Magnesium manganese roof bearing supply aluminum magnesium manganese bearing manufacturers 157-259-55558 aluminum roof mount installation introduces a high-strength aluminum roof mount holder, made of high-strength aluminum alloy open molding . The material using high-precision T6063 aluminum alloy material, the mechanical properties are satisfied: tensile and compressive strength ≥84.2Mpa, shear strength ≥48.9Mpa, caused by vertical extrusion mold mark depth of not more than 0.05mm. Magnesium manganese bearing roofing supply: aluminum alloy and steel in order to prevent direct contact with the material, causing the electrochemical reaction in the whole system design, we stand at the bottom of an aluminum alloy with a specially insulated heat pad. Figure roof insulation rubber insulation pads should be fixed bearing cast aluminum molding, as a whole piece, no seams and joints. When the project is arc curved roofing, sheet metal and easily mounts Straight Torx killed at catcher after two ends. Therefore, the head should be used at both ends of the holder of plum, rounded treatment before installation, and make it a lead angle, and roof edges to prevent the bearing inner wall friction, causing roof damage? Using special bracket, there is a significant the advantage that changes in the temperature of the entire roof system can freely slide, telescopic. This function is avoided due to the temperature change is large, retractable metal roof due to thermal expansion and contraction caused by the bite so buckle cover seam dislocation occurs, causing the roof leakage phenomenon. b aluminum bearing installation process is fixed bearing aluminum panel roof rafter wind load delivered to the force components, it directly affects the quality of the installation of wind performance roof. Aluminum support the entire roof installation process: pre-installation measurements actinomycetes → roofing aluminum support installation → Installation precision adjustment after the completion of the review → aluminum support. Before measurement aluminum bearing installation process ① install actinomycetes First, using theodolite, measured on the axis of the lead purlins surface as aluminum longitudinal control line bearing installation. Then, an aluminum support according to the three-dimensional coordinates of the key parts of running total station, for controlling the overall degree of curvature and curve. According roofing sheet anchor installation diagram setting out the position of the control points and control lines on the floor installation Surveying. The main control lines roof mounts for the roof of the parallel lines. The main control line holder for the roof of parallel lines? Installing roof of the starting line? On the first row seat position is reviewed, and its bearing spacing should be used to determine the scale. ② install roof mount installation quality control ideas aluminum support after roof installation, due to thermal expansion and contraction process, make the roof freedom slip to prevent incorrect installation due to bearing sliding roof The process will pull broken roof. When installing aluminum stand, install insulation underneath seat pad. Bearing installation symmetrical hit four self-tapping screws. When installing, you should enter a self-tapping screw, and then stand corrected once, adjusting bias, and note holder ends mounting direction should be consistent with the direction of the roof decking. After calibration is complete, and then into the other screws to secure it. After installation, you should control the degree of tightening the screws and nails to avoid sink or float nail. ③ After the installation is complete retest holder installation should put a positive slope (parallel with the roof). Before construction, the slope of the roof should be installed prior inspection purlins, timely correction does not meet the requirements in a timely manner during the installation process will install slope holder, put a positive (with a roof parallel) to be adjusted. Holder mounting accuracy as follows: first with a visual inspection of each column aluminum stand, to see whether in a straight line. Aluminum stand as a larger deviation, roof installation undercut, it will affect the roof of the free expansion, severe rib plate will be worn at a temperature effect. Therefore, if there is a large deviation found, respond to correct deviations have bearing until it meets the installation requirements. After the installation is complete bearing conduct a comprehensive inspection, using the anchor position for review by Torx cable way, inconsistent and slope of the dislocation, and the roof is not parallel to adjust. Elevation deviation ④ aluminum support Droop detail, and in the lower part of the roof can be fixed bearing, insert a certain thickness of EPDM gaskets, roof elevation to achieve compliance with the design requirements. As shown below: Fixed ⑤ high strength aluminum support fixing screws selection of high-strength aluminum support is by self-tapping screws directly fixed on purlins. Project on the use of ordinary carbon steel screws self-tapping screws and two stainless steel self-tapping screws, because different materials, its performance compared as follows: Material Advantages Disadvantages steel one, there is a strong self drilling capabilities, to facilitate construction ; 2, lower cost; one, by galvanizing corrosion, poor durability; 2, such as nail damage, roofing security risk; a stainless steel, stainless steel durability; 2, high cost; 1, require pre-drilling, construction inconvenience; 2, there is a possibility of electrochemical corrosion; due to different active metal contact will exist between the different electrochemical corrosion of metal. The basic conditions for the electrochemical corrosion potential difference generated by the existence of one, the second is direct contact. By increasing the rubber pad construction blocking medium to prevent galvanic corrosion to overcome its shortcomings, give full play to its advantages.