low temperature powder coating for wheels

In order to verify the feasibility of the application of low temperature powder in aluminum hub, this paper selects the low temperature curing powder coating and powder coating are compared firstly, low temperature curing of low temperature powder mechanism analysis; second determination of the characteristics of two kinds of baking powder and baking curve; third for the mechanical properties testing of the wheel after spraying (yield strength and reliability test (Experiment) and film adhesion, gravel impact, water resistance, salt spray test and balance test; at the end of the block paste) low temperature process applied in aluminum wheel production promotion make analysis and evaluation.

Powder coating in the whole coating technology is a rapid development of the field, because of its VOC emission is almost zero, the current background of green development of environmental protection is more driven by its rapid development. Powder coating have been used in the automotive wheel hub, the environmental protection of the construction and excellent coating properties to promote the rapid development of the automotive parts industry in recent years.

But the ordinary curing conditions of powder coating in more than 180 degrees Celsius, and some even as high as 200 DEG C, 25min, has high curing temperature and long time lead to shortcomings in the practical application of high energy consumption, high curing temperature and can lead to brittle parts. Car wheels for the main load-bearing components of the car, not only requires sufficient mechanical strength, but also requires sufficient toughness to ensure the impact resistance. Reducing the curing temperature of powder coating can increase the toughness of the wheel hub, reduce the production energy consumption and achieve the goal of energy saving and environmental protection.

At present, the low temperature curing powder has large quantities of energy saving and environmental protection in the field of home appliances, effectively reducing the energy consumption, but the traditional low temperature curing powder, leveling is poor, and the painting flat aluminum wheels and the appearance of the convection are higher, and therefore can not spray coating on aluminum hub, so in the industry of automotive aluminum low temperature curing powder, there is no use in large quantities, so if the aluminum wheel industry can adopt low temperature curing powder, there will be much room for improvement in energy saving and environmental protection.

Low temperature powder coating application in automobile hub application, the premise is the production of low temperature powder technology hub products to meet the current automotive performance standards, based on powder manufacturers of aluminum wheels for the performance test of low temperature powder (corrosion resistance DSC, DSC, IR, powder coating compatibility, particle size the experiment, resin content, impact resistance) on the basis of gravel for aluminum wheel special low temperature curing powder Guangzhou Qingtian powder first developed, through mechanical properties, low temperature powder coating on the aluminum wheel hub construction process, the coating film properties and coating paste performance balance block and a series of standard test on the application of low temperature curing powder in aluminum wheel industry made a series of feasibility study.