It is suggested that sg-alsi5 should be used as auxiliary material for welding aluminum magnesium manganese roof panel. If there is a certain length (10 mm) of overlap between the two plates, welding is easier.
Before welding, it is necessary to
solve the color coating on the aluminum magnesium manganese plate at the corresponding position. If there are chemical substances, the residual materials should be washed off with water.
2、 Cutting and sawing aluminum magnesium manganese plate
When cutting the plate, only angle grinder with trimming function is used. It is better to use a manual circular saw with sparse serration (9mm ~ 20mm serration height) or biting teeth. For example, cutting the roof edge of the straight roof can be
operated manually along the straight edge. When cutting the single aluminum magnesium manganese roof panel, it is suitable to use the saw with high strength.
Use ISS drill bit, refer to the requirements of bit manufacturer on
bolt and rivet hole. The hole diameter of self tapping screw depends on the type of material used and the size of self tapping screw. Before inserting the tightening member, remove the surrounding iron filings. The upper part of the drill bit should be
sealed tightly with gasket to protect the surface of drill fixture and component material.
Generallyspeaking, stainless steel screws can be used in the following situations:
Steel support structure:
The hole size should be 3mm more than the screw, the screw size should be a06.5mm, the hole size should be 3mm more than the screw, and the screw ruler should be a06.3mm aluminum support structure
The hole size is 3 mm more than the screw,
the screw size is a06.5 mm, the hole size is 3 mm more than the screw, and the screw size is a06.3 mm wood support structure;
The hole size is 3mm more than the screw, and the screw size is a06.5mm
When tightening the self tapping screw, when
using the slow turning screw driver, it should be deepened with its insertion depth until it can not be screwed again. Note that the speed of the screw should not be greater than 600 rpm. The support structure of pre drilling shall be consistent with
the manufacturer. The standard diameter of pre drilled wooden structure is 0.7m. The use of a 0.65mm screw is equivalent to drilling a hole with a diameter of 4.6mm.