With the rapid development of the automotive industry in China, automotive wheels as a key component, the process technology of its production has been more and more people's attention, the traditional steel wheels have been gradually replaced by aluminum alloy wheels. Compared with steel wheels, aluminum wheels have a specific gravity reduction of one-third. They are light in weight and good in heat dissipation. The appearance is treated by spraying, polishing, electroplating, etc., and their appearance and corrosion resistance are greatly improved. A variety of grades on the car. In addition, with the increasing maturity of electrolytic aluminum technology, the purchase price of aluminum has also been recognized by the wheel manufacturer, which laid a good foundation for the promotion and application of aluminum wheels in the automotive industry. Since aluminum is a living amphoteric metal and is highly susceptible to corrosion under industrial atmospheric conditions, the surface treatment process is a key technology in the production of aluminum wheels.
At present, there are two main surface treatment methods for aluminum wheels. One is spray coating. The main process flow is as follows: casting heat treatment machine plus spray drying. The aluminum wheel handle treated by this kind of process has general appearance and corrosion resistance, and the market price is higher. The second is decorative plating. The main process is as follows: casting heat treatment machine and polishing plating. The aluminum wheel handle treated by this process has a bright mirror surface, noble chrome gloss and good corrosion resistance. It is mainly used in high-end cars. The purchase price is also higher. In Europe and the United States, the second process is widely used, because polished or chrome-plated aluminum wheels are very popular, with high added value and rapid increase in demand. For the surface treatment of such aluminum wheels, a new vibrating finishing process is widely used. The polished, wheeled hub has a glossy, smooth, clean appearance that enhances aesthetics and extends the life of the hub. The working principle is that the wheel hub is placed in a working slot and rotated in a certain direction. The vibration motor of the device drives the grinding medium and the special polishing mixture to roll, and the two are thoroughly mixed and ground to remove the oil on the surface of the part. Deburring, surface smoothing, light rounding. The forged good wheel hub can be directly processed, polished, polished and finished in one go, and the surface condition of the parts with good function of glazing, wear resistance and corrosion resistance is obtained. The light-processed automobile and motorcycle wheels have higher product added value, improve competitiveness and profit margin, and are favored by OEMs and after-sales spare parts sellers.
To achieve high efficiency surface finishing, it depends mainly on two factors. First, optimized technology (for example, using high-speed vibration principle); second, optimized equipment (such as Wheelabrator (Group)'s all-in-one functional finishing equipment will require several different machines to complete the burrs and polishing / Finishing, grinding, rounding, descaling and other dirt can be done in one operation with one piece of equipment. With the advancement of technology and equipment, the application field of this technology has been unprecedentedly developed, automotive aluminum alloy parts, wheels , engine components (drive gears, gearbox housings, transmission components), medical devices (prosthetics and other implantable devices), turbine blades, etc., finished parts, regardless of appearance, performance and service life improve.
A new generation of surface finishing technology represented by Wheelabrator (Group) vibratory finishing equipment, combined with advanced automation technology, to achieve the intelligence and controllability of the processing.
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