What are the inspection standards for color coated rolls

Release time:

2022-09-16

Inspect the appearance of the color coated roll, including the smoothness, color, and absence of obvious scratches, dents, bubbles, foreign objects, etc. on the coating surface. The appearance requirements should meet the product specifications and relevant national standards.

Color coated roll (color coated roll) is a metal material with high decorative, anti-corrosion, and weather resistance, widely used in fields such as architecture, home appliances, and automobiles. The inspection standards for color coated rolls mainly include the following aspects:
Appearance quality
Inspect the appearance of the color coated roll, including the smoothness, color, and absence of obvious scratches, dents, bubbles, foreign objects, etc. on the coating surface. The appearance requirements should meet the product specifications and relevant national standards.
Dimension and Tolerance
Check the width, thickness, length and other dimensions of the color coated roll, as well as whether its tolerance meets the product specifications and relevant national standards.
Coating performance
The coating performance includes coating thickness, adhesion, hardness, wear resistance, corrosion resistance, etc. The testing of coating performance should be carried out in accordance with relevant national standards and industry norms.
Weather resistance
Weathering resistance refers to the anti-aging, UV resistance, salt fog resistance, moisture resistance and other properties of color coated roll in the natural environment. Weather resistance testing can refer to relevant standards and specifications.
Mechanical properties
Mechanical properties include bending, tensile strength, yield strength, elongation, etc. When inspecting the mechanical properties of color coated rolls, relevant standards and specifications should be referred to.
chemical composition
Inspect the chemical composition of the color coated roll, mainly including the composition of the coating material and the composition of the metal substrate. The detection of chemical composition should be carried out in accordance with relevant national standards and industry norms.

LATEST NEWS

Shandong Haoxuan met with Turkish customers

The occasion marked a significant milestone in our business relations as they expressed a keen interest in our seamless cold-rolled steel products.

2024-05-14

Signed strategic cooperation with Laigang for DH36 Marine section steel

Shandong Haoxuan Steel Co., Ltd. has proudly announced the signing of a strategic cooperation agreement with Laiwu Iron and Steel Group (Laigang) for the supply of 1,200 tons of DH36 marine steel, destined for a prestigious Japanese client.

2024-05-06

Hao Xuan met with Vietnamese Hai Phong

t not only strengthened the existing business relationship but also laid a solid foundation for deeper collaboration in the future. Both sides looked forward to exploring new opportunities together and driving mutual growth and success.

2024-04-16

Haoxuan met with posco business representatives in Vietnam

On April 8th, 2024, our company's business representative, Ms. Vela Ding, traveled to the Dong Nai Province of Vietnam to meet with Ms. Vo Thi Phuong Tuyen, a client from POSCO Enterprises.

2024-04-15

Haoxuan appeared at cippe2024 International Petroleum Exhibition

The participating team of Shandong Haoxuan Shidi Iron and Steel Co., Ltd. has gained a lot in this exhibition, not only seeing many cutting-edge technologies, but also expanding the business cooperation network.

2024-04-01

What is the difference between carbon steel and stainless steel

The density of carbon steel is slightly higher than that of ferritic and martensitic stainless steel, but it is lower for austenitic stainless steel, so the difference between carbon steel and stainless steel is different.

2022-09-16

Email : sales@hxsteelcn.com
Tel：+8619538022517

WhatsApp：+8619538022517
Add : Room1110, Floor 11,Fuying Tower 1,No.443, Changjiang East Road,Huangdao District,Qingdao City,Shandong,P.R.China

WeChat

GET A FREE QUOTE