Continuous heat treatment device for hub blank

Abstract

The invention provides a continuous heat treatment device for hub blanks, comprising: a solid solution furnace for performing solution treatment on the hub blanks; a quenching pool for cooling the solution treated hub blanks; an aging furnace for performing aging treatment on the hub blanks; The hanger, the hub blank is hung on the hanger through the hook; and the material conveying line, the material conveying line is used to transport the hub blank to the designated position, the solid solution furnace is connected with the aging furnace through the connecting pipe, and the connecting pipe is equipped with an adjustment valve. In the continuous heat treatment device for wheel hub blanks provided by the present invention, the solid solution furnace and the aging furnace are arranged side by side, thereby reducing the occupied area of ​​the continuous heat treatment device, reducing the transportation distance of the hub blank between the solid solution furnace and the aging furnace, and increasing the The speed of the processing of the wheel blank by the equipment improves the production efficiency of the wheel hub; the wheel hub blank is heat-treated by hooking, so that the wheel hub blank is heated evenly, which improves the heat treatment effect of the wheel hub blank, and then reduces the influence of subsequent machining of the wheel hub blank , Improve the qualification rate of the hub.

Description

technical field [0001] The invention relates to the field of heat treatment, in particular to a continuous heat treatment device for hub blanks. Background technique [0002] At present, the continuous solid solution, quenching and aging heat treatment furnaces dedicated to aluminum alloy wheels are generally controlled at 520-550°C for solid solution furnaces and 140-160°C for aging furnaces due to different heating temperatures. In the technology, the solid solution furnace and the aging furnace are divided into two independent furnace equipment, which leads to large equipment investment, large floor area, and large energy loss. At the bottom of the furnace, the heated hub blanks are placed on the furnace rollers, and the rollers rotate slowly to push the hub blanks forward. In order to make effective use of the space in the furnace and improve the heat treatment speed and efficiency, the hub blanks are usually stacked in a material frame. Solid solution, quenching and ag...

AI Technical Summary

Problems solved by technology

[0002] At present, the continuous solid solution, quenching and aging heat treatment furnaces dedicated to aluminum alloy wheels are generally controlled at 520-550°C for solid solution furnaces and 140-160°C for aging furnaces due to different heating temperatures. In the technology, the solid solution furnace and the aging furnace are divided into two independent furnace equipment, which leads to large equipment investment, large floor area, and large energy loss. At the bottom of the furnace, the heated hub blanks are placed on the furnace rollers, and the rollers rotate slowly to push the hub blanks forward. In order to make effective use of the space in the furnace and improve the heat treatment speed and efficiency, the hub blanks are usually stacked in a material frame. Solid solution, quenching and aging are carried out in units of a whole frame, especially for motorcycle aluminum alloy wheels. Since the center hub of motorcycle wheels is usually wider than the rim, when stacking, it is mainly the center hub that is in contact with the force, and the rim is suspended in the air. The blanks are dumped and placed in a dislocation manner. The heating method is gas heating from the top, and the hot air is pumped to the bottom of the furnace by a fan to form convective heating. Due to the high stacking density of the hub blanks in the stacking method, the hub blanks are stacked on each other, and the hot air cannot fully contact with the hub. The contact between the surface of the blank causes uneven heating of some hub blanks and affects the heat treatment effect. After solid solution, quenching and aging, it is affected by various factors such as gravity and stress, and the hub blank is prone to deformation, resulting in defective products in subsequent machining.

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