Degassing rod for aluminum alloy wheel hub cast liquid aluminum
An aluminum alloy wheel hub and casting aluminum technology, which is applied in the field of aluminum alloy wheel casting liquid aluminum degassing rods, can solve the problems affecting the production qualification rate of wheel hubs and the mechanical properties of castings, aluminum alloy wheel hub casting needles, obvious slag holes, and the design of degassing rods. Imperfect and other problems, to achieve the effect of simple and reasonable structure, improved mechanical properties, and increased unit volume
Inactive Publication Date: 2014-08-06
湖北省阳新昂运铝轮有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the problems of imperfect design of existing degassing rods and incomplete degassing, resulting in obvious casting needles and slag holes of aluminum alloy wheels, which affect the qualified rate of wheel hub production and the mechanical properties of castings, etc., and provide an aluminum alloy wheel hub Cast aluminum liquid degassing rod
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[0012] see figure 1 , 2 , the present invention has a graphite rod 2, a central air channel 3 is opened on the graphite rod 2, and a graphite rotor 4 is installed at one end of the graphite rod 2, especially: six radially arranged exhaust holes are arranged on the graphite rotor 4 5. The exhaust holes 5 are arranged obliquely to the end surface, and the inner ends of the exhaust holes 5 are all communicated with the central air channel 3 .
[0013] In this embodiment, the exhaust hole 5 opened on the graphite rotor 4 has a diameter of 3mm, and the inclination angle with the end surface is 20°-25°, specifically 20°.
[0014] In this embodiment, a groove 1 is formed on the other end of the graphite rod 2 opposite to the graphite rotor 4 .
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Relating to the technical field of automobile component manufacturing tooling equipment, the invention relates to a degassing rod for aluminum alloy wheel hub cast liquid aluminum. The degassing rod has a graphite rod, which is equipped with a central airway. One end of the graphite rod is provided with a graphite rotor. The degassing rod is characterized in that: the graphite rotor is provided with at least three radially arranged exhaust holes, which are in inclined arrangement to the end face. And the inner ends of the exhaust holes are all communicated with the central airway. The degassing rod provided by the invention can effectively improve uniform dispersion of an inert gas in liquid aluminum, the degassing can be more thoroughly, so that casting needle and slage holes of aluminum alloy wheel hub casts can be reduced, the qualified rate of subsequent production can be improved, and especially, the density of casts can be improved and the mechanical properties of aluminum alloy wheel hubs are improved. The degassing rod is mainly used for degassing of aluminum alloy wheel hub cast liquid aluminum.
Description
technical field [0001] The invention relates to the technical field of tooling equipment for manufacturing auto parts, in particular to a degassing rod for aluminum alloy wheel hub casting molten aluminum. Background technique [0002] For the casting of aluminum alloy wheels, in the casting process of aluminum alloys, the degassing treatment of molten aluminum is an important process that affects the quality of aluminum alloy wheels. At present, the common liquid aluminum degassing is not completely degassed due to the improper structure design of the degassing rod, and the casting pins and slag holes of the aluminum alloy wheel hub castings are obvious, which affects the success rate of subsequent production and the mechanical properties of the castings, and even causes batches of aluminum alloys. Wheel repair, or even scrapped. Therefore, it is of great significance to improve the structural design of the degassing rod, especially to optimize the design of the vent hole ...
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IPC IPC(8): C22B21/06C22B9/05
Inventor 石显宝
Owner 湖北省阳新昂运铝轮有限公司
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