Beijing Jieke Aluminum Co., Ltd. is specialized in aluminum magnesium manganese metal roofing system materials and accessories, metal roof panel forming (pressing machine), aluminum magnesium manganese electric mouth machine, Jiao Chi electric mouth machine, manual mouth pliers, etc. An economic entity integrating R & D, manufacturing, and processing of equipment and tools.
The aluminum magnesium manganese roofing board generally uses a 3004 grade aluminum alloy material with a thickness of 0.9 mm, in which the magnesium content is between 0.8-1.3 and the manganese content is between 1.0-1.5. These contents range by 50%. In other words, the magnesium content is qualified if it reaches 0.8, and the manganese content is qualified if it is 1.0. Although the content can reach the national standard of 3004 grade, because the physical properties of the board processed at a low level cannot meet the requirements of the roof panel, the tensile strength is lower than 260 MPa. The elongation rate is less than 10% (3% of the national standard is qualified). The physical properties cannot guarantee the quality of the roof panel. The content of magnesium should be above 1.0, and strictly should be above 1.1. The content of manganese should be above 1.2, strictly above 1.3, the physical properties must be above 260 MPa, and the elongation rate must be 10% to ensure that it will not crack after molding, and the pull-out force after occlusion can resist the second. Wind speed of 24 meters.
Aluminum magnesium manganese characteristics:
The vertical bite is exposed without screws, which solves the world problem of rain on the steel structure roof;
The length of each board is unlimited, and no splicing is required. Eliminate hidden dangers of rain leakage;
Light weight, ensuring the negative pressure of wind and the reserved load of snow, safe and reliable;
Roof panel coating insulation does not affect the lightning protection effect. rest assured!
The sound-absorbing insulation layer reduces the sound of rain falling on the roof several times;
The unique structure of the roof panel makes it expand and expand under the temperature difference, and can move freely when it shrinks;
Free of ageing plastics and rubber materials, once and for all, maintenance-free for life;
Excellent performance-price ratio, one-time investment, maintenance-free, economical.