Process steps of dry hanging method

1, plate cutting. Cut in the construction site according to the requirements of design drawings. Due to the large specifications of the plate, it is advisable to use a stone cutting machine to cut, and pay attention to keeping the edges and corners of the plate straight and regular. 2. edge grinding. After the plate is cut, in order to make its corners smooth, it can be polished with a portable grinder. Step 3 drill holes. Adjacent plates are connected and fixed by stainless steel pins, and the pins are inserted into the holes on the side of the plates. Aperture Φ 5 mm, depth 12mm, drilled with electric drill. Because it is related to the installation accuracy of the plate, the drilling position is required to be accurate. 4. Slot. Because of the heavy weight of large stone, it is necessary to set a supporting fastener in the middle of the plate to support the weight of the plate, in addition to supporting the lower mouth of the plate with steel members. 5. Apply waterproof agent. Brush a layer of acrylic waterproof coating on the back of the board to enhance the waterproof performance of the external facing. 6, wall finishing. If there are local protrusions on the surface of concrete external wall that affect the installation of fasteners, they must be chiseled and trimmed. 7. pay off. Lead the floor elevation and axis position from the structure, pop up the horizontal and vertical control lines of the installation plate on the wall, and make ash cake to control the flatness of the plate installation. 8, metope besmear brushs waterproof agent. Because there is no mortar between the slab and the concrete wall, a waterproof agent is coated on the outer wall to prevent leakage that may be caused by material performance or construction quality. Strengthen the waterproof performance of the external wall. 9. Plate installation. The order of installing plates is from bottom to top. Pull two horizontal control lines at the upper and lower openings of the installation position of the bottom row of plates on the wall, and install the plates in place from the middle or yang angle of the wall. First install the first piece as a benchmark, and its flatness shall be subject to the predetermined ash cake, which shall be hung straight with iron wire and fixed after correction. After the installation of a row of plates, the previous row of fasteners should be fixed, with flat corners and vertical and horizontal joints. 10, steel plate fixation. The steel fastener and the wall are fixed by expansion anchor bolts. Fasteners are flat steel plates with bolt mounting holes and pin holes, which are adjusted according to the installation distance between the wall and the plate. The holes in the fasteners are all oval, so that the position can be adjusted during installation. 1 1. Waterproof treatment of slab joints. Waterproof treatment of stone facing joints adopts sealed silica gel for joint filling. Before joint filling, the flexible strip foam polyethylene material is embedded in the gap as the base material to control the sealing depth of the joint and strengthen the adhesive force of the sealant.