[China Aluminum Network] The aluminum materials used for the ceiling are all aluminum alloys, and there can be no pure aluminum (the pure aluminum is too soft and the strength is not enough). However, due to the different alloy contents and the different mechanical properties of aluminum alloys, the aluminum alloys currently used in domestic ceiling materials fall into about five categories:
The former species: aluminum-magnesium alloy, also contains part of manganese, the material has the advantage of good oxidation resistance, and because of the content of manganese, it has a certain strength and rigidity, and is an ideal material for smallpox.
The second type: aluminum-manganese alloy, the strength and stiffness of this material is slightly better than aluminum-magnesium alloy. However, the antioxidant capacity is slightly lower than that of aluminum-magnesium alloys. If both sides of the protective treatment, basically to solve its anti-oxidation ability is not as good as aluminum-magnesium alloy good shortcomings.
The third type is aluminum alloy, which has less manganese and magnesium. Therefore, its strength and rigidity are significantly lower than aluminum-magnesium alloys and aluminum-manganese alloys. Because it is soft and easy to process, as long as it reaches a certain thickness, it can basically meet the basic flatness requirements of smallpox. However, its antioxidant capacity is obviously inferior to aluminum-magnesium alloy and aluminum-manganese alloy. And it is easy to deform during processing, transportation and installation.
The fourth type: ordinary aluminum alloy, the mechanical properties of this material is not stable.
The fifth category: The raw material of this kind of board is the aluminum processing plant that melts the aluminum ingot and turns it into aluminum, and does not control the chemical composition at all. Due to the uncontrolled chemical composition, the properties of these materials are extremely unstable, leading to serious irregularities on the surface of the product, deformation of the product, and extreme oxidation.
Flexible lift gate is a flexible soft curtain door, inside and outside the two curtains, curtains used between the aluminum beams connected with a vertically movable rail, the roof beams have levels not in the same straight line and hangar large plants in particular be applicable. Flexible lift door installation does not take up interior space in the hole inside. When the fiest move to open the door, and finally superimposed over the hole. Off event curtain rail first and then fall down until it is completely closed.
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