Basic understanding of Chongqing light steel keel villa
Chongqing light steel keel is made of galvanized steel strip or sheet steel for special rolling mill. The utility model has the advantages of high strength, good versatility, good fire resistance, simple installation, etc. It can be assembled with various gypsum boards, calcium-plastic boards, sound-absorbing boards, etc., and can be used as keel supports for wall partitions and ceilings. Widely used in various civil construction projects and textile industrial plants and other places. It has good interior decoration, sound insulation and other functions. The thickness of light steel keel varies from 0.4mm to 2.0mm. In general, when using gypsum plaster ceilings, most people will choose light steel joists, thin gypsum boards use thin joists, and gypsum thick joists. There are two kinds of keel galvanizing, one is hot dip galvanizing and the other is cold galvanizing. The price of hot-dip galvanizing is high, and the price of cold-dip galvanizing is low. Ceiling keel consists of load-bearing keel (main keel), covering keel (auxiliary keel) and various accessories. Light steel keel sections are U-shaped, C-shaped, T-shaped and L-shaped. The ceiling joists are called D and separate the joists code Q. Ceiling keel is divided into main keel (also called keel, load-bearing keel) and keel (also called keel, including keel and keel). Keel is divided into vertical keel, horizontal keel and Tong Guan keel. There are usually two kinds of dividing keels: vertical keels and earth keels; from model to 75, 50, 100 and 150. Vertical keel installation: The vertical keel has a square hole to fit the wall inside the pipe, so first determine the up and down direction of the keel and try to align the square hole. The length of the vertical keel should be less than the distance along the top and the inside of the ground keel (15) to facilitate sliding of the vertical keel along the top and along the ground keel. The spacing of Chongqing light steel keel is 45.3cm or 60.3cm, but the spacing of one gear should be reduced by 1/2 the width of the vertical keel. For wall surface installation of special structure, it will be cut along the ground and serrated along the top keel as required, and fixed to the ground and the top: the radius of the curved wall is 600 ~ 1500 cm, the vertical keel has 30 spacings, and it is bent into an S shape. Work face wall with radius of 100-600 cm, install vertical joist at 15 degrees. After completing the above process, use 4×8 or 4×10 (mm) core rivets to fix the vertical joists in the pre-drilled 4.2mm holes along the top and along the ground joists. The surface of Chongqing light steel keel shall be galvanized to prevent rust, and the amount of galvanizing on both sides shall not be less than 120 g/m×m. The keel keel is made of fire-resistant galvanized sheet, which is durable. It adopts economical layout structure and special connection method for loading and unloading. Time-saving and labor-saving, simple structure. The keel surface is galvanized steel, baked. The difference between the light steel keel and the painted keel is that the ordinary light steel keel is not coated, so that the surface of the coating (galvanized) and the baked keel is made of paint, usually black and white, and a few are baked in other colors. Design requirements, mainly because most of the baked keel is used on the keel, and the baking paint is to ensure it. If the exposed parts are not rusted, it will not affect the appearance. Mingming frame keel plane series, groove series, three-dimensional groove series. Concealed frame keel: Flat series, the overall plane effect of the painted keel is good, the lines are simple, and the appearance is elegant. The paint keel is safe, firm and beautiful, and is suitable for various mineral wool ceilings, aluminum square roofs, calcium silicate boards and other supporting constructions.