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Reasons for quality problems of china 5252 Aluminium Sheet coating
10-10
Coating is one of the most critical processes in the entire china 5252 Aluminium Sheet coil coating production line. The quality of the coated product, especially the apparent quality, directly affects the decorative effect of the product. Therefore, we must first master the common defects in the coating process and their causes.
1. Raw materials
Coatings and aluminum coils are the factors that most affect the coating quality in the coating process. Due to the color difference between batches of coatings, the fineness of the china 5252 Aluminium Sheet coating is not enough and the coating rate is not high, and the coating and solvent are not well matched. Delamination, etc. will directly affect the coating effect and cause defects. The unevenness of the aluminum coil substrate, the uneven film thickness, and the poor edge deflection also directly affect the product quality and overall use. Therefore, when selecting raw materials, it should be strictly controlled.
2. Equipment
The coating line requires the coating equipment to be in good condition, the coating equipment needs to run smoothly, there should be no horizontal and vertical jitter, and the coating roller needs to be finely ground. The lateral runout of all rollers of the coating machine must be controlled within the allowable range, otherwise it will seriously affect the surface quality of the coating.
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Henan Yongtong Aluminium Co., Ltd.
Business Contact Number：
86-021-6075 0718
86-371-5552 6225
Fax：86-021-6075 0710
Website：http://www.yotoalu.com/
Address:
Factory: Industrial Zone,Hui Guo Town, Gongyi City, Henan Province, China.
Intl' Office 1: Room 5E, Double Dove Great Tower, No.438, Pudian Road, Pudong New Area, Shanghai, China.