Light weight steel keel is a metal skeleton for construction and decoration made of high-quality hot galvanized sheet as raw material and rolled by cold bending process. (Also known in the construction industry for the Light Steel Keel Roll Forming Machine.) Light steel keel is generally used with paper-faced gypsum board, decorative lightweight panels constitute the non-load-bearing walls, as well as building roofs, frame-type ceiling base material.
1. Light steel keel according to the use can be divided into ceiling keel, partition wall keel, according to the sectional form can be divided into V-type keel, C channel, ceiling t grid, wall angle profile, u channel.
2.Light steel ceiling keel can be divided into 38 series, 50 series, 60 series keel, 38 series, 50 series, 60 series keel refers to the width of the main keel, building decoration of the new ceiling keel called card keel, card keel is widely used in a variety of home improvement construction, card keel with the secondary keel connection is more convenient to improve the efficiency of the work, but the card keel is suitable for a small area of the lifting use However, card keel is suitable for small area lifting use, not suitable for large area use, especially the ceiling keel of the person.
3. The light steel ceiling keel consists of expansion bolts, boom, main keel, secondary keel, connectors, the main bone and secondary bone connected to the boom, along the wall keel common composition.
4.light steel keel boom often use 8mm diameter boom, installation spacing is generally 0.9m to 1.2m, the spacing of the main keel is 0.9m to 1.2m, the spacing of the secondary keel is 0.3-0.4m. when the ceiling needs to be on the people, need to use the 60 series of keel, when the length of the boom in the ceiling is greater than 1.5m should be set up to support the support pieces or conversion layer, to increase the strength of the keel.
5. light steel partition wall keel can be divided into 50 series, 75 series, 100 series keel, 75 series keel is often used in building decoration, mainly by the heaven and earth keel, vertical keel, transverse keel, the main construction method for the heaven and earth keel with expansion bolts fastening and vertical keel connection and rivets for reinforcement, after fixing a good vertical keel and transverse keel plus the card for connection, before installing the gypsum board need to be in the keel Before installing the gypsum board, it is necessary to fill the cavity with rock wool.
6. The wall thickness of the main keel and sub keel of the ceiling keel is not less than 1.5mm and 1mm respectively, and the wall thickness of the main keel of the partition wall keel is not less than 1mm.