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2. 发明授权

US5052661A Controlling heat treating furnaces 失效
标题翻译：控制热处理炉
公开(公告)号：US5052661A
公开(公告)日：1991-10-01
申请号：US478826
申请日：1990-02-12
申请人： Mark J. Dunlay , James G. Baker
发明人： Mark J. Dunlay , James G. Baker
IPC分类号： C21D1/00 , C21D11/00 , F27D19/00 , F27D21/00 , G01J5/00 , G01J5/02 , G05D23/19 , G05D23/27
CPC分类号： F27D21/0014 , C21D11/00 , F27D19/00 , G05D23/1951 , G05D23/27 , F27D2019/0025
摘要： A method and apparatus for determining the correct temperature of a heated coil of sheet material and for using said measurement to control a heat treating furnace. The method includes providing a spot of heat resistant material having a known and constant emissivity that is substantially unity on an uneven edge of the coil, the material of the spot remaining on peaks of the uneven edge. The constant emissivity of the spot is independent of that of the edge, the emissivity of which changes and indicates a temperature is substantially different from the true temperature of the edge. The coil is heated and the spot emits infrared energy in an amount that is substantially representative of the correct temperature of the coil and edge. This infrared energy is sensed by an infrared detector aimed at the spot, the output of the energy being indicative of the true temperature of the edge and of the coil mass after it attains the temperature of the edge.
摘要翻译：一种用于确定片材的加热线圈的正确温度并使用所述测量来控制热处理炉的方法和装置。该方法包括提供具有已知且恒定的发射率的耐热材料点，其基本上在线圈的不平坦边缘上均匀，该斑点的材料保留在不平坦边缘的峰上。点的恒定发射率与边缘的恒定发射率无关，其发射率改变并表示温度与边缘的真实温度显着不同。线圈被加热，并且光点以基本上代表线圈和边缘的正确温度的量发射红外能量。该红外能量由位于该点的红外检测器感测，该能量的输出表示边缘和线圈质量达到边缘温度之后的真实温度。

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