What are the advantages and disadvantages of aluminum-titanium alloy doors and galvanized doors?

Al-Mg-Ti alloy doors have strong corrosion resistance. The oxide layer of Al-Mg-Ti alloy does not fade or fall off, and does not need painting, so it is easy to maintain and does not need maintenance. The integral door of Al-Mg-Ti alloy can be inlaid with glass in a large area, which makes the indoor light full and bright, enhances the contrast between indoor and outdoor facades, and makes the room more layered.

Disadvantages of Al-Mg-Ti alloy doors;

After using Al-Mg-Ti alloy doors for a period of time, the flexibility will decrease and the relative resistance will increase.

2. Advantages of galvanized doors:

Galvanized doors have the advantages of uniform coating, strong adhesion and long service life. The weld seam of galvanized door is spirally and evenly distributed on the whole circumference of the spiral pipe, so the spiral pipe has high dimensional accuracy and high strength. Galvanized doors can easily change size. The weld seam of galvanized steel pipe with the same specification is longer than that of straight seam steel pipe, and the pressure of galvanized steel pipe with the same specification wall thickness is the highest.

Disadvantages of galvanized doors:

The weld defect of galvanized door is "oblique defect" In the process of use, the equivalent defect length of galvanized door in the direction of principal stress, that is, the axis direction, is less than that in the straight seam. Secondly, because galvanized doors are all rolled steel plates, the impact toughness has great anisotropy, and the CVN value along the rolling direction is three times higher than that perpendicular to the rolling direction.

Extended data:

Aluminum-titanium alloy composition:

The aluminum-titanium alloy contains 0.50- 1.20 wt% of magnesium, 0.80-2.30 wt% of manganese and 0.05-0. 1.05 wt% of titanium.

Al-Ti alloy impurities:

The total amount of impurities in Al-Ti alloy is less than 1.00% (by weight), and the rest is aluminum.

Characteristics of Al-Ti alloy;

Al-Ti alloy has the characteristics of high die casting yield, compact casting, high strength, no fracture, strong flexibility, good copper plating and coloring effect, and light specific gravity.

Galvanized appearance:

1. Surface condition: The galvanized sheet has different surface conditions due to different treatment methods in the coating process, such as common zinc flower, fine zinc flower, flat zinc flower, zinc-free flower and phosphating surface. German standards also stipulate the surface level.

2, galvanized sheet should have a good appearance, can not have defects harmful to the use of products, such as no coating, holes, cracks and scum, more than coating thickness, scratches, chromic acid dirt, white rust, etc. Foreign standards are not clear about specific appearance defects. When ordering, some specific defects should be listed in the contract.