How to make a ceiling in an elevator car, how to install a ceiling keel or a wooden bottom plate? St

First, the spacing of the wooden keel.

1. Use the horizontal tube to find the horizontal point, and use the ink fountain to play the horizontal line along the horizontal point; Second, light steel keel: wooden keel for the side dragon, the position of the light trough is made of wooden keel or woodworking board, there is a wooden production place must be brushed with fireproof coating, the keel is at least 50 or more, the spacing of three 0 cm is appropriate, the spacing of the suspension bar is 0-0 cm, the gypsum board and the board should be artificially reserved between the 5-bar millimeter gap, the gypsum board surface self-tapping screw is inverted one to two mm and do anti-embroidery treatment, to be smooth and firm, and the special-shaped line should be smooth; 3. Wooden keel: keel at least three * four or more, the spacing of three 0 cm is appropriate, the spacing of the suspension bar is 0-0 cm, the suspension bar is strictly forbidden to directly use the wooden wedge nail to the top, brush the strict fireproof coating until the color of the wooden keel is not visible, the keel is covered with a layer of full-foot willow eucalyptus core nine centimeter board and then on the gypsum board, between the gypsum board and the board to artificially reserve a 5-bar millimeter gap, gypsum board surface self-tapping screws inverted one - two mm and do anti-embroidery treatment, to be smooth and firm, special-shaped to achieve smooth lines; Fourth, aluminum gusset plate:

Strict requirements for the level, light steel keel bayonet teeth to align, keel spacing within 50, hanging bar spacing land 0-bar 0 cm is appropriate, on the board to be light, so as not to press the board out of the pit, the edge strip and the tile contact is not tight to use sealant to beat tight; 5. Aluminum-plastic panel: the wooden keel is at least three * four or more, the spacing of three 0 cm is appropriate, the spacing of the hanging rib is 0-0 cm, the brush is strict fireproof coating, the keel is covered with a layer of full-foot willow eucalyptus core nine-centimeter board, and then paste the aluminum-plastic board with universal glue, between the aluminum-plastic board and the board to artificially reserve a gap of three to four millimeters, and has been prepared to fill other colors to play the effect of dividing the grid, to be smooth and firm, the special-shaped lines should be smooth, and the corners of the folding surface should be smooth and unbreakable.

Second, plane the wood and brush it with fireproof coating.

3. Pop up the horizontal line of the ceiling on the wall, and fix a few longitudinal keels on the top as needed.

Fourth, the production of keel frame, can be nailed on the ground first, special-shaped top should be made of blockboard model 5, the use of boom to fix the wooden keel, and pay attention to adjust the horizontal and vertical land, reserve the lamp base plate or lamp trough position paint, by the electrician to connect the wire, and leave the wire bar, the cut gypsum board with self-tapping nailing.