论文部分内容阅读
图面的简单说明:图中示出了本发明的一个实例,图1是表示本发明原理装置的简略正视图,图2是从炉顶往下看的在平面上截取的实行本发明原理一种形式的水平断面图,图3是取去炉门明显看出的实行本发明原理的直接加热炉正面正视图,图4是从图3所示的直接加热炉中心剖开的立面断面图。发明的详细说明:本发明介绍有关较重的铝合金铸锭、毛坯等的加热方法。更详细的来说,为了使金属表面不受有害水斑,过度氧化或由此而产生的高温氧化的损害,本发明介绍了在直接加热炉中加热锅及其合金的铸锭或毛坯的热处理方法和加热装置。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic front view showing the principle apparatus of the present invention, FIG. 2 is a plan view of the principle of the present invention Fig. 3 is a front elevational view of a direct heating furnace embodying the principles of the present invention evident from removal of the door, and Fig. 4 is an elevational cross-sectional view taken through the center of the direct heating furnace shown in Fig. 3 . DETAILED DESCRIPTION OF THE INVENTION The present invention describes heating methods for heavy aluminum alloy ingots, blanks and the like. More specifically, in order to protect the metal surface from harmful water spots, over-oxidation, or damage to high-temperature oxidation resulting therefrom, the present invention describes the heat treatment of an ingot or blank heating a pan and its alloy in a direct heating furnace Method and heating device.