The difference between the light steel keel and the painted keel is that the ordinary light steel keel is not coated, and the coating is made (galvanized), while the surface of the painted keel has been painted, generally divided into black and white, and a few are baked into other colors according to design requirements. Mainly because the paint keel is mostly used in the Ming keel, the baking varnish is to ensure that the exposed part does not rust and affect the appearance.
The light steel keel has a ceiling keel and a partition keel according to the purpose, and has V-shaped, C-shaped, T-shaped and L-shaped keels according to the section.
(1) Product specifications series The main specifications of the partition keel are divided into Q50, Q75 and Q100. The main specifications of the ceiling keel are divided into D38, D45, D50 and D60.
(2) Product marking method The marking order of the light steel keel is: product name, code number, width and height of the section shape, steel plate thickness and standard number. For example, the section shape is "C", the width is 50mm, the height is 15mm, and the thickness of the steel plate is 1. smm. The ceiling keel is marked as: Light steel keel for construction DC 5 0 XIS XI. SGBllg sl
(3) Appearance quality The shape of the light steel keel should be flat and the edges and corners should be clear. The incisions are not allowed to have burrs and deformations that affect the use. The galvanized layer is not allowed to have defects such as peeling, tumor, and shedding. For defects such as corrosion, damage, dark spots, pitting, etc., the test according to the specified method shall comply with the requirements of Table 2-81. When the appearance quality is checked, visual inspection shall be carried out under the condition that the light is bright at 0.5 m from the product. The surface of the light steel keel shall be galvanized and rust-proof. The double-sided galvanizing amount shall be not less than 120g/m*m, the first-class product shall not be less than 100g/m*m, and the qualified product shall not be less than 80g/m*m.
Characteristics of V-type hanging keel light steel keel
The V-type hanging keel, also known as the card keel, is an exclusive patented product of our company, and has applied for the national decorative material patent number (main dragon-ZL002 63956.4; deputy dragon-ZL003 34437.1). This product breaks the traditional form of ceiling keel in design and manufacture, and uses high-quality snowboard as raw material, which has strong fireproof, anti-rust and anti-aging properties. All functions have passed the national inspection (GB11981-2001), and the construction is convenient. The effect is outstanding and it is widely used in modern decoration engineering.
The two sides of the V-shaped groove are symmetrically and orderly arranged with an anchor-like hook. The hook can form an inch or metric combination with the auxiliary keel. The main keel and the auxiliary keel are connected with an eight-cm screw to make it stronger and durable. .
V-type hanging keel installation attention
1. When used for ceiling, the long side of the gypsum board must be laid perpendicular to the sub keel or flat in each city. The distance between the fixing piece (self-tapping screws) and the gypsum board is about 10-16mm. When tightening, the gypsum board must be with the skeleton. Secure
2. When fixing the plate, it should be fixed from the long side and the short side of the middle of one plate. After the nail is positioned, the nail head is slightly buried in the plate, but the plate surface must not be damaged;
3. When the gypsum board is docked, it must be tight. The joint must be reinforced with keel. The gypsum board should be installed under the condition of no stress. It should not be placed under strong pressure. It should be ensured that the bottom surface of the sub keel is in the same plane and the keel is connected. Should be staggered.
The paint keel is made of cold-rolled continuous hot-dip galvanized steel strip and baking strip as raw materials, and is formed by a cold-bending process and a thin-walled profile of a reasonable "T"-shaped cross-section structure.
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