[China Aluminum Network] China aluminum alloy doors and windows at the current corner of the use of angle extrusion machine to squeeze the bottom of the aluminum profile combined with the corner code. The working principle of this group angle method is unscientific. When the angle cutter of the angle grinder advances into the surface of the aluminum profile, the strength of the aluminum profiles encountered by the two angle cutters during the jacking process is different. The progress of jacking can't be kept consistent, and the damage stress on the aluminum profiles can't be constrained by the angle cutters, which causes the appearance of the aluminum profiles to be distorted locally and affect the quality of the group's angles.
In the European group of aluminum alloy doors and windows using the angle of the corner of the assembly angle, the advantages are as follows:
1. The corner connectors (moving corners) are connected by high-strength connecting bolts, and the corners of the chamfered units are used to move the corners without damaging the aluminum section (the outer dimensions do not appear distorted). The fourth corner is avoided. The problem of moving. Each worker can form a box of 15-25 per hour.
2. The corner connector (moving angle) is subjected to the "L" single-angle force test (up to 35000 Newtons), which is 20 times larger than the angled angle (about 1800 - 2000 Newtons) (extrusion angle) Due to the unreasonable connection structure, in the angular strength test, when the external pressure acts on the test angle, the extrusion of the aluminum alloy profile into the outer skin is affected by external forces, gradually flattening out of the final angle code; and the moving angle is due to With a reasonable connection structure, the pressure is directly transmitted to the movable corner itself during the test until the movable corner completely destroys the test corner.
3. The big advantage is that when the corners are misaligned, they can be loosened and re-tightened. This is an ordinary angle-type corner angle can not be compared!
4. The movable corners can realize the assembly of doors and windows on the spot. The aluminum doors and windows factory in Europe can do Asian doors and windows projects by relying on this feature of movable corners to ensure that the factory will cut and punch aluminum alloy profiles after receiving orders. The mounting holes for the movable corners are directly packed, and the movable corners, door and window hardware, etc. are directly shipped to the site for assembly.
5.Comprehensive cost performance: Although the price of the moving corners is slightly higher than that of the angled corners, the ergonomics is 5-8 times that of the angle unit (5樘/hour/person); the corner angle is The weight of rice is about 2.0-3.2kg/meter, but the unreasonable corner strength due to the group angle cannot be proportional to the weight of the corner-type corner.
6. Profile cost: Because of the advanced principle of the movable corner connection, the corner strength is reflected by the structure. With a small amount of aluminum, the profile chamber requires a small (thickness of 14 mm) compared to the traditional angular squeeze angle (thickness of about For 20 mm), the use of standard corners of the standard window material consumption can save 10% - 15% of the amount of aluminum used in profiles.
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