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Machinery and equipment aluminum profiles should be noted when straightening and drawing

Update time : 2023-03-24 09:43:55

For aluminum manufacturers, it is an important step in the production of extrusion forming machinery and equipment aluminum profiles. If not straightening, extrusion machinery and equipment aluminum profiles bent and twisted, simply can not be used. But straightening is a technical activity, straightening and stretching should pay attention to the following points:

1. Cold bed wool will affect the heat dissipation of aluminum profiles, so it is necessary to continuously turn over before straight drawing in school, in order to facilitate uniform heat dissipation, uneven heat dissipation will lead to horizontal bright spots on the surface of machinery and equipment aluminum profiles, resulting in unqualified materials.

2. In the process of feeding and drawing, friction, stacking, stretching and winding between aluminum profile materials should be avoided. Gaps should be maintained between each material.

3. Cooling machinery and equipment aluminum profiles Cooling to below 60 degrees to correct, the temperature is too high will lead to unsafe, burn. The internal stress of machinery and equipment aluminum profiles has not been eliminated, forced stretching will lead to artificial aging bending, twisting and other defective products.

4. Machinery and equipment aluminum profiles can only be controlled at 1%, testing the straightening workers' technology. Excessive stretching can lead to excessive tolerances at both ends and intermediate positions of machinery and equipment aluminum profiles, surface scales, reduced elongation, and high hardness can lead to profile embrittlement and large bending.

5. Machinery and equipment aluminum profiles tensile straightening should pay attention to the width ratio of height, wall length, camber, wall thickness difference is large, grotesque and other profiles of small feet, thin teeth, long feet, circular surface, inclined plane, opening, viewing point and other stress conditions, avoid section or point scale deformation, distortion, screw and other shortcomings.

6. Stretching tools are also very important. The reasonable use of stretching pads must be considered when selecting suitable pads, especially for materials with large openings, circular arcs and large cantilevers.

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Ottilia Chtherian Cara

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