Types of keels
Keel includes triangular keel, light steel keel, wood keel, lacquer keel and keel of other materials, which are often used in construction.
1. Wooden keel
This kind of keel is made of pine, fir and other soft wood materials that are easy to nail. The wooden keel should be straight, without twisting, hard bending and splitting. The section size of the main keel should be 40mmx60mm, the section size of the secondary keel should be 30mmx40mm, and the section size of the hanging bars should be 50mmx70mm. With wooden keel, you can easily make various shapes. When using wood keel, it should be noted that the wood must be dry. For the sake of safety, it is best to do fire-proof treatment before using the wooden keel, and paint it with moisture-proof and arson-proof paint. White pine can be used.
2. Light steel keel
The light steel keel of the ceiling should be 50 series, the wall thickness of the galvanized sheet should not be less than 1mm, the primary and secondary keels and connecting parts should be galvanized, and the coating should be intact. The keel should be straight, without bending and twisting. The hanging bars of the light steel keel should be made of steel bars, and the fixing parts are made of angle steel, and the specifications are generally 30mmx30mmx3mm. Both the hanging bars and the fixed angle steel should be painted with anti-rust paint.
3. Aluminum alloy keel
When choosing this type of keel, it should be noted that the wall thickness should not be less than 0.8mm, and the surface should be treated with anti-corrosion methods such as anodizing, spraying or baking paint. When purchasing, it should be noted that the anti-corrosion layer on the surface should be intact and not damaged. Qualified aluminum alloy keel should be straight and without distortion.
4. Triangular keel
Triangular keel, also known as T-shaped keel, is a commonly used material on ceilings. Because its shape is a regular triangle, it is called a triangular keel. Triangular keel is a kind of paint keel. Triangular keel is made of high-quality continuous hot-dip galvanized sheet and strip as raw material and rolled by cold-bending process. Triangular metal skeleton for construction. Usually installed and used together with light steel keel, the light steel keel is U-shaped.
