly. PC For more information or to submit a question, contact Anne Goyer, execu- tive director of IRED, at 859/356- 1 5 7 5 ; a n n e @ g o y e r m g t . c o m ; http://www.ihea.org/?page=IRED. Send comments or questions to Alicia Tyznik, editor, at 651/287-5610; fax 651/287-5650; atyznik@cscpub.com. Or go to www.pcoating.com and click on Problem solving. You can submit a question for this column in a few key- strokes. For further reading, articles on this and other related topics are avail- able for purchase. Click on Article Index and select a category. Wien's Law allows peak wavelength to be predicted from temperature. Figure 4 Temperature (°C) Wien Distribution, Peak Wavelength versus Emitter temperature Peak Wavelength (μm) 1100 1000 900 800 700 600 500 400 300 200 100 0 0 1 2 3 4 5 6 7 8 9 10