low temperature curing powder coating

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.