When choosing light steel keel, you should first choose the corresponding shape according to your own use. Light steel keel can be divided into U-shaped, C-shaped, T-shaped and L-shaped. Both U-shaped keel and C-shaped keel belong to load-bearing keel and can be used as partition keel. U-shaped as the main keel support, C-shaped as the cross brace keel clamping. Generally, T-shaped keel and L-shaped keel are used for ceiling, T-shaped keel is used for main keel and cross brace keel, and L-shaped keel is used for side keel.
2. Select the thickness of light steel keel
Light steel keel can't choose products below 0.6 mm When purchasing, you can look at the product specifications, length and thickness, and other information in the product description. The thickness of aluminum gusset plate is judged by naked eyes and hand feeling.
3, check the galvanized process of light steel keel.
In order to prevent rust, both sides of light steel keel should be galvanized, and the galvanized layer should be chosen without shedding and pitting. Such qualified products are guaranteed in moisture resistance.
4. Observe the "snowflake" on the light steel keel
After zinc plating, the surface of good quality light steel keel is snowflake-like. When buying a ceiling, you can pay attention to whether the keel has a snowflake-like galvanized surface. The keel with clear snow pattern, hard feel and small gap is of better quality.
5. Select the thickness of light steel keel.
Generally not less than 0.6 mm
6. Ensure that the light steel keel has an advanced facing system.
Because the finishing system can help: the flatness and straightness of the product are good, the internal stress is small, and the stress deformation is guaranteed.
7. Excellent corrosion resistance is required.
The product is required to adopt high-quality continuous hot-dip galvanized sheet as raw material, and the zinc layer has strong adhesion, and the amount of double-sided zinc plating reaches or exceeds the national standard of excellent products.
8. This product has a high section size standard, reaching the relevant national standards.
High standard section size, flange height higher than national standard, large moment of inertia, enhanced structural stability and convenient construction. For example, according to the national standard, the height of the U-shaped keel flange of the partition wall is greater than 35 mm, the products of most keel manufacturers are less than 35 mm, and the height of the U-shaped keel flange of the keel reaches 40 mm
9. Product manufacturers should have strong innovative research and development capabilities.
Manufacturers of light steel keel products should have a unique patented product series, and it is best to have products with special requirements such as ch keel, Z soundproof keel, unequal keel and E keel.