First, the material requirements:
1, Material: aluminum veneer material selection should be consistent with the "aluminum alloy profiles" GB / T5237 requirements, commonly used material model 3003H24; this project to be used aluminum veneer thickness of 3mm.
2, coating: the use of fluorocarbon coating, coating times shall not be less than two, the thickness should be greater than 25μm; and fluorocarbon resin content should not be less than 75%; fluorocarbon coating should be no blistering, cracking, peeling phenomenon.
3, processing, storage and handling: aluminum veneer stiffener and connecting pieces can be welded, riveting, should be accurate location, fixed firmly; aluminum veneer surface should be affixed with polyethylene plastic protective film, protective film thickness of not less than 0.3mm , Aluminum veneer inside and outside the surface may not be scratched.
4, aluminum veneer processing size tolerance: Unit (mm)
Second, the main equipment:
1, Tools: welding machine, cutting saw, hand drill, riveting gun, cartridge gun, portable air pressure washer, pulley, brown rope, nylon rope, screwdriver, tool knife,
2, measurement, pay-off, test: level, theodolite, total station, steel tape measure, the level of foot, wire and so on.
Third, the main construction technology
1, the process: the measurement of pay-off → connection installation check → purlin, steel frame installation → metal plate installation → plate cleaning caulking → injection seal → surface cleaning
2, technical points:
A, determined by design sub-grid. According to the sub-grid plan to determine the baseline, pay-off.
B, according to the design position under the connector, connecting pieces with L50 * 50 * 5 galvanized angle code, M5 galvanized bolt.
C, the installation of steel frame: the main frame with 80 * 60 * 3 galvanized square steel pipe to determine the datum measurement error, adjust the horizontal, vertical, spacing error, welding frame, welding should be a solid weld full, Smooth; connection with the connector to be strong.
D, aluminum veneer - insulation sandwich plate plate installation:
1, aluminum veneer - sandwich panel assembly size should be consistent with the installation requirements, aluminum veneer and galvanized sheet size must be consistent between the board flat, no depression, from the drum phenomenon.
2, aluminum veneer - insulation sandwich panel connection angle with rivets fixed, should be fixed firmly, the location is correct.
3 plate installation: first plate for the first installation, the plate placed in the appropriate installation location, leveling angle code, temporary fixed, and then adjust the plate to adjust the standard should be horizontal and vertical joints, in the same plane. Immediately after the adjustment is fixed.
E, Note weathering sealant
1 Filling the glue joint: The glue joint is filled with the moisture-proof waterproof and the heat-resistant flame-retardant foaming agent, and choose the proper size, the qualified foam will be put into the seam to be injected, keep the foam and the plate side enough friction , And the foam strip was about 5 mm from the surface of the plate after the packing.
2 clean glue joints: plastic injection half an hour before the proposed injection with a clean cloth and xylene clean cloth, and fill the filler. Glue joints in the clean half an hour should be injected as soon as possible plastic, overtime should be re-cleaned.
3 scraper: scraper glue along the same direction along the glue flattened, and should pay attention to the curing time of the sealant.
F, cleaning finishing aluminum veneer in the final process to open the protective film, if the pollution has occurred, the application of neutral solvent cleaning, washed with water.
Fourth, the quality requirements:
A. The overall surface smooth, clean, consistent color; 5 ㎡ shall not have obvious depression; installation firm, tightly sewn;
B. Straight seam requirements, in the same horizontal / vertical line;
C. The dislocation of the adjacent plates shall not be greater than 1mm;
D. The slit width is the same, the error is not more than 3mm;
E. Adjacent plate joints height difference should not be greater than 1mm;
1, Material: aluminum veneer material selection should be consistent with the "aluminum alloy profiles" GB / T5237 requirements, commonly used material model 3003H24; this project to be used aluminum veneer thickness of 3mm.
2, coating: the use of fluorocarbon coating, coating times shall not be less than two, the thickness should be greater than 25μm; and fluorocarbon resin content should not be less than 75%; fluorocarbon coating should be no blistering, cracking, peeling phenomenon.
3, processing, storage and handling: aluminum veneer stiffener and connecting pieces can be welded, riveting, should be accurate location, fixed firmly; aluminum veneer surface should be affixed with polyethylene plastic protective film, protective film thickness of not less than 0.3mm , Aluminum veneer inside and outside the surface may not be scratched.
4, aluminum veneer processing size tolerance: Unit (mm)
Second, the main equipment:
1, Tools: welding machine, cutting saw, hand drill, riveting gun, cartridge gun, portable air pressure washer, pulley, brown rope, nylon rope, screwdriver, tool knife,
2, measurement, pay-off, test: level, theodolite, total station, steel tape measure, the level of foot, wire and so on.
Third, the main construction technology
1, the process: the measurement of pay-off → connection installation check → purlin, steel frame installation → metal plate installation → plate cleaning caulking → injection seal → surface cleaning
2, technical points:
A, determined by design sub-grid. According to the sub-grid plan to determine the baseline, pay-off.
B, according to the design position under the connector, connecting pieces with L50 * 50 * 5 galvanized angle code, M5 galvanized bolt.
C, the installation of steel frame: the main frame with 80 * 60 * 3 galvanized square steel pipe to determine the datum measurement error, adjust the horizontal, vertical, spacing error, welding frame, welding should be a solid weld full, Smooth; connection with the connector to be strong.
D, aluminum veneer - insulation sandwich plate plate installation:
1, aluminum veneer - sandwich panel assembly size should be consistent with the installation requirements, aluminum veneer and galvanized sheet size must be consistent between the board flat, no depression, from the drum phenomenon.
2, aluminum veneer - insulation sandwich panel connection angle with rivets fixed, should be fixed firmly, the location is correct.
3 plate installation: first plate for the first installation, the plate placed in the appropriate installation location, leveling angle code, temporary fixed, and then adjust the plate to adjust the standard should be horizontal and vertical joints, in the same plane. Immediately after the adjustment is fixed.
E, Note weathering sealant
1 Filling the glue joint: The glue joint is filled with the moisture-proof waterproof and the heat-resistant flame-retardant foaming agent, and choose the proper size, the qualified foam will be put into the seam to be injected, keep the foam and the plate side enough friction , And the foam strip was about 5 mm from the surface of the plate after the packing.
2 clean glue joints: plastic injection half an hour before the proposed injection with a clean cloth and xylene clean cloth, and fill the filler. Glue joints in the clean half an hour should be injected as soon as possible plastic, overtime should be re-cleaned.
3 scraper: scraper glue along the same direction along the glue flattened, and should pay attention to the curing time of the sealant.
F, cleaning finishing aluminum veneer in the final process to open the protective film, if the pollution has occurred, the application of neutral solvent cleaning, washed with water.
Fourth, the quality requirements:
A. The overall surface smooth, clean, consistent color; 5 ㎡ shall not have obvious depression; installation firm, tightly sewn;
B. Straight seam requirements, in the same horizontal / vertical line;
C. The dislocation of the adjacent plates shall not be greater than 1mm;
D. The slit width is the same, the error is not more than 3mm;
E. Adjacent plate joints height difference should not be greater than 1mm;